From george.colpitts at gmail.com  Thu May  1 01:26:33 2014
From: george.colpitts at gmail.com (George Colpitts)
Date: Wed, 30 Apr 2014 22:26:33 -0300
Subject: GHC status report
In-Reply-To: <536128AF.7080209@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
Message-ID: <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>

To elaborate, in the past, I had a lot of problems using libraries from the
ghci prompt on the Mac but I haven't tried recently.

As an example, on the web
page<http://www.cs.yale.edu/homes/hudak/SOE/software1.htm>for the book
the Haskell School of Expression it says:

Note for OS X users: running graphics applications from GHCi is no longer
supported. Instead, one has to compile a graphics program using GHC in
order to run it (see example/GMIExamples.lhs for an example).

I had similar problems using the Yale Euterpea music program from ghci.
When I inquired I was referred to
https://ghc.haskell.org/trac/ghc/ticket/4244 and
https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is now
scheduled for 7.10.1


On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 30/04/2014 01:35, George Colpitts wrote:
>
>> It doesn't have anything about the dynamic linking changes made for 7.8.
>> I think it's worth mentioning the improvements we expect to get from
>> that. The highlights of the release notes do mention it, so maybe that
>> suffices.
>>
>> In particular, I'm hoping that it is going to fix a lot of problems with
>> using foreign libraries such as OpenGL from ghci. I could be wrong about
>> that though.
>>
>
> I'd like to understand more about what those problems are.  As a data
> point, at Facebook we're using static linking (I compiled GHC with
> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
> libraries and one gigantic shared library consisting of a ton of in-house
> C++ code, together with all our Haskell code into GHCi, and it works
> perfectly.  The key to using the static linker is to not use it for C++
> code - you want all your external C++ code in shared libraries and load
> those using the system linker.
>
> Dynamic linking has been a huge headache in GHC, and it's not clear that
> it's an overall improvement compared with the static linker.  Now that 7.8
> is out of the way, it's time to have a conversation about whether we want
> to do dynamic linking again for 7.10, or revert to static linking.  I think
> Austin is going to update https://ghc.haskell.org/trac/
> ghc/wiki/DynamicGhcPrograms, and then we'll see where we stand.
>
> Cheers,
> Simon
>
>
>
>
>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>
>>     As Austin has told us, there?s a draft of the *GHC Status Report for
>>     the HCAR*, here:____
>>
>>     https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>
>>
>>     Have we missed out something  you have been working hard on?  Do
>>     take a moment to add a bullet in an appropriate place (it?s a
>>     wiki).  I?d like to be sure that we are giving credit to all the
>>     appropriate people, so please help us fix that too.  GHC is a team
>>     effort.____
>>
>>     Deadline is 1 May I think.____
>>
>>     Thanks____
>>
>>     Simon____
>>
>>     __ __
>>
>>
>>     _______________________________________________
>>     ghc-devs mailing list
>>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>>
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
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From robstewart57 at gmail.com  Thu May  1 07:03:54 2014
From: robstewart57 at gmail.com (Rob Stewart)
Date: Thu, 1 May 2014 08:03:54 +0100
Subject: =?UTF-8?Q?Related_to_=238677=2C_I=27m_getting_=22p=5Fdyn=22_libraries_for_?=
 =?UTF-8?Q?package_=E2=80=98integer=2Dgmp=E2=80=99?=
Message-ID: <CA+ZOasK87cwWwLuOyx4LRKUWMrD-Z2ZYnPE3_WN=chpGTG+m+g@mail.gmail.com>

HI,

I'm getting hit by an issue relating to tick 8677
https://ghc.haskell.org/trac/ghc/ticket/8677

I'm sure the problem I'm facing is a user error, though I'm not sure
how to resolve it. I'm compiling with `-Odph -rtsopts -threaded
-fno-liberate-case -funfolding-use-threshold1000
-funfolding-keeness-factor1000 -fllvm -optlo-O3 -prof -auto-all`

--8<---------------cut here---------------start------------->8---
Top level:
    Failed to load interface for ?GHC.Integer.Type?
    Perhaps you haven't installed the "p_dyn" libraries for package
?integer-gmp??
    Use -v to see a list of the files searched for.
cabal: Error: some packages failed to install:
ripl-frontend-0.0.1 failed during the building phase. The exception was:
ExitFailure
1--8<---------------cut here---------------end--------------->8---

>From reading the ticket details, I see that  I probably should not be
using -dynamic-too. But how do I enforce this? I'm not using this flag
(see above). Moreover my ~/.cabal/config files includes the following:

--8<---------------cut here---------------start------------->8---
library-profiling: False
executable-dynamic: False
executable-profiling: False
--8<---------------cut here---------------end--------------->8---

What else am I to do?

--
Rob

From simonpj at microsoft.com  Thu May  1 07:29:17 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Thu, 1 May 2014 07:29:17 +0000
Subject: GHC status report
In-Reply-To: <536128AF.7080209@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>

| Dynamic linking has been a huge headache in GHC, and it's not clear that
| it's an overall improvement compared with the static linker.  Now that
| 7.8 is out of the way, it's time to have a conversation about whether we
| want to do dynamic linking again for 7.10, or revert to static linking.

I echo this. Dynamic linking has had many un-anticipated costs and it is still very far from sorted out.  It originally felt like a Fantastic Idea to give up our own linker and adopt the system linker, but it now feels to me like a black hole, endlessly sucking effort and increasing complexity.

My viewpoint is highly un-informed about details; I just watch the traffic going by.  And of course it does have benefits that doubtless generate less traffic.

Simon

| 
| 
| 
| >
| > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
| > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
| >
| >     As Austin has told us, there's a draft of the *GHC Status Report
| for
| >     the HCAR*, here:____
| >
| >     https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
| >
| >     Have we missed out something  you have been working hard on?  Do
| >     take a moment to add a bullet in an appropriate place (it's a
| >     wiki).  I'd like to be sure that we are giving credit to all the
| >     appropriate people, so please help us fix that too.  GHC is a team
| >     effort.____
| >
| >     Deadline is 1 May I think.____
| >
| >     Thanks____
| >
| >     Simon____
| >
| >     __ __
| >
| >
| >     _______________________________________________
| >     ghc-devs mailing list
| >     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
| >     http://www.haskell.org/mailman/listinfo/ghc-devs
| >
| >
| >
| >
| > _______________________________________________
| > ghc-devs mailing list
| > ghc-devs at haskell.org
| > http://www.haskell.org/mailman/listinfo/ghc-devs
| >

From simonpj at microsoft.com  Thu May  1 07:30:53 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Thu, 1 May 2014 07:30:53 +0000
Subject: Overloaded record fields: we ought to change the name of FldTy
In-Reply-To: <CAK-tuPY+PprdYOjf5UT6yfQkMD3c+QqgnPa_p8NKYNEKqf8c2Q@mail.gmail.com>
References: <CAK-tuPZFUmprPgBPNjzHyaU9RPZARaQAUEcmXFu+hgT+6qScsw@mail.gmail.com>
 <53611546.4030106@well-typed.com>
 <CAK-tuPY+PprdYOjf5UT6yfQkMD3c+QqgnPa_p8NKYNEKqf8c2Q@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0A590EAB@DB3PRD3001MB020.064d.mgd.msft.net>

I?m reviewing the patch now.

From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Johan Tibell
Sent: 30 April 2014 19:14
To: Adam Gundry
Cc: ghc-devs at haskell.org
Subject: Re: Overloaded record fields: we ought to change the name of FldTy

On Wed, Apr 30, 2014 at 5:22 PM, Adam Gundry <adam at well-typed.com<mailto:adam at well-typed.com>> wrote:
If possible, I'd prefer to merge the existing patches more or less as
is, then I can work on the library design without continually needing to
fix merge conflicts.

Agreed. We should try to get the patches in sooner rather than later to avoid extra work for you and allow people to try the feature.
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From kazu at iij.ad.jp  Thu May  1 07:32:06 2014
From: kazu at iij.ad.jp (Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=))
Date: Thu, 01 May 2014 16:32:06 +0900 (JST)
Subject: validate on Mavericks
Message-ID: <20140501.163206.1840638861309624749.kazu@iij.ad.jp>

Hi,

Many tests for validate on master fail on Mavericks. This is because clang
produces some warnings. Here is an example:

=====> AssocTyDef03(normal) 3519 of 3960 [0, 1649, 0] 
cd ./typecheck/should_fail && '/Users/kazu/work/ghc/bindisttest/install   dir/bin/ghc
' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopt
s -fno-ghci-history -c AssocTyDef03.hs    >AssocTyDef03.comp.stderr 2>&1
--- ./typecheck/should_fail/tcfail218.stderr    2014-04-23 09:26:45.000000000 +0900
+++ ./typecheck/should_fail/tcfail218.comp.stderr       2014-05-01 11:28:31.000000000
 +0900
@@ -1,3 +1,6 @@
+clang: warning: argument unused during compilation: '-fno-stack-protector'
+clang: warning: argument unused during compilation: '-D TABLES_NEXT_TO_CODE'
+clang: warning: argument unused during compilation: '-I .'
 
 tcfail218.hs:10:5:
     Overlapping instances for C [a] b arising from a use of ?foo?


Any ideas to fix this?

--Kazu

From marlowsd at gmail.com  Thu May  1 10:09:32 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 01 May 2014 11:09:32 +0100
Subject: GHC status report
In-Reply-To: <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
Message-ID: <53621D5C.8010103@gmail.com>

On 01/05/2014 02:26, George Colpitts wrote:
> To elaborate, in the past, I had a lot of problems using libraries from
> the ghci prompt on the Mac but I haven't tried recently.
>
> As an example, on the web page
> <http://www.cs.yale.edu/homes/hudak/SOE/software1.htm> for the book the
> Haskell School of Expression it says:
>
>     Note for OS X users: running graphics applications from GHCi is no
>     longer supported. Instead, one has to compile a graphics program
>     using GHC in order to run it (see example/GMIExamples.lhs for an
>     example).
>
> I had similar problems using the Yale Euterpea music program from ghci.
> When I inquired I was referred to
> https://ghc.haskell.org/trac/ghc/ticket/4244 and
> https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is
> now scheduled for 7.10.1

I think we just punted on all the problems and assumed that dynamic 
linking would fix everything.  What we've found is that dynamic linking 
causes a whole new set of problems and complexities.  Meanwhile, many of 
the original problems have been fixed (except #781, which is kind of 
unfixable, but fortunately is also quite rare).

Unfortunately dynamic linking is needed to support GHCi and TH on 
unregisterised platforms.  In 7.8, GHCi and TH now works on some 
platforms where it didn't before (albeit not very widely used platforms).

Cheers,
Simon


>
> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com
> <mailto:marlowsd at gmail.com>> wrote:
>
>     On 30/04/2014 01:35, George Colpitts wrote:
>
>         It doesn't have anything about the dynamic linking changes made
>         for 7.8.
>         I think it's worth mentioning the improvements we expect to get from
>         that. The highlights of the release notes do mention it, so
>         maybe that
>         suffices.
>
>         In particular, I'm hoping that it is going to fix a lot of
>         problems with
>         using foreign libraries such as OpenGL from ghci. I could be
>         wrong about
>         that though.
>
>
>     I'd like to understand more about what those problems are.  As a
>     data point, at Facebook we're using static linking (I compiled GHC
>     with DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party
>     C++ libraries and one gigantic shared library consisting of a ton of
>     in-house C++ code, together with all our Haskell code into GHCi, and
>     it works perfectly.  The key to using the static linker is to not
>     use it for C++ code - you want all your external C++ code in shared
>     libraries and load those using the system linker.
>
>     Dynamic linking has been a huge headache in GHC, and it's not clear
>     that it's an overall improvement compared with the static linker.
>       Now that 7.8 is out of the way, it's time to have a conversation
>     about whether we want to do dynamic linking again for 7.10, or
>     revert to static linking.  I think Austin is going to update
>     https://ghc.haskell.org/trac/__ghc/wiki/DynamicGhcPrograms
>     <https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms>, and then
>     we'll see where we stand.
>
>     Cheers,
>     Simon
>
>
>
>
>         On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>         <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>__>
>         wrote:
>
>              As Austin has told us, there?s a draft of the *GHC Status
>         Report for
>              the HCAR*, here:____
>
>         https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>
>
>              Have we missed out something  you have been working hard
>         on?  Do
>              take a moment to add a bullet in an appropriate place (it?s a
>              wiki).  I?d like to be sure that we are giving credit to
>         all the
>              appropriate people, so please help us fix that too.  GHC is
>         a team
>              effort.____
>
>              Deadline is 1 May I think.____
>
>              Thanks____
>
>              Simon____
>
>              __ __
>
>
>              _________________________________________________
>              ghc-devs mailing list
>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>
>
>
>
>
>         _________________________________________________
>         ghc-devs mailing list
>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>
>

From slyich at gmail.com  Thu May  1 10:03:22 2014
From: slyich at gmail.com (slyich at gmail.com)
Date: Thu,  1 May 2014 13:03:22 +0300
Subject: [PATCH] make UNREG build as a platform with 0 hardware registers
Message-ID: <1398938602-16939-1-git-send-email-slyich@gmail.com>

From: Sergei Trofimovich <slyfox at gentoo.org>

83a003fcaec93dbfd5b46837f2bf3353412b9877 introduced optimization
which likes to know if a reg is a hardware reg via 'globalRegMaybe':

But --enable-unregisterised does not define that function:

    ghc-stage1: panic! (the 'impossible' happened)
       (GHC version 7.9.20140419 for x86_64-unknown-linux):
             globalRegMaybe not defined for this platform

CC: Simon Marlow <marlowsd at gmail.com>
Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>
---
 includes/CodeGen.Platform.hs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/includes/CodeGen.Platform.hs b/includes/CodeGen.Platform.hs
index 3d6dd41..1e7c17d 100644
--- a/includes/CodeGen.Platform.hs
+++ b/includes/CodeGen.Platform.hs
@@ -743,7 +743,11 @@ globalRegMaybe CurrentNursery           = Just (RealRegSingle REG_CurrentNursery
 # endif
 globalRegMaybe _                        = Nothing
 #else
+# ifdef NO_REGS
+globalRegMaybe _                        = Nothing
+# else
 globalRegMaybe = panic "globalRegMaybe not defined for this platform"
+# endif /* !NO_REGS */
 #endif
 
 freeReg :: RegNo -> FastBool
-- 
1.9.2


From p.k.f.holzenspies at utwente.nl  Thu May  1 12:59:23 2014
From: p.k.f.holzenspies at utwente.nl (p.k.f.holzenspies at utwente.nl)
Date: Thu, 1 May 2014 12:59:23 +0000
Subject: Unexpected failure to inline, even with pragma
Message-ID: <E7F535B24A47D747A07D46C0AA82D43D1C8028C9@EXMBX21.ad.utwente.nl>

Dear GHC-ers,

It seems I do not quite understand the behaviour of the inliner. Consider these two modules:


module Foo.Bar where

foo :: Char -> IO ()
foo = putChar

{-# INLINE bar #-}
bar :: String -> IO ()
bar = mapM_ foo



module Main where
import Foo.Bar
main = bar "done"


I would expect the inliner to produce at least (considering the pragma)

main = mapM_ foo "done"

or maybe even

main=mapM_ putChar "done"

However, when I compile this code, that inlining does not seem to happen:


$ ghc -ddump-inlinings -fforce-recomp Main.hs
[1 of 2] Compiling Foo.Bar          ( Foo/Bar.hs, Foo/Bar.o )
Inlining done: Foo.Bar.foo
[2 of 2] Compiling Main             ( Main.hs, Main.o )
Linking Main ...


Indeed, when I use -ddump-simpl, ghc reports:



==================== Tidy Core ====================
Result size of Tidy Core = {terms: 7, types: 5, coercions: 0}

Main.main :: GHC.Types.IO ()
[GblId, Str=DmdType]
Main.main = Foo.Bar.bar (GHC.CString.unpackCString# "done"#)

:Main.main :: GHC.Types.IO ()
[GblId, Str=DmdType]
:Main.main = GHC.TopHandler.runMainIO @ () Main.main



Can anyone explain why Foo.Bar.bar isn't inlined in Main.main?

Regards,
Philip


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From djsamperi at gmail.com  Thu May  1 13:48:03 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Thu, 1 May 2014 09:48:03 -0400
Subject: GHC status report
In-Reply-To: <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
Message-ID: <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>

The problem with some graphics libraries used via FFI (and other libraries
that are not thread-safe), if I understand the situation correctly, is that ghci
forks a thread when it shouldn't, causing some programs to miscalculate
the available stack space (because they think there is only one thread).

The new dynamic linking support and the flag -fno-ghci-sandbox fixes
this problem, and I would not vote for the removal of these features.

It is not clear to me from Simon's original post how linking to all of
those C++ libs can continue to work if dynamic linking is removed
in 7.10? Perhaps I misunderstand what you mean by "revert to
static linking"?

Thanks,
Dominick


On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
<george.colpitts at gmail.com> wrote:
> To elaborate, in the past, I had a lot of problems using libraries from the
> ghci prompt on the Mac but I haven't tried recently.
>
> As an example, on the web page for the book the Haskell School of Expression
> it says:
>
> Note for OS X users: running graphics applications from GHCi is no longer
> supported. Instead, one has to compile a graphics program using GHC in order
> to run it (see example/GMIExamples.lhs for an example).
>
> I had similar problems using the Yale Euterpea music program from ghci. When
> I inquired I was referred to https://ghc.haskell.org/trac/ghc/ticket/4244
> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is
> now scheduled for 7.10.1
>
>
> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>
>> On 30/04/2014 01:35, George Colpitts wrote:
>>>
>>> It doesn't have anything about the dynamic linking changes made for 7.8.
>>> I think it's worth mentioning the improvements we expect to get from
>>> that. The highlights of the release notes do mention it, so maybe that
>>> suffices.
>>>
>>> In particular, I'm hoping that it is going to fix a lot of problems with
>>> using foreign libraries such as OpenGL from ghci. I could be wrong about
>>> that though.
>>
>>
>> I'd like to understand more about what those problems are.  As a data
>> point, at Facebook we're using static linking (I compiled GHC with
>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>> libraries and one gigantic shared library consisting of a ton of in-house
>> C++ code, together with all our Haskell code into GHCi, and it works
>> perfectly.  The key to using the static linker is to not use it for C++ code
>> - you want all your external C++ code in shared libraries and load those
>> using the system linker.
>>
>> Dynamic linking has been a huge headache in GHC, and it's not clear that
>> it's an overall improvement compared with the static linker.  Now that 7.8
>> is out of the way, it's time to have a conversation about whether we want to
>> do dynamic linking again for 7.10, or revert to static linking.  I think
>> Austin is going to update
>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then we'll see
>> where we stand.
>>
>> Cheers,
>> Simon
>>
>>
>>
>>>
>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>
>>>     As Austin has told us, there's a draft of the *GHC Status Report for
>>>     the HCAR*, here:____
>>>
>>>     https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>
>>>
>>>     Have we missed out something  you have been working hard on?  Do
>>>     take a moment to add a bullet in an appropriate place (it's a
>>>     wiki).  I'd like to be sure that we are giving credit to all the
>>>     appropriate people, so please help us fix that too.  GHC is a team
>>>     effort.____
>>>
>>>     Deadline is 1 May I think.____
>>>
>>>     Thanks____
>>>
>>>     Simon____
>>>
>>>     __ __
>>>
>>>
>>>     _______________________________________________
>>>     ghc-devs mailing list
>>>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>     http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From mail at joachim-breitner.de  Thu May  1 14:14:12 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Thu, 01 May 2014 16:14:12 +0200
Subject: Unexpected failure to inline, even with pragma
In-Reply-To: <E7F535B24A47D747A07D46C0AA82D43D1C8028C9@EXMBX21.ad.utwente.nl>
References: <E7F535B24A47D747A07D46C0AA82D43D1C8028C9@EXMBX21.ad.utwente.nl>
Message-ID: <1398953652.2600.20.camel@kirk>

Hi,

Am Donnerstag, den 01.05.2014, 12:59 +0000 schrieb
p.k.f.holzenspies at utwente.nl:
> $ ghc -ddump-inlinings -fforce-recomp Main.hs

You need to pass "-O" to ghc.

(I didn?t check if that fixes it, but without it the optimizer does very
very little.)

Greetings,
Joachim

-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From eir at cis.upenn.edu  Thu May  1 14:26:47 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Thu, 1 May 2014 10:26:47 -0400
Subject: validate on Mavericks
In-Reply-To: <20140501.163206.1840638861309624749.kazu@iij.ad.jp>
References: <20140501.163206.1840638861309624749.kazu@iij.ad.jp>
Message-ID: <9FF77456-D0C1-4BED-8977-DC0C0601A06D@cis.upenn.edu>

I've posted this problem as #9047 (https://ghc.haskell.org/trac/ghc/ticket/9047), but I have no information to help you -- sorry!

Richard

On May 1, 2014, at 3:32 AM, Kazu Yamamoto (????) <kazu at iij.ad.jp> wrote:

> Hi,
> 
> Many tests for validate on master fail on Mavericks. This is because clang
> produces some warnings. Here is an example:
> 
> =====> AssocTyDef03(normal) 3519 of 3960 [0, 1649, 0] 
> cd ./typecheck/should_fail && '/Users/kazu/work/ghc/bindisttest/install   dir/bin/ghc
> ' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopt
> s -fno-ghci-history -c AssocTyDef03.hs    >AssocTyDef03.comp.stderr 2>&1
> --- ./typecheck/should_fail/tcfail218.stderr    2014-04-23 09:26:45.000000000 +0900
> +++ ./typecheck/should_fail/tcfail218.comp.stderr       2014-05-01 11:28:31.000000000
> +0900
> @@ -1,3 +1,6 @@
> +clang: warning: argument unused during compilation: '-fno-stack-protector'
> +clang: warning: argument unused during compilation: '-D TABLES_NEXT_TO_CODE'
> +clang: warning: argument unused during compilation: '-I .'
> 
> tcfail218.hs:10:5:
>     Overlapping instances for C [a] b arising from a use of ?foo?
> 
> 
> Any ideas to fix this?
> 
> --Kazu
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 


From ekmett at gmail.com  Thu May  1 14:27:16 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Thu, 1 May 2014 10:27:16 -0400
Subject: GHC status report
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>

Figured I'd make one case for dynamic linking:

https://github.com/ekmett/rounded

Dynamic linking is finally enabling us to build a version of MPFR bindings
for Haskell for scientific/high precision computing with 7.8. I would
really hate to lose it after all of these years trying to get it work, as I
have a rather large edifice being built atop that platform. We tried and
failed due to limitations of the old linker for almost 3 years.

That said, -dynamic-too seems to cause me all sorts of problems elsewhere.
^C'ing out of a build and restarting it will often make a .o but lose the
.dyn_o, leading to GHC + cabal getting confused and refusing to build until
I clean. This hits me several times a day.

-Edward


On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones <simonpj at microsoft.com>wrote:

> | Dynamic linking has been a huge headache in GHC, and it's not clear that
> | it's an overall improvement compared with the static linker.  Now that
> | 7.8 is out of the way, it's time to have a conversation about whether we
> | want to do dynamic linking again for 7.10, or revert to static linking.
>
> I echo this. Dynamic linking has had many un-anticipated costs and it is
> still very far from sorted out.  It originally felt like a Fantastic Idea
> to give up our own linker and adopt the system linker, but it now feels to
> me like a black hole, endlessly sucking effort and increasing complexity.
>
> My viewpoint is highly un-informed about details; I just watch the traffic
> going by.  And of course it does have benefits that doubtless generate less
> traffic.
>
> Simon
>
> |
> |
> |
> | >
> | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
> | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
> | >
> | >     As Austin has told us, there's a draft of the *GHC Status Report
> | for
> | >     the HCAR*, here:____
> | >
> | >     https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
> | >
> | >     Have we missed out something  you have been working hard on?  Do
> | >     take a moment to add a bullet in an appropriate place (it's a
> | >     wiki).  I'd like to be sure that we are giving credit to all the
> | >     appropriate people, so please help us fix that too.  GHC is a team
> | >     effort.____
> | >
> | >     Deadline is 1 May I think.____
> | >
> | >     Thanks____
> | >
> | >     Simon____
> | >
> | >     __ __
> | >
> | >
> | >     _______________________________________________
> | >     ghc-devs mailing list
> | >     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
> | >     http://www.haskell.org/mailman/listinfo/ghc-devs
> | >
> | >
> | >
> | >
> | > _______________________________________________
> | > ghc-devs mailing list
> | > ghc-devs at haskell.org
> | > http://www.haskell.org/mailman/listinfo/ghc-devs
> | >
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From p.k.f.holzenspies at utwente.nl  Thu May  1 14:34:48 2014
From: p.k.f.holzenspies at utwente.nl (p.k.f.holzenspies at utwente.nl)
Date: Thu, 1 May 2014 14:34:48 +0000
Subject: Unexpected failure to inline, even with pragma
In-Reply-To: <1398953652.2600.20.camel@kirk>
References: <E7F535B24A47D747A07D46C0AA82D43D1C8028C9@EXMBX21.ad.utwente.nl>
 <1398953652.2600.20.camel@kirk>
Message-ID: <E7F535B24A47D747A07D46C0AA82D43D1C80298B@EXMBX21.ad.utwente.nl>

Dear Joachim, et al.,

Yes, you were right, this does fix it. This confuses me even more as to why it *did* inline Foo.Bar.foo in Foo.Bar.bar without -O, though. Is -O required for optimization across module bounds?

Also, since I really want a certain level of inlining for a plugin I'm working on; is there a way to force (from the plugin, i.e. using the API) to force inlining of a term at its call-site? Alternatively (weaker), can I force - from a compiler plugin - the inliner to behave as if -O was set even if it wasn't?

I may be doing things in a roundabout way, but here's my thinking: I want to write a combinatory-library with a plugin that optimizes uses of this library using non-trivial domain knowledge. However, the primitive combinators for which my plugin is defined are hard to use. I want to offer users higher-level combinators that are expressed in terms of those primitive ones, but I don't want to complicate my plugin too much. If, somehow, I could make absolutely sure all the non-primitive combinators were inlined (again, this may be done using API-calls rather than pragma's), I could define my plugin-logic only in terms of the primitive ones... this would be bliss :D

Regards,
Philip



> -----Original Message-----
> From: Joachim Breitner [mailto:mail at joachim-breitner.de]
> Sent: donderdag 1 mei 2014 16:14
> To: ghc-devs at haskell.org
> Subject: Re: Unexpected failure to inline, even with pragma
> 
> Hi,
> 
> Am Donnerstag, den 01.05.2014, 12:59 +0000 schrieb
> p.k.f.holzenspies at utwente.nl:
> > $ ghc -ddump-inlinings -fforce-recomp Main.hs
> 
> You need to pass "-O" to ghc.
> 
> (I didn?t check if that fixes it, but without it the optimizer does very
> very little.)
> 
> Greetings,
> Joachim
> 
> --
> Joachim ?nomeata? Breitner
>   mail at joachim-breitner.de ? http://www.joachim-breitner.de/
>   Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
>   Debian Developer: nomeata at debian.org


From marlowsd at gmail.com  Thu May  1 21:27:00 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 01 May 2014 22:27:00 +0100
Subject: GHC status report
In-Reply-To: <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
Message-ID: <5362BC24.9030101@gmail.com>

On 01/05/14 14:48, Dominick Samperi wrote:
> The problem with some graphics libraries used via FFI (and other libraries
> that are not thread-safe), if I understand the situation correctly, is that ghci
> forks a thread when it shouldn't, causing some programs to miscalculate
> the available stack space (because they think there is only one thread).
 >
> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
> this problem, and I would not vote for the removal of these features.

So I understand how -fno-ghci-sandbox avoids problems with GUI libraries 
that use thread-local state.  But how is dynamic linking involved here? 
  What improved in GHC 7.8 relative to 7.6 for you? And could you 
clarify "miscalculate the available stack space"? What needs to 
calculate stack space? Why? C stack space?

We can certainly make a smoother experience around -fno-ghci-sandbox for 
using GUI libraries.

> It is not clear to me from Simon's original post how linking to all of
> those C++ libs can continue to work if dynamic linking is removed
> in 7.10? Perhaps I misunderstand what you mean by "revert to
> static linking"?

When I say "revert to static linking" I mean make GHCi static linked, 
and have it load Haskell code compiled for static linking using the RTS 
linker (like it did in 7.6).  Foreign libraries would still be loaded 
using the system linker, as they always have been.

To be clear, I'm not officially proposing that we drop dynamic linking, 
but I think it's worthwhile exploring the design space again, given that 
we know dynamic linking has been tougher than we expected.

Cheers,
Simon


> Thanks,
> Dominick
>
>
> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
> <george.colpitts at gmail.com> wrote:
>> To elaborate, in the past, I had a lot of problems using libraries from the
>> ghci prompt on the Mac but I haven't tried recently.
>>
>> As an example, on the web page for the book the Haskell School of Expression
>> it says:
>>
>> Note for OS X users: running graphics applications from GHCi is no longer
>> supported. Instead, one has to compile a graphics program using GHC in order
>> to run it (see example/GMIExamples.lhs for an example).
>>
>> I had similar problems using the Yale Euterpea music program from ghci. When
>> I inquired I was referred to https://ghc.haskell.org/trac/ghc/ticket/4244
>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is
>> now scheduled for 7.10.1
>>
>>
>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>
>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>
>>>> It doesn't have anything about the dynamic linking changes made for 7.8.
>>>> I think it's worth mentioning the improvements we expect to get from
>>>> that. The highlights of the release notes do mention it, so maybe that
>>>> suffices.
>>>>
>>>> In particular, I'm hoping that it is going to fix a lot of problems with
>>>> using foreign libraries such as OpenGL from ghci. I could be wrong about
>>>> that though.
>>>
>>>
>>> I'd like to understand more about what those problems are.  As a data
>>> point, at Facebook we're using static linking (I compiled GHC with
>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>> libraries and one gigantic shared library consisting of a ton of in-house
>>> C++ code, together with all our Haskell code into GHCi, and it works
>>> perfectly.  The key to using the static linker is to not use it for C++ code
>>> - you want all your external C++ code in shared libraries and load those
>>> using the system linker.
>>>
>>> Dynamic linking has been a huge headache in GHC, and it's not clear that
>>> it's an overall improvement compared with the static linker.  Now that 7.8
>>> is out of the way, it's time to have a conversation about whether we want to
>>> do dynamic linking again for 7.10, or revert to static linking.  I think
>>> Austin is going to update
>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then we'll see
>>> where we stand.
>>>
>>> Cheers,
>>> Simon
>>>
>>>
>>>
>>>>
>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>
>>>>      As Austin has told us, there's a draft of the *GHC Status Report for
>>>>      the HCAR*, here:____
>>>>
>>>>      https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>
>>>>
>>>>      Have we missed out something  you have been working hard on?  Do
>>>>      take a moment to add a bullet in an appropriate place (it's a
>>>>      wiki).  I'd like to be sure that we are giving credit to all the
>>>>      appropriate people, so please help us fix that too.  GHC is a team
>>>>      effort.____
>>>>
>>>>      Deadline is 1 May I think.____
>>>>
>>>>      Thanks____
>>>>
>>>>      Simon____
>>>>
>>>>      __ __
>>>>
>>>>
>>>>      _______________________________________________
>>>>      ghc-devs mailing list
>>>>      ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>      http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ghc-devs mailing list
>>>> ghc-devs at haskell.org
>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>


From marlowsd at gmail.com  Thu May  1 21:30:03 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 01 May 2014 22:30:03 +0100
Subject: GHC status report
In-Reply-To: <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
Message-ID: <5362BCDB.2060500@gmail.com>

On 01/05/14 15:27, Edward Kmett wrote:
> Figured I'd make one case for dynamic linking:
>
> https://github.com/ekmett/rounded
>
> Dynamic linking is finally enabling us to build a version of MPFR
> bindings for Haskell for scientific/high precision computing with 7.8. I
> would really hate to lose it after all of these years trying to get it
> work, as I have a rather large edifice being built atop that platform.
> We tried and failed due to limitations of the old linker for almost 3 years.

I understand the issues with MPFR.  But how is dynamic linking helping?

> That said, -dynamic-too seems to cause me all sorts of problems
> elsewhere. ^C'ing out of a build and restarting it will often make a .o
> but lose the .dyn_o, leading to GHC + cabal getting confused and
> refusing to build until I clean. This hits me several times a day.

We should fix this (or at least make it a lot less likely).  Is there a 
ticket?

Cheers,
Simon


> -Edward
>
>
> On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>
>     | Dynamic linking has been a huge headache in GHC, and it's not
>     clear that
>     | it's an overall improvement compared with the static linker.  Now that
>     | 7.8 is out of the way, it's time to have a conversation about
>     whether we
>     | want to do dynamic linking again for 7.10, or revert to static
>     linking.
>
>     I echo this. Dynamic linking has had many un-anticipated costs and
>     it is still very far from sorted out.  It originally felt like a
>     Fantastic Idea to give up our own linker and adopt the system
>     linker, but it now feels to me like a black hole, endlessly sucking
>     effort and increasing complexity.
>
>     My viewpoint is highly un-informed about details; I just watch the
>     traffic going by.  And of course it does have benefits that
>     doubtless generate less traffic.
>
>     Simon
>
>     |
>     |
>     |
>     | >
>     | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>     | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>> wrote:
>     | >
>     | >     As Austin has told us, there's a draft of the *GHC Status Report
>     | for
>     | >     the HCAR*, here:____
>     | >
>     | > https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>     | >
>     | >     Have we missed out something  you have been working hard on?  Do
>     | >     take a moment to add a bullet in an appropriate place (it's a
>     | >     wiki).  I'd like to be sure that we are giving credit to all the
>     | >     appropriate people, so please help us fix that too.  GHC is
>     a team
>     | >     effort.____
>     | >
>     | >     Deadline is 1 May I think.____
>     | >
>     | >     Thanks____
>     | >
>     | >     Simon____
>     | >
>     | >     __ __
>     | >
>     | >
>     | >     _______________________________________________
>     | >     ghc-devs mailing list
>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>     | >
>     | >
>     | >
>     | >
>     | > _______________________________________________
>     | > ghc-devs mailing list
>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>     | >
>     _______________________________________________
>     ghc-devs mailing list
>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     http://www.haskell.org/mailman/listinfo/ghc-devs
>
>


From carter.schonwald at gmail.com  Thu May  1 23:37:05 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Thu, 1 May 2014 19:37:05 -0400
Subject: GHC status report
In-Reply-To: <5362BCDB.2060500@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
Message-ID: <CAHYVw0ygVYVq1TpeeprRsKfoCDQghctpoKbgktYtYc83QkE7xA@mail.gmail.com>

 another example of a library that becomes usable in ghci with 7.8 is
llvm-general.
Namely, with ghc 7.8, when llvm-general is built so it dynamically links to
the system's LLVM library, I can run / invoke LLVM operations in GHCi.

I believe that this is due to the same reason many other libraries wouldn't
work in ghci historically, namely the GHC static linker can't handle
linking to the various  C++ things (i forget the names of the linkage
notions come up when loading C++, whatever those are)


hackage.haskell.org/package/llvm-general

mind you this is only when the sharedllvm flag is switched on.

This of course has the down side that an llvm-general install thats
suitable for interactive experimentation is not an llvm-beneral install
thats suitable for distributing static linked binaries.



On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 01/05/14 15:27, Edward Kmett wrote:
>
>> Figured I'd make one case for dynamic linking:
>>
>> https://github.com/ekmett/rounded
>>
>> Dynamic linking is finally enabling us to build a version of MPFR
>> bindings for Haskell for scientific/high precision computing with 7.8. I
>> would really hate to lose it after all of these years trying to get it
>> work, as I have a rather large edifice being built atop that platform.
>> We tried and failed due to limitations of the old linker for almost 3
>> years.
>>
>
> I understand the issues with MPFR.  But how is dynamic linking helping?
>
>
>  That said, -dynamic-too seems to cause me all sorts of problems
>> elsewhere. ^C'ing out of a build and restarting it will often make a .o
>> but lose the .dyn_o, leading to GHC + cabal getting confused and
>> refusing to build until I clean. This hits me several times a day.
>>
>
> We should fix this (or at least make it a lot less likely).  Is there a
> ticket?
>
> Cheers,
> Simon
>
>
>  -Edward
>>
>>
>> On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>
>>     | Dynamic linking has been a huge headache in GHC, and it's not
>>     clear that
>>     | it's an overall improvement compared with the static linker.  Now
>> that
>>     | 7.8 is out of the way, it's time to have a conversation about
>>     whether we
>>     | want to do dynamic linking again for 7.10, or revert to static
>>     linking.
>>
>>     I echo this. Dynamic linking has had many un-anticipated costs and
>>     it is still very far from sorted out.  It originally felt like a
>>     Fantastic Idea to give up our own linker and adopt the system
>>     linker, but it now feels to me like a black hole, endlessly sucking
>>     effort and increasing complexity.
>>
>>     My viewpoint is highly un-informed about details; I just watch the
>>     traffic going by.  And of course it does have benefits that
>>     doubtless generate less traffic.
>>
>>     Simon
>>
>>     |
>>     |
>>     |
>>     | >
>>     | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>     | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>> wrote:
>>     | >
>>     | >     As Austin has told us, there's a draft of the *GHC Status
>> Report
>>     | for
>>     | >     the HCAR*, here:____
>>     | >
>>     | > https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>     | >
>>     | >     Have we missed out something  you have been working hard on?
>>  Do
>>     | >     take a moment to add a bullet in an appropriate place (it's a
>>     | >     wiki).  I'd like to be sure that we are giving credit to all
>> the
>>     | >     appropriate people, so please help us fix that too.  GHC is
>>     a team
>>     | >     effort.____
>>     | >
>>     | >     Deadline is 1 May I think.____
>>     | >
>>     | >     Thanks____
>>     | >
>>     | >     Simon____
>>     | >
>>     | >     __ __
>>     | >
>>     | >
>>     | >     _______________________________________________
>>     | >     ghc-devs mailing list
>>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>
>>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>>     | >
>>     | >
>>     | >
>>     | >
>>     | > _______________________________________________
>>     | > ghc-devs mailing list
>>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>>     | >
>>     _______________________________________________
>>     ghc-devs mailing list
>>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From ekmett at gmail.com  Thu May  1 23:46:17 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Thu, 1 May 2014 19:46:17 -0400
Subject: GHC status report
In-Reply-To: <5362BCDB.2060500@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
Message-ID: <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>

With the old custom linker we weren't able to get our custom MPFR linked in
properly on all platforms for use in ghci.

On Macs we ran into some rather interesting problems. We could get it to
work for actual executables, but ghci would segfault with stuff resolved to
clearly wrong addresses. If I recall correctly it may have been some kind
of MachO symbol type that wasn't being resolved properly by the custom GHC
linker, perhaps? We chased after it off and on for a long time to no avail.

It was complicated a great deal by having to build their library and merge
it directly into ours, because we couldn't use system MPFR, due to the
issues with the GHC garbage collector hooks into GMP.

Switching to the system dynamic linker fo ghci seems to have resolved all
of that effortlessly.

Dan Peebles has been talking to the MPFR folks to see if we can get them to
expose enough information about the 'hidden' allocations they use that we
can make them visible to GHC or have them do what our local fix does and
avoid using the MPFR allocator for their hidden constant cache.

If they do that then we can actually link to the library like normal rather
than link it in directly, but it isn't clear to me what would happen even
with those hooks if we rolled back to something like the old custom linker.

-Edward


On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 01/05/14 15:27, Edward Kmett wrote:
>
>> Figured I'd make one case for dynamic linking:
>>
>> https://github.com/ekmett/rounded
>>
>> Dynamic linking is finally enabling us to build a version of MPFR
>> bindings for Haskell for scientific/high precision computing with 7.8. I
>> would really hate to lose it after all of these years trying to get it
>> work, as I have a rather large edifice being built atop that platform.
>> We tried and failed due to limitations of the old linker for almost 3
>> years.
>>
>
> I understand the issues with MPFR.  But how is dynamic linking helping?
>
>
>  That said, -dynamic-too seems to cause me all sorts of problems
>> elsewhere. ^C'ing out of a build and restarting it will often make a .o
>> but lose the .dyn_o, leading to GHC + cabal getting confused and
>> refusing to build until I clean. This hits me several times a day.
>>
>
> We should fix this (or at least make it a lot less likely).  Is there a
> ticket?
>
> Cheers,
> Simon
>
>
>  -Edward
>>
>>
>> On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>
>>     | Dynamic linking has been a huge headache in GHC, and it's not
>>     clear that
>>     | it's an overall improvement compared with the static linker.  Now
>> that
>>     | 7.8 is out of the way, it's time to have a conversation about
>>     whether we
>>     | want to do dynamic linking again for 7.10, or revert to static
>>     linking.
>>
>>     I echo this. Dynamic linking has had many un-anticipated costs and
>>     it is still very far from sorted out.  It originally felt like a
>>     Fantastic Idea to give up our own linker and adopt the system
>>     linker, but it now feels to me like a black hole, endlessly sucking
>>     effort and increasing complexity.
>>
>>     My viewpoint is highly un-informed about details; I just watch the
>>     traffic going by.  And of course it does have benefits that
>>     doubtless generate less traffic.
>>
>>     Simon
>>
>>     |
>>     |
>>     |
>>     | >
>>     | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>     | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>> wrote:
>>     | >
>>     | >     As Austin has told us, there's a draft of the *GHC Status
>> Report
>>     | for
>>     | >     the HCAR*, here:____
>>     | >
>>     | > https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>     | >
>>     | >     Have we missed out something  you have been working hard on?
>>  Do
>>     | >     take a moment to add a bullet in an appropriate place (it's a
>>     | >     wiki).  I'd like to be sure that we are giving credit to all
>> the
>>     | >     appropriate people, so please help us fix that too.  GHC is
>>     a team
>>     | >     effort.____
>>     | >
>>     | >     Deadline is 1 May I think.____
>>     | >
>>     | >     Thanks____
>>     | >
>>     | >     Simon____
>>     | >
>>     | >     __ __
>>     | >
>>     | >
>>     | >     _______________________________________________
>>     | >     ghc-devs mailing list
>>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>
>>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>>     | >
>>     | >
>>     | >
>>     | >
>>     | > _______________________________________________
>>     | > ghc-devs mailing list
>>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>>     | >
>>     _______________________________________________
>>     ghc-devs mailing list
>>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>>
>
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From ekmett at gmail.com  Thu May  1 23:59:29 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Thu, 1 May 2014 19:59:29 -0400
Subject: GHC status report
In-Reply-To: <5362BCDB.2060500@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
Message-ID: <CAJumaK88S6n3ZVQG=SvZO8FWC=OAgUvF02LxPQu=-0LPoxpfvQ@mail.gmail.com>

On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> We should fix this (or at least make it a lot less likely).  Is there a
> ticket?
>

Not yet. I just converted to 7.8.2 the other day (I'd been running the
release candidate) and wanted to duplicate the problem first. I haven't
been writing code on my larger projects since upgrading, so I've yet to
experience the problem again.

A similar issue was happening with parallel rebuilds with -j on a Mac after
^C'ing out of a cabal build, when compiling with -dynamic-too, where it
winds up blaming missing files, but can't generate them That has caused me
to abandon using -j during development. I encountered this one first, and
I'm not sure if these are both just the same error.

If I had to guess part of the problem seems like the logic in cabal and/or
ghc around -dynamic-too treats the .dyn_foo and the .foo files as one
inseparable artifact, when you can actually wind up with one of them and
not the other.

A final dynamic-linking issue that is only tangentially related is that it
seems the dynamic-only code path is a bit broken as well. e.g. shared:
True, executable-dynamic: True in cabal. I've had it complain about about
looking for missing installed .hi files and skip right past the .dyn_hi
files when working on a subsequent package that uses the first one.

The only real relevance of that issue is that I was hoping to use it to cut
my build times and to address the above concerns by not having two
artifacts being produced when the tooling is designed around one, but I
seem forced to build both.

As soon as I have a build break in a way that I can show a decent trace,
I'll put in a ticket.

-Edward


> Cheers,
> Simon
>
>
>  -Edward
>>
>>
>> On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>
>>     | Dynamic linking has been a huge headache in GHC, and it's not
>>     clear that
>>     | it's an overall improvement compared with the static linker.  Now
>> that
>>     | 7.8 is out of the way, it's time to have a conversation about
>>     whether we
>>     | want to do dynamic linking again for 7.10, or revert to static
>>     linking.
>>
>>     I echo this. Dynamic linking has had many un-anticipated costs and
>>     it is still very far from sorted out.  It originally felt like a
>>     Fantastic Idea to give up our own linker and adopt the system
>>     linker, but it now feels to me like a black hole, endlessly sucking
>>     effort and increasing complexity.
>>
>>     My viewpoint is highly un-informed about details; I just watch the
>>     traffic going by.  And of course it does have benefits that
>>     doubtless generate less traffic.
>>
>>     Simon
>>
>>     |
>>     |
>>     |
>>     | >
>>     | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>     | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>> wrote:
>>     | >
>>     | >     As Austin has told us, there's a draft of the *GHC Status
>> Report
>>     | for
>>     | >     the HCAR*, here:____
>>     | >
>>     | > https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>     | >
>>     | >     Have we missed out something  you have been working hard on?
>>  Do
>>     | >     take a moment to add a bullet in an appropriate place (it's a
>>     | >     wiki).  I'd like to be sure that we are giving credit to all
>> the
>>     | >     appropriate people, so please help us fix that too.  GHC is
>>     a team
>>     | >     effort.____
>>     | >
>>     | >     Deadline is 1 May I think.____
>>     | >
>>     | >     Thanks____
>>     | >
>>     | >     Simon____
>>     | >
>>     | >     __ __
>>     | >
>>     | >
>>     | >     _______________________________________________
>>     | >     ghc-devs mailing list
>>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>
>>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>>     | >
>>     | >
>>     | >
>>     | >
>>     | > _______________________________________________
>>     | > ghc-devs mailing list
>>     | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     | > http://www.haskell.org/mailman/listinfo/ghc-devs
>>     | >
>>     _______________________________________________
>>     ghc-devs mailing list
>>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>>
>
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From djsamperi at gmail.com  Fri May  2 00:09:43 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Thu, 1 May 2014 20:09:43 -0400
Subject: GHC status report
In-Reply-To: <5362BC24.9030101@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
Message-ID: <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>

It turns out that the 7.8 update fixed problems that were NOT
fixed by using -fno-ghci-sandbox with earlier versions of ghci,
like 7.6.3, so this flag by itself did not address the issue. I
assumed (perhaps incorrectly) that a full explanation must
include the new dynamic linking support.

With 7.6.3 the problem arises when using FFI and embeded R, which
involves linking to its shared library libR.so. Linking seems to be
successful, but the program crashes when run, with a message
about C stack overflow and/or a segfault. (Note that this does not
happen when the program is compiled using ghc...only ghci has
the problem.)

On the stack space question, embedded R tries to detect when
C stack space is exhausted by inspecting the address of variables
allocated in a function call, using code something like
this (in R src/main/errors.c):

void (R_CheckStack)(void)
{
    int dummy;
    intptr_t usage = R_CStackDir * (R_CStackStart - (uintptr_t)&dummy;
    ...
}

The seg fault happens with ghci 7.6.3 with or without the flag
-fno-ghci-sandbox.
With 7.8.2 the seg fault happens if the flag -fno-ghci-sandbox is
omitted; with the flag everything works fine.

If I understand your last comment correctly linking to libR should
continue to work, even if you revert to static linking of Haskell compiled
code via RTS linker. Since you say this is the way things have always
been, perhaps the real explanation for why 7.8 fixed the issue is that
some bug was fixed along the way...

Note that R is a C library, so the C++ issues that Carter mentions are
not a factor here.

Thanks,
Dominick

On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
> On 01/05/14 14:48, Dominick Samperi wrote:
>>
>> The problem with some graphics libraries used via FFI (and other libraries
>> that are not thread-safe), if I understand the situation correctly, is
>> that ghci
>> forks a thread when it shouldn't, causing some programs to miscalculate
>> the available stack space (because they think there is only one thread).
>
>>
>>
>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>> this problem, and I would not vote for the removal of these features.
>
>
> So I understand how -fno-ghci-sandbox avoids problems with GUI libraries
> that use thread-local state.  But how is dynamic linking involved here?
> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
> "miscalculate the available stack space"? What needs to calculate stack
> space? Why? C stack space?
>
> We can certainly make a smoother experience around -fno-ghci-sandbox for
> using GUI libraries.
>
>
>> It is not clear to me from Simon's original post how linking to all of
>> those C++ libs can continue to work if dynamic linking is removed
>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>> static linking"?
>
>
> When I say "revert to static linking" I mean make GHCi static linked, and
> have it load Haskell code compiled for static linking using the RTS linker
> (like it did in 7.6).  Foreign libraries would still be loaded using the
> system linker, as they always have been.
>
> To be clear, I'm not officially proposing that we drop dynamic linking, but
> I think it's worthwhile exploring the design space again, given that we know
> dynamic linking has been tougher than we expected.
>
> Cheers,
> Simon
>
>
>
>> Thanks,
>> Dominick
>>
>>
>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>> <george.colpitts at gmail.com> wrote:
>>>
>>> To elaborate, in the past, I had a lot of problems using libraries from
>>> the
>>> ghci prompt on the Mac but I haven't tried recently.
>>>
>>> As an example, on the web page for the book the Haskell School of
>>> Expression
>>> it says:
>>>
>>> Note for OS X users: running graphics applications from GHCi is no longer
>>> supported. Instead, one has to compile a graphics program using GHC in
>>> order
>>> to run it (see example/GMIExamples.lhs for an example).
>>>
>>> I had similar problems using the Yale Euterpea music program from ghci.
>>> When
>>> I inquired I was referred to https://ghc.haskell.org/trac/ghc/ticket/4244
>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is
>>> now scheduled for 7.10.1
>>>
>>>
>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>
>>>>
>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>
>>>>>
>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>> 7.8.
>>>>> I think it's worth mentioning the improvements we expect to get from
>>>>> that. The highlights of the release notes do mention it, so maybe that
>>>>> suffices.
>>>>>
>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>> with
>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>> about
>>>>> that though.
>>>>
>>>>
>>>>
>>>> I'd like to understand more about what those problems are.  As a data
>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>> libraries and one gigantic shared library consisting of a ton of
>>>> in-house
>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>> perfectly.  The key to using the static linker is to not use it for C++
>>>> code
>>>> - you want all your external C++ code in shared libraries and load those
>>>> using the system linker.
>>>>
>>>> Dynamic linking has been a huge headache in GHC, and it's not clear that
>>>> it's an overall improvement compared with the static linker.  Now that
>>>> 7.8
>>>> is out of the way, it's time to have a conversation about whether we
>>>> want to
>>>> do dynamic linking again for 7.10, or revert to static linking.  I think
>>>> Austin is going to update
>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then we'll
>>>> see
>>>> where we stand.
>>>>
>>>> Cheers,
>>>> Simon
>>>>
>>>>
>>>>
>>>>>
>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>
>>>>>      As Austin has told us, there's a draft of the *GHC Status Report
>>>>> for
>>>>>      the HCAR*, here:____
>>>>>
>>>>>      https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>
>>>>>
>>>>>      Have we missed out something  you have been working hard on?  Do
>>>>>      take a moment to add a bullet in an appropriate place (it's a
>>>>>      wiki).  I'd like to be sure that we are giving credit to all the
>>>>>      appropriate people, so please help us fix that too.  GHC is a team
>>>>>      effort.____
>>>>>
>>>>>      Deadline is 1 May I think.____
>>>>>
>>>>>      Thanks____
>>>>>
>>>>>      Simon____
>>>>>
>>>>>      __ __
>>>>>
>>>>>
>>>>>      _______________________________________________
>>>>>      ghc-devs mailing list
>>>>>      ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>      http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> ghc-devs mailing list
>>>>> ghc-devs at haskell.org
>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>
>>>
>>>
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>

From djsamperi at gmail.com  Fri May  2 05:57:49 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Fri, 2 May 2014 01:57:49 -0400
Subject: GHC status report
In-Reply-To: <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
Message-ID: <CADUbQ5jNHXQFL0CfYkLR3D0ta+ZC=c1xh81T-ZEL1GWDsjh-jw@mail.gmail.com>

The problems I was seeing with ghci prior to 7.8 are similar to the
ones reported by Edward Kmett above: addresses were mapped
incorrectly. This was compounded by the fact that the
library used was not thread-safe, so there were two issues,
which may explain why -fno-ghci-sandbox did not help.

On Thu, May 1, 2014 at 8:09 PM, Dominick Samperi <djsamperi at gmail.com> wrote:
> It turns out that the 7.8 update fixed problems that were NOT
> fixed by using -fno-ghci-sandbox with earlier versions of ghci,
> like 7.6.3, so this flag by itself did not address the issue. I
> assumed (perhaps incorrectly) that a full explanation must
> include the new dynamic linking support.
>
> With 7.6.3 the problem arises when using FFI and embeded R, which
> involves linking to its shared library libR.so. Linking seems to be
> successful, but the program crashes when run, with a message
> about C stack overflow and/or a segfault. (Note that this does not
> happen when the program is compiled using ghc...only ghci has
> the problem.)
>
> On the stack space question, embedded R tries to detect when
> C stack space is exhausted by inspecting the address of variables
> allocated in a function call, using code something like
> this (in R src/main/errors.c):
>
> void (R_CheckStack)(void)
> {
>     int dummy;
>     intptr_t usage = R_CStackDir * (R_CStackStart - (uintptr_t)&dummy;
>     ...
> }
>
> The seg fault happens with ghci 7.6.3 with or without the flag
> -fno-ghci-sandbox.
> With 7.8.2 the seg fault happens if the flag -fno-ghci-sandbox is
> omitted; with the flag everything works fine.
>
> If I understand your last comment correctly linking to libR should
> continue to work, even if you revert to static linking of Haskell compiled
> code via RTS linker. Since you say this is the way things have always
> been, perhaps the real explanation for why 7.8 fixed the issue is that
> some bug was fixed along the way...
>
> Note that R is a C library, so the C++ issues that Carter mentions are
> not a factor here.
>
> Thanks,
> Dominick
>
> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>
>>> The problem with some graphics libraries used via FFI (and other libraries
>>> that are not thread-safe), if I understand the situation correctly, is
>>> that ghci
>>> forks a thread when it shouldn't, causing some programs to miscalculate
>>> the available stack space (because they think there is only one thread).
>>
>>>
>>>
>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>> this problem, and I would not vote for the removal of these features.
>>
>>
>> So I understand how -fno-ghci-sandbox avoids problems with GUI libraries
>> that use thread-local state.  But how is dynamic linking involved here?
>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>> "miscalculate the available stack space"? What needs to calculate stack
>> space? Why? C stack space?
>>
>> We can certainly make a smoother experience around -fno-ghci-sandbox for
>> using GUI libraries.
>>
>>
>>> It is not clear to me from Simon's original post how linking to all of
>>> those C++ libs can continue to work if dynamic linking is removed
>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>> static linking"?
>>
>>
>> When I say "revert to static linking" I mean make GHCi static linked, and
>> have it load Haskell code compiled for static linking using the RTS linker
>> (like it did in 7.6).  Foreign libraries would still be loaded using the
>> system linker, as they always have been.
>>
>> To be clear, I'm not officially proposing that we drop dynamic linking, but
>> I think it's worthwhile exploring the design space again, given that we know
>> dynamic linking has been tougher than we expected.
>>
>> Cheers,
>> Simon
>>
>>
>>
>>> Thanks,
>>> Dominick
>>>
>>>
>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>> <george.colpitts at gmail.com> wrote:
>>>>
>>>> To elaborate, in the past, I had a lot of problems using libraries from
>>>> the
>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>
>>>> As an example, on the web page for the book the Haskell School of
>>>> Expression
>>>> it says:
>>>>
>>>> Note for OS X users: running graphics applications from GHCi is no longer
>>>> supported. Instead, one has to compile a graphics program using GHC in
>>>> order
>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>
>>>> I had similar problems using the Yale Euterpea music program from ghci.
>>>> When
>>>> I inquired I was referred to https://ghc.haskell.org/trac/ghc/ticket/4244
>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is
>>>> now scheduled for 7.10.1
>>>>
>>>>
>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>
>>>>>
>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>
>>>>>>
>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>> 7.8.
>>>>>> I think it's worth mentioning the improvements we expect to get from
>>>>>> that. The highlights of the release notes do mention it, so maybe that
>>>>>> suffices.
>>>>>>
>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>> with
>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>> about
>>>>>> that though.
>>>>>
>>>>>
>>>>>
>>>>> I'd like to understand more about what those problems are.  As a data
>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>> in-house
>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>> perfectly.  The key to using the static linker is to not use it for C++
>>>>> code
>>>>> - you want all your external C++ code in shared libraries and load those
>>>>> using the system linker.
>>>>>
>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear that
>>>>> it's an overall improvement compared with the static linker.  Now that
>>>>> 7.8
>>>>> is out of the way, it's time to have a conversation about whether we
>>>>> want to
>>>>> do dynamic linking again for 7.10, or revert to static linking.  I think
>>>>> Austin is going to update
>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then we'll
>>>>> see
>>>>> where we stand.
>>>>>
>>>>> Cheers,
>>>>> Simon
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>
>>>>>>      As Austin has told us, there's a draft of the *GHC Status Report
>>>>>> for
>>>>>>      the HCAR*, here:____
>>>>>>
>>>>>>      https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>
>>>>>>
>>>>>>      Have we missed out something  you have been working hard on?  Do
>>>>>>      take a moment to add a bullet in an appropriate place (it's a
>>>>>>      wiki).  I'd like to be sure that we are giving credit to all the
>>>>>>      appropriate people, so please help us fix that too.  GHC is a team
>>>>>>      effort.____
>>>>>>
>>>>>>      Deadline is 1 May I think.____
>>>>>>
>>>>>>      Thanks____
>>>>>>
>>>>>>      Simon____
>>>>>>
>>>>>>      __ __
>>>>>>
>>>>>>
>>>>>>      _______________________________________________
>>>>>>      ghc-devs mailing list
>>>>>>      ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>      http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> ghc-devs mailing list
>>>>>> ghc-devs at haskell.org
>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ghc-devs mailing list
>>>> ghc-devs at haskell.org
>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>
>>

From hvriedel at gmail.com  Fri May  2 09:36:16 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Fri, 02 May 2014 11:36:16 +0200
Subject: Relocating (some of) GHC's core-libraries to github.com/haskell
In-Reply-To: <535F7E9A.90905@gmail.com> (Simon Marlow's message of "Tue, 29
 Apr 2014 11:27:38 +0100")
References: <87lhurp20u.fsf@gnu.org> <535E0E67.9090508@gmail.com>
 <878uqpg8gf.fsf@gmail.com> <535E1F43.6000106@gmail.com>
 <87bnvk8nk9.fsf@gmail.com> <535F7E9A.90905@gmail.com>
Message-ID: <87oazgr08f.fsf@gmail.com>

On 2014-04-29 at 12:27:38 +0200, Simon Marlow wrote:

[...]

>>> I think that's fine.  As Simon points out, we already have lagging
>>> repo functionality in the form of the submodule links, so the repo on
>>> git.haskell.org can be a pure mirror.
>>
>> Just so I get this right, does "pure mirror" here mean that we don't
>> want users to be able to push to the automatically mirrored repo on
>> git.haskell.org at all, but rather the only way to get any commits into
>> the git.haskell.org mirrored repo would be push it via the GitHub repo?
>>
>> (I'd like that, as it would make the set-up easier and hopefully less
>> confusing, as there'd be only a single data-flow path)
>
> Makes sense to me, but how does that interact with your post-commit
> hook that checks for validity of the submodule updates?

(btw, it's actually a pre-receive/update script, as a post-commit hook
runs to late to be able to reject ref-updates)


The submod-referential-check script would still work, as it would check
that at least at the time a push to ghc.git was done, the respective
submodule commits were present at git.haskell.org

I've asked the GitHub admins to disallow force-pushes on the new repos I
created at github.com/haskell/ as a safety measure (they don't support
disallowing branch-deletion though, so there's still a way to force-push
by workarounding via branch deletion+recreation, but I'd trust the users
we give write-access to[1] to not abuse this loophole)

Moreover, I'd configure the sub-repos at git.haskell.org to never prune
unreachable objects automatically as a short-term measure. This would
allow to manually recover any "lost" commits, and make them reachable
again, even if github.com/haskell already forgot about them.

As for the mirroring itself, this may lag a little bit at first, until I
get the scripting better: right now git.haskell.org would poll
github.com every 10 minutes or so for new commits. Later-on that would
be improved by enabling a post-commit webhook on github to notify
git.haskell.org about new commits to reduce the mirroring latency. I
hope this is enough for now.



Also, I'd like to share the automatic mirroring-workflow with other
packages already living at github.com/haskell, such as containers or
bytestring.

Long story short, the workflow for modifying a core-lib package formerly
living at git.haskell.org would be to

 1.) get the commit somehow into the new upstream at github.com[2]

 2.) wait a little bit till the commit gets propagated automatically to
     git.haskell.org

 3.) commit and push the submodule gitlink ref update in ghc.git to
     git.haskell.org



Cheers,
   hvr


 [1]: I've created a 'GHC developers' team in the github.com/haskell org
      some time ago, which mirrors the users who have write access to
      git.haskell.org; I'd simply assign those to the new repos for
      now. So there should be no authorization-regressions.


 [2]: We'll provide a convenient way to redirect pushes to
      git.haskell.org/packages/$PKG to its real writable upstream repo

      I recently learned about Git's

       url.<base>.insteadOf
       url.<base>.pushInsteadOf

      redirection feature, you'd only have to set the redirect rules
      once, and then you could 'git clone --recursive' simply using the
      canonical http://git.haskell.org URLs, but it would instead go to
      github.com for fetch/pushes as instructed. This may be far easier
      and more robust than having sync-all rewriting the pushurls.

      this would also make it easy, to temporarily switch to github.com,
      if git.h.o is down, w/o having to reconfigure all your ghc source
      trees, as those rules are a setting that can live in ~/.gitconfig

From marlowsd at gmail.com  Fri May  2 13:47:39 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 02 May 2014 14:47:39 +0100
Subject: GHC status report
In-Reply-To: <E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
 <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
 <5363981B.7040704@gmail.com> <E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>
Message-ID: <5363A1FB.6070506@gmail.com>

On 02/05/2014 14:28, Edward Kmett wrote:
> Perhaps. We actually tried that originally, but had issues about
> where and how to get cabal to place it. We'd need it to go somewhere
> installed rather than the local build dir lest it not be there when
> we go to use the lib, but IIRC, cabal couldn't/wouldn't tell me where
> it was putting the final installed version and then there is the
> issue of the local in place runs vs. post cabal install runs and
> referencing that dir from subsequent projects. If we want a
> transparent ?cabal install rounded` It isn't clear to me how to get
> there down this path, but it is entirely possible I just missed
> something obvious.
> 
> MPFR/rounded was just an off the cuff example. Another place where
> the dynamic linker really helps is external c++ libraries which
> should now actually get all of their initializers called in the right
> order when launched from ghci.

External C++ libraries work just fine with the statically linked GHCi -
it uses the system linker to load them, and all the initalizers get
called, in the right order, as they should.  So this is where I'm
confused about what the problems actually are - there seems to be this
perception that GHCi didn't work with external C++ code, but as far as I
know it works just fine (indeed we're doing it a lot at Facebook, so
there's at least an existence proof that depending on a non-trivial
amount of external C++ with a statically-linked GHCi can work).

Cheers,
Simon


> 
> 
>> Cheers,
>> Simon
>>
>>> Switching to the system dynamic linker fo ghci seems to have resolved
>>> all of that effortlessly.
>>>
>>> Dan Peebles has been talking to the MPFR folks to see if we can get them
>>> to expose enough information about the 'hidden' allocations they use
>>> that we can make them visible to GHC or have them do what our local fix
>>> does and avoid using the MPFR allocator for their hidden constant cache.
>>>
>>> If they do that then we can actually link to the library like normal
>>> rather than link it in directly, but it isn't clear to me what would
>>> happen even with those hooks if we rolled back to something like the old
>>> custom linker.
>>>
>>> -Edward
>>>
>>>
>>> On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com
>>> <mailto:marlowsd at gmail.com>> wrote:
>>>
>>>     On 01/05/14 15:27, Edward Kmett wrote:
>>>
>>>         Figured I'd make one case for dynamic linking:
>>>
>>>         https://github.com/ekmett/__rounded
>>>         <https://github.com/ekmett/rounded>
>>>
>>>         Dynamic linking is finally enabling us to build a version of MPFR
>>>         bindings for Haskell for scientific/high precision computing
>>>         with 7.8. I
>>>         would really hate to lose it after all of these years trying to
>>>         get it
>>>         work, as I have a rather large edifice being built atop that
>>>         platform.
>>>         We tried and failed due to limitations of the old linker for
>>>         almost 3 years.
>>>
>>>
>>>     I understand the issues with MPFR.  But how is dynamic linking helping?
>>>
>>>
>>>         That said, -dynamic-too seems to cause me all sorts of problems
>>>         elsewhere. ^C'ing out of a build and restarting it will often
>>>         make a .o
>>>         but lose the .dyn_o, leading to GHC + cabal getting confused and
>>>         refusing to build until I clean. This hits me several times a day.
>>>
>>>
>>>     We should fix this (or at least make it a lot less likely).  Is
>>>     there a ticket?
>>>
>>>     Cheers,
>>>     Simon
>>>
>>>
>>>         -Edward
>>>
>>>
>>>         On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>>>         <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>__>
>>>         wrote:
>>>
>>>              | Dynamic linking has been a huge headache in GHC, and it's not
>>>              clear that
>>>              | it's an overall improvement compared with the static
>>>         linker.  Now that
>>>              | 7.8 is out of the way, it's time to have a conversation about
>>>              whether we
>>>              | want to do dynamic linking again for 7.10, or revert to
>>>         static
>>>              linking.
>>>
>>>              I echo this. Dynamic linking has had many un-anticipated
>>>         costs and
>>>              it is still very far from sorted out.  It originally felt
>>>         like a
>>>              Fantastic Idea to give up our own linker and adopt the system
>>>              linker, but it now feels to me like a black hole, endlessly
>>>         sucking
>>>              effort and increasing complexity.
>>>
>>>              My viewpoint is highly un-informed about details; I just
>>>         watch the
>>>              traffic going by.  And of course it does have benefits that
>>>              doubtless generate less traffic.
>>>
>>>              Simon
>>>
>>>              |
>>>              |
>>>              |
>>>              | >
>>>              | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>              | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>
>>>              <mailto:simonpj at microsoft.com
>>>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>>         <mailto:simonpj at microsoft.com>>__>> wrote:
>>>              | >
>>>              | >     As Austin has told us, there's a draft of the *GHC
>>>         Status Report
>>>              | for
>>>              | >     the HCAR*, here:____
>>>              | >
>>>              | >
>>>         https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>>>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>>>              | >
>>>              | >     Have we missed out something  you have been working
>>>         hard on?  Do
>>>              | >     take a moment to add a bullet in an appropriate
>>>         place (it's a
>>>              | >     wiki).  I'd like to be sure that we are giving
>>>         credit to all the
>>>              | >     appropriate people, so please help us fix that too.
>>>           GHC is
>>>              a team
>>>              | >     effort.____
>>>              | >
>>>              | >     Deadline is 1 May I think.____
>>>              | >
>>>              | >     Thanks____
>>>              | >
>>>              | >     Simon____
>>>              | >
>>>              | >     __ __
>>>              | >
>>>              | >
>>>              | >     _________________________________________________
>>>              | >     ghc-devs mailing list
>>>              | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>>              <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>>
>>>
>>>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>>              | >
>>>              | >
>>>              | >
>>>              | >
>>>              | > _________________________________________________
>>>              | > ghc-devs mailing list
>>>              | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>>              | >
>>>              _________________________________________________
>>>              ghc-devs mailing list
>>>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>>
>>>
>>>
>>>

From ekmett at gmail.com  Fri May  2 17:19:49 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Fri, 2 May 2014 13:19:49 -0400
Subject: GHC status report
In-Reply-To: <5363A1FB.6070506@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
 <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
 <5363981B.7040704@gmail.com>
 <E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>
 <5363A1FB.6070506@gmail.com>
Message-ID: <CAJumaK9ybFMiw8jvQ7EWCHv5UVyVUXfN2JXCaDsxbP7dPgxTNQ@mail.gmail.com>

I may have to dig to find an example, but when I last checked it seemed
that c++ libraries would load fine, but there was a problem with static
initializers not getting called, when loading from ghci, so if your c++
library needed them then you'd have problems.

An earlier version of the MPFR hackery used a static initializer to replace
the GHC garbage collection hook for GMP with one that played evil games to
figure out if it was being called from the MPFR constant cache.

That initialized and loaded fine from ghc, but not from ghci. Our static
initializer was never being called, despite the library being loaded.

If your C++ practices there forbid static initializers -- some places do --
that may be why you aren't seeing the issue.

-Edward


On Fri, May 2, 2014 at 9:47 AM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 02/05/2014 14:28, Edward Kmett wrote:
> > Perhaps. We actually tried that originally, but had issues about
> > where and how to get cabal to place it. We'd need it to go somewhere
> > installed rather than the local build dir lest it not be there when
> > we go to use the lib, but IIRC, cabal couldn't/wouldn't tell me where
> > it was putting the final installed version and then there is the
> > issue of the local in place runs vs. post cabal install runs and
> > referencing that dir from subsequent projects. If we want a
> > transparent ?cabal install rounded` It isn't clear to me how to get
> > there down this path, but it is entirely possible I just missed
> > something obvious.
> >
> > MPFR/rounded was just an off the cuff example. Another place where
> > the dynamic linker really helps is external c++ libraries which
> > should now actually get all of their initializers called in the right
> > order when launched from ghci.
>
> External C++ libraries work just fine with the statically linked GHCi -
> it uses the system linker to load them, and all the initalizers get
> called, in the right order, as they should.  So this is where I'm
> confused about what the problems actually are - there seems to be this
> perception that GHCi didn't work with external C++ code, but as far as I
> know it works just fine (indeed we're doing it a lot at Facebook, so
> there's at least an existence proof that depending on a non-trivial
> amount of external C++ with a statically-linked GHCi can work).
>
> Cheers,
> Simon
>
>
> >
> >
> >> Cheers,
> >> Simon
> >>
> >>> Switching to the system dynamic linker fo ghci seems to have resolved
> >>> all of that effortlessly.
> >>>
> >>> Dan Peebles has been talking to the MPFR folks to see if we can get
> them
> >>> to expose enough information about the 'hidden' allocations they use
> >>> that we can make them visible to GHC or have them do what our local fix
> >>> does and avoid using the MPFR allocator for their hidden constant
> cache.
> >>>
> >>> If they do that then we can actually link to the library like normal
> >>> rather than link it in directly, but it isn't clear to me what would
> >>> happen even with those hooks if we rolled back to something like the
> old
> >>> custom linker.
> >>>
> >>> -Edward
> >>>
> >>>
> >>> On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com
> >>> <mailto:marlowsd at gmail.com>> wrote:
> >>>
> >>>     On 01/05/14 15:27, Edward Kmett wrote:
> >>>
> >>>         Figured I'd make one case for dynamic linking:
> >>>
> >>>         https://github.com/ekmett/__rounded
> >>>         <https://github.com/ekmett/rounded>
> >>>
> >>>         Dynamic linking is finally enabling us to build a version of
> MPFR
> >>>         bindings for Haskell for scientific/high precision computing
> >>>         with 7.8. I
> >>>         would really hate to lose it after all of these years trying to
> >>>         get it
> >>>         work, as I have a rather large edifice being built atop that
> >>>         platform.
> >>>         We tried and failed due to limitations of the old linker for
> >>>         almost 3 years.
> >>>
> >>>
> >>>     I understand the issues with MPFR.  But how is dynamic linking
> helping?
> >>>
> >>>
> >>>         That said, -dynamic-too seems to cause me all sorts of problems
> >>>         elsewhere. ^C'ing out of a build and restarting it will often
> >>>         make a .o
> >>>         but lose the .dyn_o, leading to GHC + cabal getting confused
> and
> >>>         refusing to build until I clean. This hits me several times a
> day.
> >>>
> >>>
> >>>     We should fix this (or at least make it a lot less likely).  Is
> >>>     there a ticket?
> >>>
> >>>     Cheers,
> >>>     Simon
> >>>
> >>>
> >>>         -Edward
> >>>
> >>>
> >>>         On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
> >>>         <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
> >>>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com
> >>__>
> >>>         wrote:
> >>>
> >>>              | Dynamic linking has been a huge headache in GHC, and
> it's not
> >>>              clear that
> >>>              | it's an overall improvement compared with the static
> >>>         linker.  Now that
> >>>              | 7.8 is out of the way, it's time to have a conversation
> about
> >>>              whether we
> >>>              | want to do dynamic linking again for 7.10, or revert to
> >>>         static
> >>>              linking.
> >>>
> >>>              I echo this. Dynamic linking has had many un-anticipated
> >>>         costs and
> >>>              it is still very far from sorted out.  It originally felt
> >>>         like a
> >>>              Fantastic Idea to give up our own linker and adopt the
> system
> >>>              linker, but it now feels to me like a black hole,
> endlessly
> >>>         sucking
> >>>              effort and increasing complexity.
> >>>
> >>>              My viewpoint is highly un-informed about details; I just
> >>>         watch the
> >>>              traffic going by.  And of course it does have benefits
> that
> >>>              doubtless generate less traffic.
> >>>
> >>>              Simon
> >>>
> >>>              |
> >>>              |
> >>>              |
> >>>              | >
> >>>              | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
> >>>              | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
> >>>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>
> >>>              <mailto:simonpj at microsoft.com
> >>>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
> >>>         <mailto:simonpj at microsoft.com>>__>> wrote:
> >>>              | >
> >>>              | >     As Austin has told us, there's a draft of the *GHC
> >>>         Status Report
> >>>              | for
> >>>              | >     the HCAR*, here:____
> >>>              | >
> >>>              | >
> >>>         https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
> >>>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
> >>>              | >
> >>>              | >     Have we missed out something  you have been
> working
> >>>         hard on?  Do
> >>>              | >     take a moment to add a bullet in an appropriate
> >>>         place (it's a
> >>>              | >     wiki).  I'd like to be sure that we are giving
> >>>         credit to all the
> >>>              | >     appropriate people, so please help us fix that
> too.
> >>>           GHC is
> >>>              a team
> >>>              | >     effort.____
> >>>              | >
> >>>              | >     Deadline is 1 May I think.____
> >>>              | >
> >>>              | >     Thanks____
> >>>              | >
> >>>              | >     Simon____
> >>>              | >
> >>>              | >     __ __
> >>>              | >
> >>>              | >
> >>>              | >     _________________________________________________
> >>>              | >     ghc-devs mailing list
> >>>              | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
> >>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
> >>>              <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org
> >
> >>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>>
> >>>
> >>>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
> >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
> >>>              | >
> >>>              | >
> >>>              | >
> >>>              | >
> >>>              | > _________________________________________________
> >>>              | > ghc-devs mailing list
> >>>              | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
> >>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
> >>>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
> >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
> >>>              | >
> >>>              _________________________________________________
> >>>              ghc-devs mailing list
> >>>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
> >>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
> >>>         http://www.haskell.org/__mailman/listinfo/ghc-devs
> >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
> >>>
> >>>
> >>>
> >>>
>
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From kazu at iij.ad.jp  Fri May  2 12:03:21 2014
From: kazu at iij.ad.jp (Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=))
Date: Fri, 02 May 2014 21:03:21 +0900 (JST)
Subject: validate on Mavericks
In-Reply-To: <9FF77456-D0C1-4BED-8977-DC0C0601A06D@cis.upenn.edu>
References: <20140501.163206.1840638861309624749.kazu@iij.ad.jp>
 <9FF77456-D0C1-4BED-8977-DC0C0601A06D@cis.upenn.edu>
Message-ID: <20140502.210321.582085594209253328.kazu@iij.ad.jp>

Richard,

> I've posted this problem as #9047
> (https://ghc.haskell.org/trac/ghc/ticket/9047), but I have no
> information to help you -- sorry!

Thanks anyway.

--Kazu

From djsamperi at gmail.com  Fri May  2 17:18:20 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Fri, 2 May 2014 13:18:20 -0400
Subject: GHC status report
In-Reply-To: <5363990D.5080200@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
Message-ID: <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>

I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
section of mk/build.mk (with BuildFlavour = quick), and set
DYNAMIC_GHC_PROGRAMS=NO
in my environment before running configure (just to be sure!). Near
the end of the build
I saw some messages like "Warning: vectorization failure," but the
build completed.

The status at the end of configure doesn't say that dynamic linking
via RTS has been
turned off, and I don't know how to check that this is so.
Nevertheless, I checked
the linking issue and it is NOT fixed with this build, so
DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
reported by me and others.


On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
> On 02/05/2014 01:09, Dominick Samperi wrote:
>
>> If I understand your last comment correctly linking to libR should
>> continue to work, even if you revert to static linking of Haskell compiled
>> code via RTS linker. Since you say this is the way things have always
>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>> some bug was fixed along the way...
>
>
> Indeed.  To know for sure we would have to test 7.8 with
> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>
> Cheers,
> Simon
>
>
>
>> Note that R is a C library, so the C++ issues that Carter mentions are
>> not a factor here.
>>
>> Thanks,
>> Dominick
>>
>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>
>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>
>>>>
>>>> The problem with some graphics libraries used via FFI (and other
>>>> libraries
>>>> that are not thread-safe), if I understand the situation correctly, is
>>>> that ghci
>>>> forks a thread when it shouldn't, causing some programs to miscalculate
>>>> the available stack space (because they think there is only one thread).
>>>
>>>
>>>>
>>>>
>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>> this problem, and I would not vote for the removal of these features.
>>>
>>>
>>>
>>> So I understand how -fno-ghci-sandbox avoids problems with GUI libraries
>>> that use thread-local state.  But how is dynamic linking involved here?
>>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>>> "miscalculate the available stack space"? What needs to calculate stack
>>> space? Why? C stack space?
>>>
>>> We can certainly make a smoother experience around -fno-ghci-sandbox for
>>> using GUI libraries.
>>>
>>>
>>>> It is not clear to me from Simon's original post how linking to all of
>>>> those C++ libs can continue to work if dynamic linking is removed
>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>> static linking"?
>>>
>>>
>>>
>>> When I say "revert to static linking" I mean make GHCi static linked, and
>>> have it load Haskell code compiled for static linking using the RTS
>>> linker
>>> (like it did in 7.6).  Foreign libraries would still be loaded using the
>>> system linker, as they always have been.
>>>
>>> To be clear, I'm not officially proposing that we drop dynamic linking,
>>> but
>>> I think it's worthwhile exploring the design space again, given that we
>>> know
>>> dynamic linking has been tougher than we expected.
>>>
>>> Cheers,
>>> Simon
>>>
>>>
>>>
>>>> Thanks,
>>>> Dominick
>>>>
>>>>
>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>> <george.colpitts at gmail.com> wrote:
>>>>>
>>>>>
>>>>> To elaborate, in the past, I had a lot of problems using libraries from
>>>>> the
>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>
>>>>> As an example, on the web page for the book the Haskell School of
>>>>> Expression
>>>>> it says:
>>>>>
>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>> longer
>>>>> supported. Instead, one has to compile a graphics program using GHC in
>>>>> order
>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>
>>>>> I had similar problems using the Yale Euterpea music program from ghci.
>>>>> When
>>>>> I inquired I was referred to
>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter
>>>>> is
>>>>> now scheduled for 7.10.1
>>>>>
>>>>>
>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>> wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>>> 7.8.
>>>>>>> I think it's worth mentioning the improvements we expect to get from
>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>> that
>>>>>>> suffices.
>>>>>>>
>>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>>> with
>>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>>> about
>>>>>>> that though.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> I'd like to understand more about what those problems are.  As a data
>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>> in-house
>>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>>> perfectly.  The key to using the static linker is to not use it for
>>>>>> C++
>>>>>> code
>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>> those
>>>>>> using the system linker.
>>>>>>
>>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear
>>>>>> that
>>>>>> it's an overall improvement compared with the static linker.  Now that
>>>>>> 7.8
>>>>>> is out of the way, it's time to have a conversation about whether we
>>>>>> want to
>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>> think
>>>>>> Austin is going to update
>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>> we'll
>>>>>> see
>>>>>> where we stand.
>>>>>>
>>>>>> Cheers,
>>>>>> Simon
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>
>>>>>>>       As Austin has told us, there's a draft of the *GHC Status
>>>>>>> Report
>>>>>>> for
>>>>>>>       the HCAR*, here:____
>>>>>>>
>>>>>>>       https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>
>>>>>>>
>>>>>>>       Have we missed out something  you have been working hard on?
>>>>>>> Do
>>>>>>>       take a moment to add a bullet in an appropriate place (it's a
>>>>>>>       wiki).  I'd like to be sure that we are giving credit to all
>>>>>>> the
>>>>>>>       appropriate people, so please help us fix that too.  GHC is a
>>>>>>> team
>>>>>>>       effort.____
>>>>>>>
>>>>>>>       Deadline is 1 May I think.____
>>>>>>>
>>>>>>>       Thanks____
>>>>>>>
>>>>>>>       Simon____
>>>>>>>
>>>>>>>       __ __
>>>>>>>
>>>>>>>
>>>>>>>       _______________________________________________
>>>>>>>       ghc-devs mailing list
>>>>>>>       ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>       http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> ghc-devs mailing list
>>>>>>> ghc-devs at haskell.org
>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> ghc-devs mailing list
>>>>> ghc-devs at haskell.org
>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>
>>>
>

From ekmett at gmail.com  Fri May  2 13:28:52 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Fri, 2 May 2014 09:28:52 -0400
Subject: GHC status report
In-Reply-To: <5363981B.7040704@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
 <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
 <5363981B.7040704@gmail.com>
Message-ID: <E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>



> On May 2, 2014, at 9:05 AM, Simon Marlow <marlowsd at gmail.com> wrote:
> 
>> On 02/05/2014 00:46, Edward Kmett wrote:
>> With the old custom linker we weren't able to get our custom MPFR linked
>> in properly on all platforms for use in ghci.
>> 
>> On Macs we ran into some rather interesting problems. We could get it to
>> work for actual executables, but ghci would segfault with stuff resolved
>> to clearly wrong addresses. If I recall correctly it may have been some
>> kind of MachO symbol type that wasn't being resolved properly by the
>> custom GHC linker, perhaps? We chased after it off and on for a long
>> time to no avail.
>> 
>> It was complicated a great deal by having to build their library and
>> merge it directly into ours, because we couldn't use system MPFR, due to
>> the issues with the GHC garbage collector hooks into GMP.
> 
> I think this is the whole problem.  Normally you would use an external dynamically-linked MPFR, but because you need custom changes to it, you have a local version of it which needs to get linked with your Haskell code.  Presumably you have to arrange to build it with -fPIC somehow?
> 
> If you have C/C++ code in the same library as your Haskell code, then dynamic linking will work better (at least on OS X, where they tend to change the linking semantics more often than ELF, and we have to duplicate that in our linker).  This is a good point, but rather than try to fix that I would instead look at whether you could build your custom MPFR as a shared library, which should work fine regardless of whether GHCi is dynamically linked or not.  The only issue should be passing the right -rpath so that executables can find your custom MPFR, which is something we already do for dynamic linking.


Perhaps. We actually tried that originally, but had issues about where and how to get cabal to place it. We'd need it to go somewhere installed rather than the local build dir lest it not be there when we go to use the lib, but IIRC, cabal couldn't/wouldn't tell me where it was putting the final installed version and then there is the issue of the local in place runs vs. post cabal install runs and referencing that dir from subsequent projects. If we want a transparent ?cabal install rounded` It isn't clear to me how to get there down this path, but it is entirely possible I just missed something obvious.

MPFR/rounded was just an off the cuff example. Another place where the dynamic linker really helps is external c++ libraries which should now actually get all of their initializers called in the right order when launched from ghci.


> Cheers,
> Simon
> 
>> Switching to the system dynamic linker fo ghci seems to have resolved
>> all of that effortlessly.
>> 
>> Dan Peebles has been talking to the MPFR folks to see if we can get them
>> to expose enough information about the 'hidden' allocations they use
>> that we can make them visible to GHC or have them do what our local fix
>> does and avoid using the MPFR allocator for their hidden constant cache.
>> 
>> If they do that then we can actually link to the library like normal
>> rather than link it in directly, but it isn't clear to me what would
>> happen even with those hooks if we rolled back to something like the old
>> custom linker.
>> 
>> -Edward
>> 
>> 
>> On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com
>> <mailto:marlowsd at gmail.com>> wrote:
>> 
>>    On 01/05/14 15:27, Edward Kmett wrote:
>> 
>>        Figured I'd make one case for dynamic linking:
>> 
>>        https://github.com/ekmett/__rounded
>>        <https://github.com/ekmett/rounded>
>> 
>>        Dynamic linking is finally enabling us to build a version of MPFR
>>        bindings for Haskell for scientific/high precision computing
>>        with 7.8. I
>>        would really hate to lose it after all of these years trying to
>>        get it
>>        work, as I have a rather large edifice being built atop that
>>        platform.
>>        We tried and failed due to limitations of the old linker for
>>        almost 3 years.
>> 
>> 
>>    I understand the issues with MPFR.  But how is dynamic linking helping?
>> 
>> 
>>        That said, -dynamic-too seems to cause me all sorts of problems
>>        elsewhere. ^C'ing out of a build and restarting it will often
>>        make a .o
>>        but lose the .dyn_o, leading to GHC + cabal getting confused and
>>        refusing to build until I clean. This hits me several times a day.
>> 
>> 
>>    We should fix this (or at least make it a lot less likely).  Is
>>    there a ticket?
>> 
>>    Cheers,
>>    Simon
>> 
>> 
>>        -Edward
>> 
>> 
>>        On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>>        <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>        <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>__>
>>        wrote:
>> 
>>             | Dynamic linking has been a huge headache in GHC, and it's not
>>             clear that
>>             | it's an overall improvement compared with the static
>>        linker.  Now that
>>             | 7.8 is out of the way, it's time to have a conversation about
>>             whether we
>>             | want to do dynamic linking again for 7.10, or revert to
>>        static
>>             linking.
>> 
>>             I echo this. Dynamic linking has had many un-anticipated
>>        costs and
>>             it is still very far from sorted out.  It originally felt
>>        like a
>>             Fantastic Idea to give up our own linker and adopt the system
>>             linker, but it now feels to me like a black hole, endlessly
>>        sucking
>>             effort and increasing complexity.
>> 
>>             My viewpoint is highly un-informed about details; I just
>>        watch the
>>             traffic going by.  And of course it does have benefits that
>>             doubtless generate less traffic.
>> 
>>             Simon
>> 
>>             |
>>             |
>>             |
>>             | >
>>             | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>             | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>        <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>
>>             <mailto:simonpj at microsoft.com
>>        <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>        <mailto:simonpj at microsoft.com>>__>> wrote:
>>             | >
>>             | >     As Austin has told us, there's a draft of the *GHC
>>        Status Report
>>             | for
>>             | >     the HCAR*, here:____
>>             | >
>>             | >
>>        https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>>        <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>>             | >
>>             | >     Have we missed out something  you have been working
>>        hard on?  Do
>>             | >     take a moment to add a bullet in an appropriate
>>        place (it's a
>>             | >     wiki).  I'd like to be sure that we are giving
>>        credit to all the
>>             | >     appropriate people, so please help us fix that too.
>>          GHC is
>>             a team
>>             | >     effort.____
>>             | >
>>             | >     Deadline is 1 May I think.____
>>             | >
>>             | >     Thanks____
>>             | >
>>             | >     Simon____
>>             | >
>>             | >     __ __
>>             | >
>>             | >
>>             | >     _________________________________________________
>>             | >     ghc-devs mailing list
>>             | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>        <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>             <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>        <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>>
>> 
>>             | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>>        <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>             | >
>>             | >
>>             | >
>>             | >
>>             | > _________________________________________________
>>             | > ghc-devs mailing list
>>             | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>        <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>             | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>>        <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>             | >
>>             _________________________________________________
>>             ghc-devs mailing list
>>        ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>        <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>        http://www.haskell.org/__mailman/listinfo/ghc-devs
>>        <http://www.haskell.org/mailman/listinfo/ghc-devs>
>> 
>> 
>> 
>> 

From bos at serpentine.com  Fri May  2 19:17:39 2014
From: bos at serpentine.com (Bryan O'Sullivan)
Date: Fri, 2 May 2014 12:17:39 -0700
Subject: GHC status report
In-Reply-To: <CAJumaK9ybFMiw8jvQ7EWCHv5UVyVUXfN2JXCaDsxbP7dPgxTNQ@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
 <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
 <5363981B.7040704@gmail.com>
 <E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>
 <5363A1FB.6070506@gmail.com>
 <CAJumaK9ybFMiw8jvQ7EWCHv5UVyVUXfN2JXCaDsxbP7dPgxTNQ@mail.gmail.com>
Message-ID: <CACw0niLmfNRm4R3uN_fhet_e=wXi0z07nwnT=kOP+6e9_YwDgA@mail.gmail.com>

On Fri, May 2, 2014 at 10:19 AM, Edward Kmett <ekmett at gmail.com> wrote:

> I may have to dig to find an example, but when I last checked it seemed
> that c++ libraries would load fine, but there was a problem with static
> initializers not getting called, when loading from ghci, so if your c++
> library needed them then you'd have problems.
>

This has been a longstanding problem, but was reported closed in
https://ghc.haskell.org/trac/ghc/ticket/5435
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From simonpj at microsoft.com  Fri May  2 08:45:32 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Fri, 2 May 2014 08:45:32 +0000
Subject: Unexpected failure to inline, even with pragma
In-Reply-To: <E7F535B24A47D747A07D46C0AA82D43D1C80298B@EXMBX21.ad.utwente.nl>
References: <E7F535B24A47D747A07D46C0AA82D43D1C8028C9@EXMBX21.ad.utwente.nl>
 <1398953652.2600.20.camel@kirk>
 <E7F535B24A47D747A07D46C0AA82D43D1C80298B@EXMBX21.ad.utwente.nl>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0A5AAFFB@DB3PRD3001MB020.064d.mgd.msft.net>

| Is -O required for optimization across module bounds?

Yes, without -O GHC doesn?t put inlinings into interface files, so an importing module can't see them.  Use -fno-omit-interface-pragmas to tell GHC to put the stuff in the interface file regardless.

| Also, since I really want a certain level of inlining for a plugin I'm
| working on; is there a way to force (from the plugin, i.e. using the
| API) to force inlining of a term at its call-site?

Yes, use the magic function 'inline'.  http://www.haskell.org/ghc/docs/7.8.2/html/libraries/base-4.7.0.0/GHC-Exts.html#v%3Ainline
(But I don?t know how much people have exercised this recently, and I think it's a bit fragile because it vanishes after a single inlining.)

| Alternatively
| (weaker), can I force - from a compiler plugin - the inliner to behave
| as if -O was set even if it wasn't?

Well, you could invoke the simplifier from the plugin, setting the DynFlags to -O first.  But I don?t think the plugin can side-effect the DynFlags for downstream passes.

Simon


From marlowsd at gmail.com  Fri May  2 19:44:35 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 02 May 2014 20:44:35 +0100
Subject: GHC status report
In-Reply-To: <CAJumaK9ybFMiw8jvQ7EWCHv5UVyVUXfN2JXCaDsxbP7dPgxTNQ@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>	<CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>	<5362BCDB.2060500@gmail.com>	<CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>	<5363981B.7040704@gmail.com>	<E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>	<5363A1FB.6070506@gmail.com>
 <CAJumaK9ybFMiw8jvQ7EWCHv5UVyVUXfN2JXCaDsxbP7dPgxTNQ@mail.gmail.com>
Message-ID: <5363F5A3.9080009@gmail.com>

On 02/05/14 18:19, Edward Kmett wrote:
> I may have to dig to find an example, but when I last checked it seemed
> that c++ libraries would load fine, but there was a problem with static
> initializers not getting called, when loading from ghci, so if your c++
> library needed them then you'd have problems.

I think we're getting confused here.  External C++ libraries are, and 
always have been, loaded by the system linker, regardless of whether 
GHCi itself is dynamically linked.  So there's no difference in 7.8 with 
respect to how external C++ code is loaded.

However, if you link the C++ code into the same library as the Haskell 
code as you're doing with MPFR, then of course there is a difference 
(let's call that *internal* C++ code, for want of a better name).  I 
think that's a rare case (I understand why you need to do it), and most 
people should be linking their C++ code via separate shared libraries.

> An earlier version of the MPFR hackery used a static initializer to
> replace the GHC garbage collection hook for GMP with one that played
> evil games to figure out if it was being called from the MPFR constant
> cache.
>
> That initialized and loaded fine from ghc, but not from ghci. Our static
> initializer was never being called, despite the library being loaded.
>
> If your C++ practices there forbid static initializers -- some places do
> -- that may be why you aren't seeing the issue.

Absolutely not, we're drowning in static initialisers :)

Cheers,
Simon


> -Edward
>
>
> On Fri, May 2, 2014 at 9:47 AM, Simon Marlow <marlowsd at gmail.com
> <mailto:marlowsd at gmail.com>> wrote:
>
>     On 02/05/2014 14:28, Edward Kmett wrote:
>      > Perhaps. We actually tried that originally, but had issues about
>      > where and how to get cabal to place it. We'd need it to go somewhere
>      > installed rather than the local build dir lest it not be there when
>      > we go to use the lib, but IIRC, cabal couldn't/wouldn't tell me where
>      > it was putting the final installed version and then there is the
>      > issue of the local in place runs vs. post cabal install runs and
>      > referencing that dir from subsequent projects. If we want a
>      > transparent ?cabal install rounded` It isn't clear to me how to get
>      > there down this path, but it is entirely possible I just missed
>      > something obvious.
>      >
>      > MPFR/rounded was just an off the cuff example. Another place where
>      > the dynamic linker really helps is external c++ libraries which
>      > should now actually get all of their initializers called in the right
>      > order when launched from ghci.
>
>     External C++ libraries work just fine with the statically linked GHCi -
>     it uses the system linker to load them, and all the initalizers get
>     called, in the right order, as they should.  So this is where I'm
>     confused about what the problems actually are - there seems to be this
>     perception that GHCi didn't work with external C++ code, but as far as I
>     know it works just fine (indeed we're doing it a lot at Facebook, so
>     there's at least an existence proof that depending on a non-trivial
>     amount of external C++ with a statically-linked GHCi can work).
>
>     Cheers,
>     Simon
>
>
>      >
>      >
>      >> Cheers,
>      >> Simon
>      >>
>      >>> Switching to the system dynamic linker fo ghci seems to have
>     resolved
>      >>> all of that effortlessly.
>      >>>
>      >>> Dan Peebles has been talking to the MPFR folks to see if we can
>     get them
>      >>> to expose enough information about the 'hidden' allocations
>     they use
>      >>> that we can make them visible to GHC or have them do what our
>     local fix
>      >>> does and avoid using the MPFR allocator for their hidden
>     constant cache.
>      >>>
>      >>> If they do that then we can actually link to the library like
>     normal
>      >>> rather than link it in directly, but it isn't clear to me what
>     would
>      >>> happen even with those hooks if we rolled back to something
>     like the old
>      >>> custom linker.
>      >>>
>      >>> -Edward
>      >>>
>      >>>
>      >>> On Thu, May 1, 2014 at 5:30 PM, Simon Marlow
>     <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>      >>> <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>      >>>
>      >>>     On 01/05/14 15:27, Edward Kmett wrote:
>      >>>
>      >>>         Figured I'd make one case for dynamic linking:
>      >>>
>      >>> https://github.com/ekmett/__rounded
>      >>>         <https://github.com/ekmett/rounded>
>      >>>
>      >>>         Dynamic linking is finally enabling us to build a
>     version of MPFR
>      >>>         bindings for Haskell for scientific/high precision
>     computing
>      >>>         with 7.8. I
>      >>>         would really hate to lose it after all of these years
>     trying to
>      >>>         get it
>      >>>         work, as I have a rather large edifice being built atop
>     that
>      >>>         platform.
>      >>>         We tried and failed due to limitations of the old
>     linker for
>      >>>         almost 3 years.
>      >>>
>      >>>
>      >>>     I understand the issues with MPFR.  But how is dynamic
>     linking helping?
>      >>>
>      >>>
>      >>>         That said, -dynamic-too seems to cause me all sorts of
>     problems
>      >>>         elsewhere. ^C'ing out of a build and restarting it will
>     often
>      >>>         make a .o
>      >>>         but lose the .dyn_o, leading to GHC + cabal getting
>     confused and
>      >>>         refusing to build until I clean. This hits me several
>     times a day.
>      >>>
>      >>>
>      >>>     We should fix this (or at least make it a lot less likely).  Is
>      >>>     there a ticket?
>      >>>
>      >>>     Cheers,
>      >>>     Simon
>      >>>
>      >>>
>      >>>         -Edward
>      >>>
>      >>>
>      >>>         On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>      >>>         <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>
>      >>>         <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>>>__>
>      >>>         wrote:
>      >>>
>      >>>              | Dynamic linking has been a huge headache in GHC,
>     and it's not
>      >>>              clear that
>      >>>              | it's an overall improvement compared with the static
>      >>>         linker.  Now that
>      >>>              | 7.8 is out of the way, it's time to have a
>     conversation about
>      >>>              whether we
>      >>>              | want to do dynamic linking again for 7.10, or
>     revert to
>      >>>         static
>      >>>              linking.
>      >>>
>      >>>              I echo this. Dynamic linking has had many
>     un-anticipated
>      >>>         costs and
>      >>>              it is still very far from sorted out.  It
>     originally felt
>      >>>         like a
>      >>>              Fantastic Idea to give up our own linker and adopt
>     the system
>      >>>              linker, but it now feels to me like a black hole,
>     endlessly
>      >>>         sucking
>      >>>              effort and increasing complexity.
>      >>>
>      >>>              My viewpoint is highly un-informed about details;
>     I just
>      >>>         watch the
>      >>>              traffic going by.  And of course it does have
>     benefits that
>      >>>              doubtless generate less traffic.
>      >>>
>      >>>              Simon
>      >>>
>      >>>              |
>      >>>              |
>      >>>              |
>      >>>              | >
>      >>>              | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton
>     Jones
>      >>>              | > <simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>>
>      >>>         <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>>>
>      >>>              <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>
>      >>>         <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>> <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>
>      >>>         <mailto:simonpj at microsoft.com
>     <mailto:simonpj at microsoft.com>>>__>> wrote:
>      >>>              | >
>      >>>              | >     As Austin has told us, there's a draft of
>     the *GHC
>      >>>         Status Report
>      >>>              | for
>      >>>              | >     the HCAR*, here:____
>      >>>              | >
>      >>>              | >
>      >>> https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>      >>>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>      >>>              | >
>      >>>              | >     Have we missed out something  you have
>     been working
>      >>>         hard on?  Do
>      >>>              | >     take a moment to add a bullet in an
>     appropriate
>      >>>         place (it's a
>      >>>              | >     wiki).  I'd like to be sure that we are giving
>      >>>         credit to all the
>      >>>              | >     appropriate people, so please help us fix
>     that too.
>      >>>           GHC is
>      >>>              a team
>      >>>              | >     effort.____
>      >>>              | >
>      >>>              | >     Deadline is 1 May I think.____
>      >>>              | >
>      >>>              | >     Thanks____
>      >>>              | >
>      >>>              | >     Simon____
>      >>>              | >
>      >>>              | >     __ __
>      >>>              | >
>      >>>              | >
>      >>>              | >
>     _________________________________________________
>      >>>              | >     ghc-devs mailing list
>      >>>              | > ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>
>      >>>         <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>>
>      >>>              <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>
>      >>>         <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>>>
>      >>>
>      >>>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>      >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>      >>>              | >
>      >>>              | >
>      >>>              | >
>      >>>              | >
>      >>>              | > _________________________________________________
>      >>>              | > ghc-devs mailing list
>      >>>              | > ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>
>      >>>         <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>>
>      >>>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>      >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>      >>>              | >
>      >>>              _________________________________________________
>      >>>              ghc-devs mailing list
>      >>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>      >>>         <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>     <mailto:ghc-devs at haskell.org>>>
>      >>> http://www.haskell.org/__mailman/listinfo/ghc-devs
>      >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>      >>>
>      >>>
>      >>>
>      >>>
>
>


From marlowsd at gmail.com  Fri May  2 19:45:41 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 02 May 2014 20:45:41 +0100
Subject: GHC status report
In-Reply-To: <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>	<CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>	<5362BC24.9030101@gmail.com>	<CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>	<5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
Message-ID: <5363F5E5.6040004@gmail.com>

Can you give me a quick summary of how to reproduce the problem? (not 
including the GHC build steps)

Cheers,
Simon

On 02/05/14 18:18, Dominick Samperi wrote:
> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
> section of mk/build.mk (with BuildFlavour = quick), and set
> DYNAMIC_GHC_PROGRAMS=NO
> in my environment before running configure (just to be sure!). Near
> the end of the build
> I saw some messages like "Warning: vectorization failure," but the
> build completed.
>
> The status at the end of configure doesn't say that dynamic linking
> via RTS has been
> turned off, and I don't know how to check that this is so.
> Nevertheless, I checked
> the linking issue and it is NOT fixed with this build, so
> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
> reported by me and others.
>
>
> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>
>>> If I understand your last comment correctly linking to libR should
>>> continue to work, even if you revert to static linking of Haskell compiled
>>> code via RTS linker. Since you say this is the way things have always
>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>>> some bug was fixed along the way...
>>
>>
>> Indeed.  To know for sure we would have to test 7.8 with
>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>>
>> Cheers,
>> Simon
>>
>>
>>
>>> Note that R is a C library, so the C++ issues that Carter mentions are
>>> not a factor here.
>>>
>>> Thanks,
>>> Dominick
>>>
>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>
>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>>
>>>>>
>>>>> The problem with some graphics libraries used via FFI (and other
>>>>> libraries
>>>>> that are not thread-safe), if I understand the situation correctly, is
>>>>> that ghci
>>>>> forks a thread when it shouldn't, causing some programs to miscalculate
>>>>> the available stack space (because they think there is only one thread).
>>>>
>>>>
>>>>>
>>>>>
>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>>> this problem, and I would not vote for the removal of these features.
>>>>
>>>>
>>>>
>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI libraries
>>>> that use thread-local state.  But how is dynamic linking involved here?
>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>>>> "miscalculate the available stack space"? What needs to calculate stack
>>>> space? Why? C stack space?
>>>>
>>>> We can certainly make a smoother experience around -fno-ghci-sandbox for
>>>> using GUI libraries.
>>>>
>>>>
>>>>> It is not clear to me from Simon's original post how linking to all of
>>>>> those C++ libs can continue to work if dynamic linking is removed
>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>>> static linking"?
>>>>
>>>>
>>>>
>>>> When I say "revert to static linking" I mean make GHCi static linked, and
>>>> have it load Haskell code compiled for static linking using the RTS
>>>> linker
>>>> (like it did in 7.6).  Foreign libraries would still be loaded using the
>>>> system linker, as they always have been.
>>>>
>>>> To be clear, I'm not officially proposing that we drop dynamic linking,
>>>> but
>>>> I think it's worthwhile exploring the design space again, given that we
>>>> know
>>>> dynamic linking has been tougher than we expected.
>>>>
>>>> Cheers,
>>>> Simon
>>>>
>>>>
>>>>
>>>>> Thanks,
>>>>> Dominick
>>>>>
>>>>>
>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>>> <george.colpitts at gmail.com> wrote:
>>>>>>
>>>>>>
>>>>>> To elaborate, in the past, I had a lot of problems using libraries from
>>>>>> the
>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>>
>>>>>> As an example, on the web page for the book the Haskell School of
>>>>>> Expression
>>>>>> it says:
>>>>>>
>>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>>> longer
>>>>>> supported. Instead, one has to compile a graphics program using GHC in
>>>>>> order
>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>>
>>>>>> I had similar problems using the Yale Euterpea music program from ghci.
>>>>>> When
>>>>>> I inquired I was referred to
>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter
>>>>>> is
>>>>>> now scheduled for 7.10.1
>>>>>>
>>>>>>
>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>> wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>>>> 7.8.
>>>>>>>> I think it's worth mentioning the improvements we expect to get from
>>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>>> that
>>>>>>>> suffices.
>>>>>>>>
>>>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>>>> with
>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>>>> about
>>>>>>>> that though.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> I'd like to understand more about what those problems are.  As a data
>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>>> in-house
>>>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>>>> perfectly.  The key to using the static linker is to not use it for
>>>>>>> C++
>>>>>>> code
>>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>>> those
>>>>>>> using the system linker.
>>>>>>>
>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear
>>>>>>> that
>>>>>>> it's an overall improvement compared with the static linker.  Now that
>>>>>>> 7.8
>>>>>>> is out of the way, it's time to have a conversation about whether we
>>>>>>> want to
>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>>> think
>>>>>>> Austin is going to update
>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>>> we'll
>>>>>>> see
>>>>>>> where we stand.
>>>>>>>
>>>>>>> Cheers,
>>>>>>> Simon
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>>
>>>>>>>>        As Austin has told us, there's a draft of the *GHC Status
>>>>>>>> Report
>>>>>>>> for
>>>>>>>>        the HCAR*, here:____
>>>>>>>>
>>>>>>>>        https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>>
>>>>>>>>
>>>>>>>>        Have we missed out something  you have been working hard on?
>>>>>>>> Do
>>>>>>>>        take a moment to add a bullet in an appropriate place (it's a
>>>>>>>>        wiki).  I'd like to be sure that we are giving credit to all
>>>>>>>> the
>>>>>>>>        appropriate people, so please help us fix that too.  GHC is a
>>>>>>>> team
>>>>>>>>        effort.____
>>>>>>>>
>>>>>>>>        Deadline is 1 May I think.____
>>>>>>>>
>>>>>>>>        Thanks____
>>>>>>>>
>>>>>>>>        Simon____
>>>>>>>>
>>>>>>>>        __ __
>>>>>>>>
>>>>>>>>
>>>>>>>>        _______________________________________________
>>>>>>>>        ghc-devs mailing list
>>>>>>>>        ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>>        http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> ghc-devs mailing list
>>>>>>>> ghc-devs at haskell.org
>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> ghc-devs mailing list
>>>>>> ghc-devs at haskell.org
>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>
>>>>
>>


From marlowsd at gmail.com  Fri May  2 13:09:33 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 02 May 2014 14:09:33 +0100
Subject: GHC status report
In-Reply-To: <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>	<CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>	<5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
Message-ID: <5363990D.5080200@gmail.com>

On 02/05/2014 01:09, Dominick Samperi wrote:

> If I understand your last comment correctly linking to libR should
> continue to work, even if you revert to static linking of Haskell compiled
> code via RTS linker. Since you say this is the way things have always
> been, perhaps the real explanation for why 7.8 fixed the issue is that
> some bug was fixed along the way...

Indeed.  To know for sure we would have to test 7.8 with 
DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?

Cheers,
Simon


> Note that R is a C library, so the C++ issues that Carter mentions are
> not a factor here.
>
> Thanks,
> Dominick
>
> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>
>>> The problem with some graphics libraries used via FFI (and other libraries
>>> that are not thread-safe), if I understand the situation correctly, is
>>> that ghci
>>> forks a thread when it shouldn't, causing some programs to miscalculate
>>> the available stack space (because they think there is only one thread).
>>
>>>
>>>
>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>> this problem, and I would not vote for the removal of these features.
>>
>>
>> So I understand how -fno-ghci-sandbox avoids problems with GUI libraries
>> that use thread-local state.  But how is dynamic linking involved here?
>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>> "miscalculate the available stack space"? What needs to calculate stack
>> space? Why? C stack space?
>>
>> We can certainly make a smoother experience around -fno-ghci-sandbox for
>> using GUI libraries.
>>
>>
>>> It is not clear to me from Simon's original post how linking to all of
>>> those C++ libs can continue to work if dynamic linking is removed
>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>> static linking"?
>>
>>
>> When I say "revert to static linking" I mean make GHCi static linked, and
>> have it load Haskell code compiled for static linking using the RTS linker
>> (like it did in 7.6).  Foreign libraries would still be loaded using the
>> system linker, as they always have been.
>>
>> To be clear, I'm not officially proposing that we drop dynamic linking, but
>> I think it's worthwhile exploring the design space again, given that we know
>> dynamic linking has been tougher than we expected.
>>
>> Cheers,
>> Simon
>>
>>
>>
>>> Thanks,
>>> Dominick
>>>
>>>
>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>> <george.colpitts at gmail.com> wrote:
>>>>
>>>> To elaborate, in the past, I had a lot of problems using libraries from
>>>> the
>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>
>>>> As an example, on the web page for the book the Haskell School of
>>>> Expression
>>>> it says:
>>>>
>>>> Note for OS X users: running graphics applications from GHCi is no longer
>>>> supported. Instead, one has to compile a graphics program using GHC in
>>>> order
>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>
>>>> I had similar problems using the Yale Euterpea music program from ghci.
>>>> When
>>>> I inquired I was referred to https://ghc.haskell.org/trac/ghc/ticket/4244
>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the latter is
>>>> now scheduled for 7.10.1
>>>>
>>>>
>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>
>>>>>
>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>
>>>>>>
>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>> 7.8.
>>>>>> I think it's worth mentioning the improvements we expect to get from
>>>>>> that. The highlights of the release notes do mention it, so maybe that
>>>>>> suffices.
>>>>>>
>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>> with
>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>> about
>>>>>> that though.
>>>>>
>>>>>
>>>>>
>>>>> I'd like to understand more about what those problems are.  As a data
>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>> in-house
>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>> perfectly.  The key to using the static linker is to not use it for C++
>>>>> code
>>>>> - you want all your external C++ code in shared libraries and load those
>>>>> using the system linker.
>>>>>
>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear that
>>>>> it's an overall improvement compared with the static linker.  Now that
>>>>> 7.8
>>>>> is out of the way, it's time to have a conversation about whether we
>>>>> want to
>>>>> do dynamic linking again for 7.10, or revert to static linking.  I think
>>>>> Austin is going to update
>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then we'll
>>>>> see
>>>>> where we stand.
>>>>>
>>>>> Cheers,
>>>>> Simon
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>
>>>>>>       As Austin has told us, there's a draft of the *GHC Status Report
>>>>>> for
>>>>>>       the HCAR*, here:____
>>>>>>
>>>>>>       https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>
>>>>>>
>>>>>>       Have we missed out something  you have been working hard on?  Do
>>>>>>       take a moment to add a bullet in an appropriate place (it's a
>>>>>>       wiki).  I'd like to be sure that we are giving credit to all the
>>>>>>       appropriate people, so please help us fix that too.  GHC is a team
>>>>>>       effort.____
>>>>>>
>>>>>>       Deadline is 1 May I think.____
>>>>>>
>>>>>>       Thanks____
>>>>>>
>>>>>>       Simon____
>>>>>>
>>>>>>       __ __
>>>>>>
>>>>>>
>>>>>>       _______________________________________________
>>>>>>       ghc-devs mailing list
>>>>>>       ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>       http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> ghc-devs mailing list
>>>>>> ghc-devs at haskell.org
>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ghc-devs mailing list
>>>> ghc-devs at haskell.org
>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>
>>

From marlowsd at gmail.com  Fri May  2 13:05:31 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 02 May 2014 14:05:31 +0100
Subject: GHC status report
In-Reply-To: <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>	<CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>	<5362BCDB.2060500@gmail.com>
 <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
Message-ID: <5363981B.7040704@gmail.com>

On 02/05/2014 00:46, Edward Kmett wrote:
> With the old custom linker we weren't able to get our custom MPFR linked
> in properly on all platforms for use in ghci.
>
> On Macs we ran into some rather interesting problems. We could get it to
> work for actual executables, but ghci would segfault with stuff resolved
> to clearly wrong addresses. If I recall correctly it may have been some
> kind of MachO symbol type that wasn't being resolved properly by the
> custom GHC linker, perhaps? We chased after it off and on for a long
> time to no avail.
>
> It was complicated a great deal by having to build their library and
> merge it directly into ours, because we couldn't use system MPFR, due to
> the issues with the GHC garbage collector hooks into GMP.

I think this is the whole problem.  Normally you would use an external 
dynamically-linked MPFR, but because you need custom changes to it, you 
have a local version of it which needs to get linked with your Haskell 
code.  Presumably you have to arrange to build it with -fPIC somehow?

If you have C/C++ code in the same library as your Haskell code, then 
dynamic linking will work better (at least on OS X, where they tend to 
change the linking semantics more often than ELF, and we have to 
duplicate that in our linker).  This is a good point, but rather than 
try to fix that I would instead look at whether you could build your 
custom MPFR as a shared library, which should work fine regardless of 
whether GHCi is dynamically linked or not.  The only issue should be 
passing the right -rpath so that executables can find your custom MPFR, 
which is something we already do for dynamic linking.

Cheers,
Simon

> Switching to the system dynamic linker fo ghci seems to have resolved
> all of that effortlessly.
>
> Dan Peebles has been talking to the MPFR folks to see if we can get them
> to expose enough information about the 'hidden' allocations they use
> that we can make them visible to GHC or have them do what our local fix
> does and avoid using the MPFR allocator for their hidden constant cache.
>
> If they do that then we can actually link to the library like normal
> rather than link it in directly, but it isn't clear to me what would
> happen even with those hooks if we rolled back to something like the old
> custom linker.
>
> -Edward
>
>
> On Thu, May 1, 2014 at 5:30 PM, Simon Marlow <marlowsd at gmail.com
> <mailto:marlowsd at gmail.com>> wrote:
>
>     On 01/05/14 15:27, Edward Kmett wrote:
>
>         Figured I'd make one case for dynamic linking:
>
>         https://github.com/ekmett/__rounded
>         <https://github.com/ekmett/rounded>
>
>         Dynamic linking is finally enabling us to build a version of MPFR
>         bindings for Haskell for scientific/high precision computing
>         with 7.8. I
>         would really hate to lose it after all of these years trying to
>         get it
>         work, as I have a rather large edifice being built atop that
>         platform.
>         We tried and failed due to limitations of the old linker for
>         almost 3 years.
>
>
>     I understand the issues with MPFR.  But how is dynamic linking helping?
>
>
>         That said, -dynamic-too seems to cause me all sorts of problems
>         elsewhere. ^C'ing out of a build and restarting it will often
>         make a .o
>         but lose the .dyn_o, leading to GHC + cabal getting confused and
>         refusing to build until I clean. This hits me several times a day.
>
>
>     We should fix this (or at least make it a lot less likely).  Is
>     there a ticket?
>
>     Cheers,
>     Simon
>
>
>         -Edward
>
>
>         On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>         <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>__>
>         wrote:
>
>              | Dynamic linking has been a huge headache in GHC, and it's not
>              clear that
>              | it's an overall improvement compared with the static
>         linker.  Now that
>              | 7.8 is out of the way, it's time to have a conversation about
>              whether we
>              | want to do dynamic linking again for 7.10, or revert to
>         static
>              linking.
>
>              I echo this. Dynamic linking has had many un-anticipated
>         costs and
>              it is still very far from sorted out.  It originally felt
>         like a
>              Fantastic Idea to give up our own linker and adopt the system
>              linker, but it now feels to me like a black hole, endlessly
>         sucking
>              effort and increasing complexity.
>
>              My viewpoint is highly un-informed about details; I just
>         watch the
>              traffic going by.  And of course it does have benefits that
>              doubtless generate less traffic.
>
>              Simon
>
>              |
>              |
>              |
>              | >
>              | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>              | > <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>         <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>
>              <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>>__>> wrote:
>              | >
>              | >     As Austin has told us, there's a draft of the *GHC
>         Status Report
>              | for
>              | >     the HCAR*, here:____
>              | >
>              | >
>         https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>              | >
>              | >     Have we missed out something  you have been working
>         hard on?  Do
>              | >     take a moment to add a bullet in an appropriate
>         place (it's a
>              | >     wiki).  I'd like to be sure that we are giving
>         credit to all the
>              | >     appropriate people, so please help us fix that too.
>           GHC is
>              a team
>              | >     effort.____
>              | >
>              | >     Deadline is 1 May I think.____
>              | >
>              | >     Thanks____
>              | >
>              | >     Simon____
>              | >
>              | >     __ __
>              | >
>              | >
>              | >     _________________________________________________
>              | >     ghc-devs mailing list
>              | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>              <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>>
>
>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>              | >
>              | >
>              | >
>              | >
>              | > _________________________________________________
>              | > ghc-devs mailing list
>              | > ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>              | > http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>              | >
>              _________________________________________________
>              ghc-devs mailing list
>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>
>
>
>

From ekmett at gmail.com  Fri May  2 22:39:27 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Fri, 2 May 2014 18:39:27 -0400
Subject: GHC status report
In-Reply-To: <5363F5A3.9080009@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0A590A80@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8SE+7cp_kAp_btnYkzTZgX0cmjdZ2-xMWNEo7LSR825w@mail.gmail.com>
 <5362BCDB.2060500@gmail.com>
 <CAJumaK_sgfRRgmGCVbEoqE-=OwxkDApVWpt8gHaocsKG40Zk8g@mail.gmail.com>
 <5363981B.7040704@gmail.com>
 <E4C679B7-F2CB-4EF2-940B-9E131F91DF66@gmail.com>
 <5363A1FB.6070506@gmail.com>
 <CAJumaK9ybFMiw8jvQ7EWCHv5UVyVUXfN2JXCaDsxbP7dPgxTNQ@mail.gmail.com>
 <5363F5A3.9080009@gmail.com>
Message-ID: <CAJumaK8AAOxUcd6mW1L1LUwmHYVjp3UAucJNvK57TMrjsQR61A@mail.gmail.com>

Come to think of it the static initializer we were trying _was_ being glued
into the haskell package, not the external lib where it might have actually
worked so that may be where my confusion came in.

-Edward


On Fri, May 2, 2014 at 3:44 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 02/05/14 18:19, Edward Kmett wrote:
>
>> I may have to dig to find an example, but when I last checked it seemed
>> that c++ libraries would load fine, but there was a problem with static
>> initializers not getting called, when loading from ghci, so if your c++
>> library needed them then you'd have problems.
>>
>
> I think we're getting confused here.  External C++ libraries are, and
> always have been, loaded by the system linker, regardless of whether GHCi
> itself is dynamically linked.  So there's no difference in 7.8 with respect
> to how external C++ code is loaded.
>
> However, if you link the C++ code into the same library as the Haskell
> code as you're doing with MPFR, then of course there is a difference (let's
> call that *internal* C++ code, for want of a better name).  I think that's
> a rare case (I understand why you need to do it), and most people should be
> linking their C++ code via separate shared libraries.
>
>
>  An earlier version of the MPFR hackery used a static initializer to
>> replace the GHC garbage collection hook for GMP with one that played
>> evil games to figure out if it was being called from the MPFR constant
>> cache.
>>
>> That initialized and loaded fine from ghc, but not from ghci. Our static
>> initializer was never being called, despite the library being loaded.
>>
>> If your C++ practices there forbid static initializers -- some places do
>> -- that may be why you aren't seeing the issue.
>>
>
> Absolutely not, we're drowning in static initialisers :)
>
> Cheers,
> Simon
>
>
>  -Edward
>>
>>
>> On Fri, May 2, 2014 at 9:47 AM, Simon Marlow <marlowsd at gmail.com
>> <mailto:marlowsd at gmail.com>> wrote:
>>
>>     On 02/05/2014 14:28, Edward Kmett wrote:
>>      > Perhaps. We actually tried that originally, but had issues about
>>      > where and how to get cabal to place it. We'd need it to go
>> somewhere
>>      > installed rather than the local build dir lest it not be there when
>>      > we go to use the lib, but IIRC, cabal couldn't/wouldn't tell me
>> where
>>      > it was putting the final installed version and then there is the
>>      > issue of the local in place runs vs. post cabal install runs and
>>      > referencing that dir from subsequent projects. If we want a
>>      > transparent ?cabal install rounded` It isn't clear to me how to get
>>      > there down this path, but it is entirely possible I just missed
>>      > something obvious.
>>      >
>>      > MPFR/rounded was just an off the cuff example. Another place where
>>      > the dynamic linker really helps is external c++ libraries which
>>      > should now actually get all of their initializers called in the
>> right
>>      > order when launched from ghci.
>>
>>     External C++ libraries work just fine with the statically linked GHCi
>> -
>>     it uses the system linker to load them, and all the initalizers get
>>     called, in the right order, as they should.  So this is where I'm
>>     confused about what the problems actually are - there seems to be this
>>     perception that GHCi didn't work with external C++ code, but as far
>> as I
>>     know it works just fine (indeed we're doing it a lot at Facebook, so
>>     there's at least an existence proof that depending on a non-trivial
>>     amount of external C++ with a statically-linked GHCi can work).
>>
>>     Cheers,
>>     Simon
>>
>>
>>      >
>>      >
>>      >> Cheers,
>>      >> Simon
>>      >>
>>      >>> Switching to the system dynamic linker fo ghci seems to have
>>     resolved
>>      >>> all of that effortlessly.
>>      >>>
>>      >>> Dan Peebles has been talking to the MPFR folks to see if we can
>>     get them
>>      >>> to expose enough information about the 'hidden' allocations
>>     they use
>>      >>> that we can make them visible to GHC or have them do what our
>>     local fix
>>      >>> does and avoid using the MPFR allocator for their hidden
>>     constant cache.
>>      >>>
>>      >>> If they do that then we can actually link to the library like
>>     normal
>>      >>> rather than link it in directly, but it isn't clear to me what
>>     would
>>      >>> happen even with those hooks if we rolled back to something
>>     like the old
>>      >>> custom linker.
>>      >>>
>>      >>> -Edward
>>      >>>
>>      >>>
>>      >>> On Thu, May 1, 2014 at 5:30 PM, Simon Marlow
>>     <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>>      >>> <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>>      >>>
>>      >>>     On 01/05/14 15:27, Edward Kmett wrote:
>>      >>>
>>      >>>         Figured I'd make one case for dynamic linking:
>>      >>>
>>      >>> https://github.com/ekmett/__rounded
>>      >>>         <https://github.com/ekmett/rounded>
>>      >>>
>>      >>>         Dynamic linking is finally enabling us to build a
>>     version of MPFR
>>      >>>         bindings for Haskell for scientific/high precision
>>     computing
>>      >>>         with 7.8. I
>>      >>>         would really hate to lose it after all of these years
>>     trying to
>>      >>>         get it
>>      >>>         work, as I have a rather large edifice being built atop
>>     that
>>      >>>         platform.
>>      >>>         We tried and failed due to limitations of the old
>>     linker for
>>      >>>         almost 3 years.
>>      >>>
>>      >>>
>>      >>>     I understand the issues with MPFR.  But how is dynamic
>>     linking helping?
>>      >>>
>>      >>>
>>      >>>         That said, -dynamic-too seems to cause me all sorts of
>>     problems
>>      >>>         elsewhere. ^C'ing out of a build and restarting it will
>>     often
>>      >>>         make a .o
>>      >>>         but lose the .dyn_o, leading to GHC + cabal getting
>>     confused and
>>      >>>         refusing to build until I clean. This hits me several
>>     times a day.
>>      >>>
>>      >>>
>>      >>>     We should fix this (or at least make it a lot less likely).
>>  Is
>>      >>>     there a ticket?
>>      >>>
>>      >>>     Cheers,
>>      >>>     Simon
>>      >>>
>>      >>>
>>      >>>         -Edward
>>      >>>
>>      >>>
>>      >>>         On Thu, May 1, 2014 at 3:29 AM, Simon Peyton Jones
>>      >>>         <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>
>>      >>>         <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>>>__>
>>      >>>         wrote:
>>      >>>
>>      >>>              | Dynamic linking has been a huge headache in GHC,
>>     and it's not
>>      >>>              clear that
>>      >>>              | it's an overall improvement compared with the
>> static
>>      >>>         linker.  Now that
>>      >>>              | 7.8 is out of the way, it's time to have a
>>     conversation about
>>      >>>              whether we
>>      >>>              | want to do dynamic linking again for 7.10, or
>>     revert to
>>      >>>         static
>>      >>>              linking.
>>      >>>
>>      >>>              I echo this. Dynamic linking has had many
>>     un-anticipated
>>      >>>         costs and
>>      >>>              it is still very far from sorted out.  It
>>     originally felt
>>      >>>         like a
>>      >>>              Fantastic Idea to give up our own linker and adopt
>>     the system
>>      >>>              linker, but it now feels to me like a black hole,
>>     endlessly
>>      >>>         sucking
>>      >>>              effort and increasing complexity.
>>      >>>
>>      >>>              My viewpoint is highly un-informed about details;
>>     I just
>>      >>>         watch the
>>      >>>              traffic going by.  And of course it does have
>>     benefits that
>>      >>>              doubtless generate less traffic.
>>      >>>
>>      >>>              Simon
>>      >>>
>>      >>>              |
>>      >>>              |
>>      >>>              |
>>      >>>              | >
>>      >>>              | > On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton
>>     Jones
>>      >>>              | > <simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>>
>>      >>>         <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>>>
>>      >>>              <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>
>>      >>>         <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>> <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>
>>      >>>         <mailto:simonpj at microsoft.com
>>     <mailto:simonpj at microsoft.com>>>__>> wrote:
>>      >>>              | >
>>      >>>              | >     As Austin has told us, there's a draft of
>>     the *GHC
>>      >>>         Status Report
>>      >>>              | for
>>      >>>              | >     the HCAR*, here:____
>>      >>>              | >
>>      >>>              | >
>>      >>> https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>>      >>>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>>      >>>              | >
>>      >>>              | >     Have we missed out something  you have
>>     been working
>>      >>>         hard on?  Do
>>      >>>              | >     take a moment to add a bullet in an
>>     appropriate
>>      >>>         place (it's a
>>      >>>              | >     wiki).  I'd like to be sure that we are
>> giving
>>      >>>         credit to all the
>>      >>>              | >     appropriate people, so please help us fix
>>     that too.
>>      >>>           GHC is
>>      >>>              a team
>>      >>>              | >     effort.____
>>      >>>              | >
>>      >>>              | >     Deadline is 1 May I think.____
>>      >>>              | >
>>      >>>              | >     Thanks____
>>      >>>              | >
>>      >>>              | >     Simon____
>>      >>>              | >
>>      >>>              | >     __ __
>>      >>>              | >
>>      >>>              | >
>>      >>>              | >
>>     _________________________________________________
>>      >>>              | >     ghc-devs mailing list
>>      >>>              | > ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>
>>      >>>         <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>>
>>      >>>              <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>
>>      >>>         <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>>>
>>      >>>
>>      >>>              | > http://www.haskell.org/__
>> mailman/listinfo/ghc-devs
>>      >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>      >>>              | >
>>      >>>              | >
>>      >>>              | >
>>      >>>              | >
>>      >>>              | > ______________________________
>> ___________________
>>      >>>              | > ghc-devs mailing list
>>      >>>              | > ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>
>>      >>>         <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>>
>>      >>>              | > http://www.haskell.org/__
>> mailman/listinfo/ghc-devs
>>      >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>      >>>              | >
>>      >>>              _________________________________________________
>>      >>>              ghc-devs mailing list
>>      >>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>      >>>         <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>     <mailto:ghc-devs at haskell.org>>>
>>      >>> http://www.haskell.org/__mailman/listinfo/ghc-devs
>>      >>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>      >>>
>>      >>>
>>      >>>
>>      >>>
>>
>>
>>
>
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From djsamperi at gmail.com  Sat May  3 00:52:52 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Fri, 2 May 2014 20:52:52 -0400
Subject: GHC status report
In-Reply-To: <5363F5E5.6040004@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
Message-ID: <CADUbQ5iJctNEwgfv8ZH3VJ1jbZ6b1tyurF6iTfeOYXkXh6vMnw@mail.gmail.com>

I posted a ticket related to this (#8371), but the example provided there
has no problems today for all versions of ghci that I tested (including
7.6.3), provided -fno-ghci-sandbox is specified. So this problem was
clearly related to the threads issue.

Today there are problems when DYNAMIC_GHC_PROGRAMS=NO, but they
happen later, and I have not yet narrowed this down to a small example.
Basically, I have an Haskell app that embeds R (as in the sample code
attached to the above ticket), but when it tries to do some calculations
it seg faults (works fine with 7.8.2).

On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
> Can you give me a quick summary of how to reproduce the problem? (not
> including the GHC build steps)
>
> Cheers,
> Simon
>
>
> On 02/05/14 18:18, Dominick Samperi wrote:
>>
>> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
>> section of mk/build.mk (with BuildFlavour = quick), and set
>> DYNAMIC_GHC_PROGRAMS=NO
>> in my environment before running configure (just to be sure!). Near
>> the end of the build
>> I saw some messages like "Warning: vectorization failure," but the
>> build completed.
>>
>> The status at the end of configure doesn't say that dynamic linking
>> via RTS has been
>> turned off, and I don't know how to check that this is so.
>> Nevertheless, I checked
>> the linking issue and it is NOT fixed with this build, so
>> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>> reported by me and others.
>>
>>
>> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>
>>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>>
>>>> If I understand your last comment correctly linking to libR should
>>>> continue to work, even if you revert to static linking of Haskell
>>>> compiled
>>>> code via RTS linker. Since you say this is the way things have always
>>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>>>> some bug was fixed along the way...
>>>
>>>
>>>
>>> Indeed.  To know for sure we would have to test 7.8 with
>>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>>>
>>> Cheers,
>>> Simon
>>>
>>>
>>>
>>>> Note that R is a C library, so the C++ issues that Carter mentions are
>>>> not a factor here.
>>>>
>>>> Thanks,
>>>> Dominick
>>>>
>>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>
>>>>>
>>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>> The problem with some graphics libraries used via FFI (and other
>>>>>> libraries
>>>>>> that are not thread-safe), if I understand the situation correctly, is
>>>>>> that ghci
>>>>>> forks a thread when it shouldn't, causing some programs to
>>>>>> miscalculate
>>>>>> the available stack space (because they think there is only one
>>>>>> thread).
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>>
>>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>>>> this problem, and I would not vote for the removal of these features.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>>>>> libraries
>>>>> that use thread-local state.  But how is dynamic linking involved here?
>>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>>>>> "miscalculate the available stack space"? What needs to calculate stack
>>>>> space? Why? C stack space?
>>>>>
>>>>> We can certainly make a smoother experience around -fno-ghci-sandbox
>>>>> for
>>>>> using GUI libraries.
>>>>>
>>>>>
>>>>>> It is not clear to me from Simon's original post how linking to all of
>>>>>> those C++ libs can continue to work if dynamic linking is removed
>>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>>>> static linking"?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> When I say "revert to static linking" I mean make GHCi static linked,
>>>>> and
>>>>> have it load Haskell code compiled for static linking using the RTS
>>>>> linker
>>>>> (like it did in 7.6).  Foreign libraries would still be loaded using
>>>>> the
>>>>> system linker, as they always have been.
>>>>>
>>>>> To be clear, I'm not officially proposing that we drop dynamic linking,
>>>>> but
>>>>> I think it's worthwhile exploring the design space again, given that we
>>>>> know
>>>>> dynamic linking has been tougher than we expected.
>>>>>
>>>>> Cheers,
>>>>> Simon
>>>>>
>>>>>
>>>>>
>>>>>> Thanks,
>>>>>> Dominick
>>>>>>
>>>>>>
>>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>>>> <george.colpitts at gmail.com> wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> To elaborate, in the past, I had a lot of problems using libraries
>>>>>>> from
>>>>>>> the
>>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>>>
>>>>>>> As an example, on the web page for the book the Haskell School of
>>>>>>> Expression
>>>>>>> it says:
>>>>>>>
>>>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>>>> longer
>>>>>>> supported. Instead, one has to compile a graphics program using GHC
>>>>>>> in
>>>>>>> order
>>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>>>
>>>>>>> I had similar problems using the Yale Euterpea music program from
>>>>>>> ghci.
>>>>>>> When
>>>>>>> I inquired I was referred to
>>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
>>>>>>> latter
>>>>>>> is
>>>>>>> now scheduled for 7.10.1
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>>>>> 7.8.
>>>>>>>>> I think it's worth mentioning the improvements we expect to get
>>>>>>>>> from
>>>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>>>> that
>>>>>>>>> suffices.
>>>>>>>>>
>>>>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>>>>> with
>>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>>>>> about
>>>>>>>>> that though.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> I'd like to understand more about what those problems are.  As a
>>>>>>>> data
>>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>>>> in-house
>>>>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>>>>> perfectly.  The key to using the static linker is to not use it for
>>>>>>>> C++
>>>>>>>> code
>>>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>>>> those
>>>>>>>> using the system linker.
>>>>>>>>
>>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear
>>>>>>>> that
>>>>>>>> it's an overall improvement compared with the static linker.  Now
>>>>>>>> that
>>>>>>>> 7.8
>>>>>>>> is out of the way, it's time to have a conversation about whether we
>>>>>>>> want to
>>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>>>> think
>>>>>>>> Austin is going to update
>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>>>> we'll
>>>>>>>> see
>>>>>>>> where we stand.
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Simon
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>>>
>>>>>>>>>        As Austin has told us, there's a draft of the *GHC Status
>>>>>>>>> Report
>>>>>>>>> for
>>>>>>>>>        the HCAR*, here:____
>>>>>>>>>
>>>>>>>>>        https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>        Have we missed out something  you have been working hard on?
>>>>>>>>> Do
>>>>>>>>>        take a moment to add a bullet in an appropriate place (it's
>>>>>>>>> a
>>>>>>>>>        wiki).  I'd like to be sure that we are giving credit to all
>>>>>>>>> the
>>>>>>>>>        appropriate people, so please help us fix that too.  GHC is
>>>>>>>>> a
>>>>>>>>> team
>>>>>>>>>        effort.____
>>>>>>>>>
>>>>>>>>>        Deadline is 1 May I think.____
>>>>>>>>>
>>>>>>>>>        Thanks____
>>>>>>>>>
>>>>>>>>>        Simon____
>>>>>>>>>
>>>>>>>>>        __ __
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>        _______________________________________________
>>>>>>>>>        ghc-devs mailing list
>>>>>>>>>        ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>>>        http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> ghc-devs mailing list
>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> ghc-devs mailing list
>>>>>>> ghc-devs at haskell.org
>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>
>>>>>
>>>
>

From carter.schonwald at gmail.com  Sat May  3 01:12:00 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Fri, 2 May 2014 21:12:00 -0400
Subject: GHC status report
In-Reply-To: <CADUbQ5iJctNEwgfv8ZH3VJ1jbZ6b1tyurF6iTfeOYXkXh6vMnw@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
 <CADUbQ5iJctNEwgfv8ZH3VJ1jbZ6b1tyurF6iTfeOYXkXh6vMnw@mail.gmail.com>
Message-ID: <CAHYVw0ykScXsEQDKA4YjR2dDT460o1Jr5bty6u=eOEwnjAa3Qg@mail.gmail.com>

if theres a way i can patch llvm-general so that i can use it with llvm
static linked into rather than dylinked, i'm all ears!

llvm-general has to use some C++ wrappers (that in turn use extern "C"
sections) to make parts of the llvm api accessible from hasskell.

I had trouble following some of the thread earlier today, but is the
suggestion to try building those wrappers with -fPIC would make them play
nice?


On Fri, May 2, 2014 at 8:52 PM, Dominick Samperi <djsamperi at gmail.com>wrote:

> I posted a ticket related to this (#8371), but the example provided there
> has no problems today for all versions of ghci that I tested (including
> 7.6.3), provided -fno-ghci-sandbox is specified. So this problem was
> clearly related to the threads issue.
>
> Today there are problems when DYNAMIC_GHC_PROGRAMS=NO, but they
> happen later, and I have not yet narrowed this down to a small example.
> Basically, I have an Haskell app that embeds R (as in the sample code
> attached to the above ticket), but when it tries to do some calculations
> it seg faults (works fine with 7.8.2).
>
> On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
> > Can you give me a quick summary of how to reproduce the problem? (not
> > including the GHC build steps)
> >
> > Cheers,
> > Simon
> >
> >
> > On 02/05/14 18:18, Dominick Samperi wrote:
> >>
> >> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
> >> section of mk/build.mk (with BuildFlavour = quick), and set
> >> DYNAMIC_GHC_PROGRAMS=NO
> >> in my environment before running configure (just to be sure!). Near
> >> the end of the build
> >> I saw some messages like "Warning: vectorization failure," but the
> >> build completed.
> >>
> >> The status at the end of configure doesn't say that dynamic linking
> >> via RTS has been
> >> turned off, and I don't know how to check that this is so.
> >> Nevertheless, I checked
> >> the linking issue and it is NOT fixed with this build, so
> >> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
> >> reported by me and others.
> >>
> >>
> >> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com>
> wrote:
> >>>
> >>> On 02/05/2014 01:09, Dominick Samperi wrote:
> >>>
> >>>> If I understand your last comment correctly linking to libR should
> >>>> continue to work, even if you revert to static linking of Haskell
> >>>> compiled
> >>>> code via RTS linker. Since you say this is the way things have always
> >>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
> >>>> some bug was fixed along the way...
> >>>
> >>>
> >>>
> >>> Indeed.  To know for sure we would have to test 7.8 with
> >>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
> >>>
> >>> Cheers,
> >>> Simon
> >>>
> >>>
> >>>
> >>>> Note that R is a C library, so the C++ issues that Carter mentions are
> >>>> not a factor here.
> >>>>
> >>>> Thanks,
> >>>> Dominick
> >>>>
> >>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com>
> wrote:
> >>>>>
> >>>>>
> >>>>> On 01/05/14 14:48, Dominick Samperi wrote:
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> The problem with some graphics libraries used via FFI (and other
> >>>>>> libraries
> >>>>>> that are not thread-safe), if I understand the situation correctly,
> is
> >>>>>> that ghci
> >>>>>> forks a thread when it shouldn't, causing some programs to
> >>>>>> miscalculate
> >>>>>> the available stack space (because they think there is only one
> >>>>>> thread).
> >>>>>
> >>>>>
> >>>>>
> >>>>>>
> >>>>>>
> >>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
> >>>>>> this problem, and I would not vote for the removal of these
> features.
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
> >>>>> libraries
> >>>>> that use thread-local state.  But how is dynamic linking involved
> here?
> >>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you
> clarify
> >>>>> "miscalculate the available stack space"? What needs to calculate
> stack
> >>>>> space? Why? C stack space?
> >>>>>
> >>>>> We can certainly make a smoother experience around -fno-ghci-sandbox
> >>>>> for
> >>>>> using GUI libraries.
> >>>>>
> >>>>>
> >>>>>> It is not clear to me from Simon's original post how linking to all
> of
> >>>>>> those C++ libs can continue to work if dynamic linking is removed
> >>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
> >>>>>> static linking"?
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>> When I say "revert to static linking" I mean make GHCi static linked,
> >>>>> and
> >>>>> have it load Haskell code compiled for static linking using the RTS
> >>>>> linker
> >>>>> (like it did in 7.6).  Foreign libraries would still be loaded using
> >>>>> the
> >>>>> system linker, as they always have been.
> >>>>>
> >>>>> To be clear, I'm not officially proposing that we drop dynamic
> linking,
> >>>>> but
> >>>>> I think it's worthwhile exploring the design space again, given that
> we
> >>>>> know
> >>>>> dynamic linking has been tougher than we expected.
> >>>>>
> >>>>> Cheers,
> >>>>> Simon
> >>>>>
> >>>>>
> >>>>>
> >>>>>> Thanks,
> >>>>>> Dominick
> >>>>>>
> >>>>>>
> >>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
> >>>>>> <george.colpitts at gmail.com> wrote:
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> To elaborate, in the past, I had a lot of problems using libraries
> >>>>>>> from
> >>>>>>> the
> >>>>>>> ghci prompt on the Mac but I haven't tried recently.
> >>>>>>>
> >>>>>>> As an example, on the web page for the book the Haskell School of
> >>>>>>> Expression
> >>>>>>> it says:
> >>>>>>>
> >>>>>>> Note for OS X users: running graphics applications from GHCi is no
> >>>>>>> longer
> >>>>>>> supported. Instead, one has to compile a graphics program using GHC
> >>>>>>> in
> >>>>>>> order
> >>>>>>> to run it (see example/GMIExamples.lhs for an example).
> >>>>>>>
> >>>>>>> I had similar problems using the Yale Euterpea music program from
> >>>>>>> ghci.
> >>>>>>> When
> >>>>>>> I inquired I was referred to
> >>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
> >>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
> >>>>>>> latter
> >>>>>>> is
> >>>>>>> now scheduled for 7.10.1
> >>>>>>>
> >>>>>>>
> >>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
> >>>>>>> wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> It doesn't have anything about the dynamic linking changes made
> for
> >>>>>>>>> 7.8.
> >>>>>>>>> I think it's worth mentioning the improvements we expect to get
> >>>>>>>>> from
> >>>>>>>>> that. The highlights of the release notes do mention it, so maybe
> >>>>>>>>> that
> >>>>>>>>> suffices.
> >>>>>>>>>
> >>>>>>>>> In particular, I'm hoping that it is going to fix a lot of
> problems
> >>>>>>>>> with
> >>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be
> wrong
> >>>>>>>>> about
> >>>>>>>>> that though.
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> I'd like to understand more about what those problems are.  As a
> >>>>>>>> data
> >>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
> >>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party
> C++
> >>>>>>>> libraries and one gigantic shared library consisting of a ton of
> >>>>>>>> in-house
> >>>>>>>> C++ code, together with all our Haskell code into GHCi, and it
> works
> >>>>>>>> perfectly.  The key to using the static linker is to not use it
> for
> >>>>>>>> C++
> >>>>>>>> code
> >>>>>>>> - you want all your external C++ code in shared libraries and load
> >>>>>>>> those
> >>>>>>>> using the system linker.
> >>>>>>>>
> >>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not
> clear
> >>>>>>>> that
> >>>>>>>> it's an overall improvement compared with the static linker.  Now
> >>>>>>>> that
> >>>>>>>> 7.8
> >>>>>>>> is out of the way, it's time to have a conversation about whether
> we
> >>>>>>>> want to
> >>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
> >>>>>>>> think
> >>>>>>>> Austin is going to update
> >>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and
> then
> >>>>>>>> we'll
> >>>>>>>> see
> >>>>>>>> where we stand.
> >>>>>>>>
> >>>>>>>> Cheers,
> >>>>>>>> Simon
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>
> >>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
> >>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
> >>>>>>>>>
> >>>>>>>>>        As Austin has told us, there's a draft of the *GHC Status
> >>>>>>>>> Report
> >>>>>>>>> for
> >>>>>>>>>        the HCAR*, here:____
> >>>>>>>>>
> >>>>>>>>>        https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>        Have we missed out something  you have been working hard
> on?
> >>>>>>>>> Do
> >>>>>>>>>        take a moment to add a bullet in an appropriate place
> (it's
> >>>>>>>>> a
> >>>>>>>>>        wiki).  I'd like to be sure that we are giving credit to
> all
> >>>>>>>>> the
> >>>>>>>>>        appropriate people, so please help us fix that too.  GHC
> is
> >>>>>>>>> a
> >>>>>>>>> team
> >>>>>>>>>        effort.____
> >>>>>>>>>
> >>>>>>>>>        Deadline is 1 May I think.____
> >>>>>>>>>
> >>>>>>>>>        Thanks____
> >>>>>>>>>
> >>>>>>>>>        Simon____
> >>>>>>>>>
> >>>>>>>>>        __ __
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>        _______________________________________________
> >>>>>>>>>        ghc-devs mailing list
> >>>>>>>>>        ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
> >>>>>>>>>        http://www.haskell.org/mailman/listinfo/ghc-devs
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> _______________________________________________
> >>>>>>>>> ghc-devs mailing list
> >>>>>>>>> ghc-devs at haskell.org
> >>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
> >>>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> _______________________________________________
> >>>>>>> ghc-devs mailing list
> >>>>>>> ghc-devs at haskell.org
> >>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
> >>>>>>>
> >>>>>
> >>>
> >
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From djsamperi at gmail.com  Sat May  3 03:15:45 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Fri, 2 May 2014 23:15:45 -0400
Subject: GHC status report
In-Reply-To: <5363F5E5.6040004@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
Message-ID: <CADUbQ5iwejadOJjrkN-p+FWV-VPRHDBXGtc7rrc5j-+PBGCmrg@mail.gmail.com>

I'm trying to understand the dynamic linking situation with the help of
https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-7.8, and according
to this information I need to specify DYNAMIC_GHC_PROGRAMS=YES
for ghci to use the system linker. I don't understand why you suggested
I test with DYNAMIC_GHC_PROGRAMS=NO?

Another interesting twist is that my experience under Windows
is the opposite of the negative experience described on this
page. What I mean by this is more versions of ghci seem to
work under Windows (correctly linking to R.dll) than work
under Linux!


On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
> Can you give me a quick summary of how to reproduce the problem? (not
> including the GHC build steps)
>
> Cheers,
> Simon
>
>
> On 02/05/14 18:18, Dominick Samperi wrote:
>>
>> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
>> section of mk/build.mk (with BuildFlavour = quick), and set
>> DYNAMIC_GHC_PROGRAMS=NO
>> in my environment before running configure (just to be sure!). Near
>> the end of the build
>> I saw some messages like "Warning: vectorization failure," but the
>> build completed.
>>
>> The status at the end of configure doesn't say that dynamic linking
>> via RTS has been
>> turned off, and I don't know how to check that this is so.
>> Nevertheless, I checked
>> the linking issue and it is NOT fixed with this build, so
>> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>> reported by me and others.
>>
>>
>> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>
>>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>>
>>>> If I understand your last comment correctly linking to libR should
>>>> continue to work, even if you revert to static linking of Haskell
>>>> compiled
>>>> code via RTS linker. Since you say this is the way things have always
>>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>>>> some bug was fixed along the way...
>>>
>>>
>>>
>>> Indeed.  To know for sure we would have to test 7.8 with
>>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>>>
>>> Cheers,
>>> Simon
>>>
>>>
>>>
>>>> Note that R is a C library, so the C++ issues that Carter mentions are
>>>> not a factor here.
>>>>
>>>> Thanks,
>>>> Dominick
>>>>
>>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>
>>>>>
>>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>> The problem with some graphics libraries used via FFI (and other
>>>>>> libraries
>>>>>> that are not thread-safe), if I understand the situation correctly, is
>>>>>> that ghci
>>>>>> forks a thread when it shouldn't, causing some programs to
>>>>>> miscalculate
>>>>>> the available stack space (because they think there is only one
>>>>>> thread).
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>>
>>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>>>> this problem, and I would not vote for the removal of these features.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>>>>> libraries
>>>>> that use thread-local state.  But how is dynamic linking involved here?
>>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>>>>> "miscalculate the available stack space"? What needs to calculate stack
>>>>> space? Why? C stack space?
>>>>>
>>>>> We can certainly make a smoother experience around -fno-ghci-sandbox
>>>>> for
>>>>> using GUI libraries.
>>>>>
>>>>>
>>>>>> It is not clear to me from Simon's original post how linking to all of
>>>>>> those C++ libs can continue to work if dynamic linking is removed
>>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>>>> static linking"?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> When I say "revert to static linking" I mean make GHCi static linked,
>>>>> and
>>>>> have it load Haskell code compiled for static linking using the RTS
>>>>> linker
>>>>> (like it did in 7.6).  Foreign libraries would still be loaded using
>>>>> the
>>>>> system linker, as they always have been.
>>>>>
>>>>> To be clear, I'm not officially proposing that we drop dynamic linking,
>>>>> but
>>>>> I think it's worthwhile exploring the design space again, given that we
>>>>> know
>>>>> dynamic linking has been tougher than we expected.
>>>>>
>>>>> Cheers,
>>>>> Simon
>>>>>
>>>>>
>>>>>
>>>>>> Thanks,
>>>>>> Dominick
>>>>>>
>>>>>>
>>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>>>> <george.colpitts at gmail.com> wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> To elaborate, in the past, I had a lot of problems using libraries
>>>>>>> from
>>>>>>> the
>>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>>>
>>>>>>> As an example, on the web page for the book the Haskell School of
>>>>>>> Expression
>>>>>>> it says:
>>>>>>>
>>>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>>>> longer
>>>>>>> supported. Instead, one has to compile a graphics program using GHC
>>>>>>> in
>>>>>>> order
>>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>>>
>>>>>>> I had similar problems using the Yale Euterpea music program from
>>>>>>> ghci.
>>>>>>> When
>>>>>>> I inquired I was referred to
>>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
>>>>>>> latter
>>>>>>> is
>>>>>>> now scheduled for 7.10.1
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>>>>> 7.8.
>>>>>>>>> I think it's worth mentioning the improvements we expect to get
>>>>>>>>> from
>>>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>>>> that
>>>>>>>>> suffices.
>>>>>>>>>
>>>>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>>>>> with
>>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>>>>> about
>>>>>>>>> that though.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> I'd like to understand more about what those problems are.  As a
>>>>>>>> data
>>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>>>> in-house
>>>>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>>>>> perfectly.  The key to using the static linker is to not use it for
>>>>>>>> C++
>>>>>>>> code
>>>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>>>> those
>>>>>>>> using the system linker.
>>>>>>>>
>>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear
>>>>>>>> that
>>>>>>>> it's an overall improvement compared with the static linker.  Now
>>>>>>>> that
>>>>>>>> 7.8
>>>>>>>> is out of the way, it's time to have a conversation about whether we
>>>>>>>> want to
>>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>>>> think
>>>>>>>> Austin is going to update
>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>>>> we'll
>>>>>>>> see
>>>>>>>> where we stand.
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Simon
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>>>
>>>>>>>>>        As Austin has told us, there's a draft of the *GHC Status
>>>>>>>>> Report
>>>>>>>>> for
>>>>>>>>>        the HCAR*, here:____
>>>>>>>>>
>>>>>>>>>        https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>        Have we missed out something  you have been working hard on?
>>>>>>>>> Do
>>>>>>>>>        take a moment to add a bullet in an appropriate place (it's
>>>>>>>>> a
>>>>>>>>>        wiki).  I'd like to be sure that we are giving credit to all
>>>>>>>>> the
>>>>>>>>>        appropriate people, so please help us fix that too.  GHC is
>>>>>>>>> a
>>>>>>>>> team
>>>>>>>>>        effort.____
>>>>>>>>>
>>>>>>>>>        Deadline is 1 May I think.____
>>>>>>>>>
>>>>>>>>>        Thanks____
>>>>>>>>>
>>>>>>>>>        Simon____
>>>>>>>>>
>>>>>>>>>        __ __
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>        _______________________________________________
>>>>>>>>>        ghc-devs mailing list
>>>>>>>>>        ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>>>        http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> ghc-devs mailing list
>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> ghc-devs mailing list
>>>>>>> ghc-devs at haskell.org
>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>
>>>>>
>>>
>

From fuuzetsu at fuuzetsu.co.uk  Sat May  3 06:31:47 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Sat, 03 May 2014 08:31:47 +0200
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <20140502135022.821402416A@ghc.haskell.org>
References: <20140502135022.821402416A@ghc.haskell.org>
Message-ID: <53648D53.9000601@fuuzetsu.co.uk>

On 05/02/2014 03:50 PM, git at git.haskell.org wrote:
> Repository : ssh://git at git.haskell.org/ghc
> 
> On branch  : master
> Link       : http://ghc.haskell.org/trac/ghc/changeset/b0534f78a73f972e279eed4447a5687bd6a8308e/ghc
> 
>> ---------------------------------------------------------------
> 
> commit b0534f78a73f972e279eed4447a5687bd6a8308e
> Author: Simon Marlow <marlowsd at gmail.com>
> Date:   Mon Apr 28 16:55:47 2014 +0100
> 
>     Per-thread allocation counters and limits
>     
>     This tracks the amount of memory allocation by each thread in a
>     counter stored in the TSO.  Optionally, when the counter drops below
>     zero (it counts down), the thread can be sent an asynchronous
>     exception: AllocationLimitExceeded.  When this happens, given a small
>     additional limit so that it can handle the exception.  See
>     documentation in GHC.Conc for more details.
>     
>     Allocation limits are similar to timeouts, but
>     
>       - timeouts use real time, not CPU time.  Allocation limits do not
>         count anything while the thread is blocked or in foreign code.
>     
>       - timeouts don't re-trigger if the thread catches the exception,
>         allocation limits do.
>     
>       - timeouts can catch non-allocating loops, if you use
>         -fno-omit-yields.  This doesn't work for allocation limits.
>     
>     I couldn't measure any impact on benchmarks with these changes, even
>     for nofib/smp.
> 
> 
>> ---------------------------------------------------------------
> 
> b0534f78a73f972e279eed4447a5687bd6a8308e
>  compiler/cmm/CmmLayoutStack.hs                     |    9 +-
>  compiler/codeGen/StgCmmForeign.hs                  |  268 ++++++++++++++------
>  includes/CodeGen.Platform.hs                       |    4 +-
>  includes/rts/Constants.h                           |    6 +
>  includes/rts/Flags.h                               |    8 +
>  includes/rts/Threads.h                             |    8 +-
>  includes/rts/storage/TSO.h                         |   31 ++-
>  libraries/base/Control/Exception.hs                |    1 +
>  libraries/base/Control/Exception/Base.hs           |    1 +
>  libraries/base/GHC/Conc.lhs                        |    6 +
>  libraries/base/GHC/Conc/Sync.lhs                   |   92 ++++++-
>  libraries/base/GHC/IO/Exception.hs                 |   21 +-
>  rts/HeapStackCheck.cmm                             |    4 +-
>  rts/Linker.c                                       |    4 +
>  rts/Prelude.h                                      |    2 +
>  rts/RaiseAsync.c                                   |   54 ++++
>  rts/RaiseAsync.h                                   |    4 +
>  rts/RtsFlags.c                                     |   10 +
>  rts/RtsStartup.c                                   |    1 +
>  rts/Schedule.c                                     |   19 ++
>  rts/Threads.c                                      |   77 +++---
>  rts/package.conf.in                                |    2 +
>  rts/sm/Storage.c                                   |    6 +
>  testsuite/tests/concurrent/should_run/all.T        |    7 +
>  .../tests/concurrent/should_run/allocLimit1.hs     |    9 +
>  .../tests/concurrent/should_run/allocLimit1.stderr |    1 +
>  .../tests/concurrent/should_run/allocLimit2.hs     |   17 ++
>  .../tests/concurrent/should_run/allocLimit3.hs     |   15 ++
>  .../tests/concurrent/should_run/allocLimit3.stderr |    1 +
>  .../should_run/allocLimit3.stdout}                 |    1 -
>  .../tests/concurrent/should_run/allocLimit4.hs     |   31 +++
>  utils/deriveConstants/DeriveConstants.hs           |    1 +
>  32 files changed, 576 insertions(+), 145 deletions(-)
> 
> Diff suppressed because of size. To see it, use:
> 
>     git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc b0534f78a73f972e279eed4447a5687bd6a8308e
> _______________________________________________
> ghc-commits mailing list
> ghc-commits at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-commits
> 

I just tried to compile a snapshot involving this commit and got a
compile failure:

http://lpaste.net/103540

I was compiling with GHC 7.8.2 on a 32-bit machine.

-- 
Mateusz K.

From hvriedel at gmail.com  Sat May  3 06:35:27 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Sat, 03 May 2014 08:35:27 +0200
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <53648D53.9000601@fuuzetsu.co.uk> (Mateusz Kowalczyk's message of
 "Sat, 03 May 2014 08:31:47 +0200")
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
Message-ID: <87fvkrpdxs.fsf@gmail.com>

On 2014-05-03 at 08:31:47 +0200, Mateusz Kowalczyk wrote:

[...]

> I just tried to compile a snapshot involving this commit and got a
> compile failure:
>
> http://lpaste.net/103540
>
> I was compiling with GHC 7.8.2 on a 32-bit machine.

The nightly 32bit GHC HEAD PPA build failed as well, see

 https://launchpadlibrarian.net/174440396/buildlog_ubuntu-precise-i386.ghc-head_7.9.20140502-1_FAILEDTOBUILD.txt.gz


From fw at deneb.enyo.de  Sat May  3 10:05:27 2014
From: fw at deneb.enyo.de (Florian Weimer)
Date: Sat, 03 May 2014 12:05:27 +0200
Subject: C-- specfication
Message-ID: <87iopntbx4.fsf@mid.deneb.enyo.de>

I'm looking for a specification of C--.  I can't find it on the
cminuscminus.org web site, and it's also not included in the release
tarball.  Does anybody know where to get it?

From benl at ouroborus.net  Sat May  3 10:30:04 2014
From: benl at ouroborus.net (Ben Lippmeier)
Date: Sat, 3 May 2014 20:30:04 +1000
Subject: C-- specfication
In-Reply-To: <87iopntbx4.fsf@mid.deneb.enyo.de>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
Message-ID: <2CAC6828-B838-4EB4-AA76-0C8A7DF66237@ouroborus.net>


On 3 May 2014, at 20:05 , Florian Weimer <fw at deneb.enyo.de> wrote:

> I'm looking for a specification of C--.  I can't find it on the
> cminuscminus.org web site, and it's also not included in the release
> tarball.  Does anybody know where to get it?

Ka-ching: http://www.cs.tufts.edu/~nr/c--/extern/man2.pdf

Ben.


From benl at ouroborus.net  Sat May  3 10:33:06 2014
From: benl at ouroborus.net (Ben Lippmeier)
Date: Sat, 3 May 2014 20:33:06 +1000
Subject: C-- specfication
In-Reply-To: <2CAC6828-B838-4EB4-AA76-0C8A7DF66237@ouroborus.net>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
 <2CAC6828-B838-4EB4-AA76-0C8A7DF66237@ouroborus.net>
Message-ID: <D37E1C7F-2F49-42E6-AD93-131FCF56F78B@ouroborus.net>


On 3 May 2014, at 20:30 , Ben Lippmeier <benl at ouroborus.net> wrote:

> 
> On 3 May 2014, at 20:05 , Florian Weimer <fw at deneb.enyo.de> wrote:
> 
>> I'm looking for a specification of C--.  I can't find it on the
>> cminuscminus.org web site, and it's also not included in the release
>> tarball.  Does anybody know where to get it?
> 
> Ka-ching: http://www.cs.tufts.edu/~nr/c--/extern/man2.pdf


Note that GHC doesn't actually implement C-- as per the spec. It's got an intermediate language named Cmm that is "inspired by" C--, but they're not the same thing. 

Ben.


From rarash at student.chalmers.se  Sat May  3 10:33:05 2014
From: rarash at student.chalmers.se (Arash Rouhani)
Date: Sat, 3 May 2014 12:33:05 +0200
Subject: C-- specfication
In-Reply-To: <87iopntbx4.fsf@mid.deneb.enyo.de>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
Message-ID: <5364C5E1.9030404@student.chalmers.se>

(Sorry Florian, I forgot to "reply to list"!)

Hi Florian!

Forget Cminusminus.org, in my experience it seems to have diverged from 
the GHC version of Cminusminus.

I would recommend these resources

 1. See the top of
    https://github.com/ghc/ghc/blob/master/compiler/cmm/CmmParse.y
 2. Be ready to occasionally look into
    https://github.com/ghc/ghc/blob/master/includes/Cmm.h
 3. Edward Yang's blog post is a must-read
    http://blog.ezyang.com/2013/07/no-grammar-no-problem/ (less than a
    year old)
 4. You can also get the big picture of Cmm from David Terei's bachelor
    thesis:
    https://davidterei.com/downloads/papers/terei:2009:honours_thesis.pdf
 5. 2 years ago, Simon Marlow extended the classical Cmm syntax to make
    it much nicer:
    https://github.com/ghc/ghc/commit/a7c0387d20c1c9994d1100b14fbb8fb4e28a259e
 6. The commentary (it is kinda outdated in my experience, but worth
    taking a look :)),
    https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Cmm *and*
    https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/CmmType
 7. Read the code! There's a lot of Cmm files and after looking at
    various parts of it for a while parts start to make sense :)
 8. Shameless plug: You might find sections 4.2 and 4.2.1 from my master
    thesis helpful to understand the difference between arguments and
    fields. http://arashrouhani.com/papers/master-thesis.pdf

And it will take time to learn Cmm. The most unintuitive thing for me 
that took me a while to understand is that there are no function calls 
in "classical" cmm code. The newer syntax allows function calls but you 
should know that they are kind of magical. Hope this helps! :)

(Sorry for giving so many reading references :p)

Cheers,
Arash


On 2014-05-03 12:05, Florian Weimer wrote:
> I'm looking for a specification of C--.  I can't find it on the
> cminuscminus.org web site, and it's also not included in the release
> tarball.  Does anybody know where to get it?
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs

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From shumovichy at gmail.com  Sat May  3 10:34:37 2014
From: shumovichy at gmail.com (Yuras Shumovich)
Date: Sat, 03 May 2014 13:34:37 +0300
Subject: C-- specfication
In-Reply-To: <87iopntbx4.fsf@mid.deneb.enyo.de>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
Message-ID: <1399113277.4718.3.camel@shum-lt>

Are you interested in ghc's cmm? It is different from the original C--.
(And it differs between ghc versions.)

Here is the best thing I found:
https://github.com/ghc/ghc/blob/master/compiler/cmm/CmmParse.y

There is a wiki page:
https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/CmmType
But is it out of date and sometimes misleading.

On Sat, 2014-05-03 at 12:05 +0200, Florian Weimer wrote:
> I'm looking for a specification of C--.  I can't find it on the
> cminuscminus.org web site, and it's also not included in the release
> tarball.  Does anybody know where to get it?
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs



From karel.gardas at centrum.cz  Sat May  3 11:00:20 2014
From: karel.gardas at centrum.cz (Karel Gardas)
Date: Sat, 03 May 2014 13:00:20 +0200
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <87fvkrpdxs.fsf@gmail.com>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk> <87fvkrpdxs.fsf@gmail.com>
Message-ID: <5364CC44.8060804@centrum.cz>

On 05/ 3/14 08:35 AM, Herbert Valerio Riedel wrote:
> On 2014-05-03 at 08:31:47 +0200, Mateusz Kowalczyk wrote:
>
> [...]
>
>> I just tried to compile a snapshot involving this commit and got a
>> compile failure:
>>
>> http://lpaste.net/103540
>>
>> I was compiling with GHC 7.8.2 on a 32-bit machine.
>
> The nightly 32bit GHC HEAD PPA build failed as well, see
>
>   https://launchpadlibrarian.net/174440396/buildlog_ubuntu-precise-i386.ghc-head_7.9.20140502-1_FAILEDTOBUILD.txt.gz

All builders (solaris/freebsd/smartos) fail too. Example:

http://haskell.inf.elte.hu/builders/solaris-x86-head/47/10.html

build a day ago was ok: 
http://haskell.inf.elte.hu/builders/solaris-x86-head/46.html

Thanks,
Karel

From fw at deneb.enyo.de  Sat May  3 11:11:11 2014
From: fw at deneb.enyo.de (Florian Weimer)
Date: Sat, 03 May 2014 13:11:11 +0200
Subject: C-- specfication
In-Reply-To: <1399113277.4718.3.camel@shum-lt> (Yuras Shumovich's message of
 "Sat, 03 May 2014 13:34:37 +0300")
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
 <1399113277.4718.3.camel@shum-lt>
Message-ID: <87eh0bt8vk.fsf@mid.deneb.enyo.de>

* Yuras Shumovich:

> Are you interested in ghc's cmm? It is different from the original C--.
> (And it differs between ghc versions.)

Actually, I'm interested in some form of Mini-C (in the spirit of
Mini-ML or Featherweight Java) for some experiment, and I assumed that
people here would know where to get the C-- specification.  Looks like
I wasn't mistaken, thanks. :)

I'm not sure yet if C-- fits my needs, though.

From ghc at abacathoo.org  Sat May  3 11:59:16 2014
From: ghc at abacathoo.org (William Kenyon)
Date: Sat, 3 May 2014 11:59:16 +0000
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <53648D53.9000601@fuuzetsu.co.uk>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
Message-ID: <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>

I think this should fix the problem.
It certainly doesn't break anything on a 64 bit machine,
and should fix the problem on a 32 bit machine (although I can't test that)


On 3 May 2014 06:31, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> wrote:

> On 05/02/2014 03:50 PM, git at git.haskell.org wrote:
> > Repository : ssh://git at git.haskell.org/ghc
> >
> > On branch  : master
> > Link       :
> http://ghc.haskell.org/trac/ghc/changeset/b0534f78a73f972e279eed4447a5687bd6a8308e/ghc
> >
> >> ---------------------------------------------------------------
> >
> > commit b0534f78a73f972e279eed4447a5687bd6a8308e
> > Author: Simon Marlow <marlowsd at gmail.com>
> > Date:   Mon Apr 28 16:55:47 2014 +0100
> >
> >     Per-thread allocation counters and limits
> >
> >     This tracks the amount of memory allocation by each thread in a
> >     counter stored in the TSO.  Optionally, when the counter drops below
> >     zero (it counts down), the thread can be sent an asynchronous
> >     exception: AllocationLimitExceeded.  When this happens, given a small
> >     additional limit so that it can handle the exception.  See
> >     documentation in GHC.Conc for more details.
> >
> >     Allocation limits are similar to timeouts, but
> >
> >       - timeouts use real time, not CPU time.  Allocation limits do not
> >         count anything while the thread is blocked or in foreign code.
> >
> >       - timeouts don't re-trigger if the thread catches the exception,
> >         allocation limits do.
> >
> >       - timeouts can catch non-allocating loops, if you use
> >         -fno-omit-yields.  This doesn't work for allocation limits.
> >
> >     I couldn't measure any impact on benchmarks with these changes, even
> >     for nofib/smp.
> >
> >
> >> ---------------------------------------------------------------
> >
> > b0534f78a73f972e279eed4447a5687bd6a8308e
> >  compiler/cmm/CmmLayoutStack.hs                     |    9 +-
> >  compiler/codeGen/StgCmmForeign.hs                  |  268
> ++++++++++++++------
> >  includes/CodeGen.Platform.hs                       |    4 +-
> >  includes/rts/Constants.h                           |    6 +
> >  includes/rts/Flags.h                               |    8 +
> >  includes/rts/Threads.h                             |    8 +-
> >  includes/rts/storage/TSO.h                         |   31 ++-
> >  libraries/base/Control/Exception.hs                |    1 +
> >  libraries/base/Control/Exception/Base.hs           |    1 +
> >  libraries/base/GHC/Conc.lhs                        |    6 +
> >  libraries/base/GHC/Conc/Sync.lhs                   |   92 ++++++-
> >  libraries/base/GHC/IO/Exception.hs                 |   21 +-
> >  rts/HeapStackCheck.cmm                             |    4 +-
> >  rts/Linker.c                                       |    4 +
> >  rts/Prelude.h                                      |    2 +
> >  rts/RaiseAsync.c                                   |   54 ++++
> >  rts/RaiseAsync.h                                   |    4 +
> >  rts/RtsFlags.c                                     |   10 +
> >  rts/RtsStartup.c                                   |    1 +
> >  rts/Schedule.c                                     |   19 ++
> >  rts/Threads.c                                      |   77 +++---
> >  rts/package.conf.in                                |    2 +
> >  rts/sm/Storage.c                                   |    6 +
> >  testsuite/tests/concurrent/should_run/all.T        |    7 +
> >  .../tests/concurrent/should_run/allocLimit1.hs     |    9 +
> >  .../tests/concurrent/should_run/allocLimit1.stderr |    1 +
> >  .../tests/concurrent/should_run/allocLimit2.hs     |   17 ++
> >  .../tests/concurrent/should_run/allocLimit3.hs     |   15 ++
> >  .../tests/concurrent/should_run/allocLimit3.stderr |    1 +
> >  .../should_run/allocLimit3.stdout}                 |    1 -
> >  .../tests/concurrent/should_run/allocLimit4.hs     |   31 +++
> >  utils/deriveConstants/DeriveConstants.hs           |    1 +
> >  32 files changed, 576 insertions(+), 145 deletions(-)
> >
> > Diff suppressed because of size. To see it, use:
> >
> >     git diff-tree --root --patch-with-stat --no-color
> --find-copies-harder --ignore-space-at-eol --cc
> b0534f78a73f972e279eed4447a5687bd6a8308e
> > _______________________________________________
> > ghc-commits mailing list
> > ghc-commits at haskell.org
> > http://www.haskell.org/mailman/listinfo/ghc-commits
> >
>
> I just tried to compile a snapshot involving this commit and got a
> compile failure:
>
> http://lpaste.net/103540
>
> I was compiling with GHC 7.8.2 on a 32-bit machine.
>
> --
> Mateusz K.
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From slyich at gmail.com  Sat May  3 19:29:14 2014
From: slyich at gmail.com (Sergei Trofimovich)
Date: Sat,  3 May 2014 22:29:14 +0300
Subject: [PATCH] fix rts exported symbols
 base_GHCziIOziException_allocationLimitExceeded_closure
Message-ID: <1399145354-4411-1-git-send-email-slyich@gmail.com>

From: Sergei Trofimovich <slyfox at gentoo.org>

Commit  b0534f78a73f972e279eed4447a5687bd6a8308e added new exported rts symbols,
but slightly misspelled them.

Observer on first compiled program:
> Linking dist/build/haskell-updater/haskell-updater ...
> /usr/lib64/ghc-7.9.20140503/rts-1.0/libHSrts.a(Schedule.o): In function `scheduleWaitThread':
> (.text+0xc4c): undefined reference to `base_GHCziIOziException_allocationLimitExceeded_closure'
> /usr/lib64/ghc-7.9.20140503/rts-1.0/libHSrts.a(RtsStartup.o): In function `hs_init_ghc':
> (.text+0x2fa): undefined reference to `base_GHCziIOziException_allocationLimitExceeded_closure'
> collect2: error: ld returned 1 exit status

CC: Simon Marlow <marlowsd at gmail.com>
Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>
---
 rts/package.conf.in     | 4 ++--
 rts/win32/libHSbase.def | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/rts/package.conf.in b/rts/package.conf.in
index 25fb5eb..914dd9c 100644
--- a/rts/package.conf.in
+++ b/rts/package.conf.in
@@ -98,7 +98,7 @@ ld-options:
          , "-Wl,-u,_base_ControlziExceptionziBase_nonTermination_closure"
          , "-Wl,-u,_base_GHCziIOziException_blockedIndefinitelyOnMVar_closure"
          , "-Wl,-u,_base_GHCziIOziException_blockedIndefinitelyOnSTM_closure"
-         , "-Wl,-u,_base_GHCziIOziException_allocationQuotaExceeded_closure"
+         , "-Wl,-u,_base_GHCziIOziException_allocationLimitExceeded_closure"
          , "-Wl,-u,_base_ControlziExceptionziBase_nestedAtomically_closure"
          , "-Wl,-u,_base_GHCziWeak_runFinalizzerBatch_closure"
          , "-Wl,-u,_base_GHCziTopHandler_flushStdHandles_closure"
@@ -139,7 +139,7 @@ ld-options:
          , "-Wl,-u,base_ControlziExceptionziBase_nonTermination_closure"
          , "-Wl,-u,base_GHCziIOziException_blockedIndefinitelyOnMVar_closure"
          , "-Wl,-u,base_GHCziIOziException_blockedIndefinitelyOnSTM_closure"
-         , "-Wl,-u,base_GHCziIOziException_allocationQuotaExceeded_closure"
+         , "-Wl,-u,base_GHCziIOziException_allocationLimitExceeded_closure"
          , "-Wl,-u,base_ControlziExceptionziBase_nestedAtomically_closure"
          , "-Wl,-u,base_GHCziWeak_runFinalizzerBatch_closure"
          , "-Wl,-u,base_GHCziTopHandler_flushStdHandles_closure"
diff --git a/rts/win32/libHSbase.def b/rts/win32/libHSbase.def
index 119237b..6bb19da 100644
--- a/rts/win32/libHSbase.def
+++ b/rts/win32/libHSbase.def
@@ -36,6 +36,7 @@ EXPORTS
 	base_GHCziPack_unpackCString_closure
 	base_GHCziIOziException_blockedIndefinitelyOnMVar_closure
 	base_GHCziIOziException_blockedIndefinitelyOnSTM_closure
+	base_GHCziIOziException_allocationLimitExceeded_closure
 	base_GHCziIOziException_stackOverflow_closure
 
 	base_ControlziExceptionziBase_nonTermination_closure
-- 
1.9.2


From mail at joachim-breitner.de  Sat May  3 20:08:07 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Sat, 03 May 2014 22:08:07 +0200
Subject: Validate failures
Message-ID: <1399147687.19761.1.camel@kirk>

Hi,

I?m seeing these failures on travis. Anyone feeling responsible?

master:
        
        Actual stderr output differs from expected:
        --- /dev/null	2014-05-03 18:30:46.325826237 +0000
        +++ ./ffi/should_compile/cc004.comp.stderr	2014-05-03 19:08:47.864969234 +0000
        @@ -0,0 +1,73 @@
        +
        +cc004.hs:16:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static p" m_stdcall
        +        :: StablePtr a -> IO (StablePtr b)
        +
        +cc004.hs:21:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static my_sin" my_sin
        +        :: Double -> IO Double
        +
        +cc004.hs:22:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static my_cos" my_cos
        +        :: Double -> IO Double
        +
        +cc004.hs:24:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static m1" m8 :: IO Int8
        +
        +cc004.hs:25:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static m2" m16 :: IO Int16
        +
        +cc004.hs:26:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static m3" m32 :: IO Int32
        +
        +cc004.hs:27:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "static m4" m64 :: IO Int64
        +
        +cc004.hs:29:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "dynamic" d8
        +        :: FunPtr (IO Int8) -> IO Int8
        +
        +cc004.hs:30:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "dynamic" d16
        +        :: FunPtr (IO Int16) -> IO Int16
        +
        +cc004.hs:31:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "dynamic" d32
        +        :: FunPtr (IO Int32) -> IO Int32
        +
        +cc004.hs:32:1: Warning:
        +    the 'stdcall' calling convention is unsupported on this platform,
        +    treating as ccall
        +    When checking declaration:
        +      foreign import stdcall safe "dynamic" d64
        +        :: FunPtr (IO Int64) -> IO Int64
        *** unexpected failure for cc004(normal)
        

and 

        Wrong exit code (expected 0 , actual 1 )
        Stdout:
        
        Stderr:
        cgrun051: OK
        
        *** unexpected failure for cgrun051(normal)

(https://s3.amazonaws.com/archive.travis-ci.org/jobs/24347514/log.txt)


ghc-7.8:

Unexpected failures:
   annotations/should_compile/th  annth_compunits [bad exit code] (normal)
   annotations/should_compile/th  annth_make [bad stdout] (normal)

Please merge 0fe726829d468badf830dd82bc296832d709733b into ghc-7.8 (this
annotates the tests to require have_dynamic())


Greetings,
Joachim
-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From ghc at abacathoo.org  Sun May  4 08:34:16 2014
From: ghc at abacathoo.org (William Kenyon)
Date: Sun, 4 May 2014 09:34:16 +0100
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
 <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
Message-ID: <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>

I tested my patch on an old 32 bit laptop over night and it didn't work.
I think it's best to revert Simon's patch and let him fix it when he gets
chance.

On 3 May 2014 12:59, William Kenyon <ghc at abacathoo.org> wrote:

> I think this should fix the problem.
> It certainly doesn't break anything on a 64 bit machine,
> and should fix the problem on a 32 bit machine (although I can't test that)
>
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From ptrommler at me.com  Sun May  4 09:18:39 2014
From: ptrommler at me.com (Peter Trommler)
Date: Sun, 04 May 2014 11:18:39 +0200
Subject: [PATCH] make UNREG build as a platform with 0 hardware registers
In-Reply-To: <1398938602-16939-1-git-send-email-slyich@gmail.com>
References: <1398938602-16939-1-git-send-email-slyich@gmail.com>
Message-ID: <ACCD4797-2603-414C-9C03-5353D3EF82F1@me.com>

Ticket #9055 has a patch that uses the MACHREGS_NO_REGS macro
coming from compiler/codeGen/Platform/NoRegs.hs.

I think globalRegMaybe should depend on the target platform of the code to be generated
and not on the host platform. Using the NO_REGS macro does the latter. I am thinking
of cross-compilation here, but I might be missing something major.

Peter

On 01 May 2014, at 12:03, slyich at gmail.com wrote:

> From: Sergei Trofimovich <slyfox at gentoo.org>
> 
> 83a003fcaec93dbfd5b46837f2bf3353412b9877 introduced optimization
> which likes to know if a reg is a hardware reg via 'globalRegMaybe':
> 
> But --enable-unregisterised does not define that function:
> 
>    ghc-stage1: panic! (the 'impossible' happened)
>       (GHC version 7.9.20140419 for x86_64-unknown-linux):
>             globalRegMaybe not defined for this platform
> 
> CC: Simon Marlow <marlowsd at gmail.com>
> Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>
> ---
> includes/CodeGen.Platform.hs | 4 ++++
> 1 file changed, 4 insertions(+)
> 
> diff --git a/includes/CodeGen.Platform.hs b/includes/CodeGen.Platform.hs
> index 3d6dd41..1e7c17d 100644
> --- a/includes/CodeGen.Platform.hs
> +++ b/includes/CodeGen.Platform.hs
> @@ -743,7 +743,11 @@ globalRegMaybe CurrentNursery           = Just (RealRegSingle REG_CurrentNursery
> # endif
> globalRegMaybe _                        = Nothing
> #else
> +# ifdef NO_REGS
> +globalRegMaybe _                        = Nothing
> +# else
> globalRegMaybe = panic "globalRegMaybe not defined for this platform"
> +# endif /* !NO_REGS */
> #endif
> 
> freeReg :: RegNo -> FastBool
> -- 
> 1.9.2
> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From johan.tibell at gmail.com  Sun May  4 10:10:12 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Sun, 4 May 2014 12:10:12 +0200
Subject: Adding atomic primops
Message-ID: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>

Hi,

I found myself needing atomic operations on basic, mutable numeric values.
I wrote a short design doc that I'd like feedback on:

https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops

I will try to implement these for 7.10.

-- Johan
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From afarmer at ittc.ku.edu  Sun May  4 14:53:20 2014
From: afarmer at ittc.ku.edu (Andrew Farmer)
Date: Sun, 4 May 2014 09:53:20 -0500
Subject: C-- specfication
In-Reply-To: <5364C5E1.9030404@student.chalmers.se>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
 <5364C5E1.9030404@student.chalmers.se>
Message-ID: <CAJ14jR_fOYA_0xYi-q4jQ=xYoHSbNvPR6P0xkXUv_P1F+78-NQ@mail.gmail.com>

Are all of these links collected on the GHC wiki somewhere? If not,
would you mind adding them?

I, for one, appreciate a curated list of references like this!

On Sat, May 3, 2014 at 5:33 AM, Arash Rouhani
<rarash at student.chalmers.se> wrote:
> (Sorry Florian, I forgot to "reply to list"!)
>
> Hi Florian!
>
> Forget Cminusminus.org, in my experience it seems to have diverged from the
> GHC version of Cminusminus.
>
> I would recommend these resources
>
> See the top of
> https://github.com/ghc/ghc/blob/master/compiler/cmm/CmmParse.y
> Be ready to occasionally look into
> https://github.com/ghc/ghc/blob/master/includes/Cmm.h
> Edward Yang's blog post is a must-read
> http://blog.ezyang.com/2013/07/no-grammar-no-problem/ (less than a year old)
> You can also get the big picture of Cmm from David Terei's bachelor thesis:
> https://davidterei.com/downloads/papers/terei:2009:honours_thesis.pdf
> 2 years ago, Simon Marlow extended the classical Cmm syntax to make it much
> nicer:
> https://github.com/ghc/ghc/commit/a7c0387d20c1c9994d1100b14fbb8fb4e28a259e
> The commentary (it is kinda outdated in my experience, but worth taking a
> look :)), https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Cmm and
> https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/CmmType
> Read the code! There's a lot of Cmm files and after looking at various parts
> of it for a while parts start to make sense :)
> Shameless plug: You might find sections 4.2 and 4.2.1 from my master thesis
> helpful to understand the difference between arguments and fields.
> http://arashrouhani.com/papers/master-thesis.pdf
>
> And it will take time to learn Cmm. The most unintuitive thing for me that
> took me a while to understand is that there are no function calls in
> "classical" cmm code. The newer syntax allows function calls but you should
> know that they are kind of magical. Hope this helps! :)
>
> (Sorry for giving so many reading references :p)
>
> Cheers,
> Arash
>
>
>
> On 2014-05-03 12:05, Florian Weimer wrote:
>
> I'm looking for a specification of C--.  I can't find it on the
> cminuscminus.org web site, and it's also not included in the release
> tarball.  Does anybody know where to get it?
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From slyich at gmail.com  Sun May  4 15:45:37 2014
From: slyich at gmail.com (Sergei Trofimovich)
Date: Sun, 4 May 2014 18:45:37 +0300
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
 <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
 <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
Message-ID: <20140504184537.57fb8b90@sf>

On Sun, 4 May 2014 09:34:16 +0100
William Kenyon <ghc at abacathoo.org> wrote:

> I tested my patch on an old 32 bit laptop over night and it didn't work.
> I think it's best to revert Simon's patch and let him fix it when he gets
> chance.
> 
> On 3 May 2014 12:59, William Kenyon <ghc at abacathoo.org> wrote:
> 
> > I think this should fix the problem.
> > It certainly doesn't break anything on a 64 bit machine,
> > and should fix the problem on a 32 bit machine (although I can't test that)

To be more precise the patch hits codegen limitation:

"inplace/bin/ghc-stage1" -static  -H32m -O -optc-march=i686 -opta-march=i686 -optl-Wl,-O1 -optl-Wl,--as-needed -optl-Wl,--hash-style=gnu -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -package-name rts -dcmm-lint      -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen           -O2    -c rts/PrimOps.cmm -o rts/dist/build/PrimOps.o
ghc-stage1: panic! (the 'impossible' happened)
  (GHC version 7.9.20140504 for i386-unknown-linux):
        iselExpr64(i386)
    I64[_cfk::P32 + 60] - %MO_SS_Conv_W32_W64((Hp + 4) - I32[_cfl::I32])

Does it make sense to have 64-bit alloc_limit on 32-bit box?

-- 

  Sergei
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From johan.tibell at gmail.com  Sun May  4 16:06:56 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Sun, 4 May 2014 18:06:56 +0200
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <20140504184537.57fb8b90@sf>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
 <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
 <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
 <20140504184537.57fb8b90@sf>
Message-ID: <CAK-tuPYXfsw96ifSL=waoALAHpOgfN7R19Ycn1grNy0S46EPvw@mail.gmail.com>

On Sun, May 4, 2014 at 5:45 PM, Sergei Trofimovich <slyich at gmail.com> wrote:
>
> Does it make sense to have 64-bit alloc_limit on 32-bit box?
>

I think so. You allocate 2^32 bytes pretty quickly.
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From iavor.diatchki at gmail.com  Sun May  4 17:12:49 2014
From: iavor.diatchki at gmail.com (Iavor Diatchki)
Date: Sun, 4 May 2014 10:12:49 -0700
Subject: Branch cleanup coming soon - please take inventory
In-Reply-To: <CAEs96n2QvvBPo0g8fWu-mKqmJBOBr_6YTrBNw+VLX_wWd+pOXA@mail.gmail.com>
References: <CAEs96n2QvvBPo0g8fWu-mKqmJBOBr_6YTrBNw+VLX_wWd+pOXA@mail.gmail.com>
Message-ID: <CAGK9nuo28u1NS_yoa1GV8vD5ri86BmzrQ1OtgyQft8WkCw-wVA@mail.gmail.com>

Hi,

good idea!  I've been thinking I should clean up my branches :)   I updated
the wiki to reflect the state of the branches I know about.  In short
`wip/ext-solver` + `master` subsumes all of: `type-nats`,
`type-nats-simple`, and `decision-procedure`.

Cheers,
Iavor


On Wed, Apr 30, 2014 at 6:33 AM, Austin Seipp <austin at well-typed.com> wrote:

> Hello all,
>
> I was talking about this on IRC the other day, and it reminded me I
> wanted to do this a while back.
>
> At the moment, we have a *lot* of branches hanging out in the GHC tree:
>
> $ git branch -r | grep origin | wc -l
> 89
> $
>
> So I'd like to start deleting all the old ones that are merged and
> don't need to hang around.
>
> A while back I kept a list that was curated of what branches were dead
> and could be removed. Here it is:
>
> https://ghc.haskell.org/trac/ghc/wiki/ActiveBranches
>
> This page is a bit out of date, but still many of the comments are
> accurate, particularly what can already be deleted.
>
> I will likely be *deleting* these merged branches soon unless someone
> speaks up. Note that:
>
>   - Anything I cannot be 100% certain is merged will stay.
>   - Anything which is effectively 'in-limbo' (like local-gc, or
> supercompiler) will stay.
>
> We also have a lot of WIP branches here too. If you all would all take
> inventory of your branches and make sure they're catalogued on that
> page, it would be really nice. Just add it for now - I'll get rid of
> the old entries once I delete them later.
>
> --
> Regards,
>
> Austin Seipp, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From ghc at abacathoo.org  Sun May  4 17:50:59 2014
From: ghc at abacathoo.org (William Kenyon)
Date: Sun, 4 May 2014 17:50:59 +0000
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <CAK-tuPYXfsw96ifSL=waoALAHpOgfN7R19Ycn1grNy0S46EPvw@mail.gmail.com>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
 <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
 <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
 <20140504184537.57fb8b90@sf>
 <CAK-tuPYXfsw96ifSL=waoALAHpOgfN7R19Ycn1grNy0S46EPvw@mail.gmail.com>
Message-ID: <CAFtUKHppC2dnPw9xGRxLxL8rGUYLZz5kqn8JiG+3qg2=3Oi=HA@mail.gmail.com>

According to google,

2^32 bytes = 4GB,

I think that is more memory than a 32 bit machine can handle anyway?

Maybe alloc_limit should be 32 bits on a 32 bit machine, and 64 bit on a 64
bit machine?


On 4 May 2014 16:06, Johan Tibell <johan.tibell at gmail.com> wrote:

> On Sun, May 4, 2014 at 5:45 PM, Sergei Trofimovich <slyich at gmail.com>wrote:
>>
>> Does it make sense to have 64-bit alloc_limit on 32-bit box?
>>
>
> I think so. You allocate 2^32 bytes pretty quickly.
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From johan.tibell at gmail.com  Sun May  4 17:54:19 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Sun, 4 May 2014 19:54:19 +0200
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <CAFtUKHppC2dnPw9xGRxLxL8rGUYLZz5kqn8JiG+3qg2=3Oi=HA@mail.gmail.com>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
 <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
 <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
 <20140504184537.57fb8b90@sf>
 <CAK-tuPYXfsw96ifSL=waoALAHpOgfN7R19Ycn1grNy0S46EPvw@mail.gmail.com>
 <CAFtUKHppC2dnPw9xGRxLxL8rGUYLZz5kqn8JiG+3qg2=3Oi=HA@mail.gmail.com>
Message-ID: <CAK-tuPaMJh3yMxbhmY0B3Gx+j9TqpeANCz-WEvXiJUkq8kzthQ@mail.gmail.com>

I thought the limit was the total amount allocated, not the amount live.


On Sun, May 4, 2014 at 7:50 PM, William Kenyon <ghc at abacathoo.org> wrote:

> According to google,
>
> 2^32 bytes = 4GB,
>
> I think that is more memory than a 32 bit machine can handle anyway?
>
> Maybe alloc_limit should be 32 bits on a 32 bit machine, and 64 bit on a
> 64 bit machine?
>
>
> On 4 May 2014 16:06, Johan Tibell <johan.tibell at gmail.com> wrote:
>
>> On Sun, May 4, 2014 at 5:45 PM, Sergei Trofimovich <slyich at gmail.com>wrote:
>>>
>>> Does it make sense to have 64-bit alloc_limit on 32-bit box?
>>>
>>
>> I think so. You allocate 2^32 bytes pretty quickly.
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>
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From ghc at abacathoo.org  Sun May  4 17:54:52 2014
From: ghc at abacathoo.org (William Kenyon)
Date: Sun, 4 May 2014 17:54:52 +0000
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <CAFtUKHppC2dnPw9xGRxLxL8rGUYLZz5kqn8JiG+3qg2=3Oi=HA@mail.gmail.com>
References: <20140502135022.821402416A@ghc.haskell.org>
 <53648D53.9000601@fuuzetsu.co.uk>
 <CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>
 <CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
 <20140504184537.57fb8b90@sf>
 <CAK-tuPYXfsw96ifSL=waoALAHpOgfN7R19Ycn1grNy0S46EPvw@mail.gmail.com>
 <CAFtUKHppC2dnPw9xGRxLxL8rGUYLZz5kqn8JiG+3qg2=3Oi=HA@mail.gmail.com>
Message-ID: <CAFtUKHor3dB7pj4dSW07dpnieqQGa8HX_fkxPDiMLcWpk456Wg@mail.gmail.com>

On second thoughts, alloc_limit needs to be signed.

>     * This is an integer, because we might update it in a place where

  >     * it isn't convenient to raise the exception, so we want it to

  >     * stay negative until we get around to checking it.


This only leaves 2^31 bytes = 2GB.

I suppose the problem is more complex than I thought.


On 4 May 2014 17:50, William Kenyon <ghc at abacathoo.org> wrote:

> According to google,
>
> 2^32 bytes = 4GB,
>
> I think that is more memory than a 32 bit machine can handle anyway?
>
> Maybe alloc_limit should be 32 bits on a 32 bit machine, and 64 bit on a
> 64 bit machine?
>
>
> On 4 May 2014 16:06, Johan Tibell <johan.tibell at gmail.com> wrote:
>
>> On Sun, May 4, 2014 at 5:45 PM, Sergei Trofimovich <slyich at gmail.com>wrote:
>>>
>>> Does it make sense to have 64-bit alloc_limit on 32-bit box?
>>>
>>
>> I think so. You allocate 2^32 bytes pretty quickly.
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>
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From rarash at student.chalmers.se  Sun May  4 18:54:25 2014
From: rarash at student.chalmers.se (Arash Rouhani)
Date: Sun, 4 May 2014 20:54:25 +0200
Subject: C-- specfication
In-Reply-To: <CAJ14jR_fOYA_0xYi-q4jQ=xYoHSbNvPR6P0xkXUv_P1F+78-NQ@mail.gmail.com>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>	<5364C5E1.9030404@student.chalmers.se>
 <CAJ14jR_fOYA_0xYi-q4jQ=xYoHSbNvPR6P0xkXUv_P1F+78-NQ@mail.gmail.com>
Message-ID: <53668CE1.6050506@student.chalmers.se>

Hi Andrew,

Thanks for the encouragement! :)

I went ahead and updated the wiki and incorporated my links. I also gave 
some more guidelines for each link. [1]

Cheers,
Arash



[1]: https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Cmm

On 2014-05-04 16:53, Andrew Farmer wrote:
> Are all of these links collected on the GHC wiki somewhere? If not,
> would you mind adding them?
>
> I, for one, appreciate a curated list of references like this!
>
> On Sat, May 3, 2014 at 5:33 AM, Arash Rouhani
> <rarash at student.chalmers.se> wrote:
>> (Sorry Florian, I forgot to "reply to list"!)
>>
>> Hi Florian!
>>
>> Forget Cminusminus.org, in my experience it seems to have diverged from the
>> GHC version of Cminusminus.
>>
>> I would recommend these resources
>>
>> See the top of
>> https://github.com/ghc/ghc/blob/master/compiler/cmm/CmmParse.y
>> Be ready to occasionally look into
>> https://github.com/ghc/ghc/blob/master/includes/Cmm.h
>> Edward Yang's blog post is a must-read
>> http://blog.ezyang.com/2013/07/no-grammar-no-problem/ (less than a year old)
>> You can also get the big picture of Cmm from David Terei's bachelor thesis:
>> https://davidterei.com/downloads/papers/terei:2009:honours_thesis.pdf
>> 2 years ago, Simon Marlow extended the classical Cmm syntax to make it much
>> nicer:
>> https://github.com/ghc/ghc/commit/a7c0387d20c1c9994d1100b14fbb8fb4e28a259e
>> The commentary (it is kinda outdated in my experience, but worth taking a
>> look :)), https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Cmm and
>> https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/CmmType
>> Read the code! There's a lot of Cmm files and after looking at various parts
>> of it for a while parts start to make sense :)
>> Shameless plug: You might find sections 4.2 and 4.2.1 from my master thesis
>> helpful to understand the difference between arguments and fields.
>> http://arashrouhani.com/papers/master-thesis.pdf
>>
>> And it will take time to learn Cmm. The most unintuitive thing for me that
>> took me a while to understand is that there are no function calls in
>> "classical" cmm code. The newer syntax allows function calls but you should
>> know that they are kind of magical. Hope this helps! :)
>>
>> (Sorry for giving so many reading references :p)
>>
>> Cheers,
>> Arash
>>
>>
>>
>> On 2014-05-03 12:05, Florian Weimer wrote:
>>
>> I'm looking for a specification of C--.  I can't find it on the
>> cminuscminus.org web site, and it's also not included in the release
>> tarball.  Does anybody know where to get it?
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>


From marlowsd at gmail.com  Sun May  4 19:36:44 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Sun, 04 May 2014 20:36:44 +0100
Subject: [commit: ghc] master: Per-thread allocation counters and limits
 (b0534f7)
In-Reply-To: <20140504184537.57fb8b90@sf>
References: <20140502135022.821402416A@ghc.haskell.org>	<53648D53.9000601@fuuzetsu.co.uk>	<CAFtUKHqo=5OjOu2k_giLGoSf259fBnsO2yrXFyY-n8DUqaaeyQ@mail.gmail.com>	<CAFtUKHqUX7-eorJAERMTxaHf_taSO3x-5UHwEo0-LjY77ehpJg@mail.gmail.com>
 <20140504184537.57fb8b90@sf>
Message-ID: <536696CC.9000004@gmail.com>

On 04/05/14 16:45, Sergei Trofimovich wrote:
> On Sun, 4 May 2014 09:34:16 +0100
> William Kenyon <ghc at abacathoo.org> wrote:
>
>> I tested my patch on an old 32 bit laptop over night and it didn't work.
>> I think it's best to revert Simon's patch and let him fix it when he gets
>> chance.
>>
>> On 3 May 2014 12:59, William Kenyon <ghc at abacathoo.org> wrote:
>>
>>> I think this should fix the problem.
>>> It certainly doesn't break anything on a 64 bit machine,
>>> and should fix the problem on a 32 bit machine (although I can't test that)
>
> To be more precise the patch hits codegen limitation:
>
> "inplace/bin/ghc-stage1" -static  -H32m -O -optc-march=i686 -opta-march=i686 -optl-Wl,-O1 -optl-Wl,--as-needed -optl-Wl,--hash-style=gnu -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS -package-name rts -dcmm-lint      -i -irts -irts/dist/build -irts/dist/build/autogen -Irts/dist/build -Irts/dist/build/autogen           -O2    -c rts/PrimOps.cmm -o rts/dist/build/PrimOps.o
> ghc-stage1: panic! (the 'impossible' happened)
>    (GHC version 7.9.20140504 for i386-unknown-linux):
>          iselExpr64(i386)
>      I64[_cfk::P32 + 60] - %MO_SS_Conv_W32_W64((Hp + 4) - I32[_cfl::I32])
>
> Does it make sense to have 64-bit alloc_limit on 32-bit box?

Sorry about this, just validating a revert patch to fix the builds while 
I figure out how to fix the breakage on 32-bit machines.  The alloc 
limit needs to be 64 bits, even on 32-bit machines.

Cheers,
Simon



From jwlato at gmail.com  Sun May  4 22:32:44 2014
From: jwlato at gmail.com (John Lato)
Date: Sun, 4 May 2014 15:32:44 -0700
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
Message-ID: <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>

Hello,

IMHO I think the desire to include these features is leading to a slightly
cavalier attitude towards reordering concerns.  Even assuming that the Cmm
code generator doesn't reorder reads/writes around `CallishMachOp`, I don't
see why this behavior should always be true, leading to possible future
pain.  Also, it's possible that LLVM may decide to reorder memory accesses
AIUI because the underlying LLVM variables won't be synchronized.

In a nutshell, even though everything may work now I suspect it'll become
an ill-specified mess in a few years time.  I don't have a ton of
experience implementing these sorts of features in compilers though, so
probably only worth a half cent.

John L.
On May 4, 2014 3:10 AM, "Johan Tibell" <johan.tibell at gmail.com> wrote:

> Hi,
>
> I found myself needing atomic operations on basic, mutable numeric values.
> I wrote a short design doc that I'd like feedback on:
>
> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
>
> I will try to implement these for 7.10.
>
> -- Johan
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From rrnewton at gmail.com  Mon May  5 01:34:51 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Sun, 4 May 2014 21:34:51 -0400
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
Message-ID: <CACYs5AYbBpCSj=gwOLEXAujv65rKTciJGz-v5qg0co48vyu5Uw@mail.gmail.com>

This would be fantastic and I'd be happy to work with you to expose the
extra ops through the atomic-primops pkg.

This would continue our trend of supporting gcc intrinsic style atomics
(full fence, no configurabilit of the memory model a la lllvm).

These word sized ops are most important, but ultimately there are the other
sizes to support as well -- even 128 bit.

On Sunday, May 4, 2014, Johan Tibell <johan.tibell at gmail.com> wrote:

> Hi,
>
> I found myself needing atomic operations on basic, mutable numeric values.
> I wrote a short design doc that I'd like feedback on:
>
> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
>
> I will try to implement these for 7.10.
>
> -- Johan
>
>

-- 
Sent from Gmail Mobile
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From carter.schonwald at gmail.com  Mon May  5 03:14:54 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Sun, 4 May 2014 23:14:54 -0400
Subject: Adding atomic primops
In-Reply-To: <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
Message-ID: <CAHYVw0yrrA0qhj_GeqkJe8dSoJz5PwyN+-YNmHhJhmUdVdLg3g@mail.gmail.com>

ryan, any thoughts on the (valid!) concern John Lato raises?

I know you mentioned fighting ghc optimizations when writing concurrent
code a while ago, and i believe I asked if you could document the issues
some time so we can all think about how to make the sitch easier, could you
share your thoughts?

AFAIK, there isn't a clear "this is the memory ordering rules" even in an
informal sense for ghc core / stg / cmm, and maybe we need to pin down some
"informal" guarantees we want to hold?

-Carter


On Sun, May 4, 2014 at 6:32 PM, John Lato <jwlato at gmail.com> wrote:

> Hello,
>
> IMHO I think the desire to include these features is leading to a slightly
> cavalier attitude towards reordering concerns.  Even assuming that the Cmm
> code generator doesn't reorder reads/writes around `CallishMachOp`, I don't
> see why this behavior should always be true, leading to possible future
> pain.  Also, it's possible that LLVM may decide to reorder memory accesses
> AIUI because the underlying LLVM variables won't be synchronized.
>
> In a nutshell, even though everything may work now I suspect it'll become
> an ill-specified mess in a few years time.  I don't have a ton of
> experience implementing these sorts of features in compilers though, so
> probably only worth a half cent.
>
> John L.
> On May 4, 2014 3:10 AM, "Johan Tibell" <johan.tibell at gmail.com> wrote:
>
>> Hi,
>>
>> I found myself needing atomic operations on basic, mutable numeric
>> values. I wrote a short design doc that I'd like feedback on:
>>
>> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
>>
>> I will try to implement these for 7.10.
>>
>> -- Johan
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From rrnewton at gmail.com  Mon May  5 04:18:07 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Mon, 5 May 2014 00:18:07 -0400
Subject: Adding atomic primops
In-Reply-To: <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
Message-ID: <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>

Hi John & Carter,

Deferring for a moment issues with CAS on lazy/pointer values, which
pertain to Carter's question, I want to understand the ordering concern WRT
only the "IntArray" primops that Johan listed.  First, to my knowledge GHC
doesn't do any reordering of effectful memory operations (e.g.
readMutVar/writeMutVar).  That is, I thought that threaded "State#" param
was ironclad from the compiler's point of view.  (In fact, if GHC does any
optimization of these imperative bits, could someone point me to it?)

For Johan's primops to work, each primop must represent a full memory fence
that is respected both by the architecture, and by *both* compilers (GHC &
LLVM).  Since I don't think GHC is a problem, let's talk about LLVM.  We
need to verify that LLVM understands not to float regular loads and stores
past one of its own atomic instructions.  If that is the case (even without
anything being marked "volatile"), then I think we are in ok shape, right?

In the grand scheme of things isn't this a place where purity has done us
good?  All the memory traffic related to pure computation is and should be
separate from these primops on mutable vars and arrays, and there shouldn't
need to be any special ordering constraints *between* those two classes,
should there?

(Part 2)* CAS on lazy/pointer values* -- this bit *was *an ill-specified
mess to begin with, for sure ;-).  In part, the problem was that it was
somewhat unusual and sussed out other
cabal/GHC<https://github.com/rrnewton/haskell-lockfree/issues/10>
issues
(including a regression in
7.8<https://github.com/rrnewton/haskell-lockfree/issues/28>that I
think is a GHC bug,  but haven't filed yet [where a spurious "!" on
a function arg of "Any" type changes behavior]).  Even once the commitment
was made to use the "ticketed" approach.  (Carter, it's described in this
trac ticket <https://ghc.haskell.org/trac/ghc/ticket/8157>.)

Johan, FYI, I think we should actually backpedal on casMutVar# and
casArray# and not expose a type like the one we have in 7.8:

   MutableArray# s a -> Int# -> a -> a -> State# s -> (# State# s, Int#, a #)


I can't think of any good reason to use it, since we should never trust
that "a" return value -- it's poison, and covering it up successfully
requires careful attention to
NOINLINEs<https://github.com/rrnewton/haskell-lockfree/issues/5>.
 Rather, for 7.10, better to commit directly IMHO to the "Any" type to beat
back the compiler:

  casMutVarTicketed# :: MutVar# RealWorld a -> Any a -> Any a ->
               State# RealWorld -> (# State# RealWorld, Int#, Any a #)

Cheers,
  -Ryan




> IMHO I think the desire to include these features is leading to a slightly
> cavalier attitude towards reordering concerns.  Even assuming that the Cmm
> code generator doesn't reorder reads/writes around `CallishMachOp`, I don't
> see why this behavior should always be true, leading to possible future
> pain.  Also, it's possible that LLVM may decide to reorder memory accesses
> AIUI because the underlying LLVM variables won't be synchronized.
>
> In a nutshell, even though everything may work now I suspect it'll become
> an ill-specified mess in a few years time.  I don't have a ton of
> experience implementing these sorts of features in compilers though, so
> probably only worth a half cent.
>
> John L.
> On May 4, 2014 3:10 AM, "Johan Tibell" <johan.tibell at gmail.com> wrote:
>
>> Hi,
>>
>> I found myself needing atomic operations on basic, mutable numeric
>> values. I wrote a short design doc that I'd like feedback on:
>>
>> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
>>
>> I will try to implement these for 7.10.
>>
>> -- Johan
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From rrnewton at gmail.com  Mon May  5 04:25:53 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Mon, 5 May 2014 00:25:53 -0400
Subject: Adding atomic primops
In-Reply-To: <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
 <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
Message-ID: <CACYs5AZfCt2xMSbmbfwXx91XghKfUZ-3Zn9rzSPGGBQQoBEf5Q@mail.gmail.com>

>
> For Johan's primops to work, each primop must represent a full memory
> fence that is respected both by the architecture, and by *both* compilers
> (GHC & LLVM).  Since I don't think GHC is a problem, let's talk about LLVM.
>  We need to verify that LLVM understands not to float regular loads and
> stores past one of its own atomic instructions.  If that is the case (even
> without anything being marked "volatile"), then I think we are in ok shape,
> right?
>

Clarification -- this is assuming we're using the "SequentiallyConsistent"
setting in the LLVM backend to get full fences on each op, which correspond
to the gcc-compatible __sync_* builtins:

   http://llvm.org/docs/Atomics.html#sequentiallyconsistent
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From rrnewton at gmail.com  Mon May  5 04:46:26 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Mon, 5 May 2014 00:46:26 -0400
Subject: Adding atomic primops
In-Reply-To: <CACYs5AZfCt2xMSbmbfwXx91XghKfUZ-3Zn9rzSPGGBQQoBEf5Q@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
 <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
 <CACYs5AZfCt2xMSbmbfwXx91XghKfUZ-3Zn9rzSPGGBQQoBEf5Q@mail.gmail.com>
Message-ID: <CACYs5AYetqpLzS45uqrmeHbGYZnHhJm53jKMGSbZUW0WRg3JUQ@mail.gmail.com>

One last comment -- none of the above is to suggest that I don't think we
should eventually have a memory model (a la Java or C++11).  But I (and
Johan) don't think the addition of the primops Johan listed should wait on
it.  Further, I don't think these primops make the state of affairs any
worse, given that we've *already* had the combination of IORef operations &
parallel IO Threads for a long time, without a memory model.

I think the informal agreement we've been muddling along with is something
like this:

   - IORef operations have the same behavior as the analogous C operations
   -- no implied synchronization
   - all IORef ops are "volatile" wrt GHC (GHC won't reordered)
   - atomicModifyIORef does what its name implies

Though I confess, I'm personally unclear on what the agreement is in at
least two places:

   - What Haskell operations constitute grabbing a "lock" to protect IORef
   reads and writes?  (We often use MVar based strategies for locking, but do
   they give a *guarantee* that they provide the necessary memory fences
   for the previous/subsequent IORef operations?)
   - Is the de-facto "volatile" status I implied before extended to the
   backends (C / LLVM)?  I don't know but assume not.  Note that even if not,
   this doesn't cause a problem for the proposed atomic primops, all of which
   are themselves

Perhaps I and others get away with this level of murkiness because we
depend on IORefs so little, with so much happening in the pure code ;-).

Ah, and last of all -- while we do need to sort out all this stuff -- I
want to point out that adding Johan's proposed primops isn't the key
decision point.  That ship sailed with 7.2 ;-).  This is just about
fleshing out what's already there (e.g. fetch and Xor in addition to fetch
and Add) and improving the implementations by going to in-line primops.

Best,
  -Ryan


On Mon, May 5, 2014 at 12:25 AM, Ryan Newton <rrnewton at gmail.com> wrote:

> For Johan's primops to work, each primop must represent a full memory
>> fence that is respected both by the architecture, and by *both*compilers (GHC & LLVM).  Since I don't think GHC is a problem, let's talk
>> about LLVM.  We need to verify that LLVM understands not to float regular
>> loads and stores past one of its own atomic instructions.  If that is the
>> case (even without anything being marked "volatile"), then I think we are
>> in ok shape, right?
>>
>
> Clarification -- this is assuming we're using the "SequentiallyConsistent"
> setting in the LLVM backend to get full fences on each op, which correspond
> to the gcc-compatible __sync_* builtins:
>
>    http://llvm.org/docs/Atomics.html#sequentiallyconsistent
>
>
>
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From carter.schonwald at gmail.com  Mon May  5 04:59:26 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Mon, 5 May 2014 00:59:26 -0400
Subject: Adding atomic primops
In-Reply-To: <CACYs5AYetqpLzS45uqrmeHbGYZnHhJm53jKMGSbZUW0WRg3JUQ@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
 <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
 <CACYs5AZfCt2xMSbmbfwXx91XghKfUZ-3Zn9rzSPGGBQQoBEf5Q@mail.gmail.com>
 <CACYs5AYetqpLzS45uqrmeHbGYZnHhJm53jKMGSbZUW0WRg3JUQ@mail.gmail.com>
Message-ID: <CAHYVw0w0bd6D0HiVTiaFa2ucPZmv2FbNbc7wgJJ9YUNCOfRiCw@mail.gmail.com>

what sailed in ghc 7.2?


On Mon, May 5, 2014 at 12:46 AM, Ryan Newton <rrnewton at gmail.com> wrote:

> One last comment -- none of the above is to suggest that I don't think we
> should eventually have a memory model (a la Java or C++11).  But I (and
> Johan) don't think the addition of the primops Johan listed should wait on
> it.  Further, I don't think these primops make the state of affairs any
> worse, given that we've *already* had the combination of IORef operations
> & parallel IO Threads for a long time, without a memory model.
>
> I think the informal agreement we've been muddling along with is something
> like this:
>
>    - IORef operations have the same behavior as the analogous C
>    operations -- no implied synchronization
>    - all IORef ops are "volatile" wrt GHC (GHC won't reordered)
>    - atomicModifyIORef does what its name implies
>
> Though I confess, I'm personally unclear on what the agreement is in at
> least two places:
>
>    - What Haskell operations constitute grabbing a "lock" to protect
>    IORef reads and writes?  (We often use MVar based strategies for locking,
>    but do they give a *guarantee* that they provide the necessary memory
>    fences for the previous/subsequent IORef operations?)
>    - Is the de-facto "volatile" status I implied before extended to the
>    backends (C / LLVM)?  I don't know but assume not.  Note that even if not,
>    this doesn't cause a problem for the proposed atomic primops, all of which
>    are themselves
>
> Perhaps I and others get away with this level of murkiness because we
> depend on IORefs so little, with so much happening in the pure code ;-).
>
> Ah, and last of all -- while we do need to sort out all this stuff -- I
> want to point out that adding Johan's proposed primops isn't the key
> decision point.  That ship sailed with 7.2 ;-).  This is just about
> fleshing out what's already there (e.g. fetch and Xor in addition to fetch
> and Add) and improving the implementations by going to in-line primops.
>
> Best,
>   -Ryan
>
>
> On Mon, May 5, 2014 at 12:25 AM, Ryan Newton <rrnewton at gmail.com> wrote:
>
>> For Johan's primops to work, each primop must represent a full memory
>>> fence that is respected both by the architecture, and by *both*compilers (GHC & LLVM).  Since I don't think GHC is a problem, let's talk
>>> about LLVM.  We need to verify that LLVM understands not to float regular
>>> loads and stores past one of its own atomic instructions.  If that is the
>>> case (even without anything being marked "volatile"), then I think we are
>>> in ok shape, right?
>>>
>>
>> Clarification -- this is assuming we're using the
>> "SequentiallyConsistent" setting in the LLVM backend to get full fences on
>> each op, which correspond to the gcc-compatible __sync_* builtins:
>>
>>    http://llvm.org/docs/Atomics.html#sequentiallyconsistent
>>
>>
>>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From rrnewton at gmail.com  Mon May  5 05:04:08 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Mon, 5 May 2014 01:04:08 -0400
Subject: Adding atomic primops
In-Reply-To: <CAHYVw0w0bd6D0HiVTiaFa2ucPZmv2FbNbc7wgJJ9YUNCOfRiCw@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
 <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
 <CACYs5AZfCt2xMSbmbfwXx91XghKfUZ-3Zn9rzSPGGBQQoBEf5Q@mail.gmail.com>
 <CACYs5AYetqpLzS45uqrmeHbGYZnHhJm53jKMGSbZUW0WRg3JUQ@mail.gmail.com>
 <CAHYVw0w0bd6D0HiVTiaFa2ucPZmv2FbNbc7wgJJ9YUNCOfRiCw@mail.gmail.com>
Message-ID: <CACYs5AbCEH0FAMGFBeGQSg2TmwhCrXucKnWdU_Bx_KE2roN_Ag@mail.gmail.com>

Oh, just the first CAS primop -- the initial decision to include these
kinds of ops.

Sent from my phone.
On May 5, 2014 12:59 AM, "Carter Schonwald" <carter.schonwald at gmail.com>
wrote:

> what sailed in ghc 7.2?
>
>
> On Mon, May 5, 2014 at 12:46 AM, Ryan Newton <rrnewton at gmail.com> wrote:
>
>> One last comment -- none of the above is to suggest that I don't think we
>> should eventually have a memory model (a la Java or C++11).  But I (and
>> Johan) don't think the addition of the primops Johan listed should wait on
>> it.  Further, I don't think these primops make the state of affairs any
>> worse, given that we've *already* had the combination of IORef
>> operations & parallel IO Threads for a long time, without a memory model.
>>
>> I think the informal agreement we've been muddling along with is
>> something like this:
>>
>>    - IORef operations have the same behavior as the analogous C
>>    operations -- no implied synchronization
>>    - all IORef ops are "volatile" wrt GHC (GHC won't reordered)
>>    - atomicModifyIORef does what its name implies
>>
>> Though I confess, I'm personally unclear on what the agreement is in at
>> least two places:
>>
>>    - What Haskell operations constitute grabbing a "lock" to protect
>>    IORef reads and writes?  (We often use MVar based strategies for locking,
>>    but do they give a *guarantee* that they provide the necessary memory
>>    fences for the previous/subsequent IORef operations?)
>>    - Is the de-facto "volatile" status I implied before extended to the
>>    backends (C / LLVM)?  I don't know but assume not.  Note that even if not,
>>    this doesn't cause a problem for the proposed atomic primops, all of which
>>    are themselves
>>
>> Perhaps I and others get away with this level of murkiness because we
>> depend on IORefs so little, with so much happening in the pure code ;-).
>>
>> Ah, and last of all -- while we do need to sort out all this stuff -- I
>> want to point out that adding Johan's proposed primops isn't the key
>> decision point.  That ship sailed with 7.2 ;-).  This is just about
>> fleshing out what's already there (e.g. fetch and Xor in addition to fetch
>> and Add) and improving the implementations by going to in-line primops.
>>
>> Best,
>>   -Ryan
>>
>>
>> On Mon, May 5, 2014 at 12:25 AM, Ryan Newton <rrnewton at gmail.com> wrote:
>>
>>> For Johan's primops to work, each primop must represent a full memory
>>>> fence that is respected both by the architecture, and by *both*compilers (GHC & LLVM).  Since I don't think GHC is a problem, let's talk
>>>> about LLVM.  We need to verify that LLVM understands not to float regular
>>>> loads and stores past one of its own atomic instructions.  If that is the
>>>> case (even without anything being marked "volatile"), then I think we are
>>>> in ok shape, right?
>>>>
>>>
>>> Clarification -- this is assuming we're using the
>>> "SequentiallyConsistent" setting in the LLVM backend to get full fences on
>>> each op, which correspond to the gcc-compatible __sync_* builtins:
>>>
>>>    http://llvm.org/docs/Atomics.html#sequentiallyconsistent
>>>
>>>
>>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>
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From jwlato at gmail.com  Mon May  5 06:17:41 2014
From: jwlato at gmail.com (John Lato)
Date: Sun, 4 May 2014 23:17:41 -0700
Subject: Adding atomic primops
In-Reply-To: <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <CAJ727GgmjbXx6oejqD7UswqMN8Kdmhxo-d66Goy-9EdmjDOaNA@mail.gmail.com>
 <CACYs5AZJfzVySdYVnVLLYLpRwmSEa8hEh=rTiYsADODHtG2=OQ@mail.gmail.com>
Message-ID: <CAJ727GhxAQKxPcb9bVNbDD-Rro+EWXpOmVJ+yNe4vxzsrY7bWQ@mail.gmail.com>

Hi Ryan,

It's a little late here, but I've tried to put all my thoughts in order on
this topic.

On Sun, May 4, 2014 at 9:18 PM, Ryan Newton <rrnewton at gmail.com> wrote:

> Hi John & Carter,
>
> Deferring for a moment issues with CAS on lazy/pointer values, which
> pertain to Carter's question, I want to understand the ordering concern WRT
> only the "IntArray" primops that Johan listed.  First, to my knowledge GHC
> doesn't do any reordering of effectful memory operations (e.g.
> readMutVar/writeMutVar).  That is, I thought that threaded "State#" param
> was ironclad from the compiler's point of view.  (In fact, if GHC does any
> optimization of these imperative bits, could someone point me to it?)
>

My understanding is that GHC does do reordering of memory operations, in
the CmmSink pass (
http://www.haskell.org/ghc/docs/latest/html/libraries/ghc/src/CmmSink.html,
http://blog.ezyang.com/2014/01/so-you-want-to-add-a-new-concurrency-primitive-to-ghc/).
In particular ghc may currently reorder loads, although it doesn't seem to
reorder stores (at this time).  And ghc *currently* only performs these
reorderings in limited cases.


>
> For Johan's primops to work, each primop must represent a full memory
> fence that is respected both by the architecture, and by *both* compilers
> (GHC & LLVM).  Since I don't think GHC is a problem, let's talk about LLVM.
>  We need to verify that LLVM understands not to float regular loads and
> stores past one of its own atomic instructions.  If that is the case (even
> without anything being marked "volatile"), then I think we are in ok shape,
> right?
>

Provided the operations are SequentiallyConsistent (could probably use
Acquire/Release for reads/writes) I think LLVM will handle this
appropriately.


>
> In the grand scheme of things isn't this a place where purity has done us
> good?  All the memory traffic related to pure computation is and should be
> separate from these primops on mutable vars and arrays, and there shouldn't
> need to be any special ordering constraints *between* those two classes,
> should there?
>

Perhaps.  But it's still important to get ordering right WRT multiple
mutable ops, so I'm not sure that purity actually helps that much, except
that we can get away with underspecified operations moreso than in C++.
(also x86 has a stronger model than other archs, it's possible that we
currently get away with stuff that's unsafe on other platforms)

I have to confess that I don't understand what you mean by suggesting we
should implement these primops without having an underlying memory model.
What does atomicReadIntArray# mean if there's no memory model in which its
defined?  How can you be sure that other ghc hackers won't break some
assumptions that the implementations rely upon, if they don't have a memory
model to describe how operations should behave?  This is strongly related
to the TODO: in Johan's proposal: just because that may be true now (I
don't know if it is!) doesn't mean it will remain so in the future.

Of course, given the limited number of GHC hackers, everything may work out
fine in the end.  It just seems to me that it would be more sensible to
define the semantics first and build the primops around them, rather than
primops first and semantics later.

Best,
John


> (Part 2)* CAS on lazy/pointer values* -- this bit *was *an ill-specified
> mess to begin with, for sure ;-).  In part, the problem was that it was
> somewhat unusual and sussed out other cabal/GHC<https://github.com/rrnewton/haskell-lockfree/issues/10> issues
> (including a regression in 7.8<https://github.com/rrnewton/haskell-lockfree/issues/28>that I think is a GHC bug,  but haven't filed yet [where a spurious "!" on
> a function arg of "Any" type changes behavior]).  Even once the commitment
> was made to use the "ticketed" approach.  (Carter, it's described in this
> trac ticket <https://ghc.haskell.org/trac/ghc/ticket/8157>.)
>
> Johan, FYI, I think we should actually backpedal on casMutVar# and
> casArray# and not expose a type like the one we have in 7.8:
>
>    MutableArray# s a -> Int# -> a -> a -> State# s -> (# State# s, Int#, a #)
>
>
> I can't think of any good reason to use it, since we should never trust
> that "a" return value -- it's poison, and covering it up successfully
> requires careful attention to NOINLINEs<https://github.com/rrnewton/haskell-lockfree/issues/5>.
>  Rather, for 7.10, better to commit directly IMHO to the "Any" type to beat
> back the compiler:
>
>   casMutVarTicketed# :: MutVar# RealWorld a -> Any a -> Any a ->
>                State# RealWorld -> (# State# RealWorld, Int#, Any a #)
>
> Cheers,
>   -Ryan
>
>
>
>
>> IMHO I think the desire to include these features is leading to a
>> slightly cavalier attitude towards reordering concerns.  Even assuming that
>> the Cmm code generator doesn't reorder reads/writes around `CallishMachOp`,
>> I don't see why this behavior should always be true, leading to possible
>> future pain.  Also, it's possible that LLVM may decide to reorder memory
>> accesses AIUI because the underlying LLVM variables won't be synchronized.
>>
>> In a nutshell, even though everything may work now I suspect it'll become
>> an ill-specified mess in a few years time.  I don't have a ton of
>> experience implementing these sorts of features in compilers though, so
>> probably only worth a half cent.
>>
>> John L.
>> On May 4, 2014 3:10 AM, "Johan Tibell" <johan.tibell at gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I found myself needing atomic operations on basic, mutable numeric
>>> values. I wrote a short design doc that I'd like feedback on:
>>>
>>> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
>>>
>>> I will try to implement these for 7.10.
>>>
>>> -- Johan
>>>
>>>
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
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From simonpj at microsoft.com  Mon May  5 08:49:38 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Mon, 5 May 2014 08:49:38 +0000
Subject: C-- specfication
In-Reply-To: <53668CE1.6050506@student.chalmers.se>
References: <87iopntbx4.fsf@mid.deneb.enyo.de>
 <5364C5E1.9030404@student.chalmers.se>
 <CAJ14jR_fOYA_0xYi-q4jQ=xYoHSbNvPR6P0xkXUv_P1F+78-NQ@mail.gmail.com>
 <53668CE1.6050506@student.chalmers.se>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C0B1847@DB3PRD3001MB020.064d.mgd.msft.net>

Thank you Arash!

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Arash
| Rouhani
| Sent: 04 May 2014 19:54
| To: Andrew Farmer
| Cc: ghc-devs at haskell.org
| Subject: Re: C-- specfication
| 
| Hi Andrew,
| 
| Thanks for the encouragement! :)
| 
| I went ahead and updated the wiki and incorporated my links. I also gave
| some more guidelines for each link. [1]
| 
| Cheers,
| Arash
| 
| 
| 
| [1]: https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Cmm
| 
| On 2014-05-04 16:53, Andrew Farmer wrote:
| > Are all of these links collected on the GHC wiki somewhere? If not,
| > would you mind adding them?
| >
| > I, for one, appreciate a curated list of references like this!
| >
| > On Sat, May 3, 2014 at 5:33 AM, Arash Rouhani
| > <rarash at student.chalmers.se> wrote:
| >> (Sorry Florian, I forgot to "reply to list"!)
| >>
| >> Hi Florian!
| >>
| >> Forget Cminusminus.org, in my experience it seems to have diverged
| >> from the GHC version of Cminusminus.
| >>
| >> I would recommend these resources
| >>
| >> See the top of
| >> https://github.com/ghc/ghc/blob/master/compiler/cmm/CmmParse.y
| >> Be ready to occasionally look into
| >> https://github.com/ghc/ghc/blob/master/includes/Cmm.h
| >> Edward Yang's blog post is a must-read
| >> http://blog.ezyang.com/2013/07/no-grammar-no-problem/ (less than a
| >> year old) You can also get the big picture of Cmm from David Terei's
| bachelor thesis:
| >> https://davidterei.com/downloads/papers/terei:2009:honours_thesis.pdf
| >> 2 years ago, Simon Marlow extended the classical Cmm syntax to make
| >> it much
| >> nicer:
| >> https://github.com/ghc/ghc/commit/a7c0387d20c1c9994d1100b14fbb8fb4e28
| >> a259e The commentary (it is kinda outdated in my experience, but
| >> worth taking a look :)),
| >> https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Cmm and
| >> https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/CmmType
| >> Read the code! There's a lot of Cmm files and after looking at
| >> various parts of it for a while parts start to make sense :)
| >> Shameless plug: You might find sections 4.2 and 4.2.1 from my master
| >> thesis helpful to understand the difference between arguments and
| fields.
| >> http://arashrouhani.com/papers/master-thesis.pdf
| >>
| >> And it will take time to learn Cmm. The most unintuitive thing for me
| >> that took me a while to understand is that there are no function
| >> calls in "classical" cmm code. The newer syntax allows function calls
| >> but you should know that they are kind of magical. Hope this helps!
| >> :)
| >>
| >> (Sorry for giving so many reading references :p)
| >>
| >> Cheers,
| >> Arash
| >>
| >>
| >>
| >> On 2014-05-03 12:05, Florian Weimer wrote:
| >>
| >> I'm looking for a specification of C--.  I can't find it on the
| >> cminuscminus.org web site, and it's also not included in the release
| >> tarball.  Does anybody know where to get it?
| >> _______________________________________________
| >> ghc-devs mailing list
| >> ghc-devs at haskell.org
| >> http://www.haskell.org/mailman/listinfo/ghc-devs
| >>
| >>
| >>
| >> _______________________________________________
| >> ghc-devs mailing list
| >> ghc-devs at haskell.org
| >> http://www.haskell.org/mailman/listinfo/ghc-devs
| >>
| 
| _______________________________________________
| ghc-devs mailing list
| ghc-devs at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-devs

From fuuzetsu at fuuzetsu.co.uk  Mon May  5 09:56:30 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Mon, 05 May 2014 11:56:30 +0200
Subject: Adding a dependency to the build system
Message-ID: <5367604E.4040705@fuuzetsu.co.uk>

Hi,

Today I have split Haddock up a little to allow users to use the Haddock
parser without incurring the dependency on GHC. This means the Haddock
tree looks like this now:

haddock/haddock.cabal
haddock/src/?
haddock/haddock-library/haddock-library.cabal
haddock/haddock-library/src/?
haddock/haddock-library/?
haddock/?

For details see [1].

In the haddock.cabal, we now depend on haddock-library. While this works
fine in a regular development scenario, GHC build system needs to be
made aware that it has to build haddock/haddock-library before haddock/.
I tried looking at the build system but it is far too complicated to
comprehend in a reasonable amount of time.

Can someone already familiar with it make the change (in a separate
branch or give me the diff so I can push the Haddock changes while at
the same time updating submodule + build system) or tell me what exactly
needs changing? haddock-library only uses a subset of Haddock's existing
dependencies so there should be no problem on that end.

A workaround would be to simply include haddock-library paths as
additional source locations but I don't like it this approach as it
breaks the ?haddock-library is its own package? abstraction. For
example, this would not work if we ever wanted to move haddock-library
to its own repository.

Thanks!

[1]: https://github.com/Fuuzetsu/haddock/tree/parser-split

-- 
Mateusz K.

From simonpj at microsoft.com  Mon May  5 13:15:19 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Mon, 5 May 2014 13:15:19 +0000
Subject: cgrun051
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C0B2B9E@DB3PRD3001MB020.064d.mgd.msft.net>

I'm getting

Unexpected failures:

   .  cgrun051 [bad exit code] (normal,hpc,optasm,profasm,ghci,threaded1,threaded2,dyn,profthreaded,optllvm,g1)


=====> cgrun051(optasm) 46 of 98 [0, 2, 0]

cd . && '/5playpen/simonpj/HEAD-2/inplace/bin/ghc-stage2' -fforce-recomp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts -fno-ghci-history -o cgrun051 cgrun051.hs -O -fasm   >cgrun051.comp.stderr 2>&1

cd . && ./cgrun051    </dev/null >cgrun051.run.stdout 2>cgrun051.run.stderr

Wrong exit code (expected 0 , actual 1 )


cgrun051 throws an exception, so presumably should have exit code 1.  And it does. But the test seems to test for exit code 0.
Why does the test check for 0 not 1?  And what has changed?
This is HEAD.  I don't have a virgin head right now, but I don't think any of my changes could cause this.
I am also seeing the

   ffi/should_compile     cc004 [stderr mismatch] (normal)
errors that Joachim reported.  It'd be great if someone could fix that, whatever it is.
SImon
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From austin at well-typed.com  Mon May  5 16:54:20 2014
From: austin at well-typed.com (Austin Seipp)
Date: Mon, 5 May 2014 11:54:20 -0500
Subject: Status updates
Message-ID: <CAEs96n0GQcW_hqiFEpgOyZnRdFOk3mYPfzZOBEGvw26f+q0b8A@mail.gmail.com>

Hi all,

 - The HCAR entry was quickly completed last week thanks to everyone,
much appreciated for the quick response! And it made me aware of some
other new things in the pipeline, too. :)

 - Simon is in-progress reviewing the ORF work still. But it's
happening, so be patient of course (it's a large patch after all).

 - After a short discussion last week and a small grace period I
killed external core, and removed all traces of it from the GHC tree.
We constantly add things to GHC as Richard noted, so removing
something was nice, even if a little sad. The result was about 3,000
fewer lines in the source tree.

 - I need to send a patch upstream to Ross for the AMP changes, but I
slacked off a bit since the release of the new transformers got pushed
back, pending some discussions on libraries at haskell.org - I'll be
sending the results to Ross later today.

 - I spent some time working on removing the need for a build from
creation of the source distribution like I mentioned last week - so
'make sdist' almost works out of the box. I believe it works fine, but
it needs some more testing, and I feel like I should float the patch
by for review on the list first, Simon in particular might have
something to say. Do watch this space.

 - I'm going to continue working on trying HEAD with Stackage and
putting the results somewhere, I just sort of left this as is right
now.

Also, remember from last week, the 7.8.3 milestone has been shaped up
to be what we will look at - please do look over the tickets here when
you get a chance! I'll be likely seeing if any new tickets will go
here today:

    https://ghc.haskell.org/trac/ghc/milestone/7.8.3
    https://ghc.haskell.org/trac/ghc/query?status=infoneeded&status=merge&status=new&status=patch&group=status&milestone=7.8.3

Some other things worth noting:

 - It's time to merge up a lot of the patch queue. I'll be doing that
soon - if you floated a patch by and want to discuss it or you want to
make me aware of a patch you have, please let me know. At worst you
will just inform me of something I already knew.

 - Side note, since a few people might be keen to know - Herbert took
the time this week to move darcs.haskell.org onto a new server,
effectively putting it in legacy mode. The switch has not yet
happened, because we need to do a DNS switch.

That's all, it was pretty light this week for me actually! We didn't
actually have a call today yet actually, but we will have one next
week and have more to say for sure.

Do let me know if you have questions.

-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/

From roma at ro-che.info  Mon May  5 17:36:27 2014
From: roma at ro-che.info (Roman Cheplyaka)
Date: Mon, 5 May 2014 20:36:27 +0300
Subject: Status updates
In-Reply-To: <CAEs96n0GQcW_hqiFEpgOyZnRdFOk3mYPfzZOBEGvw26f+q0b8A@mail.gmail.com>
References: <CAEs96n0GQcW_hqiFEpgOyZnRdFOk3mYPfzZOBEGvw26f+q0b8A@mail.gmail.com>
Message-ID: <20140505173627.GA20718@sniper>

Hi Austin,

Could you consider #9012 for 7.8.3?

* Austin Seipp <austin at well-typed.com> [2014-05-05 11:54:20-0500]
> Hi all,
> 
>  - The HCAR entry was quickly completed last week thanks to everyone,
> much appreciated for the quick response! And it made me aware of some
> other new things in the pipeline, too. :)
> 
>  - Simon is in-progress reviewing the ORF work still. But it's
> happening, so be patient of course (it's a large patch after all).
> 
>  - After a short discussion last week and a small grace period I
> killed external core, and removed all traces of it from the GHC tree.
> We constantly add things to GHC as Richard noted, so removing
> something was nice, even if a little sad. The result was about 3,000
> fewer lines in the source tree.
> 
>  - I need to send a patch upstream to Ross for the AMP changes, but I
> slacked off a bit since the release of the new transformers got pushed
> back, pending some discussions on libraries at haskell.org - I'll be
> sending the results to Ross later today.
> 
>  - I spent some time working on removing the need for a build from
> creation of the source distribution like I mentioned last week - so
> 'make sdist' almost works out of the box. I believe it works fine, but
> it needs some more testing, and I feel like I should float the patch
> by for review on the list first, Simon in particular might have
> something to say. Do watch this space.
> 
>  - I'm going to continue working on trying HEAD with Stackage and
> putting the results somewhere, I just sort of left this as is right
> now.
> 
> Also, remember from last week, the 7.8.3 milestone has been shaped up
> to be what we will look at - please do look over the tickets here when
> you get a chance! I'll be likely seeing if any new tickets will go
> here today:
> 
>     https://ghc.haskell.org/trac/ghc/milestone/7.8.3
>     https://ghc.haskell.org/trac/ghc/query?status=infoneeded&status=merge&status=new&status=patch&group=status&milestone=7.8.3
> 
> Some other things worth noting:
> 
>  - It's time to merge up a lot of the patch queue. I'll be doing that
> soon - if you floated a patch by and want to discuss it or you want to
> make me aware of a patch you have, please let me know. At worst you
> will just inform me of something I already knew.
> 
>  - Side note, since a few people might be keen to know - Herbert took
> the time this week to move darcs.haskell.org onto a new server,
> effectively putting it in legacy mode. The switch has not yet
> happened, because we need to do a DNS switch.
> 
> That's all, it was pretty light this week for me actually! We didn't
> actually have a call today yet actually, but we will have one next
> week and have more to say for sure.
> 
> Do let me know if you have questions.
> 
> -- 
> Regards,
> 
> Austin Seipp, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
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From rrnewton at gmail.com  Mon May  5 18:08:39 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Mon, 5 May 2014 14:08:39 -0400
Subject: Adding atomic primops
In-Reply-To: <CAJ727GhxAQKxPcb9bVNbDD-Rro+EWXpOmVJ+yNe4vxzsrY7bWQ@mail.gmail.com>
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Hi John,

My understanding is that GHC does do reordering of memory operations, in
> the CmmSink pass (
> http://www.haskell.org/ghc/docs/latest/html/libraries/ghc/src/CmmSink.html,
>
> http://blog.ezyang.com/2014/01/so-you-want-to-add-a-new-concurrency-primitive-to-ghc/).
> In particular ghc may currently reorder loads, although it doesn't seem to
> reorder stores (at this time).  And ghc *currently* only performs these
> reorderings in limited cases.
>

Thanks!  That's a great summary by ezyang and I hadn't yet read it.

I have to confess that I don't understand what you mean by suggesting we
> should implement these primops without having an underlying memory model.
>

Oh, no, I think we should work on getting as close as possible to said
memory model.  But given how much work it's been for other languages I hope
we can pipeline some of the implementation tasks, at the same time as that
is going on.  For
example, we've got one GSOC working on a concurrent data structure, and it
would be great if they could have a GHC branch to test inlined primops,
even if there is much more work to do to verify the safety of that
prototype before it makes it to the master branch.
 (There's also the social question of getting someone with enough time to
do this memory model -- or port it from other languages.  Suggestions?)


> What does atomicReadIntArray# mean if there's no memory model in which
> its defined?  How can you be sure that other ghc hackers won't break some
> assumptions that the implementations rely upon, if they don't have a memory
> model to describe how operations should behave?  This is strongly related
> to the TODO: in Johan's proposal: just because that may be true now (I
> don't know if it is!) doesn't mean it will remain so in the future.
>

I totally agree.  I'm just not sure where we should go with it.
    I think as a practical matter we need some kind of memory model fuzz
tester for GHC, since we certainly won't have formal verification
throughout the whole compiler.  There's been some neat work on this in the
memory models community, it seems.  It sounds like Jan-Willem also suggests
that there should be invasive changes made to the compiler to reify the
memory model as a DAG of dependencies on the individual operations.

I guess the concrete choice for Johan's proposed changes is to figure out
if its possible to quickly hack the relevant CMM passes that might reorder
(to be primop aware), rather than make the more general improvement that
Jan-Willem suggested in the comments on ezyang's post.

Of course, given the limited number of GHC hackers, everything may work out
> fine in the end.  It just seems to me that it would be more sensible to
> define the semantics first and build the primops around them, rather than
> primops first and semantics later.
>

I think it's a bit of a chicken and egg, because we need to get interesting
enough data structures and libraries to make someone care enough to do this
work ;-).

I think we need a collaboration with someone who does memory model stuff
for a living if we could get them interested or make this into "research"
somehow.
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From marlowsd at gmail.com  Mon May  5 19:33:51 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Mon, 05 May 2014 20:33:51 +0100
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
Message-ID: <5367E79F.3070700@gmail.com>

On 04/05/14 11:10, Johan Tibell wrote:
> I found myself needing atomic operations on basic, mutable numeric
> values. I wrote a short design doc that I'd like feedback on:
>
> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
>
> I will try to implement these for 7.10.

Right now, all CmmUnsafeForeignCalls (this includes CallishMachOps) are 
assumed to read and clobber arbitrary memory, so we won't commute reads 
or writes past them.  We could relax this in the future, so the best 
thing to do would be to write down what semantics you expect (hah, I 
realise how difficult this is! An informal description will have to 
suffice.)

Cheers,
Simon

From marlowsd at gmail.com  Mon May  5 20:54:44 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Mon, 05 May 2014 21:54:44 +0100
Subject: GHC status report
In-Reply-To: <CAHYVw0ykScXsEQDKA4YjR2dDT460o1Jr5bty6u=eOEwnjAa3Qg@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
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Message-ID: <5367FA94.9040206@gmail.com>

I don't see any reason why llvm-general with the shared-llvm flag 
shouldn't work with a statically linked GHCi (7.6.3 or 7.8 with 
DYNAMIC_GHC_PROGRAMS=NO).  Doesn't it work?

On 03/05/14 02:12, Carter Schonwald wrote:
> if theres a way i can patch llvm-general so that i can use it with llvm
> static linked into rather than dylinked, i'm all ears!
>
> llvm-general has to use some C++ wrappers (that in turn use extern "C"
> sections) to make parts of the llvm api accessible from hasskell.
>
> I had trouble following some of the thread earlier today, but is the
> suggestion to try building those wrappers with -fPIC would make them
> play nice?
>
>
> On Fri, May 2, 2014 at 8:52 PM, Dominick Samperi <djsamperi at gmail.com
> <mailto:djsamperi at gmail.com>> wrote:
>
>     I posted a ticket related to this (#8371), but the example provided
>     there
>     has no problems today for all versions of ghci that I tested (including
>     7.6.3), provided -fno-ghci-sandbox is specified. So this problem was
>     clearly related to the threads issue.
>
>     Today there are problems when DYNAMIC_GHC_PROGRAMS=NO, but they
>     happen later, and I have not yet narrowed this down to a small example.
>     Basically, I have an Haskell app that embeds R (as in the sample code
>     attached to the above ticket), but when it tries to do some calculations
>     it seg faults (works fine with 7.8.2).
>
>     On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com
>     <mailto:marlowsd at gmail.com>> wrote:
>      > Can you give me a quick summary of how to reproduce the problem? (not
>      > including the GHC build steps)
>      >
>      > Cheers,
>      > Simon
>      >
>      >
>      > On 02/05/14 18:18, Dominick Samperi wrote:
>      >>
>      >> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
>      >> section of mk/build.mk <http://build.mk> (with BuildFlavour =
>     quick), and set
>      >> DYNAMIC_GHC_PROGRAMS=NO
>      >> in my environment before running configure (just to be sure!). Near
>      >> the end of the build
>      >> I saw some messages like "Warning: vectorization failure," but the
>      >> build completed.
>      >>
>      >> The status at the end of configure doesn't say that dynamic linking
>      >> via RTS has been
>      >> turned off, and I don't know how to check that this is so.
>      >> Nevertheless, I checked
>      >> the linking issue and it is NOT fixed with this build, so
>      >> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>      >> reported by me and others.
>      >>
>      >>
>      >> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com
>     <mailto:marlowsd at gmail.com>> wrote:
>      >>>
>      >>> On 02/05/2014 01:09, Dominick Samperi wrote:
>      >>>
>      >>>> If I understand your last comment correctly linking to libR should
>      >>>> continue to work, even if you revert to static linking of Haskell
>      >>>> compiled
>      >>>> code via RTS linker. Since you say this is the way things have
>     always
>      >>>> been, perhaps the real explanation for why 7.8 fixed the issue
>     is that
>      >>>> some bug was fixed along the way...
>      >>>
>      >>>
>      >>>
>      >>> Indeed.  To know for sure we would have to test 7.8 with
>      >>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do
>     that?
>      >>>
>      >>> Cheers,
>      >>> Simon
>      >>>
>      >>>
>      >>>
>      >>>> Note that R is a C library, so the C++ issues that Carter
>     mentions are
>      >>>> not a factor here.
>      >>>>
>      >>>> Thanks,
>      >>>> Dominick
>      >>>>
>      >>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow
>     <marlowsd at gmail.com <mailto:marlowsd at gmail.com>> wrote:
>      >>>>>
>      >>>>>
>      >>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>      >>>>>>
>      >>>>>>
>      >>>>>>
>      >>>>>> The problem with some graphics libraries used via FFI (and other
>      >>>>>> libraries
>      >>>>>> that are not thread-safe), if I understand the situation
>     correctly, is
>      >>>>>> that ghci
>      >>>>>> forks a thread when it shouldn't, causing some programs to
>      >>>>>> miscalculate
>      >>>>>> the available stack space (because they think there is only one
>      >>>>>> thread).
>      >>>>>
>      >>>>>
>      >>>>>
>      >>>>>>
>      >>>>>>
>      >>>>>> The new dynamic linking support and the flag
>     -fno-ghci-sandbox fixes
>      >>>>>> this problem, and I would not vote for the removal of these
>     features.
>      >>>>>
>      >>>>>
>      >>>>>
>      >>>>>
>      >>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>      >>>>> libraries
>      >>>>> that use thread-local state.  But how is dynamic linking
>     involved here?
>      >>>>> What improved in GHC 7.8 relative to 7.6 for you? And could
>     you clarify
>      >>>>> "miscalculate the available stack space"? What needs to
>     calculate stack
>      >>>>> space? Why? C stack space?
>      >>>>>
>      >>>>> We can certainly make a smoother experience around
>     -fno-ghci-sandbox
>      >>>>> for
>      >>>>> using GUI libraries.
>      >>>>>
>      >>>>>
>      >>>>>> It is not clear to me from Simon's original post how linking
>     to all of
>      >>>>>> those C++ libs can continue to work if dynamic linking is
>     removed
>      >>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>      >>>>>> static linking"?
>      >>>>>
>      >>>>>
>      >>>>>
>      >>>>>
>      >>>>> When I say "revert to static linking" I mean make GHCi static
>     linked,
>      >>>>> and
>      >>>>> have it load Haskell code compiled for static linking using
>     the RTS
>      >>>>> linker
>      >>>>> (like it did in 7.6).  Foreign libraries would still be
>     loaded using
>      >>>>> the
>      >>>>> system linker, as they always have been.
>      >>>>>
>      >>>>> To be clear, I'm not officially proposing that we drop
>     dynamic linking,
>      >>>>> but
>      >>>>> I think it's worthwhile exploring the design space again,
>     given that we
>      >>>>> know
>      >>>>> dynamic linking has been tougher than we expected.
>      >>>>>
>      >>>>> Cheers,
>      >>>>> Simon
>      >>>>>
>      >>>>>
>      >>>>>
>      >>>>>> Thanks,
>      >>>>>> Dominick
>      >>>>>>
>      >>>>>>
>      >>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>      >>>>>> <george.colpitts at gmail.com
>     <mailto:george.colpitts at gmail.com>> wrote:
>      >>>>>>>
>      >>>>>>>
>      >>>>>>>
>      >>>>>>> To elaborate, in the past, I had a lot of problems using
>     libraries
>      >>>>>>> from
>      >>>>>>> the
>      >>>>>>> ghci prompt on the Mac but I haven't tried recently.
>      >>>>>>>
>      >>>>>>> As an example, on the web page for the book the Haskell
>     School of
>      >>>>>>> Expression
>      >>>>>>> it says:
>      >>>>>>>
>      >>>>>>> Note for OS X users: running graphics applications from
>     GHCi is no
>      >>>>>>> longer
>      >>>>>>> supported. Instead, one has to compile a graphics program
>     using GHC
>      >>>>>>> in
>      >>>>>>> order
>      >>>>>>> to run it (see example/GMIExamples.lhs for an example).
>      >>>>>>>
>      >>>>>>> I had similar problems using the Yale Euterpea music
>     program from
>      >>>>>>> ghci.
>      >>>>>>> When
>      >>>>>>> I inquired I was referred to
>      >>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>      >>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
>      >>>>>>> latter
>      >>>>>>> is
>      >>>>>>> now scheduled for 7.10.1
>      >>>>>>>
>      >>>>>>>
>      >>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow
>     <marlowsd at gmail.com <mailto:marlowsd at gmail.com>>
>      >>>>>>> wrote:
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>> It doesn't have anything about the dynamic linking
>     changes made for
>      >>>>>>>>> 7.8.
>      >>>>>>>>> I think it's worth mentioning the improvements we expect
>     to get
>      >>>>>>>>> from
>      >>>>>>>>> that. The highlights of the release notes do mention it,
>     so maybe
>      >>>>>>>>> that
>      >>>>>>>>> suffices.
>      >>>>>>>>>
>      >>>>>>>>> In particular, I'm hoping that it is going to fix a lot
>     of problems
>      >>>>>>>>> with
>      >>>>>>>>> using foreign libraries such as OpenGL from ghci. I could
>     be wrong
>      >>>>>>>>> about
>      >>>>>>>>> that though.
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>> I'd like to understand more about what those problems are.
>       As a
>      >>>>>>>> data
>      >>>>>>>> point, at Facebook we're using static linking (I compiled
>     GHC with
>      >>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50
>     3rd-party C++
>      >>>>>>>> libraries and one gigantic shared library consisting of a
>     ton of
>      >>>>>>>> in-house
>      >>>>>>>> C++ code, together with all our Haskell code into GHCi,
>     and it works
>      >>>>>>>> perfectly.  The key to using the static linker is to not
>     use it for
>      >>>>>>>> C++
>      >>>>>>>> code
>      >>>>>>>> - you want all your external C++ code in shared libraries
>     and load
>      >>>>>>>> those
>      >>>>>>>> using the system linker.
>      >>>>>>>>
>      >>>>>>>> Dynamic linking has been a huge headache in GHC, and it's
>     not clear
>      >>>>>>>> that
>      >>>>>>>> it's an overall improvement compared with the static
>     linker.  Now
>      >>>>>>>> that
>      >>>>>>>> 7.8
>      >>>>>>>> is out of the way, it's time to have a conversation about
>     whether we
>      >>>>>>>> want to
>      >>>>>>>> do dynamic linking again for 7.10, or revert to static
>     linking.  I
>      >>>>>>>> think
>      >>>>>>>> Austin is going to update
>      >>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms,
>     and then
>      >>>>>>>> we'll
>      >>>>>>>> see
>      >>>>>>>> where we stand.
>      >>>>>>>>
>      >>>>>>>> Cheers,
>      >>>>>>>> Simon
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>      >>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>     <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>> wrote:
>      >>>>>>>>>
>      >>>>>>>>>        As Austin has told us, there's a draft of the *GHC
>     Status
>      >>>>>>>>> Report
>      >>>>>>>>> for
>      >>>>>>>>>        the HCAR*, here:____
>      >>>>>>>>>
>      >>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>        Have we missed out something  you have been
>     working hard on?
>      >>>>>>>>> Do
>      >>>>>>>>>        take a moment to add a bullet in an appropriate
>     place (it's
>      >>>>>>>>> a
>      >>>>>>>>>        wiki).  I'd like to be sure that we are giving
>     credit to all
>      >>>>>>>>> the
>      >>>>>>>>>        appropriate people, so please help us fix that
>     too.  GHC is
>      >>>>>>>>> a
>      >>>>>>>>> team
>      >>>>>>>>>        effort.____
>      >>>>>>>>>
>      >>>>>>>>>        Deadline is 1 May I think.____
>      >>>>>>>>>
>      >>>>>>>>>        Thanks____
>      >>>>>>>>>
>      >>>>>>>>>        Simon____
>      >>>>>>>>>
>      >>>>>>>>>        __ __
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>        _______________________________________________
>      >>>>>>>>>        ghc-devs mailing list
>      >>>>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>      >>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>>
>      >>>>>>>>> _______________________________________________
>      >>>>>>>>> ghc-devs mailing list
>      >>>>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>      >>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>      >>>>>>>>>
>      >>>>>>>
>      >>>>>>>
>      >>>>>>> _______________________________________________
>      >>>>>>> ghc-devs mailing list
>      >>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>      >>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>      >>>>>>>
>      >>>>>
>      >>>
>      >
>     _______________________________________________
>     ghc-devs mailing list
>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     http://www.haskell.org/mailman/listinfo/ghc-devs
>
>


From carter.schonwald at gmail.com  Mon May  5 20:58:19 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Mon, 5 May 2014 16:58:19 -0400
Subject: GHC status report
In-Reply-To: <5367FA94.9040206@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
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 <5363F5E5.6040004@gmail.com>
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Message-ID: <CAHYVw0w8683qkVAeUzomLLAQMFkZj0=A6Ps97O86xsiAbsXh9Q@mail.gmail.com>

no, i was saying LLVM-General when static linked to llvm doesnt work. I
wasnt talking about ghc being dynamic or static

merely that theres no way to get llvm-general to work on ghci in 7.6 afaik


On Mon, May 5, 2014 at 4:54 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> I don't see any reason why llvm-general with the shared-llvm flag
> shouldn't work with a statically linked GHCi (7.6.3 or 7.8 with
> DYNAMIC_GHC_PROGRAMS=NO).  Doesn't it work?
>
>
> On 03/05/14 02:12, Carter Schonwald wrote:
>
>> if theres a way i can patch llvm-general so that i can use it with llvm
>> static linked into rather than dylinked, i'm all ears!
>>
>> llvm-general has to use some C++ wrappers (that in turn use extern "C"
>> sections) to make parts of the llvm api accessible from hasskell.
>>
>> I had trouble following some of the thread earlier today, but is the
>> suggestion to try building those wrappers with -fPIC would make them
>> play nice?
>>
>>
>> On Fri, May 2, 2014 at 8:52 PM, Dominick Samperi <djsamperi at gmail.com
>> <mailto:djsamperi at gmail.com>> wrote:
>>
>>     I posted a ticket related to this (#8371), but the example provided
>>     there
>>     has no problems today for all versions of ghci that I tested
>> (including
>>     7.6.3), provided -fno-ghci-sandbox is specified. So this problem was
>>     clearly related to the threads issue.
>>
>>     Today there are problems when DYNAMIC_GHC_PROGRAMS=NO, but they
>>     happen later, and I have not yet narrowed this down to a small
>> example.
>>     Basically, I have an Haskell app that embeds R (as in the sample code
>>     attached to the above ticket), but when it tries to do some
>> calculations
>>     it seg faults (works fine with 7.8.2).
>>
>>     On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com
>>     <mailto:marlowsd at gmail.com>> wrote:
>>      > Can you give me a quick summary of how to reproduce the problem?
>> (not
>>      > including the GHC build steps)
>>      >
>>      > Cheers,
>>      > Simon
>>      >
>>      >
>>      > On 02/05/14 18:18, Dominick Samperi wrote:
>>      >>
>>      >> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the
>> "quick"
>>      >> section of mk/build.mk <http://build.mk> (with BuildFlavour =
>>
>>     quick), and set
>>      >> DYNAMIC_GHC_PROGRAMS=NO
>>      >> in my environment before running configure (just to be sure!).
>> Near
>>      >> the end of the build
>>      >> I saw some messages like "Warning: vectorization failure," but the
>>      >> build completed.
>>      >>
>>      >> The status at the end of configure doesn't say that dynamic
>> linking
>>      >> via RTS has been
>>      >> turned off, and I don't know how to check that this is so.
>>      >> Nevertheless, I checked
>>      >> the linking issue and it is NOT fixed with this build, so
>>      >> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>>      >> reported by me and others.
>>      >>
>>      >>
>>      >> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com
>>     <mailto:marlowsd at gmail.com>> wrote:
>>      >>>
>>      >>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>      >>>
>>      >>>> If I understand your last comment correctly linking to libR
>> should
>>      >>>> continue to work, even if you revert to static linking of
>> Haskell
>>      >>>> compiled
>>      >>>> code via RTS linker. Since you say this is the way things have
>>     always
>>      >>>> been, perhaps the real explanation for why 7.8 fixed the issue
>>     is that
>>      >>>> some bug was fixed along the way...
>>      >>>
>>      >>>
>>      >>>
>>      >>> Indeed.  To know for sure we would have to test 7.8 with
>>      >>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do
>>     that?
>>      >>>
>>      >>> Cheers,
>>      >>> Simon
>>      >>>
>>      >>>
>>      >>>
>>      >>>> Note that R is a C library, so the C++ issues that Carter
>>     mentions are
>>      >>>> not a factor here.
>>      >>>>
>>      >>>> Thanks,
>>      >>>> Dominick
>>      >>>>
>>      >>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow
>>     <marlowsd at gmail.com <mailto:marlowsd at gmail.com>> wrote:
>>      >>>>>
>>      >>>>>
>>      >>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>      >>>>>>
>>      >>>>>>
>>      >>>>>>
>>      >>>>>> The problem with some graphics libraries used via FFI (and
>> other
>>      >>>>>> libraries
>>      >>>>>> that are not thread-safe), if I understand the situation
>>     correctly, is
>>      >>>>>> that ghci
>>      >>>>>> forks a thread when it shouldn't, causing some programs to
>>      >>>>>> miscalculate
>>      >>>>>> the available stack space (because they think there is only
>> one
>>      >>>>>> thread).
>>      >>>>>
>>      >>>>>
>>      >>>>>
>>      >>>>>>
>>      >>>>>>
>>      >>>>>> The new dynamic linking support and the flag
>>     -fno-ghci-sandbox fixes
>>      >>>>>> this problem, and I would not vote for the removal of these
>>     features.
>>      >>>>>
>>      >>>>>
>>      >>>>>
>>      >>>>>
>>      >>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>>      >>>>> libraries
>>      >>>>> that use thread-local state.  But how is dynamic linking
>>     involved here?
>>      >>>>> What improved in GHC 7.8 relative to 7.6 for you? And could
>>     you clarify
>>      >>>>> "miscalculate the available stack space"? What needs to
>>     calculate stack
>>      >>>>> space? Why? C stack space?
>>      >>>>>
>>      >>>>> We can certainly make a smoother experience around
>>     -fno-ghci-sandbox
>>      >>>>> for
>>      >>>>> using GUI libraries.
>>      >>>>>
>>      >>>>>
>>      >>>>>> It is not clear to me from Simon's original post how linking
>>     to all of
>>      >>>>>> those C++ libs can continue to work if dynamic linking is
>>     removed
>>      >>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>      >>>>>> static linking"?
>>      >>>>>
>>      >>>>>
>>      >>>>>
>>      >>>>>
>>      >>>>> When I say "revert to static linking" I mean make GHCi static
>>     linked,
>>      >>>>> and
>>      >>>>> have it load Haskell code compiled for static linking using
>>     the RTS
>>      >>>>> linker
>>      >>>>> (like it did in 7.6).  Foreign libraries would still be
>>     loaded using
>>      >>>>> the
>>      >>>>> system linker, as they always have been.
>>      >>>>>
>>      >>>>> To be clear, I'm not officially proposing that we drop
>>     dynamic linking,
>>      >>>>> but
>>      >>>>> I think it's worthwhile exploring the design space again,
>>     given that we
>>      >>>>> know
>>      >>>>> dynamic linking has been tougher than we expected.
>>      >>>>>
>>      >>>>> Cheers,
>>      >>>>> Simon
>>      >>>>>
>>      >>>>>
>>      >>>>>
>>      >>>>>> Thanks,
>>      >>>>>> Dominick
>>      >>>>>>
>>      >>>>>>
>>      >>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>      >>>>>> <george.colpitts at gmail.com
>>     <mailto:george.colpitts at gmail.com>> wrote:
>>      >>>>>>>
>>      >>>>>>>
>>      >>>>>>>
>>      >>>>>>> To elaborate, in the past, I had a lot of problems using
>>     libraries
>>      >>>>>>> from
>>      >>>>>>> the
>>      >>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>      >>>>>>>
>>      >>>>>>> As an example, on the web page for the book the Haskell
>>     School of
>>      >>>>>>> Expression
>>      >>>>>>> it says:
>>      >>>>>>>
>>      >>>>>>> Note for OS X users: running graphics applications from
>>     GHCi is no
>>      >>>>>>> longer
>>      >>>>>>> supported. Instead, one has to compile a graphics program
>>     using GHC
>>      >>>>>>> in
>>      >>>>>>> order
>>      >>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>      >>>>>>>
>>      >>>>>>> I had similar problems using the Yale Euterpea music
>>     program from
>>      >>>>>>> ghci.
>>      >>>>>>> When
>>      >>>>>>> I inquired I was referred to
>>      >>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>      >>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that
>> the
>>      >>>>>>> latter
>>      >>>>>>> is
>>      >>>>>>> now scheduled for 7.10.1
>>      >>>>>>>
>>      >>>>>>>
>>      >>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow
>>     <marlowsd at gmail.com <mailto:marlowsd at gmail.com>>
>>
>>      >>>>>>> wrote:
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>> It doesn't have anything about the dynamic linking
>>     changes made for
>>      >>>>>>>>> 7.8.
>>      >>>>>>>>> I think it's worth mentioning the improvements we expect
>>     to get
>>      >>>>>>>>> from
>>      >>>>>>>>> that. The highlights of the release notes do mention it,
>>     so maybe
>>      >>>>>>>>> that
>>      >>>>>>>>> suffices.
>>      >>>>>>>>>
>>      >>>>>>>>> In particular, I'm hoping that it is going to fix a lot
>>     of problems
>>      >>>>>>>>> with
>>      >>>>>>>>> using foreign libraries such as OpenGL from ghci. I could
>>     be wrong
>>      >>>>>>>>> about
>>      >>>>>>>>> that though.
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>> I'd like to understand more about what those problems are.
>>       As a
>>      >>>>>>>> data
>>      >>>>>>>> point, at Facebook we're using static linking (I compiled
>>     GHC with
>>      >>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50
>>     3rd-party C++
>>      >>>>>>>> libraries and one gigantic shared library consisting of a
>>     ton of
>>      >>>>>>>> in-house
>>      >>>>>>>> C++ code, together with all our Haskell code into GHCi,
>>     and it works
>>      >>>>>>>> perfectly.  The key to using the static linker is to not
>>     use it for
>>      >>>>>>>> C++
>>      >>>>>>>> code
>>      >>>>>>>> - you want all your external C++ code in shared libraries
>>     and load
>>      >>>>>>>> those
>>      >>>>>>>> using the system linker.
>>      >>>>>>>>
>>      >>>>>>>> Dynamic linking has been a huge headache in GHC, and it's
>>     not clear
>>      >>>>>>>> that
>>      >>>>>>>> it's an overall improvement compared with the static
>>     linker.  Now
>>      >>>>>>>> that
>>      >>>>>>>> 7.8
>>      >>>>>>>> is out of the way, it's time to have a conversation about
>>     whether we
>>      >>>>>>>> want to
>>      >>>>>>>> do dynamic linking again for 7.10, or revert to static
>>     linking.  I
>>      >>>>>>>> think
>>      >>>>>>>> Austin is going to update
>>      >>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms,
>>     and then
>>      >>>>>>>> we'll
>>      >>>>>>>> see
>>      >>>>>>>> where we stand.
>>      >>>>>>>>
>>      >>>>>>>> Cheers,
>>      >>>>>>>> Simon
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>      >>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>
>>      <mailto:simonpj at microsoft.com <mailto:simonpj at microsoft.com>>>
>> wrote:
>>      >>>>>>>>>
>>      >>>>>>>>>        As Austin has told us, there's a draft of the *GHC
>>     Status
>>      >>>>>>>>> Report
>>      >>>>>>>>> for
>>      >>>>>>>>>        the HCAR*, here:____
>>      >>>>>>>>>
>>      >>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>        Have we missed out something  you have been
>>     working hard on?
>>      >>>>>>>>> Do
>>      >>>>>>>>>        take a moment to add a bullet in an appropriate
>>     place (it's
>>      >>>>>>>>> a
>>      >>>>>>>>>        wiki).  I'd like to be sure that we are giving
>>     credit to all
>>      >>>>>>>>> the
>>      >>>>>>>>>        appropriate people, so please help us fix that
>>     too.  GHC is
>>      >>>>>>>>> a
>>      >>>>>>>>> team
>>      >>>>>>>>>        effort.____
>>      >>>>>>>>>
>>      >>>>>>>>>        Deadline is 1 May I think.____
>>      >>>>>>>>>
>>      >>>>>>>>>        Thanks____
>>      >>>>>>>>>
>>      >>>>>>>>>        Simon____
>>      >>>>>>>>>
>>      >>>>>>>>>        __ __
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>        _______________________________________________
>>      >>>>>>>>>        ghc-devs mailing list
>>      >>>>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>      <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>
>>      >>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>>
>>      >>>>>>>>> _______________________________________________
>>      >>>>>>>>> ghc-devs mailing list
>>      >>>>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>      >>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>      >>>>>>>>>
>>      >>>>>>>
>>      >>>>>>>
>>      >>>>>>> _______________________________________________
>>      >>>>>>> ghc-devs mailing list
>>      >>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>      >>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>      >>>>>>>
>>      >>>>>
>>      >>>
>>      >
>>     _______________________________________________
>>     ghc-devs mailing list
>>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>     http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>>
>
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From marlowsd at gmail.com  Mon May  5 20:58:42 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Mon, 05 May 2014 21:58:42 +0100
Subject: GHC status report
In-Reply-To: <CADUbQ5iwejadOJjrkN-p+FWV-VPRHDBXGtc7rrc5j-+PBGCmrg@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>	<CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>	<5362BC24.9030101@gmail.com>	<CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>	<5363990D.5080200@gmail.com>	<CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>	<5363F5E5.6040004@gmail.com>
 <CADUbQ5iwejadOJjrkN-p+FWV-VPRHDBXGtc7rrc5j-+PBGCmrg@mail.gmail.com>
Message-ID: <5367FB82.6050001@gmail.com>

On 03/05/14 04:15, Dominick Samperi wrote:
> I'm trying to understand the dynamic linking situation with the help of
> https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-7.8, and according
> to this information I need to specify DYNAMIC_GHC_PROGRAMS=YES
> for ghci to use the system linker. I don't understand why you suggested
> I test with DYNAMIC_GHC_PROGRAMS=NO?

The question I'm trying to answer is "what stops working if we use 
DYNAMIC_GHC_PROGRAMS=NO?".  So that's why I'm interested in what happens 
if you set this option.

Thanks for your help!

Cheers,
Simon


> Another interesting twist is that my experience under Windows
> is the opposite of the negative experience described on this
> page. What I mean by this is more versions of ghci seem to
> work under Windows (correctly linking to R.dll) than work
> under Linux!
>
>
> On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>> Can you give me a quick summary of how to reproduce the problem? (not
>> including the GHC build steps)
>>
>> Cheers,
>> Simon
>>
>>
>> On 02/05/14 18:18, Dominick Samperi wrote:
>>>
>>> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
>>> section of mk/build.mk (with BuildFlavour = quick), and set
>>> DYNAMIC_GHC_PROGRAMS=NO
>>> in my environment before running configure (just to be sure!). Near
>>> the end of the build
>>> I saw some messages like "Warning: vectorization failure," but the
>>> build completed.
>>>
>>> The status at the end of configure doesn't say that dynamic linking
>>> via RTS has been
>>> turned off, and I don't know how to check that this is so.
>>> Nevertheless, I checked
>>> the linking issue and it is NOT fixed with this build, so
>>> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>>> reported by me and others.
>>>
>>>
>>> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>
>>>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>>>
>>>>> If I understand your last comment correctly linking to libR should
>>>>> continue to work, even if you revert to static linking of Haskell
>>>>> compiled
>>>>> code via RTS linker. Since you say this is the way things have always
>>>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>>>>> some bug was fixed along the way...
>>>>
>>>>
>>>>
>>>> Indeed.  To know for sure we would have to test 7.8 with
>>>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>>>>
>>>> Cheers,
>>>> Simon
>>>>
>>>>
>>>>
>>>>> Note that R is a C library, so the C++ issues that Carter mentions are
>>>>> not a factor here.
>>>>>
>>>>> Thanks,
>>>>> Dominick
>>>>>
>>>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>>
>>>>>>
>>>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> The problem with some graphics libraries used via FFI (and other
>>>>>>> libraries
>>>>>>> that are not thread-safe), if I understand the situation correctly, is
>>>>>>> that ghci
>>>>>>> forks a thread when it shouldn't, causing some programs to
>>>>>>> miscalculate
>>>>>>> the available stack space (because they think there is only one
>>>>>>> thread).
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>>>>> this problem, and I would not vote for the removal of these features.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>>>>>> libraries
>>>>>> that use thread-local state.  But how is dynamic linking involved here?
>>>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you clarify
>>>>>> "miscalculate the available stack space"? What needs to calculate stack
>>>>>> space? Why? C stack space?
>>>>>>
>>>>>> We can certainly make a smoother experience around -fno-ghci-sandbox
>>>>>> for
>>>>>> using GUI libraries.
>>>>>>
>>>>>>
>>>>>>> It is not clear to me from Simon's original post how linking to all of
>>>>>>> those C++ libs can continue to work if dynamic linking is removed
>>>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>>>>> static linking"?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> When I say "revert to static linking" I mean make GHCi static linked,
>>>>>> and
>>>>>> have it load Haskell code compiled for static linking using the RTS
>>>>>> linker
>>>>>> (like it did in 7.6).  Foreign libraries would still be loaded using
>>>>>> the
>>>>>> system linker, as they always have been.
>>>>>>
>>>>>> To be clear, I'm not officially proposing that we drop dynamic linking,
>>>>>> but
>>>>>> I think it's worthwhile exploring the design space again, given that we
>>>>>> know
>>>>>> dynamic linking has been tougher than we expected.
>>>>>>
>>>>>> Cheers,
>>>>>> Simon
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Thanks,
>>>>>>> Dominick
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>>>>> <george.colpitts at gmail.com> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> To elaborate, in the past, I had a lot of problems using libraries
>>>>>>>> from
>>>>>>>> the
>>>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>>>>
>>>>>>>> As an example, on the web page for the book the Haskell School of
>>>>>>>> Expression
>>>>>>>> it says:
>>>>>>>>
>>>>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>>>>> longer
>>>>>>>> supported. Instead, one has to compile a graphics program using GHC
>>>>>>>> in
>>>>>>>> order
>>>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>>>>
>>>>>>>> I had similar problems using the Yale Euterpea music program from
>>>>>>>> ghci.
>>>>>>>> When
>>>>>>>> I inquired I was referred to
>>>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
>>>>>>>> latter
>>>>>>>> is
>>>>>>>> now scheduled for 7.10.1
>>>>>>>>
>>>>>>>>
>>>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> It doesn't have anything about the dynamic linking changes made for
>>>>>>>>>> 7.8.
>>>>>>>>>> I think it's worth mentioning the improvements we expect to get
>>>>>>>>>> from
>>>>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>>>>> that
>>>>>>>>>> suffices.
>>>>>>>>>>
>>>>>>>>>> In particular, I'm hoping that it is going to fix a lot of problems
>>>>>>>>>> with
>>>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be wrong
>>>>>>>>>> about
>>>>>>>>>> that though.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> I'd like to understand more about what those problems are.  As a
>>>>>>>>> data
>>>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party C++
>>>>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>>>>> in-house
>>>>>>>>> C++ code, together with all our Haskell code into GHCi, and it works
>>>>>>>>> perfectly.  The key to using the static linker is to not use it for
>>>>>>>>> C++
>>>>>>>>> code
>>>>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>>>>> those
>>>>>>>>> using the system linker.
>>>>>>>>>
>>>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not clear
>>>>>>>>> that
>>>>>>>>> it's an overall improvement compared with the static linker.  Now
>>>>>>>>> that
>>>>>>>>> 7.8
>>>>>>>>> is out of the way, it's time to have a conversation about whether we
>>>>>>>>> want to
>>>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>>>>> think
>>>>>>>>> Austin is going to update
>>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>>>>> we'll
>>>>>>>>> see
>>>>>>>>> where we stand.
>>>>>>>>>
>>>>>>>>> Cheers,
>>>>>>>>> Simon
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>>>>
>>>>>>>>>>         As Austin has told us, there's a draft of the *GHC Status
>>>>>>>>>> Report
>>>>>>>>>> for
>>>>>>>>>>         the HCAR*, here:____
>>>>>>>>>>
>>>>>>>>>>         https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>         Have we missed out something  you have been working hard on?
>>>>>>>>>> Do
>>>>>>>>>>         take a moment to add a bullet in an appropriate place (it's
>>>>>>>>>> a
>>>>>>>>>>         wiki).  I'd like to be sure that we are giving credit to all
>>>>>>>>>> the
>>>>>>>>>>         appropriate people, so please help us fix that too.  GHC is
>>>>>>>>>> a
>>>>>>>>>> team
>>>>>>>>>>         effort.____
>>>>>>>>>>
>>>>>>>>>>         Deadline is 1 May I think.____
>>>>>>>>>>
>>>>>>>>>>         Thanks____
>>>>>>>>>>
>>>>>>>>>>         Simon____
>>>>>>>>>>
>>>>>>>>>>         __ __
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>         _______________________________________________
>>>>>>>>>>         ghc-devs mailing list
>>>>>>>>>>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>>>>         http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> ghc-devs mailing list
>>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> ghc-devs mailing list
>>>>>>>> ghc-devs at haskell.org
>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>
>>>>>>
>>>>
>>


From marlowsd at gmail.com  Mon May  5 21:01:38 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Mon, 05 May 2014 22:01:38 +0100
Subject: GHC status report
In-Reply-To: <CAHYVw0w8683qkVAeUzomLLAQMFkZj0=A6Ps97O86xsiAbsXh9Q@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
 <CADUbQ5iJctNEwgfv8ZH3VJ1jbZ6b1tyurF6iTfeOYXkXh6vMnw@mail.gmail.com>
 <CAHYVw0ykScXsEQDKA4YjR2dDT460o1Jr5bty6u=eOEwnjAa3Qg@mail.gmail.com>
 <5367FA94.9040206@gmail.com>
 <CAHYVw0w8683qkVAeUzomLLAQMFkZj0=A6Ps97O86xsiAbsXh9Q@mail.gmail.com>
Message-ID: <5367FC32.7050500@gmail.com>

On 05/05/14 21:58, Carter Schonwald wrote:
> no, i was saying LLVM-General when static linked to llvm doesnt work. I
> wasnt talking about ghc being dynamic or static

I believe you that it doesn't work.  But I think that if you use a 
dynamically-linked llvm (i.e. the shared-llvm flag), it *should* work, 
even with 7.6.3.  What goes wrong in that case?

Cheers,
Simon

> merely that theres no way to get llvm-general to work on ghci in 7.6 afaik
>
>
> On Mon, May 5, 2014 at 4:54 PM, Simon Marlow <marlowsd at gmail.com
> <mailto:marlowsd at gmail.com>> wrote:
>
>     I don't see any reason why llvm-general with the shared-llvm flag
>     shouldn't work with a statically linked GHCi (7.6.3 or 7.8 with
>     DYNAMIC_GHC_PROGRAMS=NO).  Doesn't it work?
>
>
>     On 03/05/14 02:12, Carter Schonwald wrote:
>
>         if theres a way i can patch llvm-general so that i can use it
>         with llvm
>         static linked into rather than dylinked, i'm all ears!
>
>         llvm-general has to use some C++ wrappers (that in turn use
>         extern "C"
>         sections) to make parts of the llvm api accessible from hasskell.
>
>         I had trouble following some of the thread earlier today, but is the
>         suggestion to try building those wrappers with -fPIC would make them
>         play nice?
>
>
>         On Fri, May 2, 2014 at 8:52 PM, Dominick Samperi
>         <djsamperi at gmail.com <mailto:djsamperi at gmail.com>
>         <mailto:djsamperi at gmail.com <mailto:djsamperi at gmail.com>>> wrote:
>
>              I posted a ticket related to this (#8371), but the example
>         provided
>              there
>              has no problems today for all versions of ghci that I
>         tested (including
>              7.6.3), provided -fno-ghci-sandbox is specified. So this
>         problem was
>              clearly related to the threads issue.
>
>              Today there are problems when DYNAMIC_GHC_PROGRAMS=NO, but they
>              happen later, and I have not yet narrowed this down to a
>         small example.
>              Basically, I have an Haskell app that embeds R (as in the
>         sample code
>              attached to the above ticket), but when it tries to do some
>         calculations
>              it seg faults (works fine with 7.8.2).
>
>              On Fri, May 2, 2014 at 3:45 PM, Simon Marlow
>         <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>              <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>               > Can you give me a quick summary of how to reproduce the
>         problem? (not
>               > including the GHC build steps)
>               >
>               > Cheers,
>               > Simon
>               >
>               >
>               > On 02/05/14 18:18, Dominick Samperi wrote:
>               >>
>               >> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in
>         the "quick"
>               >> section of mk/build.mk <http://build.mk>
>         <http://build.mk> (with BuildFlavour =
>
>              quick), and set
>               >> DYNAMIC_GHC_PROGRAMS=NO
>               >> in my environment before running configure (just to be
>         sure!). Near
>               >> the end of the build
>               >> I saw some messages like "Warning: vectorization
>         failure," but the
>               >> build completed.
>               >>
>               >> The status at the end of configure doesn't say that
>         dynamic linking
>               >> via RTS has been
>               >> turned off, and I don't know how to check that this is so.
>               >> Nevertheless, I checked
>               >> the linking issue and it is NOT fixed with this build, so
>               >> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the
>         problems
>               >> reported by me and others.
>               >>
>               >>
>               >> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow
>         <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>              <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>               >>>
>               >>> On 02/05/2014 01:09, Dominick Samperi wrote:
>               >>>
>               >>>> If I understand your last comment correctly linking
>         to libR should
>               >>>> continue to work, even if you revert to static
>         linking of Haskell
>               >>>> compiled
>               >>>> code via RTS linker. Since you say this is the way
>         things have
>              always
>               >>>> been, perhaps the real explanation for why 7.8 fixed
>         the issue
>              is that
>               >>>> some bug was fixed along the way...
>               >>>
>               >>>
>               >>>
>               >>> Indeed.  To know for sure we would have to test 7.8 with
>               >>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a
>         way to do
>              that?
>               >>>
>               >>> Cheers,
>               >>> Simon
>               >>>
>               >>>
>               >>>
>               >>>> Note that R is a C library, so the C++ issues that Carter
>              mentions are
>               >>>> not a factor here.
>               >>>>
>               >>>> Thanks,
>               >>>> Dominick
>               >>>>
>               >>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow
>              <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>               >>>>>
>               >>>>>
>               >>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>               >>>>>>
>               >>>>>>
>               >>>>>>
>               >>>>>> The problem with some graphics libraries used via
>         FFI (and other
>               >>>>>> libraries
>               >>>>>> that are not thread-safe), if I understand the
>         situation
>              correctly, is
>               >>>>>> that ghci
>               >>>>>> forks a thread when it shouldn't, causing some
>         programs to
>               >>>>>> miscalculate
>               >>>>>> the available stack space (because they think there
>         is only one
>               >>>>>> thread).
>               >>>>>
>               >>>>>
>               >>>>>
>               >>>>>>
>               >>>>>>
>               >>>>>> The new dynamic linking support and the flag
>              -fno-ghci-sandbox fixes
>               >>>>>> this problem, and I would not vote for the removal
>         of these
>              features.
>               >>>>>
>               >>>>>
>               >>>>>
>               >>>>>
>               >>>>> So I understand how -fno-ghci-sandbox avoids
>         problems with GUI
>               >>>>> libraries
>               >>>>> that use thread-local state.  But how is dynamic linking
>              involved here?
>               >>>>> What improved in GHC 7.8 relative to 7.6 for you?
>         And could
>              you clarify
>               >>>>> "miscalculate the available stack space"? What needs to
>              calculate stack
>               >>>>> space? Why? C stack space?
>               >>>>>
>               >>>>> We can certainly make a smoother experience around
>              -fno-ghci-sandbox
>               >>>>> for
>               >>>>> using GUI libraries.
>               >>>>>
>               >>>>>
>               >>>>>> It is not clear to me from Simon's original post
>         how linking
>              to all of
>               >>>>>> those C++ libs can continue to work if dynamic
>         linking is
>              removed
>               >>>>>> in 7.10? Perhaps I misunderstand what you mean by
>         "revert to
>               >>>>>> static linking"?
>               >>>>>
>               >>>>>
>               >>>>>
>               >>>>>
>               >>>>> When I say "revert to static linking" I mean make
>         GHCi static
>              linked,
>               >>>>> and
>               >>>>> have it load Haskell code compiled for static
>         linking using
>              the RTS
>               >>>>> linker
>               >>>>> (like it did in 7.6).  Foreign libraries would still be
>              loaded using
>               >>>>> the
>               >>>>> system linker, as they always have been.
>               >>>>>
>               >>>>> To be clear, I'm not officially proposing that we drop
>              dynamic linking,
>               >>>>> but
>               >>>>> I think it's worthwhile exploring the design space
>         again,
>              given that we
>               >>>>> know
>               >>>>> dynamic linking has been tougher than we expected.
>               >>>>>
>               >>>>> Cheers,
>               >>>>> Simon
>               >>>>>
>               >>>>>
>               >>>>>
>               >>>>>> Thanks,
>               >>>>>> Dominick
>               >>>>>>
>               >>>>>>
>               >>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>               >>>>>> <george.colpitts at gmail.com
>         <mailto:george.colpitts at gmail.com>
>              <mailto:george.colpitts at gmail.__com
>         <mailto:george.colpitts at gmail.com>>> wrote:
>               >>>>>>>
>               >>>>>>>
>               >>>>>>>
>               >>>>>>> To elaborate, in the past, I had a lot of problems
>         using
>              libraries
>               >>>>>>> from
>               >>>>>>> the
>               >>>>>>> ghci prompt on the Mac but I haven't tried recently.
>               >>>>>>>
>               >>>>>>> As an example, on the web page for the book the
>         Haskell
>              School of
>               >>>>>>> Expression
>               >>>>>>> it says:
>               >>>>>>>
>               >>>>>>> Note for OS X users: running graphics applications
>         from
>              GHCi is no
>               >>>>>>> longer
>               >>>>>>> supported. Instead, one has to compile a graphics
>         program
>              using GHC
>               >>>>>>> in
>               >>>>>>> order
>               >>>>>>> to run it (see example/GMIExamples.lhs for an
>         example).
>               >>>>>>>
>               >>>>>>> I had similar problems using the Yale Euterpea music
>              program from
>               >>>>>>> ghci.
>               >>>>>>> When
>               >>>>>>> I inquired I was referred to
>               >>>>>>> https://ghc.haskell.org/trac/__ghc/ticket/4244
>         <https://ghc.haskell.org/trac/ghc/ticket/4244>
>               >>>>>>> and https://ghc.haskell.org/trac/__ghc/ticket/781
>         <https://ghc.haskell.org/trac/ghc/ticket/781>. I see that the
>               >>>>>>> latter
>               >>>>>>> is
>               >>>>>>> now scheduled for 7.10.1
>               >>>>>>>
>               >>>>>>>
>               >>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow
>              <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>>
>
>               >>>>>>> wrote:
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>> It doesn't have anything about the dynamic linking
>              changes made for
>               >>>>>>>>> 7.8.
>               >>>>>>>>> I think it's worth mentioning the improvements
>         we expect
>              to get
>               >>>>>>>>> from
>               >>>>>>>>> that. The highlights of the release notes do
>         mention it,
>              so maybe
>               >>>>>>>>> that
>               >>>>>>>>> suffices.
>               >>>>>>>>>
>               >>>>>>>>> In particular, I'm hoping that it is going to
>         fix a lot
>              of problems
>               >>>>>>>>> with
>               >>>>>>>>> using foreign libraries such as OpenGL from
>         ghci. I could
>              be wrong
>               >>>>>>>>> about
>               >>>>>>>>> that though.
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>> I'd like to understand more about what those
>         problems are.
>                As a
>               >>>>>>>> data
>               >>>>>>>> point, at Facebook we're using static linking (I
>         compiled
>              GHC with
>               >>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50
>              3rd-party C++
>               >>>>>>>> libraries and one gigantic shared library
>         consisting of a
>              ton of
>               >>>>>>>> in-house
>               >>>>>>>> C++ code, together with all our Haskell code into
>         GHCi,
>              and it works
>               >>>>>>>> perfectly.  The key to using the static linker is
>         to not
>              use it for
>               >>>>>>>> C++
>               >>>>>>>> code
>               >>>>>>>> - you want all your external C++ code in shared
>         libraries
>              and load
>               >>>>>>>> those
>               >>>>>>>> using the system linker.
>               >>>>>>>>
>               >>>>>>>> Dynamic linking has been a huge headache in GHC,
>         and it's
>              not clear
>               >>>>>>>> that
>               >>>>>>>> it's an overall improvement compared with the static
>              linker.  Now
>               >>>>>>>> that
>               >>>>>>>> 7.8
>               >>>>>>>> is out of the way, it's time to have a
>         conversation about
>              whether we
>               >>>>>>>> want to
>               >>>>>>>> do dynamic linking again for 7.10, or revert to
>         static
>              linking.  I
>               >>>>>>>> think
>               >>>>>>>> Austin is going to update
>               >>>>>>>>
>         https://ghc.haskell.org/trac/__ghc/wiki/DynamicGhcPrograms
>         <https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms>,
>              and then
>               >>>>>>>> we'll
>               >>>>>>>> see
>               >>>>>>>> where we stand.
>               >>>>>>>>
>               >>>>>>>> Cheers,
>               >>>>>>>> Simon
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>               >>>>>>>>> <simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>>
>              <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>>__>> wrote:
>               >>>>>>>>>
>               >>>>>>>>>        As Austin has told us, there's a draft of
>         the *GHC
>              Status
>               >>>>>>>>> Report
>               >>>>>>>>> for
>               >>>>>>>>>        the HCAR*, here:____
>               >>>>>>>>>
>               >>>>>>>>>
>         https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>        Have we missed out something  you have been
>              working hard on?
>               >>>>>>>>> Do
>               >>>>>>>>>        take a moment to add a bullet in an
>         appropriate
>              place (it's
>               >>>>>>>>> a
>               >>>>>>>>>        wiki).  I'd like to be sure that we are
>         giving
>              credit to all
>               >>>>>>>>> the
>               >>>>>>>>>        appropriate people, so please help us fix
>         that
>              too.  GHC is
>               >>>>>>>>> a
>               >>>>>>>>> team
>               >>>>>>>>>        effort.____
>               >>>>>>>>>
>               >>>>>>>>>        Deadline is 1 May I think.____
>               >>>>>>>>>
>               >>>>>>>>>        Thanks____
>               >>>>>>>>>
>               >>>>>>>>>        Simon____
>               >>>>>>>>>
>               >>>>>>>>>        __ __
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>
>           _________________________________________________
>               >>>>>>>>>        ghc-devs mailing list
>               >>>>>>>>> ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>
>              <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>>
>
>               >>>>>>>>>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>>
>               >>>>>>>>> _________________________________________________
>               >>>>>>>>> ghc-devs mailing list
>               >>>>>>>>> ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>
>               >>>>>>>>>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>               >>>>>>>>>
>               >>>>>>>
>               >>>>>>>
>               >>>>>>> _________________________________________________
>               >>>>>>> ghc-devs mailing list
>               >>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>               >>>>>>> http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>               >>>>>>>
>               >>>>>
>               >>>
>               >
>              _________________________________________________
>              ghc-devs mailing list
>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>
>
>
>


From carter.schonwald at gmail.com  Mon May  5 21:08:29 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Mon, 5 May 2014 17:08:29 -0400
Subject: GHC status report
In-Reply-To: <5367FC32.7050500@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
 <CADUbQ5iJctNEwgfv8ZH3VJ1jbZ6b1tyurF6iTfeOYXkXh6vMnw@mail.gmail.com>
 <CAHYVw0ykScXsEQDKA4YjR2dDT460o1Jr5bty6u=eOEwnjAa3Qg@mail.gmail.com>
 <5367FA94.9040206@gmail.com>
 <CAHYVw0w8683qkVAeUzomLLAQMFkZj0=A6Ps97O86xsiAbsXh9Q@mail.gmail.com>
 <5367FC32.7050500@gmail.com>
Message-ID: <CAHYVw0xT9Rm-+jF45--UfqJe=g+1m4_DrcvMp1AdrH=3Y1bxpQ@mail.gmail.com>

i don't have 7.6 setup anymore, i'll see about reproducing the issue later.
it falls under the umbrella of "linking not working in ghci", But it could
be that didn't try the -fshared-llvm + ghci in 7.6


On Mon, May 5, 2014 at 5:01 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 05/05/14 21:58, Carter Schonwald wrote:
>
>> no, i was saying LLVM-General when static linked to llvm doesnt work. I
>> wasnt talking about ghc being dynamic or static
>>
>
> I believe you that it doesn't work.  But I think that if you use a
> dynamically-linked llvm (i.e. the shared-llvm flag), it *should* work, even
> with 7.6.3.  What goes wrong in that case?
>
> Cheers,
> Simon
>
>  merely that theres no way to get llvm-general to work on ghci in 7.6 afaik
>>
>>
>> On Mon, May 5, 2014 at 4:54 PM, Simon Marlow <marlowsd at gmail.com
>> <mailto:marlowsd at gmail.com>> wrote:
>>
>>     I don't see any reason why llvm-general with the shared-llvm flag
>>     shouldn't work with a statically linked GHCi (7.6.3 or 7.8 with
>>     DYNAMIC_GHC_PROGRAMS=NO).  Doesn't it work?
>>
>>
>>     On 03/05/14 02:12, Carter Schonwald wrote:
>>
>>         if theres a way i can patch llvm-general so that i can use it
>>         with llvm
>>         static linked into rather than dylinked, i'm all ears!
>>
>>         llvm-general has to use some C++ wrappers (that in turn use
>>         extern "C"
>>         sections) to make parts of the llvm api accessible from hasskell.
>>
>>         I had trouble following some of the thread earlier today, but is
>> the
>>         suggestion to try building those wrappers with -fPIC would make
>> them
>>         play nice?
>>
>>
>>         On Fri, May 2, 2014 at 8:52 PM, Dominick Samperi
>>         <djsamperi at gmail.com <mailto:djsamperi at gmail.com>
>>         <mailto:djsamperi at gmail.com <mailto:djsamperi at gmail.com>>> wrote:
>>
>>              I posted a ticket related to this (#8371), but the example
>>         provided
>>              there
>>              has no problems today for all versions of ghci that I
>>         tested (including
>>              7.6.3), provided -fno-ghci-sandbox is specified. So this
>>         problem was
>>              clearly related to the threads issue.
>>
>>              Today there are problems when DYNAMIC_GHC_PROGRAMS=NO, but
>> they
>>              happen later, and I have not yet narrowed this down to a
>>         small example.
>>              Basically, I have an Haskell app that embeds R (as in the
>>         sample code
>>              attached to the above ticket), but when it tries to do some
>>         calculations
>>              it seg faults (works fine with 7.8.2).
>>
>>              On Fri, May 2, 2014 at 3:45 PM, Simon Marlow
>>         <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>>              <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>>
>> wrote:
>>               > Can you give me a quick summary of how to reproduce the
>>         problem? (not
>>               > including the GHC build steps)
>>               >
>>               > Cheers,
>>               > Simon
>>               >
>>               >
>>               > On 02/05/14 18:18, Dominick Samperi wrote:
>>               >>
>>               >> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in
>>         the "quick"
>>               >> section of mk/build.mk <http://build.mk>
>>         <http://build.mk> (with BuildFlavour =
>>
>>              quick), and set
>>               >> DYNAMIC_GHC_PROGRAMS=NO
>>               >> in my environment before running configure (just to be
>>         sure!). Near
>>               >> the end of the build
>>               >> I saw some messages like "Warning: vectorization
>>         failure," but the
>>               >> build completed.
>>               >>
>>               >> The status at the end of configure doesn't say that
>>         dynamic linking
>>               >> via RTS has been
>>               >> turned off, and I don't know how to check that this is
>> so.
>>               >> Nevertheless, I checked
>>               >> the linking issue and it is NOT fixed with this build, so
>>               >> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the
>>         problems
>>               >> reported by me and others.
>>               >>
>>               >>
>>               >> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow
>>         <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>>              <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>>
>> wrote:
>>               >>>
>>               >>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>               >>>
>>               >>>> If I understand your last comment correctly linking
>>         to libR should
>>               >>>> continue to work, even if you revert to static
>>         linking of Haskell
>>               >>>> compiled
>>               >>>> code via RTS linker. Since you say this is the way
>>         things have
>>              always
>>               >>>> been, perhaps the real explanation for why 7.8 fixed
>>         the issue
>>              is that
>>               >>>> some bug was fixed along the way...
>>               >>>
>>               >>>
>>               >>>
>>               >>> Indeed.  To know for sure we would have to test 7.8 with
>>               >>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a
>>         way to do
>>              that?
>>               >>>
>>               >>> Cheers,
>>               >>> Simon
>>               >>>
>>               >>>
>>               >>>
>>               >>>> Note that R is a C library, so the C++ issues that
>> Carter
>>              mentions are
>>               >>>> not a factor here.
>>               >>>>
>>               >>>> Thanks,
>>               >>>> Dominick
>>               >>>>
>>               >>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow
>>              <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>>               >>>>>
>>               >>>>>
>>               >>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>               >>>>>>
>>               >>>>>>
>>               >>>>>>
>>               >>>>>> The problem with some graphics libraries used via
>>         FFI (and other
>>               >>>>>> libraries
>>               >>>>>> that are not thread-safe), if I understand the
>>         situation
>>              correctly, is
>>               >>>>>> that ghci
>>               >>>>>> forks a thread when it shouldn't, causing some
>>         programs to
>>               >>>>>> miscalculate
>>               >>>>>> the available stack space (because they think there
>>         is only one
>>               >>>>>> thread).
>>               >>>>>
>>               >>>>>
>>               >>>>>
>>               >>>>>>
>>               >>>>>>
>>               >>>>>> The new dynamic linking support and the flag
>>              -fno-ghci-sandbox fixes
>>               >>>>>> this problem, and I would not vote for the removal
>>         of these
>>              features.
>>               >>>>>
>>               >>>>>
>>               >>>>>
>>               >>>>>
>>               >>>>> So I understand how -fno-ghci-sandbox avoids
>>         problems with GUI
>>               >>>>> libraries
>>               >>>>> that use thread-local state.  But how is dynamic
>> linking
>>              involved here?
>>               >>>>> What improved in GHC 7.8 relative to 7.6 for you?
>>         And could
>>              you clarify
>>               >>>>> "miscalculate the available stack space"? What needs
>> to
>>              calculate stack
>>               >>>>> space? Why? C stack space?
>>               >>>>>
>>               >>>>> We can certainly make a smoother experience around
>>              -fno-ghci-sandbox
>>               >>>>> for
>>               >>>>> using GUI libraries.
>>               >>>>>
>>               >>>>>
>>               >>>>>> It is not clear to me from Simon's original post
>>         how linking
>>              to all of
>>               >>>>>> those C++ libs can continue to work if dynamic
>>         linking is
>>              removed
>>               >>>>>> in 7.10? Perhaps I misunderstand what you mean by
>>         "revert to
>>               >>>>>> static linking"?
>>               >>>>>
>>               >>>>>
>>               >>>>>
>>               >>>>>
>>               >>>>> When I say "revert to static linking" I mean make
>>         GHCi static
>>              linked,
>>               >>>>> and
>>               >>>>> have it load Haskell code compiled for static
>>         linking using
>>              the RTS
>>               >>>>> linker
>>               >>>>> (like it did in 7.6).  Foreign libraries would still
>> be
>>              loaded using
>>               >>>>> the
>>               >>>>> system linker, as they always have been.
>>               >>>>>
>>               >>>>> To be clear, I'm not officially proposing that we drop
>>              dynamic linking,
>>               >>>>> but
>>               >>>>> I think it's worthwhile exploring the design space
>>         again,
>>              given that we
>>               >>>>> know
>>               >>>>> dynamic linking has been tougher than we expected.
>>               >>>>>
>>               >>>>> Cheers,
>>               >>>>> Simon
>>               >>>>>
>>               >>>>>
>>               >>>>>
>>               >>>>>> Thanks,
>>               >>>>>> Dominick
>>               >>>>>>
>>               >>>>>>
>>               >>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>               >>>>>> <george.colpitts at gmail.com
>>         <mailto:george.colpitts at gmail.com>
>>              <mailto:george.colpitts at gmail.__com
>>
>>         <mailto:george.colpitts at gmail.com>>> wrote:
>>               >>>>>>>
>>               >>>>>>>
>>               >>>>>>>
>>               >>>>>>> To elaborate, in the past, I had a lot of problems
>>         using
>>              libraries
>>               >>>>>>> from
>>               >>>>>>> the
>>               >>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>               >>>>>>>
>>               >>>>>>> As an example, on the web page for the book the
>>         Haskell
>>              School of
>>               >>>>>>> Expression
>>               >>>>>>> it says:
>>               >>>>>>>
>>               >>>>>>> Note for OS X users: running graphics applications
>>         from
>>              GHCi is no
>>               >>>>>>> longer
>>               >>>>>>> supported. Instead, one has to compile a graphics
>>         program
>>              using GHC
>>               >>>>>>> in
>>               >>>>>>> order
>>               >>>>>>> to run it (see example/GMIExamples.lhs for an
>>         example).
>>               >>>>>>>
>>               >>>>>>> I had similar problems using the Yale Euterpea music
>>              program from
>>               >>>>>>> ghci.
>>               >>>>>>> When
>>               >>>>>>> I inquired I was referred to
>>               >>>>>>> https://ghc.haskell.org/trac/__ghc/ticket/4244
>>         <https://ghc.haskell.org/trac/ghc/ticket/4244>
>>               >>>>>>> and https://ghc.haskell.org/trac/__ghc/ticket/781
>>         <https://ghc.haskell.org/trac/ghc/ticket/781>. I see that the
>>
>>               >>>>>>> latter
>>               >>>>>>> is
>>               >>>>>>> now scheduled for 7.10.1
>>               >>>>>>>
>>               >>>>>>>
>>               >>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow
>>              <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>>
>>
>>
>>               >>>>>>> wrote:
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>> It doesn't have anything about the dynamic linking
>>              changes made for
>>               >>>>>>>>> 7.8.
>>               >>>>>>>>> I think it's worth mentioning the improvements
>>         we expect
>>              to get
>>               >>>>>>>>> from
>>               >>>>>>>>> that. The highlights of the release notes do
>>         mention it,
>>              so maybe
>>               >>>>>>>>> that
>>               >>>>>>>>> suffices.
>>               >>>>>>>>>
>>               >>>>>>>>> In particular, I'm hoping that it is going to
>>         fix a lot
>>              of problems
>>               >>>>>>>>> with
>>               >>>>>>>>> using foreign libraries such as OpenGL from
>>         ghci. I could
>>              be wrong
>>               >>>>>>>>> about
>>               >>>>>>>>> that though.
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>> I'd like to understand more about what those
>>         problems are.
>>                As a
>>               >>>>>>>> data
>>               >>>>>>>> point, at Facebook we're using static linking (I
>>         compiled
>>              GHC with
>>               >>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of
>> 50
>>              3rd-party C++
>>               >>>>>>>> libraries and one gigantic shared library
>>         consisting of a
>>              ton of
>>               >>>>>>>> in-house
>>               >>>>>>>> C++ code, together with all our Haskell code into
>>         GHCi,
>>              and it works
>>               >>>>>>>> perfectly.  The key to using the static linker is
>>         to not
>>              use it for
>>               >>>>>>>> C++
>>               >>>>>>>> code
>>               >>>>>>>> - you want all your external C++ code in shared
>>         libraries
>>              and load
>>               >>>>>>>> those
>>               >>>>>>>> using the system linker.
>>               >>>>>>>>
>>               >>>>>>>> Dynamic linking has been a huge headache in GHC,
>>         and it's
>>              not clear
>>               >>>>>>>> that
>>               >>>>>>>> it's an overall improvement compared with the
>> static
>>              linker.  Now
>>               >>>>>>>> that
>>               >>>>>>>> 7.8
>>               >>>>>>>> is out of the way, it's time to have a
>>         conversation about
>>              whether we
>>               >>>>>>>> want to
>>               >>>>>>>> do dynamic linking again for 7.10, or revert to
>>         static
>>              linking.  I
>>               >>>>>>>> think
>>               >>>>>>>> Austin is going to update
>>               >>>>>>>>
>>         https://ghc.haskell.org/trac/__ghc/wiki/DynamicGhcPrograms
>>         <https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms>,
>>
>>              and then
>>               >>>>>>>> we'll
>>               >>>>>>>> see
>>               >>>>>>>> where we stand.
>>               >>>>>>>>
>>               >>>>>>>> Cheers,
>>               >>>>>>>> Simon
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton
>> Jones
>>               >>>>>>>>> <simonpj at microsoft.com
>>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>         <mailto:simonpj at microsoft.com>>
>>              <mailto:simonpj at microsoft.com
>>         <mailto:simonpj at microsoft.com> <mailto:simonpj at microsoft.com
>>         <mailto:simonpj at microsoft.com>>__>> wrote:
>>               >>>>>>>>>
>>               >>>>>>>>>        As Austin has told us, there's a draft of
>>         the *GHC
>>              Status
>>               >>>>>>>>> Report
>>               >>>>>>>>> for
>>               >>>>>>>>>        the HCAR*, here:____
>>               >>>>>>>>>
>>               >>>>>>>>>
>>         https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>>
>>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>        Have we missed out something  you have been
>>              working hard on?
>>               >>>>>>>>> Do
>>               >>>>>>>>>        take a moment to add a bullet in an
>>         appropriate
>>              place (it's
>>               >>>>>>>>> a
>>               >>>>>>>>>        wiki).  I'd like to be sure that we are
>>         giving
>>              credit to all
>>               >>>>>>>>> the
>>               >>>>>>>>>        appropriate people, so please help us fix
>>         that
>>              too.  GHC is
>>               >>>>>>>>> a
>>               >>>>>>>>> team
>>               >>>>>>>>>        effort.____
>>               >>>>>>>>>
>>               >>>>>>>>>        Deadline is 1 May I think.____
>>               >>>>>>>>>
>>               >>>>>>>>>        Thanks____
>>               >>>>>>>>>
>>               >>>>>>>>>        Simon____
>>               >>>>>>>>>
>>               >>>>>>>>>        __ __
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>           _________________________________________________
>>
>>               >>>>>>>>>        ghc-devs mailing list
>>               >>>>>>>>> ghc-devs at haskell.org
>>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>         <mailto:ghc-devs at haskell.org>>
>>              <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>>
>>
>>
>>               >>>>>>>>>
>>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>>
>>               >>>>>>>>> _________________________________________________
>>               >>>>>>>>> ghc-devs mailing list
>>               >>>>>>>>> ghc-devs at haskell.org
>>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>>         <mailto:ghc-devs at haskell.org>>
>>               >>>>>>>>>
>>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>               >>>>>>>>>
>>               >>>>>>>
>>               >>>>>>>
>>               >>>>>>> _________________________________________________
>>
>>               >>>>>>> ghc-devs mailing list
>>               >>>>>>> ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>               >>>>>>> http://www.haskell.org/__mailman/listinfo/ghc-devs
>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>               >>>>>>>
>>               >>>>>
>>               >>>
>>               >
>>              _________________________________________________
>>
>>              ghc-devs mailing list
>>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>>
>>
>>
>>
>>
>
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From marlowsd at gmail.com  Mon May  5 21:13:10 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Mon, 05 May 2014 22:13:10 +0100
Subject: GHC status report
In-Reply-To: <CAHYVw0xT9Rm-+jF45--UfqJe=g+1m4_DrcvMp1AdrH=3Y1bxpQ@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
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 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
 <CADUbQ5iJctNEwgfv8ZH3VJ1jbZ6b1tyurF6iTfeOYXkXh6vMnw@mail.gmail.com>
 <CAHYVw0ykScXsEQDKA4YjR2dDT460o1Jr5bty6u=eOEwnjAa3Qg@mail.gmail.com>
 <5367FA94.9040206@gmail.com>
 <CAHYVw0w8683qkVAeUzomLLAQMFkZj0=A6Ps97O86xsiAbsXh9Q@mail.gmail.com>
 <5367FC32.7050500@gmail.com>
 <CAHYVw0xT9Rm-+jF45--UfqJe=g+1m4_DrcvMp1AdrH=3Y1bxpQ@mail.gmail.com>
Message-ID: <5367FEE6.2000903@gmail.com>

I think the issue is really "loading static C++ libs into GHCi doesn't 
work properly", and that's true of all versions of GHC, including 7.8.

On 05/05/14 22:08, Carter Schonwald wrote:
> i don't have 7.6 setup anymore, i'll see about reproducing the issue
> later. it falls under the umbrella of "linking not working in ghci", But
> it could be that didn't try the -fshared-llvm + ghci in 7.6
>
>
> On Mon, May 5, 2014 at 5:01 PM, Simon Marlow <marlowsd at gmail.com
> <mailto:marlowsd at gmail.com>> wrote:
>
>     On 05/05/14 21:58, Carter Schonwald wrote:
>
>         no, i was saying LLVM-General when static linked to llvm doesnt
>         work. I
>         wasnt talking about ghc being dynamic or static
>
>
>     I believe you that it doesn't work.  But I think that if you use a
>     dynamically-linked llvm (i.e. the shared-llvm flag), it *should*
>     work, even with 7.6.3.  What goes wrong in that case?
>
>     Cheers,
>     Simon
>
>         merely that theres no way to get llvm-general to work on ghci in
>         7.6 afaik
>
>
>         On Mon, May 5, 2014 at 4:54 PM, Simon Marlow <marlowsd at gmail.com
>         <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>> wrote:
>
>              I don't see any reason why llvm-general with the
>         shared-llvm flag
>              shouldn't work with a statically linked GHCi (7.6.3 or 7.8 with
>              DYNAMIC_GHC_PROGRAMS=NO).  Doesn't it work?
>
>
>              On 03/05/14 02:12, Carter Schonwald wrote:
>
>                  if theres a way i can patch llvm-general so that i can
>         use it
>                  with llvm
>                  static linked into rather than dylinked, i'm all ears!
>
>                  llvm-general has to use some C++ wrappers (that in turn use
>                  extern "C"
>                  sections) to make parts of the llvm api accessible from
>         hasskell.
>
>                  I had trouble following some of the thread earlier
>         today, but is the
>                  suggestion to try building those wrappers with -fPIC
>         would make them
>                  play nice?
>
>
>                  On Fri, May 2, 2014 at 8:52 PM, Dominick Samperi
>                  <djsamperi at gmail.com <mailto:djsamperi at gmail.com>
>         <mailto:djsamperi at gmail.com <mailto:djsamperi at gmail.com>>
>                  <mailto:djsamperi at gmail.com
>         <mailto:djsamperi at gmail.com> <mailto:djsamperi at gmail.com
>         <mailto:djsamperi at gmail.com>>>> wrote:
>
>                       I posted a ticket related to this (#8371), but the
>         example
>                  provided
>                       there
>                       has no problems today for all versions of ghci that I
>                  tested (including
>                       7.6.3), provided -fno-ghci-sandbox is specified.
>         So this
>                  problem was
>                       clearly related to the threads issue.
>
>                       Today there are problems when
>         DYNAMIC_GHC_PROGRAMS=NO, but they
>                       happen later, and I have not yet narrowed this
>         down to a
>                  small example.
>                       Basically, I have an Haskell app that embeds R (as
>         in the
>                  sample code
>                       attached to the above ticket), but when it tries
>         to do some
>                  calculations
>                       it seg faults (works fine with 7.8.2).
>
>                       On Fri, May 2, 2014 at 3:45 PM, Simon Marlow
>                  <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>
>                       <mailto:marlowsd at gmail.com
>         <mailto:marlowsd at gmail.com> <mailto:marlowsd at gmail.com
>         <mailto:marlowsd at gmail.com>>>> wrote:
>                        > Can you give me a quick summary of how to
>         reproduce the
>                  problem? (not
>                        > including the GHC build steps)
>                        >
>                        > Cheers,
>                        > Simon
>                        >
>                        >
>                        > On 02/05/14 18:18, Dominick Samperi wrote:
>                        >>
>                        >> I downloaded HEAD and placed
>         DYNAMIC_GHC_PROGRAMS=NO in
>                  the "quick"
>                        >> section of mk/build.mk <http://build.mk>
>         <http://build.mk>
>                  <http://build.mk> (with BuildFlavour =
>
>                       quick), and set
>                        >> DYNAMIC_GHC_PROGRAMS=NO
>                        >> in my environment before running configure
>         (just to be
>                  sure!). Near
>                        >> the end of the build
>                        >> I saw some messages like "Warning: vectorization
>                  failure," but the
>                        >> build completed.
>                        >>
>                        >> The status at the end of configure doesn't say
>         that
>                  dynamic linking
>                        >> via RTS has been
>                        >> turned off, and I don't know how to check that
>         this is so.
>                        >> Nevertheless, I checked
>                        >> the linking issue and it is NOT fixed with
>         this build, so
>                        >> DYNAMIC_GHC_PROGRAMS=YES is required to
>         prevent the
>                  problems
>                        >> reported by me and others.
>                        >>
>                        >>
>                        >> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow
>                  <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>
>                       <mailto:marlowsd at gmail.com
>         <mailto:marlowsd at gmail.com> <mailto:marlowsd at gmail.com
>         <mailto:marlowsd at gmail.com>>>> wrote:
>                        >>>
>                        >>> On 02/05/2014 01:09, Dominick Samperi wrote:
>                        >>>
>                        >>>> If I understand your last comment correctly
>         linking
>                  to libR should
>                        >>>> continue to work, even if you revert to static
>                  linking of Haskell
>                        >>>> compiled
>                        >>>> code via RTS linker. Since you say this is
>         the way
>                  things have
>                       always
>                        >>>> been, perhaps the real explanation for why
>         7.8 fixed
>                  the issue
>                       is that
>                        >>>> some bug was fixed along the way...
>                        >>>
>                        >>>
>                        >>>
>                        >>> Indeed.  To know for sure we would have to
>         test 7.8 with
>                        >>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is
>         there a
>                  way to do
>                       that?
>                        >>>
>                        >>> Cheers,
>                        >>> Simon
>                        >>>
>                        >>>
>                        >>>
>                        >>>> Note that R is a C library, so the C++
>         issues that Carter
>                       mentions are
>                        >>>> not a factor here.
>                        >>>>
>                        >>>> Thanks,
>                        >>>> Dominick
>                        >>>>
>                        >>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow
>                       <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>
>                  <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>>> wrote:
>                        >>>>>
>                        >>>>>
>                        >>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>                        >>>>>>
>                        >>>>>>
>                        >>>>>>
>                        >>>>>> The problem with some graphics libraries
>         used via
>                  FFI (and other
>                        >>>>>> libraries
>                        >>>>>> that are not thread-safe), if I understand the
>                  situation
>                       correctly, is
>                        >>>>>> that ghci
>                        >>>>>> forks a thread when it shouldn't, causing some
>                  programs to
>                        >>>>>> miscalculate
>                        >>>>>> the available stack space (because they
>         think there
>                  is only one
>                        >>>>>> thread).
>                        >>>>>
>                        >>>>>
>                        >>>>>
>                        >>>>>>
>                        >>>>>>
>                        >>>>>> The new dynamic linking support and the flag
>                       -fno-ghci-sandbox fixes
>                        >>>>>> this problem, and I would not vote for the
>         removal
>                  of these
>                       features.
>                        >>>>>
>                        >>>>>
>                        >>>>>
>                        >>>>>
>                        >>>>> So I understand how -fno-ghci-sandbox avoids
>                  problems with GUI
>                        >>>>> libraries
>                        >>>>> that use thread-local state.  But how is
>         dynamic linking
>                       involved here?
>                        >>>>> What improved in GHC 7.8 relative to 7.6
>         for you?
>                  And could
>                       you clarify
>                        >>>>> "miscalculate the available stack space"?
>         What needs to
>                       calculate stack
>                        >>>>> space? Why? C stack space?
>                        >>>>>
>                        >>>>> We can certainly make a smoother experience
>         around
>                       -fno-ghci-sandbox
>                        >>>>> for
>                        >>>>> using GUI libraries.
>                        >>>>>
>                        >>>>>
>                        >>>>>> It is not clear to me from Simon's
>         original post
>                  how linking
>                       to all of
>                        >>>>>> those C++ libs can continue to work if dynamic
>                  linking is
>                       removed
>                        >>>>>> in 7.10? Perhaps I misunderstand what you
>         mean by
>                  "revert to
>                        >>>>>> static linking"?
>                        >>>>>
>                        >>>>>
>                        >>>>>
>                        >>>>>
>                        >>>>> When I say "revert to static linking" I
>         mean make
>                  GHCi static
>                       linked,
>                        >>>>> and
>                        >>>>> have it load Haskell code compiled for static
>                  linking using
>                       the RTS
>                        >>>>> linker
>                        >>>>> (like it did in 7.6).  Foreign libraries
>         would still be
>                       loaded using
>                        >>>>> the
>                        >>>>> system linker, as they always have been.
>                        >>>>>
>                        >>>>> To be clear, I'm not officially proposing
>         that we drop
>                       dynamic linking,
>                        >>>>> but
>                        >>>>> I think it's worthwhile exploring the
>         design space
>                  again,
>                       given that we
>                        >>>>> know
>                        >>>>> dynamic linking has been tougher than we
>         expected.
>                        >>>>>
>                        >>>>> Cheers,
>                        >>>>> Simon
>                        >>>>>
>                        >>>>>
>                        >>>>>
>                        >>>>>> Thanks,
>                        >>>>>> Dominick
>                        >>>>>>
>                        >>>>>>
>                        >>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George
>         Colpitts
>                        >>>>>> <george.colpitts at gmail.com
>         <mailto:george.colpitts at gmail.com>
>                  <mailto:george.colpitts at gmail.__com
>         <mailto:george.colpitts at gmail.com>>
>                       <mailto:george.colpitts at gmail.
>         <mailto:george.colpitts at gmail.>____com
>
>                  <mailto:george.colpitts at gmail.__com
>         <mailto:george.colpitts at gmail.com>>>> wrote:
>                        >>>>>>>
>                        >>>>>>>
>                        >>>>>>>
>                        >>>>>>> To elaborate, in the past, I had a lot of
>         problems
>                  using
>                       libraries
>                        >>>>>>> from
>                        >>>>>>> the
>                        >>>>>>> ghci prompt on the Mac but I haven't
>         tried recently.
>                        >>>>>>>
>                        >>>>>>> As an example, on the web page for the
>         book the
>                  Haskell
>                       School of
>                        >>>>>>> Expression
>                        >>>>>>> it says:
>                        >>>>>>>
>                        >>>>>>> Note for OS X users: running graphics
>         applications
>                  from
>                       GHCi is no
>                        >>>>>>> longer
>                        >>>>>>> supported. Instead, one has to compile a
>         graphics
>                  program
>                       using GHC
>                        >>>>>>> in
>                        >>>>>>> order
>                        >>>>>>> to run it (see example/GMIExamples.lhs for an
>                  example).
>                        >>>>>>>
>                        >>>>>>> I had similar problems using the Yale
>         Euterpea music
>                       program from
>                        >>>>>>> ghci.
>                        >>>>>>> When
>                        >>>>>>> I inquired I was referred to
>                        >>>>>>>
>         https://ghc.haskell.org/trac/____ghc/ticket/4244
>         <https://ghc.haskell.org/trac/__ghc/ticket/4244>
>                  <https://ghc.haskell.org/trac/__ghc/ticket/4244
>         <https://ghc.haskell.org/trac/ghc/ticket/4244>>
>                        >>>>>>> and
>         https://ghc.haskell.org/trac/____ghc/ticket/781
>         <https://ghc.haskell.org/trac/__ghc/ticket/781>
>                  <https://ghc.haskell.org/trac/__ghc/ticket/781
>         <https://ghc.haskell.org/trac/ghc/ticket/781>>. I see that the
>
>                        >>>>>>> latter
>                        >>>>>>> is
>                        >>>>>>> now scheduled for 7.10.1
>                        >>>>>>>
>                        >>>>>>>
>                        >>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow
>                       <marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>
>                  <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>
>         <mailto:marlowsd at gmail.com <mailto:marlowsd at gmail.com>>>>
>
>
>                        >>>>>>> wrote:
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>> It doesn't have anything about the
>         dynamic linking
>                       changes made for
>                        >>>>>>>>> 7.8.
>                        >>>>>>>>> I think it's worth mentioning the
>         improvements
>                  we expect
>                       to get
>                        >>>>>>>>> from
>                        >>>>>>>>> that. The highlights of the release
>         notes do
>                  mention it,
>                       so maybe
>                        >>>>>>>>> that
>                        >>>>>>>>> suffices.
>                        >>>>>>>>>
>                        >>>>>>>>> In particular, I'm hoping that it is
>         going to
>                  fix a lot
>                       of problems
>                        >>>>>>>>> with
>                        >>>>>>>>> using foreign libraries such as OpenGL from
>                  ghci. I could
>                       be wrong
>                        >>>>>>>>> about
>                        >>>>>>>>> that though.
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>> I'd like to understand more about what those
>                  problems are.
>                         As a
>                        >>>>>>>> data
>                        >>>>>>>> point, at Facebook we're using static
>         linking (I
>                  compiled
>                       GHC with
>                        >>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading
>         upwards of 50
>                       3rd-party C++
>                        >>>>>>>> libraries and one gigantic shared library
>                  consisting of a
>                       ton of
>                        >>>>>>>> in-house
>                        >>>>>>>> C++ code, together with all our Haskell
>         code into
>                  GHCi,
>                       and it works
>                        >>>>>>>> perfectly.  The key to using the static
>         linker is
>                  to not
>                       use it for
>                        >>>>>>>> C++
>                        >>>>>>>> code
>                        >>>>>>>> - you want all your external C++ code in
>         shared
>                  libraries
>                       and load
>                        >>>>>>>> those
>                        >>>>>>>> using the system linker.
>                        >>>>>>>>
>                        >>>>>>>> Dynamic linking has been a huge headache
>         in GHC,
>                  and it's
>                       not clear
>                        >>>>>>>> that
>                        >>>>>>>> it's an overall improvement compared
>         with the static
>                       linker.  Now
>                        >>>>>>>> that
>                        >>>>>>>> 7.8
>                        >>>>>>>> is out of the way, it's time to have a
>                  conversation about
>                       whether we
>                        >>>>>>>> want to
>                        >>>>>>>> do dynamic linking again for 7.10, or
>         revert to
>                  static
>                       linking.  I
>                        >>>>>>>> think
>                        >>>>>>>> Austin is going to update
>                        >>>>>>>>
>         https://ghc.haskell.org/trac/____ghc/wiki/DynamicGhcPrograms
>         <https://ghc.haskell.org/trac/__ghc/wiki/DynamicGhcPrograms>
>
>         <https://ghc.haskell.org/trac/__ghc/wiki/DynamicGhcPrograms
>         <https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms>>,
>
>                       and then
>                        >>>>>>>> we'll
>                        >>>>>>>> see
>                        >>>>>>>> where we stand.
>                        >>>>>>>>
>                        >>>>>>>> Cheers,
>                        >>>>>>>> Simon
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon
>         Peyton Jones
>                        >>>>>>>>> <simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>
>                  <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>> <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>
>                  <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>>__>
>                       <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>
>                  <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>> <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>
>                  <mailto:simonpj at microsoft.com
>         <mailto:simonpj at microsoft.com>>__>__>> wrote:
>                        >>>>>>>>>
>                        >>>>>>>>>        As Austin has told us, there's a
>         draft of
>                  the *GHC
>                       Status
>                        >>>>>>>>> Report
>                        >>>>>>>>> for
>                        >>>>>>>>>        the HCAR*, here:____
>                        >>>>>>>>>
>                        >>>>>>>>>
>         https://ghc.haskell.org/trac/____ghc/wiki/Status/May14____
>         <https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____>
>
>
>         <https://ghc.haskell.org/trac/__ghc/wiki/Status/May14____
>         <https://ghc.haskell.org/trac/ghc/wiki/Status/May14____>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>        Have we missed out something
>           you have been
>                       working hard on?
>                        >>>>>>>>> Do
>                        >>>>>>>>>        take a moment to add a bullet in an
>                  appropriate
>                       place (it's
>                        >>>>>>>>> a
>                        >>>>>>>>>        wiki).  I'd like to be sure that
>         we are
>                  giving
>                       credit to all
>                        >>>>>>>>> the
>                        >>>>>>>>>        appropriate people, so please
>         help us fix
>                  that
>                       too.  GHC is
>                        >>>>>>>>> a
>                        >>>>>>>>> team
>                        >>>>>>>>>        effort.____
>                        >>>>>>>>>
>                        >>>>>>>>>        Deadline is 1 May I think.____
>                        >>>>>>>>>
>                        >>>>>>>>>        Thanks____
>                        >>>>>>>>>
>                        >>>>>>>>>        Simon____
>                        >>>>>>>>>
>                        >>>>>>>>>        __ __
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                    ___________________________________________________
>
>                        >>>>>>>>>        ghc-devs mailing list
>                        >>>>>>>>> ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>>
>                       <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>>__>
>
>
>                        >>>>>>>>>
>         http://www.haskell.org/____mailman/listinfo/ghc-devs
>         <http://www.haskell.org/__mailman/listinfo/ghc-devs>
>                  <http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>                        >>>>>>>>>
>         ___________________________________________________
>                        >>>>>>>>> ghc-devs mailing list
>                        >>>>>>>>> ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>>
>                        >>>>>>>>>
>         http://www.haskell.org/____mailman/listinfo/ghc-devs
>         <http://www.haskell.org/__mailman/listinfo/ghc-devs>
>                  <http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>>
>                        >>>>>>>>>
>                        >>>>>>>
>                        >>>>>>>
>                        >>>>>>>
>         ___________________________________________________
>
>                        >>>>>>> ghc-devs mailing list
>                        >>>>>>> ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>>
>                        >>>>>>>
>         http://www.haskell.org/____mailman/listinfo/ghc-devs
>         <http://www.haskell.org/__mailman/listinfo/ghc-devs>
>                  <http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>>
>                        >>>>>>>
>                        >>>>>
>                        >>>
>                        >
>                       ___________________________________________________
>
>                       ghc-devs mailing list
>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         <mailto:ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>>
>                  <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org> <mailto:ghc-devs at haskell.org
>         <mailto:ghc-devs at haskell.org>>>
>         http://www.haskell.org/____mailman/listinfo/ghc-devs
>         <http://www.haskell.org/__mailman/listinfo/ghc-devs>
>                  <http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>>
>
>
>
>
>
>


From ezyang at mit.edu  Sun May  4 10:33:14 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Sun, 04 May 2014 03:33:14 -0700
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
Message-ID: <1399199455-sup-5590@sabre>

Hey Johan,

Superficial comments for now.  Are you planning on supporting word
variants?

Callish mach-ops, as generated from primops, are not sunk across,
but this behavior today is accidental (see Note [Foreign calls clobber
heap]), so be sure to adjust the notes.

Edward

Excerpts from Johan Tibell's message of 2014-05-04 03:10:12 -0700:
> Hi,
> 
> I found myself needing atomic operations on basic, mutable numeric values.
> I wrote a short design doc that I'd like feedback on:
> 
> https://ghc.haskell.org/trac/ghc/wiki/AtomicPrimops
> 
> I will try to implement these for 7.10.
> 
> -- Johan

From simonpj at microsoft.com  Tue May  6 12:06:54 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Tue, 6 May 2014 12:06:54 +0000
Subject: GHC rewrite rules and constructor wrappers?
In-Reply-To: <CAD6SzRLH7MJeo88CidK7NPXzrOHkSrz0r34a4V8dRW=MvoccmQ@mail.gmail.com>
References: <CAD6SzRLH7MJeo88CidK7NPXzrOHkSrz0r34a4V8dRW=MvoccmQ@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C0C8788@DB3PRD3001MB020.064d.mgd.msft.net>

Can you give an example?

Generally the wrapper does stuff like evaluating arguments for a strict constructor, and unboxing UNPACKed fields.  So if you have
            data T = MkT ! {-# UNPACK #-} Int

the wrapper looks something like this

            $WMkT x = case x of I# y -> MkT y

That is, it evaluates and unboxes the argument.   The source-language reference to MkT gets replaced with a call to the wrapper.

In a RULE suppose you write
            f (MkT x) = ?blah?
and have a call
            ?f (MkT e)?.

After replacing MkT by its wrapper call we?d have
            RULE  f ($WMkT x) = ...blah...
and      ....f ($WMkT e)....

Now if the wrapper for MkT is inlined, we?ll see (f (case e of ?)) which won?t match well!

At the moment, the very first run of the simplifier has almost all inlinings switched off, so the rule will indeed have a chance to fire.  But (a) I want to change the early simplifier run to do more inlining, and (b) in any case it all fails if you had, say
            ...f (h x)....
where
            h x = $WMkT e
Here you want h to inline, exposing the opportunity for the rule to fire.  I don?t know if this is the source of your problem, but it might be.

The usual solution to the interaction between RULES and inlining is to delay inlining until the rule has had a chance to fire. But in this case the inlining isn?t under your control: it?s the wrapper for MkT.

Something very similar happens for the wrappers after strictness analysis; if an (automatically generated, INLINE) wrapper is inlined too early, a rule might not fire.  The crude but effective solution for strictness wappers is to give them an INLINE[0] pragma; ie don?t inline till phase 0.  Maybe we should do the same for constructor wrappers.


That was probably more than you wanted to know.  Do send a concrete example.  Thanks


Simon

From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Conal Elliott
Sent: 29 April 2014 23:03
To: glasgow-haskell-users at haskell.org<mailto:glasgow-haskell-users at haskell.org>; ghc-devs at haskell.org<mailto:ghc-devs at haskell.org>
Subject: GHC rewrite rules and constructor wrappers?

I'm trying to sort out the relationship of GHC rewrite rules and constructor wrappers. I have rules like

> "reify/(:<)" reifyEP (:<) = kPrim VecSP

This rule seems to fire for `reifyEP ($W:<)` rather than `reifyEP (:<)`. If I'm tracking (uncertain), `($W:<)` inlines to `(:<)`. Sometimes I'm able to preserve the `$W` form, but sometimes I get the bare form when inlining a definition from another already-compiled module. In those cases, I don't know how to get my rules to fire.

Advice and explanation appreciated, including pointers explanations of the role of these wrappers in GHC.
-- Conal

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From yo.eight at gmail.com  Tue May  6 17:01:39 2014
From: yo.eight at gmail.com (Yorick Laupa)
Date: Tue, 06 May 2014 19:01:39 +0200
Subject: Automating Windows setup for development
In-Reply-To: <535677C6.8010309@gmail.com>
References: <CACG=oWEiRQESnk5tFSCC7tYj298kYF4XAvHJLf-sux1smH+3hQ@mail.gmail.com>
 <CAEs96n3J5=ccCb8hovme6_7Jtt=Tpz5nr+7rgJy7P1Fi5mPC7g@mail.gmail.com>
 <535677C6.8010309@gmail.com>
Message-ID: <53691573.9070606@gmail.com>

We have a case at work when we have to add GHC mingw to PATH. I don't 
know if it's ghc related or cabal.
  For instance, We can't build cabal-install with a ld more recent than 
GHC mingw one.

We tried with ld version 2.4. GHC 7.8.2 use a version like 2.2.

Build ends with: "Setup.exe: command not found" whereas Setup.exe is 
located in current directory

When we add GHC mingw to PATH, everything is working properly

Regards,
Yorick

On 04/22/2014 04:08 PM, Simon Marlow wrote:
> This reminds me: the instructions shouldn't be recommending that 
> people add GHC's own mingw tools to their PATH.  The build should work 
> without that, and indeed we want to know if the build is using gcc 
> from PATH because that's a bug (and could cause real problems).
>
> Cheers,
> Simon
>
> On 22/04/2014 02:12, Austin Seipp wrote:
>> This is really cool, thanks!
>>
>> If you wouldn't mind, perhaps that page should be updated (the MSYS2
>> page) to point to your Powershell script. That would be really useful
>> and make it much easier to find for people who don't follow the
>> mailing list.
>>
>> On Mon, Apr 21, 2014 at 8:03 PM, Niklas Larsson 
>> <metaniklas at gmail.com> wrote:
>>> Hi!
>>>
>>> I have made a Powershell script that sets up a GHC build environment on
>>> Windows from scratch. It's at https://github.com/melted/getghc. It 
>>> largely
>>> follows the instructions at
>>> https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows/MSYS2. 
>>> It
>>> has no dependencies aside from Powershell 3.0.
>>>
>>> The reason I made it was to make it easier to set up a build bot on 
>>> a clean
>>> machine. But it's probably generally useful for people who want to 
>>> develop
>>> GHC on Windows.
>>>
>>> Usage:
>>> - Put the script in an empty directory
>>> - Run it
>>> - Hope for the best
>>>
>>> Potential problems:
>>> - If Python 2.7 is already installed and not on the path, the script 
>>> wont
>>> install it, and msys wont pick up the path. Solution: Add the path 
>>> to python
>>> in the control panel.
>>> - Powershell wont run unsigned scripts by default. The error message 
>>> will
>>> give a hint how to disable that. I will add a signed version as soon 
>>> as I
>>> can figure out how.
>>>
>>> Niklas
>>>
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>>
>>
>>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>


From conal at conal.net  Wed May  7 03:50:28 2014
From: conal at conal.net (Conal Elliott)
Date: Tue, 6 May 2014 20:50:28 -0700
Subject: Simplifying casts and beta-reduction
Message-ID: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>

I'm looking for tools to help simplify Core terms that involve casts. In
particular, I want to beta-reduce when the function is wrapped with a cast.
Do the GHC sources have such utility functions?

Here is an example of a lambda expression with a cast. In context, it's
applied to two type arguments and two dictionary arguments and returns a
function of one more argument. (The function `(-->)` is defined as `(f -->
h) g = h . g . f`.)

> ((\ (@ a8) (@ b)
>     ($dEncodable  :: Encodable a8)
>     ($dEncodable1 :: Encodable b) ->
>     case $dEncodable of _
>       D:Encodable _ tpl_B3 ->
>         case $dEncodable1 of _
>           D:Encodable tpl_B2 _ ->
>             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3
eta))
>     )
>  `cast` (forall a8 b.
>          <Encodable a8>_R
>          -> <Encodable b>_R
>          -> <a8 -> b>_R
>          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>          :: (forall a8 b. (Encodable a8, Encodable b) =>
>              (a8 -> b) -> Encode a8 -> Encode b)
>               ~#
>             (forall a8 b. (Encodable a8, Encodable b) =>
>              (a8 -> b) -> Encode (a8 -> b))))

I can imagine pushing the `cast` down through the type lambdas while
stripping off `forall` coercions, then pushing the remaining `cast` through
the dictionary arguments, while stripping off the outer `<Encodable t>_R
->` coercion wrappers, and then pushing the cast into the `case`
alternatives and the lambda body, leaving something like

>  (\ (@ a8) (@ b)
>     ($dEncodable  :: Encodable a8)
>     ($dEncodable1 :: Encodable b) ->
>      case $dEncodable of _
>        D:Encodable _ tpl_B3 ->
>          case $dEncodable1 of _
>            D:Encodable tpl_B2 _ ->
>              \ (g :: a8 -> b) ->
>                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
>                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>                        :: (Encode a8 -> Encode b)
>                             ~#
>                           (Encode (a8 -> b))))

Now, given type, dictionary, and function arguments, I think we could
beta-reduce.

Before I try implementing these transformations, does something like them
already exist in GHC?

Thanks, -- Conal
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From conal at conal.net  Wed May  7 03:51:43 2014
From: conal at conal.net (Conal Elliott)
Date: Tue, 6 May 2014 20:51:43 -0700
Subject: Simplifying casts and beta-reduction
In-Reply-To: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
Message-ID: <CAD6SzRL3BtpK1ibD0ATKKOnhqv_wKmsipFDXJeDp3kmFGsj_5w@mail.gmail.com>

P.S. Never mind the remark about `(-->)`. I inlined and simplified it away
in the example code.


On Tue, May 6, 2014 at 8:50 PM, Conal Elliott <conal at conal.net> wrote:

> I'm looking for tools to help simplify Core terms that involve casts. In
> particular, I want to beta-reduce when the function is wrapped with a cast.
> Do the GHC sources have such utility functions?
>
> Here is an example of a lambda expression with a cast. In context, it's
> applied to two type arguments and two dictionary arguments and returns a
> function of one more argument. (The function `(-->)` is defined as `(f -->
> h) g = h . g . f`.)
>
> > ((\ (@ a8) (@ b)
> >     ($dEncodable  :: Encodable a8)
> >     ($dEncodable1 :: Encodable b) ->
> >     case $dEncodable of _
> >       D:Encodable _ tpl_B3 ->
> >         case $dEncodable1 of _
> >           D:Encodable tpl_B2 _ ->
> >             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3
> eta))
> >     )
> >  `cast` (forall a8 b.
> >          <Encodable a8>_R
> >          -> <Encodable b>_R
> >          -> <a8 -> b>_R
> >          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
> >          :: (forall a8 b. (Encodable a8, Encodable b) =>
> >              (a8 -> b) -> Encode a8 -> Encode b)
> >               ~#
> >             (forall a8 b. (Encodable a8, Encodable b) =>
> >              (a8 -> b) -> Encode (a8 -> b))))
>
> I can imagine pushing the `cast` down through the type lambdas while
> stripping off `forall` coercions, then pushing the remaining `cast` through
> the dictionary arguments, while stripping off the outer `<Encodable t>_R
> ->` coercion wrappers, and then pushing the cast into the `case`
> alternatives and the lambda body, leaving something like
>
> >  (\ (@ a8) (@ b)
> >     ($dEncodable  :: Encodable a8)
> >     ($dEncodable1 :: Encodable b) ->
> >      case $dEncodable of _
> >        D:Encodable _ tpl_B3 ->
> >          case $dEncodable1 of _
> >            D:Encodable tpl_B2 _ ->
> >              \ (g :: a8 -> b) ->
> >                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
> >                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
> >                        :: (Encode a8 -> Encode b)
> >                             ~#
> >                           (Encode (a8 -> b))))
>
> Now, given type, dictionary, and function arguments, I think we could
> beta-reduce.
>
> Before I try implementing these transformations, does something like them
> already exist in GHC?
>
> Thanks, -- Conal
>
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From djsamperi at gmail.com  Wed May  7 04:11:48 2014
From: djsamperi at gmail.com (Dominick Samperi)
Date: Wed, 7 May 2014 00:11:48 -0400
Subject: GHC status report
In-Reply-To: <5367FB82.6050001@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>
 <536128AF.7080209@gmail.com>
 <CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>
 <CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>
 <5362BC24.9030101@gmail.com>
 <CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>
 <5363990D.5080200@gmail.com>
 <CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>
 <5363F5E5.6040004@gmail.com>
 <CADUbQ5iwejadOJjrkN-p+FWV-VPRHDBXGtc7rrc5j-+PBGCmrg@mail.gmail.com>
 <5367FB82.6050001@gmail.com>
Message-ID: <CADUbQ5h8nUL4VP3OocVf0xD+CoC5S22z0Dc9+wvnJGfMZP3YUA@mail.gmail.com>

OK, so if I understand correctly, there is no point trying to
narrow down my issue further as it is not supposed to work
with DYNAMIC_GHC_PROGRAMS=NO (because this disables
use of the system linker). Furthermore, if the plan to disable
some form of GHC dynamic linkage is carried out, this should
not affect how external C/C++ libs are linked to (using the
system linker). From other comments in this thread it
appears that there may be problems linking to C++ libs
that require static initialization.


On Mon, May 5, 2014 at 4:58 PM, Simon Marlow <marlowsd at gmail.com> wrote:
> On 03/05/14 04:15, Dominick Samperi wrote:
>>
>> I'm trying to understand the dynamic linking situation with the help of
>> https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-7.8, and according
>> to this information I need to specify DYNAMIC_GHC_PROGRAMS=YES
>> for ghci to use the system linker. I don't understand why you suggested
>> I test with DYNAMIC_GHC_PROGRAMS=NO?
>
>
> The question I'm trying to answer is "what stops working if we use
> DYNAMIC_GHC_PROGRAMS=NO?".  So that's why I'm interested in what happens if
> you set this option.
>
> Thanks for your help!
>
> Cheers,
> Simon
>
>
>
>> Another interesting twist is that my experience under Windows
>> is the opposite of the negative experience described on this
>> page. What I mean by this is more versions of ghci seem to
>> work under Windows (correctly linking to R.dll) than work
>> under Linux!
>>
>>
>> On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>
>>> Can you give me a quick summary of how to reproduce the problem? (not
>>> including the GHC build steps)
>>>
>>> Cheers,
>>> Simon
>>>
>>>
>>> On 02/05/14 18:18, Dominick Samperi wrote:
>>>>
>>>>
>>>> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
>>>> section of mk/build.mk (with BuildFlavour = quick), and set
>>>> DYNAMIC_GHC_PROGRAMS=NO
>>>> in my environment before running configure (just to be sure!). Near
>>>> the end of the build
>>>> I saw some messages like "Warning: vectorization failure," but the
>>>> build completed.
>>>>
>>>> The status at the end of configure doesn't say that dynamic linking
>>>> via RTS has been
>>>> turned off, and I don't know how to check that this is so.
>>>> Nevertheless, I checked
>>>> the linking issue and it is NOT fixed with this build, so
>>>> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>>>> reported by me and others.
>>>>
>>>>
>>>> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>
>>>>>
>>>>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>>>>
>>>>>> If I understand your last comment correctly linking to libR should
>>>>>> continue to work, even if you revert to static linking of Haskell
>>>>>> compiled
>>>>>> code via RTS linker. Since you say this is the way things have always
>>>>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>>>>>> some bug was fixed along the way...
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Indeed.  To know for sure we would have to test 7.8 with
>>>>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>>>>>
>>>>> Cheers,
>>>>> Simon
>>>>>
>>>>>
>>>>>
>>>>>> Note that R is a C library, so the C++ issues that Carter mentions are
>>>>>> not a factor here.
>>>>>>
>>>>>> Thanks,
>>>>>> Dominick
>>>>>>
>>>>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>> wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> The problem with some graphics libraries used via FFI (and other
>>>>>>>> libraries
>>>>>>>> that are not thread-safe), if I understand the situation correctly,
>>>>>>>> is
>>>>>>>> that ghci
>>>>>>>> forks a thread when it shouldn't, causing some programs to
>>>>>>>> miscalculate
>>>>>>>> the available stack space (because they think there is only one
>>>>>>>> thread).
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>>>>>> this problem, and I would not vote for the removal of these
>>>>>>>> features.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>>>>>>> libraries
>>>>>>> that use thread-local state.  But how is dynamic linking involved
>>>>>>> here?
>>>>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you
>>>>>>> clarify
>>>>>>> "miscalculate the available stack space"? What needs to calculate
>>>>>>> stack
>>>>>>> space? Why? C stack space?
>>>>>>>
>>>>>>> We can certainly make a smoother experience around -fno-ghci-sandbox
>>>>>>> for
>>>>>>> using GUI libraries.
>>>>>>>
>>>>>>>
>>>>>>>> It is not clear to me from Simon's original post how linking to all
>>>>>>>> of
>>>>>>>> those C++ libs can continue to work if dynamic linking is removed
>>>>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>>>>>> static linking"?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> When I say "revert to static linking" I mean make GHCi static linked,
>>>>>>> and
>>>>>>> have it load Haskell code compiled for static linking using the RTS
>>>>>>> linker
>>>>>>> (like it did in 7.6).  Foreign libraries would still be loaded using
>>>>>>> the
>>>>>>> system linker, as they always have been.
>>>>>>>
>>>>>>> To be clear, I'm not officially proposing that we drop dynamic
>>>>>>> linking,
>>>>>>> but
>>>>>>> I think it's worthwhile exploring the design space again, given that
>>>>>>> we
>>>>>>> know
>>>>>>> dynamic linking has been tougher than we expected.
>>>>>>>
>>>>>>> Cheers,
>>>>>>> Simon
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Dominick
>>>>>>>>
>>>>>>>>
>>>>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>>>>>> <george.colpitts at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> To elaborate, in the past, I had a lot of problems using libraries
>>>>>>>>> from
>>>>>>>>> the
>>>>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>>>>>
>>>>>>>>> As an example, on the web page for the book the Haskell School of
>>>>>>>>> Expression
>>>>>>>>> it says:
>>>>>>>>>
>>>>>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>>>>>> longer
>>>>>>>>> supported. Instead, one has to compile a graphics program using GHC
>>>>>>>>> in
>>>>>>>>> order
>>>>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>>>>>
>>>>>>>>> I had similar problems using the Yale Euterpea music program from
>>>>>>>>> ghci.
>>>>>>>>> When
>>>>>>>>> I inquired I was referred to
>>>>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
>>>>>>>>> latter
>>>>>>>>> is
>>>>>>>>> now scheduled for 7.10.1
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> It doesn't have anything about the dynamic linking changes made
>>>>>>>>>>> for
>>>>>>>>>>> 7.8.
>>>>>>>>>>> I think it's worth mentioning the improvements we expect to get
>>>>>>>>>>> from
>>>>>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>>>>>> that
>>>>>>>>>>> suffices.
>>>>>>>>>>>
>>>>>>>>>>> In particular, I'm hoping that it is going to fix a lot of
>>>>>>>>>>> problems
>>>>>>>>>>> with
>>>>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be
>>>>>>>>>>> wrong
>>>>>>>>>>> about
>>>>>>>>>>> that though.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I'd like to understand more about what those problems are.  As a
>>>>>>>>>> data
>>>>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party
>>>>>>>>>> C++
>>>>>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>>>>>> in-house
>>>>>>>>>> C++ code, together with all our Haskell code into GHCi, and it
>>>>>>>>>> works
>>>>>>>>>> perfectly.  The key to using the static linker is to not use it
>>>>>>>>>> for
>>>>>>>>>> C++
>>>>>>>>>> code
>>>>>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>>>>>> those
>>>>>>>>>> using the system linker.
>>>>>>>>>>
>>>>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not
>>>>>>>>>> clear
>>>>>>>>>> that
>>>>>>>>>> it's an overall improvement compared with the static linker.  Now
>>>>>>>>>> that
>>>>>>>>>> 7.8
>>>>>>>>>> is out of the way, it's time to have a conversation about whether
>>>>>>>>>> we
>>>>>>>>>> want to
>>>>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>>>>>> think
>>>>>>>>>> Austin is going to update
>>>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>>>>>> we'll
>>>>>>>>>> see
>>>>>>>>>> where we stand.
>>>>>>>>>>
>>>>>>>>>> Cheers,
>>>>>>>>>> Simon
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>>>>>
>>>>>>>>>>>         As Austin has told us, there's a draft of the *GHC Status
>>>>>>>>>>> Report
>>>>>>>>>>> for
>>>>>>>>>>>         the HCAR*, here:____
>>>>>>>>>>>
>>>>>>>>>>>         https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>         Have we missed out something  you have been working hard
>>>>>>>>>>> on?
>>>>>>>>>>> Do
>>>>>>>>>>>         take a moment to add a bullet in an appropriate place
>>>>>>>>>>> (it's
>>>>>>>>>>> a
>>>>>>>>>>>         wiki).  I'd like to be sure that we are giving credit to
>>>>>>>>>>> all
>>>>>>>>>>> the
>>>>>>>>>>>         appropriate people, so please help us fix that too.  GHC
>>>>>>>>>>> is
>>>>>>>>>>> a
>>>>>>>>>>> team
>>>>>>>>>>>         effort.____
>>>>>>>>>>>
>>>>>>>>>>>         Deadline is 1 May I think.____
>>>>>>>>>>>
>>>>>>>>>>>         Thanks____
>>>>>>>>>>>
>>>>>>>>>>>         Simon____
>>>>>>>>>>>
>>>>>>>>>>>         __ __
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>         _______________________________________________
>>>>>>>>>>>         ghc-devs mailing list
>>>>>>>>>>>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>>>>>         http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> ghc-devs mailing list
>>>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> ghc-devs mailing list
>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>
>>>>>>>
>>>>>
>>>
>

From mail at joachim-breitner.de  Wed May  7 07:27:29 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Wed, 07 May 2014 09:27:29 +0200
Subject: Validate failures
In-Reply-To: <1399147687.19761.1.camel@kirk>
References: <1399147687.19761.1.camel@kirk>
Message-ID: <1399447649.2258.1.camel@kirk>

Hi,

I?m still seeing these failures. Am I the only one?

Am Samstag, den 03.05.2014, 22:08 +0200 schrieb Joachim Breitner:
> I?m seeing these failures on travis. Anyone feeling responsible?
> 
> master:
>         *** unexpected failure for cc004(normal)
>         *** unexpected failure for cgrun051(normal)

If travis is not mistaken, this was somehow caused by 
Austin?s "Remove external core" commit
http://git.haskell.org/ghc.git/commit/5bf22f06ef71f61094de7564dee770f136d5481a



Also this is still valid:

> ghc-7.8:
> 
> Unexpected failures:
>    annotations/should_compile/th  annth_compunits [bad exit code] (normal)
>    annotations/should_compile/th  annth_make [bad stdout] (normal)
> 
> Please merge 0fe726829d468badf830dd82bc296832d709733b into ghc-7.8 (this
> annotates the tests to require have_dynamic())


Greetings,
Joachim

-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From simonpj at microsoft.com  Wed May  7 08:28:49 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Wed, 7 May 2014 08:28:49 +0000
Subject: Simplifying casts and beta-reduction
In-Reply-To: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>

Absolutely. There?s a whole module that does this: OptCoercion.  If you want to see what programs look like without coercion optimisation, try ?fno-opt-coercion.

The rules are described in our paper Evidence normalization in System FC: http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/

I hope that?s useful.

Simon

From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Conal Elliott
Sent: 07 May 2014 04:50
To: ghc-devs at haskell.org
Subject: Simplifying casts and beta-reduction

I'm looking for tools to help simplify Core terms that involve casts. In particular, I want to beta-reduce when the function is wrapped with a cast. Do the GHC sources have such utility functions?

Here is an example of a lambda expression with a cast. In context, it's applied to two type arguments and two dictionary arguments and returns a function of one more argument. (The function `(-->)` is defined as `(f --> h) g = h . g . f`.)

> ((\ (@ a8) (@ b)
>     ($dEncodable  :: Encodable a8)
>     ($dEncodable1 :: Encodable b) ->
>     case $dEncodable of _
>       D:Encodable _ tpl_B3 ->
>         case $dEncodable1 of _
>           D:Encodable tpl_B2 _ ->
>             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta))
>     )
>  `cast` (forall a8 b.
>          <Encodable a8>_R
>          -> <Encodable b>_R
>          -> <a8 -> b>_R
>          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>          :: (forall a8 b. (Encodable a8, Encodable b) =>
>              (a8 -> b) -> Encode a8 -> Encode b)
>               ~#
>             (forall a8 b. (Encodable a8, Encodable b) =>
>              (a8 -> b) -> Encode (a8 -> b))))

I can imagine pushing the `cast` down through the type lambdas while stripping off `forall` coercions, then pushing the remaining `cast` through the dictionary arguments, while stripping off the outer `<Encodable t>_R ->` coercion wrappers, and then pushing the cast into the `case` alternatives and the lambda body, leaving something like

>  (\ (@ a8) (@ b)
>     ($dEncodable  :: Encodable a8)
>     ($dEncodable1 :: Encodable b) ->
>      case $dEncodable of _
>        D:Encodable _ tpl_B3 ->
>          case $dEncodable1 of _
>            D:Encodable tpl_B2 _ ->
>              \ (g :: a8 -> b) ->
>                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
>                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>                        :: (Encode a8 -> Encode b)
>                             ~#
>                           (Encode (a8 -> b))))

Now, given type, dictionary, and function arguments, I think we could beta-reduce.

Before I try implementing these transformations, does something like them already exist in GHC?
Thanks, -- Conal
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From mail at joachim-breitner.de  Wed May  7 12:54:41 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Wed, 07 May 2014 14:54:41 +0200
Subject: Bugsquashing at ZuriHac
Message-ID: <1399467281.2258.33.camel@kirk>

Dear fellow deverlopers,

I?ll be attending ZuriHac in a month time, without a project of my own
that I plan to pursue. Hence I?m considering to run a ?GHC bug
squashing? project there. Besides getting bugs squashed, this should
hopefully attract new contributors and allow us to teach them the ropes
and tricks and the need for notes efficiently by shoulder-surfing and
face-to-face discussions.

Who of you is going to attend ZuriHac as well and will want to join me
in managing this project?

Also, this means its a good time to start tagging tickets as suitable
for beginners. I know we have a list somewhere, but googling for "ghc
easy tickets" does not find it... but clicking through the wiki I find
https://ghc.haskell.org/trac/ghc/wiki/Newcomers#Fixingabug
which is unfortunately quite small.

I?ll also look for tickets of difficulty easy and moderate.

Greetings,
Joachim


-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
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From conal at conal.net  Wed May  7 20:02:14 2014
From: conal at conal.net (Conal Elliott)
Date: Wed, 7 May 2014 13:02:14 -0700
Subject: Simplifying casts and beta-reduction
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>

Very useful, indeed! Exactly what I was looking for. Thanks, Simon. Now
I've read the evidence normalization and the deferred types paper, and I
have a much better understanding of what's going on.

-- Conal



On Wed, May 7, 2014 at 1:28 AM, Simon Peyton Jones <simonpj at microsoft.com>wrote:

>  Absolutely. There?s a whole module that does this: OptCoercion.  If you
> want to see what programs look like without coercion optimisation, try
> ?fno-opt-coercion.
>
>
>
> The rules are described in our paper *Evidence normalization in System
> FC: http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/
> <http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/>*
>
>
>
> I hope that?s useful.
>
>
>
> Simon
>
>
>
> *From:* ghc-devs [mailto:ghc-devs-bounces at haskell.org] *On Behalf Of *Conal
> Elliott
> *Sent:* 07 May 2014 04:50
> *To:* ghc-devs at haskell.org
> *Subject:* Simplifying casts and beta-reduction
>
>
>
> I'm looking for tools to help simplify Core terms that involve casts. In
> particular, I want to beta-reduce when the function is wrapped with a cast.
> Do the GHC sources have such utility functions?
>
> Here is an example of a lambda expression with a cast. In context, it's
> applied to two type arguments and two dictionary arguments and returns a
> function of one more argument. (The function `(-->)` is defined as `(f -->
> h) g = h . g . f`.)
>
> > ((\ (@ a8) (@ b)
> >     ($dEncodable  :: Encodable a8)
> >     ($dEncodable1 :: Encodable b) ->
> >     case $dEncodable of _
> >       D:Encodable _ tpl_B3 ->
> >         case $dEncodable1 of _
> >           D:Encodable tpl_B2 _ ->
> >             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3
> eta))
> >     )
> >  `cast` (forall a8 b.
> >          <Encodable a8>_R
> >          -> <Encodable b>_R
> >          -> <a8 -> b>_R
> >          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
> >          :: (forall a8 b. (Encodable a8, Encodable b) =>
> >              (a8 -> b) -> Encode a8 -> Encode b)
> >               ~#
> >             (forall a8 b. (Encodable a8, Encodable b) =>
> >              (a8 -> b) -> Encode (a8 -> b))))
>
> I can imagine pushing the `cast` down through the type lambdas while
> stripping off `forall` coercions, then pushing the remaining `cast` through
> the dictionary arguments, while stripping off the outer `<Encodable t>_R
> ->` coercion wrappers, and then pushing the cast into the `case`
> alternatives and the lambda body, leaving something like
>
> >  (\ (@ a8) (@ b)
> >     ($dEncodable  :: Encodable a8)
> >     ($dEncodable1 :: Encodable b) ->
> >      case $dEncodable of _
> >        D:Encodable _ tpl_B3 ->
> >          case $dEncodable1 of _
> >            D:Encodable tpl_B2 _ ->
> >              \ (g :: a8 -> b) ->
> >                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
> >                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
> >                        :: (Encode a8 -> Encode b)
> >                             ~#
> >                           (Encode (a8 -> b))))
>
> Now, given type, dictionary, and function arguments, I think we could
> beta-reduce.
>
> Before I try implementing these transformations, does something like them
> already exist in GHC?
>
> Thanks, -- Conal
>
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From ezyang at mit.edu  Wed May  7 07:32:24 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Wed, 07 May 2014 00:32:24 -0700
Subject: Validate failures
In-Reply-To: <1399447649.2258.1.camel@kirk>
References: <1399147687.19761.1.camel@kirk> <1399447649.2258.1.camel@kirk>
Message-ID: <1399447851-sup-8605@sabre>

Excerpts from Joachim Breitner's message of 2014-05-07 00:27:29 -0700:
> Hi,
> 
> I?m still seeing these failures. Am I the only one?

I'm seeing them.

Edward

> Am Samstag, den 03.05.2014, 22:08 +0200 schrieb Joachim Breitner:
> > I?m seeing these failures on travis. Anyone feeling responsible?
> > 
> > master:
> >         *** unexpected failure for cc004(normal)
> >         *** unexpected failure for cgrun051(normal)
> 
> If travis is not mistaken, this was somehow caused by 
> Austin?s "Remove external core" commit
> http://git.haskell.org/ghc.git/commit/5bf22f06ef71f61094de7564dee770f136d5481a
> 
> Also this is still valid:
> 
> > ghc-7.8:
> > 
> > Unexpected failures:
> >    annotations/should_compile/th  annth_compunits [bad exit code] (normal)
> >    annotations/should_compile/th  annth_make [bad stdout] (normal)
> > 
> > Please merge 0fe726829d468badf830dd82bc296832d709733b into ghc-7.8 (this
> > annotates the tests to require have_dynamic())
> 
> 
> Greetings,
> Joachim
> 

From conal at conal.net  Thu May  8 03:18:50 2014
From: conal at conal.net (Conal Elliott)
Date: Wed, 7 May 2014 20:18:50 -0700
Subject: Simplifying casts and beta-reduction
In-Reply-To: <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>
Message-ID: <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>

I'm still sorting through how to optimize these almost-beta-redexes in the
form `((\ x -> u) |> co) v`, shifting coercions to enable beta-reduction
(as described in section 3.1 of "Evidence normalization"). Is it done by
`simplCast` (with help from `simplCoercion`), as called indirectly from
`simplifyExpr` in `SimplCore`? I think I'm now calling `simplifyExpr` from
HERMIT but I'm not getting the cast-shifting I'm looking for.

-- Conal


On Wed, May 7, 2014 at 1:02 PM, Conal Elliott <conal at conal.net> wrote:

> Very useful, indeed! Exactly what I was looking for. Thanks, Simon. Now
> I've read the evidence normalization and the deferred types paper, and I
> have a much better understanding of what's going on.
>
> -- Conal
>
>
>
> On Wed, May 7, 2014 at 1:28 AM, Simon Peyton Jones <simonpj at microsoft.com>wrote:
>
>>  Absolutely. There?s a whole module that does this: OptCoercion.  If you
>> want to see what programs look like without coercion optimisation, try
>> ?fno-opt-coercion.
>>
>>
>>
>> The rules are described in our paper *Evidence normalization in System
>> FC: http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/
>> <http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/>*
>>
>>
>>
>> I hope that?s useful.
>>
>>
>>
>> Simon
>>
>>
>>
>> *From:* ghc-devs [mailto:ghc-devs-bounces at haskell.org] *On Behalf Of *Conal
>> Elliott
>> *Sent:* 07 May 2014 04:50
>> *To:* ghc-devs at haskell.org
>> *Subject:* Simplifying casts and beta-reduction
>>
>>
>>
>> I'm looking for tools to help simplify Core terms that involve casts. In
>> particular, I want to beta-reduce when the function is wrapped with a cast.
>> Do the GHC sources have such utility functions?
>>
>> Here is an example of a lambda expression with a cast. In context, it's
>> applied to two type arguments and two dictionary arguments and returns a
>> function of one more argument. (The function `(-->)` is defined as `(f -->
>> h) g = h . g . f`.)
>>
>> > ((\ (@ a8) (@ b)
>> >     ($dEncodable  :: Encodable a8)
>> >     ($dEncodable1 :: Encodable b) ->
>> >     case $dEncodable of _
>> >       D:Encodable _ tpl_B3 ->
>> >         case $dEncodable1 of _
>> >           D:Encodable tpl_B2 _ ->
>> >             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3
>> eta))
>> >     )
>> >  `cast` (forall a8 b.
>> >          <Encodable a8>_R
>> >          -> <Encodable b>_R
>> >          -> <a8 -> b>_R
>> >          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>> >          :: (forall a8 b. (Encodable a8, Encodable b) =>
>> >              (a8 -> b) -> Encode a8 -> Encode b)
>> >               ~#
>> >             (forall a8 b. (Encodable a8, Encodable b) =>
>> >              (a8 -> b) -> Encode (a8 -> b))))
>>
>> I can imagine pushing the `cast` down through the type lambdas while
>> stripping off `forall` coercions, then pushing the remaining `cast` through
>> the dictionary arguments, while stripping off the outer `<Encodable t>_R
>> ->` coercion wrappers, and then pushing the cast into the `case`
>> alternatives and the lambda body, leaving something like
>>
>> >  (\ (@ a8) (@ b)
>> >     ($dEncodable  :: Encodable a8)
>> >     ($dEncodable1 :: Encodable b) ->
>> >      case $dEncodable of _
>> >        D:Encodable _ tpl_B3 ->
>> >          case $dEncodable1 of _
>> >            D:Encodable tpl_B2 _ ->
>> >              \ (g :: a8 -> b) ->
>> >                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
>> >                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>> >                        :: (Encode a8 -> Encode b)
>> >                             ~#
>> >                           (Encode (a8 -> b))))
>>
>> Now, given type, dictionary, and function arguments, I think we could
>> beta-reduce.
>>
>> Before I try implementing these transformations, does something like them
>> already exist in GHC?
>>
>> Thanks, -- Conal
>>
>
>
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From simonpj at microsoft.com  Thu May  8 07:54:09 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Thu, 8 May 2014 07:54:09 +0000
Subject: Simplifying casts and beta-reduction
In-Reply-To: <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>
 <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C84EAF1@DB3PRD3001MB020.064d.mgd.msft.net>

Yes, that?s right: simplCast is the guy.  I can?t explain why it?s not working for you, though

Simon

From: conal.elliott at gmail.com [mailto:conal.elliott at gmail.com] On Behalf Of Conal Elliott
Sent: 08 May 2014 04:19
To: Simon Peyton Jones
Cc: ghc-devs at haskell.org
Subject: Re: Simplifying casts and beta-reduction

I'm still sorting through how to optimize these almost-beta-redexes in the form `((\ x -> u) |> co) v`, shifting coercions to enable beta-reduction (as described in section 3.1 of "Evidence normalization"). Is it done by `simplCast` (with help from `simplCoercion`), as called indirectly from `simplifyExpr` in `SimplCore`? I think I'm now calling `simplifyExpr` from HERMIT but I'm not getting the cast-shifting I'm looking for.
-- Conal

On Wed, May 7, 2014 at 1:02 PM, Conal Elliott <conal at conal.net<mailto:conal at conal.net>> wrote:
Very useful, indeed! Exactly what I was looking for. Thanks, Simon. Now I've read the evidence normalization and the deferred types paper, and I have a much better understanding of what's going on.

-- Conal

On Wed, May 7, 2014 at 1:28 AM, Simon Peyton Jones <simonpj at microsoft.com<mailto:simonpj at microsoft.com>> wrote:
Absolutely. There?s a whole module that does this: OptCoercion.  If you want to see what programs look like without coercion optimisation, try ?fno-opt-coercion.

The rules are described in our paper Evidence normalization in System FC: http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/

I hope that?s useful.

Simon

From: ghc-devs [mailto:ghc-devs-bounces at haskell.org<mailto:ghc-devs-bounces at haskell.org>] On Behalf Of Conal Elliott
Sent: 07 May 2014 04:50
To: ghc-devs at haskell.org<mailto:ghc-devs at haskell.org>
Subject: Simplifying casts and beta-reduction

I'm looking for tools to help simplify Core terms that involve casts. In particular, I want to beta-reduce when the function is wrapped with a cast. Do the GHC sources have such utility functions?

Here is an example of a lambda expression with a cast. In context, it's applied to two type arguments and two dictionary arguments and returns a function of one more argument. (The function `(-->)` is defined as `(f --> h) g = h . g . f`.)

> ((\ (@ a8) (@ b)
>     ($dEncodable  :: Encodable a8)
>     ($dEncodable1 :: Encodable b) ->
>     case $dEncodable of _
>       D:Encodable _ tpl_B3 ->
>         case $dEncodable1 of _
>           D:Encodable tpl_B2 _ ->
>             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta))
>     )
>  `cast` (forall a8 b.
>          <Encodable a8>_R
>          -> <Encodable b>_R
>          -> <a8 -> b>_R
>          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>          :: (forall a8 b. (Encodable a8, Encodable b) =>
>              (a8 -> b) -> Encode a8 -> Encode b)
>               ~#
>             (forall a8 b. (Encodable a8, Encodable b) =>
>              (a8 -> b) -> Encode (a8 -> b))))

I can imagine pushing the `cast` down through the type lambdas while stripping off `forall` coercions, then pushing the remaining `cast` through the dictionary arguments, while stripping off the outer `<Encodable t>_R ->` coercion wrappers, and then pushing the cast into the `case` alternatives and the lambda body, leaving something like

>  (\ (@ a8) (@ b)
>     ($dEncodable  :: Encodable a8)
>     ($dEncodable1 :: Encodable b) ->
>      case $dEncodable of _
>        D:Encodable _ tpl_B3 ->
>          case $dEncodable1 of _
>            D:Encodable tpl_B2 _ ->
>              \ (g :: a8 -> b) ->
>                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
>                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>                        :: (Encode a8 -> Encode b)
>                             ~#
>                           (Encode (a8 -> b))))

Now, given type, dictionary, and function arguments, I think we could beta-reduce.

Before I try implementing these transformations, does something like them already exist in GHC?
Thanks, -- Conal


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From carette at mcmaster.ca  Thu May  8 12:01:25 2014
From: carette at mcmaster.ca (Jacques Carette)
Date: Thu, 08 May 2014 08:01:25 -0400
Subject: Simplifying casts and beta-reduction
In-Reply-To: <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>
 <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>
Message-ID: <536B7215.9080607@mcmaster.ca>

Sorry to jump in mid-conversation, but since I read about people doing 
exactly this a few days ago, I thought this might be useful.  See the paper
Michael D. Adams 
<http://www.informatik.uni-trier.de/%7Eley/pers/hd/a/Adams:Michael_D=.html>, 
Andrew Farmer 
<http://www.informatik.uni-trier.de/%7Eley/pers/hd/f/Farmer:Andrew.html>, Jos? 
Pedro Magalh?es: Optimizing SYB is easy! PEPM 2014 
<http://www.informatik.uni-trier.de/%7Eley/db/conf/pepm/pepm2014.html#AdamsFM14>: 
71-82
http://www.ittc.ku.edu/csdl/fpg/files/Adams-13-OSIE.pdf

where they use Hermit
http://www.ittc.ku.edu/csdl/fpg/software/hermit.html
http://hackage.haskell.org/package/hermit
to do exactly this transformation [and a fair bit more].

Jacques

On 2014-05-07 11:18 PM, Conal Elliott wrote:
> I'm still sorting through how to optimize these almost-beta-redexes in 
> the form `((\ x -> u) |> co) v`, shifting coercions to enable 
> beta-reduction (as described in section 3.1 of "Evidence 
> normalization"). Is it done by `simplCast` (with help from 
> `simplCoercion`), as called indirectly from `simplifyExpr` in 
> `SimplCore`? I think I'm now calling `simplifyExpr` from HERMIT but 
> I'm not getting the cast-shifting I'm looking for.
>
> -- Conal
>
>
> On Wed, May 7, 2014 at 1:02 PM, Conal Elliott <conal at conal.net 
> <mailto:conal at conal.net>> wrote:
>
>     Very useful, indeed! Exactly what I was looking for. Thanks,
>     Simon. Now I've read the evidence normalization and the deferred
>     types paper, and I have a much better understanding of what's
>     going on.
>
>     -- Conal
>
>
>
>     On Wed, May 7, 2014 at 1:28 AM, Simon Peyton Jones
>     <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>
>         Absolutely. There's a whole module that does this:
>         OptCoercion.  If you want to see what programs look like
>         without coercion optimisation, try --fno-opt-coercion.
>
>         The rules are described in our paper /Evidence normalization
>         in System FC:
>         http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f//
>
>         //
>
>         I hope that's useful.
>
>         Simon
>
>         *From:*ghc-devs [mailto:ghc-devs-bounces at haskell.org
>         <mailto:ghc-devs-bounces at haskell.org>] *On Behalf Of *Conal
>         Elliott
>         *Sent:* 07 May 2014 04:50
>         *To:* ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         *Subject:* Simplifying casts and beta-reduction
>
>         I'm looking for tools to help simplify Core terms that involve
>         casts. In particular, I want to beta-reduce when the function
>         is wrapped with a cast. Do the GHC sources have such utility
>         functions?
>
>         Here is an example of a lambda expression with a cast. In
>         context, it's applied to two type arguments and two dictionary
>         arguments and returns a function of one more argument. (The
>         function `(-->)` is defined as `(f --> h) g = h . g . f`.)
>
>         > ((\ (@ a8) (@ b)
>         >     ($dEncodable  :: Encodable a8)
>         >     ($dEncodable1 :: Encodable b) ->
>         >     case $dEncodable of _
>         >       D:Encodable _ tpl_B3 ->
>         >         case $dEncodable1 of _
>         >           D:Encodable tpl_B2 _ ->
>         >             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g
>         (tpl_B3 eta))
>         >     )
>         >  `cast` (forall a8 b.
>         >          <Encodable a8>_R
>         >          -> <Encodable b>_R
>         >          -> <a8 -> b>_R
>         >          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>         >          :: (forall a8 b. (Encodable a8, Encodable b) =>
>         >              (a8 -> b) -> Encode a8 -> Encode b)
>         >               ~#
>         >             (forall a8 b. (Encodable a8, Encodable b) =>
>         >              (a8 -> b) -> Encode (a8 -> b))))
>
>         I can imagine pushing the `cast` down through the type lambdas
>         while stripping off `forall` coercions, then pushing the
>         remaining `cast` through the dictionary arguments, while
>         stripping off the outer `<Encodable t>_R ->` coercion
>         wrappers, and then pushing the cast into the `case`
>         alternatives and the lambda body, leaving something like
>
>         >  (\ (@ a8) (@ b)
>         >     ($dEncodable  :: Encodable a8)
>         >     ($dEncodable1 :: Encodable b) ->
>         >      case $dEncodable of _
>         >        D:Encodable _ tpl_B3 ->
>         >          case $dEncodable1 of _
>         >            D:Encodable tpl_B2 _ ->
>         >              \ (g :: a8 -> b) ->
>         >                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
>         >                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N
>         <b>_N))
>         >                        :: (Encode a8 -> Encode b)
>         > ~#
>         > (Encode (a8 -> b))))
>
>         Now, given type, dictionary, and function arguments, I think
>         we could beta-reduce.
>
>         Before I try implementing these transformations, does
>         something like them already exist in GHC?
>
>         Thanks, -- Conal
>
>
>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs

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From simonpj at microsoft.com  Thu May  8 12:03:22 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Thu, 8 May 2014 12:03:22 +0000
Subject: Cabal can't open a TCP connection
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>

Dear ghc-devs
Cabal can't open a TCP connection from my Linux box.  It used to work fine.  Here's what it says:

cabal -v3 update

Downloading the latest package list from hackage.haskell.org

Sending:

GET http://hackage.haskell.org/packages/archive/00-index.tar.gz HTTP/1.1

User-Agent: cabal-install/1.16.0.2

Host: hackage.haskell.org

proxy uri host: , port:

Creating new connection to

cabal: openTCPConnection: host lookup failure for ""



simonpj at cam-05-unx:~/code/HEAD$ cabal --version

cabal-install version 1.16.0.2

using version 1.16.0.3 of the Cabal library

simonpj at cam-05-unx:~/code/HEAD$
Can anyone help me work out what to do?  git works just fine, so the internet is connected all right.
Thanks
Simon

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From hvriedel at gmail.com  Thu May  8 12:40:56 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Thu, 08 May 2014 14:40:56 +0200
Subject: Cabal can't open a TCP connection
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>
 (Simon Peyton Jones's message of "Thu, 8 May 2014 12:03:22 +0000")
References: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <87siok30kn.fsf@gmail.com>

On 2014-05-08 at 14:03:22 +0200, Simon Peyton Jones wrote:
> Dear ghc-devs
> Cabal can't open a TCP connection from my Linux box.  It used to work fine.  Here's what it says:

[...]

> proxy uri host: , port:
> Creating new connection to
> cabal: openTCPConnection: host lookup failure for ""

my best guess: your proxy settings seem off

From simonpj at microsoft.com  Thu May  8 13:22:29 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Thu, 8 May 2014 13:22:29 +0000
Subject: Cabal can't open a TCP connection
In-Reply-To: <87siok30kn.fsf@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>
 <87siok30kn.fsf@gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C851099@DB3PRD3001MB020.064d.mgd.msft.net>

| my best guess: your proxy settings seem off

I think that's a good guess. On this machine we used to have to use a proxy (so $http_proxy had a URL in it), but now we don't (so $http_proxy is empty).  Maybe that's confusing Cabal.

On a machine that doesn't need to use a proxy server, what should $http_proxy be set to?

Simon

| -----Original Message-----
| From: Herbert Valerio Riedel [mailto:hvriedel at gmail.com]
| Sent: 08 May 2014 13:41
| To: Simon Peyton Jones
| Cc: ghc-devs at haskell.org; Simon Marlow
| Subject: Re: Cabal can't open a TCP connection
| 
| On 2014-05-08 at 14:03:22 +0200, Simon Peyton Jones wrote:
| > Dear ghc-devs
| > Cabal can't open a TCP connection from my Linux box.  It used to work
| fine.  Here's what it says:
| 
| [...]
| 
| > proxy uri host: , port:
| > Creating new connection to
| > cabal: openTCPConnection: host lookup failure for ""
| 
| my best guess: your proxy settings seem off

From ky3 at atamo.com  Thu May  8 13:48:17 2014
From: ky3 at atamo.com (Kim-Ee Yeoh)
Date: Thu, 8 May 2014 20:48:17 +0700
Subject: Cabal can't open a TCP connection
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C851099@DB3PRD3001MB020.064d.mgd.msft.net>
References: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>
 <87siok30kn.fsf@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C851099@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <CAPY+ZdRFEne8Sv9Pho4DPg5twkmidtEsXeejr-2dbK-BsEVKeQ@mail.gmail.com>

On Thu, May 8, 2014 at 8:22 PM, Simon Peyton Jones <simonpj at microsoft.com>wrote:

> On a machine that doesn't need to use a proxy server, what should
> $http_proxy be set to?


It's a Maybe (Maybe String) problem. Blame Cabal for not ignoring an empty
http_proxy. The *nix programs I've tried treat empty as unset.

The solution is: unset HTTP_PROXY.

-- Kim-Ee
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From metaniklas at gmail.com  Thu May  8 14:25:15 2014
From: metaniklas at gmail.com (Niklas Larsson)
Date: Thu, 8 May 2014 16:25:15 +0200
Subject: SV: Cabal can't open a TCP connection
Message-ID: <536b93ee.a50b700a.7fb0.3114@mx.google.com>

Looks like your proxy configuration is wrong. Git has its  own proxy settings in .gitconfig. Look at the http_proxy environment variable.

If you're not actually behind a proxy the problem could be the existence of http_proxy or HTTP_PROXY.

----- Ursprungligt meddelande -----
Fr?n: "Simon Peyton Jones" <simonpj at microsoft.com>
Skickat: ?2014-?05-?08 14:04
Till: "ghc-devs at haskell.org" <ghc-devs at haskell.org>
Kopia: "Simon Marlow" <marlowsd at gmail.com>
?mne: Cabal can't open a TCP connection

Dear ghc-devs
Cabal can?t open a TCP connection from my Linux box.  It used to work fine.  Here?s what it says:
cabal -v3 update
Downloading the latest package list from hackage.haskell.org
Sending:
GET http://hackage.haskell.org/packages/archive/00-index.tar.gz HTTP/1.1
User-Agent: cabal-install/1.16.0.2
Host: hackage.haskell.org
proxy uri host: , port:
Creating new connection to
cabal: openTCPConnection: host lookup failure for ""
 
simonpj at cam-05-unx:~/code/HEAD$ cabal --version
cabal-install version 1.16.0.2
using version 1.16.0.3 of the Cabal library 
simonpj at cam-05-unx:~/code/HEAD$
Can anyone help me work out what to do?  git works just fine, so the internet is connected all right.
Thanks
Simon
 
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From simonpj at microsoft.com  Thu May  8 16:20:16 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Thu, 8 May 2014 16:20:16 +0000
Subject: Cabal can't open a TCP connection
In-Reply-To: <CAPY+ZdRFEne8Sv9Pho4DPg5twkmidtEsXeejr-2dbK-BsEVKeQ@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>
 <87siok30kn.fsf@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C851099@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAPY+ZdRFEne8Sv9Pho4DPg5twkmidtEsXeejr-2dbK-BsEVKeQ@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C8512DB@DB3PRD3001MB020.064d.mgd.msft.net>

Spot on, Kim-Ee.  Thanks.  unsetting http_proxy fixed it.

I?m fwding to cabal-devel: it would be great that if ?http_proxy? was set to ??, then it behaved just as if it was un-set.  The current behaviour is very confusing (to me anyway).

Simon

From: Kim-Ee Yeoh [mailto:ky3 at atamo.com]
Sent: 08 May 2014 14:48
To: Simon Peyton Jones
Cc: Herbert Valerio Riedel; Simon Marlow; ghc-devs at haskell.org
Subject: Re: Cabal can't open a TCP connection


On Thu, May 8, 2014 at 8:22 PM, Simon Peyton Jones <simonpj at microsoft.com<mailto:simonpj at microsoft.com>> wrote:
On a machine that doesn't need to use a proxy server, what should $http_proxy be set to?

It's a Maybe (Maybe String) problem. Blame Cabal for not ignoring an empty http_proxy. The *nix programs I've tried treat empty as unset.
The solution is: unset HTTP_PROXY.

-- Kim-Ee

________________________________
Fr?n: Simon Peyton Jones<mailto:simonpj at microsoft.com>
Skickat: ?2014-?05-?08 14:04
Till: ghc-devs at haskell.org<mailto:ghc-devs at haskell.org>
Kopia: Simon Marlow<mailto:marlowsd at gmail.com>
?mne: Cabal can't open a TCP connection
Dear ghc-devs
Cabal can?t open a TCP connection from my Linux box.  It used to work fine.  Here?s what it says:

cabal -v3 update

Downloading the latest package list from hackage.haskell.org

Sending:

GET http://hackage.haskell.org/packages/archive/00-index.tar.gz HTTP/1.1

User-Agent: cabal-install/1.16.0.2

Host: hackage.haskell.org

proxy uri host: , port:

Creating new connection to

cabal: openTCPConnection: host lookup failure for ""



simonpj at cam-05-unx:~/code/HEAD$ cabal --version

cabal-install version 1.16.0.2

using version 1.16.0.3 of the Cabal library

simonpj at cam-05-unx:~/code/HEAD$
Can anyone help me work out what to do?  git works just fine, so the internet is connected all right.
Thanks
Simon

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From ganesh at earth.li  Thu May  8 17:25:30 2014
From: ganesh at earth.li (Ganesh Sittampalam)
Date: Thu, 08 May 2014 18:25:30 +0100
Subject: Cabal can't open a TCP connection
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C8512DB@DB3PRD3001MB020.064d.mgd.msft.net>
References: <618BE556AADD624C9C918AA5D5911BEF0C850EB4@DB3PRD3001MB020.064d.mgd.msft.net>
 <87siok30kn.fsf@gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C851099@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAPY+ZdRFEne8Sv9Pho4DPg5twkmidtEsXeejr-2dbK-BsEVKeQ@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C8512DB@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <536BBE0A.4030800@earth.li>

I think this fix would belong in the HTTP library.

I've opened https://github.com/haskell/HTTP/issues/66 - the only
argument against making the change I can see is that it might not be
consistent with other tools, but that doesn't seem to be the case.

If noone has an opposing view I'll probably implement it soon.


On 08/05/2014 17:20, Simon Peyton Jones wrote:
> Spot on, Kim-Ee.  Thanks.  unsetting http_proxy fixed it.
> 
>  
> 
> I?m fwding to cabal-devel: it would be great that if ?http_proxy? was
> set to ??, then it behaved just as if it was un-set.  The current
> behaviour is very confusing (to me anyway).
> 
>  
> 
> Simon
> 
>  
> 
> *From:*Kim-Ee Yeoh [mailto:ky3 at atamo.com]
> *Sent:* 08 May 2014 14:48
> *To:* Simon Peyton Jones
> *Cc:* Herbert Valerio Riedel; Simon Marlow; ghc-devs at haskell.org
> *Subject:* Re: Cabal can't open a TCP connection
> 
>  
> 
>  
> 
> On Thu, May 8, 2014 at 8:22 PM, Simon Peyton Jones
> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
> 
>     On a machine that doesn't need to use a proxy server, what should
>     $http_proxy be set to?
> 
>  
> 
> It's a Maybe (Maybe String) problem. Blame Cabal for not ignoring an
> empty http_proxy. The *nix programs I've tried treat empty as unset.
> 
> The solution is: unset HTTP_PROXY.
> 
> 
> -- Kim-Ee
> 
>  
> 
> ------------------------------------------------------------------------
> 
> *Fr?n: *Simon Peyton Jones <mailto:simonpj at microsoft.com>
> *Skickat: *?2014-?05-?08 14:04
> *Till: *ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
> *Kopia: *Simon Marlow <mailto:marlowsd at gmail.com>
> *?mne: *Cabal can't open a TCP connection
> 
> Dear ghc-devs
> 
> Cabal can?t open a TCP connection from my Linux box.  It used to work
> fine.  Here?s what it says:
> 
> cabal -v3 update
> 
> Downloading the latest package list from hackage.haskell.org
> 
> Sending:
> 
> GET http://hackage.haskell.org/packages/archive/00-index.tar.gz HTTP/1.1
> 
> User-Agent: cabal-install/1.16.0.2
> 
> Host: hackage.haskell.org
> 
> proxy uri host: , port:
> 
> Creating new connection to
> 
> cabal: openTCPConnection: host lookup failure for ""
> 
>  
> 
> simonpj at cam-05-unx:~/code/HEAD$ cabal --version
> 
> cabal-install version 1.16.0.2
> 
> using version 1.16.0.3 of the Cabal library
> 
> simonpj at cam-05-unx:~/code/HEAD$
> 
> Can anyone help me work out what to do?  git works just fine, so the
> internet is connected all right.
> 
> Thanks
> 
> Simon
> 
>  
> 
> 
> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 


From conal at conal.net  Thu May  8 18:04:44 2014
From: conal at conal.net (Conal Elliott)
Date: Thu, 8 May 2014 11:04:44 -0700
Subject: Simplifying casts and beta-reduction
In-Reply-To: <536B7215.9080607@mcmaster.ca>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>
 <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>
 <536B7215.9080607@mcmaster.ca>
Message-ID: <CAD6SzRJN0G6bmn5UcZz3Ah7XwXvdqW-Gm0kTzsVAtfw_B8npUg@mail.gmail.com>

Thanks, Jacques! That paper looks tremendously relevant to what I'm doing.
-- Conal


On Thu, May 8, 2014 at 5:01 AM, Jacques Carette <carette at mcmaster.ca> wrote:

>  Sorry to jump in mid-conversation, but since I read about people doing
> exactly this a few days ago, I thought this might be useful.  See the paper
> Michael D. Adams<http://www.informatik.uni-trier.de/%7Eley/pers/hd/a/Adams:Michael_D=.html>,
> Andrew Farmer<http://www.informatik.uni-trier.de/%7Eley/pers/hd/f/Farmer:Andrew.html>,
> Jos? Pedro Magalh?es: Optimizing SYB is easy! PEPM 2014<http://www.informatik.uni-trier.de/%7Eley/db/conf/pepm/pepm2014.html#AdamsFM14>:
> 71-82
> http://www.ittc.ku.edu/csdl/fpg/files/Adams-13-OSIE.pdf
>
> where they use Hermit
> http://www.ittc.ku.edu/csdl/fpg/software/hermit.html
> http://hackage.haskell.org/package/hermit
> to do exactly this transformation [and a fair bit more].
>
> Jacques
>
>
> On 2014-05-07 11:18 PM, Conal Elliott wrote:
>
>  I'm still sorting through how to optimize these almost-beta-redexes in
> the form `((\ x -> u) |> co) v`, shifting coercions to enable
> beta-reduction (as described in section 3.1 of "Evidence normalization").
> Is it done by `simplCast` (with help from `simplCoercion`), as called
> indirectly from `simplifyExpr` in `SimplCore`? I think I'm now calling
> `simplifyExpr` from HERMIT but I'm not getting the cast-shifting I'm
> looking for.
>
>  -- Conal
>
>
> On Wed, May 7, 2014 at 1:02 PM, Conal Elliott <conal at conal.net> wrote:
>
>> Very useful, indeed! Exactly what I was looking for. Thanks, Simon. Now
>> I've read the evidence normalization and the deferred types paper, and I
>> have a much better understanding of what's going on.
>>
>> -- Conal
>>
>>
>>
>> On Wed, May 7, 2014 at 1:28 AM, Simon Peyton Jones <simonpj at microsoft.com
>> > wrote:
>>
>>>  Absolutely. There?s a whole module that does this: OptCoercion.  If
>>> you want to see what programs look like without coercion optimisation, try
>>> ?fno-opt-coercion.
>>>
>>>
>>>
>>> The rules are described in our paper *Evidence normalization in System
>>> FC: http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/
>>> <http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/>*
>>>
>>>
>>>
>>> I hope that?s useful.
>>>
>>>
>>>
>>> Simon
>>>
>>>
>>>
>>> *From:* ghc-devs [mailto:ghc-devs-bounces at haskell.org] *On Behalf Of *Conal
>>> Elliott
>>> *Sent:* 07 May 2014 04:50
>>> *To:* ghc-devs at haskell.org
>>> *Subject:* Simplifying casts and beta-reduction
>>>
>>>
>>>
>>> I'm looking for tools to help simplify Core terms that involve casts. In
>>> particular, I want to beta-reduce when the function is wrapped with a cast.
>>> Do the GHC sources have such utility functions?
>>>
>>> Here is an example of a lambda expression with a cast. In context, it's
>>> applied to two type arguments and two dictionary arguments and returns a
>>> function of one more argument. (The function `(-->)` is defined as `(f -->
>>> h) g = h . g . f`.)
>>>
>>> > ((\ (@ a8) (@ b)
>>> >     ($dEncodable  :: Encodable a8)
>>> >     ($dEncodable1 :: Encodable b) ->
>>> >     case $dEncodable of _
>>> >       D:Encodable _ tpl_B3 ->
>>> >         case $dEncodable1 of _
>>> >           D:Encodable tpl_B2 _ ->
>>> >             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3
>>> eta))
>>> >     )
>>> >  `cast` (forall a8 b.
>>> >          <Encodable a8>_R
>>> >          -> <Encodable b>_R
>>> >          -> <a8 -> b>_R
>>> >          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>>> >          :: (forall a8 b. (Encodable a8, Encodable b) =>
>>> >              (a8 -> b) -> Encode a8 -> Encode b)
>>> >               ~#
>>> >             (forall a8 b. (Encodable a8, Encodable b) =>
>>> >              (a8 -> b) -> Encode (a8 -> b))))
>>>
>>> I can imagine pushing the `cast` down through the type lambdas while
>>> stripping off `forall` coercions, then pushing the remaining `cast` through
>>> the dictionary arguments, while stripping off the outer `<Encodable t>_R
>>> ->` coercion wrappers, and then pushing the cast into the `case`
>>> alternatives and the lambda body, leaving something like
>>>
>>> >  (\ (@ a8) (@ b)
>>> >     ($dEncodable  :: Encodable a8)
>>> >     ($dEncodable1 :: Encodable b) ->
>>> >      case $dEncodable of _
>>> >        D:Encodable _ tpl_B3 ->
>>> >          case $dEncodable1 of _
>>> >            D:Encodable tpl_B2 _ ->
>>> >              \ (g :: a8 -> b) ->
>>> >                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
>>> >                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
>>> >                        :: (Encode a8 -> Encode b)
>>> >                             ~#
>>> >                           (Encode (a8 -> b))))
>>>
>>> Now, given type, dictionary, and function arguments, I think we could
>>> beta-reduce.
>>>
>>> Before I try implementing these transformations, does something like
>>> them already exist in GHC?
>>>
>>> Thanks, -- Conal
>>>
>>
>>
>
>
> _______________________________________________
> ghc-devs mailing listghc-devs at haskell.orghttp://www.haskell.org/mailman/listinfo/ghc-devs
>
>
>
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From conal at conal.net  Thu May  8 19:32:32 2014
From: conal at conal.net (Conal Elliott)
Date: Thu, 8 May 2014 12:32:32 -0700
Subject: Simplifying casts and beta-reduction
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C84EAF1@DB3PRD3001MB020.064d.mgd.msft.net>
References: <CAD6SzR+JM4g3qOmD9otCCKt5UV5d=mLC-uOn2wEa+fXCg0QPMA@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C0DDD7C@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAD6SzR+tOzUHRrUsKCwvwfPHpOg04CWvtmJvLNcuJcsAETC-Kg@mail.gmail.com>
 <CAD6SzRL_hFXbe=XqdT9SU5FfDQVGfBHwLp53PLiDf-M8y+T0HQ@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C84EAF1@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <CAD6SzR+2m4d3otkJRV_W8uPGx_mztNpfGXBqeBUqNsq+rSuO3w@mail.gmail.com>

Thanks, Simon. I'll keep poking around.


On Thu, May 8, 2014 at 12:54 AM, Simon Peyton Jones
<simonpj at microsoft.com>wrote:

>  Yes, that?s right: simplCast is the guy.  I can?t explain why it?s not
> working for you, though
>
>
>
> Simon
>
>
>
> *From:* conal.elliott at gmail.com [mailto:conal.elliott at gmail.com] *On
> Behalf Of *Conal Elliott
> *Sent:* 08 May 2014 04:19
> *To:* Simon Peyton Jones
> *Cc:* ghc-devs at haskell.org
> *Subject:* Re: Simplifying casts and beta-reduction
>
>
>
> I'm still sorting through how to optimize these almost-beta-redexes in the
> form `((\ x -> u) |> co) v`, shifting coercions to enable beta-reduction
> (as described in section 3.1 of "Evidence normalization"). Is it done by
> `simplCast` (with help from `simplCoercion`), as called indirectly from
> `simplifyExpr` in `SimplCore`? I think I'm now calling `simplifyExpr` from
> HERMIT but I'm not getting the cast-shifting I'm looking for.
>
> -- Conal
>
>
>
> On Wed, May 7, 2014 at 1:02 PM, Conal Elliott <conal at conal.net> wrote:
>
>  Very useful, indeed! Exactly what I was looking for. Thanks, Simon. Now
> I've read the evidence normalization and the deferred types paper, and I
> have a much better understanding of what's going on.
>
> -- Conal
>
>
>
> On Wed, May 7, 2014 at 1:28 AM, Simon Peyton Jones <simonpj at microsoft.com>
> wrote:
>
>  Absolutely. There?s a whole module that does this: OptCoercion.  If you
> want to see what programs look like without coercion optimisation, try
> ?fno-opt-coercion.
>
>
>
> The rules are described in our paper *Evidence normalization in System
> FC: http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/
> <http://research.microsoft.com/en-us/um/people/simonpj/papers/ext-f/>*
>
>
>
> I hope that?s useful.
>
>
>
> Simon
>
>
>
> *From:* ghc-devs [mailto:ghc-devs-bounces at haskell.org] *On Behalf Of *Conal
> Elliott
> *Sent:* 07 May 2014 04:50
> *To:* ghc-devs at haskell.org
> *Subject:* Simplifying casts and beta-reduction
>
>
>
> I'm looking for tools to help simplify Core terms that involve casts. In
> particular, I want to beta-reduce when the function is wrapped with a cast.
> Do the GHC sources have such utility functions?
>
> Here is an example of a lambda expression with a cast. In context, it's
> applied to two type arguments and two dictionary arguments and returns a
> function of one more argument. (The function `(-->)` is defined as `(f -->
> h) g = h . g . f`.)
>
> > ((\ (@ a8) (@ b)
> >     ($dEncodable  :: Encodable a8)
> >     ($dEncodable1 :: Encodable b) ->
> >     case $dEncodable of _
> >       D:Encodable _ tpl_B3 ->
> >         case $dEncodable1 of _
> >           D:Encodable tpl_B2 _ ->
> >             \ (g :: a8 -> b) (eta :: Encode a8) -> tpl_B2 (g (tpl_B3
> eta))
> >     )
> >  `cast` (forall a8 b.
> >          <Encodable a8>_R
> >          -> <Encodable b>_R
> >          -> <a8 -> b>_R
> >          -> Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
> >          :: (forall a8 b. (Encodable a8, Encodable b) =>
> >              (a8 -> b) -> Encode a8 -> Encode b)
> >               ~#
> >             (forall a8 b. (Encodable a8, Encodable b) =>
> >              (a8 -> b) -> Encode (a8 -> b))))
>
> I can imagine pushing the `cast` down through the type lambdas while
> stripping off `forall` coercions, then pushing the remaining `cast` through
> the dictionary arguments, while stripping off the outer `<Encodable t>_R
> ->` coercion wrappers, and then pushing the cast into the `case`
> alternatives and the lambda body, leaving something like
>
> >  (\ (@ a8) (@ b)
> >     ($dEncodable  :: Encodable a8)
> >     ($dEncodable1 :: Encodable b) ->
> >      case $dEncodable of _
> >        D:Encodable _ tpl_B3 ->
> >          case $dEncodable1 of _
> >            D:Encodable tpl_B2 _ ->
> >              \ (g :: a8 -> b) ->
> >                (\ (eta :: Encode a8) -> tpl_B2 (g (tpl_B3 eta)))
> >                `cast` (Sub (Sym (TFCo:R:Encode(->)[0] <a8>_N <b>_N))
> >                        :: (Encode a8 -> Encode b)
> >                             ~#
> >                           (Encode (a8 -> b))))
>
> Now, given type, dictionary, and function arguments, I think we could
> beta-reduce.
>
> Before I try implementing these transformations, does something like them
> already exist in GHC?
>
> Thanks, -- Conal
>
>
>
>
>
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From groldugin at cse.unsw.edu.au  Fri May  9 04:08:30 2014
From: groldugin at cse.unsw.edu.au (George Roldugin)
Date: Fri, 9 May 2014 14:08:30 +1000
Subject: GHC not parsing TH pretty printed code
Message-ID: <90857027-3771-4FD5-AFF9-3468B7A6DE8C@cse.unsw.edu.au>

Hi all,

I've hit a problem with GHC 7.8 where the code pretty printed by Template Haskell fails to parse.

The problem is with the placement of explicit semicolons in place of indentation.

The following code pretty printed by TH won't parse:

bar = do {let x = 5;
          return x}


GHC expects the following placement of semicolons:

bar = do {let x = 5
         ; return x}


I reported this bug and included sample TH code to reproduce the problem here:
https://ghc.haskell.org/trac/ghc/ticket/9022

I rely on compiling code constructed with TH for my thesis project.

Is there a work around I could use besides going back to GHC 7.6?

Cheers,
George 

From eir at cis.upenn.edu  Fri May  9 04:24:54 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Fri, 9 May 2014 00:24:54 -0400
Subject: GHC not parsing TH pretty printed code
In-Reply-To: <90857027-3771-4FD5-AFF9-3468B7A6DE8C@cse.unsw.edu.au>
References: <90857027-3771-4FD5-AFF9-3468B7A6DE8C@cse.unsw.edu.au>
Message-ID: <E7522075-3E2E-4352-B465-F0CA4106B570@cis.upenn.edu>

Well, the problem isn't quite that the semicolon is expected before the second line -- it's that the semicolon is interpreted as separating let-definitions, not do-statements.

For example, the following works:

bar = do {let {x = 5};
          return x}

Looking quickly through the TH's pretty-printer code, there seem to be several places where problems like this might arise, due to lack of braces or too many of them.

What to do? If you're blocked by this issue, just edit the pretty-printer code. The code is actually quite straightforward. Get the sources (https://ghc.haskell.org/trac/ghc/wiki/Building/GettingTheSources),
prep your machine (https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation), and build. Given
that TH has changed since the 7.8 release, I recommend saying `sync-all checkout ghc-7.8` to
get the 7.8 branch before building.

After building, do some sanity checks to make sure your hand-built GHC is working.

Then, just edit libraries/template-haskell/Language/Haskell/TH/Ppr.hs until things work. In particular, I bet adding a call to `braces` on line 150 will go a long way here.

Even if we fixed the bug you reported, that bugfix would be in HEAD, where TH is different than in 7.8. It's possible it would be merged for 7.8.3, but my guess is that you don't want to wait that long.

I hope this helps!
Richard

On May 9, 2014, at 12:08 AM, George Roldugin <groldugin at cse.unsw.edu.au> wrote:

> Hi all,
> 
> I've hit a problem with GHC 7.8 where the code pretty printed by Template Haskell fails to parse.
> 
> The problem is with the placement of explicit semicolons in place of indentation.
> 
> The following code pretty printed by TH won't parse:
> 
> bar = do {let x = 5;
>          return x}
> 
> 
> GHC expects the following placement of semicolons:
> 
> bar = do {let x = 5
>         ; return x}
> 
> 
> I reported this bug and included sample TH code to reproduce the problem here:
> https://ghc.haskell.org/trac/ghc/ticket/9022
> 
> I rely on compiling code constructed with TH for my thesis project.
> 
> Is there a work around I could use besides going back to GHC 7.6?
> 
> Cheers,
> George 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From simonpj at microsoft.com  Fri May  9 07:29:15 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Fri, 9 May 2014 07:29:15 +0000
Subject: GHC not parsing TH pretty printed code
In-Reply-To: <E7522075-3E2E-4352-B465-F0CA4106B570@cis.upenn.edu>
References: <90857027-3771-4FD5-AFF9-3468B7A6DE8C@cse.unsw.edu.au>
 <E7522075-3E2E-4352-B465-F0CA4106B570@cis.upenn.edu>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C8516D1@DB3PRD3001MB020.064d.mgd.msft.net>

Richard is spot on.

Meanwhile, do open a ticket on this.  Maybe someone else will jump in to help.

Do give a step-by-step way to reproduce the problem.

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of
| Richard Eisenberg
| Sent: 09 May 2014 05:25
| To: George Roldugin
| Cc: ghc-devs at haskell.org
| Subject: Re: GHC not parsing TH pretty printed code
| 
| Well, the problem isn't quite that the semicolon is expected before the
| second line -- it's that the semicolon is interpreted as separating let-
| definitions, not do-statements.
| 
| For example, the following works:
| 
| bar = do {let {x = 5};
|           return x}
| 
| Looking quickly through the TH's pretty-printer code, there seem to be
| several places where problems like this might arise, due to lack of
| braces or too many of them.
| 
| What to do? If you're blocked by this issue, just edit the pretty-
| printer code. The code is actually quite straightforward. Get the
| sources
| (https://ghc.haskell.org/trac/ghc/wiki/Building/GettingTheSources),
| prep your machine
| (https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation), and build.
| Given that TH has changed since the 7.8 release, I recommend saying
| `sync-all checkout ghc-7.8` to get the 7.8 branch before building.
| 
| After building, do some sanity checks to make sure your hand-built GHC
| is working.
| 
| Then, just edit libraries/template-haskell/Language/Haskell/TH/Ppr.hs
| until things work. In particular, I bet adding a call to `braces` on
| line 150 will go a long way here.
| 
| Even if we fixed the bug you reported, that bugfix would be in HEAD,
| where TH is different than in 7.8. It's possible it would be merged for
| 7.8.3, but my guess is that you don't want to wait that long.
| 
| I hope this helps!
| Richard
| 
| On May 9, 2014, at 12:08 AM, George Roldugin <groldugin at cse.unsw.edu.au>
| wrote:
| 
| > Hi all,
| >
| > I've hit a problem with GHC 7.8 where the code pretty printed by
| Template Haskell fails to parse.
| >
| > The problem is with the placement of explicit semicolons in place of
| indentation.
| >
| > The following code pretty printed by TH won't parse:
| >
| > bar = do {let x = 5;
| >          return x}
| >
| >
| > GHC expects the following placement of semicolons:
| >
| > bar = do {let x = 5
| >         ; return x}
| >
| >
| > I reported this bug and included sample TH code to reproduce the
| problem here:
| > https://ghc.haskell.org/trac/ghc/ticket/9022
| >
| > I rely on compiling code constructed with TH for my thesis project.
| >
| > Is there a work around I could use besides going back to GHC 7.6?
| >
| > Cheers,
| > George
| > _______________________________________________
| > ghc-devs mailing list
| > ghc-devs at haskell.org
| > http://www.haskell.org/mailman/listinfo/ghc-devs
| 
| _______________________________________________
| ghc-devs mailing list
| ghc-devs at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-devs

From lortabac at gmx.com  Fri May  9 09:35:43 2014
From: lortabac at gmx.com (Lorenzo Tabacchini)
Date: Fri, 09 May 2014 11:35:43 +0200
Subject: Bugsquashing at ZuriHac
In-Reply-To: <1399467281.2258.33.camel@kirk>
References: <1399467281.2258.33.camel@kirk>
Message-ID: <536CA16F.10609@gmx.com>

I am a GHC-newbie happy to help.
Besides cloning, building the sources and reading the introductory pages 
on the GHC wiki, is there anything else I can do to prepare for the event?
Are there any easier parts to start reading the code?

Thank you

From christiaan.baaij at gmail.com  Fri May  9 14:29:09 2014
From: christiaan.baaij at gmail.com (Christiaan Baaij)
Date: Fri, 9 May 2014 16:29:09 +0200
Subject: Why is an irrefutable pattern desugared to a 'cast',
 while an incomplete pattern is not?
Message-ID: <B7D8B15B-BD75-4196-9FB2-AFF9BCF6125D@gmail.com>

Dear list,

When I ask for the desugaring of:
> module PatError where
> 
> paterror :: Maybe Int -> Int
> paterror (Just i) = i

I get the following:
> PatError.paterror =
>   \ (ds_dIS :: Data.Maybe.Maybe GHC.Types.Int) ->
>     break<1>()
>     case ds_dIS of _ [Occ=Dead] {
>       __DEFAULT ->
>         (\ _ [Occ=Dead, OS=OneShot] ->
>            Control.Exception.Base.patError
>              @ GHC.Types.Int "PatError.hs:4:1-21|function paterror"#)
>           GHC.Prim.void#;
>       Data.Maybe.Just i_aqG -> break<0>(i_aqG) i_aqG
>     }

Where 'Control.Exception.Base.patError' is applied to 'Int'.

However, when I compile the almost identical code with an irrefutable pattern:
> module PatError2 where
> 
> patError :: Maybe Int -> Int
> patError ~(Just i) = i

I get the following core:
> PatError2.paterror =
>   \ (ds_dIT :: Data.Maybe.Maybe GHC.Types.Int) ->
>     break<1>()
>     let {
>       i_aqG :: GHC.Types.Int
>       [LclId, Str=DmdType]
>       i_aqG =
>         case ds_dIT of _ [Occ=Dead] {
>           __DEFAULT ->
>             (\ _ [Occ=Dead, OS=OneShot] ->
>                (Control.Exception.Base.irrefutPatError
>                   @ () "PatError2.hs:4:1-22|(Data.Maybe.Just i)"#)
>                `cast` (UnivCo representational () GHC.Types.Int
>                        :: () ~# GHC.Types.Int))
>               GHC.Prim.void#;
>           Data.Maybe.Just i_aqG -> i_aqG
>         } } in
>     break<0>(i_aqG) i_aqG

Where 'Control.Exception.Base.patError' is first applied to '()' after which it is casted to 'GHC.Types.Int'.
Out of the [note] for the 'UnivCo' coercion:
> The UnivCo ("universal coercion") serves two rather separate functions:
>  - the implementation for unsafeCoerce#
>  - placeholder for phantom parameters in a TyConAppCo

It seems to be used in the 'unsafeCoerce#' role here.
My question is: why can't the irrefutable pattern be translated to 'Control.Exception.Base.irrefutPatError' applied to 'Int'?
Instead of using this 'cast'?
I find the cast-less version much more readable.

Greetings,

Christiaan


From marlowsd at gmail.com  Fri May  9 15:45:42 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 09 May 2014 16:45:42 +0100
Subject: GHC status report
In-Reply-To: <CADUbQ5h8nUL4VP3OocVf0xD+CoC5S22z0Dc9+wvnJGfMZP3YUA@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0A58F2FC@DB3PRD3001MB020.064d.mgd.msft.net>	<CAB-d4A6c82R8pMoPWj+qbudHikHT7__vLv=sUnEN52NLC7_V7g@mail.gmail.com>	<536128AF.7080209@gmail.com>	<CAB-d4A71Mui00nbkiAGCdmjSyZ-7WveEgrOt3yipD00PXiFJ0g@mail.gmail.com>	<CADUbQ5i65+jNLrKq39CJtu_DobwT7NZbbKVLMEdPc=VLeh0V5w@mail.gmail.com>	<5362BC24.9030101@gmail.com>	<CADUbQ5jAxtaKOz+AEPAY3Ke7B-tKehs0hqVGUYg0mStYsiukPw@mail.gmail.com>	<5363990D.5080200@gmail.com>	<CADUbQ5g_Eas=HcJJ68LB35cM_tbDJMis8P0LfFMbDPTR6Py5RA@mail.gmail.com>	<5363F5E5.6040004@gmail.com>	<CADUbQ5iwejadOJjrkN-p+FWV-VPRHDBXGtc7rrc5j-+PBGCmrg@mail.gmail.com>	<5367FB82.6050001@gmail.com>
 <CADUbQ5h8nUL4VP3OocVf0xD+CoC5S22z0Dc9+wvnJGfMZP3YUA@mail.gmail.com>
Message-ID: <536CF826.1020606@gmail.com>

On 07/05/2014 05:11, Dominick Samperi wrote:
> OK, so if I understand correctly, there is no point trying to
> narrow down my issue further as it is not supposed to work
> with DYNAMIC_GHC_PROGRAMS=NO (because this disables
> use of the system linker).

On the contrary, if the external C++ code that you depend on is in a 
shared library or DLL then DYNAMIC_GHC_PROGRAMS=NO should work fine.

> Furthermore, if the plan to disable
> some form of GHC dynamic linkage is carried out, this should
> not affect how external C/C++ libs are linked to (using the
> system linker).

Correct. (but there's no plan at the moment)

> From other comments in this thread it
> appears that there may be problems linking to C++ libs
> that require static initialization.

Only when both
  (a) the C++ code is in the same library as the Haskell code
  (b) DYNAMIC_GHC_PROGRAMS=NO

And even then, GHC 7.8 has support for running static initializers in 
the linker so it might work now.

Cheers,
Simon


>
> On Mon, May 5, 2014 at 4:58 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>> On 03/05/14 04:15, Dominick Samperi wrote:
>>>
>>> I'm trying to understand the dynamic linking situation with the help of
>>> https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-7.8, and according
>>> to this information I need to specify DYNAMIC_GHC_PROGRAMS=YES
>>> for ghci to use the system linker. I don't understand why you suggested
>>> I test with DYNAMIC_GHC_PROGRAMS=NO?
>>
>>
>> The question I'm trying to answer is "what stops working if we use
>> DYNAMIC_GHC_PROGRAMS=NO?".  So that's why I'm interested in what happens if
>> you set this option.
>>
>> Thanks for your help!
>>
>> Cheers,
>> Simon
>>
>>
>>
>>> Another interesting twist is that my experience under Windows
>>> is the opposite of the negative experience described on this
>>> page. What I mean by this is more versions of ghci seem to
>>> work under Windows (correctly linking to R.dll) than work
>>> under Linux!
>>>
>>>
>>> On Fri, May 2, 2014 at 3:45 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>
>>>> Can you give me a quick summary of how to reproduce the problem? (not
>>>> including the GHC build steps)
>>>>
>>>> Cheers,
>>>> Simon
>>>>
>>>>
>>>> On 02/05/14 18:18, Dominick Samperi wrote:
>>>>>
>>>>>
>>>>> I downloaded HEAD and placed DYNAMIC_GHC_PROGRAMS=NO in the "quick"
>>>>> section of mk/build.mk (with BuildFlavour = quick), and set
>>>>> DYNAMIC_GHC_PROGRAMS=NO
>>>>> in my environment before running configure (just to be sure!). Near
>>>>> the end of the build
>>>>> I saw some messages like "Warning: vectorization failure," but the
>>>>> build completed.
>>>>>
>>>>> The status at the end of configure doesn't say that dynamic linking
>>>>> via RTS has been
>>>>> turned off, and I don't know how to check that this is so.
>>>>> Nevertheless, I checked
>>>>> the linking issue and it is NOT fixed with this build, so
>>>>> DYNAMIC_GHC_PROGRAMS=YES is required to prevent the problems
>>>>> reported by me and others.
>>>>>
>>>>>
>>>>> On Fri, May 2, 2014 at 9:09 AM, Simon Marlow <marlowsd at gmail.com> wrote:
>>>>>>
>>>>>>
>>>>>> On 02/05/2014 01:09, Dominick Samperi wrote:
>>>>>>
>>>>>>> If I understand your last comment correctly linking to libR should
>>>>>>> continue to work, even if you revert to static linking of Haskell
>>>>>>> compiled
>>>>>>> code via RTS linker. Since you say this is the way things have always
>>>>>>> been, perhaps the real explanation for why 7.8 fixed the issue is that
>>>>>>> some bug was fixed along the way...
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Indeed.  To know for sure we would have to test 7.8 with
>>>>>> DYNAMIC_GHC_PROGRAMS=NO with your setup - is there a way to do that?
>>>>>>
>>>>>> Cheers,
>>>>>> Simon
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Note that R is a C library, so the C++ issues that Carter mentions are
>>>>>>> not a factor here.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Dominick
>>>>>>>
>>>>>>> On Thu, May 1, 2014 at 5:27 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 01/05/14 14:48, Dominick Samperi wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> The problem with some graphics libraries used via FFI (and other
>>>>>>>>> libraries
>>>>>>>>> that are not thread-safe), if I understand the situation correctly,
>>>>>>>>> is
>>>>>>>>> that ghci
>>>>>>>>> forks a thread when it shouldn't, causing some programs to
>>>>>>>>> miscalculate
>>>>>>>>> the available stack space (because they think there is only one
>>>>>>>>> thread).
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> The new dynamic linking support and the flag -fno-ghci-sandbox fixes
>>>>>>>>> this problem, and I would not vote for the removal of these
>>>>>>>>> features.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> So I understand how -fno-ghci-sandbox avoids problems with GUI
>>>>>>>> libraries
>>>>>>>> that use thread-local state.  But how is dynamic linking involved
>>>>>>>> here?
>>>>>>>> What improved in GHC 7.8 relative to 7.6 for you? And could you
>>>>>>>> clarify
>>>>>>>> "miscalculate the available stack space"? What needs to calculate
>>>>>>>> stack
>>>>>>>> space? Why? C stack space?
>>>>>>>>
>>>>>>>> We can certainly make a smoother experience around -fno-ghci-sandbox
>>>>>>>> for
>>>>>>>> using GUI libraries.
>>>>>>>>
>>>>>>>>
>>>>>>>>> It is not clear to me from Simon's original post how linking to all
>>>>>>>>> of
>>>>>>>>> those C++ libs can continue to work if dynamic linking is removed
>>>>>>>>> in 7.10? Perhaps I misunderstand what you mean by "revert to
>>>>>>>>> static linking"?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> When I say "revert to static linking" I mean make GHCi static linked,
>>>>>>>> and
>>>>>>>> have it load Haskell code compiled for static linking using the RTS
>>>>>>>> linker
>>>>>>>> (like it did in 7.6).  Foreign libraries would still be loaded using
>>>>>>>> the
>>>>>>>> system linker, as they always have been.
>>>>>>>>
>>>>>>>> To be clear, I'm not officially proposing that we drop dynamic
>>>>>>>> linking,
>>>>>>>> but
>>>>>>>> I think it's worthwhile exploring the design space again, given that
>>>>>>>> we
>>>>>>>> know
>>>>>>>> dynamic linking has been tougher than we expected.
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Simon
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>> Dominick
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Wed, Apr 30, 2014 at 9:26 PM, George Colpitts
>>>>>>>>> <george.colpitts at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> To elaborate, in the past, I had a lot of problems using libraries
>>>>>>>>>> from
>>>>>>>>>> the
>>>>>>>>>> ghci prompt on the Mac but I haven't tried recently.
>>>>>>>>>>
>>>>>>>>>> As an example, on the web page for the book the Haskell School of
>>>>>>>>>> Expression
>>>>>>>>>> it says:
>>>>>>>>>>
>>>>>>>>>> Note for OS X users: running graphics applications from GHCi is no
>>>>>>>>>> longer
>>>>>>>>>> supported. Instead, one has to compile a graphics program using GHC
>>>>>>>>>> in
>>>>>>>>>> order
>>>>>>>>>> to run it (see example/GMIExamples.lhs for an example).
>>>>>>>>>>
>>>>>>>>>> I had similar problems using the Yale Euterpea music program from
>>>>>>>>>> ghci.
>>>>>>>>>> When
>>>>>>>>>> I inquired I was referred to
>>>>>>>>>> https://ghc.haskell.org/trac/ghc/ticket/4244
>>>>>>>>>> and https://ghc.haskell.org/trac/ghc/ticket/781. I see that the
>>>>>>>>>> latter
>>>>>>>>>> is
>>>>>>>>>> now scheduled for 7.10.1
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Wed, Apr 30, 2014 at 1:45 PM, Simon Marlow <marlowsd at gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 30/04/2014 01:35, George Colpitts wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> It doesn't have anything about the dynamic linking changes made
>>>>>>>>>>>> for
>>>>>>>>>>>> 7.8.
>>>>>>>>>>>> I think it's worth mentioning the improvements we expect to get
>>>>>>>>>>>> from
>>>>>>>>>>>> that. The highlights of the release notes do mention it, so maybe
>>>>>>>>>>>> that
>>>>>>>>>>>> suffices.
>>>>>>>>>>>>
>>>>>>>>>>>> In particular, I'm hoping that it is going to fix a lot of
>>>>>>>>>>>> problems
>>>>>>>>>>>> with
>>>>>>>>>>>> using foreign libraries such as OpenGL from ghci. I could be
>>>>>>>>>>>> wrong
>>>>>>>>>>>> about
>>>>>>>>>>>> that though.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> I'd like to understand more about what those problems are.  As a
>>>>>>>>>>> data
>>>>>>>>>>> point, at Facebook we're using static linking (I compiled GHC with
>>>>>>>>>>> DYNAMIC_GHC_PROGRAMS=NO), we're loading upwards of 50 3rd-party
>>>>>>>>>>> C++
>>>>>>>>>>> libraries and one gigantic shared library consisting of a ton of
>>>>>>>>>>> in-house
>>>>>>>>>>> C++ code, together with all our Haskell code into GHCi, and it
>>>>>>>>>>> works
>>>>>>>>>>> perfectly.  The key to using the static linker is to not use it
>>>>>>>>>>> for
>>>>>>>>>>> C++
>>>>>>>>>>> code
>>>>>>>>>>> - you want all your external C++ code in shared libraries and load
>>>>>>>>>>> those
>>>>>>>>>>> using the system linker.
>>>>>>>>>>>
>>>>>>>>>>> Dynamic linking has been a huge headache in GHC, and it's not
>>>>>>>>>>> clear
>>>>>>>>>>> that
>>>>>>>>>>> it's an overall improvement compared with the static linker.  Now
>>>>>>>>>>> that
>>>>>>>>>>> 7.8
>>>>>>>>>>> is out of the way, it's time to have a conversation about whether
>>>>>>>>>>> we
>>>>>>>>>>> want to
>>>>>>>>>>> do dynamic linking again for 7.10, or revert to static linking.  I
>>>>>>>>>>> think
>>>>>>>>>>> Austin is going to update
>>>>>>>>>>> https://ghc.haskell.org/trac/ghc/wiki/DynamicGhcPrograms, and then
>>>>>>>>>>> we'll
>>>>>>>>>>> see
>>>>>>>>>>> where we stand.
>>>>>>>>>>>
>>>>>>>>>>> Cheers,
>>>>>>>>>>> Simon
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Tue, Apr 29, 2014 at 6:13 PM, Simon Peyton Jones
>>>>>>>>>>>> <simonpj at microsoft.com <mailto:simonpj at microsoft.com>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>          As Austin has told us, there's a draft of the *GHC Status
>>>>>>>>>>>> Report
>>>>>>>>>>>> for
>>>>>>>>>>>>          the HCAR*, here:____
>>>>>>>>>>>>
>>>>>>>>>>>>          https://ghc.haskell.org/trac/ghc/wiki/Status/May14____
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>          Have we missed out something  you have been working hard
>>>>>>>>>>>> on?
>>>>>>>>>>>> Do
>>>>>>>>>>>>          take a moment to add a bullet in an appropriate place
>>>>>>>>>>>> (it's
>>>>>>>>>>>> a
>>>>>>>>>>>>          wiki).  I'd like to be sure that we are giving credit to
>>>>>>>>>>>> all
>>>>>>>>>>>> the
>>>>>>>>>>>>          appropriate people, so please help us fix that too.  GHC
>>>>>>>>>>>> is
>>>>>>>>>>>> a
>>>>>>>>>>>> team
>>>>>>>>>>>>          effort.____
>>>>>>>>>>>>
>>>>>>>>>>>>          Deadline is 1 May I think.____
>>>>>>>>>>>>
>>>>>>>>>>>>          Thanks____
>>>>>>>>>>>>
>>>>>>>>>>>>          Simon____
>>>>>>>>>>>>
>>>>>>>>>>>>          __ __
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>          _______________________________________________
>>>>>>>>>>>>          ghc-devs mailing list
>>>>>>>>>>>>          ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>>>>>>>>>>>>          http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> ghc-devs mailing list
>>>>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> ghc-devs mailing list
>>>>>>>>>> ghc-devs at haskell.org
>>>>>>>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>>>>>>>
>>>>>>>>
>>>>>>
>>>>
>>

From marlowsd at gmail.com  Fri May  9 15:47:56 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 09 May 2014 16:47:56 +0100
Subject: Bugsquashing at ZuriHac
In-Reply-To: <1399467281.2258.33.camel@kirk>
References: <1399467281.2258.33.camel@kirk>
Message-ID: <536CF8AC.3030508@gmail.com>

Sounds like a great idea! I'll be around to answer questions.

Cheers,
Simon

On 07/05/2014 13:54, Joachim Breitner wrote:
> Dear fellow deverlopers,
>
> I?ll be attending ZuriHac in a month time, without a project of my own
> that I plan to pursue. Hence I?m considering to run a ?GHC bug
> squashing? project there. Besides getting bugs squashed, this should
> hopefully attract new contributors and allow us to teach them the ropes
> and tricks and the need for notes efficiently by shoulder-surfing and
> face-to-face discussions.
>
> Who of you is going to attend ZuriHac as well and will want to join me
> in managing this project?
>
> Also, this means its a good time to start tagging tickets as suitable
> for beginners. I know we have a list somewhere, but googling for "ghc
> easy tickets" does not find it... but clicking through the wiki I find
> https://ghc.haskell.org/trac/ghc/wiki/Newcomers#Fixingabug
> which is unfortunately quite small.
>
> I?ll also look for tickets of difficulty easy and moderate.
>
> Greetings,
> Joachim
>
>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From mail at joachim-breitner.de  Fri May  9 15:54:47 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Fri, 09 May 2014 17:54:47 +0200
Subject: Bugsquashing at ZuriHac
In-Reply-To: <536CA16F.10609@gmx.com>
References: <1399467281.2258.33.camel@kirk> <536CA16F.10609@gmx.com>
Message-ID: <1399650887.13456.2.camel@kirk>

Hi,

Am Freitag, den 09.05.2014, 11:35 +0200 schrieb Lorenzo Tabacchini:
> I am a GHC-newbie happy to help.
> Besides cloning, building the sources and reading the introductory pages 
> on the GHC wiki, is there anything else I can do to prepare for the event?
> Are there any easier parts to start reading the code?

not sure, and I was a newbie very recently as well, so I can only give
so much guidance and I won?t promise success. At least we?ll have
fun :-)

If you are ready to build the code, then that?s a good start. Bonus
points if you can know how to validate the code, and even better if you
have a dedicated checkout for that.

Of course, you can skim through the list of bugs and mark some as
interesting to you (but putting yourself on the CC list) already.

Greetings,
Joachim

-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From marlowsd at gmail.com  Fri May  9 15:54:59 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 09 May 2014 16:54:59 +0100
Subject: cgrun051
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C0B2B9E@DB3PRD3001MB020.064d.mgd.msft.net>
References: <618BE556AADD624C9C918AA5D5911BEF0C0B2B9E@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <536CFA53.90707@gmail.com>

On 05/05/2014 14:15, Simon Peyton Jones wrote:
> I?m getting
>
> Unexpected failures:
>
>     .  cgrun051 [bad exit code]
> (normal,hpc,optasm,profasm,ghci,threaded1,threaded2,dyn,profthreaded,optllvm,g1)
>
> =====> cgrun051(optasm) 46 of 98 [0, 2, 0]
>
> cd . && '/5playpen/simonpj/HEAD-2/inplace/bin/ghc-stage2' -fforce-recomp
> -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts
> -fno-ghci-history -o cgrun051 cgrun051.hs -O -fasm
>  >cgrun051.comp.stderr 2>&1
>
> cd . && ./cgrun051    </dev/null >cgrun051.run.stdout 2>cgrun051.run.stderr
>
> Wrong exit code (expected 0 , actual 1 )
>
> cgrun051 throws an exception, so presumably should have exit code 1.
> And it does. But the test seems to test for exit code 0.

Austin changed it in this commit:

commit 5bf22f06ef71f61094de7564dee770f136d5481a
Author: Austin Seipp <austin at well-typed.com>
Date:   Sun Apr 27 21:11:23 2014 -0500

     Remove external core

     Signed-off-by: Austin Seipp <austin at well-typed.com>

Austin - any idea why?

Cheers,
Simon

> Why does the test check for 0 not 1?  And what has changed?
>
> This is HEAD.  I don?t have a virgin head right now, but I don?t think
> any of my changes could cause this.
>
> I am also seeing the
>
>     ffi/should_compile     cc004 [stderr mismatch] (normal)
>
> errors that Joachim reported.  It?d be great if someone could fix that,
> whatever it is.
>
> SImon
>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From simonpj at microsoft.com  Fri May  9 16:33:45 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Fri, 9 May 2014 16:33:45 +0000
Subject: Bugsquashing at ZuriHac
In-Reply-To: <536CF8AC.3030508@gmail.com>
References: <1399467281.2258.33.camel@kirk> <536CF8AC.3030508@gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C851E99@DB3PRD3001MB020.064d.mgd.msft.net>

I'll try to help too, but I won't be there in person

Thanks for organising this

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Simon
| Marlow
| Sent: 09 May 2014 16:48
| To: Joachim Breitner; ghc-devs at haskell.org
| Subject: Re: Bugsquashing at ZuriHac
| 
| Sounds like a great idea! I'll be around to answer questions.
| 
| Cheers,
| Simon
| 
| On 07/05/2014 13:54, Joachim Breitner wrote:
| > Dear fellow deverlopers,
| >
| > I'll be attending ZuriHac in a month time, without a project of my own
| > that I plan to pursue. Hence I'm considering to run a "GHC bug
| > squashing" project there. Besides getting bugs squashed, this should
| > hopefully attract new contributors and allow us to teach them the
| > ropes and tricks and the need for notes efficiently by
| > shoulder-surfing and face-to-face discussions.
| >
| > Who of you is going to attend ZuriHac as well and will want to join me
| > in managing this project?
| >
| > Also, this means its a good time to start tagging tickets as suitable
| > for beginners. I know we have a list somewhere, but googling for "ghc
| > easy tickets" does not find it... but clicking through the wiki I find
| > https://ghc.haskell.org/trac/ghc/wiki/Newcomers#Fixingabug
| > which is unfortunately quite small.
| >
| > I'll also look for tickets of difficulty easy and moderate.
| >
| > Greetings,
| > Joachim
| >
| >
| >
| >
| > _______________________________________________
| > ghc-devs mailing list
| > ghc-devs at haskell.org
| > http://www.haskell.org/mailman/listinfo/ghc-devs
| >
| _______________________________________________
| ghc-devs mailing list
| ghc-devs at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-devs

From austin at well-typed.com  Sat May 10 02:55:08 2014
From: austin at well-typed.com (Austin Seipp)
Date: Fri, 9 May 2014 21:55:08 -0500
Subject: cgrun051
In-Reply-To: <536CFA53.90707@gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF0C0B2B9E@DB3PRD3001MB020.064d.mgd.msft.net>
 <536CFA53.90707@gmail.com>
Message-ID: <CAEs96n0nLovOAgSdhAmxUi3VhRD6q+FUw2jz=mFVanTJ4pfeSg@mail.gmail.com>

Bah, just a brainfart it seems. cgrun051 and cc004 are fixed.

On Fri, May 9, 2014 at 10:54 AM, Simon Marlow <marlowsd at gmail.com> wrote:
> On 05/05/2014 14:15, Simon Peyton Jones wrote:
>>
>> I?m getting
>>
>> Unexpected failures:
>>
>>     .  cgrun051 [bad exit code]
>>
>> (normal,hpc,optasm,profasm,ghci,threaded1,threaded2,dyn,profthreaded,optllvm,g1)
>>
>> =====> cgrun051(optasm) 46 of 98 [0, 2, 0]
>>
>> cd . && '/5playpen/simonpj/HEAD-2/inplace/bin/ghc-stage2' -fforce-recomp
>> -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts
>> -fno-ghci-history -o cgrun051 cgrun051.hs -O -fasm
>>  >cgrun051.comp.stderr 2>&1
>>
>> cd . && ./cgrun051    </dev/null >cgrun051.run.stdout
>> 2>cgrun051.run.stderr
>>
>> Wrong exit code (expected 0 , actual 1 )
>>
>> cgrun051 throws an exception, so presumably should have exit code 1.
>> And it does. But the test seems to test for exit code 0.
>
>
> Austin changed it in this commit:
>
> commit 5bf22f06ef71f61094de7564dee770f136d5481a
> Author: Austin Seipp <austin at well-typed.com>
> Date:   Sun Apr 27 21:11:23 2014 -0500
>
>     Remove external core
>
>     Signed-off-by: Austin Seipp <austin at well-typed.com>
>
> Austin - any idea why?
>
> Cheers,
> Simon
>
>> Why does the test check for 0 not 1?  And what has changed?
>>
>> This is HEAD.  I don?t have a virgin head right now, but I don?t think
>> any of my changes could cause this.
>>
>> I am also seeing the
>>
>>     ffi/should_compile     cc004 [stderr mismatch] (normal)
>>
>> errors that Joachim reported.  It?d be great if someone could fix that,
>> whatever it is.
>>
>> SImon
>>
>>
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>



-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/

From ekmett at gmail.com  Sat May 10 06:32:58 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Sat, 10 May 2014 16:32:58 +1000
Subject: Bugsquashing at ZuriHac
In-Reply-To: <1399467281.2258.33.camel@kirk>
References: <1399467281.2258.33.camel@kirk>
Message-ID: <CAJumaK_TLJpm9Z4vJmW8djuUEXABKs70kwFqtOuxmhK_J5J+wA@mail.gmail.com>

I'll be there, and more than willing to help on the open core library
issues for base and the like.

-Edward


On Wed, May 7, 2014 at 10:54 PM, Joachim Breitner
<mail at joachim-breitner.de>wrote:

> Dear fellow deverlopers,
>
> I?ll be attending ZuriHac in a month time, without a project of my own
> that I plan to pursue. Hence I?m considering to run a ?GHC bug
> squashing? project there. Besides getting bugs squashed, this should
> hopefully attract new contributors and allow us to teach them the ropes
> and tricks and the need for notes efficiently by shoulder-surfing and
> face-to-face discussions.
>
> Who of you is going to attend ZuriHac as well and will want to join me
> in managing this project?
>
> Also, this means its a good time to start tagging tickets as suitable
> for beginners. I know we have a list somewhere, but googling for "ghc
> easy tickets" does not find it... but clicking through the wiki I find
> https://ghc.haskell.org/trac/ghc/wiki/Newcomers#Fixingabug
> which is unfortunately quite small.
>
> I?ll also look for tickets of difficulty easy and moderate.
>
> Greetings,
> Joachim
>
>
> --
> Joachim ?nomeata? Breitner
>   mail at joachim-breitner.de ? http://www.joachim-breitner.de/
>   Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
>   Debian Developer: nomeata at debian.org
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From mail at joachim-breitner.de  Sat May 10 09:42:33 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Sat, 10 May 2014 11:42:33 +0200
Subject: How to fix T5979?
Message-ID: <1399714953.2557.11.camel@kirk>

Hi,

SPJ recently committed:

        commit 12332f1add3eb9615a62abb36898819b2e67e865
        Author: Simon Peyton Jones <simonpj at microsoft.com>
        Date:   Thu May 8 13:06:05 2014 +0100
        
            Error message wibble, presumably due to recent changes in transformers
        
        diff --git a/testsuite/tests/ghci/scripts/T5979.stderr b/testsuite/tests/ghci/scripts/T5979.stderr
        index fe6e012..7230011 100644
        --- a/testsuite/tests/ghci/scripts/T5979.stderr
        +++ b/testsuite/tests/ghci/scripts/T5979.stderr
        @@ -1,4 +1,4 @@
         
         <no location info>:
             Could not find module ?Control.Monad.Trans.State?
        -    It is not a module in the current program, or in any known package.
        +    It is a member of the hidden package ?transformers-0.3.0.0?.
        
But that breaks when transformers is indeed not installed (as it is the
case in a minimal validation run such as on travis):


        Actual stderr output differs from expected:
        --- ./ghci/scripts/T5979.stderr	2014-05-10 03:10:07.860423047 +0000
        +++ ./ghci/scripts/T5979.run.stderr	2014-05-10 03:32:54.861642002 +0000
        @@ -1,4 +1,4 @@
         
         <no location info>:
             Could not find module ?Control.Monad.Trans.State?
        -    It is a member of the hidden package ?transformers-0.3.0.0?.
        +    It is not a module in the current program, or in any known package.
        *** unexpected failure for T5979(ghci)


For now I added a reqlib('transformers') to the test, hoping that that
helps. But why should the error message mention "transformers" at all
when the package import is actually explicit to import "nonexisting"?

        $ cat T5979.script 
        :set -XPackageImports
        import "nonexisting" Control.Monad.Trans.State
        import "transformers" Control.Monad.Trans.State
        import "transformers" Control.Monad.Trans.Reader
        
I am a bit worried that there is a regression here and SPJs commit just
hides it. But gotta run now and cannot investigate further.

Greetings,
Joachim



-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From mail at joachim-breitner.de  Sat May 10 14:12:28 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Sat, 10 May 2014 16:12:28 +0200
Subject: How to fix T5979?
In-Reply-To: <1399714953.2557.11.camel@kirk>
References: <1399714953.2557.11.camel@kirk>
Message-ID: <1399731148.6458.3.camel@kirk>

Hi,

Am Samstag, den 10.05.2014, 11:42 +0200 schrieb Joachim Breitner:
> For now I added a reqlib('transformers') to the test, hoping that that
> helps. But why should the error message mention "transformers" at all
> when the package import is actually explicit to import "nonexisting"?

that did not help, further supporting my theory that something strange
was with SPJ?s work tree. Maybe for some reason transformers got
de-registered in your package data base?

Can someone else with an up-to-date tree run "make TEST=T5979" and see
if it works for him?

Greetings,
Joachim

-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From mail at joachim-breitner.de  Sat May 10 16:30:40 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Sat, 10 May 2014 18:30:40 +0200
Subject: How to fix T5979?
In-Reply-To: <1399731148.6458.3.camel@kirk>
References: <1399714953.2557.11.camel@kirk> <1399731148.6458.3.camel@kirk>
Message-ID: <1399739440.13190.2.camel@kirk>

Hi,

Am Samstag, den 10.05.2014, 16:12 +0200 schrieb Joachim Breitner:
> Am Samstag, den 10.05.2014, 11:42 +0200 schrieb Joachim Breitner:
> > For now I added a reqlib('transformers') to the test, hoping that that
> > helps. But why should the error message mention "transformers" at all
> > when the package import is actually explicit to import "nonexisting"?
> 
> that did not help, further supporting my theory that something strange
> was with SPJ?s work tree. Maybe for some reason transformers got
> de-registered in your package data base?
> 
> Can someone else with an up-to-date tree run "make TEST=T5979" and see
> if it works for him?

now I also get SPJ?s output. I did not get it until I ran "git submodule
update && make", and the reason might be that now, two versions of
transformers are registered in the inplace data base

$ ./inplace/bin/ghc-pkg list|grep transformers
    transformers-0.3.0.0
    transformers-0.4.0.0
and after
$ ./inplace/bin/ghc-pkg unregister transformers-0.3.0.0
I get the original output.

Reverting the test output for now.

Greetings,
Joachim

-- 
Joachim Breitner
  e-Mail: mail at joachim-breitner.de
  Homepage: http://www.joachim-breitner.de
  Jabber-ID: nomeata at joachim-breitner.de

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From hvriedel at gmail.com  Sat May 10 16:49:08 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Sat, 10 May 2014 18:49:08 +0200
Subject: How to fix T5979?
In-Reply-To: <1399739440.13190.2.camel@kirk> (Joachim Breitner's message of
 "Sat, 10 May 2014 18:30:40 +0200")
References: <1399714953.2557.11.camel@kirk> <1399731148.6458.3.camel@kirk>
 <1399739440.13190.2.camel@kirk>
Message-ID: <87eh01lgu3.fsf@gmail.com>

On 2014-05-10 at 18:30:40 +0200, Joachim Breitner wrote:

[...]

> now I also get SPJ?s output. I did not get it until I ran "git submodule
> update && make", and the reason might be that now, two versions of
> transformers are registered in the inplace data base
>
> $ ./inplace/bin/ghc-pkg list|grep transformers
>     transformers-0.3.0.0
>     transformers-0.4.0.0
> and after
> $ ./inplace/bin/ghc-pkg unregister transformers-0.3.0.0
> I get the original output.
>
> Reverting the test output for now.

very strange... where does transformers-0.3.0.0 come from? does the
build-tree contain a second transformers folder?

From carter.schonwald at gmail.com  Sat May 10 16:52:20 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Sat, 10 May 2014 12:52:20 -0400
Subject: How to fix T5979?
In-Reply-To: <87eh01lgu3.fsf@gmail.com>
References: <1399714953.2557.11.camel@kirk> <1399731148.6458.3.camel@kirk>
 <1399739440.13190.2.camel@kirk> <87eh01lgu3.fsf@gmail.com>
Message-ID: <CAHYVw0znd0cZobJEOTa0w+xvg4JdPK8_=e8MT5-v1M=fVPGGog@mail.gmail.com>

ghc 7.8 is built with 0.3.0.0 in its global package db right?


On Sat, May 10, 2014 at 12:49 PM, Herbert Valerio Riedel <hvriedel at gmail.com
> wrote:

> On 2014-05-10 at 18:30:40 +0200, Joachim Breitner wrote:
>
> [...]
>
> > now I also get SPJ?s output. I did not get it until I ran "git submodule
> > update && make", and the reason might be that now, two versions of
> > transformers are registered in the inplace data base
> >
> > $ ./inplace/bin/ghc-pkg list|grep transformers
> >     transformers-0.3.0.0
> >     transformers-0.4.0.0
> > and after
> > $ ./inplace/bin/ghc-pkg unregister transformers-0.3.0.0
> > I get the original output.
> >
> > Reverting the test output for now.
>
> very strange... where does transformers-0.3.0.0 come from? does the
> build-tree contain a second transformers folder?
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From fuuzetsu at fuuzetsu.co.uk  Sun May 11 14:27:01 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Sun, 11 May 2014 16:27:01 +0200
Subject: Loading package integer-gmp ... <command line>: can't load .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
Message-ID: <536F88B5.7020602@fuuzetsu.co.uk>

Hi,

Trying to compile GHC in the source tree on NixOS and meeting with
failure with:

"inplace/bin/ghc-stage2" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O
-Werror -Wall -H64m -O0    -package-name vector-0.10.9.1
-hide-all-packages -i -ilibraries/vector/.
-ilibraries/vector/dist-install/build
-ilibraries/vector/dist-install/build/autogen
-Ilibraries/vector/dist-install/build
-Ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/include
-Ilibraries/vector/internal   -optP-DVECTOR_BOUNDS_CHECKS -optP-include
-optPlibraries/vector/dist-install/build/autogen/cabal_macros.h -package
base-4.7.1.0 -package deepseq-1.3.0.2 -package ghc-prim-0.3.1.0 -package
primitive-0.5.2.1 -O2 -XHaskell98 -XCPP -XDeriveDataTypeable -O2 -O
-dcore-lint -fno-warn-deprecated-flags  -no-user-package-db -rtsopts
-Wwarn     -odir libraries/vector/dist-install/build -hidir
libraries/vector/dist-install/build -stubdir
libraries/vector/dist-install/build  -dynamic-too -c
libraries/vector/./Data/Vector/Fusion/Stream/Monadic.hs -o
libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
-dyno
libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.dyn_o
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... <command line>: can't load .so/.DLL for:
libgmp.so (libgmp.so: cannot open shared object file: No such file or
directory)

While libgmp isn't anywhere obvious, below is my build.mk and content of
the pointed-to directories. Am I missing something here? Is something
ignoring the configure option maybe?

[shana at lenalee:~/programming/ghc/mk]$ cat build.mk
libraries/integer-gmp_CONFIGURE_OPTS +=
--configure-option=--with-gmp-libraries=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
libraries/integer-gmp_CONFIGURE_OPTS +=
--configure-option=--with-gmp-includes=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
DYNAMIC_BY_DEFAULT = NO

[shana at lenalee:~/programming/ghc/mk]$ l
/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
total 604K
dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
-r-xr-xr-x 1 root nixbld  949 Jan  1  1970 libgmp.la
lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so -> libgmp.so.10.1.3
lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so.10 -> libgmp.so.10.1.3
-r-xr-xr-x 1 root nixbld 556K Jan  1  1970 libgmp.so.10.1.3
-r-xr-xr-x 1 root nixbld 1.1K Jan  1  1970 libgmpxx.la
lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so -> libgmpxx.so.4.3.3
lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so.4 ->
libgmpxx.so.4.3.3
-r-xr-xr-x 1 root nixbld  30K Jan  1  1970 libgmpxx.so.4.3.3

[shana at lenalee:~/programming/ghc/mk]$ l
/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
total 204K
dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
-r--r--r-- 1 root nixbld  78K Jan  1  1970 gmp.h
-r--r--r-- 1 root nixbld 114K Jan  1  1970 gmpxx.h

-- 
Mateusz K.

From gergely at risko.hu  Sun May 11 15:19:46 2014
From: gergely at risko.hu (Gergely Risko)
Date: Sun, 11 May 2014 17:19:46 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such
 file or directory)
References: <536F88B5.7020602@fuuzetsu.co.uk>
Message-ID: <87ppjkgx65.fsf@gergely.risko.hu>

Hi,

Interesting.  You're already using the libraries/integer-gmp_CONFIGURE_OPTS
magic that I wanted to advise.

I think you should record the configure and build output, so it's easy
to look around in it afterwards (and don't use -j for make, because then
the output is mixed).  I would look for gmp relevant bits in that, to
see if it found it alright.  You can also try --with-intree-gmp (or
something like that) to force a statically linked intree gmp, that will
just work.

Also, I think "inplace/bin/ghc-stage2 --interactive" will fail with the
same error message, and you can "strace -f -e file" that command to see
where the libgmp.so is searched for. It should definitely be searched
for in your /nix/store/qnky...  directory with your build.mk.  I use the
same strategy here:
https://github.com/nilcons/ceh/blob/master/README.compile-ghc-with-ceh

If you just want to quickly try something and not really interested in
figuring out what's wrong, then a quick and dirty fix is to
"export LD_LIBRARY_PATH=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib"
before the whole build or anytime afterwards when you want to use the
compiled GHC.

But I'd really like to understand what caused it, so if you have time,
please investigate!

Gergely

On Sun, 11 May 2014 16:27:01 +0200, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> writes:

> Hi,
>
> Trying to compile GHC in the source tree on NixOS and meeting with
> failure with:
>
> "inplace/bin/ghc-stage2" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O
> -Werror -Wall -H64m -O0    -package-name vector-0.10.9.1
> -hide-all-packages -i -ilibraries/vector/.
> -ilibraries/vector/dist-install/build
> -ilibraries/vector/dist-install/build/autogen
> -Ilibraries/vector/dist-install/build
> -Ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/include
> -Ilibraries/vector/internal   -optP-DVECTOR_BOUNDS_CHECKS -optP-include
> -optPlibraries/vector/dist-install/build/autogen/cabal_macros.h -package
> base-4.7.1.0 -package deepseq-1.3.0.2 -package ghc-prim-0.3.1.0 -package
> primitive-0.5.2.1 -O2 -XHaskell98 -XCPP -XDeriveDataTypeable -O2 -O
> -dcore-lint -fno-warn-deprecated-flags  -no-user-package-db -rtsopts
> -Wwarn     -odir libraries/vector/dist-install/build -hidir
> libraries/vector/dist-install/build -stubdir
> libraries/vector/dist-install/build  -dynamic-too -c
> libraries/vector/./Data/Vector/Fusion/Stream/Monadic.hs -o
> libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
> -dyno
> libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.dyn_o
> Loading package ghc-prim ... linking ... done.
> Loading package integer-gmp ... <command line>: can't load .so/.DLL for:
> libgmp.so (libgmp.so: cannot open shared object file: No such file or
> directory)
>
> While libgmp isn't anywhere obvious, below is my build.mk and content of
> the pointed-to directories. Am I missing something here? Is something
> ignoring the configure option maybe?
>
> [shana at lenalee:~/programming/ghc/mk]$ cat build.mk
> libraries/integer-gmp_CONFIGURE_OPTS +=
> --configure-option=--with-gmp-libraries=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
> libraries/integer-gmp_CONFIGURE_OPTS +=
> --configure-option=--with-gmp-includes=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
> DYNAMIC_BY_DEFAULT = NO
>
> [shana at lenalee:~/programming/ghc/mk]$ l
> /nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
> total 604K
> dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
> dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
> -r-xr-xr-x 1 root nixbld  949 Jan  1  1970 libgmp.la
> lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so -> libgmp.so.10.1.3
> lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so.10 -> libgmp.so.10.1.3
> -r-xr-xr-x 1 root nixbld 556K Jan  1  1970 libgmp.so.10.1.3
> -r-xr-xr-x 1 root nixbld 1.1K Jan  1  1970 libgmpxx.la
> lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so -> libgmpxx.so.4.3.3
> lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so.4 ->
> libgmpxx.so.4.3.3
> -r-xr-xr-x 1 root nixbld  30K Jan  1  1970 libgmpxx.so.4.3.3
>
> [shana at lenalee:~/programming/ghc/mk]$ l
> /nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
> total 204K
> dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
> dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
> -r--r--r-- 1 root nixbld  78K Jan  1  1970 gmp.h
> -r--r--r-- 1 root nixbld 114K Jan  1  1970 gmpxx.h


From fuuzetsu at fuuzetsu.co.uk  Sun May 11 17:24:34 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Sun, 11 May 2014 19:24:34 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
In-Reply-To: <536F88B5.7020602@fuuzetsu.co.uk>
References: <536F88B5.7020602@fuuzetsu.co.uk>
Message-ID: <536FB252.8000703@fuuzetsu.co.uk>

On 05/11/2014 04:27 PM, Mateusz Kowalczyk wrote:
> Hi,
> 
> Trying to compile GHC in the source tree on NixOS and meeting with
> failure with:
> 
> "inplace/bin/ghc-stage2" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O
> -Werror -Wall -H64m -O0    -package-name vector-0.10.9.1
> -hide-all-packages -i -ilibraries/vector/.
> -ilibraries/vector/dist-install/build
> -ilibraries/vector/dist-install/build/autogen
> -Ilibraries/vector/dist-install/build
> -Ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/include
> -Ilibraries/vector/internal   -optP-DVECTOR_BOUNDS_CHECKS -optP-include
> -optPlibraries/vector/dist-install/build/autogen/cabal_macros.h -package
> base-4.7.1.0 -package deepseq-1.3.0.2 -package ghc-prim-0.3.1.0 -package
> primitive-0.5.2.1 -O2 -XHaskell98 -XCPP -XDeriveDataTypeable -O2 -O
> -dcore-lint -fno-warn-deprecated-flags  -no-user-package-db -rtsopts
> -Wwarn     -odir libraries/vector/dist-install/build -hidir
> libraries/vector/dist-install/build -stubdir
> libraries/vector/dist-install/build  -dynamic-too -c
> libraries/vector/./Data/Vector/Fusion/Stream/Monadic.hs -o
> libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
> -dyno
> libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.dyn_o
> Loading package ghc-prim ... linking ... done.
> Loading package integer-gmp ... <command line>: can't load .so/.DLL for:
> libgmp.so (libgmp.so: cannot open shared object file: No such file or
> directory)
> 
> While libgmp isn't anywhere obvious, below is my build.mk and content of
> the pointed-to directories. Am I missing something here? Is something
> ignoring the configure option maybe?
> 
> [shana at lenalee:~/programming/ghc/mk]$ cat build.mk
> libraries/integer-gmp_CONFIGURE_OPTS +=
> --configure-option=--with-gmp-libraries=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
> libraries/integer-gmp_CONFIGURE_OPTS +=
> --configure-option=--with-gmp-includes=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
> DYNAMIC_BY_DEFAULT = NO
> 
> [shana at lenalee:~/programming/ghc/mk]$ l
> /nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
> total 604K
> dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
> dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
> -r-xr-xr-x 1 root nixbld  949 Jan  1  1970 libgmp.la
> lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so -> libgmp.so.10.1.3
> lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so.10 -> libgmp.so.10.1.3
> -r-xr-xr-x 1 root nixbld 556K Jan  1  1970 libgmp.so.10.1.3
> -r-xr-xr-x 1 root nixbld 1.1K Jan  1  1970 libgmpxx.la
> lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so -> libgmpxx.so.4.3.3
> lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so.4 ->
> libgmpxx.so.4.3.3
> -r-xr-xr-x 1 root nixbld  30K Jan  1  1970 libgmpxx.so.4.3.3
> 
> [shana at lenalee:~/programming/ghc/mk]$ l
> /nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
> total 204K
> dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
> dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
> -r--r--r-- 1 root nixbld  78K Jan  1  1970 gmp.h
> -r--r--r-- 1 root nixbld 114K Jan  1  1970 gmpxx.h
> 

You can find the full build log (including make clean) at [1] as it was
requested in private.

[1]: http://fuuzetsu.co.uk/misc/ghclog-20140510

-- 
Mateusz K.

From fuuzetsu at fuuzetsu.co.uk  Sun May 11 19:00:16 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Sun, 11 May 2014 21:00:16 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
In-Reply-To: <536F88B5.7020602@fuuzetsu.co.uk>
References: <536F88B5.7020602@fuuzetsu.co.uk>
Message-ID: <536FC8C0.20005@fuuzetsu.co.uk>

On 05/11/2014 05:19 PM, Gergely Risko wrote:
> The following message is a courtesy copy of an article
> that has been posted to gmane.comp.lang.haskell.ghc.devel as well.
>
> Hi,
>
> Interesting.  You're already using the
libraries/integer-gmp_CONFIGURE_OPTS
> magic that I wanted to advise.
>
> I think you should record the configure and build output, so it's easy
> to look around in it afterwards (and don't use -j for make, because then
> the output is mixed).  I would look for gmp relevant bits in that, to
> see if it found it alright.  You can also try --with-intree-gmp (or
> something like that) to force a statically linked intree gmp, that will
> just work.

I have posted the log in my previous reply to the thread. I'm unsure
what -j option was used, I forgot to switch it off. Let me know if you
want it re-ran without -j.

Do you know what exact setup I need for --with-intree-gmp?

> Also, I think "inplace/bin/ghc-stage2 --interactive" will fail with the
> same error message, and you can "strace -f -e file" that command to see
> where the libgmp.so is searched for. It should definitely be searched
> for in your /nix/store/qnky...  directory with your build.mk.  I use the
> same strategy here:
> https://github.com/nilcons/ceh/blob/master/README.compile-ghc-with-ceh

You're right that stage2 --interactive fails with the error. I attach
the result of strace. It seems like a whole lot of stuff is missing.

> If you just want to quickly try something and not really interested in
> figuring out what's wrong, then a quick and dirty fix is to
> "export
LD_LIBRARY_PATH=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib"
> before the whole build or anytime afterwards when you want to use the
> compiled GHC.

That's not an option considering that particular store might be garbage
collected if it's not registered as being used. I'm unsure of the
details but simply said that's a very bad workaround on my distro.

> But I'd really like to understand what caused it, so if you have time,
> please investigate!

I definitely need to solve this properly as I need GHC HEAD for
development and I need to change the build system of it a bit for
accommodate for some Haddock changes.

> Gergely

Apologies for those using threaded conversations, I have no idea how to
reply to something that shows up as a newsgroup posting from my e-mail
client, it seems Reply-To doesn't get set.

> On Sun, 11 May 2014 16:27:01 +0200, Mateusz Kowalczyk
<fuuzetsu at fuuzetsu.co.uk> writes:
>
>> Hi,
>>
>> Trying to compile GHC in the source tree on NixOS and meeting with
>> failure with:
>>
>> "inplace/bin/ghc-stage2" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O
>> -Werror -Wall -H64m -O0    -package-name vector-0.10.9.1
>> -hide-all-packages -i -ilibraries/vector/.
>> -ilibraries/vector/dist-install/build
>> -ilibraries/vector/dist-install/build/autogen
>> -Ilibraries/vector/dist-install/build
>> -Ilibraries/vector/dist-install/build/autogen -Ilibraries/vector/include
>> -Ilibraries/vector/internal   -optP-DVECTOR_BOUNDS_CHECKS -optP-include
>> -optPlibraries/vector/dist-install/build/autogen/cabal_macros.h -package
>> base-4.7.1.0 -package deepseq-1.3.0.2 -package ghc-prim-0.3.1.0 -package
>> primitive-0.5.2.1 -O2 -XHaskell98 -XCPP -XDeriveDataTypeable -O2 -O
>> -dcore-lint -fno-warn-deprecated-flags  -no-user-package-db -rtsopts
>> -Wwarn     -odir libraries/vector/dist-install/build -hidir
>> libraries/vector/dist-install/build -stubdir
>> libraries/vector/dist-install/build  -dynamic-too -c
>> libraries/vector/./Data/Vector/Fusion/Stream/Monadic.hs -o
>> libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.o
>> -dyno
>>
libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.dyn_o
>> Loading package ghc-prim ... linking ... done.
>> Loading package integer-gmp ... <command line>: can't load .so/.DLL for:
>> libgmp.so (libgmp.so: cannot open shared object file: No such file or
>> directory)
>>
>> While libgmp isn't anywhere obvious, below is my build.mk and content of
>> the pointed-to directories. Am I missing something here? Is something
>> ignoring the configure option maybe?
>>
>> [shana at lenalee:~/programming/ghc/mk]$ cat build.mk
>> libraries/integer-gmp_CONFIGURE_OPTS +=
>>
--configure-option=--with-gmp-libraries=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
>> libraries/integer-gmp_CONFIGURE_OPTS +=
>>
--configure-option=--with-gmp-includes=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
>> DYNAMIC_BY_DEFAULT = NO
>>
>> [shana at lenalee:~/programming/ghc/mk]$ l
>> /nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib
>> total 604K
>> dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
>> dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
>> -r-xr-xr-x 1 root nixbld  949 Jan  1  1970 libgmp.la
>> lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so -> libgmp.so.10.1.3
>> lrwxrwxrwx 1 root nixbld   16 Jan  1  1970 libgmp.so.10 ->
libgmp.so.10.1.3
>> -r-xr-xr-x 1 root nixbld 556K Jan  1  1970 libgmp.so.10.1.3
>> -r-xr-xr-x 1 root nixbld 1.1K Jan  1  1970 libgmpxx.la
>> lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so ->
libgmpxx.so.4.3.3
>> lrwxrwxrwx 1 root nixbld   17 Jan  1  1970 libgmpxx.so.4 ->
>> libgmpxx.so.4.3.3
>> -r-xr-xr-x 1 root nixbld  30K Jan  1  1970 libgmpxx.so.4.3.3
>>
>> [shana at lenalee:~/programming/ghc/mk]$ l
>> /nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/include
>> total 204K
>> dr-xr-xr-x 2 root nixbld 4.0K Jan  1  1970 .
>> dr-xr-xr-x 5 root nixbld 4.0K Jan  1  1970 ..
>> -r--r--r-- 1 root nixbld  78K Jan  1  1970 gmp.h
>> -r--r--r-- 1 root nixbld 114K Jan  1  1970 gmpxx.h


-- Mateusz K.
-------------- next part --------------
execve("inplace/bin/ghc-stage2", ["inplace/bin/ghc-stage2"], [/* 112 vars */]) = 0
access("/etc/ld-nix.so.preload", R_OK)  = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfb643a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 3
open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
stat64("/home/shana/programming/ghc", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules", O_RDONLY|O_CLOEXEC) = 3
open("inplace/bin/ghc-stage2", O_RDONLY|O_LARGEFILE) = 3
execve("/home/shana/programming/ghc/inplace/lib/bin/ghc-stage2", ["/home/shana/programming/ghc/inpl"..., "-B/home/shana/programming/ghc/in"...], [/* 111 vars */]) = 0
readlink("/proc/self/exe", "/home/shana/programming/ghc/inpl"..., 4096) = 54
access("/etc/ld-nix.so.preload", R_OK)  = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
open("/run/opengl-driver/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/sse2", 0xbfcc1250) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfcc1230) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libgmp.so.10", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHShaskeline-0.7.1.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSterminfo-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSterminfo-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSghc-7.9.20140510-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSghc-7.9.20140510-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSghc-7.9.20140510-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/sse2", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/sse2", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/sse2", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/sse2", 0xbfcc0ad0) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
Process 8459 attached
Process 8460 attached
Process 8461 attached
[pid  8461] open("/sys/devices/system/cpu/online", O_RDONLY|O_CLOEXEC) = 10
[pid  8458] open("/home/shana/programming/ghc/inplace/lib/settings", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE) = 10
[pid  8458] open("/home/shana/programming/ghc/inplace/lib/platformConstants", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE) = 11
[pid  8458] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid  8458] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid  8458] stat64("/home/shana/.ghc/i386-linux-7.9.20140510/package.conf.d", 0xb2b04dc0) = -1 ENOENT (No such file or directory)
[pid  8458] stat64("/home/shana/programming/ghc/inplace/lib/package.conf.d", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid  8458] open("/home/shana/programming/ghc/inplace/lib/package.conf.d/package.cache", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE) = 10
[pid  8458] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
ghc-stage2: no input files
Usage: For basic information, try the `--help' option.
[pid  8460] +++ exited with 0 +++
[pid  8461] +++ exited with 0 +++
[pid  8459] +++ exited with 0 +++
+++ exited with 1 +++

From gergely at risko.hu  Sun May 11 19:02:09 2014
From: gergely at risko.hu (Gergely Risko)
Date: Sun, 11 May 2014 21:02:09 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such
 file or directory)
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FB252.8000703@fuuzetsu.co.uk>
Message-ID: <87eh0016mm.fsf@gergely.risko.hu>

>From your build log:
checking for __gmpz_powm in -lgmp... yes
checking for __gmpz_powm_sec in -lgmp... yes
...
checking gmp.h usability... yes
checking gmp.h presence... yes
checking for gmp.h... yes

Searching for qnkyas42nf0knps3va30y29y3zvmgy2v in your build log, it's
also seems so that the build.mk lines have effect and both the lib and
the include line is correctly passed in.

Can it be, that the "DYNAMIC_BY_DEFAULT = NO" is causing the issue?  May
I ask you to try without that?  Not as a final solution, just as a try?
Maybe you will have to add "GhcLibWays = v dyn" too, I usually not
remove the whole build.mk, just use the build.mk.sample with quick and
then add my additional stuff, like the gmp lines that are needed for NixOS.

And again, an strace on "ghc-stage2 --interactive" with "-ff -e file"
and grepping for libgmp would be very useful.

Gergely


From gergely at risko.hu  Sun May 11 19:19:32 2014
From: gergely at risko.hu (Gergely Risko)
Date: Sun, 11 May 2014 21:19:32 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such
 file or directory)
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FC8C0.20005@fuuzetsu.co.uk>
Message-ID: <878uq815tn.fsf@gergely.risko.hu>

On Sun, 11 May 2014 21:00:16 +0200, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> writes:

> Do you know what exact setup I need for --with-intree-gmp?

Nothing special is needed, actually it's autoselected if no gmp is found
during build.  (So e.g. on NixOS, where libraries are not just randomly
around everywhere in /usr/lib and /usr/include.)

So either get rid of your options and make GHC unable to find a gmp or
pass --with-intree-gmp to configure.

It's intree, because there is a gmp tar.gz intree inside the GHC source
tree, and with this option it just gets unpacked, compiled and used
statically for the build.  Furthermore, the resulting GHC will build
binaries that statically contain the biginteger GMP code, so it's a
useful hack to know about.

>> Also, I think "inplace/bin/ghc-stage2 --interactive" will fail with the
>> same error message, and you can "strace -f -e file" that command to see
>> where the libgmp.so is searched for. It should definitely be searched
>> for in your /nix/store/qnky...  directory with your build.mk.  I use the
>> same strategy here:
>> https://github.com/nilcons/ceh/blob/master/README.compile-ghc-with-ceh
>
> You're right that stage2 --interactive fails with the error. I attach
> the result of strace. It seems like a whole lot of stuff is missing.

>From your strace log:
-=-
[pid  8458] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
ghc-stage2: no input files
Usage: For basic information, try the `--help' option.
-=-

This is not an strace of a failing "ghc-stage2 --interactive".  That
wouldn't say "no input files".  Please first reproduce your error then
once you have the error, run the same command line with strace.  Thanks.

>> If you just want to quickly try something and not really interested in
>> figuring out what's wrong, then a quick and dirty fix is to
>> "export
> LD_LIBRARY_PATH=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib"
>> before the whole build or anytime afterwards when you want to use the
>> compiled GHC.
>
> That's not an option considering that particular store might be garbage
> collected if it's not registered as being used. I'm unsure of the
> details but simply said that's a very bad workaround on my distro.

It was suggested as a "quick and dirty fix".  If you need this GHC build
to fix a GHC bug and test it for five minutes, then this is an option.
If you need it for days, than it's maybe not.

NixOS gc is not ran randomly (like Git's GC, e.g. for git push or pull),
only when you do nix-garbage-collect.  And actually building your GHC
correctly will not fix your garbage collection issue, because gmp is
searched for dynamically by TH and GHCi.  So if the store goes garbage
collected, you will be screwed anyways.

If you want to have a GHC bundle that can find the same GMP days or
months later, then you should look at the strace, grep for the locations
where libgmp is searched for and put your current GMP unto one of the
locations that you most like.  And then you can run nix garbage collect
without issues.  Of course, your libc for example can still go away and
then you'll be screwed all the same.

Just having a binary somewhere on the system built outside of Nix will
not guarantee the dependent libraries to be kept.  If you want that,
you'll have to register your build properly with nix.

>> But I'd really like to understand what caused it, so if you have time,
>> please investigate!
>
> I definitely need to solve this properly as I need GHC HEAD for
> development and I need to change the build system of it a bit for
> accommodate for some Haddock changes.

Then I would look into how GHC is currently build with NixOS (they
support building GHC HEAD) and build on top of that.  Write your own
derivation with the necessary Haddock changes and call nix-build on it.
Then you would get a /nix/store path with your freshly built GHC head
and that would actually guarantee the underlying libc and gmp to not go
away at garbage collection time.

Gergely


From fuuzetsu at fuuzetsu.co.uk  Sun May 11 19:42:45 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Sun, 11 May 2014 21:42:45 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
In-Reply-To: <878uq815tn.fsf@gergely.risko.hu>
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FC8C0.20005@fuuzetsu.co.uk>
 <878uq815tn.fsf@gergely.risko.hu>
Message-ID: <536FD2B5.1090203@fuuzetsu.co.uk>

On 05/11/2014 09:19 PM, Gergely Risko wrote:
> On Sun, 11 May 2014 21:00:16 +0200, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> writes:
> 
>> Do you know what exact setup I need for --with-intree-gmp?
> 
> Nothing special is needed, actually it's autoselected if no gmp is found
> during build.  (So e.g. on NixOS, where libraries are not just randomly
> around everywhere in /usr/lib and /usr/include.)
> 
> So either get rid of your options and make GHC unable to find a gmp or
> pass --with-intree-gmp to configure.
> 
> It's intree, because there is a gmp tar.gz intree inside the GHC source
> tree, and with this option it just gets unpacked, compiled and used
> statically for the build.  Furthermore, the resulting GHC will build
> binaries that statically contain the biginteger GMP code, so it's a
> useful hack to know about.

Are there any downsides to doing this except slightly bigger binary size?

>>> Also, I think "inplace/bin/ghc-stage2 --interactive" will fail with the
>>> same error message, and you can "strace -f -e file" that command to see
>>> where the libgmp.so is searched for. It should definitely be searched
>>> for in your /nix/store/qnky...  directory with your build.mk.  I use the
>>> same strategy here:
>>> https://github.com/nilcons/ceh/blob/master/README.compile-ghc-with-ceh
>>
>> You're right that stage2 --interactive fails with the error. I attach
>> the result of strace. It seems like a whole lot of stuff is missing.
> 
> From your strace log:
> -=-
> [pid  8458] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
> ghc-stage2: no input files
> Usage: For basic information, try the `--help' option.
> -=-
> 
> This is not an strace of a failing "ghc-stage2 --interactive".  That
> wouldn't say "no input files".  Please first reproduce your error then
> once you have the error, run the same command line with strace.  Thanks.

Sorry, you're correct, I did not pass interactive. Find attached the
strace with --interactive.

>>> If you just want to quickly try something and not really interested in
>>> figuring out what's wrong, then a quick and dirty fix is to
>>> "export
>> LD_LIBRARY_PATH=/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib"
>>> before the whole build or anytime afterwards when you want to use the
>>> compiled GHC.
>>
>> That's not an option considering that particular store might be garbage
>> collected if it's not registered as being used. I'm unsure of the
>> details but simply said that's a very bad workaround on my distro.
> 
> It was suggested as a "quick and dirty fix".  If you need this GHC build
> to fix a GHC bug and test it for five minutes, then this is an option.
> If you need it for days, than it's maybe not.
> 
> NixOS gc is not ran randomly (like Git's GC, e.g. for git push or pull),
> only when you do nix-garbage-collect.  And actually building your GHC
> correctly will not fix your garbage collection issue, because gmp is
> searched for dynamically by TH and GHCi.  So if the store goes garbage
> collected, you will be screwed anyways.
> 
> If you want to have a GHC bundle that can find the same GMP days or
> months later, then you should look at the strace, grep for the locations
> where libgmp is searched for and put your current GMP unto one of the
> locations that you most like.  And then you can run nix garbage collect
> without issues.  Of course, your libc for example can still go away and
> then you'll be screwed all the same.
> 
> Just having a binary somewhere on the system built outside of Nix will
> not guarantee the dependent libraries to be kept.  If you want that,
> you'll have to register your build properly with nix.
> 
>>> But I'd really like to understand what caused it, so if you have time,
>>> please investigate!
>>
>> I definitely need to solve this properly as I need GHC HEAD for
>> development and I need to change the build system of it a bit for
>> accommodate for some Haddock changes.
> 
> Then I would look into how GHC is currently build with NixOS (they
> support building GHC HEAD) and build on top of that.  Write your own
> derivation with the necessary Haddock changes and call nix-build on it.
> Then you would get a /nix/store path with your freshly built GHC head
> and that would actually guarantee the underlying libc and gmp to not go
> away at garbage collection time.

Actually, I'm doing this already:
https://github.com/Fuuzetsu/nix-project-defaults/blob/master/ghc/default.nix

I am even running 'patchPhase && configurePhase && buildPhase' which
should technically be exactly what nix does with the package in nixpkgs.
By the way, the official nix package for HEAD isn't quite HEAD but
instead a snapshot of somewhere near HEAD and in fact I'm the person
that opened an issue and a PR to get that updated. The fact that it
builds that but doesn't build when I'm in the source tree makes me
wonder what's different.

> Gergely
> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 


-- 
Mateusz K.
-------------- next part --------------
execve("inplace/bin/ghc-stage2", ["inplace/bin/ghc-stage2", "--interactive"], [/* 79 vars */]) = 0
access("/etc/ld-nix.so.preload", R_OK)  = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfdaee90) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 3
open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
stat64("/home/shana/programming/ghc", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules", O_RDONLY|O_CLOEXEC) = 3
open("inplace/bin/ghc-stage2", O_RDONLY|O_LARGEFILE) = 3
execve("/home/shana/programming/ghc/inplace/lib/bin/ghc-stage2", ["/home/shana/programming/ghc/inpl"..., "-B/home/shana/programming/ghc/in"..., "--interactive"], [/* 77 vars */]) = 0
readlink("/proc/self/exe", "/home/shana/programming/ghc/inpl"..., 4096) = 54
access("/etc/ld-nix.so.preload", R_OK)  = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
open("/run/opengl-driver/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/run/opengl-driver-32/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../haskeline-0.7.1.2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../terminfo-0.4.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-7.9.20140510", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../transformers-0.4.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../template-haskell-2.10.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hpc-0.6.0.1", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../hoopl-3.10.0.1", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bin-package-db-0.0.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../binary-0.7.1.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../Cabal-1.20.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../process-1.2.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../pretty-1.1.1.1", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../directory-1.2.1.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../unix-2.7.0.1", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../time-1.4.2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../old-locale-1.0.0.6", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../filepath-1.3.0.2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../containers-0.5.5.1", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../bytestring-0.10.4.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../deepseq-1.3.0.2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../array-0.5.0.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../base-4.7.1.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../integer-gmp-0.5.1.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../ghc-prim-0.3.1.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/home/shana/programming/ghc/inplace/lib/bin/../rts-1.0", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/wjdpcb8ffiiq74iyamdrn15kafnskhb0-ghcDev-7.9.20140510/lib/ghc-7.9.20140510", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/tls", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/i686", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/sse2/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/sse2", 0xbfb696c0) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libncursesw.so.5", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/librt.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfb696a0) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libutil.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libgmp.so.10", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libgmp.so.10", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHShaskeline-0.7.1.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSterminfo-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSterminfo-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSghc-7.9.20140510-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSghc-7.9.20140510-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSghc-7.9.20140510-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHStransformers-0.4.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHStemplate-haskell-2.10.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHShpc-0.6.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHShoopl-3.10.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbin-package-db-0.0.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSbinary-0.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSCabal-1.20.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSprocess-1.2.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSpretty-1.1.1.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHScontainers-0.5.5.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSdirectory-1.2.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSunix-2.7.0.1-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHStime-1.4.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSold-locale-1.0.0.6-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSfilepath-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSbytestring-0.10.4.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSdeepseq-1.3.0.2-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSarray-0.5.0.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSbase-4.7.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libHSrts_thr-ghc7.9.20140510.so", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libffi.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/qnkyas42nf0knps3va30y29y3zvmgy2v-gmp-5.1.3/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/3v2029bmc8ay73sa9yn4yrgil5jf8l0c-ncurses-5.9/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/compiler/stage2/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/home/shana/programming/ghc/rts/dist/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/run/opengl-driver-32/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/sse2", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/sse2", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/sse2", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/sse2/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/sse2", 0xbfb68f40) = -1 ENOENT (No such file or directory)
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
Process 10677 attached
Process 10678 attached
[pid 10676] open("/home/shana/programming/ghc/inplace/lib/settings", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE) = 10
[pid 10676] open("/home/shana/programming/ghc/inplace/lib/platformConstants", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE) = 11
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
Process 10679 attached
[pid 10679] open("/sys/devices/system/cpu/online", O_RDONLY|O_CLOEXEC) = 10
GHCi, version 7.9.20140510: http://www.haskell.org/ghc/  :? for help
[pid 10676] stat64("/home/shana/.ghc/i386-linux-7.9.20140510/package.conf.d", 0xb2b04de0) = -1 ENOENT (No such file or directory)
[pid 10676] stat64("/home/shana/programming/ghc/inplace/lib/package.conf.d", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10676] open("/home/shana/programming/ghc/inplace/lib/package.conf.d/package.cache", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE) = 10
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules", O_RDONLY|O_CLOEXEC) = 10
[pid 10676] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libHSghc-prim-0.3.1.0-ghc7.9.20140510.so", {st_mode=S_IFREG|0755, st_size=657675, ...}) = 0
Loading package ghc-prim ... linking ... done.
[pid 10676] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libHSinteger-gmp-0.5.1.0-ghc7.9.20140510.so", {st_mode=S_IFREG|0755, st_size=142918, ...}) = 0
[pid 10676] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.so", 0xb2b14f70) = -1 ENOENT (No such file or directory)
[pid 10676] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.a", 0xb2b4c1b0) = -1 ENOENT (No such file or directory)
Process 10680 attached
[pid 10680] execve("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/gcc", ["/nix/store/7q6fc4g701rc1lr7v9vxk"..., "-U__i686", "-fno-stack-protector", "-DTABLES_NEXT_TO_CODE", "-L/home/shana/programming/ghc/li"..., "--print-file-name", "libgmp.so"], [/* 77 vars */]) = 0
[pid 10680] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10680] open("/run/opengl-driver/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10680] open("/run/opengl-driver/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10680] open("/run/opengl-driver-32/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10680] open("/run/opengl-driver-32/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfa22d90) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
[pid 10680] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10680] open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 3
[pid 10680] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10680] open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10680] stat64("/home/shana/programming/ghc", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules.cache", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10680] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/gconv/gconv-modules", O_RDONLY|O_CLOEXEC) = 3
[pid 10680] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/gcc", O_RDONLY|O_LARGEFILE) = 3
[pid 10680] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/add-flags.sh", O_RDONLY|O_LARGEFILE) = 3
[pid 10680] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/libc-cflags", {st_mode=S_IFREG|0444, st_size=227, ...}) = 0
Process 10681 attached
[pid 10681] stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10681] stat64("/nix/store/3kdpbi3yjc8jj3x9yjxxbngklpxlccdv-kde-workspace-4.11.6/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/home/shana/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/var/setuid-wrappers/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/home/shana/.nix-profile/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/home/shana/.nix-profile/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/home/shana/.nix-profile/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/nix/var/nix/profiles/default/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/nix/var/nix/profiles/default/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/nix/var/nix/profiles/default/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10681] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10681] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10681] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10681] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10681] access("/run/current-system/sw/bin/cat", R_OK) = 0
[pid 10681] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10681] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10681] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10681] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10681] access("/run/current-system/sw/bin/cat", R_OK) = 0
Process 10682 attached
[pid 10682] execve("/run/current-system/sw/bin/cat", ["cat", "/nix/store/7q6fc4g701rc1lr7v9vxk"...], [/* 79 vars */]) = 0
[pid 10682] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686",  <unfinished ...>
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10682] <... stat64 resumed> 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10682] open("/run/opengl-driver/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10682] open("/run/opengl-driver/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10682] open("/run/opengl-driver-32/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver-32/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver-32/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10682] open("/run/opengl-driver-32/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver-32/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver-32/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10682] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfc8e040) = -1 ENOENT (No such file or directory)
[pid 10682] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10682] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10682] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/libc-cflags", O_RDONLY|O_LARGEFILE) = 3
[pid 10682] +++ exited with 0 +++
[pid 10681] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10682, si_status=0, si_utime=0, si_stime=0} ---
[pid 10681] +++ exited with 0 +++
[pid 10680] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10681, si_status=0, si_utime=0, si_stime=0} ---
[pid 10680] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/gcc-cflags", {st_mode=S_IFREG|0444, st_size=1, ...}) = 0
Process 10683 attached
[pid 10683] stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10683] stat64("/nix/store/3kdpbi3yjc8jj3x9yjxxbngklpxlccdv-kde-workspace-4.11.6/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/home/shana/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/var/setuid-wrappers/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/home/shana/.nix-profile/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/home/shana/.nix-profile/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/home/shana/.nix-profile/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/nix/var/nix/profiles/default/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/nix/var/nix/profiles/default/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/nix/var/nix/profiles/default/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10683] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10683] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10683] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10683] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10683] access("/run/current-system/sw/bin/cat", R_OK) = 0
[pid 10683] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10683] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10683] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10683] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10683] access("/run/current-system/sw/bin/cat", R_OK) = 0
Process 10684 attached
[pid 10684] execve("/run/current-system/sw/bin/cat", ["cat", "/nix/store/7q6fc4g701rc1lr7v9vxk"...], [/* 79 vars */]) = 0
[pid 10684] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686",  <unfinished ...>
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10684] <... stat64 resumed> 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10684] open("/run/opengl-driver/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10684] open("/run/opengl-driver/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10684] open("/run/opengl-driver-32/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver-32/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver-32/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10684] open("/run/opengl-driver-32/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver-32/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver-32/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10684] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfa97c60) = -1 ENOENT (No such file or directory)
[pid 10684] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10684] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10684] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/gcc-cflags", O_RDONLY|O_LARGEFILE) = 3
[pid 10684] +++ exited with 0 +++
[pid 10683] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10684, si_status=0, si_utime=0, si_stime=0} ---
[pid 10683] +++ exited with 0 +++
[pid 10680] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10683, si_status=0, si_utime=0, si_stime=0} ---
[pid 10680] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/gnat-cflags", 0xbfa22b40) = -1 ENOENT (No such file or directory)
[pid 10680] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/libc-ldflags", {st_mode=S_IFREG|0444, st_size=61, ...}) = 0
Process 10685 attached
[pid 10685] stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10685] stat64("/nix/store/3kdpbi3yjc8jj3x9yjxxbngklpxlccdv-kde-workspace-4.11.6/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/home/shana/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/var/setuid-wrappers/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/home/shana/.nix-profile/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/home/shana/.nix-profile/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/home/shana/.nix-profile/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/nix/var/nix/profiles/default/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/nix/var/nix/profiles/default/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/nix/var/nix/profiles/default/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10685] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10685] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10685] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10685] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10685] access("/run/current-system/sw/bin/cat", R_OK) = 0
[pid 10685] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10685] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10685] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10685] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10685] access("/run/current-system/sw/bin/cat", R_OK) = 0
Process 10686 attached
[pid 10686] execve("/run/current-system/sw/bin/cat", ["cat", "/nix/store/7q6fc4g701rc1lr7v9vxk"...], [/* 79 vars */]) = 0
[pid 10686] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10686] open("/run/opengl-driver/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10686] open("/run/opengl-driver/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10686] open("/run/opengl-driver-32/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver-32/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver-32/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10686] open("/run/opengl-driver-32/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver-32/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver-32/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10686] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfb1c2d0) = -1 ENOENT (No such file or directory)
[pid 10686] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10686] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10686] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/libc-ldflags", O_RDONLY|O_LARGEFILE) = 3
[pid 10686] +++ exited with 0 +++
[pid 10685] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10686, si_status=0, si_utime=0, si_stime=0} ---
[pid 10685] +++ exited with 0 +++
[pid 10680] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10685, si_status=0, si_utime=0, si_stime=0} ---
[pid 10680] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/gcc-ldflags", {st_mode=S_IFREG|0444, st_size=61, ...}) = 0
Process 10687 attached
[pid 10687] stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10687] stat64("/nix/store/3kdpbi3yjc8jj3x9yjxxbngklpxlccdv-kde-workspace-4.11.6/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/home/shana/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/var/setuid-wrappers/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/home/shana/.nix-profile/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/home/shana/.nix-profile/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/home/shana/.nix-profile/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/nix/var/nix/profiles/default/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/nix/var/nix/profiles/default/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/nix/var/nix/profiles/default/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10687] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10687] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10687] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10687] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10687] access("/run/current-system/sw/bin/cat", R_OK) = 0
[pid 10687] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10687] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10687] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10687] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10687] access("/run/current-system/sw/bin/cat", R_OK) = 0
Process 10688 attached
[pid 10688] execve("/run/current-system/sw/bin/cat", ["cat", "/nix/store/7q6fc4g701rc1lr7v9vxk"...], [/* 80 vars */]) = 0
[pid 10688] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC <unfinished ...>
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10688] <... open resumed> )        = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10688] open("/run/opengl-driver/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10688] open("/run/opengl-driver/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10688] open("/run/opengl-driver-32/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver-32/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver-32/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10688] open("/run/opengl-driver-32/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver-32/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver-32/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10688] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfe7cfe0) = -1 ENOENT (No such file or directory)
[pid 10688] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10688] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10688] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/gcc-ldflags", O_RDONLY|O_LARGEFILE) = 3
[pid 10688] +++ exited with 0 +++
[pid 10687] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10688, si_status=0, si_utime=0, si_stime=0} ---
[pid 10687] +++ exited with 0 +++
[pid 10680] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10687, si_status=0, si_utime=0, si_stime=0} ---
[pid 10680] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/libc-ldflags-before", {st_mode=S_IFREG|0444, st_size=89, ...}) = 0
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
Process 10689 attached
[pid 10689] stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10689] stat64("/nix/store/3kdpbi3yjc8jj3x9yjxxbngklpxlccdv-kde-workspace-4.11.6/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/home/shana/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/var/setuid-wrappers/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/home/shana/.nix-profile/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/home/shana/.nix-profile/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/home/shana/.nix-profile/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/nix/var/nix/profiles/default/bin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/nix/var/nix/profiles/default/sbin/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/nix/var/nix/profiles/default/lib/kde4/libexec/cat", 0xbfa22660) = -1 ENOENT (No such file or directory)
[pid 10689] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10689] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10689] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10689] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10689] access("/run/current-system/sw/bin/cat", R_OK) = 0
[pid 10689] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10689] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10689] access("/run/current-system/sw/bin/cat", X_OK) = 0
[pid 10689] stat64("/run/current-system/sw/bin/cat", {st_mode=S_IFREG|0555, st_size=52784, ...}) = 0
[pid 10689] access("/run/current-system/sw/bin/cat", R_OK) = 0
Process 10690 attached
[pid 10690] execve("/run/current-system/sw/bin/cat", ["cat", "/nix/store/7q6fc4g701rc1lr7v9vxk"...], [/* 80 vars */] <unfinished ...>
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10690] <... execve resumed> )      = 0
[pid 10690] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC <unfinished ...>
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10690] <... open resumed> )        = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10690] open("/run/opengl-driver/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10690] open("/run/opengl-driver/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10690] open("/run/opengl-driver-32/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver-32/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver-32/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10690] open("/run/opengl-driver-32/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver-32/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver-32/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10690] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfdba8c0) = -1 ENOENT (No such file or directory)
[pid 10690] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10690] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10690] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/libc-ldflags-before", O_RDONLY|O_LARGEFILE) = 3
[pid 10690] +++ exited with 0 +++
[pid 10689] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10690, si_status=0, si_utime=0, si_stime=0} ---
[pid 10689] +++ exited with 0 +++
[pid 10680] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10689, si_status=0, si_utime=0, si_stime=0} ---
[pid 10680] open("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/nix-support/utils.sh", O_RDONLY|O_LARGEFILE) = 3
[pid 10680] openat(AT_FDCWD, "/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
[pid 10680] openat(AT_FDCWD, "/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
[pid 10680] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10680] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/include-fixed", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
Process 10691 attached
[pid 10691] execve("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/bin/gcc", ["/nix/store/n5hl6lpm87mxf4qd8f2zq"..., "-Wl,-dynamic-linker", "-Wl,/nix/store/4v0a2fncxsk2f57ji"..., "-U__i686", "-fno-stack-protector", "-DTABLES_NEXT_TO_CODE", "-L/home/shana/programming/ghc/li"..., "--print-file-name", "libgmp.so", "-B/nix/store/4v0a2fncxsk2f57jixq"..., "-idirafter", "/nix/store/4v0a2fncxsk2f57jixq7i"..., "-idirafter", "/nix/store/n5hl6lpm87mxf4qd8f2zq"..., "-B/nix/store/7q6fc4g701rc1lr7v9v"..., "-L/nix/store/4v0a2fncxsk2f57jixq"..., ...], [/* 83 vars */]) = 0
[pid 10691] access("/etc/ld-nix.so.preload", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/haskeline/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/terminfo/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/compiler/stage2/build", {st_mode=S_IFDIR|0755, st_size=49152, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/transformers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hpc/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/hoopl/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/binary/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/process/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/pretty/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/directory/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/unix/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/time/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/old-locale/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/filepath/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/containers/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/bytestring/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/deepseq/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/array/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/base/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/home/shana/programming/ghc/rts/dist/build", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
[pid 10691] open("/run/opengl-driver/lib/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] open("/run/opengl-driver/lib/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] open("/run/opengl-driver-32/lib/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/tls", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] open("/run/opengl-driver-32/lib/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/run/opengl-driver-32/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/tls", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/i686", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/sse2/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/sse2", 0xbfccec20) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/tls/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libgcc_s.so.1", O_RDONLY|O_CLOEXEC) = 3
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] --- SIGVTALRM {si_signo=SIGVTALRM, si_code=SI_TIMER, si_pid=0, si_uid=0, si_value=0} ---
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/tls/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10691] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/compiler/stage2/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/home/shana/programming/ghc/rts/dist/build/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/tls/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/tls/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/run/opengl-driver-32/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
[pid 10691] open("/run/current-system/sw/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
[pid 10691] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/share/locale/en_US.UTF-8/LC_MESSAGES/gcc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/share/locale/en_US.utf8/LC_MESSAGES/gcc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/share/locale/en_US/LC_MESSAGES/gcc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/share/locale/en.UTF-8/LC_MESSAGES/gcc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/share/locale/en.utf8/LC_MESSAGES/gcc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10691] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/share/locale/en/LC_MESSAGES/gcc.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
[pid 10691] lstat64("/nix", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] lstat64("/nix/store", {st_mode=S_IFDIR|S_ISVTX|0775, st_size=2080768, ...}) = 0
[pid 10691] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/bin", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/bin/gcc", {st_mode=S_IFREG|0555, st_size=601600, ...}) = 0
[pid 10691] lstat64("/nix", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
[pid 10691] lstat64("/nix/store", {st_mode=S_IFDIR|S_ISVTX|0775, st_size=2080768, ...}) = 0
[pid 10691] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/bin", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
[pid 10691] lstat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/bin/gcc", {st_mode=S_IFREG|0555, st_size=601600, ...}) = 0
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/", X_OK) = 0
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/", X_OK) = 0
[pid 10691] access("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686-pc-linux-gnu/4.8.2/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/i686-pc-linux-gnu/4.8.2/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/../../../../i686-pc-linux-gnu/lib/i686-pc-linux-gnu/4.8.2/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/../../../../i686-pc-linux-gnu/lib/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/specs", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/", X_OK) = 0
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686-pc-linux-gnu/4.8.2/lto-wrapper", 0xbfccf040) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/lto-wrapper", 0xbfccf040) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/i686-pc-linux-gnu/4.8.2/lto-wrapper", 0xbfccf040) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/lto-wrapper", 0xbfccf040) = -1 ENOENT (No such file or directory)
[pid 10691] stat64("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/libexec/gcc/i686-pc-linux-gnu/4.8.2/lto-wrapper", {st_mode=S_IFREG|0555, st_size=477296, ...}) = 0
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/libexec/gcc/i686-pc-linux-gnu/4.8.2/lto-wrapper", X_OK) = 0
[pid 10691] access("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/7q6fc4g701rc1lr7v9vxkwij1v8lv3ji-gcc-wrapper-4.8.2/bin/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/../../../../i686-pc-linux-gnu/lib/i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/../../../../i686-pc-linux-gnu/lib/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/../../../i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/gcc/i686-pc-linux-gnu/4.8.2/../../../libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/lib/i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/lib/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/usr/lib/i686-pc-linux-gnu/4.8.2/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] access("/usr/lib/libgmp.so", R_OK) = -1 ENOENT (No such file or directory)
[pid 10691] +++ exited with 0 +++
[pid 10680] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10691, si_status=0, si_utime=0, si_stime=0} ---
[pid 10680] +++ exited with 0 +++
[pid 10678] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10680, si_status=0, si_utime=0, si_stime=0} ---
Loading package integer-gmp ... [pid 10676] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/compiler/stage2/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/rts/dist/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver/lib/tls/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver-32/lib/tls/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver-32/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/rts/dist/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
<command line>: can't load .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such file or directory)
[pid 10678] +++ exited with 0 +++
[pid 10677] +++ exited with 0 +++
[pid 10679] +++ exited with 0 +++
+++ exited with 1 +++

From gergely at risko.hu  Sun May 11 22:41:00 2014
From: gergely at risko.hu (Gergely Risko)
Date: Mon, 12 May 2014 00:41:00 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such
 file or directory)
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FC8C0.20005@fuuzetsu.co.uk>
 <878uq815tn.fsf@gergely.risko.hu> <536FD2B5.1090203@fuuzetsu.co.uk>
Message-ID: <87wqdsym4j.fsf@gergely.risko.hu>

On Sun, 11 May 2014 21:42:45 +0200, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> writes:

> Are there any downsides to doing this except slightly bigger binary size?

There are license issues if you want to distribute the resulting stuff.
Have to ask your lawyers about lgpl + gmp + shipping binary only stuff.
On the technical side, there are no other downsides.

> Sorry, you're correct, I did not pass interactive. Find attached the
> strace with --interactive.
>
> [...]
>
> Actually, I'm doing this already:
> https://github.com/Fuuzetsu/nix-project-defaults/blob/master/ghc/default.nix

At the end of your strace, I see this:
Loading package integer-gmp ... [pid 10676] open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/compiler/stage2/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/rts/dist/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver/lib/tls/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver-32/lib/tls/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/run/opengl-driver-32/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/home/shana/programming/ghc/rts/dist/build/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid 10676] open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
<command line>: can't load .so/.DLL for: libgmp.so (libgmp.so: cannot open shared object file: No such file or directory)

So you can see that it tries to read libgmp from a lot of places, but
not from the one you specified in build.mk, so this seems to be a build
system bug.

The last commit in GHC that I tried and succeeded to compile 2 weeks ago
with a very similar setup as yours was this:
12332f1add3eb9615a62abb36898819b2e67e865

Can you please try that so we can rule on whether there was a change
very recently that broke this.

> I am even running 'patchPhase && configurePhase && buildPhase' which
> should technically be exactly what nix does with the package in nixpkgs.
> By the way, the official nix package for HEAD isn't quite HEAD but
> instead a snapshot of somewhere near HEAD and in fact I'm the person
> that opened an issue and a PR to get that updated. The fact that it
> builds that but doesn't build when I'm in the source tree makes me
> wonder what's different.

I see.  I'm flying out in 10 hours for vacation, so won't have time to
reproduce your issue and look into this more deeply.  If you figure out
what's happening, please send me a summary.

Maybe you should move this thread to the gmane.linux.distributions.nixos
mailing list from here, because I guess Peter Simons and co can help you
more with this, than GHC devs.

If I find the bandwidth during travels, I will try to keep an eye on this.

Gergely


From fuuzetsu at fuuzetsu.co.uk  Mon May 12 07:51:57 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Mon, 12 May 2014 09:51:57 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
In-Reply-To: <536FD2B5.1090203@fuuzetsu.co.uk>
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FC8C0.20005@fuuzetsu.co.uk>
 <878uq815tn.fsf@gergely.risko.hu> <536FD2B5.1090203@fuuzetsu.co.uk>
Message-ID: <53707D9D.7070505@fuuzetsu.co.uk>

On 05/12/2014 12:41 AM, Gergely Risko wrote:> The following message is a
courtesy copy of an article
> that has been posted to gmane.comp.lang.haskell.ghc.devel as well.
>
> On Sun, 11 May 2014 21:42:45 +0200, Mateusz Kowalczyk
<fuuzetsu at fuuzetsu.co.uk> writes:
>
>> Are there any downsides to doing this except slightly bigger binary size?
>
> There are license issues if you want to distribute the resulting stuff.
> Have to ask your lawyers about lgpl + gmp + shipping binary only stuff.
> On the technical side, there are no other downsides.
>
>> Sorry, you're correct, I did not pass interactive. Find attached the
>> strace with --interactive.
>>
>> [...]
>>
>> Actually, I'm doing this already:
>>
https://github.com/Fuuzetsu/nix-project-defaults/blob/master/ghc/default.nix
>
> At the end of your strace, I see this:
> Loading package integer-gmp ... [pid 10676]
open("/home/shana/programming/ghc/libraries/haskeline/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/terminfo/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/compiler/stage2/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/transformers/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/template-haskell/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/hpc/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/hoopl/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/bin-package-db/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/binary/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/Cabal/Cabal/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/process/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/pretty/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/directory/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/unix/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/time/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/old-locale/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/filepath/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/containers/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/bytestring/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/deepseq/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/array/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/base/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/integer-gmp/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/libraries/ghc-prim/dist-install/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/rts/dist/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676] open("/run/opengl-driver/lib/tls/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676] open("/run/opengl-driver/lib/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676] open("/run/opengl-driver-32/lib/tls/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676] open("/run/opengl-driver-32/lib/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/home/shana/programming/ghc/rts/dist/build/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/nix/store/n5hl6lpm87mxf4qd8f2zq423al1gwdj9-gcc-4.8.2/lib/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/etc/ld.so.cache",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> [pid 10676]
open("/nix/store/4v0a2fncxsk2f57jixq7i59k6hdl34fx-glibc-2.19/lib/libgmp.so",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
> <command line>: can't load .so/.DLL for: libgmp.so (libgmp.so: cannot
open shared object file: No such file or directory)
>
> So you can see that it tries to read libgmp from a lot of places, but
> not from the one you specified in build.mk, so this seems to be a build
> system bug.
>
> The last commit in GHC that I tried and succeeded to compile 2 weeks ago
> with a very similar setup as yours was this:
> 12332f1add3eb9615a62abb36898819b2e67e865
>
> Can you please try that so we can rule on whether there was a change
> very recently that broke this.
>
>> I am even running 'patchPhase && configurePhase && buildPhase' which
>> should technically be exactly what nix does with the package in nixpkgs.
>> By the way, the official nix package for HEAD isn't quite HEAD but
>> instead a snapshot of somewhere near HEAD and in fact I'm the person
>> that opened an issue and a PR to get that updated. The fact that it
>> builds that but doesn't build when I'm in the source tree makes me
>> wonder what's different.
>
> I see.  I'm flying out in 10 hours for vacation, so won't have time to
> reproduce your issue and look into this more deeply.  If you figure out
> what's happening, please send me a summary.

Enjoy your vacation.

> Maybe you should move this thread to the gmane.linux.distributions.nixos
> mailing list from here, because I guess Peter Simons and co can help you
> more with this, than GHC devs.

Perhaps I should. I have tried with --with-intree-gmp and
DYNAMIC_BY_DEFAULT=OFF and they both fail at the same time. Next stop is
to try to build from some snapshots to see whether the  problem is recent.

> If I find the bandwidth during travels, I will try to keep an eye on this.
>
> Gergely
>


-- 
Mateusz K.

From simonpj at microsoft.com  Mon May 12 10:49:25 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Mon, 12 May 2014 10:49:25 +0000
Subject: Why is an irrefutable pattern desugared to a 'cast', while an
 incomplete pattern is not?
In-Reply-To: <B7D8B15B-BD75-4196-9FB2-AFF9BCF6125D@gmail.com>
References: <B7D8B15B-BD75-4196-9FB2-AFF9BCF6125D@gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C864CC8@DB3PRD3001MB020.064d.mgd.msft.net>

Excellent point. I'll fix this.  https://ghc.haskell.org/trac/ghc/ticket/9098

Thanks

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of
| Christiaan Baaij
| Sent: 09 May 2014 15:29
| To: ghc-devs at haskell.org
| Subject: Why is an irrefutable pattern desugared to a 'cast', while an
| incomplete pattern is not?
| 
| Dear list,
| 
| When I ask for the desugaring of:
| > module PatError where
| >
| > paterror :: Maybe Int -> Int
| > paterror (Just i) = i
| 
| I get the following:
| > PatError.paterror =
| >   \ (ds_dIS :: Data.Maybe.Maybe GHC.Types.Int) ->
| >     break<1>()
| >     case ds_dIS of _ [Occ=Dead] {
| >       __DEFAULT ->
| >         (\ _ [Occ=Dead, OS=OneShot] ->
| >            Control.Exception.Base.patError
| >              @ GHC.Types.Int "PatError.hs:4:1-21|function paterror"#)
| >           GHC.Prim.void#;
| >       Data.Maybe.Just i_aqG -> break<0>(i_aqG) i_aqG
| >     }
| 
| Where 'Control.Exception.Base.patError' is applied to 'Int'.
| 
| However, when I compile the almost identical code with an irrefutable
| pattern:
| > module PatError2 where
| >
| > patError :: Maybe Int -> Int
| > patError ~(Just i) = i
| 
| I get the following core:
| > PatError2.paterror =
| >   \ (ds_dIT :: Data.Maybe.Maybe GHC.Types.Int) ->
| >     break<1>()
| >     let {
| >       i_aqG :: GHC.Types.Int
| >       [LclId, Str=DmdType]
| >       i_aqG =
| >         case ds_dIT of _ [Occ=Dead] {
| >           __DEFAULT ->
| >             (\ _ [Occ=Dead, OS=OneShot] ->
| >                (Control.Exception.Base.irrefutPatError
| >                   @ () "PatError2.hs:4:1-22|(Data.Maybe.Just i)"#)
| >                `cast` (UnivCo representational () GHC.Types.Int
| >                        :: () ~# GHC.Types.Int))
| >               GHC.Prim.void#;
| >           Data.Maybe.Just i_aqG -> i_aqG
| >         } } in
| >     break<0>(i_aqG) i_aqG
| 
| Where 'Control.Exception.Base.patError' is first applied to '()' after
| which it is casted to 'GHC.Types.Int'.
| Out of the [note] for the 'UnivCo' coercion:
| > The UnivCo ("universal coercion") serves two rather separate functions:
| >  - the implementation for unsafeCoerce#
| >  - placeholder for phantom parameters in a TyConAppCo
| 
| It seems to be used in the 'unsafeCoerce#' role here.
| My question is: why can't the irrefutable pattern be translated to
| 'Control.Exception.Base.irrefutPatError' applied to 'Int'?
| Instead of using this 'cast'?
| I find the cast-less version much more readable.
| 
| Greetings,
| 
| Christiaan
| 
| _______________________________________________
| ghc-devs mailing list
| ghc-devs at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-devs

From austin at well-typed.com  Mon May 12 12:53:28 2014
From: austin at well-typed.com (Austin Seipp)
Date: Mon, 12 May 2014 07:53:28 -0500
Subject: Question about Roles and the AMP work
Message-ID: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>

Hello all,

While picking the AMP patch back up, it is almost ready to go, but I
got quite a puzzling error when attempting to build 'haskeline' with
the AMP changes. I don't seem to remember encountering this error
before - but maybe my mind is hazy.

The error in question is this:

https://gist.github.com/thoughtpolice/6df4c70d8a8fb711b282

The TL;DR is that the move of `join` into base has caused a problem
here. The error really speaks for itself: GND tries to derive an
instance of `join` for DumbTerm, which would have the type

  join :: DumbTerm m (DumbTerm m a) -> DumbTerm m a

and be equivalent to join for StateT. But this can't hold: DumbTerm
should unwrap directly to StateT (by newtype equality) and thus the
third parameter to StateT in this case is `DumbTerm m a` if you expand
the types - but because this argument is Nominal, it cannot unify with
'PosixT m', which is the actual definition of DumbTerm in the first
place!

With a little thought, this error actually seems reasonable. But it
puzzles me as to what we should do now. One thing we could do is just
write the instances manually, of course. But that's a bit annoying.

Another alternative (and also unfortunate) change is to leave `join`
out of Monad, in which case the GND mechanism is oblivious to it and
does not need to worry about deriving these cases.

I am not sure how many packages depend on using GND to derive monads
like StateT with Nominal arguments, but I imagine it is not totally
insignificant and will essentially hurt a lot of people who may use
it.

Richard, I'm particularly interested to hear what you think. This one
sort of snuck up!

(NB: despite this, the AMP work is very close to landing in HEAD, at
which point we can begin cleaning stuff up faster.)

-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/

From johan.tibell at gmail.com  Mon May 12 13:18:50 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Mon, 12 May 2014 15:18:50 +0200
Subject: Adding atomic primops
In-Reply-To: <1399199455-sup-5590@sabre>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
Message-ID: <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>

Hi all,

I'm not sure how to continue from here. The current backend story feels a
bit shaky. Do we think we accurately need to reflect the memory model in
Cmm before we should venture into this area at all, or are we comfortable
relying on the current implementation of CallishMachOps with the knowledge
that if we ever want to move loads/stores past those calls, we need to
address the memory model issue then?

I'm less concerned about actually picking a memory model. I think we should
borrow what C/C++ did and just pick a couple (maybe even just 2) of the
consistency levels on their "ladder" and support those. We can always add
more relaxed ordering guarantees later.
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From austin at well-typed.com  Mon May 12 14:00:43 2014
From: austin at well-typed.com (Austin Seipp)
Date: Mon, 12 May 2014 09:00:43 -0500
Subject: Status updates
Message-ID: <CAEs96n1QpXr5L8MDMre_7rJ8i-OZYjSGv=wQvPt8JFbr7TyBMg@mail.gmail.com>

Hello all,

It has been another slow week here, and there wasn't a lot I touched
in the tree this week. The primary highlights:

 * The AMP battle rages on! It turns out the addition of `join` to
`Monad` has had some subtle implications for GND/Roles. See here for
more: https://www.haskell.org/pipermail/ghc-devs/2014-May/004964.html

 * Simon is still reviewing the ORF work, as far as I know. Hopefully
it will Land Real Soon Now.

 * Patches! Lots of them! I'm reviewing and merging several of them
right now. In particular, all the ones slated for 7.8.3 are up for
grabs[1] by me right now, but I do need to double-check some of them
e.g. on Windows, to make sure nothing breaks.

 * Many branches have been deleted. Something like 20-30 of them, I
think. Yay! Sorry for the spam to the commits list too, but it was a
necessary evil.

 * I'm working away at some of the bugs. #7602 is building right now,
with some nice improvements. That will go into the 7.8.3 branch, so OS
X users will get a big performance gain, yay!

 * Another bug: #8736. I had a patch for this, but this one is tricky
to fix because when we load object files, we don't actually know if
they're static or dynamic. This is encoded in the interface file, but
there are some tricky semantics about what to do in some cases of
(legitimately) needing to re-read interface files that are a bit
subtle. I'll be trying to revive my patch for this today.

Other than that, there really hasn't been a lot to mention. Please, do
get down on reviewing some bugs and helping fix them![1] I'm more than
willing to help in any way I can.

I'd also like some feedback: what do people think about the current
list? Are there any of you readers who see one *you* think is truly
critical? Maybe we can get some input to help narrow the scope if
needed.

Thanks!

[1] https://ghc.haskell.org/trac/ghc/query?status=infoneeded&status=merge&status=new&status=patch&group=status&milestone=7.8.3

-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/

From ekmett at gmail.com  Mon May 12 14:01:22 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Tue, 13 May 2014 00:01:22 +1000
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
Message-ID: <CAJumaK-Y=AKG=B+h8GeO3MDyHkJuj8_D3srugNw7uXoTAH5m+Q@mail.gmail.com>

I'd be pretty comfortable relying on the existing implementation for now as
long as we know it is the sort of thing we should shore up before too long.

Ultimately "Threads Cannot Be Implemented As a
Library"<http://www.cs.nmsu.edu/~scooper/CS574/papers/threads-library.pdf>but
you can fake it for a long time. The user base of such features is
pretty savvy and if we're force to go a bit overboard adding fences
prophylactically it doesn't cost nearly as much today as it did even 2
years ago.

-Edward


On Mon, May 12, 2014 at 11:18 PM, Johan Tibell <johan.tibell at gmail.com>wrote:

> Hi all,
>
> I'm not sure how to continue from here. The current backend story feels a
> bit shaky. Do we think we accurately need to reflect the memory model in
> Cmm before we should venture into this area at all, or are we comfortable
> relying on the current implementation of CallishMachOps with the knowledge
> that if we ever want to move loads/stores past those calls, we need to
> address the memory model issue then?
>
> I'm less concerned about actually picking a memory model. I think we
> should borrow what C/C++ did and just pick a couple (maybe even just 2) of
> the consistency levels on their "ladder" and support those. We can always
> add more relaxed ordering guarantees later.
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From ggreif at gmail.com  Mon May 12 14:12:24 2014
From: ggreif at gmail.com (Gabor Greif)
Date: Mon, 12 May 2014 16:12:24 +0200
Subject: classP recently deleted from TH.Lib
Message-ID: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>

The last two commits from (Apr 9) on

<https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs>

removed a helper to construct applied type class constraints (`classP`).

Some packages (notably `llvm-general-pure`) though, depend on it.

Can we add back something like this:

{{{
classP :: Name -> [Q Type] -> Q Pred
classP cla tys
  = do
      tysl <- sequence tys
      return (foldl' AppT (ConT cla) tysl)
}}}

and export it again? Or is there such a helper with a different name already?

Cheers,

    Gabor

From johan.tibell at gmail.com  Mon May 12 14:35:19 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Mon, 12 May 2014 16:35:19 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
Message-ID: <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>

That would be nice. I had to fix some breakage caused by this in one of
Bryan's libraries.


On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com> wrote:

> The last two commits from (Apr 9) on
>
> <
> https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs
> >
>
> removed a helper to construct applied type class constraints (`classP`).
>
> Some packages (notably `llvm-general-pure`) though, depend on it.
>
> Can we add back something like this:
>
> {{{
> classP :: Name -> [Q Type] -> Q Pred
> classP cla tys
>   = do
>       tysl <- sequence tys
>       return (foldl' AppT (ConT cla) tysl)
> }}}
>
> and export it again? Or is there such a helper with a different name
> already?
>
> Cheers,
>
>     Gabor
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From ggreif at gmail.com  Mon May 12 14:51:25 2014
From: ggreif at gmail.com (Gabor Greif)
Date: Mon, 12 May 2014 16:51:25 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
Message-ID: <CAK-hX0=toTxxZDVRE2J0Smk9V4bmPATva1CdJpMybV=Y3awNVw@mail.gmail.com>

Forgot to explicitly state that this is with 7.9 HEAD.

7.8.2 is delivered with template-haskell 2.9.0.0, which contains the
`classP` helper.

Richard, if you also support my suggestion, I'll go forward and push it.

Cheers,

     Gabor

On 5/12/14, Johan Tibell <johan.tibell at gmail.com> wrote:
> That would be nice. I had to fix some breakage caused by this in one of
> Bryan's libraries.
>
>
> On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com> wrote:
>
>> The last two commits from (Apr 9) on
>>
>> <
>> https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs
>> >
>>
>> removed a helper to construct applied type class constraints (`classP`).
>>
>> Some packages (notably `llvm-general-pure`) though, depend on it.
>>
>> Can we add back something like this:
>>
>> {{{
>> classP :: Name -> [Q Type] -> Q Pred
>> classP cla tys
>>   = do
>>       tysl <- sequence tys
>>       return (foldl' AppT (ConT cla) tysl)
>> }}}
>>
>> and export it again? Or is there such a helper with a different name
>> already?
>>
>> Cheers,
>>
>>     Gabor
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>

From simonpj at microsoft.com  Mon May 12 14:51:25 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Mon, 12 May 2014 14:51:25 +0000
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C865B70@DB3PRD3001MB020.064d.mgd.msft.net>

I suspect it was accidental, but Richard will doubtless say in due course

Simon

From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Johan Tibell
Sent: 12 May 2014 15:35
To: Gabor Greif
Cc: ghc-devs
Subject: Re: classP recently deleted from TH.Lib

That would be nice. I had to fix some breakage caused by this in one of Bryan's libraries.

On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com<mailto:ggreif at gmail.com>> wrote:
The last two commits from (Apr 9) on

<https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs>

removed a helper to construct applied type class constraints (`classP`).

Some packages (notably `llvm-general-pure`) though, depend on it.

Can we add back something like this:

{{{
classP :: Name -> [Q Type] -> Q Pred
classP cla tys
  = do
      tysl <- sequence tys
      return (foldl' AppT (ConT cla) tysl)
}}}

and export it again? Or is there such a helper with a different name already?

Cheers,

    Gabor
_______________________________________________
ghc-devs mailing list
ghc-devs at haskell.org<mailto:ghc-devs at haskell.org>
http://www.haskell.org/mailman/listinfo/ghc-devs

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From eir at cis.upenn.edu  Mon May 12 14:58:52 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Mon, 12 May 2014 10:58:52 -0400
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
Message-ID: <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>

This one was my fault/decision. The TH.Lib functions tend to mirror exactly the constructors in TH.Syntax. We removed the constructors (for good reason -- predicates and types really are the same now), so I thought it best to remove the TH.Lib function, too. In the cases where code had to be updated, would keeping classP in be enough to prevent the breakage?

We could, of course, just leave the functions there with new implementations, but that feels like it could accumulate legacy functions over time.

Here are some ideas for this, and other similar situations, going forward:
1) Don't remove functions from TH.Lib unless absolutely necessary (which should probably never happen).
2) Remove functions from TH.Lib, but support some other package ("th-compat") which fills in the compatibility gap. This package would not be tied in with GHC. It would use CPP to export functions in order to remain compatible with a range of GHC versions. In this example, the package would export a fresh classP in 7.9+ but just re-export TH's in 7.8-.
3) Do what I've done -- keep TH.Lib parallel with TH.Syntax and leave it to users to sort it out as they see fit.

It is worth noting that a change of this sort in TH.Lib corresponds to a breaking change in TH.Syntax. But, perhaps most people rely on Lib and not on Syntax.

I'm happy to follow what the community thinks is best here -- I don't have any vested opinion.

Thanks -- and sorry for the breakage!
Richard

On May 12, 2014, at 10:35 AM, Johan Tibell <johan.tibell at gmail.com> wrote:

> That would be nice. I had to fix some breakage caused by this in one of Bryan's libraries.
> 
> 
> On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com> wrote:
> The last two commits from (Apr 9) on
> 
> <https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs>
> 
> removed a helper to construct applied type class constraints (`classP`).
> 
> Some packages (notably `llvm-general-pure`) though, depend on it.
> 
> Can we add back something like this:
> 
> {{{
> classP :: Name -> [Q Type] -> Q Pred
> classP cla tys
>   = do
>       tysl <- sequence tys
>       return (foldl' AppT (ConT cla) tysl)
> }}}
> 
> and export it again? Or is there such a helper with a different name already?
> 
> Cheers,
> 
>     Gabor
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 

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From simonpj at microsoft.com  Mon May 12 14:59:17 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Mon, 12 May 2014 14:59:17 +0000
Subject: Question about Roles and the AMP work
In-Reply-To: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>
References: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C865BEE@DB3PRD3001MB020.064d.mgd.msft.net>

This looks a bit awkward to me.  Here's a small test case 

class C m where
  ret :: a -> m a
  bind :: m a -> (a -> m b) -> m b
  join :: m (m a) -> m a

newtype T m a = MkT (m a) deriving( C )

This is accepted without the 'join' in the class, but rejected with it.

So *all* uses of GND to do 'deriving( Monad )' will break when 'join' is added to Monad.

And this is because we don't know that 'm' ranges only over things that have representational arguments; type variables always have nominal arguments.  The paper draws attention to this shortcoming, but now it's becoming important.

I can't think of an obvious workaround either, except not putting 'join' in Monad.

Simon



| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Austin
| Seipp
| Sent: 12 May 2014 13:53
| To: ghc-devs at haskell.org
| Subject: Question about Roles and the AMP work
| 
| Hello all,
| 
| While picking the AMP patch back up, it is almost ready to go, but I got
| quite a puzzling error when attempting to build 'haskeline' with the AMP
| changes. I don't seem to remember encountering this error before - but
| maybe my mind is hazy.
| 
| The error in question is this:
| 
| https://gist.github.com/thoughtpolice/6df4c70d8a8fb711b282
| 
| The TL;DR is that the move of `join` into base has caused a problem
| here. The error really speaks for itself: GND tries to derive an
| instance of `join` for DumbTerm, which would have the type
| 
|   join :: DumbTerm m (DumbTerm m a) -> DumbTerm m a
| 
| and be equivalent to join for StateT. But this can't hold: DumbTerm
| should unwrap directly to StateT (by newtype equality) and thus the
| third parameter to StateT in this case is `DumbTerm m a` if you expand
| the types - but because this argument is Nominal, it cannot unify with
| 'PosixT m', which is the actual definition of DumbTerm in the first
| place!
| 
| With a little thought, this error actually seems reasonable. But it
| puzzles me as to what we should do now. One thing we could do is just
| write the instances manually, of course. But that's a bit annoying.
| 
| Another alternative (and also unfortunate) change is to leave `join` out
| of Monad, in which case the GND mechanism is oblivious to it and does
| not need to worry about deriving these cases.
| 
| I am not sure how many packages depend on using GND to derive monads
| like StateT with Nominal arguments, but I imagine it is not totally
| insignificant and will essentially hurt a lot of people who may use it.
| 
| Richard, I'm particularly interested to hear what you think. This one
| sort of snuck up!
| 
| (NB: despite this, the AMP work is very close to landing in HEAD, at
| which point we can begin cleaning stuff up faster.)
| 
| --
| Regards,
| 
| Austin Seipp, Haskell Consultant
| Well-Typed LLP, http://www.well-typed.com/
| _______________________________________________
| ghc-devs mailing list
| ghc-devs at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-devs

From ekmett at gmail.com  Mon May 12 15:28:56 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Tue, 13 May 2014 01:28:56 +1000
Subject: Question about Roles and the AMP work
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF0C865BEE@DB3PRD3001MB020.064d.mgd.msft.net>
References: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C865BEE@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <CAJumaK8TMotWPrrGXw6HbSzexsq0Da5CVe3ky223i_qZ=R8Fig@mail.gmail.com>

As a straw man, if we went to a typeclass-driven 'next arg is
representational' approach then we could possibly recover 'join' here.

e.g.

class Representational f where
  rep :: Coercion f g -> Coercion a b -> Coercion (f a) (g b)

class Representational f => Phantom f where
  phantom :: Coercion f g -> Coercion (f a) (g b)

When we look at for the constraint head Coercible (f a) (g b) we'd then
check for Phantom f and if so look for Coercible f g, or fall back to
Representational
f, and look for Coercible f g and Coercible a b.

Then to derive GND for C m it'd need to check Representational m due to the
type of join needing m's next arg to be representational, find it and move
on.

The set of these instances can be left open like any other typeclass and
users could supply their own for tricky conversions if need be.

If you just wrote the existing role annotations, but let them request
currently impossible roles you could use the desired role to infer the
constraints involved.

e.g.

newtype StateT s m a = StateT { runStateT :: s -> m (a, s) }

should be able to derive something like

instance Representational (StateT s)
instance Representational m => Representational (StateT s m)
instance Phantom m => Phantom (StateT s m)

If we put nominal or representational on the m argument

type role StateT nominal nominal nominal

then we could just elide the instances for anything lower in the nominal ->
representational -> phantom lattice than the named role.

The positional argument scheme isn't perfect, as in the above it'd fail to
let you derive `instance Representational StateT` due to the s occurring
under m, an argument later in the argument list, but it does fix most of
the problems with Coercible and monad transfomers.

There might be some fancier form that can cover all of the use cases, but
I'm not seeing it off hand.

-Edward


On Tue, May 13, 2014 at 12:59 AM, Simon Peyton Jones
<simonpj at microsoft.com>wrote:

> This looks a bit awkward to me.  Here's a small test case
>
> class C m where
>   ret :: a -> m a
>   bind :: m a -> (a -> m b) -> m b
>   join :: m (m a) -> m a
>
> newtype T m a = MkT (m a) deriving( C )
>
> This is accepted without the 'join' in the class, but rejected with it.
>
> So *all* uses of GND to do 'deriving( Monad )' will break when 'join' is
> added to Monad.
>
> And this is because we don't know that 'm' ranges only over things that
> have representational arguments; type variables always have nominal
> arguments.  The paper draws attention to this shortcoming, but now it's
> becoming important.
>
> I can't think of an obvious workaround either, except not putting 'join'
> in Monad.
>
> Simon
>
>
>
> | -----Original Message-----
> | From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Austin
> | Seipp
> | Sent: 12 May 2014 13:53
> | To: ghc-devs at haskell.org
> | Subject: Question about Roles and the AMP work
> |
> | Hello all,
> |
> | While picking the AMP patch back up, it is almost ready to go, but I got
> | quite a puzzling error when attempting to build 'haskeline' with the AMP
> | changes. I don't seem to remember encountering this error before - but
> | maybe my mind is hazy.
> |
> | The error in question is this:
> |
> | https://gist.github.com/thoughtpolice/6df4c70d8a8fb711b282
> |
> | The TL;DR is that the move of `join` into base has caused a problem
> | here. The error really speaks for itself: GND tries to derive an
> | instance of `join` for DumbTerm, which would have the type
> |
> |   join :: DumbTerm m (DumbTerm m a) -> DumbTerm m a
> |
> | and be equivalent to join for StateT. But this can't hold: DumbTerm
> | should unwrap directly to StateT (by newtype equality) and thus the
> | third parameter to StateT in this case is `DumbTerm m a` if you expand
> | the types - but because this argument is Nominal, it cannot unify with
> | 'PosixT m', which is the actual definition of DumbTerm in the first
> | place!
> |
> | With a little thought, this error actually seems reasonable. But it
> | puzzles me as to what we should do now. One thing we could do is just
> | write the instances manually, of course. But that's a bit annoying.
> |
> | Another alternative (and also unfortunate) change is to leave `join` out
> | of Monad, in which case the GND mechanism is oblivious to it and does
> | not need to worry about deriving these cases.
> |
> | I am not sure how many packages depend on using GND to derive monads
> | like StateT with Nominal arguments, but I imagine it is not totally
> | insignificant and will essentially hurt a lot of people who may use it.
> |
> | Richard, I'm particularly interested to hear what you think. This one
> | sort of snuck up!
> |
> | (NB: despite this, the AMP work is very close to landing in HEAD, at
> | which point we can begin cleaning stuff up faster.)
> |
> | --
> | Regards,
> |
> | Austin Seipp, Haskell Consultant
> | Well-Typed LLP, http://www.well-typed.com/
> | _______________________________________________
> | ghc-devs mailing list
> | ghc-devs at haskell.org
> | http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From fuuzetsu at fuuzetsu.co.uk  Mon May 12 15:34:19 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Mon, 12 May 2014 17:34:19 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
In-Reply-To: <53707D9D.7070505@fuuzetsu.co.uk>
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FC8C0.20005@fuuzetsu.co.uk>
 <878uq815tn.fsf@gergely.risko.hu> <536FD2B5.1090203@fuuzetsu.co.uk>
 <53707D9D.7070505@fuuzetsu.co.uk>
Message-ID: <5370E9FB.4030001@fuuzetsu.co.uk>

On 05/12/2014 09:51 AM, Mateusz Kowalczyk wrote:
> On 05/12/2014 12:41 AM, Gergely Risko wrote:> The following message is a
> courtesy copy of an article
>> that has been posted to gmane.comp.lang.haskell.ghc.devel as well.
>>
>> On Sun, 11 May 2014 21:42:45 +0200, Mateusz Kowalczyk
> <fuuzetsu at fuuzetsu.co.uk> writes:
>>
>>> Are there any downsides to doing this except slightly bigger binary size?
>>
>> There are license issues if you want to distribute the resulting stuff.
>> Have to ask your lawyers about lgpl + gmp + shipping binary only stuff.
>> On the technical side, there are no other downsides.
>>
>>> Sorry, you're correct, I did not pass interactive. Find attached the
>>> strace with --interactive.
>>>
>>> [...]
>>>
>>> Actually, I'm doing this already:
>>>
> https://github.com/Fuuzetsu/nix-project-defaults/blob/master/ghc/default.nix
>>
>> At the end of your strace, I see this:
>> Loading package integer-gmp ... [pid 10676]
>> [...]
>>
>> So you can see that it tries to read libgmp from a lot of places, but
>> not from the one you specified in build.mk, so this seems to be a build
>> system bug.
>>
>> The last commit in GHC that I tried and succeeded to compile 2 weeks ago
>> with a very similar setup as yours was this:
>> 12332f1add3eb9615a62abb36898819b2e67e865
>>
>> Can you please try that so we can rule on whether there was a change
>> very recently that broke this.
>>
>>> I am even running 'patchPhase && configurePhase && buildPhase' which
>>> should technically be exactly what nix does with the package in nixpkgs.
>>> By the way, the official nix package for HEAD isn't quite HEAD but
>>> instead a snapshot of somewhere near HEAD and in fact I'm the person
>>> that opened an issue and a PR to get that updated. The fact that it
>>> builds that but doesn't build when I'm in the source tree makes me
>>> wonder what's different.
>>
>> I see.  I'm flying out in 10 hours for vacation, so won't have time to
>> reproduce your issue and look into this more deeply.  If you figure out
>> what's happening, please send me a summary.
> 
> Enjoy your vacation.
> 
>> Maybe you should move this thread to the gmane.linux.distributions.nixos
>> mailing list from here, because I guess Peter Simons and co can help you
>> more with this, than GHC devs.
> 
> Perhaps I should. I have tried with --with-intree-gmp and
> DYNAMIC_BY_DEFAULT=OFF and they both fail at the same time. Next stop is
> to try to build from some snapshots to see whether the  problem is recent.
> 
>> If I find the bandwidth during travels, I will try to keep an eye on this.
>>
>> Gergely
>>
> 
> 

Today I built the snapshots from 20140430[1] and 20140510[2] without a
problem (just had to not build the postscript docs as those failed)
which makes me think there's either something wrong with my tree or
these snapshots do something that stops the problem from coming up.

[1]: http://deb.haskell.org/dailies/2014-04-30/ghc_7.9.20140430.orig.tar.bz2
[2]: http://deb.haskell.org/dailies/2014-05-11/ghc_7.9.20140510.orig.tar.bz2

-- 
Mateusz K.

From benno.fuenfstueck+ghc at gmail.com  Mon May 12 17:46:47 2014
From: benno.fuenfstueck+ghc at gmail.com (=?UTF-8?B?QmVubm8gRsO8bmZzdMO8Y2s=?=)
Date: Mon, 12 May 2014 19:46:47 +0200
Subject: Fwd: Question about Roles and the AMP work
In-Reply-To: <CALpAkBPieSVi4dC93qv0fFnu7U0HoKNBsajzSUnu-xhAyJvm4Q@mail.gmail.com>
References: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF0C865BEE@DB3PRD3001MB020.064d.mgd.msft.net>
 <CAJumaK8TMotWPrrGXw6HbSzexsq0Da5CVe3ky223i_qZ=R8Fig@mail.gmail.com>
 <CALpAkBPieSVi4dC93qv0fFnu7U0HoKNBsajzSUnu-xhAyJvm4Q@mail.gmail.com>
Message-ID: <CALpAkBPPzW=wJhXh0J565g9zUd_KNukKyyHKbzWn_QsFtkxXZg@mail.gmail.com>

I'm not familar with the internals of GHC, but maybe it would be possible
for GHC to just use the default definition for `join` in the case that
deriving fails because of roles? At least if the class to be derived has a
`MINIMAL` pragma, GHC could check if that is still satisfied even without
the method that failed to derive, and use the default definition if that's
the case.


2014-05-12 17:28 GMT+02:00 Edward Kmett <ekmett at gmail.com>:

As a straw man, if we went to a typeclass-driven 'next arg is
> representational' approach then we could possibly recover 'join' here.
>
> e.g.
>
> class Representational f where
>   rep :: Coercion f g -> Coercion a b -> Coercion (f a) (g b)
>
> class Representational f => Phantom f where
>   phantom :: Coercion f g -> Coercion (f a) (g b)
>
> When we look at for the constraint head Coercible (f a) (g b) we'd then
> check for Phantom f and if so look for Coercible f g, or fall back to Representational
> f, and look for Coercible f g and Coercible a b.
>
> Then to derive GND for C m it'd need to check Representational m due to
> the type of join needing m's next arg to be representational, find it and
> move on.
>
> The set of these instances can be left open like any other typeclass and
> users could supply their own for tricky conversions if need be.
>
> If you just wrote the existing role annotations, but let them request
> currently impossible roles you could use the desired role to infer the
> constraints involved.
>
> e.g.
>
> newtype StateT s m a = StateT { runStateT :: s -> m (a, s) }
>
> should be able to derive something like
>
> instance Representational (StateT s)
> instance Representational m => Representational (StateT s m)
> instance Phantom m => Phantom (StateT s m)
>
> If we put nominal or representational on the m argument
>
> type role StateT nominal nominal nominal
>
> then we could just elide the instances for anything lower in the nominal
> -> representational -> phantom lattice than the named role.
>
> The positional argument scheme isn't perfect, as in the above it'd fail to
> let you derive `instance Representational StateT` due to the s occurring
> under m, an argument later in the argument list, but it does fix most of
> the problems with Coercible and monad transfomers.
>
> There might be some fancier form that can cover all of the use cases, but
> I'm not seeing it off hand.
>
> -Edward
>
>
> On Tue, May 13, 2014 at 12:59 AM, Simon Peyton Jones <
> simonpj at microsoft.com> wrote:
>
>> This looks a bit awkward to me.  Here's a small test case
>>
>> class C m where
>>   ret :: a -> m a
>>   bind :: m a -> (a -> m b) -> m b
>>   join :: m (m a) -> m a
>>
>> newtype T m a = MkT (m a) deriving( C )
>>
>> This is accepted without the 'join' in the class, but rejected with it.
>>
>> So *all* uses of GND to do 'deriving( Monad )' will break when 'join' is
>> added to Monad.
>>
>> And this is because we don't know that 'm' ranges only over things that
>> have representational arguments; type variables always have nominal
>> arguments.  The paper draws attention to this shortcoming, but now it's
>> becoming important.
>>
>> I can't think of an obvious workaround either, except not putting 'join'
>> in Monad.
>>
>> Simon
>>
>>
>>
>> | -----Original Message-----
>> | From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of
>> Austin
>> | Seipp
>> | Sent: 12 May 2014 13:53
>> | To: ghc-devs at haskell.org
>> | Subject: Question about Roles and the AMP work
>> |
>> | Hello all,
>> |
>> | While picking the AMP patch back up, it is almost ready to go, but I got
>> | quite a puzzling error when attempting to build 'haskeline' with the AMP
>> | changes. I don't seem to remember encountering this error before - but
>> | maybe my mind is hazy.
>> |
>> | The error in question is this:
>> |
>> | https://gist.github.com/thoughtpolice/6df4c70d8a8fb711b282
>> |
>> | The TL;DR is that the move of `join` into base has caused a problem
>> | here. The error really speaks for itself: GND tries to derive an
>> | instance of `join` for DumbTerm, which would have the type
>> |
>> |   join :: DumbTerm m (DumbTerm m a) -> DumbTerm m a
>> |
>> | and be equivalent to join for StateT. But this can't hold: DumbTerm
>> | should unwrap directly to StateT (by newtype equality) and thus the
>> | third parameter to StateT in this case is `DumbTerm m a` if you expand
>> | the types - but because this argument is Nominal, it cannot unify with
>> | 'PosixT m', which is the actual definition of DumbTerm in the first
>> | place!
>> |
>> | With a little thought, this error actually seems reasonable. But it
>> | puzzles me as to what we should do now. One thing we could do is just
>> | write the instances manually, of course. But that's a bit annoying.
>> |
>> | Another alternative (and also unfortunate) change is to leave `join` out
>> | of Monad, in which case the GND mechanism is oblivious to it and does
>> | not need to worry about deriving these cases.
>> |
>> | I am not sure how many packages depend on using GND to derive monads
>> | like StateT with Nominal arguments, but I imagine it is not totally
>> | insignificant and will essentially hurt a lot of people who may use it.
>> |
>> | Richard, I'm particularly interested to hear what you think. This one
>> | sort of snuck up!
>> |
>> | (NB: despite this, the AMP work is very close to landing in HEAD, at
>> | which point we can begin cleaning stuff up faster.)
>> |
>> | --
>> | Regards,
>> |
>> | Austin Seipp, Haskell Consultant
>> | Well-Typed LLP, http://www.well-typed.com/
>> | _______________________________________________
>> | ghc-devs mailing list
>> | ghc-devs at haskell.org
>> | http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From fuuzetsu at fuuzetsu.co.uk  Mon May 12 20:12:51 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Mon, 12 May 2014 22:12:51 +0200
Subject: Loading package integer-gmp ... <command line>: can't load
 .so/.DLL
 for: libgmp.so (libgmp.so: cannot open shared object file: No such file or
 directory)
In-Reply-To: <5370E9FB.4030001@fuuzetsu.co.uk>
References: <536F88B5.7020602@fuuzetsu.co.uk> <536FC8C0.20005@fuuzetsu.co.uk>
 <878uq815tn.fsf@gergely.risko.hu> <536FD2B5.1090203@fuuzetsu.co.uk>
 <53707D9D.7070505@fuuzetsu.co.uk> <5370E9FB.4030001@fuuzetsu.co.uk>
Message-ID: <53712B43.4000401@fuuzetsu.co.uk>

On 05/12/2014 05:34 PM, Mateusz Kowalczyk wrote:
> On 05/12/2014 09:51 AM, Mateusz Kowalczyk wrote:
>> On 05/12/2014 12:41 AM, Gergely Risko wrote:> The following message is a
>> courtesy copy of an article
>>> that has been posted to gmane.comp.lang.haskell.ghc.devel as well.
>>>
>>> On Sun, 11 May 2014 21:42:45 +0200, Mateusz Kowalczyk
>> <fuuzetsu at fuuzetsu.co.uk> writes:
>>>
>>>> Are there any downsides to doing this except slightly bigger binary size?
>>>
>>> There are license issues if you want to distribute the resulting stuff.
>>> Have to ask your lawyers about lgpl + gmp + shipping binary only stuff.
>>> On the technical side, there are no other downsides.
>>>
>>>> Sorry, you're correct, I did not pass interactive. Find attached the
>>>> strace with --interactive.
>>>>
>>>> [...]
>>>>
>>>> Actually, I'm doing this already:
>>>>
>> https://github.com/Fuuzetsu/nix-project-defaults/blob/master/ghc/default.nix
>>>
>>> At the end of your strace, I see this:
>>> Loading package integer-gmp ... [pid 10676]
>>> [...]
>>>
>>> So you can see that it tries to read libgmp from a lot of places, but
>>> not from the one you specified in build.mk, so this seems to be a build
>>> system bug.
>>>
>>> The last commit in GHC that I tried and succeeded to compile 2 weeks ago
>>> with a very similar setup as yours was this:
>>> 12332f1add3eb9615a62abb36898819b2e67e865
>>>
>>> Can you please try that so we can rule on whether there was a change
>>> very recently that broke this.
>>>
>>>> I am even running 'patchPhase && configurePhase && buildPhase' which
>>>> should technically be exactly what nix does with the package in nixpkgs.
>>>> By the way, the official nix package for HEAD isn't quite HEAD but
>>>> instead a snapshot of somewhere near HEAD and in fact I'm the person
>>>> that opened an issue and a PR to get that updated. The fact that it
>>>> builds that but doesn't build when I'm in the source tree makes me
>>>> wonder what's different.
>>>
>>> I see.  I'm flying out in 10 hours for vacation, so won't have time to
>>> reproduce your issue and look into this more deeply.  If you figure out
>>> what's happening, please send me a summary.
>>
>> Enjoy your vacation.
>>
>>> Maybe you should move this thread to the gmane.linux.distributions.nixos
>>> mailing list from here, because I guess Peter Simons and co can help you
>>> more with this, than GHC devs.
>>
>> Perhaps I should. I have tried with --with-intree-gmp and
>> DYNAMIC_BY_DEFAULT=OFF and they both fail at the same time. Next stop is
>> to try to build from some snapshots to see whether the  problem is recent.
>>
>>> If I find the bandwidth during travels, I will try to keep an eye on this.
>>>
>>> Gergely
>>>
>>
>>
> 
> Today I built the snapshots from 20140430[1] and 20140510[2] without a
> problem (just had to not build the postscript docs as those failed)
> which makes me think there's either something wrong with my tree or
> these snapshots do something that stops the problem from coming up.
> 
> [1]: http://deb.haskell.org/dailies/2014-04-30/ghc_7.9.20140430.orig.tar.bz2
> [2]: http://deb.haskell.org/dailies/2014-05-11/ghc_7.9.20140510.orig.tar.bz2
> 

After these attempts, I deleted my whole ghc tree and cloned it fresh.
It has built successfully. Clearly ?make clean? is not doing its job
properly somewhere but at this point I'm just happy I finally got it to
build.

-- 
Mateusz K.

From ggreif at gmail.com  Mon May 12 22:33:33 2014
From: ggreif at gmail.com (Gabor Greif)
Date: Tue, 13 May 2014 00:33:33 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
 <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
Message-ID: <CAK-hX0mY0yyH4_LvBRQC9pX=dTTWwMw=t20HL1OBbj_ov8t4VA@mail.gmail.com>

On 5/12/14, Richard Eisenberg <eir at cis.upenn.edu> wrote:
> This one was my fault/decision. The TH.Lib functions tend to mirror exactly
> the constructors in TH.Syntax. We removed the constructors (for good reason

Hmmm, okay, I see you added `equalityT` which is just a shallow
wrapper around a new constructor.

> -- predicates and types really are the same now), so I thought it best to
> remove the TH.Lib function, too. In the cases where code had to be updated,
> would keeping classP in be enough to prevent the breakage?

Cannot speak for many packages, but adding `classP` back would make
llvm-general-pure compilable again with HEAD. Maybe we could add it
back and mark it as deprecated?

>
> We could, of course, just leave the functions there with new
> implementations, but that feels like it could accumulate legacy functions
> over time.

I see no serious drawbacks with an explicitly deprecated API.

>
> Here are some ideas for this, and other similar situations, going forward:
> 1) Don't remove functions from TH.Lib unless absolutely necessary (which
> should probably never happen).
> 2) Remove functions from TH.Lib, but support some other package
> ("th-compat") which fills in the compatibility gap. This package would not
> be tied in with GHC. It would use CPP to export functions in order to remain
> compatible with a range of GHC versions. In this example, the package would
> export a fresh classP in 7.9+ but just re-export TH's in 7.8-.

This sounds like a good idea, but the dependent packages would need to
adopt this scheme. I.e. import `classP` from th-compat, and hiding
`classP` from import TH.Lib.

Not sure what the best practices are. Anyway, if this scheme works,
one could remove TH.Lib.classP from GHC 7.12.

> 3) Do what I've done -- keep TH.Lib parallel with TH.Syntax and leave it to
> users to sort it out as they see fit.

This would imply that some packages need to perform preprocessor
conditional compilation to include `classP`. IMHO the worst option, as
it causes duplication.

Just my few cents.

Cheers,

    Gabor

>
> It is worth noting that a change of this sort in TH.Lib corresponds to a
> breaking change in TH.Syntax. But, perhaps most people rely on Lib and not
> on Syntax.
>
> I'm happy to follow what the community thinks is best here -- I don't have
> any vested opinion.
>
> Thanks -- and sorry for the breakage!
> Richard
>
> On May 12, 2014, at 10:35 AM, Johan Tibell <johan.tibell at gmail.com> wrote:
>
>> That would be nice. I had to fix some breakage caused by this in one of
>> Bryan's libraries.
>>
>>
>> On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com> wrote:
>> The last two commits from (Apr 9) on
>>
>> <https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs>
>>
>> removed a helper to construct applied type class constraints (`classP`).
>>
>> Some packages (notably `llvm-general-pure`) though, depend on it.
>>
>> Can we add back something like this:
>>
>> {{{
>> classP :: Name -> [Q Type] -> Q Pred
>> classP cla tys
>>   = do
>>       tysl <- sequence tys
>>       return (foldl' AppT (ConT cla) tysl)
>> }}}
>>
>> and export it again? Or is there such a helper with a different name
>> already?
>>
>> Cheers,
>>
>>     Gabor
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>
>

From karel.gardas at centrum.cz  Tue May 13 06:30:05 2014
From: karel.gardas at centrum.cz (Karel Gardas)
Date: Tue, 13 May 2014 08:30:05 +0200
Subject: [commit: ghc] master: Revert "Per-thread allocation counters
 and limits" (f0fcc41)
In-Reply-To: <20140504214529.449EA2406D@ghc.haskell.org>
References: <20140504214529.449EA2406D@ghc.haskell.org>
Message-ID: <5371BBED.7070702@centrum.cz>


Hello Simon,

I'm sorry to disturb you, but I've noticed that your revert patch below 
contains this change:

diff --git a/includes/CodeGen.Platform.hs b/includes/CodeGen.Platform.hs
index f3abb3d..3d6dd41 100644
--- a/includes/CodeGen.Platform.hs
+++ b/includes/CodeGen.Platform.hs
@@ -741,8 +741,10 @@ globalRegMaybe CurrentTSO               = Just 
(RealRegSingle REG_CurrentTSO)
  # ifdef REG_CurrentNursery
  globalRegMaybe CurrentNursery           = Just (RealRegSingle 
REG_CurrentNursery)
  # endif
-#endif
  globalRegMaybe _                        = Nothing
+#else
+globalRegMaybe = panic "globalRegMaybe not defined for this platform"
+#endif


and I'm not sure if this is intentional or just overlooked addition. The 
problem with this line is that it causes stage1 panic on unregisterised 
build on PPC64 platform:

http://haskell.inf.elte.hu/builders/linux-ppc64-head/41/10.html

and we have not had such panic before the patch:

http://haskell.inf.elte.hu/builders/linux-ppc64-head/31/10.html -- well, 
you see that dll-split segfaults, but at least ghc-stage1 is proved to 
work well here.

Kudos to Gabor Pali who spotted this on PPC64 builder...

Thanks!
Karel

On 05/ 4/14 11:45 PM, git at git.haskell.org wrote:
> Repository : ssh://git at git.haskell.org/ghc
>
> On branch  : master
> Link       : http://ghc.haskell.org/trac/ghc/changeset/f0fcc41d755876a1b02d1c7c79f57515059f6417/ghc
>
>> ---------------------------------------------------------------
>
> commit f0fcc41d755876a1b02d1c7c79f57515059f6417
> Author: Simon Marlow<marlowsd at gmail.com>
> Date:   Sun May 4 20:27:42 2014 +0100
>
>      Revert "Per-thread allocation counters and limits"
>
>      Problems were found on 32-bit platforms, I'll commit again when I have a fix.
>
>      This reverts the following commits:
>         54b31f744848da872c7c6366dea840748e01b5cf
>         b0534f78a73f972e279eed4447a5687bd6a8308e
>
>
>> ---------------------------------------------------------------
>
> f0fcc41d755876a1b02d1c7c79f57515059f6417
>   compiler/cmm/CmmLayoutStack.hs                     |   9 +-
>   compiler/codeGen/StgCmmForeign.hs                  | 268 ++++++---------------
>   includes/CodeGen.Platform.hs                       |   4 +-
>   includes/rts/Constants.h                           |   6 -
>   includes/rts/Flags.h                               |   8 -
>   includes/rts/Threads.h                             |   8 +-
>   includes/rts/storage/TSO.h                         |  31 +--
>   libraries/base/Control/Exception.hs                |   1 -
>   libraries/base/Control/Exception/Base.hs           |   1 -
>   libraries/base/GHC/Conc.lhs                        |   6 -
>   libraries/base/GHC/Conc/Sync.lhs                   |  92 +------
>   libraries/base/GHC/IO/Exception.hs                 |  21 +-
>   rts/HeapStackCheck.cmm                             |   4 +-
>   rts/Linker.c                                       |   4 -
>   rts/Prelude.h                                      |   2 -
>   rts/RaiseAsync.c                                   |  54 -----
>   rts/RaiseAsync.h                                   |   4 -
>   rts/RtsFlags.c                                     |  10 -
>   rts/RtsStartup.c                                   |   1 -
>   rts/Schedule.c                                     |  19 --
>   rts/Threads.c                                      |  77 +++---
>   rts/package.conf.in                                |   2 -
>   rts/sm/Storage.c                                   |   6 -
>   rts/win32/libHSbase.def                            |   1 -
>   testsuite/tests/concurrent/should_run/all.T        |   7 -
>   .../tests/concurrent/should_run/allocLimit1.hs     |   9 -
>   .../tests/concurrent/should_run/allocLimit1.stderr |   1 -
>   .../tests/concurrent/should_run/allocLimit2.hs     |  17 --
>   .../tests/concurrent/should_run/allocLimit3.hs     |  15 --
>   .../tests/concurrent/should_run/allocLimit3.stderr |   1 -
>   .../tests/concurrent/should_run/allocLimit3.stdout |   1 -
>   .../tests/concurrent/should_run/allocLimit4.hs     |  31 ---
>   utils/deriveConstants/DeriveConstants.hs           |   1 -
>   33 files changed, 144 insertions(+), 578 deletions(-)
>
> Diff suppressed because of size. To see it, use:
>
>      git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc f0fcc41d755876a1b02d1c7c79f57515059f6417
> _______________________________________________
> ghc-commits mailing list
> ghc-commits at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-commits
>


From ptrommler at me.com  Tue May 13 08:06:41 2014
From: ptrommler at me.com (Peter Trommler)
Date: Tue, 13 May 2014 10:06:41 +0200
Subject: [commit: ghc] master: Revert
 "Per-thread allocation counters and limits" (f0fcc41)
In-Reply-To: <5371BBED.7070702@centrum.cz>
References: <20140504214529.449EA2406D@ghc.haskell.org>
 <5371BBED.7070702@centrum.cz>
Message-ID: <C6694956-509E-418E-B9D3-A416500537B6@me.com>

Hi Karel,

This issue is ticket #9055, which also contains a patch. Could we please merge it?

Peter

On 13.05.2014, at 08:30, Karel Gardas <karel.gardas at centrum.cz> wrote:

> 
> Hello Simon,
> 
> I'm sorry to disturb you, but I've noticed that your revert patch below contains this change:
> 
> diff --git a/includes/CodeGen.Platform.hs b/includes/CodeGen.Platform.hs
> index f3abb3d..3d6dd41 100644
> --- a/includes/CodeGen.Platform.hs
> +++ b/includes/CodeGen.Platform.hs
> @@ -741,8 +741,10 @@ globalRegMaybe CurrentTSO               = Just (RealRegSingle REG_CurrentTSO)
> # ifdef REG_CurrentNursery
> globalRegMaybe CurrentNursery           = Just (RealRegSingle REG_CurrentNursery)
> # endif
> -#endif
> globalRegMaybe _                        = Nothing
> +#else
> +globalRegMaybe = panic "globalRegMaybe not defined for this platform"
> +#endif
> 
> 
> and I'm not sure if this is intentional or just overlooked addition. The problem with this line is that it causes stage1 panic on unregisterised build on PPC64 platform:
> 
> http://haskell.inf.elte.hu/builders/linux-ppc64-head/41/10.html
> 
> and we have not had such panic before the patch:
> 
> http://haskell.inf.elte.hu/builders/linux-ppc64-head/31/10.html -- well, you see that dll-split segfaults, but at least ghc-stage1 is proved to work well here.
> 
> Kudos to Gabor Pali who spotted this on PPC64 builder...
> 
> Thanks!
> Karel
> 
> On 05/ 4/14 11:45 PM, git at git.haskell.org wrote:
>> Repository : ssh://git at git.haskell.org/ghc
>> 
>> On branch  : master
>> Link       : http://ghc.haskell.org/trac/ghc/changeset/f0fcc41d755876a1b02d1c7c79f57515059f6417/ghc
>> 
>>> ---------------------------------------------------------------
>> 
>> commit f0fcc41d755876a1b02d1c7c79f57515059f6417
>> Author: Simon Marlow<marlowsd at gmail.com>
>> Date:   Sun May 4 20:27:42 2014 +0100
>> 
>>     Revert "Per-thread allocation counters and limits"
>> 
>>     Problems were found on 32-bit platforms, I'll commit again when I have a fix.
>> 
>>     This reverts the following commits:
>>        54b31f744848da872c7c6366dea840748e01b5cf
>>        b0534f78a73f972e279eed4447a5687bd6a8308e
>> 
>> 
>>> ---------------------------------------------------------------
>> 
>> f0fcc41d755876a1b02d1c7c79f57515059f6417
>>  compiler/cmm/CmmLayoutStack.hs                     |   9 +-
>>  compiler/codeGen/StgCmmForeign.hs                  | 268 ++++++---------------
>>  includes/CodeGen.Platform.hs                       |   4 +-
>>  includes/rts/Constants.h                           |   6 -
>>  includes/rts/Flags.h                               |   8 -
>>  includes/rts/Threads.h                             |   8 +-
>>  includes/rts/storage/TSO.h                         |  31 +--
>>  libraries/base/Control/Exception.hs                |   1 -
>>  libraries/base/Control/Exception/Base.hs           |   1 -
>>  libraries/base/GHC/Conc.lhs                        |   6 -
>>  libraries/base/GHC/Conc/Sync.lhs                   |  92 +------
>>  libraries/base/GHC/IO/Exception.hs                 |  21 +-
>>  rts/HeapStackCheck.cmm                             |   4 +-
>>  rts/Linker.c                                       |   4 -
>>  rts/Prelude.h                                      |   2 -
>>  rts/RaiseAsync.c                                   |  54 -----
>>  rts/RaiseAsync.h                                   |   4 -
>>  rts/RtsFlags.c                                     |  10 -
>>  rts/RtsStartup.c                                   |   1 -
>>  rts/Schedule.c                                     |  19 --
>>  rts/Threads.c                                      |  77 +++---
>>  rts/package.conf.in                                |   2 -
>>  rts/sm/Storage.c                                   |   6 -
>>  rts/win32/libHSbase.def                            |   1 -
>>  testsuite/tests/concurrent/should_run/all.T        |   7 -
>>  .../tests/concurrent/should_run/allocLimit1.hs     |   9 -
>>  .../tests/concurrent/should_run/allocLimit1.stderr |   1 -
>>  .../tests/concurrent/should_run/allocLimit2.hs     |  17 --
>>  .../tests/concurrent/should_run/allocLimit3.hs     |  15 --
>>  .../tests/concurrent/should_run/allocLimit3.stderr |   1 -
>>  .../tests/concurrent/should_run/allocLimit3.stdout |   1 -
>>  .../tests/concurrent/should_run/allocLimit4.hs     |  31 ---
>>  utils/deriveConstants/DeriveConstants.hs           |   1 -
>>  33 files changed, 144 insertions(+), 578 deletions(-)
>> 
>> Diff suppressed because of size. To see it, use:
>> 
>>     git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc f0fcc41d755876a1b02d1c7c79f57515059f6417
>> _______________________________________________
>> ghc-commits mailing list
>> ghc-commits at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-commits
>> 
> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From karel.gardas at centrum.cz  Tue May 13 08:20:16 2014
From: karel.gardas at centrum.cz (Karel Gardas)
Date: Tue, 13 May 2014 10:20:16 +0200
Subject: [commit: ghc] master: Revert "Per-thread allocation counters
 and limits" (f0fcc41)
In-Reply-To: <C6694956-509E-418E-B9D3-A416500537B6@me.com>
References: <20140504214529.449EA2406D@ghc.haskell.org>
 <5371BBED.7070702@centrum.cz> <C6694956-509E-418E-B9D3-A416500537B6@me.com>
Message-ID: <5371D5C0.9030700@centrum.cz>

On 05/13/14 10:06 AM, Peter Trommler wrote:
> Hi Karel,
>
> This issue is ticket #9055, which also contains a patch. Could we please merge it?

I'm the second petitioner for the merge of your fix! Thanks a lot for 
pointing this out and providing the patch!

Cheers,
Karel

From marlowsd at gmail.com  Tue May 13 11:08:14 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Tue, 13 May 2014 12:08:14 +0100
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
Message-ID: <5371FD1E.4040600@gmail.com>

On 12/05/2014 14:18, Johan Tibell wrote:
> Hi all,
>
> I'm not sure how to continue from here. The current backend story feels
> a bit shaky. Do we think we accurately need to reflect the memory model
> in Cmm before we should venture into this area at all, or are we
> comfortable relying on the current implementation of CallishMachOps with
> the knowledge that if we ever want to move loads/stores past those
> calls, we need to address the memory model issue then?

Just document what you expect the semantics to be (e.g. what kind of 
barrier each operation is), and any future optimisations in CmmSink and 
elsewhere will need to respect that.

I'd put that documentation in CmmSink which is where we already have 
similar kinds of documentation.  It would probably be better to move it 
into a wiki page at some point though.

Cheers,
Simon

From marlowsd at gmail.com  Tue May 13 11:29:53 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Tue, 13 May 2014 12:29:53 +0100
Subject: [commit: ghc] master: Revert "Per-thread allocation counters
 and limits" (f0fcc41)
In-Reply-To: <5371BBED.7070702@centrum.cz>
References: <20140504214529.449EA2406D@ghc.haskell.org>
 <5371BBED.7070702@centrum.cz>
Message-ID: <53720231.2020009@gmail.com>

It looks like I accidentally slipped that fix in with the allocation 
counters patch, and when the patch was reverted the fix was reverted 
too.  I'll commit the fix from the patch (which is probably better, 
that's what I intended to do all along).

Sorry for the mixup!

Simon

On 13/05/14 07:30, Karel Gardas wrote:
>
> Hello Simon,
>
> I'm sorry to disturb you, but I've noticed that your revert patch below
> contains this change:
>
> diff --git a/includes/CodeGen.Platform.hs b/includes/CodeGen.Platform.hs
> index f3abb3d..3d6dd41 100644
> --- a/includes/CodeGen.Platform.hs
> +++ b/includes/CodeGen.Platform.hs
> @@ -741,8 +741,10 @@ globalRegMaybe CurrentTSO               = Just
> (RealRegSingle REG_CurrentTSO)
>   # ifdef REG_CurrentNursery
>   globalRegMaybe CurrentNursery           = Just (RealRegSingle
> REG_CurrentNursery)
>   # endif
> -#endif
>   globalRegMaybe _                        = Nothing
> +#else
> +globalRegMaybe = panic "globalRegMaybe not defined for this platform"
> +#endif
>
>
> and I'm not sure if this is intentional or just overlooked addition. The
> problem with this line is that it causes stage1 panic on unregisterised
> build on PPC64 platform:
>
> http://haskell.inf.elte.hu/builders/linux-ppc64-head/41/10.html
>
> and we have not had such panic before the patch:
>
> http://haskell.inf.elte.hu/builders/linux-ppc64-head/31/10.html -- well,
> you see that dll-split segfaults, but at least ghc-stage1 is proved to
> work well here.
>
> Kudos to Gabor Pali who spotted this on PPC64 builder...
>
> Thanks!
> Karel
>
> On 05/ 4/14 11:45 PM, git at git.haskell.org wrote:
>> Repository : ssh://git at git.haskell.org/ghc
>>
>> On branch  : master
>> Link       :
>> http://ghc.haskell.org/trac/ghc/changeset/f0fcc41d755876a1b02d1c7c79f57515059f6417/ghc
>>
>>
>>> ---------------------------------------------------------------
>>
>> commit f0fcc41d755876a1b02d1c7c79f57515059f6417
>> Author: Simon Marlow<marlowsd at gmail.com>
>> Date:   Sun May 4 20:27:42 2014 +0100
>>
>>      Revert "Per-thread allocation counters and limits"
>>
>>      Problems were found on 32-bit platforms, I'll commit again when I
>> have a fix.
>>
>>      This reverts the following commits:
>>         54b31f744848da872c7c6366dea840748e01b5cf
>>         b0534f78a73f972e279eed4447a5687bd6a8308e
>>
>>
>>> ---------------------------------------------------------------
>>
>> f0fcc41d755876a1b02d1c7c79f57515059f6417
>>   compiler/cmm/CmmLayoutStack.hs                     |   9 +-
>>   compiler/codeGen/StgCmmForeign.hs                  | 268
>> ++++++---------------
>>   includes/CodeGen.Platform.hs                       |   4 +-
>>   includes/rts/Constants.h                           |   6 -
>>   includes/rts/Flags.h                               |   8 -
>>   includes/rts/Threads.h                             |   8 +-
>>   includes/rts/storage/TSO.h                         |  31 +--
>>   libraries/base/Control/Exception.hs                |   1 -
>>   libraries/base/Control/Exception/Base.hs           |   1 -
>>   libraries/base/GHC/Conc.lhs                        |   6 -
>>   libraries/base/GHC/Conc/Sync.lhs                   |  92 +------
>>   libraries/base/GHC/IO/Exception.hs                 |  21 +-
>>   rts/HeapStackCheck.cmm                             |   4 +-
>>   rts/Linker.c                                       |   4 -
>>   rts/Prelude.h                                      |   2 -
>>   rts/RaiseAsync.c                                   |  54 -----
>>   rts/RaiseAsync.h                                   |   4 -
>>   rts/RtsFlags.c                                     |  10 -
>>   rts/RtsStartup.c                                   |   1 -
>>   rts/Schedule.c                                     |  19 --
>>   rts/Threads.c                                      |  77 +++---
>>   rts/package.conf.in                                |   2 -
>>   rts/sm/Storage.c                                   |   6 -
>>   rts/win32/libHSbase.def                            |   1 -
>>   testsuite/tests/concurrent/should_run/all.T        |   7 -
>>   .../tests/concurrent/should_run/allocLimit1.hs     |   9 -
>>   .../tests/concurrent/should_run/allocLimit1.stderr |   1 -
>>   .../tests/concurrent/should_run/allocLimit2.hs     |  17 --
>>   .../tests/concurrent/should_run/allocLimit3.hs     |  15 --
>>   .../tests/concurrent/should_run/allocLimit3.stderr |   1 -
>>   .../tests/concurrent/should_run/allocLimit3.stdout |   1 -
>>   .../tests/concurrent/should_run/allocLimit4.hs     |  31 ---
>>   utils/deriveConstants/DeriveConstants.hs           |   1 -
>>   33 files changed, 144 insertions(+), 578 deletions(-)
>>
>> Diff suppressed because of size. To see it, use:
>>
>>      git diff-tree --root --patch-with-stat --no-color
>> --find-copies-harder --ignore-space-at-eol --cc
>> f0fcc41d755876a1b02d1c7c79f57515059f6417
>> _______________________________________________
>> ghc-commits mailing list
>> ghc-commits at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-commits
>>
>


From mail at joachim-breitner.de  Tue May 13 14:16:12 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Tue, 13 May 2014 16:16:12 +0200
Subject: Many new validate failures, "Synonym in TyConAppCo"-related
Message-ID: <1399990572.15516.14.camel@kirk>

Hi,

I suddenly get

        Unexpected failures:
           gadt                          T7294 [exit code non-0] (normal)
           indexed-types/should_compile  GADT1 [exit code non-0] (normal)
           indexed-types/should_compile  GADT11 [exit code non-0] (normal)
           indexed-types/should_compile  GADT3 [exit code non-0] (normal)
           indexed-types/should_compile  IndTypesPerf [bad exit code] (normal)
           indexed-types/should_compile  NonLinearLHS [exit code non-0] (normal)
           indexed-types/should_compile  Numerals [exit code non-0] (normal)
           indexed-types/should_compile  Roman1 [exit code non-0] (normal)
           indexed-types/should_compile  Simple9 [exit code non-0] (normal)
           indexed-types/should_compile  T2219 [exit code non-0] (normal)
           indexed-types/should_compile  T2627 [exit code non-0] (normal)
           indexed-types/should_compile  T3484 [exit code non-0] (normal)
           indexed-types/should_compile  T4935 [exit code non-0] (normal)
           indexed-types/should_compile  T7585 [exit code non-0] (normal)
           indexed-types/should_fail     T2664a [exit code non-0] (normal)
           polykinds                     PolyKinds10 [exit code non-0] (normal)
           polykinds                     PolyKinds12 [exit code non-0] (normal)
           polykinds                     T6002 [exit code non-0] (normal)
           simplCore/should_compile      T5329 [exit code non-0] (normal)
           simplCore/should_run          T5315 [exit code non-0] (optasm)
           typecheck/should_compile      T5490 [exit code non-0] (normal)
           typecheck/should_compile      T7196 [exit code non-0] (normal)
        
after these three changes were pushed:

        Changes to ghc:
        commit 214ad2d24cda4aaef541df3e213d5c4845f95c71
        Author: Peter Trommler <ptrommler at scm.org>
        Date:   Wed Apr 30 11:41:51 2014 +0200
        
            Fix globalRegMaybe for unregisterised build.
        
            In commit 83a003f globalRegMaybe will be called but panics
            for unregisterised compilers.
        
            In an unregisterised compiler there are no global registers
            so always return `Nothing`.
        
            Fixes #9055.
        
        commit 21f17d06aa5c33e639f1b0d37b4bf888b494c441
        Author: Simon Peyton Jones <simonpj at microsoft.com>
        Date:   Tue May 13 13:17:19 2014 +0100
        
            Fix invariant in mkAppCoFlexible
        
            mkAppCoFlexible was breaking the invariant that the head of a TyConAppCo cannot
            be a type synonym.  This small patch fixes it.
        
        commit 4cfc1fae11ec9a5c4b34ac747f0ce50f52423eba
        Author: Simon Peyton Jones <simonpj at microsoft.com>
        Date:   Tue May 13 13:15:45 2014 +0100
        
            Lint should check that TyConAppCo doesn't have a synonym in the tycon position
        
            That is why Lint didn't nail Trac #9102

Full log at
https://s3.amazonaws.com/archive.travis-ci.org/jobs/25063931/log.txt. It
seems that most, if not all, fail with a "Synonym in TyConAppCo" lint
error.


If Lint is correct here, then this may indicate further bugs are around.
But in that case the correct thing would be to have a ticket number for
that problem and mark all failing test cases as expect_broken ? it?s the
only sensible way of having an always succeeding test suite in master.

So is the Lint check correct and this uncovered one or more bugs here,
or is the Lint check actually too restrictive?

Greetings,
Joachim


Greetings,
Joachim



-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From christiaan.baaij at gmail.com  Tue May 13 14:44:44 2014
From: christiaan.baaij at gmail.com (Christiaan Baaij)
Date: Tue, 13 May 2014 16:44:44 +0200
Subject: Many new validate failures, "Synonym in TyConAppCo"-related
In-Reply-To: <1399990572.15516.14.camel@kirk>
References: <1399990572.15516.14.camel@kirk>
Message-ID: <0E503005-09A4-4848-A0F0-B199DB15DDF8@gmail.com>

I see that the core-lint patch calls:

> -- | Is this a 'TyCon' representing a type synonym (@type@)?
> isSynTyCon :: TyCon -> Bool
> isSynTyCon (SynTyCon {}) = True
> isSynTyCon _             = False

And from simon's comments it seems like he only wanted to check for "normal" type synonyms.
'isSynTyCon' asserts to 'True' for many more tycons though, which include, aside from normal type synonyms:
- type family tycons
- dictionary tycons

Most of the core lint errors seem to be due to the fact that 'TyConAppCo' is applied to a type family tycon.

-- Christiaan

p.s. Regardless, I feel that the documentation for 'isSynTyCon' in misleading as to what it actually asserts.

On May 13, 2014, at 4:16 PM, Joachim Breitner <mail at joachim-breitner.de> wrote:

> Hi,
> 
> I suddenly get
> 
>        Unexpected failures:
>           gadt                          T7294 [exit code non-0] (normal)
>           indexed-types/should_compile  GADT1 [exit code non-0] (normal)
>           indexed-types/should_compile  GADT11 [exit code non-0] (normal)
>           indexed-types/should_compile  GADT3 [exit code non-0] (normal)
>           indexed-types/should_compile  IndTypesPerf [bad exit code] (normal)
>           indexed-types/should_compile  NonLinearLHS [exit code non-0] (normal)
>           indexed-types/should_compile  Numerals [exit code non-0] (normal)
>           indexed-types/should_compile  Roman1 [exit code non-0] (normal)
>           indexed-types/should_compile  Simple9 [exit code non-0] (normal)
>           indexed-types/should_compile  T2219 [exit code non-0] (normal)
>           indexed-types/should_compile  T2627 [exit code non-0] (normal)
>           indexed-types/should_compile  T3484 [exit code non-0] (normal)
>           indexed-types/should_compile  T4935 [exit code non-0] (normal)
>           indexed-types/should_compile  T7585 [exit code non-0] (normal)
>           indexed-types/should_fail     T2664a [exit code non-0] (normal)
>           polykinds                     PolyKinds10 [exit code non-0] (normal)
>           polykinds                     PolyKinds12 [exit code non-0] (normal)
>           polykinds                     T6002 [exit code non-0] (normal)
>           simplCore/should_compile      T5329 [exit code non-0] (normal)
>           simplCore/should_run          T5315 [exit code non-0] (optasm)
>           typecheck/should_compile      T5490 [exit code non-0] (normal)
>           typecheck/should_compile      T7196 [exit code non-0] (normal)
> 
> after these three changes were pushed:
> 
>        Changes to ghc:
>        commit 214ad2d24cda4aaef541df3e213d5c4845f95c71
>        Author: Peter Trommler <ptrommler at scm.org>
>        Date:   Wed Apr 30 11:41:51 2014 +0200
> 
>            Fix globalRegMaybe for unregisterised build.
> 
>            In commit 83a003f globalRegMaybe will be called but panics
>            for unregisterised compilers.
> 
>            In an unregisterised compiler there are no global registers
>            so always return `Nothing`.
> 
>            Fixes #9055.
> 
>        commit 21f17d06aa5c33e639f1b0d37b4bf888b494c441
>        Author: Simon Peyton Jones <simonpj at microsoft.com>
>        Date:   Tue May 13 13:17:19 2014 +0100
> 
>            Fix invariant in mkAppCoFlexible
> 
>            mkAppCoFlexible was breaking the invariant that the head of a TyConAppCo cannot
>            be a type synonym.  This small patch fixes it.
> 
>        commit 4cfc1fae11ec9a5c4b34ac747f0ce50f52423eba
>        Author: Simon Peyton Jones <simonpj at microsoft.com>
>        Date:   Tue May 13 13:15:45 2014 +0100
> 
>            Lint should check that TyConAppCo doesn't have a synonym in the tycon position
> 
>            That is why Lint didn't nail Trac #9102
> 
> Full log at
> https://s3.amazonaws.com/archive.travis-ci.org/jobs/25063931/log.txt. It
> seems that most, if not all, fail with a "Synonym in TyConAppCo" lint
> error.
> 
> 
> If Lint is correct here, then this may indicate further bugs are around.
> But in that case the correct thing would be to have a ticket number for
> that problem and mark all failing test cases as expect_broken ? it?s the
> only sensible way of having an always succeeding test suite in master.
> 
> So is the Lint check correct and this uncovered one or more bugs here,
> or is the Lint check actually too restrictive?
> 
> Greetings,
> Joachim
> 
> 
> Greetings,
> Joachim
> 
> 
> 
> -- 
> Joachim ?nomeata? Breitner
>  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
>  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
>  Debian Developer: nomeata at debian.org
> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From fuuzetsu at fuuzetsu.co.uk  Tue May 13 19:19:10 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Tue, 13 May 2014 21:19:10 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-hX0mY0yyH4_LvBRQC9pX=dTTWwMw=t20HL1OBbj_ov8t4VA@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
 <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
 <CAK-hX0mY0yyH4_LvBRQC9pX=dTTWwMw=t20HL1OBbj_ov8t4VA@mail.gmail.com>
Message-ID: <5372702E.4090100@fuuzetsu.co.uk>

On 05/13/2014 12:33 AM, Gabor Greif wrote:
> On 5/12/14, Richard Eisenberg <eir at cis.upenn.edu> wrote:
>> This one was my fault/decision. The TH.Lib functions tend to mirror exactly
>> the constructors in TH.Syntax. We removed the constructors (for good reason
> 
> Hmmm, okay, I see you added `equalityT` which is just a shallow
> wrapper around a new constructor.
> 
>> -- predicates and types really are the same now), so I thought it best to
>> remove the TH.Lib function, too. In the cases where code had to be updated,
>> would keeping classP in be enough to prevent the breakage?
> 
> Cannot speak for many packages, but adding `classP` back would make
> llvm-general-pure compilable again with HEAD. Maybe we could add it
> back and mark it as deprecated?

Why not simply patch llvm-general-pure? I have done this with quite a
few packages when the TH change was made and it seems to work. If
anything, it will make the authors realise something changed upstream
and try to find out how.

>>
>> We could, of course, just leave the functions there with new
>> implementations, but that feels like it could accumulate legacy functions
>> over time.
> 
> I see no serious drawbacks with an explicitly deprecated API.
> 
>>
>> Here are some ideas for this, and other similar situations, going forward:
>> 1) Don't remove functions from TH.Lib unless absolutely necessary (which
>> should probably never happen).
>> 2) Remove functions from TH.Lib, but support some other package
>> ("th-compat") which fills in the compatibility gap. This package would not
>> be tied in with GHC. It would use CPP to export functions in order to remain
>> compatible with a range of GHC versions. In this example, the package would
>> export a fresh classP in 7.9+ but just re-export TH's in 7.8-.
> 
> This sounds like a good idea, but the dependent packages would need to
> adopt this scheme. I.e. import `classP` from th-compat, and hiding
> `classP` from import TH.Lib.
> 
> Not sure what the best practices are. Anyway, if this scheme works,
> one could remove TH.Lib.classP from GHC 7.12.
> 
>> 3) Do what I've done -- keep TH.Lib parallel with TH.Syntax and leave it to
>> users to sort it out as they see fit.
> 
> This would imply that some packages need to perform preprocessor
> conditional compilation to include `classP`. IMHO the worst option, as
> it causes duplication.

I think this is a fair solution until TH 2.9 is phased out.

> Just my few cents.
> 
> Cheers,
> 
>     Gabor
> 
>>
>> It is worth noting that a change of this sort in TH.Lib corresponds to a
>> breaking change in TH.Syntax. But, perhaps most people rely on Lib and not
>> on Syntax.
>>
>> I'm happy to follow what the community thinks is best here -- I don't have
>> any vested opinion.
>>
>> Thanks -- and sorry for the breakage!
>> Richard
>>
>> On May 12, 2014, at 10:35 AM, Johan Tibell <johan.tibell at gmail.com> wrote:
>>
>>> That would be nice. I had to fix some breakage caused by this in one of
>>> Bryan's libraries.
>>>
>>>
>>> On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com> wrote:
>>> The last two commits from (Apr 9) on
>>>
>>> <https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs>
>>>
>>> removed a helper to construct applied type class constraints (`classP`).
>>>
>>> Some packages (notably `llvm-general-pure`) though, depend on it.
>>>
>>> Can we add back something like this:
>>>
>>> {{{
>>> classP :: Name -> [Q Type] -> Q Pred
>>> classP cla tys
>>>   = do
>>>       tysl <- sequence tys
>>>       return (foldl' AppT (ConT cla) tysl)
>>> }}}
>>>
>>> and export it again? Or is there such a helper with a different name
>>> already?
>>>
>>> Cheers,
>>>
>>>     Gabor
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>>
>>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 


-- 
Mateusz K.

From carter.schonwald at gmail.com  Tue May 13 20:11:16 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Tue, 13 May 2014 16:11:16 -0400
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-hX0mY0yyH4_LvBRQC9pX=dTTWwMw=t20HL1OBbj_ov8t4VA@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
 <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
 <CAK-hX0mY0yyH4_LvBRQC9pX=dTTWwMw=t20HL1OBbj_ov8t4VA@mail.gmail.com>
Message-ID: <CAHYVw0yUpQv+iQ9uW3jtZj=gaa-AiJqwkL+SKNZ0h6zh28bk_A@mail.gmail.com>

i'm quite certain BScarlet will accept patches to fix up llvm-general-pure
for ghc head. Hes a very responsive author


On Mon, May 12, 2014 at 6:33 PM, Gabor Greif <ggreif at gmail.com> wrote:

> On 5/12/14, Richard Eisenberg <eir at cis.upenn.edu> wrote:
> > This one was my fault/decision. The TH.Lib functions tend to mirror
> exactly
> > the constructors in TH.Syntax. We removed the constructors (for good
> reason
>
> Hmmm, okay, I see you added `equalityT` which is just a shallow
> wrapper around a new constructor.
>
> > -- predicates and types really are the same now), so I thought it best to
> > remove the TH.Lib function, too. In the cases where code had to be
> updated,
> > would keeping classP in be enough to prevent the breakage?
>
> Cannot speak for many packages, but adding `classP` back would make
> llvm-general-pure compilable again with HEAD. Maybe we could add it
> back and mark it as deprecated?
>
> >
> > We could, of course, just leave the functions there with new
> > implementations, but that feels like it could accumulate legacy functions
> > over time.
>
> I see no serious drawbacks with an explicitly deprecated API.
>
> >
> > Here are some ideas for this, and other similar situations, going
> forward:
> > 1) Don't remove functions from TH.Lib unless absolutely necessary (which
> > should probably never happen).
> > 2) Remove functions from TH.Lib, but support some other package
> > ("th-compat") which fills in the compatibility gap. This package would
> not
> > be tied in with GHC. It would use CPP to export functions in order to
> remain
> > compatible with a range of GHC versions. In this example, the package
> would
> > export a fresh classP in 7.9+ but just re-export TH's in 7.8-.
>
> This sounds like a good idea, but the dependent packages would need to
> adopt this scheme. I.e. import `classP` from th-compat, and hiding
> `classP` from import TH.Lib.
>
> Not sure what the best practices are. Anyway, if this scheme works,
> one could remove TH.Lib.classP from GHC 7.12.
>
> > 3) Do what I've done -- keep TH.Lib parallel with TH.Syntax and leave it
> to
> > users to sort it out as they see fit.
>
> This would imply that some packages need to perform preprocessor
> conditional compilation to include `classP`. IMHO the worst option, as
> it causes duplication.
>
> Just my few cents.
>
> Cheers,
>
>     Gabor
>
> >
> > It is worth noting that a change of this sort in TH.Lib corresponds to a
> > breaking change in TH.Syntax. But, perhaps most people rely on Lib and
> not
> > on Syntax.
> >
> > I'm happy to follow what the community thinks is best here -- I don't
> have
> > any vested opinion.
> >
> > Thanks -- and sorry for the breakage!
> > Richard
> >
> > On May 12, 2014, at 10:35 AM, Johan Tibell <johan.tibell at gmail.com>
> wrote:
> >
> >> That would be nice. I had to fix some breakage caused by this in one of
> >> Bryan's libraries.
> >>
> >>
> >> On Mon, May 12, 2014 at 4:12 PM, Gabor Greif <ggreif at gmail.com> wrote:
> >> The last two commits from (Apr 9) on
> >>
> >> <
> https://github.com/ghc/packages-template-haskell/commits/master/Language/Haskell/TH/Lib.hs
> >
> >>
> >> removed a helper to construct applied type class constraints (`classP`).
> >>
> >> Some packages (notably `llvm-general-pure`) though, depend on it.
> >>
> >> Can we add back something like this:
> >>
> >> {{{
> >> classP :: Name -> [Q Type] -> Q Pred
> >> classP cla tys
> >>   = do
> >>       tysl <- sequence tys
> >>       return (foldl' AppT (ConT cla) tysl)
> >> }}}
> >>
> >> and export it again? Or is there such a helper with a different name
> >> already?
> >>
> >> Cheers,
> >>
> >>     Gabor
> >> _______________________________________________
> >> ghc-devs mailing list
> >> ghc-devs at haskell.org
> >> http://www.haskell.org/mailman/listinfo/ghc-devs
> >>
> >
> >
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From hvr at gnu.org  Tue May 13 21:14:39 2014
From: hvr at gnu.org (Herbert Valerio Riedel)
Date: Tue, 13 May 2014 23:14:39 +0200
Subject: Many new validate failures, "Synonym in TyConAppCo"-related
In-Reply-To: <1399990572.15516.14.camel@kirk> (Joachim Breitner's message of
 "Tue, 13 May 2014 16:16:12 +0200")
References: <1399990572.15516.14.camel@kirk>
Message-ID: <87siodv0sg.fsf@gnu.org>

On 2014-05-13 at 16:16:12 +0200, Joachim Breitner wrote:

[...]

>         commit 4cfc1fae11ec9a5c4b34ac747f0ce50f52423eba
>         Author: Simon Peyton Jones <simonpj at microsoft.com>
>         Date:   Tue May 13 13:15:45 2014 +0100
>         
>             Lint should check that TyConAppCo doesn't have a synonym in the tycon position
>         
>             That is why Lint didn't nail Trac #9102

Fyi, this commit actually already breaks an ordinary './validate' run with

,----
| "inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O -Werror -Wall -H64m -O0    -package-name hoopl-3.10.0.1 -hide-all-packages -i -ilibraries/hoopl/src -ilibraries/hoopl/dist-install/build -ilibraries/hoopl/dist-install/build/autogen -Ilibraries/hoopl/dist-install/build -Ilibraries/hoopl/dist-install/build/autogen -Ilibraries/hoopl/.    -optP-include -optPlibraries/hoopl/dist-install/build/autogen/cabal_macros.h -package base-4.7.1.0 -package containers-0.5.5.1 -Wall -fno-warn-name-shadowing -XHaskell2010 -O2 -O -dcore-lint -fno-warn-deprecated-flags  -no-user-package-db -rtsopts      -odir libraries/hoopl/dist-install/build -hidir libraries/hoopl/dist-install/build -stubdir libraries/hoopl/dist-install/build  -dynamic-too -c libraries/hoopl/src/Compiler/Hoopl/Block.hs -o libraries/hoopl/dist-install/build/Compiler/Hoopl/Block.o -dyno libraries/hoopl/dist-install/build/Compiler/Hoopl/Block.dyn_o
| *** Core Lint errors : in result of Desugar (after optimization) ***
| <no location info>: Warning:
|     In a case alternative: (Compiler.Hoopl.Block.BlockCO dt_d26X :: e_a16G
|                                                                     GHC.Prim.~# Compiler.Hoopl.Block.C,
|                                                          dt_d26Y :: x_a16H
|                                                                     GHC.Prim.~# Compiler.Hoopl.Block.O,
|                                                          f_aJQ :: n_aSy Compiler.Hoopl.Block.C Compiler.Hoopl.Block.O,
|                                                          b_aJR :: Compiler.Hoopl.Block.Block
|                                                                     n_aSy
|                                                                     Compiler.Hoopl.Block.O
|                                                                     Compiler.Hoopl.Block.O)
|     Synonym in TyConAppCo: (Compiler.Hoopl.Block.IndexedCO
|                               (Sym dt_d26Y) <a_aSz>_N <b_aSA>_N)_R
| *** Offending Program ***
| Compiler.Hoopl.Block.backBiasBlock
|   :: forall (n_asZ :: * -> * -> *) e_at0 x_at1.
|      Compiler.Hoopl.Block.Block n_asZ e_at0 x_at1
|      -> Compiler.Hoopl.Block.Block n_asZ e_at0 x_at1
| [...many lines of output follow...]
`----

From simonpj at microsoft.com  Tue May 13 22:42:34 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Tue, 13 May 2014 22:42:34 +0000
Subject: Many new validate failures, "Synonym in TyConAppCo"-related
In-Reply-To: <1399990572.15516.14.camel@kirk>
References: <1399990572.15516.14.camel@kirk>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF0C86764B@DB3PRD3001MB020.064d.mgd.msft.net>

Mea culpa.  I thought I'd validated but perhaps I got it wrong -- I was in a hurry because of catching a train.  

Anyway, Christiaan is spot on... the Lint check should only be for genuine type synonyms, and isSynTyCon is misleadingly named.  I'll add a patch for that shortly, and deal with the naming issue later.

Apologies

Simon

| -----Original Message-----
| From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Joachim
| Breitner
| Sent: 13 May 2014 15:16
| To: ghc-devs at haskell.org
| Subject: Many new validate failures, "Synonym in TyConAppCo"-related
| 
| Hi,
| 
| I suddenly get
| 
|         Unexpected failures:
|            gadt                          T7294 [exit code non-0] (normal)
|            indexed-types/should_compile  GADT1 [exit code non-0] (normal)
|            indexed-types/should_compile  GADT11 [exit code non-0]
| (normal)
|            indexed-types/should_compile  GADT3 [exit code non-0] (normal)
|            indexed-types/should_compile  IndTypesPerf [bad exit code]
| (normal)
|            indexed-types/should_compile  NonLinearLHS [exit code non-0]
| (normal)
|            indexed-types/should_compile  Numerals [exit code non-0]
| (normal)
|            indexed-types/should_compile  Roman1 [exit code non-0]
| (normal)
|            indexed-types/should_compile  Simple9 [exit code non-0]
| (normal)
|            indexed-types/should_compile  T2219 [exit code non-0] (normal)
|            indexed-types/should_compile  T2627 [exit code non-0] (normal)
|            indexed-types/should_compile  T3484 [exit code non-0] (normal)
|            indexed-types/should_compile  T4935 [exit code non-0] (normal)
|            indexed-types/should_compile  T7585 [exit code non-0] (normal)
|            indexed-types/should_fail     T2664a [exit code non-0]
| (normal)
|            polykinds                     PolyKinds10 [exit code non-0]
| (normal)
|            polykinds                     PolyKinds12 [exit code non-0]
| (normal)
|            polykinds                     T6002 [exit code non-0] (normal)
|            simplCore/should_compile      T5329 [exit code non-0] (normal)
|            simplCore/should_run          T5315 [exit code non-0] (optasm)
|            typecheck/should_compile      T5490 [exit code non-0] (normal)
|            typecheck/should_compile      T7196 [exit code non-0] (normal)
| 
| after these three changes were pushed:
| 
|         Changes to ghc:
|         commit 214ad2d24cda4aaef541df3e213d5c4845f95c71
|         Author: Peter Trommler <ptrommler at scm.org>
|         Date:   Wed Apr 30 11:41:51 2014 +0200
| 
|             Fix globalRegMaybe for unregisterised build.
| 
|             In commit 83a003f globalRegMaybe will be called but panics
|             for unregisterised compilers.
| 
|             In an unregisterised compiler there are no global registers
|             so always return `Nothing`.
| 
|             Fixes #9055.
| 
|         commit 21f17d06aa5c33e639f1b0d37b4bf888b494c441
|         Author: Simon Peyton Jones <simonpj at microsoft.com>
|         Date:   Tue May 13 13:17:19 2014 +0100
| 
|             Fix invariant in mkAppCoFlexible
| 
|             mkAppCoFlexible was breaking the invariant that the head of a
| TyConAppCo cannot
|             be a type synonym.  This small patch fixes it.
| 
|         commit 4cfc1fae11ec9a5c4b34ac747f0ce50f52423eba
|         Author: Simon Peyton Jones <simonpj at microsoft.com>
|         Date:   Tue May 13 13:15:45 2014 +0100
| 
|             Lint should check that TyConAppCo doesn't have a synonym in
| the tycon position
| 
|             That is why Lint didn't nail Trac #9102
| 
| Full log at
| https://s3.amazonaws.com/archive.travis-ci.org/jobs/25063931/log.txt. It
| seems that most, if not all, fail with a "Synonym in TyConAppCo" lint
| error.
| 
| 
| If Lint is correct here, then this may indicate further bugs are around.
| But in that case the correct thing would be to have a ticket number for
| that problem and mark all failing test cases as expect_broken ? it?s the
| only sensible way of having an always succeeding test suite in master.
| 
| So is the Lint check correct and this uncovered one or more bugs here,
| or is the Lint check actually too restrictive?
| 
| Greetings,
| Joachim
| 
| 
| Greetings,
| Joachim
| 
| 
| 
| --
| Joachim ?nomeata? Breitner
|   mail at joachim-breitner.de ? http://www.joachim-breitner.de/
|   Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
|   Debian Developer: nomeata at debian.org


From kazu at iij.ad.jp  Wed May 14 04:35:00 2014
From: kazu at iij.ad.jp (Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=))
Date: Wed, 14 May 2014 13:35:00 +0900 (JST)
Subject: clang warnings
Message-ID: <20140514.133500.325427061403917868.kazu@iij.ad.jp>

Hi,

To test the coming GHC 7.8.3, I started to use the latest ghc-7.8
branch. Unfortunately, on my Mac, I saw many warnings which are not
displayed with GHC 7.8.2:

clang: warning: argument unused during compilation: '-fno-stack-protector'
clang: warning: argument unused during compilation: '-D TABLES_NEXT_TO_CODE'
clang: warning: argument unused during compilation: '-I test'
clang: warning: argument unused during compilation: '-I dist/build/spec/spec-tmp'
clang: warning: argument unused during compilation: '-I dist/build/spec/spec-tmp'
clang: warning: argument unused during compilation: '-I dist/build/autogen'
clang: warning: argument unused during compilation: '-I dist/build/spec/spec-tmp'

Is this a known issue?

--Kazu

From greg at gregorycollins.net  Wed May 14 15:53:46 2014
From: greg at gregorycollins.net (Gregory Collins)
Date: Wed, 14 May 2014 17:53:46 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
 <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
Message-ID: <CAHZrzdqisoadDk2guBGkWEvy0PcAzeL-nXnTfU9M-wMDEXdUZg@mail.gmail.com>

On Mon, May 12, 2014 at 4:58 PM, Richard Eisenberg <eir at cis.upenn.edu>wrote:

> We could, of course, just leave the functions there with new
> implementations, but that feels like it could accumulate legacy functions
> over time.


I think the ultimate goal of removing the function was not unwise of you,
but the right thing to do here would be to write a reimplementation, mark
it as {-# DEPRECATED #-}, and give a timetable for its future removal. This
gives users time to adjust and minimizes breakage.

G
-- 
Gregory Collins <greg at gregorycollins.net>
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From ggreif at gmail.com  Wed May 14 21:40:20 2014
From: ggreif at gmail.com (Gabor Greif)
Date: Wed, 14 May 2014 23:40:20 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAHZrzdqisoadDk2guBGkWEvy0PcAzeL-nXnTfU9M-wMDEXdUZg@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
 <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
 <CAHZrzdqisoadDk2guBGkWEvy0PcAzeL-nXnTfU9M-wMDEXdUZg@mail.gmail.com>
Message-ID: <CAK-hX0mYg54p7BN=qj2S1EbUGxTs80TSH0sLyxY1zxdXaCYE5Q@mail.gmail.com>

Alrighty, this is what I have now. If you think this is ok, I'll go on
re-implementing equalP too and commit. Then we can bikeshed about the
deprecation message :-)

diff --git a/libraries/template-haskell/Language/Haskell/TH/Lib.hs
b/libraries/template-haskell/Language/Haskell/TH/Lib.hs
index 49baa96..08235ba 100644
--- a/libraries/template-haskell/Language/Haskell/TH/Lib.hs
+++ b/libraries/template-haskell/Language/Haskell/TH/Lib.hs
@@ -526,6 +526,13 @@ sigT t k
 equalityT :: TypeQ
 equalityT = return EqualityT

+{-# DEPRECATED classP "Constraint constructors are just type
constructors, frob this code as 'constraintT'." #-}
+classP :: Name -> [Q Type] -> Q Pred
+classP cla tys
+  = do
+      tysl <- sequence tys
+      return (foldl AppT (ConT cla) tysl)
+
 promotedT :: Name -> TypeQ
 promotedT = return . PromotedT


Cheers,

    Gabor


On 5/14/14, Gregory Collins <greg at gregorycollins.net> wrote:
> On Mon, May 12, 2014 at 4:58 PM, Richard Eisenberg
> <eir at cis.upenn.edu>wrote:
>
>> We could, of course, just leave the functions there with new
>> implementations, but that feels like it could accumulate legacy functions
>> over time.
>
>
> I think the ultimate goal of removing the function was not unwise of you,
> but the right thing to do here would be to write a reimplementation, mark
> it as {-# DEPRECATED #-}, and give a timetable for its future removal. This
> gives users time to adjust and minimizes breakage.
>
> G
> --
> Gregory Collins <greg at gregorycollins.net>
>

From kazu at iij.ad.jp  Thu May 15 03:43:49 2014
From: kazu at iij.ad.jp (Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=))
Date: Thu, 15 May 2014 12:43:49 +0900 (JST)
Subject: clang warnings
In-Reply-To: <20140514.133500.325427061403917868.kazu@iij.ad.jp>
References: <20140514.133500.325427061403917868.kazu@iij.ad.jp>
Message-ID: <20140515.124349.1477917024414076492.kazu@iij.ad.jp>

Hi,

Also I found that GHC 7.8.2 can compile yesod-bin but GHC 7.8.3
cannot:

----
[ 1 of 10] Compiling GhcBuild         ( GhcBuild.hs, dist/build/yesod/yesod-tmp/GhcBuild.o )

GhcBuild.hs:150:55:
    Couldn't match type ?Phase? with ?Bool -> Phase?
    Expected type: [(String, Maybe (Bool -> Phase))]
      Actual type: [(String, Maybe Phase)]
    In the second argument of ?partition?, namely ?srcs?
    In the expression: partition haskellish srcs
...
Failed to install yesod-bin-1.2.9.2
----

I have not time to investigate this by myself at this moment.

--Kazu

> Hi,
> 
> To test the coming GHC 7.8.3, I started to use the latest ghc-7.8
> branch. Unfortunately, on my Mac, I saw many warnings which are not
> displayed with GHC 7.8.2:
> 
> clang: warning: argument unused during compilation: '-fno-stack-protector'
> clang: warning: argument unused during compilation: '-D TABLES_NEXT_TO_CODE'
> clang: warning: argument unused during compilation: '-I test'
> clang: warning: argument unused during compilation: '-I dist/build/spec/spec-tmp'
> clang: warning: argument unused during compilation: '-I dist/build/spec/spec-tmp'
> clang: warning: argument unused during compilation: '-I dist/build/autogen'
> clang: warning: argument unused during compilation: '-I dist/build/spec/spec-tmp'
> 
> Is this a known issue?
> 
> --Kazu
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs

From johan.tibell at gmail.com  Thu May 15 10:01:28 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Thu, 15 May 2014 12:01:28 +0200
Subject: Adding atomic primops
In-Reply-To: <5371FD1E.4040600@gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
 <5371FD1E.4040600@gmail.com>
Message-ID: <CAK-tuPZ-aQGt+grRhJnVPyWCTugfZLO8owV_6LmJfkOQp_JP4w@mail.gmail.com>

I will update the wiki page (and later CmmSink) with the guarantees we
expect CallishMachOps to provide. We do need to pick what kind of guarantee
we want to provide. Options are here:
http://en.cppreference.com/w/cpp/atomic/memory_order

Do we want to have these CallishMachOps to imply a full memory fence CPU
instruction or some more relaxed ordering (e.g. only atomicity)?
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From hvriedel at gmail.com  Thu May 15 10:12:27 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Thu, 15 May 2014 12:12:27 +0200
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
Message-ID: <8761l7z6yc.fsf@gmail.com>

Hello GHC devs,

While I refactored the ghc code base to declare LANGUAGE pragmas
locally, rather than via -X-flags on the GHC commandline, I've noticed
there were a couple of places where NondecreasingIndentation grammar was used.

What's the current consensus on the use of NondecreasingIndentation? Is
its use still encouraged?

----

Moreover, I touched several files (over 300) while refactoring, would
that qualify as "working on this module" in the sense of

| While working on this module you are encouraged to remove it and detab
| the module (please do the detabbing in a separate patch).

or would that overreach wrt the original intent of the guideline quoted
above?

Cheers,
  hvr

From omeragacan at gmail.com  Thu May 15 14:15:22 2014
From: omeragacan at gmail.com (=?UTF-8?Q?=C3=96mer_Sinan_A=C4=9Facan?=)
Date: Thu, 15 May 2014 17:15:22 +0300
Subject: Questions about "time and space profiling for non-strict langs" paper
 and cost centre impl. of GHC
Message-ID: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>

Hi all,

I'm trying to understand the paper "Time and space profiling for
non-strict, higher-order functional languages"[1] and I'm hoping that
experienced GHC devs here could help me clarifying some points. Here's
my question:

In Figure 5, I don't understand why no costs are attributed to `app2`
rule(substitution rule). It looks like to me that this is the function
application rule so `A` cost should be attributed here, but in the
paper `A` cost is attributed in `app1` rule, which if I understand
correctly shows how function part of an application is evaluated.

I know about the "lexical scoping rule" explained in 2.4 and the cost
should be attributed to the cost center in the scope of lambda
definition instead of the cost center in "application site", but
Figure 5 still doesn't make sense to me.

To me it looks like that there should be two costs attributed in
application rules. First cost is "evaluation of the function"
part(which should be attributed in `app1` rule) and second is
"substitution" part, which should be attributed in `app2` rule but
according to the paper we only have the former cost, and the latter is
free(e.g. no costs are attributed in second rule).

It would be appreciated if someone could help me clarifying this. I'm
also looking for more recent papers about GHC's profiler
implementation. I'm especially interested profiling in multi-threaded
RTS.

Lastly, it'd be appreciated if someone could explain me two Bool
fields in `StgSCC` constructor of STG syntax.

Thanks!

UPDATE: I was reading the paper one more time before sending my
question and I found one more confusing part. In 4.1 it says "Lexical
scoping will subsume all the costs of applying `and1` to its call
sites..." but in 2.4 it says "Lexical scoping: Attribute the cost to
"fun", the cost centre which lexically encloses the abstraction." so
this two definitions of same thing is actually different. To me it
looks like the definition in 4.1 is wrong,, it should be "definition
site", not "call site". What am I missing here?

[1]: http://citeseerx.ist.psu.edu/viewdoc/download;jsessionid=36FE097056F4E03CCDD38B598158292E?doi=10.1.1.43.6277&rep=rep1&type=pdf

---
?mer Sinan A?acan
http://osa1.net

From scpmw at leeds.ac.uk  Thu May 15 15:34:54 2014
From: scpmw at leeds.ac.uk (Peter Wortmann)
Date: Thu, 15 May 2014 16:34:54 +0100
Subject: Questions about "time and space profiling for non-strict
 langs" paper and cost centre impl. of GHC
In-Reply-To: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
References: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
Message-ID: <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>


?mer Sinan A?acan wrote:
> To me it looks like that there should be two costs attributed in
> application rules. First cost is "evaluation of the function"
> part(which should be attributed in `app1` rule) and second is
> "substitution" part, which should be attributed in `app2` rule but
> according to the paper we only have the former cost, and the latter is
> free(e.g. no costs are attributed in second rule).

Well, sort of. "app1" and "app2" are just the two stages of applying a
function: First the function expression gets evaluated, then the actual
function gets called. In this case "A" stands for both costs, even if
they don't necessarily happen right after each other. As we are only
interested in the cost sum, this is the easiest way of doing it.

> It would be appreciated if someone could help me clarifying this. I'm
> also looking for more recent papers about GHC's profiler
> implementation. I'm especially interested profiling in multi-threaded
> RTS.

There have been no new papers that I know of, but we had a talk by Simon
Marlow[1] about improvements to cost-centre stacks, as well as a more
precise description of the modern semantics by Edward Z. Yang[2].

[1] https://www.youtube.com/watch?v=J0c4L-AURDQ
[2] http://blog.ezyang.com/2013/09/cost-semantics-for-stg-in-modern-ghc

> Lastly, it'd be appreciated if someone could explain me two Bool
> fields in `StgSCC` constructor of STG syntax.

Cost centres have two somewhat separate profiling mechanisms:
1. Cost gets attributed
2. Entry counts are counted

Sometimes it can be beneficial for the optimiser to separate the two.
For example, if we have something like

  case e of
    D -> scc<...> let f = e1 in e2

and we want to float the "f" binding outwards we would do:

  let f = scc<...> e1 in
    case e of
      D -> scc<...> e2

However, if we just implemented it like this, we would see the
entry-count to the cost-centre increase quite a bit, because now we are
also counting every entry to "f". This is why the compiler can mark the
duplicated tick as "non-counting".

> UPDATE: I was reading the paper one more time before sending my
> question and I found one more confusing part. In 4.1 it says "Lexical
> scoping will subsume all the costs of applying `and1` to its call
> sites..." but in 2.4 it says "Lexical scoping: Attribute the cost to
> "fun", the cost centre which lexically encloses the abstraction." so
> this two definitions of same thing is actually different. To me it
> looks like the definition in 4.1 is wrong,, it should be "definition
> site", not "call site". What am I missing here?

This is a special case introduced in 2.3.2: Top-level functions get the
cost-centre "SUB", which always makes them take the cost-centre of the
caller. You are right in that this doesn't quite match the "literal"
interpretation of lexical scoping.

Greetings,
  Peter Wortmann




From eir at cis.upenn.edu  Thu May 15 18:47:07 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Thu, 15 May 2014 14:47:07 -0400
Subject: Question about Roles and the AMP work
In-Reply-To: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>
References: <CAEs96n127V4O93meS8FBJzFhBrgakqxhWK5z9HYaWRZr5nWQsg@mail.gmail.com>
Message-ID: <A7073211-E7DF-4F41-9D41-4CD9AD39459E@cis.upenn.edu>

Yuck yuck yuck -- that's what I think.

Austin's analysis below agrees with mine. The error *is* reasonable, because if `coerce` worked in this scenario, a particularly dastardly (and very un-Lawful) Monad instance could break type safety.

Furthermore, I think it's absolutely necessary that Monad remain GND'able. It's a common idiom, and I use it myself quite frequently.

What to do? Here are some possible ways forward:
1) Implement the second half of roles (as in the original POPL "Generative type abstraction" paper).

This would make roles more first-class and allow us to say something like

> class Applicative m => Monad (m :: representational -> *) where ...

Under this scenario, all Monad instances would need to be over types with a representational argument, and then `coerce`ing join would be sound. (Actually, we would probably put the representational constraint as a superclass of Functor, but you get the idea.)

There are two downsides to this: a) implementing the much-more complicated role scenario, and b) a GADT could not be a Monad any more. I do actually think (b) would bite some users.

2) Don't put `join` in Monad.

Sorry for asking a perhaps-obvious question, but why put `join` in Monad at all? Are there examples where doing this would increase efficiency?

3) Something along the lines of Edward's suggestion. As he admits, his idea is still incomplete, but I think it would snag a lot of cases. If the current roles machinery works 95% of the time, the current machinery + built-in support for Edward's idea would get 99.5% of real use cases, I would think. It is a little "hackish" and somewhat unprincipled, but I think it would work in practice. I would even have GHC produce the `Representational` instances automatically.

Richard

On May 12, 2014, at 8:53 AM, Austin Seipp <austin at well-typed.com> wrote:

> Hello all,
> 
> While picking the AMP patch back up, it is almost ready to go, but I
> got quite a puzzling error when attempting to build 'haskeline' with
> the AMP changes. I don't seem to remember encountering this error
> before - but maybe my mind is hazy.
> 
> The error in question is this:
> 
> https://gist.github.com/thoughtpolice/6df4c70d8a8fb711b282
> 
> The TL;DR is that the move of `join` into base has caused a problem
> here. The error really speaks for itself: GND tries to derive an
> instance of `join` for DumbTerm, which would have the type
> 
>  join :: DumbTerm m (DumbTerm m a) -> DumbTerm m a
> 
> and be equivalent to join for StateT. But this can't hold: DumbTerm
> should unwrap directly to StateT (by newtype equality) and thus the
> third parameter to StateT in this case is `DumbTerm m a` if you expand
> the types - but because this argument is Nominal, it cannot unify with
> 'PosixT m', which is the actual definition of DumbTerm in the first
> place!
> 
> With a little thought, this error actually seems reasonable. But it
> puzzles me as to what we should do now. One thing we could do is just
> write the instances manually, of course. But that's a bit annoying.
> 
> Another alternative (and also unfortunate) change is to leave `join`
> out of Monad, in which case the GND mechanism is oblivious to it and
> does not need to worry about deriving these cases.
> 
> I am not sure how many packages depend on using GND to derive monads
> like StateT with Nominal arguments, but I imagine it is not totally
> insignificant and will essentially hurt a lot of people who may use
> it.
> 
> Richard, I'm particularly interested to hear what you think. This one
> sort of snuck up!
> 
> (NB: despite this, the AMP work is very close to landing in HEAD, at
> which point we can begin cleaning stuff up faster.)
> 
> -- 
> Regards,
> 
> Austin Seipp, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/


From carter.schonwald at gmail.com  Thu May 15 19:03:12 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Thu, 15 May 2014 15:03:12 -0400
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPZ-aQGt+grRhJnVPyWCTugfZLO8owV_6LmJfkOQp_JP4w@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
 <5371FD1E.4040600@gmail.com>
 <CAK-tuPZ-aQGt+grRhJnVPyWCTugfZLO8owV_6LmJfkOQp_JP4w@mail.gmail.com>
Message-ID: <CAHYVw0zBRJoUQxW-N_33ogaF-Coc31_YUuRNTwq=L-=jS8z1VA@mail.gmail.com>

Hey Johan,
on https://ghc.haskell.org/trac/ghc/ticket/7883 Ryan helped articulate what
he'd want wrt memory ordering semantics.

One point is that It might be totally valid and reasonable to provide
*both* variants, though if we only were to do one, the strong ordering
guarantees might be a better default, albeit your use case and others does
benefit from using the weakest / simplest primops possible,


On Thu, May 15, 2014 at 6:01 AM, Johan Tibell <johan.tibell at gmail.com>wrote:

> I will update the wiki page (and later CmmSink) with the guarantees we
> expect CallishMachOps to provide. We do need to pick what kind of guarantee
> we want to provide. Options are here:
> http://en.cppreference.com/w/cpp/atomic/memory_order
>
> Do we want to have these CallishMachOps to imply a full memory fence CPU
> instruction or some more relaxed ordering (e.g. only atomicity)?
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From fuuzetsu at fuuzetsu.co.uk  Fri May 16 13:33:25 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Fri, 16 May 2014 15:33:25 +0200
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <8761l7z6yc.fsf@gmail.com>
References: <8761l7z6yc.fsf@gmail.com>
Message-ID: <537613A5.5030004@fuuzetsu.co.uk>

On 05/15/2014 12:12 PM, Herbert Valerio Riedel wrote:
> Hello GHC devs,
> 
> While I refactored the ghc code base to declare LANGUAGE pragmas
> locally, rather than via -X-flags on the GHC commandline, I've noticed
> there were a couple of places where NondecreasingIndentation grammar was used.
> 
> What's the current consensus on the use of NondecreasingIndentation? Is
> its use still encouraged?
> 
> ----
> 
> Moreover, I touched several files (over 300) while refactoring, would
> that qualify as "working on this module" in the sense of
> 
> | While working on this module you are encouraged to remove it and detab
> | the module (please do the detabbing in a separate patch).
> 
> or would that overreach wrt the original intent of the guideline quoted
> above?
> 
> Cheers,
>   hvr
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 

Is there a reason behind not just detabbing (and removing trailing
whitespace) the whole tree in a patch? If you're going to detab in a
separate patch anyway, might as well do all of it once and for all.

-- 
Mateusz K.

From johan.tibell at gmail.com  Fri May 16 13:35:09 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Fri, 16 May 2014 15:35:09 +0200
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <537613A5.5030004@fuuzetsu.co.uk>
References: <8761l7z6yc.fsf@gmail.com> <537613A5.5030004@fuuzetsu.co.uk>
Message-ID: <CAK-tuPa2n7rKp+OWEUbxGrb2McydNQAs7NQs7+HKakSUKwmivg@mail.gmail.com>

On Fri, May 16, 2014 at 3:33 PM, Mateusz Kowalczyk
<fuuzetsu at fuuzetsu.co.uk>wrote:

> Is there a reason behind not just detabbing (and removing trailing
>  whitespace) the whole tree in a patch? If you're going to detab in a
> separate patch anyway, might as well do all of it once and for all.


There are two reasons:

 * Main reason: it will create lots of merge conflicts for people working
on the code base.
 * Minor reason: you will now be 'git blame'd for most lines of the source.
It's possible to have git ignore that, but it's a source of annoyance.
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From fuuzetsu at fuuzetsu.co.uk  Fri May 16 13:42:56 2014
From: fuuzetsu at fuuzetsu.co.uk (Mateusz Kowalczyk)
Date: Fri, 16 May 2014 15:42:56 +0200
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <CAK-tuPa2n7rKp+OWEUbxGrb2McydNQAs7NQs7+HKakSUKwmivg@mail.gmail.com>
References: <8761l7z6yc.fsf@gmail.com> <537613A5.5030004@fuuzetsu.co.uk>
 <CAK-tuPa2n7rKp+OWEUbxGrb2McydNQAs7NQs7+HKakSUKwmivg@mail.gmail.com>
Message-ID: <537615E0.4010108@fuuzetsu.co.uk>

On 05/16/2014 03:35 PM, Johan Tibell wrote:
> On Fri, May 16, 2014 at 3:33 PM, Mateusz Kowalczyk
> <fuuzetsu at fuuzetsu.co.uk>wrote:
> 
>> Is there a reason behind not just detabbing (and removing trailing
>>  whitespace) the whole tree in a patch? If you're going to detab in a
>> separate patch anyway, might as well do all of it once and for all.
> 
> 
> There are two reasons:
> 
>  * Main reason: it will create lots of merge conflicts for people working
> on the code base.

I suppose such action would be announced a week or so beforehand but
yes, I suppose.

>  * Minor reason: you will now be 'git blame'd for most lines of the source.
> It's possible to have git ignore that, but it's a source of annoyance.

It does not matter I feel because you're encouraged to detab in a
separate patch anyway so blaming will show that whether it's all done at
once or separately.


-- 
Mateusz K.

From johan.tibell at gmail.com  Fri May 16 13:46:22 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Fri, 16 May 2014 15:46:22 +0200
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <537615E0.4010108@fuuzetsu.co.uk>
References: <8761l7z6yc.fsf@gmail.com> <537613A5.5030004@fuuzetsu.co.uk>
 <CAK-tuPa2n7rKp+OWEUbxGrb2McydNQAs7NQs7+HKakSUKwmivg@mail.gmail.com>
 <537615E0.4010108@fuuzetsu.co.uk>
Message-ID: <CAK-tuPaAo0LvfdjoWZiYN-=6hmroEK6Z=sh4qzVkPkSjCy5eRA@mail.gmail.com>

On Fri, May 16, 2014 at 3:42 PM, Mateusz Kowalczyk
<fuuzetsu at fuuzetsu.co.uk>wrote:

> It does not matter I feel because you're encouraged to detab in a
> separate patch anyway so blaming will show that whether it's all done at
> once or separately.
>

It's indeed a minor reason. I think the thinking is that if you're changing
a file any way you 1) will touch a bunch of the same lines for other
reasons than detabbing and 2) you know something about the code so blaming
you is less bad. :)
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From omeragacan at gmail.com  Sun May 18 09:57:57 2014
From: omeragacan at gmail.com (=?UTF-8?Q?=C3=96mer_Sinan_A=C4=9Facan?=)
Date: Sun, 18 May 2014 12:57:57 +0300
Subject: Questions about "time and space profiling for non-strict langs"
 paper and cost centre impl. of GHC
In-Reply-To: <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>
References: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
 <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>
Message-ID: <CAMQQO3kqp1s4RqqN57xk3XZ_AGeOhhKeNgyj3n8_nFj7P9vCfA@mail.gmail.com>

Thanks Peter. Simon Marlow's talk was really interesting. After
reading the slides I read related GHC code and realized that
"cost-centre stack" and the stack trace printed using GHC.Stack is
same thing. `libraries/base/GHC/Stack.hsc` has this definition:

    currentCallStack :: IO [String]
    currentCallStack = ccsToStrings =<< getCurrentCCS ()

So actually string representation of cost-centre stack is returned
when current call stack is requested.

(off-topic: I'm wondering why an empty tuple is passed to `getCurrentCSS`?)

Now my first question is: Assuming stack traces are implemented as
explained by Simon Marlow in his talk and slides, can we say that
costs are always assigned to top cost-centre in the stack? So in case
of an allocation or when "tick counter" triggered, can I say that
always the top-most cost-centre in `rCCCs` register will be modified?
(then `inherited` costs would be calculated)

I'm asking this because I can't read the code generated for
cost-centre annotations(code generated for StgSCC code) because for
that I need to follow code generation through compilation to Cmm, but
I don't know anything about Cmm yet.

As far as I can understand, current implementation is different from
what's explained in Sansom and Jones, for example

* I can't see "SUB" cost-centre in list of "built-in cost-centres" in
`rts/Profiling.c`.
* We now have "stacks" which are assigned to RHS of bindings.

I tried reading output of -ddump-stg but generated STG is confusing.
For example, this function:

    fib :: Integer -> Integer
    fib 0 = 1
    fib 1 = 1
    fib n = fib (n - 1) + fib (n - 2)

is annotated with `CCS_DONT_CARE`. Why is that? Also, I can see
`_push_` and `_tick_`(what's this?) instructions placed in generated
STG but no `_call_` instructions. There is also something like `CCCS`
in generated STG but I have no ideas about this.

So in short I'm trying to understand how cost-centre related
annotations are generated and how are they used. Any paper/source
code/blog post suggestions would be very appreciated. As far as I can
see current implementation is different than ones explained in
slides/papers.

Thanks,

---
?mer Sinan A?acan
http://osa1.net

From scpmw at leeds.ac.uk  Sun May 18 12:46:19 2014
From: scpmw at leeds.ac.uk (Peter Wortmann)
Date: Sun, 18 May 2014 13:46:19 +0100
Subject: Questions about "time and space profiling for non-strict
 langs" paper and cost centre impl. of GHC
In-Reply-To: <CAMQQO3kqp1s4RqqN57xk3XZ_AGeOhhKeNgyj3n8_nFj7P9vCfA@mail.gmail.com>
References: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
 <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>
 <CAMQQO3kqp1s4RqqN57xk3XZ_AGeOhhKeNgyj3n8_nFj7P9vCfA@mail.gmail.com>
Message-ID: <1400417179.15600.10.camel@cslin101.csunix.comp.leeds.ac.uk>


?mer Sinan A?acan wrote: 
> (off-topic: I'm wondering why an empty tuple is passed to `getCurrentCSS`?)

See the comment on getCurrentCCS# in compiler/prelude/primops.txt.pp -
it's a token to prevent GHC optimisations from floating the primop up
(which obviously might change the call stack).

> Now my first question is: Assuming stack traces are implemented as
> explained by Simon Marlow in his talk and slides, can we say that
> costs are always assigned to top cost-centre in the stack?

Cost is attributed to the current cost-centre *stack*. So "a/f" !=
"b/f".

> As far as I can understand, current implementation is different from
> what's explained in Sansom and Jones, for example

The papers actually never introduce cost-centre stacks, as far as I
know. It's generally better to check Sansom's PhD thesis, the GHC source
code or the other sources I mentioned. There's been quite a bit of work
on this...

> * I can't see "SUB" cost-centre in list of "built-in cost-centres" in
> `rts/Profiling.c`.

As I understand it, the "SUB" cost centre refers to situations where the
cost-centre stack does *not* get updated on function entry. So it never
exists physically.

> is annotated with `CCS_DONT_CARE`. Why is that?

That is an annotation on lambdas, and refers to what cost-centre stack
their allocation cost should be counted on. As top-level functions and
static constructors are allocated statically, they don't count for the
heap profile, therefore "don't care".

See the definition of GenStgRhs in compiler/stgSyn/StgSyn.lhs.

> Also, I can see `_push_` and `_tick_`(what's this?) instructions
> placed in generated STG but no `_call_` instructions.

This is what actually manages cost-centre stack - "_push_" pushes the
given cost-centre on top of the cost centre stack, whereas "_tick" just
increases entry count. These two aspects have slightly different
properties as far as transformations are concerned, and therefore often
end up getting separated during optimisations.

Not sure what "_call_" is suppose to be. What's the context?

> There is also something like `CCCS` in generated STG but I have no
> ideas about this.

That's simply "current cost-centre stack". I like to think that the hint
of silliness was intentional.

> So in short I'm trying to understand how cost-centre related
> annotations are generated and how are they used.

Sure. Better place for quick queries might be #ghc on FreeNode though -
my nick is petermw.

Greetings,
  Peter Wortmann



From omeragacan at gmail.com  Sun May 18 14:20:46 2014
From: omeragacan at gmail.com (=?UTF-8?Q?=C3=96mer_Sinan_A=C4=9Facan?=)
Date: Sun, 18 May 2014 17:20:46 +0300
Subject: Questions about "time and space profiling for non-strict langs"
 paper and cost centre impl. of GHC
In-Reply-To: <1400417179.15600.10.camel@cslin101.csunix.comp.leeds.ac.uk>
References: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
 <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>
 <CAMQQO3kqp1s4RqqN57xk3XZ_AGeOhhKeNgyj3n8_nFj7P9vCfA@mail.gmail.com>
 <1400417179.15600.10.camel@cslin101.csunix.comp.leeds.ac.uk>
Message-ID: <CAMQQO3n4UxWmK_M=G96UsPLmQAYWE-upZx+R7+y7TeQ6EJHmXQ@mail.gmail.com>

Thanks again for the answer.

> Not sure what "_call_" is suppose to be. What's the context?

In Simon Marlow's slides, stack traces are implemented in terms of
"call" and "push" operations. I guess `push` in STG syntax is stands
for "push" operation explained in the slides but as far as I can see
"call" is missing in generated STG.

>> There is also something like `CCCS` in generated STG but I have no
>> ideas about this.
>
> That's simply "current cost-centre stack". I like to think that the hint
> of silliness was intentional.

Yes, but I'm wondering what does that syntax in STG mean
operationally? For example, here's some part of generated STG:

    let {
      sat_s2OT [Occ=Once] :: GHC.Integer.Type.Integer
      [LclId, Str=DmdType] =
          CCCS GHC.Integer.Type.S#! [0];
    }

What does "CCCS" stand for here? I guess in long term it'd be best for
me to learn Cmm and see the generated code for this syntax to
understand what does it really do.(assuming Cmm has better
documentation that STG :) )

> Sure. Better place for quick queries might be #ghc on FreeNode though -
> my nick is petermw.

Great, my nick is osa1 and I'll be pinging you for short questions.
Thanks again!

---
?mer Sinan A?acan
http://osa1.net

From hvriedel at gmail.com  Sun May 18 15:54:42 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Sun, 18 May 2014 17:54:42 +0200
Subject: Non-exhaustive pattern-match warning in code-example from
 "Dependently Typed Programming with Singletons"
Message-ID: <87zjifrsjh.fsf@gmail.com>

Hello *,

I've been experimenting with the code from the "Dependently Typed
Programming with Singletons" paper[1] from the following is derived (modulo some
irrelevant renamings):

    {-# LANGUAGE TypeOperators, DataKinds, GADTs, TypeFamilies #-}

    module CheckedList where
     
    data Nat = Z | S Nat
     
    data SNat n where
        SZ :: SNat Z
        SS :: SNat n -> SNat (S n)
     
    infixr 5 :-
    data List l t where
        Nil  :: List Z t
        (:-) :: t -> List l t -> List (S l) t
     
    type family n1 :< n2 where
        m     :< Z      = False
        Z     :< (S m)  = True
        (S n) :< (S m)  = n :< m
     
    index :: (i :< l) ~ True => List l t -> SNat i -> t
    index (x :- _)    SZ    = x
    index (_ :- xs)  (SS i) = index xs i

The problem, though, is that with the code above GHC 7.8.2 emits a
warning for the `index` function:

,----
| Pattern match(es) are non-exhaustive
| In an equation for ?index?: Patterns not matched: Nil _
`----

So I would have expected to workaround that by explicitly wrapping the
length-phantom with the promoted `S` type-constructor, like so

    index :: (i :< S l) ~ True => List (S l) t -> SNat i -> t
    index (x :- _)    SZ    = x
    index (_ :- xs)  (SS i) = index xs i

While this would probably have silenced the pattern-match warning, I now
get a type-checking error I can't seem to get rid of:

,----
| Could not deduce (l1 ~ 'S l0) from the context ((i :< 'S l) ~ 'True)
|   bound by the type signature for
|              index :: (i :< 'S l) ~ 'True => List ('S l) t -> SNat i -> t
|
| or from ('S l ~ 'S l1)
|   bound by a pattern with constructor
|              :- :: forall t (l :: Nat). t -> List l t -> List ('S l) t,
|            in an equation for ?index?
|
| or from (i ~ 'S n)
|   bound by a pattern with constructor
|              SS :: forall (n :: Nat). SNat n -> SNat ('S n),
|            in an equation for ?index?
|
|   ?l1? is a rigid type variable bound by
|        a pattern with constructor
|          :- :: forall t (l :: Nat). t -> List l t -> List ('S l) t,
|        in an equation for ?index?
|
| Expected type: List ('S l0) t
|   Actual type: List l1 t
| Relevant bindings include
|   xs :: List l1 t
|
| In the first argument of ?index?, namely ?xs?
| In the expression: index xs i
`----

Is there a way to tweak the code so that GHC doesn't think there's a
non-exhaustive pattern-match?

Cheers,
  HVR

 [1]: http://www.cis.upenn.edu/~eir/papers/2012/singletons/paper.pdf

From hvriedel at gmail.com  Sun May 18 18:31:02 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Sun, 18 May 2014 20:31:02 +0200
Subject: TypeLits vs. Z|Sn naturals
Message-ID: <87lhtzrlax.fsf@gnu.org>

Hello again,

...while experimenting with TypeLits I stumbled over the following
simple case failing to type-check with GHC 7.8.2:

    {-# LANGUAGE DataKinds, GADTs #-}

    data List l t where
        Nil  :: List 0 t
        Cons :: { lstHead :: t, lstTail ::  List l t } -> List (l+1) t

with the error message

,----
| Could not deduce (l1 ~ l) from the context ((l + 1) ~ (l1 + 1))
|   bound by a pattern with constructor
|              Cons :: forall t (l :: Nat). t -> List l t -> List (l + 1) t,
|            in an equation for ?lstTail?
|
|   ?l1? is a rigid type variable bound by
|        a pattern with constructor
|          Cons :: forall t (l :: Nat). t -> List l t -> List (l + 1) t,
|        in an equation for ?lstTail?
|
|   ?l? is a rigid type variable bound by
|       the type signature for lstTail :: List (l + 1) t -> List l t
|
| Expected type: List l t
|   Actual type: List l1 t
| Relevant bindings include
|   lstTail :: List l1 t
|   lstTail :: List (l + 1) t -> List l t
|
| In the expression: lstTail
| In an equation for ?lstTail?:
|     lstTail (Cons {lstTail = lstTail}) = lstTail
`----

While the code below happily type-checks:

    {-# LANGUAGE DataKinds, GADTs #-}

    data Nat = Z | S Nat
     
    data List l t where
        Nil  :: List Z t
        Cons :: { lstHead :: t, lstTail :: List n t } -> List (S n) t

Is this a known issue with the TypeLit solver?

Cheers,
  hvr

From carter.schonwald at gmail.com  Sun May 18 18:50:02 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Sun, 18 May 2014 14:50:02 -0400
Subject: TypeLits vs. Z|Sn naturals
In-Reply-To: <87lhtzrlax.fsf@gnu.org>
References: <87lhtzrlax.fsf@gnu.org>
Message-ID: <CAHYVw0xU+JPCs+WOhYLAMNz2bqbjX7ZwrHg0LJaFAwi_FLOZsw@mail.gmail.com>

Type lits currently can't do anyyyy abstract reasoning. It can only decide
if two concrete literals are equal or reduce an expression made from
concrete literals to a new concrete literal.

For that reason I'm using peano style Nats in my own lib engineering.

On Sunday, May 18, 2014, Herbert Valerio Riedel <hvriedel at gmail.com> wrote:

> Hello again,
>
> ...while experimenting with TypeLits I stumbled over the following
> simple case failing to type-check with GHC 7.8.2:
>
>     {-# LANGUAGE DataKinds, GADTs #-}
>
>     data List l t where
>         Nil  :: List 0 t
>         Cons :: { lstHead :: t, lstTail ::  List l t } -> List (l+1) t
>
> with the error message
>
> ,----
> | Could not deduce (l1 ~ l) from the context ((l + 1) ~ (l1 + 1))
> |   bound by a pattern with constructor
> |              Cons :: forall t (l :: Nat). t -> List l t -> List (l + 1)
> t,
> |            in an equation for ?lstTail?
> |
> |   ?l1? is a rigid type variable bound by
> |        a pattern with constructor
> |          Cons :: forall t (l :: Nat). t -> List l t -> List (l + 1) t,
> |        in an equation for ?lstTail?
> |
> |   ?l? is a rigid type variable bound by
> |       the type signature for lstTail :: List (l + 1) t -> List l t
> |
> | Expected type: List l t
> |   Actual type: List l1 t
> | Relevant bindings include
> |   lstTail :: List l1 t
> |   lstTail :: List (l + 1) t -> List l t
> |
> | In the expression: lstTail
> | In an equation for ?lstTail?:
> |     lstTail (Cons {lstTail = lstTail}) = lstTail
> `----
>
> While the code below happily type-checks:
>
>     {-# LANGUAGE DataKinds, GADTs #-}
>
>     data Nat = Z | S Nat
>
>     data List l t where
>         Nil  :: List Z t
>         Cons :: { lstHead :: t, lstTail :: List n t } -> List (S n) t
>
> Is this a known issue with the TypeLit solver?
>
> Cheers,
>   hvr
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org <javascript:;>
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From mail at joachim-breitner.de  Sun May 18 18:54:20 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Sun, 18 May 2014 20:54:20 +0200
Subject: Validate failures
In-Reply-To: <1399147687.19761.1.camel@kirk>
References: <1399147687.19761.1.camel@kirk>
Message-ID: <1400439260.2221.40.camel@kirk>

Hi,

a small reminder to the masteres of the stable branch: The ghc-7.8
branch currently still does not validate on Travis:

Am Samstag, den 03.05.2014, 22:08 +0200 schrieb Joachim Breitner:
> ghc-7.8:
> 
> Unexpected failures:
>    annotations/should_compile/th  annth_compunits [bad exit code] (normal)
>    annotations/should_compile/th  annth_make [bad stdout] (normal)
> 
> Please merge 0fe726829d468badf830dd82bc296832d709733b into ghc-7.8 (this
> annotates the tests to require have_dynamic())

Thanks,
Joachim

-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From scpmw at leeds.ac.uk  Sun May 18 19:30:45 2014
From: scpmw at leeds.ac.uk (Peter Wortmann)
Date: Sun, 18 May 2014 20:30:45 +0100
Subject: Questions about "time and space profiling for non-strict langs"
 paper and cost centre impl. of GHC
In-Reply-To: <CAMQQO3n4UxWmK_M=G96UsPLmQAYWE-upZx+R7+y7TeQ6EJHmXQ@mail.gmail.com>
References: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
 <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>
 <CAMQQO3kqp1s4RqqN57xk3XZ_AGeOhhKeNgyj3n8_nFj7P9vCfA@mail.gmail.com>
 <1400417179.15600.10.camel@cslin101.csunix.comp.leeds.ac.uk>,
 <CAMQQO3n4UxWmK_M=G96UsPLmQAYWE-upZx+R7+y7TeQ6EJHmXQ@mail.gmail.com>
Message-ID: <B963733A3B7F9845815FF33B96FFDCBA029345EE980E@HERMES8.ds.leeds.ac.uk>


> In Simon Marlow's slides, stack traces are implemented in terms of
> "call" and "push" operations. I guess `push` in STG syntax is stands
> for "push" operation explained in the slides but as far as I can see
> "call" is missing in generated STG.

There seems to be some confusion here - "push" is a language construct, whereas "call" is a function in Simon's language interpreter, just like "eval".

> What does "CCCS" stand for here?

Notice that it is an annotation on a constructor. It says what cost-centre stack to put the heap cost under, just like with lambdas. In your example the value is not statically allocated, therefore we put it into the "current cost-centre" instead of "don't care".

This might be a pretty obvious piece of information, but that's essentially what Stg is - prepared Core with lots of annotations to facilitate code generation. Try -ddump-prep if you want something more sensible to look at.

Greetings,
  Peter Wortmann

From eir at cis.upenn.edu  Sun May 18 23:45:37 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Sun, 18 May 2014 19:45:37 -0400
Subject: Non-exhaustive pattern-match warning in code-example from
 "Dependently Typed Programming with Singletons"
In-Reply-To: <87zjifrsjh.fsf@gmail.com>
References: <87zjifrsjh.fsf@gmail.com>
Message-ID: <4F8A8A8E-A0B3-4EAD-9054-56B34826B926@cis.upenn.edu>

The short answer here (to "Is there a way to avoid the non-exhaustive pattern-match warning?") is "no, not in general". See #3927 (https://ghc.haskell.org/trac/ghc/ticket/3927).

And, after some playing around, I couldn't find a way to do this in your specific example, either. I will say that I've found that GHC sometimes has more luck with constructions like this (over Boolean-valued type families):

> data n1 :< n2 where
>   LTZ :: Z :< (S n)
>   LTS :: m :< n -> (S m) :< (S n)
> 
> class LTSupport n1 n2 => n1 :<? n2 where
>   ltProof :: n1 :< n2
> 
> type family LTSupport n1 n2 where
>   LTSupport Z     n     = (() :: Constraint)
>   LTSupport (S m) (S n) = m :<? n
> 
> instance Z :<? (S n) where
>   ltProof = LTZ
> 
> instance (m :<? n) => (S m) :<? (S n) where
>   ltProof = LTS ltProof
> 
> index :: (i :<? l) => List l t -> SNat i -> t
> index (x :- _)    SZ    = x
> index (_ :- xs)  (SS i) = index xs i
> 


But, that didn't help your particular problem.

This is precisely why `singletons` exports the `bugInGHC` function. When I write code like yours, I include

> index _ _ = bugInGHC

as the last line of `index`. This suppresses the warning but is painful. I always do make sure that GHC indeed rejects non-wildcard patterns before doing this, but it would be great if we didn't have to do it at all!

Richard

On May 18, 2014, at 11:54 AM, Herbert Valerio Riedel <hvriedel at gmail.com> wrote:

> Hello *,
> 
> I've been experimenting with the code from the "Dependently Typed
> Programming with Singletons" paper[1] from the following is derived (modulo some
> irrelevant renamings):
> 
>    {-# LANGUAGE TypeOperators, DataKinds, GADTs, TypeFamilies #-}
> 
>    module CheckedList where
> 
>    data Nat = Z | S Nat
> 
>    data SNat n where
>        SZ :: SNat Z
>        SS :: SNat n -> SNat (S n)
> 
>    infixr 5 :-
>    data List l t where
>        Nil  :: List Z t
>        (:-) :: t -> List l t -> List (S l) t
> 
>    type family n1 :< n2 where
>        m     :< Z      = False
>        Z     :< (S m)  = True
>        (S n) :< (S m)  = n :< m
> 
>    index :: (i :< l) ~ True => List l t -> SNat i -> t
>    index (x :- _)    SZ    = x
>    index (_ :- xs)  (SS i) = index xs i
> 
> The problem, though, is that with the code above GHC 7.8.2 emits a
> warning for the `index` function:
> 
> ,----
> | Pattern match(es) are non-exhaustive
> | In an equation for ?index?: Patterns not matched: Nil _
> `----
> 
> So I would have expected to workaround that by explicitly wrapping the
> length-phantom with the promoted `S` type-constructor, like so
> 
>    index :: (i :< S l) ~ True => List (S l) t -> SNat i -> t
>    index (x :- _)    SZ    = x
>    index (_ :- xs)  (SS i) = index xs i
> 
> While this would probably have silenced the pattern-match warning, I now
> get a type-checking error I can't seem to get rid of:
> 
> ,----
> | Could not deduce (l1 ~ 'S l0) from the context ((i :< 'S l) ~ 'True)
> |   bound by the type signature for
> |              index :: (i :< 'S l) ~ 'True => List ('S l) t -> SNat i -> t
> |
> | or from ('S l ~ 'S l1)
> |   bound by a pattern with constructor
> |              :- :: forall t (l :: Nat). t -> List l t -> List ('S l) t,
> |            in an equation for ?index?
> |
> | or from (i ~ 'S n)
> |   bound by a pattern with constructor
> |              SS :: forall (n :: Nat). SNat n -> SNat ('S n),
> |            in an equation for ?index?
> |
> |   ?l1? is a rigid type variable bound by
> |        a pattern with constructor
> |          :- :: forall t (l :: Nat). t -> List l t -> List ('S l) t,
> |        in an equation for ?index?
> |
> | Expected type: List ('S l0) t
> |   Actual type: List l1 t
> | Relevant bindings include
> |   xs :: List l1 t
> |
> | In the first argument of ?index?, namely ?xs?
> | In the expression: index xs i
> `----
> 
> Is there a way to tweak the code so that GHC doesn't think there's a
> non-exhaustive pattern-match?
> 
> Cheers,
>  HVR
> 
> [1]: http://www.cis.upenn.edu/~eir/papers/2012/singletons/paper.pdf
> 


From eir at cis.upenn.edu  Sun May 18 23:48:02 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Sun, 18 May 2014 19:48:02 -0400
Subject: TypeLits vs. Z|Sn naturals
In-Reply-To: <CAHYVw0xU+JPCs+WOhYLAMNz2bqbjX7ZwrHg0LJaFAwi_FLOZsw@mail.gmail.com>
References: <87lhtzrlax.fsf@gnu.org>
 <CAHYVw0xU+JPCs+WOhYLAMNz2bqbjX7ZwrHg0LJaFAwi_FLOZsw@mail.gmail.com>
Message-ID: <184C53D5-613C-4907-B0C5-945CA3E5CB83@cis.upenn.edu>

Yes, the TypeLits solver is still in early stages, but there's active work being done to improve the situation. For better concrete syntax with Peano naturals, I recommend the following construction:

> type family U n where   -- U stands for "unary"
>   U 0 = Z
>   U n = S (n - 1)

It works well in practice for writing literals.

Richard

On May 18, 2014, at 2:50 PM, Carter Schonwald <carter.schonwald at gmail.com> wrote:

> Type lits currently can't do anyyyy abstract reasoning. It can only decide if two concrete literals are equal or reduce an expression made from concrete literals to a new concrete literal. 
> 
> For that reason I'm using peano style Nats in my own lib engineering. 
> 
> On Sunday, May 18, 2014, Herbert Valerio Riedel <hvriedel at gmail.com> wrote:
> Hello again,
> 
> ...while experimenting with TypeLits I stumbled over the following
> simple case failing to type-check with GHC 7.8.2:
> 
>     {-# LANGUAGE DataKinds, GADTs #-}
> 
>     data List l t where
>         Nil  :: List 0 t
>         Cons :: { lstHead :: t, lstTail ::  List l t } -> List (l+1) t
> 
> with the error message
> 
> ,----
> | Could not deduce (l1 ~ l) from the context ((l + 1) ~ (l1 + 1))
> |   bound by a pattern with constructor
> |              Cons :: forall t (l :: Nat). t -> List l t -> List (l + 1) t,
> |            in an equation for ?lstTail?
> |
> |   ?l1? is a rigid type variable bound by
> |        a pattern with constructor
> |          Cons :: forall t (l :: Nat). t -> List l t -> List (l + 1) t,
> |        in an equation for ?lstTail?
> |
> |   ?l? is a rigid type variable bound by
> |       the type signature for lstTail :: List (l + 1) t -> List l t
> |
> | Expected type: List l t
> |   Actual type: List l1 t
> | Relevant bindings include
> |   lstTail :: List l1 t
> |   lstTail :: List (l + 1) t -> List l t
> |
> | In the expression: lstTail
> | In an equation for ?lstTail?:
> |     lstTail (Cons {lstTail = lstTail}) = lstTail
> `----
> 
> While the code below happily type-checks:
> 
>     {-# LANGUAGE DataKinds, GADTs #-}
> 
>     data Nat = Z | S Nat
> 
>     data List l t where
>         Nil  :: List Z t
>         Cons :: { lstHead :: t, lstTail :: List n t } -> List (S n) t
> 
> Is this a known issue with the TypeLit solver?
> 
> Cheers,
>   hvr
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs

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From chak at cse.unsw.edu.au  Mon May 19 00:47:20 2014
From: chak at cse.unsw.edu.au (Manuel M T Chakravarty)
Date: Mon, 19 May 2014 10:47:20 +1000
Subject: Status updates
In-Reply-To: <CAEs96n1QpXr5L8MDMre_7rJ8i-OZYjSGv=wQvPt8JFbr7TyBMg@mail.gmail.com>
References: <CAEs96n1QpXr5L8MDMre_7rJ8i-OZYjSGv=wQvPt8JFbr7TyBMg@mail.gmail.com>
Message-ID: <02BE87E2-CE30-4292-9EDE-9AA04BEB490A@cse.unsw.edu.au>

Austin,

Could we please make sure to include this bug for 7.8.3?

  https://ghc.haskell.org/trac/ghc/ticket/9078

The ticket already includes a patch that solves the problem for us.

As remarked by Levent, this bug will probably affect all EDSL that use Andy?s StableName-based observable sharing trick.

Cheers,
Manuel

Austin Seipp <austin at well-typed.com>:
> Hello all,
> 
> It has been another slow week here, and there wasn't a lot I touched
> in the tree this week. The primary highlights:
> 
> * The AMP battle rages on! It turns out the addition of `join` to
> `Monad` has had some subtle implications for GND/Roles. See here for
> more: https://www.haskell.org/pipermail/ghc-devs/2014-May/004964.html
> 
> * Simon is still reviewing the ORF work, as far as I know. Hopefully
> it will Land Real Soon Now.
> 
> * Patches! Lots of them! I'm reviewing and merging several of them
> right now. In particular, all the ones slated for 7.8.3 are up for
> grabs[1] by me right now, but I do need to double-check some of them
> e.g. on Windows, to make sure nothing breaks.
> 
> * Many branches have been deleted. Something like 20-30 of them, I
> think. Yay! Sorry for the spam to the commits list too, but it was a
> necessary evil.
> 
> * I'm working away at some of the bugs. #7602 is building right now,
> with some nice improvements. That will go into the 7.8.3 branch, so OS
> X users will get a big performance gain, yay!
> 
> * Another bug: #8736. I had a patch for this, but this one is tricky
> to fix because when we load object files, we don't actually know if
> they're static or dynamic. This is encoded in the interface file, but
> there are some tricky semantics about what to do in some cases of
> (legitimately) needing to re-read interface files that are a bit
> subtle. I'll be trying to revive my patch for this today.
> 
> Other than that, there really hasn't been a lot to mention. Please, do
> get down on reviewing some bugs and helping fix them![1] I'm more than
> willing to help in any way I can.
> 
> I'd also like some feedback: what do people think about the current
> list? Are there any of you readers who see one *you* think is truly
> critical? Maybe we can get some input to help narrow the scope if
> needed.
> 
> Thanks!
> 
> [1] https://ghc.haskell.org/trac/ghc/query?status=infoneeded&status=merge&status=new&status=patch&group=status&milestone=7.8.3
> 
> -- 
> Regards,
> 
> Austin Seipp, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From eir at cis.upenn.edu  Mon May 19 01:23:41 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Sun, 18 May 2014 21:23:41 -0400
Subject: Non-exhaustive pattern-match warning in code-example from
 "Dependently Typed Programming with Singletons"
In-Reply-To: <4F8A8A8E-A0B3-4EAD-9054-56B34826B926@cis.upenn.edu>
References: <87zjifrsjh.fsf@gmail.com>
 <4F8A8A8E-A0B3-4EAD-9054-56B34826B926@cis.upenn.edu>
Message-ID: <B135CA7F-5B81-40CA-8B76-DB7A7D3E7460@cis.upenn.edu>

A little more tinkering got this working, with the definitions in my earlier email, below (with ScopedTypeVariables):

index :: forall i n t. (i :<? S n) => List (S n) t -> SNat i -> t
index (x :- _)    SZ    = x
index (_ :- xs)  (SS (i :: SNat i')) = case ltProof :: i' :< n of
                            LTZ -> index xs i
                            LTS _ -> index xs i

I offer no technique that can generalize this process, though...

Richard

On May 18, 2014, at 7:45 PM, Richard Eisenberg <eir at cis.upenn.edu> wrote:

> The short answer here (to "Is there a way to avoid the non-exhaustive pattern-match warning?") is "no, not in general". See #3927 (https://ghc.haskell.org/trac/ghc/ticket/3927).
> 
> And, after some playing around, I couldn't find a way to do this in your specific example, either. I will say that I've found that GHC sometimes has more luck with constructions like this (over Boolean-valued type families):
> 
>> data n1 :< n2 where
>>  LTZ :: Z :< (S n)
>>  LTS :: m :< n -> (S m) :< (S n)
>> 
>> class LTSupport n1 n2 => n1 :<? n2 where
>>  ltProof :: n1 :< n2
>> 
>> type family LTSupport n1 n2 where
>>  LTSupport Z     n     = (() :: Constraint)
>>  LTSupport (S m) (S n) = m :<? n
>> 
>> instance Z :<? (S n) where
>>  ltProof = LTZ
>> 
>> instance (m :<? n) => (S m) :<? (S n) where
>>  ltProof = LTS ltProof
>> 
>> index :: (i :<? l) => List l t -> SNat i -> t
>> index (x :- _)    SZ    = x
>> index (_ :- xs)  (SS i) = index xs i
>> 
> 
> 
> But, that didn't help your particular problem.
> 
> This is precisely why `singletons` exports the `bugInGHC` function. When I write code like yours, I include
> 
>> index _ _ = bugInGHC
> 
> as the last line of `index`. This suppresses the warning but is painful. I always do make sure that GHC indeed rejects non-wildcard patterns before doing this, but it would be great if we didn't have to do it at all!
> 
> Richard
> 
> On May 18, 2014, at 11:54 AM, Herbert Valerio Riedel <hvriedel at gmail.com> wrote:
> 
>> Hello *,
>> 
>> I've been experimenting with the code from the "Dependently Typed
>> Programming with Singletons" paper[1] from the following is derived (modulo some
>> irrelevant renamings):
>> 
>>   {-# LANGUAGE TypeOperators, DataKinds, GADTs, TypeFamilies #-}
>> 
>>   module CheckedList where
>> 
>>   data Nat = Z | S Nat
>> 
>>   data SNat n where
>>       SZ :: SNat Z
>>       SS :: SNat n -> SNat (S n)
>> 
>>   infixr 5 :-
>>   data List l t where
>>       Nil  :: List Z t
>>       (:-) :: t -> List l t -> List (S l) t
>> 
>>   type family n1 :< n2 where
>>       m     :< Z      = False
>>       Z     :< (S m)  = True
>>       (S n) :< (S m)  = n :< m
>> 
>>   index :: (i :< l) ~ True => List l t -> SNat i -> t
>>   index (x :- _)    SZ    = x
>>   index (_ :- xs)  (SS i) = index xs i
>> 
>> The problem, though, is that with the code above GHC 7.8.2 emits a
>> warning for the `index` function:
>> 
>> ,----
>> | Pattern match(es) are non-exhaustive
>> | In an equation for ?index?: Patterns not matched: Nil _
>> `----
>> 
>> So I would have expected to workaround that by explicitly wrapping the
>> length-phantom with the promoted `S` type-constructor, like so
>> 
>>   index :: (i :< S l) ~ True => List (S l) t -> SNat i -> t
>>   index (x :- _)    SZ    = x
>>   index (_ :- xs)  (SS i) = index xs i
>> 
>> While this would probably have silenced the pattern-match warning, I now
>> get a type-checking error I can't seem to get rid of:
>> 
>> ,----
>> | Could not deduce (l1 ~ 'S l0) from the context ((i :< 'S l) ~ 'True)
>> |   bound by the type signature for
>> |              index :: (i :< 'S l) ~ 'True => List ('S l) t -> SNat i -> t
>> |
>> | or from ('S l ~ 'S l1)
>> |   bound by a pattern with constructor
>> |              :- :: forall t (l :: Nat). t -> List l t -> List ('S l) t,
>> |            in an equation for ?index?
>> |
>> | or from (i ~ 'S n)
>> |   bound by a pattern with constructor
>> |              SS :: forall (n :: Nat). SNat n -> SNat ('S n),
>> |            in an equation for ?index?
>> |
>> |   ?l1? is a rigid type variable bound by
>> |        a pattern with constructor
>> |          :- :: forall t (l :: Nat). t -> List l t -> List ('S l) t,
>> |        in an equation for ?index?
>> |
>> | Expected type: List ('S l0) t
>> |   Actual type: List l1 t
>> | Relevant bindings include
>> |   xs :: List l1 t
>> |
>> | In the first argument of ?index?, namely ?xs?
>> | In the expression: index xs i
>> `----
>> 
>> Is there a way to tweak the code so that GHC doesn't think there's a
>> non-exhaustive pattern-match?
>> 
>> Cheers,
>> HVR
>> 
>> [1]: http://www.cis.upenn.edu/~eir/papers/2012/singletons/paper.pdf
>> 
> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
> 


From simonpj at microsoft.com  Mon May 19 07:32:39 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Mon, 19 May 2014 07:32:39 +0000
Subject: [commit: ghc] master: Extract derived constants from nm output
 for various OSes differently. (3df1c51)
In-Reply-To: <20140519051039.123E62406D@ghc.haskell.org>
References: <20140519051039.123E62406D@ghc.haskell.org>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF10398504@DB3PRD3001MB020.064d.mgd.msft.net>

Christian (and all ghc-devs)

Thank you working so hard on this.   I really appreciate it.

But can I beg you to add a Note to explain the issue, and to refer directly to Trac #8783. The ticket has a string of forty-four comments, so presumably it's not a simple, obvious typo.  What I fear is that in 5 yrs time someone will say "oh, there's a simpler way of doing this" and will un-do all your good work.  

Everyone: I'm know I get repetitive about this, but please always think about whether your change will seem as limpidly clear and obvious in five years time as it does now.  ALWAYS add a reference to the ticket, unless you are simply fixing a totally stupid typo that nobody could possibly un-fix.  

(Stuff in the commit message is not enough, because you don't see it when you are looking at the source code.  I enthusiastically encourage you to use the "Note" style, which you will see littered all over the compiler these days.)

Pretty much any bug-fix is fixing something that wasn't obvious to the original author!

Thank you all for making GHC so good.

Simon

| -----Original Message-----
| From: ghc-commits [mailto:ghc-commits-bounces at haskell.org] On Behalf Of
| git at git.haskell.org
| Sent: 19 May 2014 06:11
| To: ghc-commits at haskell.org
| Subject: [commit: ghc] master: Extract derived constants from nm output
| for various OSes differently. (3df1c51)
| 
| Repository : ssh://git at git.haskell.org/ghc
| 
| On branch  : master
| Link       :
| http://ghc.haskell.org/trac/ghc/changeset/3df1c5109a6bd2a522717e524c10d8
| 42d4cd8ab8/ghc
| 
| >---------------------------------------------------------------
| 
| commit 3df1c5109a6bd2a522717e524c10d842d4cd8ab8
| Author: Christian Maeder <Christian.Maeder at dfki.de>
| Date:   Thu Apr 3 10:00:07 2014 +0200
| 
|     Extract derived constants from nm output for various OSes
| differently.
| 
|     Fixes #8783.
| 
|     In order to avoid querying the nm version that does not work on Mac
| OS X
|     we use the "nm -P" output that is supposed to produce (more
| portable)
|     POSIX output and works on all tested OSes (MinGW, Mac OS X, Solaris
| and
|     Linux using GNU nm) although slightly different (as documented). The
| "nm
|     -P" output is actually only needed to recognize the output of a non-
| GNU
|     Solaris nm (all other OSes produce sane outut using "nm" only).
| 
|     Signed-off-by: Austin Seipp <austin at well-typed.com>
| 
| 
| >---------------------------------------------------------------
| 
| 3df1c5109a6bd2a522717e524c10d842d4cd8ab8
|  utils/deriveConstants/DeriveConstants.hs | 37 +++++++++++++------------
| -------
|  1 file changed, 15 insertions(+), 22 deletions(-)
| 
| diff --git a/utils/deriveConstants/DeriveConstants.hs
| b/utils/deriveConstants/DeriveConstants.hs
| index 8c943f0..6bfce24 100644
| --- a/utils/deriveConstants/DeriveConstants.hs
| +++ b/utils/deriveConstants/DeriveConstants.hs
| @@ -641,7 +641,7 @@ getWanted verbose tmpdir gccProgram gccFlags
| nmProgram
|               oFile = tmpdir </> "tmp.o"
|           writeFile cFile cStuff
|           execute verbose gccProgram (gccFlags ++ ["-c", cFile, "-o",
| oFile])
| -         xs <- readProcess nmProgram [oFile] ""
| +         xs <- readProcess nmProgram ["-P", oFile] ""
|           let ls = lines xs
|               ms = map parseNmLine ls
|               m = Map.fromList $ catMaybes ms @@ -710,28 +710,21 @@
| getWanted verbose tmpdir gccProgram gccFlags nmProgram
|            doWanted (ClosurePayloadMacro {}) = []
|            doWanted (FieldTypeGcptrMacro {}) = []
| 
| -          -- parseNmLine parses nm output that looks like
| -          -- "0000000b C derivedConstantMAX_Vanilla_REG"
| +          -- parseNmLine parses "nm -P" output that looks like
| +          -- "derivedConstantMAX_Vanilla_REG C 0000000b 0000000b" (GNU
| nm)
| +          -- "_derivedConstantMAX_Vanilla_REG C b 0" (Mac OS X)
| +          -- "_derivedConstantMAX_Vanilla_REG C 000000b" (MinGW)
| +          -- "derivedConstantMAX_Vanilla_REG D        1        b"
| (Solaris)
|            -- and returns ("MAX_Vanilla_REG", 11)
| -          parseNmLine xs0 = case break (' ' ==) xs0 of
| -                            (x1, ' ' : xs1) ->
| -                                case break (' ' ==) xs1 of
| -                                (x2, ' ' : x3) ->
| -                                    case readHex x1 of
| -                                    [(size, "")] ->
| -                                        case x2 of
| -                                        "C" ->
| -                                            let x3' = case x3 of
| -                                                      '_' : rest ->
| rest
| -                                                      _          -> x3
| -                                            in case stripPrefix prefix
| x3' of
| -                                               Just name ->
| -                                                   Just (name, size)
| -                                               _ -> Nothing
| -                                        _ -> Nothing
| -                                    _ -> Nothing
| -                                _ -> Nothing
| -                            _ -> Nothing
| +          parseNmLine line
| +              = case words line of
| +                ('_' : n) : "C" : s : _ -> mkP n s
| +                n : "C" : s : _ -> mkP n s
| +                [n, "D", _, s] -> mkP n s
| +                _ -> Nothing
| +              where mkP r s = case (stripPrefix prefix r, readHex s) of
| +                        (Just name, [(size, "")]) -> Just (name, size)
| +                        _ -> Nothing
| 
|            -- If an Int value is larger than 2^28 or smaller
|            -- than -2^28, then fail.
| 
| _______________________________________________
| ghc-commits mailing list
| ghc-commits at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-commits

From edskodevries at gmail.com  Mon May 19 08:37:11 2014
From: edskodevries at gmail.com (Edsko de Vries)
Date: Mon, 19 May 2014 09:37:11 +0100
Subject: Non-exhaustive pattern-match warning in code-example from
 "Dependently Typed Programming with Singletons"
In-Reply-To: <4F8A8A8E-A0B3-4EAD-9054-56B34826B926@cis.upenn.edu>
References: <87zjifrsjh.fsf@gmail.com>
 <4F8A8A8E-A0B3-4EAD-9054-56B34826B926@cis.upenn.edu>
Message-ID: <CAETJ90QOa--fJkd6g8J6Es+3tX0QukxD88Lu11a9fddAOorvXA@mail.gmail.com>

Yes, this is a nuisance, esp because ghc can most of the time see perfectly
well that if you *do* write down the "missing" cases that they are
inaccessible. There are a bunch of open tickets about it. I too use
Richard's trick; I tend to use

    foo _ _ = error "inaccessible"

Fixing ghc so that it can always see that clauses are not actually missing
might be difficult; perhaps the solution adopted in Agda would be easier,
where you would write

    foo (SomeConstructor _) (SomeOtherConstructor _) ()

(where SomeConstructor and SomeOtherConstructor are the "missing" cases) to
indicate that "this is inaccessible pattern".

-E


On Mon, May 19, 2014 at 12:45 AM, Richard Eisenberg <eir at cis.upenn.edu>wrote:

> The short answer here (to "Is there a way to avoid the non-exhaustive
> pattern-match warning?") is "no, not in general". See #3927 (
> https://ghc.haskell.org/trac/ghc/ticket/3927).
>
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From ggreif at gmail.com  Mon May 19 20:55:51 2014
From: ggreif at gmail.com (Gabor Greif)
Date: Mon, 19 May 2014 22:55:51 +0200
Subject: classP recently deleted from TH.Lib
In-Reply-To: <CAK-hX0mYg54p7BN=qj2S1EbUGxTs80TSH0sLyxY1zxdXaCYE5Q@mail.gmail.com>
References: <CAK-hX0kjdskKrt5moLv7_qunHz-wh4FgewP7sQvZnP8-MdH05w@mail.gmail.com>
 <CAK-tuPatrEidNpuKV9i6+rnczM4R_x-2EG2aogh6uU5hqSn0Dg@mail.gmail.com>
 <0D4004C1-224C-4404-8A30-8BD25899BEF4@cis.upenn.edu>
 <CAHZrzdqisoadDk2guBGkWEvy0PcAzeL-nXnTfU9M-wMDEXdUZg@mail.gmail.com>
 <CAK-hX0mYg54p7BN=qj2S1EbUGxTs80TSH0sLyxY1zxdXaCYE5Q@mail.gmail.com>
Message-ID: <CAK-hX0k687CN_FnTxm0zi=jG=x1Ep-kxMwvphVFPwBko9uwZkw@mail.gmail.com>

All,

just pushed 4117551 and 135489d.

Any feedback appreciated.

Cheers,

    Gabor


On 5/14/14, Gabor Greif <ggreif at gmail.com> wrote:
> Alrighty, this is what I have now. If you think this is ok, I'll go on
> re-implementing equalP too and commit. Then we can bikeshed about the
> deprecation message :-)
>
> diff --git a/libraries/template-haskell/Language/Haskell/TH/Lib.hs
> b/libraries/template-haskell/Language/Haskell/TH/Lib.hs
> index 49baa96..08235ba 100644
> --- a/libraries/template-haskell/Language/Haskell/TH/Lib.hs
> +++ b/libraries/template-haskell/Language/Haskell/TH/Lib.hs
> @@ -526,6 +526,13 @@ sigT t k
>  equalityT :: TypeQ
>  equalityT = return EqualityT
>
> +{-# DEPRECATED classP "Constraint constructors are just type
> constructors, frob this code as 'constraintT'." #-}
> +classP :: Name -> [Q Type] -> Q Pred
> +classP cla tys
> +  = do
> +      tysl <- sequence tys
> +      return (foldl AppT (ConT cla) tysl)
> +
>  promotedT :: Name -> TypeQ
>  promotedT = return . PromotedT
>
>
> Cheers,
>
>     Gabor
>
>
> On 5/14/14, Gregory Collins <greg at gregorycollins.net> wrote:
>> On Mon, May 12, 2014 at 4:58 PM, Richard Eisenberg
>> <eir at cis.upenn.edu>wrote:
>>
>>> We could, of course, just leave the functions there with new
>>> implementations, but that feels like it could accumulate legacy
>>> functions
>>> over time.
>>
>>
>> I think the ultimate goal of removing the function was not unwise of you,
>> but the right thing to do here would be to write a reimplementation, mark
>> it as {-# DEPRECATED #-}, and give a timetable for its future removal.
>> This
>> gives users time to adjust and minimizes breakage.
>>
>> G
>> --
>> Gregory Collins <greg at gregorycollins.net>
>>
>

From johan.tibell at gmail.com  Tue May 20 15:01:29 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Tue, 20 May 2014 17:01:29 +0200
Subject: Adding atomic primops
In-Reply-To: <CAHYVw0zBRJoUQxW-N_33ogaF-Coc31_YUuRNTwq=L-=jS8z1VA@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
 <5371FD1E.4040600@gmail.com>
 <CAK-tuPZ-aQGt+grRhJnVPyWCTugfZLO8owV_6LmJfkOQp_JP4w@mail.gmail.com>
 <CAHYVw0zBRJoUQxW-N_33ogaF-Coc31_YUuRNTwq=L-=jS8z1VA@mail.gmail.com>
Message-ID: <CAK-tuPar+KuoM+Ah75QBr-P-55EC4V+xvhVKE961-+UpXpibsw@mail.gmail.com>

After some discussion with Simon, I will go ahead and try to implement
fully sequentially consistent versions of these primops. We can add other
versions that take the consistency model as an argument later, if needed.


On Thu, May 15, 2014 at 9:03 PM, Carter Schonwald <
carter.schonwald at gmail.com> wrote:

> Hey Johan,
> on https://ghc.haskell.org/trac/ghc/ticket/7883 Ryan helped articulate
> what he'd want wrt memory ordering semantics.
>
> One point is that It might be totally valid and reasonable to provide
> *both* variants, though if we only were to do one, the strong ordering
> guarantees might be a better default, albeit your use case and others does
> benefit from using the weakest / simplest primops possible,
>
>
> On Thu, May 15, 2014 at 6:01 AM, Johan Tibell <johan.tibell at gmail.com>wrote:
>
>> I will update the wiki page (and later CmmSink) with the guarantees we
>> expect CallishMachOps to provide. We do need to pick what kind of guarantee
>> we want to provide. Options are here:
>> http://en.cppreference.com/w/cpp/atomic/memory_order
>>
>> Do we want to have these CallishMachOps to imply a full memory fence CPU
>> instruction or some more relaxed ordering (e.g. only atomicity)?
>>
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>
>
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From johan.tibell at gmail.com  Tue May 20 15:04:35 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Tue, 20 May 2014 17:04:35 +0200
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPar+KuoM+Ah75QBr-P-55EC4V+xvhVKE961-+UpXpibsw@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
 <5371FD1E.4040600@gmail.com>
 <CAK-tuPZ-aQGt+grRhJnVPyWCTugfZLO8owV_6LmJfkOQp_JP4w@mail.gmail.com>
 <CAHYVw0zBRJoUQxW-N_33ogaF-Coc31_YUuRNTwq=L-=jS8z1VA@mail.gmail.com>
 <CAK-tuPar+KuoM+Ah75QBr-P-55EC4V+xvhVKE961-+UpXpibsw@mail.gmail.com>
Message-ID: <CAK-tuPYtRhA3XP880afm9+HWRhdycxPfD93S7AsAFLK_JLyr3Q@mail.gmail.com>

Sequentially consistent also corresponds to, according to the LLVM docs:
"the C++0x/C1x memory_order_seq_cst, Java volatile, and the gcc-compatible
__sync_* builtins", so we'll be in good company.


On Tue, May 20, 2014 at 5:01 PM, Johan Tibell <johan.tibell at gmail.com>wrote:

> After some discussion with Simon, I will go ahead and try to implement
> fully sequentially consistent versions of these primops. We can add other
> versions that take the consistency model as an argument later, if needed.
>
>
> On Thu, May 15, 2014 at 9:03 PM, Carter Schonwald <
> carter.schonwald at gmail.com> wrote:
>
>> Hey Johan,
>> on https://ghc.haskell.org/trac/ghc/ticket/7883 Ryan helped articulate
>> what he'd want wrt memory ordering semantics.
>>
>> One point is that It might be totally valid and reasonable to provide
>> *both* variants, though if we only were to do one, the strong ordering
>> guarantees might be a better default, albeit your use case and others does
>> benefit from using the weakest / simplest primops possible,
>>
>>
>> On Thu, May 15, 2014 at 6:01 AM, Johan Tibell <johan.tibell at gmail.com>wrote:
>>
>>> I will update the wiki page (and later CmmSink) with the guarantees we
>>> expect CallishMachOps to provide. We do need to pick what kind of guarantee
>>> we want to provide. Options are here:
>>> http://en.cppreference.com/w/cpp/atomic/memory_order
>>>
>>> Do we want to have these CallishMachOps to imply a full memory fence CPU
>>> instruction or some more relaxed ordering (e.g. only atomicity)?
>>>
>>> _______________________________________________
>>> ghc-devs mailing list
>>> ghc-devs at haskell.org
>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>
>>>
>>
>
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From rrnewton at gmail.com  Tue May 20 16:12:48 2014
From: rrnewton at gmail.com (Ryan Newton)
Date: Tue, 20 May 2014 12:12:48 -0400
Subject: Adding atomic primops
In-Reply-To: <CAK-tuPYtRhA3XP880afm9+HWRhdycxPfD93S7AsAFLK_JLyr3Q@mail.gmail.com>
References: <CAK-tuPa3PM+h53WY3aO9f7WkYrv1zV__2TpRtoYk07F_XrmwJw@mail.gmail.com>
 <1399199455-sup-5590@sabre>
 <CAK-tuPYcDfHb6G4E2bQ5vH-jFNo+LMLp7KOw-Fw-eikr4P1caA@mail.gmail.com>
 <5371FD1E.4040600@gmail.com>
 <CAK-tuPZ-aQGt+grRhJnVPyWCTugfZLO8owV_6LmJfkOQp_JP4w@mail.gmail.com>
 <CAHYVw0zBRJoUQxW-N_33ogaF-Coc31_YUuRNTwq=L-=jS8z1VA@mail.gmail.com>
 <CAK-tuPar+KuoM+Ah75QBr-P-55EC4V+xvhVKE961-+UpXpibsw@mail.gmail.com>
 <CAK-tuPYtRhA3XP880afm9+HWRhdycxPfD93S7AsAFLK_JLyr3Q@mail.gmail.com>
Message-ID: <CACYs5AYDVJ5LUNriw3nqnHchu6EPZJD+kJiJfhgCdm=vuFrZNw@mail.gmail.com>

Yes, that's exactly what I'd like to see as well.  Also, we must confess
that most worldwide GHC cycles are currently spent on x86.  Arm will surely
become more important over time.  But what's right for x86 is probably
right for us for the near/medium term.




On Tue, May 20, 2014 at 11:04 AM, Johan Tibell <johan.tibell at gmail.com>wrote:

> Sequentially consistent also corresponds to, according to the LLVM docs:
> "the C++0x/C1x memory_order_seq_cst, Java volatile, and the gcc-compatible
> __sync_* builtins", so we'll be in good company.
>
>
> On Tue, May 20, 2014 at 5:01 PM, Johan Tibell <johan.tibell at gmail.com>wrote:
>
>> After some discussion with Simon, I will go ahead and try to implement
>> fully sequentially consistent versions of these primops. We can add other
>> versions that take the consistency model as an argument later, if needed.
>>
>>
>> On Thu, May 15, 2014 at 9:03 PM, Carter Schonwald <
>> carter.schonwald at gmail.com> wrote:
>>
>>> Hey Johan,
>>> on https://ghc.haskell.org/trac/ghc/ticket/7883 Ryan helped articulate
>>> what he'd want wrt memory ordering semantics.
>>>
>>> One point is that It might be totally valid and reasonable to provide
>>> *both* variants, though if we only were to do one, the strong ordering
>>> guarantees might be a better default, albeit your use case and others does
>>> benefit from using the weakest / simplest primops possible,
>>>
>>>
>>> On Thu, May 15, 2014 at 6:01 AM, Johan Tibell <johan.tibell at gmail.com>wrote:
>>>
>>>> I will update the wiki page (and later CmmSink) with the guarantees we
>>>> expect CallishMachOps to provide. We do need to pick what kind of guarantee
>>>> we want to provide. Options are here:
>>>> http://en.cppreference.com/w/cpp/atomic/memory_order
>>>>
>>>> Do we want to have these CallishMachOps to imply a full memory fence
>>>> CPU instruction or some more relaxed ordering (e.g. only atomicity)?
>>>>
>>>> _______________________________________________
>>>> ghc-devs mailing list
>>>> ghc-devs at haskell.org
>>>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>>>
>>>>
>>>
>>
>
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From marlowsd at gmail.com  Wed May 21 08:07:06 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Wed, 21 May 2014 09:07:06 +0100
Subject: Questions about "time and space profiling for non-strict langs"
 paper and cost centre impl. of GHC
In-Reply-To: <CAMQQO3n4UxWmK_M=G96UsPLmQAYWE-upZx+R7+y7TeQ6EJHmXQ@mail.gmail.com>
References: <CAMQQO3mM3qG022vP+V7gWawtb7gRiJpuEM8-4h89-dDM1pfDhQ@mail.gmail.com>
 <1400168094.3624.21.camel@cslin101.csunix.comp.leeds.ac.uk>
 <CAMQQO3kqp1s4RqqN57xk3XZ_AGeOhhKeNgyj3n8_nFj7P9vCfA@mail.gmail.com>
 <1400417179.15600.10.camel@cslin101.csunix.comp.leeds.ac.uk>
 <CAMQQO3n4UxWmK_M=G96UsPLmQAYWE-upZx+R7+y7TeQ6EJHmXQ@mail.gmail.com>
Message-ID: <537C5EAA.8040708@gmail.com>

On 18/05/2014 15:20, ?mer Sinan A?acan wrote:
> Thanks again for the answer.
>
>> Not sure what "_call_" is suppose to be. What's the context?
>
> In Simon Marlow's slides, stack traces are implemented in terms of
> "call" and "push" operations. I guess `push` in STG syntax is stands
> for "push" operation explained in the slides but as far as I can see
> "call" is missing in generated STG.

"call" is implemented by enterFunCCS() in rts/Profiling.c.

I'm afraid there's no good high-level description of how profiling works 
in GHC currently.  My plan was to flesh out the semantics and then write 
it up properly, but since leaving MSR I've had less time to work on it, 
so unfortunately we have an implementation but no semantics.  Which is a 
sad state of affairs, I agree.  All I can say is that a lot of 
experimentation went into the current implementation, so I'm fairly 
confident it behaves sensibly in most situations.

Cheers,
Simon


>>> There is also something like `CCCS` in generated STG but I have no
>>> ideas about this.
>>
>> That's simply "current cost-centre stack". I like to think that the hint
>> of silliness was intentional.
>
> Yes, but I'm wondering what does that syntax in STG mean
> operationally? For example, here's some part of generated STG:
>
>      let {
>        sat_s2OT [Occ=Once] :: GHC.Integer.Type.Integer
>        [LclId, Str=DmdType] =
>            CCCS GHC.Integer.Type.S#! [0];
>      }
>
> What does "CCCS" stand for here? I guess in long term it'd be best for
> me to learn Cmm and see the generated code for this syntax to
> understand what does it really do.(assuming Cmm has better
> documentation that STG :) )
>
>> Sure. Better place for quick queries might be #ghc on FreeNode though -
>> my nick is petermw.
>
> Great, my nick is osa1 and I'll be pinging you for short questions.
> Thanks again!
>
> ---
> ?mer Sinan A?acan
> http://osa1.net
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From berthold at Mathematik.Uni-Marburg.de  Wed May 21 15:33:29 2014
From: berthold at Mathematik.Uni-Marburg.de (Jost Berthold)
Date: Wed, 21 May 2014 17:33:29 +0200
Subject: Call for Contributions: Haskell Implementors' Workshop 2014
Message-ID: <537CC749.7040708@mathematik.uni-marburg.de>

                         Call for Contributions
                ACM SIGPLAN Haskell Implementors' Workshop

     http://haskell.org/haskellwiki/HaskellImplementorsWorkshop/2014
                 Gothenburg, Sweden, 06 September, 2014

                     Co-located with ICFP 2014
                http://www.icfpconference.org/icfp2014/

Important dates
---------------
Proposal Deadline:  Monday, 14 July, 2014 (midnight, anywhere on earth)
Notification:               21 July  2014
Workshop:           Saturday, 6 September 2014

The 6th Haskell Implementors' Workshop is to be held alongside ICFP
2014 this year in Gothenburg. It is a forum for people involved in the
design and development of Haskell implementations, tools, libraries,
and supporting infrastructure, to share their work and discuss future
directions and collaborations with others.

Talks and/or demos are proposed by submitting an abstract, and
selected by a small program committee. There will be no published
proceedings; the workshop will be informal and interactive, with a
flexible timetable and plenty of room for ad-hoc discussion, demos,
and impromptu short talks.

Attendance figures clearly reflect the growth of the Haskell user
community and a constant interest in implementation aspects.

Scope and target audience
-------------------------

It is important to distinguish the Haskell Implementors' Workshop from
the Haskell Symposium which is also co-located with ICFP 2014. The
Haskell Symposium is for the publication of Haskell-related research. In
contrast, the Haskell Implementors' Workshop will have no proceedings --
although we will aim to make talk videos, slides and presented data
available with the consent of the speakers.

In the Haskell Implementors' Workshop, we hope to study the underlying
technology. We want to bring together anyone interested in the
nitty-gritty details behind turning plain-text source code into a
deployed product. Having said that, members of the wider Haskell
community are more than welcome to attend the workshop -- we need your
feedback to keep the Haskell ecosystem thriving.

The scope covers any of the following topics. There may be some topics
that people feel we've missed, so by all means submit a proposal even if
it doesn't fit exactly into one of these buckets:

   * Compilation techniques
   * Language features and extensions
   * Type system implementation
   * Concurrency and parallelism: language design and implementation
   * Performance, optimisation and benchmarking
   * Virtual machines and run-time systems
   * Libraries and tools for development or deployment

Talks
-----

At this stage we would like to invite proposals from potential speakers
for talks and demonstrations. We are aiming for 20 minute talks with 10
minutes for questions and changeovers. We want to hear from people
writing compilers, tools, or libraries, people with cool ideas for
directions in which we should take the platform, proposals for new
features to be implemented, and half-baked crazy ideas. Please submit a
talk title and abstract of no more than 300 words.

Submissions should be made via EasyChair. The website is:
   https://www.easychair.org/conferences/?conf=hiw2014

If you don't have an account you can create one here:
   https://www.easychair.org/account/signup.cgi

Because the submission is an abstract only, please click the "abstract
only" button when you make your submission.  There is no need to
attach a separate file.

We will also have a lightning talks session which will be organised on
the day. These talks will be 5-10 minutes, depending on available time.
Suggested topics for lightning talks are to present a single idea, a
work-in-progress project, a problem to intrigue and perplex Haskell
implementors, or simply to ask for feedback and collaborators.

Organisers
----------

   * Jost Berthold (co-chair)     (University of Copenhagen)
   * Kevin Hammond                (University of St.Andrews)
   * Gabriele Keller              (University of New South Wales)
   * Paul Liu                     (Intel Labs)
   * Rita Loogen                  (Philipps-Universitat Marburg)
   * Geoffrey Mainland (co-chair) (Drexel University, Philadelphia)
   * Carter Schonwald             (WellPosed Ltd)

Contact
-------

   * hiw2014 at easychair.org
   * Jost Berthold <berthold at di.ku.dk>
   * Geoffrey Mainland <mainland at cs.drexel.edu>

From d at davidterei.com  Fri May 23 06:42:34 2014
From: d at davidterei.com (David Terei)
Date: Thu, 22 May 2014 23:42:34 -0700
Subject: [GHC] #4213: LLVM: Add support for TNTC to LLVM compiler suite
In-Reply-To: <CACHt1w8gAKVJ5P1N+wXzEH-GmEuJctZDju5NdceJ7qzhwRYfug@mail.gmail.com>
References: <045.baf39684c1ad6f53c42a607914cc93f4@haskell.org>
 <060.63c15b7c92d4fb6a73fd9514d927a0fe@haskell.org>
 <CACHt1w8gAKVJ5P1N+wXzEH-GmEuJctZDju5NdceJ7qzhwRYfug@mail.gmail.com>
Message-ID: <CACHt1w8A1=t_LVH1YwErd7PRbjisROTeAbdp6YzK5ZnTBb+Z2Q@mail.gmail.com>

Firstly, its cool that LLVM has added this. It seems we could indeed
implement TNTC with it. However based my quick understanding we couldnt
implement it in a wag compatible with the current design.

I believe the LLVM feature only allows us to place data at the very start
of the function, after the label not before it. And your meant to ensure
the very first instruction of the function is a jump that jumps over the
data. We could use this, Simon Marlow and I discussed such a design in the
past. But it's a change from the current scheme so the NCG would also need
to change and it isn't clear if it would be as good as our current design.

The other issue is that fixing TNTC doesn't eliminate the mangler. We use
it for a few different reasons now. I can think of at least 3 I believe:
TNTC, SIMD, and Windows.

As for moving to the LLVM api. No, I think that isn't a great idea. I'm not
convinced its will gain much compilation speed improvement. This is
testable vy measuring how much time is actually spent invoking the LLVM
binaries and how much time they spend serializing and parsing files.

Given we need to go to an intermediary file of assembly for the mangler...

Using the API also creates a GHC build time dependency on LLVM. Right now
we avoid that which has advantages.

On 22/05/2014 10:12 pm, "GHC" <ghc-devs at haskell.org> wrote:
>
> #4213: LLVM: Add support for TNTC to LLVM compiler suite
> -------------------------------------+------------------------------------
>         Reporter:  dterei            |            Owner:  dterei
>             Type:  feature request   |           Status:  new
>         Priority:  low               |        Milestone:  7.6.2
>        Component:  Compiler (LLVM)   |          Version:  6.13
>       Resolution:                    |         Keywords:
> Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
>  Type of failure:  None/Unknown      |       Difficulty:  Unknown
>        Test Case:                    |       Blocked By:
>         Blocking:                    |  Related Tickets:
> -------------------------------------+------------------------------------
>
> Comment (by awson):
>
>  I'm extremely sorry for a kind of OT. There is another LLVM/infotable
>  related ticket, which I don't know how to solve
>  [https://ghc.haskell.org/trac/ghc/ticket/8974 without the mangler]. Could
>  you, please, look into it and check if we can fix that without mangler
or,
>  perhaps, understand what a feature we could ask LLVM people to introduce.
>
> --
> Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4213#comment:14>
> GHC <http://www.haskell.org/ghc/>
> The Glasgow Haskell Compiler
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From stegeman at gmail.com  Fri May 23 13:40:07 2014
From: stegeman at gmail.com (Luite Stegeman)
Date: Fri, 23 May 2014 15:40:07 +0200
Subject: Weak reference semantics - why does a dead weak ref keep its value
 alive?
Message-ID: <CALqQuojaYKJmY8iTorC83E5kHXJQkCSphH_fNkEpxN0=LkZXhA@mail.gmail.com>

Hi all,

I'm reviewing and improving my weak references implementation for GHCJS,
among other things to make sure that the profiling/stack trace support,
currently being implemented by ?mer Sinan A?acan as a GSoC project has the
correct heap information to work with.

JavaScript does not have weak references with 'observable deadness', so we
have to walk the heap data structures from time to time to test
reachability, schedule finalizers and break the weak links. I'm trying to
find a design that keeps GHC's semantics, but where JavaScript's own
garbage collector can get rid of as much data as possible, even before we
run our own heap scan.

Now I ran into the following peculiarity, from the semantics
(System.Mem.Weak documentation):

A heap object is reachable if:
- It is a member of the root set.
- It is directly pointed to by a reachable object, other than a weak
pointer object.
- It is a weak pointer object whose key is reachable.
- It is the value or finalizer of a weak pointer object whose key is
reachable.

This says that even if nothing has a reference to a weak pointer, as long
as there are references to its key, the value is considered to be
reachable. For example in this program

import Data.Maybe
import System.Mem.Weak
import System.Mem
import Control.Exception
import System.IO
import Control.Concurrent

gc = performGC >> threadDelay 1000000

main = do
  hSetBuffering stdout NoBuffering
  k <- evaluate "k"
  v <- evaluate "v"
  addFinalizer v (putStrLn "fv")
  w <- evaluate =<< mkWeak k v (Just $ putStrLn "fkv")
  putStrLn =<< fmap (fromMaybe ".") (deRefWeak w)
  addFinalizer w (putStrLn "fw")
  gc
  putStrLn k
  gc

there is no way to reach 'v' after `w` has been finalized, but still it's
kept alive. This agrees with the semantics in the documentation, but what's
the reason for this?

luite
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From ezyang at mit.edu  Fri May 23 23:02:43 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Fri, 23 May 2014 16:02:43 -0700
Subject: Weak reference semantics - why does a dead weak ref keep its
 value alive?
In-Reply-To: <CALqQuojaYKJmY8iTorC83E5kHXJQkCSphH_fNkEpxN0=LkZXhA@mail.gmail.com>
References: <CALqQuojaYKJmY8iTorC83E5kHXJQkCSphH_fNkEpxN0=LkZXhA@mail.gmail.com>
Message-ID: <1400884742-sup-5880@sabre>

Hello Luite,

GHC's separation of weak references into keys and values is a
generalization which can be useful to avoid space leaks; the motivation
for the design is described in "Stretching the storage manager: weak
pointers and stable names in Haskell".

In particular, the variant of weak reference you suggest is the
/ephemeron/ semantics in Hayes.  Their reachability rule is:

    The value field of an ephemeron is reachable if both (a) the
    ephemeron (weak pointer object) is reachable, and (b) the key is
    reachable.

The paper goes into more detail why our semantics might be preferred,
but it boils down to:

(1) Our semantics is simpler,
(2) In this semantics, it is not clear when to run finalizers (if
you garbage collect the weak pointer objects early, you won't be able
to run their finalizers!)
(3) These semantics can be simulated

Cheers,
Edward

Excerpts from Luite Stegeman's message of 2014-05-23 06:40:07 -0700:
> Hi all,
> 
> I'm reviewing and improving my weak references implementation for GHCJS,
> among other things to make sure that the profiling/stack trace support,
> currently being implemented by ?mer Sinan A?acan as a GSoC project has the
> correct heap information to work with.
> 
> JavaScript does not have weak references with 'observable deadness', so we
> have to walk the heap data structures from time to time to test
> reachability, schedule finalizers and break the weak links. I'm trying to
> find a design that keeps GHC's semantics, but where JavaScript's own
> garbage collector can get rid of as much data as possible, even before we
> run our own heap scan.
> 
> Now I ran into the following peculiarity, from the semantics
> (System.Mem.Weak documentation):
> 
> A heap object is reachable if:
> - It is a member of the root set.
> - It is directly pointed to by a reachable object, other than a weak
> pointer object.
> - It is a weak pointer object whose key is reachable.
> - It is the value or finalizer of a weak pointer object whose key is
> reachable.
> 
> This says that even if nothing has a reference to a weak pointer, as long
> as there are references to its key, the value is considered to be
> reachable. For example in this program
> 
> import Data.Maybe
> import System.Mem.Weak
> import System.Mem
> import Control.Exception
> import System.IO
> import Control.Concurrent
> 
> gc = performGC >> threadDelay 1000000
> 
> main = do
>   hSetBuffering stdout NoBuffering
>   k <- evaluate "k"
>   v <- evaluate "v"
>   addFinalizer v (putStrLn "fv")
>   w <- evaluate =<< mkWeak k v (Just $ putStrLn "fkv")
>   putStrLn =<< fmap (fromMaybe ".") (deRefWeak w)
>   addFinalizer w (putStrLn "fw")
>   gc
>   putStrLn k
>   gc
> 
> there is no way to reach 'v' after `w` has been finalized, but still it's
> kept alive. This agrees with the semantics in the documentation, but what's
> the reason for this?
> 
> luite

From stegeman at gmail.com  Sat May 24 00:11:30 2014
From: stegeman at gmail.com (Luite Stegeman)
Date: Sat, 24 May 2014 02:11:30 +0200
Subject: Weak reference semantics - why does a dead weak ref keep its
 value alive?
In-Reply-To: <1400884742-sup-5880@sabre>
References: <CALqQuojaYKJmY8iTorC83E5kHXJQkCSphH_fNkEpxN0=LkZXhA@mail.gmail.com>
 <1400884742-sup-5880@sabre>
Message-ID: <CALqQuohfK0uPg-AhhujGSRV8G4z+pD=HFHHbHQ6c0Ek6JnDyfQ@mail.gmail.com>

>
>
> In particular, the variant of weak reference you suggest is the
> /ephemeron/ semantics in Hayes.  Their reachability rule is:
>
>     The value field of an ephemeron is reachable if both (a) the
>     ephemeron (weak pointer object) is reachable, and (b) the key is
>     reachable.
>
>
Actually it's not the same, since I think the finalizer should still be run
if the weak pointer object is unreachable (and it should run when the key
becomes unreachable).

The implementation would indeed need to keep some reference to the key and
finalizer around after the weak pointer becomes unreachable, perhaps on
some weak pointers list, but the same goes for GHC's semantics. The only
difference is that the value (which might in turn make a whole bunch of
other data reachable) would not have to be retained.

I haven't been able to think of any issues with considering the value
unreachable here, so I'm still puzzled as to why GHC's semantics would be
preferable. It doesn't look like it would complicate implementation too
much either.

luite
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From gergo at erdi.hu  Sun May 25 06:50:21 2014
From: gergo at erdi.hu (Dr. ERDI Gergo)
Date: Sun, 25 May 2014 14:50:21 +0800 (SGT)
Subject: Haddock repo doesn't accept pushes?
Message-ID: <alpine.DEB.2.10.1405251444160.3411@galaxy>

Hi,

I've just tried pushing a commit to the Haddock repo on git.haskell.org:

14:45:36 [cactus at galaxy haddock]$ git push -u origin HEAD
Counting objects: 9, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 462 bytes | 0 bytes/s, done.
Total 5 (delta 4), reused 0 (delta 0)
remote: W refs/heads/master haddock gergo DENIED by refs/.*
remote: error: hook declined to update refs/heads/master
To ssh://git at git.haskell.org/haddock.git
  ! [remote rejected] HEAD -> master (hook declined)
error: failed to push some refs to 'ssh://git at git.haskell.org/haddock.git'

So, OK, maybe I don't remember correctly and I can't push to master, let's 
push to my branch so that I can ask someone to move it over:

14:46:47 [cactus at galaxy haddock]$ git push --force -u origin HEAD:wip/pattern-synonyms
Counting objects: 9, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (5/5), done.
Writing objects: 100% (5/5), 462 bytes | 0 bytes/s, done.
Total 5 (delta 4), reused 0 (delta 0)
remote: + refs/heads/wip/pattern-synonyms haddock gergo DENIED by refs/.*
remote: error: hook declined to update refs/heads/wip/pattern-synonyms
To ssh://git at git.haskell.org/haddock.git
  ! [remote rejected] HEAD -> wip/pattern-synonyms (hook declined)
error: failed to push some refs to 'ssh://git at git.haskell.org/haddock.git'

I could try merging origin/master into the existing wip/pattern-synonyms 
branch but there wouldn't be much point in resolving all the merge 
conflicts, since my local branch (which is just one commit on top of 
origin/master) is already exactly what I'd want to push to master.

So how do I get my commit (which is needed for a patch to GHC proper) into 
the Haddock repo?

Thanks,
 	Gergo

From hvriedel at gmail.com  Sun May 25 06:54:27 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Sun, 25 May 2014 08:54:27 +0200
Subject: Haddock repo doesn't accept pushes?
In-Reply-To: <alpine.DEB.2.10.1405251444160.3411@galaxy> (ERDI Gergo's message
 of "Sun, 25 May 2014 14:50:21 +0800 (SGT)")
References: <alpine.DEB.2.10.1405251444160.3411@galaxy>
Message-ID: <87lhtqbb6k.fsf@gmail.com>

On 2014-05-25 at 08:50:21 +0200, Dr. ERDI Gergo wrote:
> Hi,
>
> I've just tried pushing a commit to the Haddock repo on git.haskell.org:

[...]

> So how do I get my commit (which is needed for a patch to GHC proper)
> into the Haddock repo?

short story: push to git at github.com:haskell/haddock.git instead

`haddock` is the first repo whose origin-repo got moved to github some
time ago, and I meant to write a bit more about how to cope with that.


From gergo at erdi.hu  Sun May 25 07:05:44 2014
From: gergo at erdi.hu (Dr. ERDI Gergo)
Date: Sun, 25 May 2014 15:05:44 +0800 (SGT)
Subject: Haddock repo doesn't accept pushes?
In-Reply-To: <87lhtqbb6k.fsf@gmail.com>
References: <alpine.DEB.2.10.1405251444160.3411@galaxy>
 <87lhtqbb6k.fsf@gmail.com>
Message-ID: <alpine.DEB.2.10.1405251505130.3411@galaxy>

On Sun, 25 May 2014, Herbert Valerio Riedel wrote:

> short story: push to git at github.com:haskell/haddock.git instead
>
> `haddock` is the first repo whose origin-repo got moved to github some
> time ago, and I meant to write a bit more about how to cope with that.

Worked perfectly, thanks.

From conal at conal.net  Sun May 25 16:42:24 2014
From: conal at conal.net (Conal Elliott)
Date: Sun, 25 May 2014 09:42:24 -0700
Subject: Constructing coercions for associated type?
Message-ID: <CAD6SzRLHc7QNyw3Hp_a=ipo1RApAmEG0QBz5_GkPKtTc7dUwcw@mail.gmail.com>

I'm working on a GHC plugin in which I need to programmatically construct a
coercion for an associated type, given the type function name and the type
argument. For instance, I have the following class:

> class Encodable a where
>   type Encode a
>   encode :: a -> Encode a
>   decode :: Encode a -> a

along with a type instance, say `Int -> Bool`. In a GHC plugin, how can I
apply a type function to an argument type to get back the resulting type
and the associated coercion? (Given the latter, I think the former comes
from `coercionKind`).

-- Conal
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From eir at cis.upenn.edu  Sun May 25 18:42:19 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Sun, 25 May 2014 14:42:19 -0400
Subject: Constructing coercions for associated type?
In-Reply-To: <CAD6SzRLHc7QNyw3Hp_a=ipo1RApAmEG0QBz5_GkPKtTc7dUwcw@mail.gmail.com>
References: <CAD6SzRLHc7QNyw3Hp_a=ipo1RApAmEG0QBz5_GkPKtTc7dUwcw@mail.gmail.com>
Message-ID: <54D75A76-EE6D-4B8F-8C0C-91632D1FC38D@cis.upenn.edu>

Does FamInstEnv.normaliseType work for you? FamInstEnv is in the types/ directory. FamInst.tcGetFamInstEnvs may also be helpful. FamInst is in the typecheck/ directory.

Richard

On May 25, 2014, at 12:42 PM, Conal Elliott <conal at conal.net> wrote:

> I'm working on a GHC plugin in which I need to programmatically construct a coercion for an associated type, given the type function name and the type argument. For instance, I have the following class:
> 
> > class Encodable a where
> >   type Encode a
> >   encode :: a -> Encode a
> >   decode :: Encode a -> a
> 
> along with a type instance, say `Int -> Bool`. In a GHC plugin, how can I apply a type function to an argument type to get back the resulting type and the associated coercion? (Given the latter, I think the former comes from `coercionKind`).
> 
> -- Conal
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From conal at conal.net  Sun May 25 22:00:03 2014
From: conal at conal.net (Conal Elliott)
Date: Sun, 25 May 2014 15:00:03 -0700
Subject: Constructing coercions for associated type?
In-Reply-To: <54D75A76-EE6D-4B8F-8C0C-91632D1FC38D@cis.upenn.edu>
References: <CAD6SzRLHc7QNyw3Hp_a=ipo1RApAmEG0QBz5_GkPKtTc7dUwcw@mail.gmail.com>
 <54D75A76-EE6D-4B8F-8C0C-91632D1FC38D@cis.upenn.edu>
Message-ID: <CAD6SzRL_7xzFQc=9DzFuVHoXLSi+UGiWQkri2A=3mq-g0Mr51g@mail.gmail.com>

Looks perfect. It'll take some time to put the pieces together, but I think
it'll work. Thanks, Richard!    -- Conal


On Sun, May 25, 2014 at 11:42 AM, Richard Eisenberg <eir at cis.upenn.edu>wrote:

> Does FamInstEnv.normaliseType work for you? FamInstEnv is in the types/
> directory. FamInst.tcGetFamInstEnvs may also be helpful. FamInst is in the
> typecheck/ directory.
>
> Richard
>
> On May 25, 2014, at 12:42 PM, Conal Elliott <conal at conal.net> wrote:
>
> > I'm working on a GHC plugin in which I need to programmatically
> construct a coercion for an associated type, given the type function name
> and the type argument. For instance, I have the following class:
> >
> > > class Encodable a where
> > >   type Encode a
> > >   encode :: a -> Encode a
> > >   decode :: Encode a -> a
> >
> > along with a type instance, say `Int -> Bool`. In a GHC plugin, how can
> I apply a type function to an argument type to get back the resulting type
> and the associated coercion? (Given the latter, I think the former comes
> from `coercionKind`).
> >
> > -- Conal
> > _______________________________________________
> > ghc-devs mailing list
> > ghc-devs at haskell.org
> > http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From ezyang at mit.edu  Mon May 26 22:45:57 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Mon, 26 May 2014 15:45:57 -0700
Subject: Weak reference semantics - why does a dead weak ref keep its
 value alive?
In-Reply-To: <CALqQuohfK0uPg-AhhujGSRV8G4z+pD=HFHHbHQ6c0Ek6JnDyfQ@mail.gmail.com>
References: <CALqQuojaYKJmY8iTorC83E5kHXJQkCSphH_fNkEpxN0=LkZXhA@mail.gmail.com>
 <1400884742-sup-5880@sabre>
 <CALqQuohfK0uPg-AhhujGSRV8G4z+pD=HFHHbHQ6c0Ek6JnDyfQ@mail.gmail.com>
Message-ID: <1401144300-sup-5365@sabre>

Excerpts from Luite Stegeman's message of 2014-05-23 17:11:30 -0700:
> Actually it's not the same, since I think the finalizer should still be run
> if the weak pointer object is unreachable (and it should run when the key
> becomes unreachable).

I think that's a legitimate point in the design space.

> I haven't been able to think of any issues with considering the value
> unreachable here, so I'm still puzzled as to why GHC's semantics would be
> preferable. It doesn't look like it would complicate implementation too
> much either.

I'm not sure either. Perhaps Simon can comment?

Edward

From simonpj at microsoft.com  Tue May 27 07:59:58 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Tue, 27 May 2014 07:59:58 +0000
Subject: Ghc 7.8 branch broken
Message-ID: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>

Austin, the ghc-7.8 branch does not build.  See below.
Simon


inplace/bin/mkUserGuidePart docs/users_guide/users_guide.xml

inplace/bin/mkUserGuidePart docs/users_guide/what_glasgow_exts_does.gen.xml

"rm" -rf docs/users_guide/users_guide/

"/usr/bin/xsltproc" --stringparam base.dir docs/users_guide/users_guide/ --stringparam use.id.as.filename 1 --stringparam html.stylesheet fptools.css --nonet --stringparam toc.section.depth 3 --stringparam section.autolabel 1 --stringparam section.label.includes.component.label 1  http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl docs/users_guide/users_guide.xml

docs/users_guide/intro.xml:312: parser error : Entity 'relnotes3' not defined

&relnotes3;

           ^

docs/users_guide/intro.xml:321: parser error : chunk is not well balanced



^

docs/users_guide/ug-book.xml:11: parser error : Failure to process entity intro

&intro;

       ^

docs/users_guide/ug-book.xml:11: parser error : Entity 'intro' not defined

&intro;

       ^

docs/users_guide/users_guide.xml:10: parser error : Failure to process entity ug-book

&ug-book;

         ^

docs/users_guide/users_guide.xml:10: parser error : Entity 'ug-book' not defined

&ug-book;

         ^

unable to parse docs/users_guide/users_guide.xml

"cp" -p ghc/stage2/build/tmp/ghc-stage2 inplace/lib/bin/ghc-stage2

make[1]: *** [docs/users_guide/users_guide/index.html] Error 6

make[1]: *** Waiting for unfinished jobs....

make: *** [all] Error 2

simonpj at cam-05-unx:~/5builds/ghc-7.8-branch$
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From austin at well-typed.com  Tue May 27 08:06:39 2014
From: austin at well-typed.com (Austin Seipp)
Date: Tue, 27 May 2014 03:06:39 -0500
Subject: GHC 7.8.3 release
Message-ID: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>

Hello all,

After a long week, I've finally gotten a little time to reply to
emails, and I mainly have one question I'd like to ask.

First, please direct your attention to this:

https://ghc.haskell.org/trac/ghc/query?status=closed&status=merge&status=patch&milestone=7.8.3&group=resolution&col=id&col=summary&col=owner&col=type&col=priority&col=component&col=version&order=priority

This is the 7.8.3 milestone, but it only considers things that are:

 - 1) Fixed
 - 2) Going to be merged
 - 3) Are a patch to be still merged.

That is, it is a solid representation of the difference between 7.8.2
and the 7.8 branch tip.

The question is: when should we do the release? There are several bugs
there that seem quite problematic for users - #9045, #7097, #9001,
#8768 and #9078 in particular.

If these bugs are really problematic (and I sort of feel they are)
then the release can happen soon. I can do it within a week from now,
and we could punt more to a 7.8.4 release.

I ask this because my time to dedicate to GHC is a bit thin right now,
so you must help me decide what's important! So please let me know -
just a general vote in favor of doing it within some X timeframe (even
'real soon' or 'a week would be great') would be nice.

PS: I apologize for the lack of status updates and brief email - my
time for GHC has been in very short order the past two weeks in
particular, and I've finally just returned to a computer (not mine)
for right now to ask this.

PPS: This might also impact the 7.10 schedule, but last Simon and I
talked, we thought perhaps shooting for ICFP this time (and actually
hitting it) was a good plan. So I'd estimate on that a 7.8.4 might
happen a few months from now, after summer.

-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/

From hvriedel at gmail.com  Tue May 27 08:19:59 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Tue, 27 May 2014 10:19:59 +0200
Subject: GHC 7.8.3 release
In-Reply-To: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 (Austin Seipp's message of "Tue, 27 May 2014 03:06:39 -0500")
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
Message-ID: <8738fvy6og.fsf@gmail.com>

Hi,

On 2014-05-27 at 10:06:39 +0200, Austin Seipp wrote:

[...]

> The question is: when should we do the release? There are several bugs
> there that seem quite problematic for users - #9045, #7097, #9001,
> #8768 and #9078 in particular.

Personally, I'd vote for a soon-ish 7.8.3 release for things which
already have a working good/low-risk fix in ghc-7.8, so the next HP can
go with 7.8.3 instead of using the known-to-be-suboptimal 7.8.2

Just my 2 cents

From marlowsd at gmail.com  Tue May 27 08:29:08 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Tue, 27 May 2014 09:29:08 +0100
Subject: Weak reference semantics - why does a dead weak ref keep its
 value alive?
In-Reply-To: <CALqQuohfK0uPg-AhhujGSRV8G4z+pD=HFHHbHQ6c0Ek6JnDyfQ@mail.gmail.com>
References: <CALqQuojaYKJmY8iTorC83E5kHXJQkCSphH_fNkEpxN0=LkZXhA@mail.gmail.com>
 <1400884742-sup-5880@sabre>
 <CALqQuohfK0uPg-AhhujGSRV8G4z+pD=HFHHbHQ6c0Ek6JnDyfQ@mail.gmail.com>
Message-ID: <53844CD4.7060409@gmail.com>

On 24/05/2014 01:11, Luite Stegeman wrote:
>
>     In particular, the variant of weak reference you suggest is the
>     /ephemeron/ semantics in Hayes.  Their reachability rule is:
>
>          The value field of an ephemeron is reachable if both (a) the
>          ephemeron (weak pointer object) is reachable, and (b) the key is
>          reachable.
>
>
> Actually it's not the same, since I think the finalizer should still be
> run if the weak pointer object is unreachable (and it should run when
> the key becomes unreachable).
>
> The implementation would indeed need to keep some reference to the key
> and finalizer around after the weak pointer becomes unreachable, perhaps
> on some weak pointers list, but the same goes for GHC's semantics. The
> only difference is that the value (which might in turn make a whole
> bunch of other data reachable) would not have to be retained.
>
> I haven't been able to think of any issues with considering the value
> unreachable here, so I'm still puzzled as to why GHC's semantics would
> be preferable. It doesn't look like it would complicate implementation
> too much either.

So the semantics is currently:

   w <- mkWeak k v f

  1. v is reachable if k is reachable
  2. f is reachable if k is reachable
  3. when k is unreachable, the finalizer f is run
  4. deRefWeak w returns
     - Nothing, if k is not reachable
     - Just v, otherwise

In your proposal I think you would change the first one to

  1. v is reachable if both k and w are reachable

Arguably this makes sense, because as you say, v is accessed via w, and 
what's the point of making v reachable if you can't access it? It's just 
a space leak.

My only worry is how hard this is to implement.  Rather than considering 
w as unconditionally reachable (which is what we do now), you would have 
to track its reachability, and only consider v reachable when both k and 
w are reachable.  A weak pointer object where only k was reachable would 
probably need to be put in a semi-dead (zombie?) state, so that we would 
still run the finalizer when k becomes unreachable.  I suspect all this 
might be more complicated to implement, but maybe there's a simpler way 
that I'm missing.

Cheers,
Simon

From kazu at iij.ad.jp  Tue May 27 08:39:34 2014
From: kazu at iij.ad.jp (Kazu Yamamoto (=?iso-2022-jp?B?GyRCOzNLXE9CSScbKEI=?=))
Date: Tue, 27 May 2014 17:39:34 +0900 (JST)
Subject: GHC 7.8.3 release
In-Reply-To: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
Message-ID: <20140527.173934.244924476991584853.kazu@iij.ad.jp>

Hi Austin,

> I ask this because my time to dedicate to GHC is a bit thin right now,
> so you must help me decide what's important! So please let me know -
> just a general vote in favor of doing it within some X timeframe (even
> 'real soon' or 'a week would be great') would be nice.

Would you give a look at: 
	http://www.haskell.org/pipermail/ghc-devs/2014-May/004990.html
	http://www.haskell.org/pipermail/ghc-devs/2014-May/004993.html

yesod-bin cannot be compiled with the coming GHC 7.8.3 yet. I believe
regression was introduced.

--Kazu

From johan.tibell at gmail.com  Tue May 27 09:01:22 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Tue, 27 May 2014 11:01:22 +0200
Subject: GHC 7.8.3 release
In-Reply-To: <CAKA2JgLG_A9ynrfw_RHA-nHig-Xp=5zLXzrF50O+W-yCxWWoqA@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <CAKA2JgLG_A9ynrfw_RHA-nHig-Xp=5zLXzrF50O+W-yCxWWoqA@mail.gmail.com>
Message-ID: <CAK-tuPajQ6DExSkCy=cZsPj53p1K_6x5YuL0xoST0e_u11wj3Q@mail.gmail.com>

I would say "sooner". Here are still unmerged things that I think we could
merge before (i.e. easy to merge):

https://ghc.haskell.org/trac/ghc/ticket/9001
https://ghc.haskell.org/trac/ghc/ticket/9078
https://ghc.haskell.org/trac/ghc/ticket/8475
https://ghc.haskell.org/trac/ghc/ticket/8783
https://ghc.haskell.org/trac/ghc/ticket/9068
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From chak at cse.unsw.edu.au  Tue May 27 09:11:09 2014
From: chak at cse.unsw.edu.au (Manuel M T Chakravarty)
Date: Tue, 27 May 2014 19:11:09 +1000
Subject: GHC 7.8.3 release
In-Reply-To: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
Message-ID: <037FC672-9933-40C1-85EB-5A8AC356A2A4@cse.unsw.edu.au>

I believe #9078 affects all EDSLs that use Andy Gill?s stable name method to implement observable sharing. It certainly crashes Accelerate.

I would very much appreciate if 7.8.3 would be released in time to make it into the upcoming Haskell Platform. (If the platform would ship with 7.8.2., that would be a quite bad for all affected EDSL libraries.)

Do we know the projected release date for the platform?

Manuel

PS: For Accelerate, the situation is actually rather awkward right now. Due to the changes re ambiguous signatures in GHC 7.8, Accelerate needs to introduce a breaking API change to compile with 7.8. However, we can?t really fully transition to 7.8 until #9078 is fixed.

Austin Seipp <austin at well-typed.com>:
> Hello all,
> 
> After a long week, I've finally gotten a little time to reply to
> emails, and I mainly have one question I'd like to ask.
> 
> First, please direct your attention to this:
> 
> https://ghc.haskell.org/trac/ghc/query?status=closed&status=merge&status=patch&milestone=7.8.3&group=resolution&col=id&col=summary&col=owner&col=type&col=priority&col=component&col=version&order=priority
> 
> This is the 7.8.3 milestone, but it only considers things that are:
> 
> - 1) Fixed
> - 2) Going to be merged
> - 3) Are a patch to be still merged.
> 
> That is, it is a solid representation of the difference between 7.8.2
> and the 7.8 branch tip.
> 
> The question is: when should we do the release? There are several bugs
> there that seem quite problematic for users - #9045, #7097, #9001,
> #8768 and #9078 in particular.
> 
> If these bugs are really problematic (and I sort of feel they are)
> then the release can happen soon. I can do it within a week from now,
> and we could punt more to a 7.8.4 release.
> 
> I ask this because my time to dedicate to GHC is a bit thin right now,
> so you must help me decide what's important! So please let me know -
> just a general vote in favor of doing it within some X timeframe (even
> 'real soon' or 'a week would be great') would be nice.
> 
> PS: I apologize for the lack of status updates and brief email - my
> time for GHC has been in very short order the past two weeks in
> particular, and I've finally just returned to a computer (not mine)
> for right now to ask this.
> 
> PPS: This might also impact the 7.10 schedule, but last Simon and I
> talked, we thought perhaps shooting for ICFP this time (and actually
> hitting it) was a good plan. So I'd estimate on that a 7.8.4 might
> happen a few months from now, after summer.
> 
> -- 
> Regards,
> 
> Austin Seipp, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users at haskell.org
> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users


From simonpj at microsoft.com  Tue May 27 09:31:37 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Tue, 27 May 2014 09:31:37 +0000
Subject: GHC 7.8.3 release
In-Reply-To: <CAK-tuPajQ6DExSkCy=cZsPj53p1K_6x5YuL0xoST0e_u11wj3Q@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <CAKA2JgLG_A9ynrfw_RHA-nHig-Xp=5zLXzrF50O+W-yCxWWoqA@mail.gmail.com>
 <CAK-tuPajQ6DExSkCy=cZsPj53p1K_6x5YuL0xoST0e_u11wj3Q@mail.gmail.com>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF103B2B6F@DB3PRD3001MB020.064d.mgd.msft.net>

are these all on Austin?s list, which he sent a pointer to?

Simon

From: Glasgow-haskell-users [mailto:glasgow-haskell-users-bounces at haskell.org] On Behalf Of Johan Tibell
Sent: 27 May 2014 10:01
To: Michael Snoyman
Cc: glasgow-haskell-users at haskell.org; ghc-devs at haskell.org
Subject: Re: GHC 7.8.3 release

I would say "sooner". Here are still unmerged things that I think we could merge before (i.e. easy to merge):

https://ghc.haskell.org/trac/ghc/ticket/9001
https://ghc.haskell.org/trac/ghc/ticket/9078
https://ghc.haskell.org/trac/ghc/ticket/8475
https://ghc.haskell.org/trac/ghc/ticket/8783
https://ghc.haskell.org/trac/ghc/ticket/9068
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From johan.tibell at gmail.com  Tue May 27 09:40:48 2014
From: johan.tibell at gmail.com (Johan Tibell)
Date: Tue, 27 May 2014 11:40:48 +0200
Subject: GHC 7.8.3 release
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF103B2B6F@DB3PRD3001MB020.064d.mgd.msft.net>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <CAKA2JgLG_A9ynrfw_RHA-nHig-Xp=5zLXzrF50O+W-yCxWWoqA@mail.gmail.com>
 <CAK-tuPajQ6DExSkCy=cZsPj53p1K_6x5YuL0xoST0e_u11wj3Q@mail.gmail.com>
 <618BE556AADD624C9C918AA5D5911BEF103B2B6F@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <CAK-tuPb+9uaAZM6fAOr6wbYmzaidwCNu8GoB3QvmuFJWWy5vzw@mail.gmail.com>

On Tue, May 27, 2014 at 11:31 AM, Simon Peyton Jones
<simonpj at microsoft.com>wrote:

>  are these all on Austin?s list, which he sent a pointer to?
>

Yes, they were in the last section of the page he linked to.
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From gale at sefer.org  Tue May 27 10:13:18 2014
From: gale at sefer.org (Yitzchak Gale)
Date: Tue, 27 May 2014 13:13:18 +0300
Subject: GHC 7.8.3 release
In-Reply-To: <8738fvy6og.fsf@gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
Message-ID: <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>

Herbert Valerio Riedel wrote:
> Personally, I'd vote for a soon-ish 7.8.3 release for things which
> already have a working good/low-risk fix in ghc-7.8, so the next HP can
> go with 7.8.3 instead of using the known-to-be-suboptimal 7.8.2

It's not certain that the HP team will be able to wait for that,
even if 7.8.3 is released within a week. It would require yet
another round of version tweaks, re-testing, etc. Given how
dreadfully delayed the HP release is already, that would be
a difficult decision to make.

Regards,
Yitz

From hvriedel at gmail.com  Tue May 27 10:27:57 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Tue, 27 May 2014 12:27:57 +0200
Subject: GHC 7.8.3 release
In-Reply-To: <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
 (Yitzchak Gale's message of "Tue, 27 May 2014 13:13:18 +0300")
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
 <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
Message-ID: <87ha4bwm6q.fsf@gmail.com>

On 2014-05-27 at 12:13:18 +0200, Yitzchak Gale wrote:
> Herbert Valerio Riedel wrote:
>> Personally, I'd vote for a soon-ish 7.8.3 release for things which
>> already have a working good/low-risk fix in ghc-7.8, so the next HP can
>> go with 7.8.3 instead of using the known-to-be-suboptimal 7.8.2
>
> It's not certain that the HP team will be able to wait for that,
> even if 7.8.3 is released within a week. It would require yet
> another round of version tweaks, re-testing, etc. Given how
> dreadfully delayed the HP release is already, that would be
> a difficult decision to make.

What kind of version tweaks are you thinking about? (Afaics, the GHC
bundled libraries don't have any version bumps.)

From gale at sefer.org  Tue May 27 10:47:53 2014
From: gale at sefer.org (Yitzchak Gale)
Date: Tue, 27 May 2014 13:47:53 +0300
Subject: GHC 7.8.3 release
In-Reply-To: <87ha4bwm6q.fsf@gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
 <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
 <87ha4bwm6q.fsf@gmail.com>
Message-ID: <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>

Herbert Valerio Riedel wrote:
> What kind of version tweaks are you thinking about? (Afaics, the GHC
> bundled libraries don't have any version bumps.)

Well for one thing, wouldn't the version of base be bumped?

If the bugs fixed in 7.8.3 affect any packages in the platform,
we would want to make whatever changes are needed to make sure
that the fixes work for them - at least bumping base. Then
everything would need to be re-built and re-tested. And if
no packages in the platform are affected, then given the
ridiculous delay of the platform release already, it's harder
justify waiting any longer. Like I said - it would be a difficult
decision (and not mine to make).

-Yitz

From chak at cse.unsw.edu.au  Tue May 27 11:09:04 2014
From: chak at cse.unsw.edu.au (Manuel M T Chakravarty)
Date: Tue, 27 May 2014 21:09:04 +1000
Subject: GHC 7.8.3 release
In-Reply-To: <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
 <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
 <87ha4bwm6q.fsf@gmail.com>
 <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>
Message-ID: <6B893857-09CA-465F-BB17-6F314617AD4E@cse.unsw.edu.au>

As far as I can see, the proposed fixes are all compiler and RTS fixes. (At least, it should be easy to restrict 6.8.3 to that. Austin?)

So, I don?t think it would affect the packages. And of what use is a platform that includes a compiler of which we know that it has serious problems?

Manuel

Yitzchak Gale <gale at sefer.org>:
> Herbert Valerio Riedel wrote:
>> What kind of version tweaks are you thinking about? (Afaics, the GHC
>> bundled libraries don't have any version bumps.)
> 
> Well for one thing, wouldn't the version of base be bumped?
> 
> If the bugs fixed in 7.8.3 affect any packages in the platform,
> we would want to make whatever changes are needed to make sure
> that the fixes work for them - at least bumping base. Then
> everything would need to be re-built and re-tested. And if
> no packages in the platform are affected, then given the
> ridiculous delay of the platform release already, it's harder
> justify waiting any longer. Like I said - it would be a difficult
> decision (and not mine to make).
> 
> -Yitz
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From hvriedel at gmail.com  Tue May 27 11:29:26 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Tue, 27 May 2014 13:29:26 +0200
Subject: GHC 7.8.3 release
In-Reply-To: <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>
 (Yitzchak Gale's message of "Tue, 27 May 2014 13:47:53 +0300")
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
 <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
 <87ha4bwm6q.fsf@gmail.com>
 <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>
Message-ID: <878upnwjc9.fsf@gmail.com>

On 2014-05-27 at 12:47:53 +0200, Yitzchak Gale wrote:
> Herbert Valerio Riedel wrote:
>> What kind of version tweaks are you thinking about? (Afaics, the GHC
>> bundled libraries don't have any version bumps.)
>
> Well for one thing, wouldn't the version of base be bumped?

There's not been any change yet to base in the ghc-7.8 branch since the
7.8.2 release:

  http://git.haskell.org/packages/base.git/shortlog/refs/heads/ghc-7.8

as you can see from

  https://ghc.haskell.org/trac/ghc/wiki/Commentary/Libraries/VersionHistory

it's happened in the past already, that 'base' was not bumped for every
(minor) GHC release. It's rather the exception when `base` version
bumps are performed for minor GHC releases.

> If the bugs fixed in 7.8.3 affect any packages in the platform,
> we would want to make whatever changes are needed to make sure
> that the fixes work for them - at least bumping base.

While I appreciate there may be packages affected by GHC 7.8.2/7.8.3
changes, I still fail to see how artificially bumping base would help
here.

> Then everything would need to be re-built and re-tested. And if no
> packages in the platform are affected, then given the ridiculous delay
> of the platform release already, it's harder justify waiting any
> longer. Like I said - it would be a difficult decision (and not mine
> to make).


From eir at cis.upenn.edu  Tue May 27 12:05:03 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Tue, 27 May 2014 08:05:03 -0400
Subject: Ghc 7.8 branch broken
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>
References: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <651A930B-87D1-42DB-9E0E-3E1BED9116DB@cis.upenn.edu>

I've gotten similar errors when my network connection is acting up -- I think DocBook goes out to the web to download the schema for GHC's manual. When it fails to find the schema, the errors below happen. Have you tried again? Maybe the source for the schema (sourceforge, from the looks of it) was offline for a moment.

Richard

On May 27, 2014, at 3:59 AM, Simon Peyton Jones <simonpj at microsoft.com> wrote:

> Austin, the ghc-7.8 branch does not build.  See below.
> 
> Simon
> 
>  
> 
> inplace/bin/mkUserGuidePart docs/users_guide/users_guide.xml
> inplace/bin/mkUserGuidePart docs/users_guide/what_glasgow_exts_does.gen.xml
> "rm" -rf docs/users_guide/users_guide/ 
> "/usr/bin/xsltproc" --stringparam base.dir docs/users_guide/users_guide/ --stringparam use.id.as.filename 1 --stringparam html.stylesheet fptools.css --nonet --stringparam toc.section.depth 3 --stringparam section.autolabel 1 --stringparam section.label.includes.component.label 1 http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsldocs/users_guide/users_guide.xml
> docs/users_guide/intro.xml:312: parser error : Entity 'relnotes3' not defined
> &relnotes3;
>            ^
> docs/users_guide/intro.xml:321: parser error : chunk is not well balanced
>  
> ^
> docs/users_guide/ug-book.xml:11: parser error : Failure to process entity intro
> &intro;
>        ^
> docs/users_guide/ug-book.xml:11: parser error : Entity 'intro' not defined
> &intro;
>        ^
> docs/users_guide/users_guide.xml:10: parser error : Failure to process entity ug-book
> &ug-book;
>          ^
> docs/users_guide/users_guide.xml:10: parser error : Entity 'ug-book' not defined
> &ug-book;
>          ^
> unable to parse docs/users_guide/users_guide.xml
> "cp" -p ghc/stage2/build/tmp/ghc-stage2 inplace/lib/bin/ghc-stage2
> make[1]: *** [docs/users_guide/users_guide/index.html] Error 6
> make[1]: *** Waiting for unfinished jobs....
> make: *** [all] Error 2
> simonpj at cam-05-unx:~/5builds/ghc-7.8-branch$
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs

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From gale at sefer.org  Tue May 27 12:15:28 2014
From: gale at sefer.org (Yitzchak Gale)
Date: Tue, 27 May 2014 15:15:28 +0300
Subject: GHC 7.8.3 release
In-Reply-To: <878upnwjc9.fsf@gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
 <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
 <87ha4bwm6q.fsf@gmail.com>
 <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>
 <878upnwjc9.fsf@gmail.com>
Message-ID: <CAOrUaLba8nf4a-s9HhQXK+Q1dUHRk=t2JJnV4_MQ1OMaf-ZyuA@mail.gmail.com>

OK then. It's just a question of updating some scripts,
rebuilding and retesting. If these are serious generable
usability issues, you are right that it sounds compelling.
Still, it will add time, so Mark will have to decide.

Thanks,
Yitz

On Tue, May 27, 2014 at 2:29 PM, Herbert Valerio Riedel
<hvriedel at gmail.com> wrote:
> On 2014-05-27 at 12:47:53 +0200, Yitzchak Gale wrote:
>> Herbert Valerio Riedel wrote:
>>> What kind of version tweaks are you thinking about? (Afaics, the GHC
>>> bundled libraries don't have any version bumps.)
>>
>> Well for one thing, wouldn't the version of base be bumped?
>
> There's not been any change yet to base in the ghc-7.8 branch since the
> 7.8.2 release:
>
>   http://git.haskell.org/packages/base.git/shortlog/refs/heads/ghc-7.8
>
> as you can see from
>
>   https://ghc.haskell.org/trac/ghc/wiki/Commentary/Libraries/VersionHistory
>
> it's happened in the past already, that 'base' was not bumped for every
> (minor) GHC release. It's rather the exception when `base` version
> bumps are performed for minor GHC releases.
>
>> If the bugs fixed in 7.8.3 affect any packages in the platform,
>> we would want to make whatever changes are needed to make sure
>> that the fixes work for them - at least bumping base.
>
> While I appreciate there may be packages affected by GHC 7.8.2/7.8.3
> changes, I still fail to see how artificially bumping base would help
> here.
>
>> Then everything would need to be re-built and re-tested. And if no
>> packages in the platform are affected, then given the ridiculous delay
>> of the platform release already, it's harder justify waiting any
>> longer. Like I said - it would be a difficult decision (and not mine
>> to make).
>

From simonpj at microsoft.com  Tue May 27 12:53:25 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Tue, 27 May 2014 12:53:25 +0000
Subject: Ghc 7.8 branch broken
In-Reply-To: <651A930B-87D1-42DB-9E0E-3E1BED9116DB@cis.upenn.edu>
References: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>
 <651A930B-87D1-42DB-9E0E-3E1BED9116DB@cis.upenn.edu>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF103B3E1A@DB3PRD3001MB020.064d.mgd.msft.net>

Seriously?  you need a live internet connection to build GHC??  But yes, it still hapopns

From: Richard Eisenberg [mailto:eir at cis.upenn.edu]
Sent: 27 May 2014 13:05
To: Simon Peyton Jones
Cc: Austin Seipp; ghc-devs at haskell.org
Subject: Re: Ghc 7.8 branch broken

I've gotten similar errors when my network connection is acting up -- I think DocBook goes out to the web to download the schema for GHC's manual. When it fails to find the schema, the errors below happen. Have you tried again? Maybe the source for the schema (sourceforge, from the looks of it) was offline for a moment.

Richard

On May 27, 2014, at 3:59 AM, Simon Peyton Jones <simonpj at microsoft.com<mailto:simonpj at microsoft.com>> wrote:


Austin, the ghc-7.8 branch does not build.  See below.
Simon

inplace/bin/mkUserGuidePart docs/users_guide/users_guide.xml
inplace/bin/mkUserGuidePart docs/users_guide/what_glasgow_exts_does.gen.xml
"rm" -rf docs/users_guide/users_guide/
"/usr/bin/xsltproc" --stringparam base.dir docs/users_guide/users_guide/ --stringparam use.id.as.filename 1 --stringparam html.stylesheet fptools.css --nonet --stringparam toc.section.depth 3 --stringparam section.autolabel 1 --stringparam section.label.includes.component.label 1 http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsldocs/users_guide/users_guide.xml
docs/users_guide/intro.xml:312: parser error : Entity 'relnotes3' not defined
&relnotes3;
           ^
docs/users_guide/intro.xml:321: parser error : chunk is not well balanced

^
docs/users_guide/ug-book.xml:11: parser error : Failure to process entity intro
&intro;
       ^
docs/users_guide/ug-book.xml:11: parser error : Entity 'intro' not defined
&intro;
       ^
docs/users_guide/users_guide.xml:10: parser error : Failure to process entity ug-book
&ug-book;
         ^
docs/users_guide/users_guide.xml:10: parser error : Entity 'ug-book' not defined
&ug-book;
         ^
unable to parse docs/users_guide/users_guide.xml
"cp" -p ghc/stage2/build/tmp/ghc-stage2 inplace/lib/bin/ghc-stage2
make[1]: *** [docs/users_guide/users_guide/index.html] Error 6
make[1]: *** Waiting for unfinished jobs....
make: *** [all] Error 2
simonpj at cam-05-unx:~/5builds/ghc-7.8-branch$<mailto:simonpj at cam-05-unx:~/5builds/ghc-7.8-branch$>
_______________________________________________
ghc-devs mailing list
ghc-devs at haskell.org<mailto:ghc-devs at haskell.org>
http://www.haskell.org/mailman/listinfo/ghc-devs

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From eir at cis.upenn.edu  Tue May 27 12:57:34 2014
From: eir at cis.upenn.edu (Richard Eisenberg)
Date: Tue, 27 May 2014 08:57:34 -0400
Subject: Ghc 7.8 branch broken
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF103B3E1A@DB3PRD3001MB020.064d.mgd.msft.net>
References: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>
 <651A930B-87D1-42DB-9E0E-3E1BED9116DB@cis.upenn.edu>
 <618BE556AADD624C9C918AA5D5911BEF103B3E1A@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <10B07382-3636-462A-B43F-5E13FBE86001@cis.upenn.edu>

To build the manual, yes, in my experience. Builds without the manual work fine.

I've also had problems building the manual (with similar errors) multithreaded. Are you passing any `-j` flags to `make`? Try saying `make -j1` just to be sure.

Richard

On May 27, 2014, at 8:53 AM, Simon Peyton Jones <simonpj at microsoft.com> wrote:

> Seriously?  you need a live internet connection to build GHC??  But yes, it still hapopns
>  
> From: Richard Eisenberg [mailto:eir at cis.upenn.edu] 
> Sent: 27 May 2014 13:05
> To: Simon Peyton Jones
> Cc: Austin Seipp; ghc-devs at haskell.org
> Subject: Re: Ghc 7.8 branch broken
>  
> I've gotten similar errors when my network connection is acting up -- I think DocBook goes out to the web to download the schema for GHC's manual. When it fails to find the schema, the errors below happen. Have you tried again? Maybe the source for the schema (sourceforge, from the looks of it) was offline for a moment.
>  
> Richard
>  
> On May 27, 2014, at 3:59 AM, Simon Peyton Jones <simonpj at microsoft.com> wrote:
> 
> 
> Austin, the ghc-7.8 branch does not build.  See below.
> 
> Simon
> 
>  
> 
> inplace/bin/mkUserGuidePart docs/users_guide/users_guide.xml
> inplace/bin/mkUserGuidePart docs/users_guide/what_glasgow_exts_does.gen.xml
> "rm" -rf docs/users_guide/users_guide/ 
> "/usr/bin/xsltproc" --stringparam base.dir docs/users_guide/users_guide/ --stringparam use.id.as.filename 1 --stringparam html.stylesheet fptools.css --nonet --stringparam toc.section.depth 3 --stringparam section.autolabel 1 --stringparam section.label.includes.component.label 1 http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsldocs/users_guide/users_guide.xml
> docs/users_guide/intro.xml:312: parser error : Entity 'relnotes3' not defined
> &relnotes3;
>            ^
> docs/users_guide/intro.xml:321: parser error : chunk is not well balanced
>  
> ^
> docs/users_guide/ug-book.xml:11: parser error : Failure to process entity intro
> &intro;
>        ^
> docs/users_guide/ug-book.xml:11: parser error : Entity 'intro' not defined
> &intro;
>        ^
> docs/users_guide/users_guide.xml:10: parser error : Failure to process entity ug-book
> &ug-book;
>          ^
> docs/users_guide/users_guide.xml:10: parser error : Entity 'ug-book' not defined
> &ug-book;
>          ^
> unable to parse docs/users_guide/users_guide.xml
> "cp" -p ghc/stage2/build/tmp/ghc-stage2 inplace/lib/bin/ghc-stage2
> make[1]: *** [docs/users_guide/users_guide/index.html] Error 6
> make[1]: *** Waiting for unfinished jobs....
> make: *** [all] Error 2
> simonpj at cam-05-unx:~/5builds/ghc-7.8-branch$
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs

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From george.colpitts at gmail.com  Tue May 27 13:01:36 2014
From: george.colpitts at gmail.com (George Colpitts)
Date: Tue, 27 May 2014 10:01:36 -0300
Subject: GHC 7.8.3 release
In-Reply-To: <8738fvy6og.fsf@gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
Message-ID: <CAB-d4A6LHZ0crZzcH60rJTg1DJm_23DTm0g4aBiTJjDDkhW9FA@mail.gmail.com>

+1
for "a soon-ish 7.8.3 release for things which
already have a working good/low-risk fix in ghc-7.8, so the next HP can
go with 7.8.3 instead of using the known-to-be-suboptimal 7.8.2"


Also,  I don't have a reproducible case but I am getting occasional errors
with 7.8.2 on Apple Mavericks that kill ghci where the error is:

 ld: illegal text-relocation to '_ghczmprim_GHCziTypes_ZMZN_closure' in
/usr/local/lib/ghc-7.8.2/ghc-prim-0.3.1.0/libHSghc-prim-0.3.1.0-ghc7.8.2.dylib
from '_cbea_info' in /Users/gcolpitts/algo1/ps3-exp.o for architecture
x86_64
collect2: error: ld returned 1 exit status
phase `Linker' failed (exitcode = 1)

?I'm wondering if anybody else has seen this or has any thoughts on this.
It's not a show stopper for me as it is relatively rare and I just restart
ghci. I'm using ghci inside emacs (Aquamacs 2.5)

Thanks
George
?



On Tue, May 27, 2014 at 5:19 AM, Herbert Valerio Riedel
<hvriedel at gmail.com>wrote:

> Hi,
>
> On 2014-05-27 at 10:06:39 +0200, Austin Seipp wrote:
>
> [...]
>
> > The question is: when should we do the release? There are several bugs
> > there that seem quite problematic for users - #9045, #7097, #9001,
> > #8768 and #9078 in particular.
>
> Personally, I'd vote for a soon-ish 7.8.3 release for things which
> already have a working good/low-risk fix in ghc-7.8, so the next HP can
> go with 7.8.3 instead of using the known-to-be-suboptimal 7.8.2
>
> Just my 2 cents
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From metaniklas at gmail.com  Tue May 27 16:15:19 2014
From: metaniklas at gmail.com (Niklas Larsson)
Date: Tue, 27 May 2014 18:15:19 +0200
Subject: GHC 7.8.3 release
In-Reply-To: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
Message-ID: <CACG=oWHLZGGJRA9kRx--rC_Jxev8Dti5AbqzvSWnkF+xtzoKag@mail.gmail.com>

Hi!

It would be great if the patch I added on #9080 was put into 7.8.3 (well, I
guess someone has to commit it to master first).

Niklas


2014-05-27 10:06 GMT+02:00 Austin Seipp <austin at well-typed.com>:

> Hello all,
>
> After a long week, I've finally gotten a little time to reply to
> emails, and I mainly have one question I'd like to ask.
>
> First, please direct your attention to this:
>
>
> https://ghc.haskell.org/trac/ghc/query?status=closed&status=merge&status=patch&milestone=7.8.3&group=resolution&col=id&col=summary&col=owner&col=type&col=priority&col=component&col=version&order=priority
>
> This is the 7.8.3 milestone, but it only considers things that are:
>
>  - 1) Fixed
>  - 2) Going to be merged
>  - 3) Are a patch to be still merged.
>
> That is, it is a solid representation of the difference between 7.8.2
> and the 7.8 branch tip.
>
> The question is: when should we do the release? There are several bugs
> there that seem quite problematic for users - #9045, #7097, #9001,
> #8768 and #9078 in particular.
>
> If these bugs are really problematic (and I sort of feel they are)
> then the release can happen soon. I can do it within a week from now,
> and we could punt more to a 7.8.4 release.
>
> I ask this because my time to dedicate to GHC is a bit thin right now,
> so you must help me decide what's important! So please let me know -
> just a general vote in favor of doing it within some X timeframe (even
> 'real soon' or 'a week would be great') would be nice.
>
> PS: I apologize for the lack of status updates and brief email - my
> time for GHC has been in very short order the past two weeks in
> particular, and I've finally just returned to a computer (not mine)
> for right now to ask this.
>
> PPS: This might also impact the 7.10 schedule, but last Simon and I
> talked, we thought perhaps shooting for ICFP this time (and actually
> hitting it) was a good plan. So I'd estimate on that a 7.8.4 might
> happen a few months from now, after summer.
>
> --
> Regards,
>
> Austin Seipp, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/
> _______________________________________________
> Glasgow-haskell-users mailing list
> Glasgow-haskell-users at haskell.org
> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>
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From austin at well-typed.com  Tue May 27 16:27:57 2014
From: austin at well-typed.com (Austin Seipp)
Date: Tue, 27 May 2014 11:27:57 -0500
Subject: GHC 7.8.3 release
In-Reply-To: <CACG=oWHLZGGJRA9kRx--rC_Jxev8Dti5AbqzvSWnkF+xtzoKag@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <CACG=oWHLZGGJRA9kRx--rC_Jxev8Dti5AbqzvSWnkF+xtzoKag@mail.gmail.com>
Message-ID: <CAEs96n3Sf2c4G8iwns6sYQ9CMvO-k=rjbqPtHKOkRrXuWqQQhg@mail.gmail.com>

Hi Niklas,

Yes, that patch looks great, thank you. The only reason it wasn't
included in the list earlier was that the status was set to 'new', not
to 'patch!' I'm afraid this is perhaps the most critical aspect
necessary for me to recognize such tickets. I have marked it as patch,
and it can go into 7.8.3, yes.

(Let it be known that, essentially, as time moves forward, the
probability of Austin forgetting a patch that is NOT marked
appropriately on trac rapidly, rapidly approaches one - if you have a
patch, please double-check that super-important 'status' field
please!)

On Tue, May 27, 2014 at 11:15 AM, Niklas Larsson <metaniklas at gmail.com> wrote:
> Hi!
>
> It would be great if the patch I added on #9080 was put into 7.8.3 (well, I
> guess someone has to commit it to master first).
>
> Niklas
>
>
> 2014-05-27 10:06 GMT+02:00 Austin Seipp <austin at well-typed.com>:
>>
>> Hello all,
>>
>> After a long week, I've finally gotten a little time to reply to
>> emails, and I mainly have one question I'd like to ask.
>>
>> First, please direct your attention to this:
>>
>>
>> https://ghc.haskell.org/trac/ghc/query?status=closed&status=merge&status=patch&milestone=7.8.3&group=resolution&col=id&col=summary&col=owner&col=type&col=priority&col=component&col=version&order=priority
>>
>> This is the 7.8.3 milestone, but it only considers things that are:
>>
>>  - 1) Fixed
>>  - 2) Going to be merged
>>  - 3) Are a patch to be still merged.
>>
>> That is, it is a solid representation of the difference between 7.8.2
>> and the 7.8 branch tip.
>>
>> The question is: when should we do the release? There are several bugs
>> there that seem quite problematic for users - #9045, #7097, #9001,
>> #8768 and #9078 in particular.
>>
>> If these bugs are really problematic (and I sort of feel they are)
>> then the release can happen soon. I can do it within a week from now,
>> and we could punt more to a 7.8.4 release.
>>
>> I ask this because my time to dedicate to GHC is a bit thin right now,
>> so you must help me decide what's important! So please let me know -
>> just a general vote in favor of doing it within some X timeframe (even
>> 'real soon' or 'a week would be great') would be nice.
>>
>> PS: I apologize for the lack of status updates and brief email - my
>> time for GHC has been in very short order the past two weeks in
>> particular, and I've finally just returned to a computer (not mine)
>> for right now to ask this.
>>
>> PPS: This might also impact the 7.10 schedule, but last Simon and I
>> talked, we thought perhaps shooting for ICFP this time (and actually
>> hitting it) was a good plan. So I'd estimate on that a 7.8.4 might
>> happen a few months from now, after summer.
>>
>> --
>> Regards,
>>
>> Austin Seipp, Haskell Consultant
>> Well-Typed LLP, http://www.well-typed.com/
>> _______________________________________________
>> Glasgow-haskell-users mailing list
>> Glasgow-haskell-users at haskell.org
>> http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
>
>



-- 
Regards,

Austin Seipp, Haskell Consultant
Well-Typed LLP, http://www.well-typed.com/

From bos at serpentine.com  Tue May 27 18:51:55 2014
From: bos at serpentine.com (Bryan O'Sullivan)
Date: Tue, 27 May 2014 11:51:55 -0700
Subject: Ghc 7.8 branch broken
In-Reply-To: <10B07382-3636-462A-B43F-5E13FBE86001@cis.upenn.edu>
References: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>
 <651A930B-87D1-42DB-9E0E-3E1BED9116DB@cis.upenn.edu>
 <618BE556AADD624C9C918AA5D5911BEF103B3E1A@DB3PRD3001MB020.064d.mgd.msft.net>
 <10B07382-3636-462A-B43F-5E13FBE86001@cis.upenn.edu>
Message-ID: <CACw0niK89WuUG6pxG47JmatXc7mfn_-xtmba0ipfc1UAvYph7A@mail.gmail.com>

On Tue, May 27, 2014 at 5:57 AM, Richard Eisenberg <eir at cis.upenn.edu>wrote:

> To build the manual, yes, in my experience. Builds without the manual work
> fine.
>

Perhaps adding --nonet to the xsltproc command line is in order.
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From igloo at earth.li  Tue May 27 19:21:22 2014
From: igloo at earth.li (Ian Lynagh)
Date: Tue, 27 May 2014 20:21:22 +0100
Subject: Ghc 7.8 branch broken
In-Reply-To: <CACw0niK89WuUG6pxG47JmatXc7mfn_-xtmba0ipfc1UAvYph7A@mail.gmail.com>
References: <618BE556AADD624C9C918AA5D5911BEF103B2926@DB3PRD3001MB020.064d.mgd.msft.net>
 <651A930B-87D1-42DB-9E0E-3E1BED9116DB@cis.upenn.edu>
 <618BE556AADD624C9C918AA5D5911BEF103B3E1A@DB3PRD3001MB020.064d.mgd.msft.net>
 <10B07382-3636-462A-B43F-5E13FBE86001@cis.upenn.edu>
 <CACw0niK89WuUG6pxG47JmatXc7mfn_-xtmba0ipfc1UAvYph7A@mail.gmail.com>
Message-ID: <20140527192122.GA27891@matrix.chaos.earth.li>

On Tue, May 27, 2014 at 11:51:55AM -0700, Bryan O'Sullivan wrote:
> On Tue, May 27, 2014 at 5:57 AM, Richard Eisenberg <eir at cis.upenn.edu>wrote:
> 
> > To build the manual, yes, in my experience. Builds without the manual work
> > fine.
> 
> Perhaps adding --nonet to the xsltproc command line is in order.

It's already there. If the build is doing anything on the 'net, it
should definitely be looked into and fixed!

$ grep -C 5 nonet rules/docbook.mk
        $$(call removeTrees,$$(dir $$@))
        "$$(XSLTPROC)" --stringparam base.dir $$(dir $$@) \
                       --stringparam use.id.as.filename 1 \
                       --stringparam html.stylesheet fptools.css \
                       --nonet \
                       $$(XSLTPROC_LABEL_OPTS) $$(XSLTPROC_OPTS) \
                       $$(XSLTPROC_HTML_STYLESHEET) \
                       $1/$2.xml
        cp mk/fptools.css $$(dir $$@)


Thanks
Ian


From chak at cse.unsw.edu.au  Wed May 28 02:17:01 2014
From: chak at cse.unsw.edu.au (Manuel M T Chakravarty)
Date: Wed, 28 May 2014 12:17:01 +1000
Subject: GHC 7.8.3 release
In-Reply-To: <CAOrUaLba8nf4a-s9HhQXK+Q1dUHRk=t2JJnV4_MQ1OMaf-ZyuA@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <8738fvy6og.fsf@gmail.com>
 <CAOrUaLY6JY89JgnxJsNDPQATyAAz-R9ZhGb5A8fuwe7VoJx85g@mail.gmail.com>
 <87ha4bwm6q.fsf@gmail.com>
 <CAOrUaLYsHkdf-ag3YwwHVezAthMkRZtO7RY0qaP3yagKWQJ8Bw@mail.gmail.com>
 <878upnwjc9.fsf@gmail.com>
 <CAOrUaLba8nf4a-s9HhQXK+Q1dUHRk=t2JJnV4_MQ1OMaf-ZyuA@mail.gmail.com>
Message-ID: <634C5099-EEB7-4EB1-B8EC-C5898B974C9F@cse.unsw.edu.au>

Mark, 

Did you see this thread?

Manuel

Yitzchak Gale <gale at sefer.org>:

> OK then. It's just a question of updating some scripts,
> rebuilding and retesting. If these are serious generable
> usability issues, you are right that it sounds compelling.
> Still, it will add time, so Mark will have to decide.
> 
> Thanks,
> Yitz
> 
> On Tue, May 27, 2014 at 2:29 PM, Herbert Valerio Riedel
> <hvriedel at gmail.com> wrote:
>> On 2014-05-27 at 12:47:53 +0200, Yitzchak Gale wrote:
>>> Herbert Valerio Riedel wrote:
>>>> What kind of version tweaks are you thinking about? (Afaics, the GHC
>>>> bundled libraries don't have any version bumps.)
>>> 
>>> Well for one thing, wouldn't the version of base be bumped?
>> 
>> There's not been any change yet to base in the ghc-7.8 branch since the
>> 7.8.2 release:
>> 
>>  http://git.haskell.org/packages/base.git/shortlog/refs/heads/ghc-7.8
>> 
>> as you can see from
>> 
>>  https://ghc.haskell.org/trac/ghc/wiki/Commentary/Libraries/VersionHistory
>> 
>> it's happened in the past already, that 'base' was not bumped for every
>> (minor) GHC release. It's rather the exception when `base` version
>> bumps are performed for minor GHC releases.
>> 
>>> If the bugs fixed in 7.8.3 affect any packages in the platform,
>>> we would want to make whatever changes are needed to make sure
>>> that the fixes work for them - at least bumping base.
>> 
>> While I appreciate there may be packages affected by GHC 7.8.2/7.8.3
>> changes, I still fail to see how artificially bumping base would help
>> here.
>> 
>>> Then everything would need to be re-built and re-tested. And if no
>>> packages in the platform are affected, then given the ridiculous delay
>>> of the platform release already, it's harder justify waiting any
>>> longer. Like I said - it would be a difficult decision (and not mine
>>> to make).
>> 
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs


From omeragacan at gmail.com  Wed May 28 10:04:39 2014
From: omeragacan at gmail.com (=?UTF-8?Q?=C3=96mer_Sinan_A=C4=9Facan?=)
Date: Wed, 28 May 2014 13:04:39 +0300
Subject: segfault in RTS - can anyone help me tracking this bug down?
Message-ID: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>

Hi all,

I'm suffering from a RTS bug(probably GC related) that makes making
progress in my GSoC project impossible. I have very limited knowledge
of GHC internals and I currently have no idea how to produce a minimal
program that demonstrates the bug. I wrote how to reproduce it and gdb
backtrace when segfault happens in a short blog post:
http://osa1.net/posts/2014-05-27-worst-bug.html . As also written in
the blog post, changing generation count of generational GC will makes
the bug disappear in some cases, but it's not a solution.

I also pasted backtrace output below for those who don't want to click links.

GHC version used is 7.8.2.

If anyone give me some pointers to understand what's going wrong or
how can I produce a simple program that demonstrates the bug, I'd like
to work on that. I'm basically stuck and I can't make any progress
with this bug.

Thanks,
?mer

[  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
dist/build/GHC/Unicode.js_p_o-boot )
Detaching after fork from child process 3382.
[  6 of 202] Compiling GHC.IO[boot]     ( GHC/IO.hs-boot,
dist/build/GHC/IO.js_p_o-boot )
Detaching after fork from child process 3383.
[  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
dist/build/GHC/Exception.js_p_o-boot )
Detaching after fork from child process 3384.
[ 51 of 202] Compiling GHC.Fingerprint[boot] (
GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js_p_o-boot )
Detaching after fork from child process 3385.
[ 55 of 202] Compiling GHC.IO.Exception[boot] (
GHC/IO/Exception.hs-boot, dist/build/GHC/IO/Exception.js_p_o-boot )
Detaching after fork from child process 3386.
[ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
dist/build/Foreign/C/Types.js_p_o )

Program received signal SIGSEGV, Segmentation fault.
0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
includes/rts/storage/ClosureMacros.h:258
258     includes/rts/storage/ClosureMacros.h: No such file or directory.
(gdb) bt
#0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
includes/rts/storage/ClosureMacros.h:258
#1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
gen=0x4d1fd48) at rts/sm/Scav.c:1400
#2  0x000000000425fa13 in scavenge_capability_mut_Lists1
(cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
#3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
do_heap_census=rtsFalse, gc_type=2,
    cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
#4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
task=0x4d32b60, force_major=rtsFalse)
    at rts/Schedule.c:1650
#5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
<MainCapability>, task=0x4d32b60)
    at rts/Schedule.c:553
#6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
#7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
#8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
#9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
main_closure=0x477f850, rts_config=...)
    at rts/RtsMain.c:114
#10 0x0000000000408ea7 in main ()

From ekmett at gmail.com  Wed May 28 11:16:52 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Wed, 28 May 2014 07:16:52 -0400
Subject: Parallelizing the Weak Pointer Lock
Message-ID: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>

How hard *would* it be to replace the global weak pointer lock with
something that scales better?

I'm looking at switching some of my older BDD code into Haskell.

To do so I'd love to be able to use an "intuitive" weak-pointer based cache
management scheme, but I have to confess the notion of a global lock
getting in the way basically damns whatever solution I come up with to be a
single-threaded toy. =/

If I'm trying to sell Haskell's parallelism to others, it seems my only
winning moves right now are:

1.) play less satisfying games with typed regions, which scale less well
than the tried and tested solutions of GCing hash-consed BDD structures.

2.) just tackle the problem that allocating a weak pointer grabs a global
lock.

3.) not to play the game

-Edward
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From rwbarton at gmail.com  Wed May 28 17:43:06 2014
From: rwbarton at gmail.com (Reid Barton)
Date: Wed, 28 May 2014 13:43:06 -0400
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
Message-ID: <CADmwj475Mvzu4hNDEBfEZpS2Mj9js5dxfN+_Jfyv_CRF02KaRg@mail.gmail.com>

There are a couple of recent GC-related bug fixes (#9045 and #9001). Before
trying to track this down any further I suggest you try using the tip of
the ghc-7.8 branch with commit fc0ed8a730 cherry-picked on top.

Regards,
Reid Barton


On Wed, May 28, 2014 at 6:04 AM, ?mer Sinan A?acan <omeragacan at gmail.com>wrote:

> Hi all,
>
> I'm suffering from a RTS bug(probably GC related) that makes making
> progress in my GSoC project impossible. I have very limited knowledge
> of GHC internals and I currently have no idea how to produce a minimal
> program that demonstrates the bug. I wrote how to reproduce it and gdb
> backtrace when segfault happens in a short blog post:
> http://osa1.net/posts/2014-05-27-worst-bug.html . As also written in
> the blog post, changing generation count of generational GC will makes
> the bug disappear in some cases, but it's not a solution.
>
> I also pasted backtrace output below for those who don't want to click
> links.
>
> GHC version used is 7.8.2.
>
> If anyone give me some pointers to understand what's going wrong or
> how can I produce a simple program that demonstrates the bug, I'd like
> to work on that. I'm basically stuck and I can't make any progress
> with this bug.
>
> Thanks,
> ?mer
>
> [  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
> dist/build/GHC/Unicode.js_p_o-boot )
> Detaching after fork from child process 3382.
> [  6 of 202] Compiling GHC.IO[boot]     ( GHC/IO.hs-boot,
> dist/build/GHC/IO.js_p_o-boot )
> Detaching after fork from child process 3383.
> [  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
> dist/build/GHC/Exception.js_p_o-boot )
> Detaching after fork from child process 3384.
> [ 51 of 202] Compiling GHC.Fingerprint[boot] (
> GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js_p_o-boot )
> Detaching after fork from child process 3385.
> [ 55 of 202] Compiling GHC.IO.Exception[boot] (
> GHC/IO/Exception.hs-boot, dist/build/GHC/IO/Exception.js_p_o-boot )
> Detaching after fork from child process 3386.
> [ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
> dist/build/Foreign/C/Types.js_p_o )
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
> includes/rts/storage/ClosureMacros.h:258
> 258     includes/rts/storage/ClosureMacros.h: No such file or directory.
> (gdb) bt
> #0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
> includes/rts/storage/ClosureMacros.h:258
> #1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
> gen=0x4d1fd48) at rts/sm/Scav.c:1400
> #2  0x000000000425fa13 in scavenge_capability_mut_Lists1
> (cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
> #3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
> do_heap_census=rtsFalse, gc_type=2,
>     cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
> #4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
> task=0x4d32b60, force_major=rtsFalse)
>     at rts/Schedule.c:1650
> #5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
> <MainCapability>, task=0x4d32b60)
>     at rts/Schedule.c:553
> #6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
> ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
> #7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
> p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
> #8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
> #9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
> main_closure=0x477f850, rts_config=...)
>     at rts/RtsMain.c:114
> #10 0x0000000000408ea7 in main ()
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From stegeman at gmail.com  Wed May 28 17:45:30 2014
From: stegeman at gmail.com (Luite Stegeman)
Date: Wed, 28 May 2014 19:45:30 +0200
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <CADmwj475Mvzu4hNDEBfEZpS2Mj9js5dxfN+_Jfyv_CRF02KaRg@mail.gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
 <CADmwj475Mvzu4hNDEBfEZpS2Mj9js5dxfN+_Jfyv_CRF02KaRg@mail.gmail.com>
Message-ID: <CALqQuoiA5a-wUkoCvX4Hq44rMtqNPYcHHT9od2=roBS+2X1ibg@mail.gmail.com>

I did that yesterday but it still segfaulted in the same place.

luite



On Wed, May 28, 2014 at 7:43 PM, Reid Barton <rwbarton at gmail.com> wrote:

> There are a couple of recent GC-related bug fixes (#9045 and #9001).
> Before trying to track this down any further I suggest you try using the
> tip of the ghc-7.8 branch with commit fc0ed8a730 cherry-picked on top.
>
> Regards,
> Reid Barton
>
>
> On Wed, May 28, 2014 at 6:04 AM, ?mer Sinan A?acan <omeragacan at gmail.com>wrote:
>
>> Hi all,
>>
>> I'm suffering from a RTS bug(probably GC related) that makes making
>> progress in my GSoC project impossible. I have very limited knowledge
>> of GHC internals and I currently have no idea how to produce a minimal
>> program that demonstrates the bug. I wrote how to reproduce it and gdb
>> backtrace when segfault happens in a short blog post:
>> http://osa1.net/posts/2014-05-27-worst-bug.html . As also written in
>> the blog post, changing generation count of generational GC will makes
>> the bug disappear in some cases, but it's not a solution.
>>
>> I also pasted backtrace output below for those who don't want to click
>> links.
>>
>> GHC version used is 7.8.2.
>>
>> If anyone give me some pointers to understand what's going wrong or
>> how can I produce a simple program that demonstrates the bug, I'd like
>> to work on that. I'm basically stuck and I can't make any progress
>> with this bug.
>>
>> Thanks,
>> ?mer
>>
>> [  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
>> dist/build/GHC/Unicode.js_p_o-boot )
>> Detaching after fork from child process 3382.
>> [  6 of 202] Compiling GHC.IO[boot]     ( GHC/IO.hs-boot,
>> dist/build/GHC/IO.js_p_o-boot )
>> Detaching after fork from child process 3383.
>> [  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
>> dist/build/GHC/Exception.js_p_o-boot )
>> Detaching after fork from child process 3384.
>> [ 51 of 202] Compiling GHC.Fingerprint[boot] (
>> GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js_p_o-boot )
>> Detaching after fork from child process 3385.
>> [ 55 of 202] Compiling GHC.IO.Exception[boot] (
>> GHC/IO/Exception.hs-boot, dist/build/GHC/IO/Exception.js_p_o-boot )
>> Detaching after fork from child process 3386.
>> [ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
>> dist/build/Foreign/C/Types.js_p_o )
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
>> includes/rts/storage/ClosureMacros.h:258
>> 258     includes/rts/storage/ClosureMacros.h: No such file or directory.
>> (gdb) bt
>> #0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
>> includes/rts/storage/ClosureMacros.h:258
>> #1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
>> gen=0x4d1fd48) at rts/sm/Scav.c:1400
>> #2  0x000000000425fa13 in scavenge_capability_mut_Lists1
>> (cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
>> #3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
>> do_heap_census=rtsFalse, gc_type=2,
>>     cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
>> #4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
>> task=0x4d32b60, force_major=rtsFalse)
>>     at rts/Schedule.c:1650
>> #5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
>> <MainCapability>, task=0x4d32b60)
>>     at rts/Schedule.c:553
>> #6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
>> ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
>> #7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
>> p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
>> #8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
>> #9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
>> main_closure=0x477f850, rts_config=...)
>>     at rts/RtsMain.c:114
>> #10 0x0000000000408ea7 in main ()
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From carter.schonwald at gmail.com  Wed May 28 18:21:30 2014
From: carter.schonwald at gmail.com (Carter Schonwald)
Date: Wed, 28 May 2014 14:21:30 -0400
Subject: Parallelizing the Weak Pointer Lock
In-Reply-To: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>
References: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>
Message-ID: <CAHYVw0wtJULXdjhTGztLBsNNZXKuh16ZMgr+MN4US96Y5CHT0A@mail.gmail.com>

@Edwardk, ezyang has a ticket on this very topic!
https://ghc.haskell.org/trac/ghc/ticket/9075

(is that what you're thinking?)


On Wed, May 28, 2014 at 7:16 AM, Edward Kmett <ekmett at gmail.com> wrote:

> How hard *would* it be to replace the global weak pointer lock with
> something that scales better?
>
> I'm looking at switching some of my older BDD code into Haskell.
>
> To do so I'd love to be able to use an "intuitive" weak-pointer based
> cache management scheme, but I have to confess the notion of a global lock
> getting in the way basically damns whatever solution I come up with to be a
> single-threaded toy. =/
>
> If I'm trying to sell Haskell's parallelism to others, it seems my only
> winning moves right now are:
>
> 1.) play less satisfying games with typed regions, which scale less well
> than the tried and tested solutions of GCing hash-consed BDD structures.
>
> 2.) just tackle the problem that allocating a weak pointer grabs a global
> lock.
>
> 3.) not to play the game
>
> -Edward
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
>
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From ezyang at mit.edu  Wed May 28 19:03:54 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Wed, 28 May 2014 12:03:54 -0700
Subject: Parallelizing the Weak Pointer Lock
In-Reply-To: <CAHYVw0wtJULXdjhTGztLBsNNZXKuh16ZMgr+MN4US96Y5CHT0A@mail.gmail.com>
References: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>
 <CAHYVw0wtJULXdjhTGztLBsNNZXKuh16ZMgr+MN4US96Y5CHT0A@mail.gmail.com>
Message-ID: <1401303812-sup-8774@sabre>

Yes, this should be easy to fix, it just hasn't been done.

Edward

Excerpts from Carter Schonwald's message of 2014-05-28 11:21:30 -0700:
> @Edwardk, ezyang has a ticket on this very topic!
> https://ghc.haskell.org/trac/ghc/ticket/9075
> 
> (is that what you're thinking?)
> 
> On Wed, May 28, 2014 at 7:16 AM, Edward Kmett <ekmett at gmail.com> wrote:
> 
> > How hard *would* it be to replace the global weak pointer lock with
> > something that scales better?
> >
> > I'm looking at switching some of my older BDD code into Haskell.
> >
> > To do so I'd love to be able to use an "intuitive" weak-pointer based
> > cache management scheme, but I have to confess the notion of a global lock
> > getting in the way basically damns whatever solution I come up with to be a
> > single-threaded toy. =/
> >
> > If I'm trying to sell Haskell's parallelism to others, it seems my only
> > winning moves right now are:
> >
> > 1.) play less satisfying games with typed regions, which scale less well
> > than the tried and tested solutions of GCing hash-consed BDD structures.
> >
> > 2.) just tackle the problem that allocating a weak pointer grabs a global
> > lock.
> >
> > 3.) not to play the game
> >
> > -Edward
> >
> > _______________________________________________
> > ghc-devs mailing list
> > ghc-devs at haskell.org
> > http://www.haskell.org/mailman/listinfo/ghc-devs
> >
> >

From ezyang at mit.edu  Wed May 28 10:21:01 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Wed, 28 May 2014 03:21:01 -0700
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
Message-ID: <1401272281-sup-8185@sabre>

Hey ?mer,

As a first guess, there were a few known segfaults fixed in the ghc-7.8
branch.  Have you tried building GHCJS using this branch?  Could be one
of these three:

    https://ghc.haskell.org/trac/ghc/ticket/9001
    https://ghc.haskell.org/trac/ghc/ticket/9045
    https://ghc.haskell.org/trac/ghc/ticket/9078

Edward

Excerpts from ?mer Sinan A?acan's message of 2014-05-28 03:04:39 -0700:
> Hi all,
> 
> I'm suffering from a RTS bug(probably GC related) that makes making
> progress in my GSoC project impossible. I have very limited knowledge
> of GHC internals and I currently have no idea how to produce a minimal
> program that demonstrates the bug. I wrote how to reproduce it and gdb
> backtrace when segfault happens in a short blog post:
> http://osa1.net/posts/2014-05-27-worst-bug.html . As also written in
> the blog post, changing generation count of generational GC will makes
> the bug disappear in some cases, but it's not a solution.
> 
> I also pasted backtrace output below for those who don't want to click links.
> 
> GHC version used is 7.8.2.
> 
> If anyone give me some pointers to understand what's going wrong or
> how can I produce a simple program that demonstrates the bug, I'd like
> to work on that. I'm basically stuck and I can't make any progress
> with this bug.
> 
> Thanks,
> ?mer
> 
> [  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
> dist/build/GHC/Unicode.js_p_o-boot )
> Detaching after fork from child process 3382.
> [  6 of 202] Compiling GHC.IO[boot]     ( GHC/IO.hs-boot,
> dist/build/GHC/IO.js_p_o-boot )
> Detaching after fork from child process 3383.
> [  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
> dist/build/GHC/Exception.js_p_o-boot )
> Detaching after fork from child process 3384.
> [ 51 of 202] Compiling GHC.Fingerprint[boot] (
> GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js_p_o-boot )
> Detaching after fork from child process 3385.
> [ 55 of 202] Compiling GHC.IO.Exception[boot] (
> GHC/IO/Exception.hs-boot, dist/build/GHC/IO/Exception.js_p_o-boot )
> Detaching after fork from child process 3386.
> [ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
> dist/build/Foreign/C/Types.js_p_o )
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
> includes/rts/storage/ClosureMacros.h:258
> 258     includes/rts/storage/ClosureMacros.h: No such file or directory.
> (gdb) bt
> #0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
> includes/rts/storage/ClosureMacros.h:258
> #1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
> gen=0x4d1fd48) at rts/sm/Scav.c:1400
> #2  0x000000000425fa13 in scavenge_capability_mut_Lists1
> (cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
> #3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
> do_heap_census=rtsFalse, gc_type=2,
>     cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
> #4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
> task=0x4d32b60, force_major=rtsFalse)
>     at rts/Schedule.c:1650
> #5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
> <MainCapability>, task=0x4d32b60)
>     at rts/Schedule.c:553
> #6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
> ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
> #7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
> p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
> #8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
> #9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
> main_closure=0x477f850, rts_config=...)
>     at rts/RtsMain.c:114
> #10 0x0000000000408ea7 in main ()

From marlowsd at gmail.com  Thu May 29 07:17:58 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 29 May 2014 08:17:58 +0100
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <8761l7z6yc.fsf@gmail.com>
References: <8761l7z6yc.fsf@gmail.com>
Message-ID: <5386DF26.7060204@gmail.com>

On 15/05/2014 11:12, Herbert Valerio Riedel wrote:
> Hello GHC devs,
>
> While I refactored the ghc code base to declare LANGUAGE pragmas
> locally, rather than via -X-flags on the GHC commandline, I've noticed
> there were a couple of places where NondecreasingIndentation grammar was used.
>
> What's the current consensus on the use of NondecreasingIndentation? Is
> its use still encouraged?

I like it for things like

    do
      ...
      if exit_early then return () else do
      ... more  stuff ...

Without NondecreasingIndentation this creeps to the right, which isn't a 
good use of whitespace.

Cheers,
Simon


>
> ----
>
> Moreover, I touched several files (over 300) while refactoring, would
> that qualify as "working on this module" in the sense of
>
> | While working on this module you are encouraged to remove it and detab
> | the module (please do the detabbing in a separate patch).
>
> or would that overreach wrt the original intent of the guideline quoted
> above?
>
> Cheers,
>    hvr
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From marlowsd at gmail.com  Thu May 29 07:38:08 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 29 May 2014 08:38:08 +0100
Subject: Parallelizing the Weak Pointer Lock
In-Reply-To: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>
References: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>
Message-ID: <5386E3E0.8020702@gmail.com>

On 28/05/2014 12:16, Edward Kmett wrote:
> How hard /would/ it be to replace the global weak pointer lock with
> something that scales better?
>
> I'm looking at switching some of my older BDD code into Haskell.
>
> To do so I'd love to be able to use an "intuitive" weak-pointer based
> cache management scheme, but I have to confess the notion of a global
> lock getting in the way basically damns whatever solution I come up with
> to be a single-threaded toy. =/
>
> If I'm trying to sell Haskell's parallelism to others, it seems my only
> winning moves right now are:
>
> 1.) play less satisfying games with typed regions, which scale less well
> than the tried and tested solutions of GCing hash-consed BDD structures.
>
> 2.) just tackle the problem that allocating a weak pointer grabs a
> global lock.
>
> 3.) not to play the game

Do you know that the global lock is the bottleneck?  I suggest trying it 
first, if it's not too hard to do the experiment.  Then we'll know how 
big an issue we're dealing with.

Cheers,
Simon

From marlowsd at gmail.com  Thu May 29 08:19:21 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 29 May 2014 09:19:21 +0100
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
Message-ID: <5386ED89.7000400@gmail.com>

Please record the repro steps exactly, including the git hashes of any 
repositories that you use.  If it is a GC bug, the last thing we want is 
for it to disappear, because then we lose the opportunity to find it.

If you could put the build steps into a script that we can run to 
reproduce the error, that will help too.  And as Edward says, if there's 
any way you can find to reduce the test case so that it still fails, 
that's really useful.

Cheers,
Simon

On 28/05/2014 11:04, ?mer Sinan A?acan wrote:
> Hi all,
>
> I'm suffering from a RTS bug(probably GC related) that makes making
> progress in my GSoC project impossible. I have very limited knowledge
> of GHC internals and I currently have no idea how to produce a minimal
> program that demonstrates the bug. I wrote how to reproduce it and gdb
> backtrace when segfault happens in a short blog post:
> http://osa1.net/posts/2014-05-27-worst-bug.html . As also written in
> the blog post, changing generation count of generational GC will makes
> the bug disappear in some cases, but it's not a solution.
>
> I also pasted backtrace output below for those who don't want to click links.
>
> GHC version used is 7.8.2.
>
> If anyone give me some pointers to understand what's going wrong or
> how can I produce a simple program that demonstrates the bug, I'd like
> to work on that. I'm basically stuck and I can't make any progress
> with this bug.
>
> Thanks,
> ?mer
>
> [  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
> dist/build/GHC/Unicode.js_p_o-boot )
> Detaching after fork from child process 3382.
> [  6 of 202] Compiling GHC.IO[boot]     ( GHC/IO.hs-boot,
> dist/build/GHC/IO.js_p_o-boot )
> Detaching after fork from child process 3383.
> [  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
> dist/build/GHC/Exception.js_p_o-boot )
> Detaching after fork from child process 3384.
> [ 51 of 202] Compiling GHC.Fingerprint[boot] (
> GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js_p_o-boot )
> Detaching after fork from child process 3385.
> [ 55 of 202] Compiling GHC.IO.Exception[boot] (
> GHC/IO/Exception.hs-boot, dist/build/GHC/IO/Exception.js_p_o-boot )
> Detaching after fork from child process 3386.
> [ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
> dist/build/Foreign/C/Types.js_p_o )
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
> includes/rts/storage/ClosureMacros.h:258
> 258     includes/rts/storage/ClosureMacros.h: No such file or directory.
> (gdb) bt
> #0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
> includes/rts/storage/ClosureMacros.h:258
> #1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
> gen=0x4d1fd48) at rts/sm/Scav.c:1400
> #2  0x000000000425fa13 in scavenge_capability_mut_Lists1
> (cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
> #3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
> do_heap_census=rtsFalse, gc_type=2,
>      cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
> #4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
> task=0x4d32b60, force_major=rtsFalse)
>      at rts/Schedule.c:1650
> #5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
> <MainCapability>, task=0x4d32b60)
>      at rts/Schedule.c:553
> #6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
> ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
> #7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
> p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
> #8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
> #9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
> main_closure=0x477f850, rts_config=...)
>      at rts/RtsMain.c:114
> #10 0x0000000000408ea7 in main ()
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>

From hvriedel at gmail.com  Thu May 29 09:35:41 2014
From: hvriedel at gmail.com (Herbert Valerio Riedel)
Date: Thu, 29 May 2014 11:35:41 +0200
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <5386DF26.7060204@gmail.com> (Simon Marlow's message of "Thu, 29
 May 2014 08:17:58 +0100")
References: <8761l7z6yc.fsf@gmail.com> <5386DF26.7060204@gmail.com>
Message-ID: <87vbsp2ahe.fsf@gmail.com>

On 2014-05-29 at 09:17:58 +0200, Simon Marlow wrote:
>> While I refactored the ghc code base to declare LANGUAGE pragmas
>> locally, rather than via -X-flags on the GHC commandline, I've noticed
>> there were a couple of places where NondecreasingIndentation grammar was used.
>>
>> What's the current consensus on the use of NondecreasingIndentation? Is
>> its use still encouraged?
>
> I like it for things like
>
>    do
>      ...
>      if exit_early then return () else do
>      ... more  stuff ...
>
> Without NondecreasingIndentation this creeps to the right, which isn't
> a good use of whitespace.

I see, so NondecreasingIndentation is mostly used to simulate
early-returns?


From ekmett at gmail.com  Thu May 29 09:37:39 2014
From: ekmett at gmail.com (Edward Kmett)
Date: Thu, 29 May 2014 05:37:39 -0400
Subject: Parallelizing the Weak Pointer Lock
In-Reply-To: <5386E3E0.8020702@gmail.com>
References: <CAJumaK-GOqsOH_mkK83f+VLr9wN4J8Ow-6=cZDjOf34nGtjFow@mail.gmail.com>
 <5386E3E0.8020702@gmail.com>
Message-ID: <CAJumaK-T2vnP27aD0EzbaxEHAW1grB_1yQ1xOUDRyGr30m--4Q@mail.gmail.com>

I actually don't know that it would be the bottleneck if I ported it to
Haskell at this time, as lots of other things will change speed, and I may
lose for other reasons: The memory layout is less efficient, the cache
management overhead is higher, etc.

I do know that if I were to reintroduced a global lock on the BDD cache in
the current implementation I have in C++ which I'm looking at porting to
Haskell, it definitely would be a throughput bottleneck as that was
precisely what I had to fix to make it fast in the first place. =) I
originally had a single lock between me and the BDD cache and couldn't
scale up nicely to multiple cores.

There, in order to get decent scaling, I had to carefully split out out my
cache Herlihy-style into a bunch of separate locks I hash down to, in order
to get decent concurrency and the speedup was quite dramatic.

But replicating that logic here it does a lot less good, as I'll wind up
just waiting on a different lock to create the weak reference whenever I
need to instantiate a new variable split in the BDD.

Now, that isn't entirely apples-to-apples. In theory if I have a high
enough hit rate on the hash-cons table for my BDDs then I'm producing a lot
fewer new weak references from scratch than hits against the BDD cache.

So if I get a 65% hit rate, I only get 35% of the benefit from a fully
parallel-friendly weak reference creation, but even a 35% regression from
the current scaling I have to the original scaling I had would be pretty
bad.

-Edward


On Thu, May 29, 2014 at 3:38 AM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 28/05/2014 12:16, Edward Kmett wrote:
>
>> How hard /would/ it be to replace the global weak pointer lock with
>>
>> something that scales better?
>>
>> I'm looking at switching some of my older BDD code into Haskell.
>>
>> To do so I'd love to be able to use an "intuitive" weak-pointer based
>> cache management scheme, but I have to confess the notion of a global
>> lock getting in the way basically damns whatever solution I come up with
>> to be a single-threaded toy. =/
>>
>> If I'm trying to sell Haskell's parallelism to others, it seems my only
>> winning moves right now are:
>>
>> 1.) play less satisfying games with typed regions, which scale less well
>> than the tried and tested solutions of GCing hash-consed BDD structures.
>>
>> 2.) just tackle the problem that allocating a weak pointer grabs a
>> global lock.
>>
>> 3.) not to play the game
>>
>
> Do you know that the global lock is the bottleneck?  I suggest trying it
> first, if it's not too hard to do the experiment.  Then we'll know how big
> an issue we're dealing with.
>
> Cheers,
> Simon
>
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From stegeman at gmail.com  Thu May 29 15:27:32 2014
From: stegeman at gmail.com (Luite Stegeman)
Date: Thu, 29 May 2014 17:27:32 +0200
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <5386ED89.7000400@gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
 <5386ED89.7000400@gmail.com>
Message-ID: <CALqQuogBfBbRDszDdF=s0zjAxxF0P=EtZOHVFVON+d-Xdqs63g@mail.gmail.com>

Oops last time I checked I hadn't cherry-picked the #9078 fix. Retested
with that and it still segfaults.

Unfortunately we haven't found a smaller test case yet. We've been using
Vagrant for repeatable test runs for GHCJS in the past. Would a Vagrant
script for reproducing the crash be ok?

luite



On Thu, May 29, 2014 at 10:19 AM, Simon Marlow <marlowsd at gmail.com> wrote:

> Please record the repro steps exactly, including the git hashes of any
> repositories that you use.  If it is a GC bug, the last thing we want is
> for it to disappear, because then we lose the opportunity to find it.
>
> If you could put the build steps into a script that we can run to
> reproduce the error, that will help too.  And as Edward says, if there's
> any way you can find to reduce the test case so that it still fails, that's
> really useful.
>
> Cheers,
> Simon
>
>
> On 28/05/2014 11:04, ?mer Sinan A?acan wrote:
>
>> Hi all,
>>
>> I'm suffering from a RTS bug(probably GC related) that makes making
>> progress in my GSoC project impossible. I have very limited knowledge
>> of GHC internals and I currently have no idea how to produce a minimal
>> program that demonstrates the bug. I wrote how to reproduce it and gdb
>> backtrace when segfault happens in a short blog post:
>> http://osa1.net/posts/2014-05-27-worst-bug.html . As also written in
>> the blog post, changing generation count of generational GC will makes
>> the bug disappear in some cases, but it's not a solution.
>>
>> I also pasted backtrace output below for those who don't want to click
>> links.
>>
>> GHC version used is 7.8.2.
>>
>> If anyone give me some pointers to understand what's going wrong or
>> how can I produce a simple program that demonstrates the bug, I'd like
>> to work on that. I'm basically stuck and I can't make any progress
>> with this bug.
>>
>> Thanks,
>> ?mer
>>
>> [  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
>> dist/build/GHC/Unicode.js_p_o-boot )
>> Detaching after fork from child process 3382.
>> [  6 of 202] Compiling GHC.IO[boot]     ( GHC/IO.hs-boot,
>> dist/build/GHC/IO.js_p_o-boot )
>> Detaching after fork from child process 3383.
>> [  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
>> dist/build/GHC/Exception.js_p_o-boot )
>> Detaching after fork from child process 3384.
>> [ 51 of 202] Compiling GHC.Fingerprint[boot] (
>> GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js_p_o-boot )
>> Detaching after fork from child process 3385.
>> [ 55 of 202] Compiling GHC.IO.Exception[boot] (
>> GHC/IO/Exception.hs-boot, dist/build/GHC/IO/Exception.js_p_o-boot )
>> Detaching after fork from child process 3386.
>> [ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
>> dist/build/Foreign/C/Types.js_p_o )
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
>> includes/rts/storage/ClosureMacros.h:258
>> 258     includes/rts/storage/ClosureMacros.h: No such file or directory.
>> (gdb) bt
>> #0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
>> includes/rts/storage/ClosureMacros.h:258
>> #1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
>> gen=0x4d1fd48) at rts/sm/Scav.c:1400
>> #2  0x000000000425fa13 in scavenge_capability_mut_Lists1
>> (cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
>> #3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
>> do_heap_census=rtsFalse, gc_type=2,
>>      cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
>> #4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
>> task=0x4d32b60, force_major=rtsFalse)
>>      at rts/Schedule.c:1650
>> #5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
>> <MainCapability>, task=0x4d32b60)
>>      at rts/Schedule.c:553
>> #6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
>> ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
>> #7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
>> p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
>> #8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
>> #9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
>> main_closure=0x477f850, rts_config=...)
>>      at rts/RtsMain.c:114
>> #10 0x0000000000408ea7 in main ()
>> _______________________________________________
>> ghc-devs mailing list
>> ghc-devs at haskell.org
>> http://www.haskell.org/mailman/listinfo/ghc-devs
>>
>>  _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From marlowsd at gmail.com  Thu May 29 15:41:55 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 29 May 2014 16:41:55 +0100
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <CALqQuogBfBbRDszDdF=s0zjAxxF0P=EtZOHVFVON+d-Xdqs63g@mail.gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>	<5386ED89.7000400@gmail.com>
 <CALqQuogBfBbRDszDdF=s0zjAxxF0P=EtZOHVFVON+d-Xdqs63g@mail.gmail.com>
Message-ID: <53875543.9010804@gmail.com>

Yeah, vagrant would be fine.

Do you have any FFI or other strange things in GHCJS that might 
conceivably cause this?

Cheers
Simon

On 29/05/2014 16:27, Luite Stegeman wrote:
> Oops last time I checked I hadn't cherry-picked the #9078 fix. Retested
> with that and it still segfaults.
>
> Unfortunately we haven't found a smaller test case yet. We've been using
> Vagrant for repeatable test runs for GHCJS in the past. Would a Vagrant
> script for reproducing the crash be ok?
>
> luite
>
>
>
> On Thu, May 29, 2014 at 10:19 AM, Simon Marlow <marlowsd at gmail.com
> <mailto:marlowsd at gmail.com>> wrote:
>
>     Please record the repro steps exactly, including the git hashes of
>     any repositories that you use.  If it is a GC bug, the last thing we
>     want is for it to disappear, because then we lose the opportunity to
>     find it.
>
>     If you could put the build steps into a script that we can run to
>     reproduce the error, that will help too.  And as Edward says, if
>     there's any way you can find to reduce the test case so that it
>     still fails, that's really useful.
>
>     Cheers,
>     Simon
>
>
>     On 28/05/2014 11:04, ?mer Sinan A?acan wrote:
>
>         Hi all,
>
>         I'm suffering from a RTS bug(probably GC related) that makes making
>         progress in my GSoC project impossible. I have very limited
>         knowledge
>         of GHC internals and I currently have no idea how to produce a
>         minimal
>         program that demonstrates the bug. I wrote how to reproduce it
>         and gdb
>         backtrace when segfault happens in a short blog post:
>         http://osa1.net/posts/2014-05-__27-worst-bug.html
>         <http://osa1.net/posts/2014-05-27-worst-bug.html> . As also
>         written in
>         the blog post, changing generation count of generational GC will
>         makes
>         the bug disappear in some cases, but it's not a solution.
>
>         I also pasted backtrace output below for those who don't want to
>         click links.
>
>         GHC version used is 7.8.2.
>
>         If anyone give me some pointers to understand what's going wrong or
>         how can I produce a simple program that demonstrates the bug,
>         I'd like
>         to work on that. I'm basically stuck and I can't make any progress
>         with this bug.
>
>         Thanks,
>         ?mer
>
>         [  5 of 202] Compiling GHC.Unicode[boot] ( GHC/Unicode.hs-boot,
>         dist/build/GHC/Unicode.js_p_o-__boot )
>         Detaching after fork from child process 3382.
>         [  6 of 202] Compiling GHC.IO <http://GHC.IO>[boot]     (
>         GHC/IO.hs-boot,
>         dist/build/GHC/IO.js_p_o-boot )
>         Detaching after fork from child process 3383.
>         [  7 of 202] Compiling GHC.Exception[boot] ( GHC/Exception.lhs-boot,
>         dist/build/GHC/Exception.js_p___o-boot )
>         Detaching after fork from child process 3384.
>         [ 51 of 202] Compiling GHC.Fingerprint[boot] (
>         GHC/Fingerprint.hs-boot, dist/build/GHC/Fingerprint.js___p_o-boot )
>         Detaching after fork from child process 3385.
>         [ 55 of 202] Compiling GHC.IO.Exception[boot] (
>         GHC/IO/Exception.hs-boot,
>         dist/build/GHC/IO/Exception.__js_p_o-boot )
>         Detaching after fork from child process 3386.
>         [ 75 of 202] Compiling Foreign.C.Types  ( Foreign/C/Types.hs,
>         dist/build/Foreign/C/Types.js___p_o )
>
>         Program received signal SIGSEGV, Segmentation fault.
>         0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
>         includes/rts/storage/__ClosureMacros.h:258
>         258     includes/rts/storage/__ClosureMacros.h: No such file or
>         directory.
>         (gdb) bt
>         #0  0x000000000425d5c4 in LOOKS_LIKE_CLOSURE_PTR (p=0x0) at
>         includes/rts/storage/__ClosureMacros.h:258
>         #1  0x000000000425f776 in scavenge_mutable_list1 (bd=0x7fffe5c02a00,
>         gen=0x4d1fd48) at rts/sm/Scav.c:1400
>         #2  0x000000000425fa13 in scavenge_capability_mut_Lists1
>         (cap=0x4cfe5c0 <MainCapability>) at rts/sm/Scav.c:1493
>         #3  0x0000000004256b66 in GarbageCollect (collect_gen=0,
>         do_heap_census=rtsFalse, gc_type=2,
>               cap=0x4cfe5c0 <MainCapability>) at rts/sm/GC.c:342
>         #4  0x00000000042454a3 in scheduleDoGC (pcap=0x7fffffffc198,
>         task=0x4d32b60, force_major=rtsFalse)
>               at rts/Schedule.c:1650
>         #5  0x0000000004243de4 in schedule (initialCapability=0x4cfe5c0
>         <MainCapability>, task=0x4d32b60)
>               at rts/Schedule.c:553
>         #6  0x0000000004246436 in scheduleWaitThread (tso=0x7ffff6708d60,
>         ret=0x0, pcap=0x7fffffffc2c0) at rts/Schedule.c:2346
>         #7  0x000000000423e9b4 in rts_evalLazyIO (cap=0x7fffffffc2c0,
>         p=0x477f850, ret=0x0) at rts/RtsAPI.c:500
>         #8  0x0000000004241666 in real_main () at rts/RtsMain.c:63
>         #9  0x0000000004241759 in hs_main (argc=237, argv=0x7fffffffc448,
>         main_closure=0x477f850, rts_config=...)
>               at rts/RtsMain.c:114
>         #10 0x0000000000408ea7 in main ()
>         _________________________________________________
>         ghc-devs mailing list
>         ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>         http://www.haskell.org/__mailman/listinfo/ghc-devs
>         <http://www.haskell.org/mailman/listinfo/ghc-devs>
>
>     _________________________________________________
>     ghc-devs mailing list
>     ghc-devs at haskell.org <mailto:ghc-devs at haskell.org>
>     http://www.haskell.org/__mailman/listinfo/ghc-devs
>     <http://www.haskell.org/mailman/listinfo/ghc-devs>
>
>

From marlowsd at gmail.com  Thu May 29 15:45:57 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Thu, 29 May 2014 16:45:57 +0100
Subject: NondecreasingIndentation (& de-tabbing several .hs files)
In-Reply-To: <87vbsp2ahe.fsf@gmail.com>
References: <8761l7z6yc.fsf@gmail.com> <5386DF26.7060204@gmail.com>
 <87vbsp2ahe.fsf@gmail.com>
Message-ID: <53875635.4030006@gmail.com>

On 29/05/2014 10:35, Herbert Valerio Riedel wrote:
> On 2014-05-29 at 09:17:58 +0200, Simon Marlow wrote:
>>> While I refactored the ghc code base to declare LANGUAGE pragmas
>>> locally, rather than via -X-flags on the GHC commandline, I've noticed
>>> there were a couple of places where NondecreasingIndentation grammar was used.
>>>
>>> What's the current consensus on the use of NondecreasingIndentation? Is
>>> its use still encouraged?
>>
>> I like it for things like
>>
>>     do
>>       ...
>>       if exit_early then return () else do
>>       ... more  stuff ...
>>
>> Without NondecreasingIndentation this creeps to the right, which isn't
>> a good use of whitespace.
>
> I see, so NondecreasingIndentation is mostly used to simulate
> early-returns?

I suspect that's what I mostly use it for.  Simon PJ likes braces and 
semicolons instead :-)

It's not a big deal, but I don't see a strong argument for getting rid 
of it either.

Cheers,
Simon


From stegeman at gmail.com  Thu May 29 15:50:02 2014
From: stegeman at gmail.com (Luite Stegeman)
Date: Thu, 29 May 2014 17:50:02 +0200
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <53875543.9010804@gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
 <5386ED89.7000400@gmail.com>
 <CALqQuogBfBbRDszDdF=s0zjAxxF0P=EtZOHVFVON+d-Xdqs63g@mail.gmail.com>
 <53875543.9010804@gmail.com>
Message-ID: <CALqQuoitNq_dhPr8DwM-BVNLqpB=SVBsGiOU6Va+vQyO=NZdEg@mail.gmail.com>

On Thu, May 29, 2014 at 5:41 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> Yeah, vagrant would be fine.
>
> Do you have any FFI or other strange things in GHCJS that might
> conceivably cause this?


Not in GHCJS itself as far as I know, but its dependency list is rather
long, unfortunately.

luite
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From ezyang at mit.edu  Fri May 30 00:55:35 2014
From: ezyang at mit.edu (Edward Z. Yang)
Date: Thu, 29 May 2014 17:55:35 -0700
Subject: Proposal: run GHC API tests on fast
Message-ID: <1401411058-sup-8260@sabre>

Currently, most GHC API tests are not run on 'make fast',
ostensibly because linking against the GHC API can take a while.
I propose that change this, and run GHC API tests by default.
Reasons:

1. The GHC API is closely tied a lot of internal structure of GHC, so
it's very easy to make a change, track it through the rest of the
compiler, but forget to update the tests/documentation.

2. We can boost this into poor man's testable documentation.  The idea
is to duplicate all GHC API examples in the manual in the test suite,
and have a comment on all of the examples asking the developer to update
the manual. (Or we could automatically extract the snippets from the
manual, but that's work and this I could do in a few minutes.)

3. I don't think running these tests will add that much extra run
time to the test suite; certainly interactively the time spent linking
is unnoticeable.

Let's set a one week discussion period for this proposal.

Thanks,
Edward

From simonpj at microsoft.com  Fri May 30 09:28:11 2014
From: simonpj at microsoft.com (Simon Peyton Jones)
Date: Fri, 30 May 2014 09:28:11 +0000
Subject: [GHC] #9153: TcCoercible test is failing with context reduction
 stack overflow
In-Reply-To: <045.f5d79c915ee5723d2f4d907329f0b069@haskell.org>
References: <045.f5d79c915ee5723d2f4d907329f0b069@haskell.org>
Message-ID: <618BE556AADD624C9C918AA5D5911BEF103B839B@DB3PRD3001MB020.064d.mgd.msft.net>

Thanks for this.

I've improved Note [Order of Coercible Instances] in TcInteract

Generally, it's much better to give an actual, concrete example in the Note, and refer to the ticket for additional background.  It took me a few minutes to re-read the long #9117 to reconstruct the example that precisely illustrates the Note.

Simon

| -----Original Message-----
| From: ghc-tickets [mailto:ghc-tickets-bounces at haskell.org] On Behalf Of
| GHC
| Sent: 30 May 2014 01:35
| Cc: ghc-tickets at haskell.org
| Subject: [GHC] #9153: TcCoercible test is failing with context reduction
| stack overflow
| 
| #9153: TcCoercible test is failing with context reduction stack overflow
| ------------------------------------+-----------------------------------
| ------------------------------------+--
|        Reporter:  ezyang            |             Owner:
|            Type:  bug               |            Status:  new
|        Priority:  low               |         Milestone:
|       Component:  Test Suite        |           Version:  7.9
|        Keywords:                    |  Operating System:
| Unknown/Multiple
|    Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
|      Difficulty:  Unknown           |         Test Case:
|      Blocked By:                    |          Blocking:
| Related Tickets:                    |
| ------------------------------------+-----------------------------------
| ------------------------------------+--
|  Here is the error:
| 
|  {{{
|  TcCoercible.hs:62:12:
|      Context reduction stack overflow; size = 21
|      Use -fcontext-stack=N to increase stack size to N
|        Coercible Int Int
|      In the expression: coerce
|      In the first argument of ?print?, namely
|        ?(coerce $ (FixEither (Left age) :: FixEither Age) ::
|            Either Int (FixEither Int))?
|      In a stmt of a 'do' block:
|        print
|          (coerce $ (FixEither (Left age) :: FixEither Age) ::
|             Either Int (FixEither Int))
|  }}}
| 
|  I do not know enough to know if bumping the stack size is correct.
| 
|  Additionally, when run as GHCi I get:
| 
|  {{{
|  =====> TcCoercible(ghci) 2784 of 3970 [0, 7, 0]  cd
| ./typecheck/should_run && '/home/hs01/ezyang/ghc-validate/inplace/bin
|  /ghc-stage2' -fforce-re
|  comp -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -
| rtsopts  -fno-ghci-history Tc  Coercible.hs --interactive -v0 -ignore-
| dot-ghci +RTS -I0.1 -RTS  <TcCoercible.genscript 1>TcCo
| ercible.interp.stdout 2>TcCoercible.interp.stderr  Actual stderr output
| differs from expected:
|  --- /dev/null   2014-02-15 17:35:19.578872448 -0800
|  +++ ./typecheck/should_run/TcCoercible.run.stderr       2014-05-29
|  16:27:30.476701835 -0700
|  @@ -0,0 +1,2 @@
|  +
|  +TcCoercible:7:30: Not in scope: ?Main.main?
|  }}}
| 
| --
| Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9153>
| GHC <http://www.haskell.org/ghc/>
| The Glasgow Haskell Compiler
| _______________________________________________
| ghc-tickets mailing list
| ghc-tickets at haskell.org
| http://www.haskell.org/mailman/listinfo/ghc-tickets

From mail at joachim-breitner.de  Fri May 30 10:34:09 2014
From: mail at joachim-breitner.de (Joachim Breitner)
Date: Fri, 30 May 2014 12:34:09 +0200
Subject: [GHC] #9153: TcCoercible test is failing with context reduction
 stack overflow
In-Reply-To: <618BE556AADD624C9C918AA5D5911BEF103B839B@DB3PRD3001MB020.064d.mgd.msft.net>
References: <045.f5d79c915ee5723d2f4d907329f0b069@haskell.org>
 <618BE556AADD624C9C918AA5D5911BEF103B839B@DB3PRD3001MB020.064d.mgd.msft.net>
Message-ID: <1401446049.14902.6.camel@kirk>

Hi,

Am Freitag, den 30.05.2014, 09:28 +0000 schrieb Simon Peyton Jones:
> I've improved Note [Order of Coercible Instances] in TcInteract
> 
> Generally, it's much better to give an actual, concrete example in the
> Note, and refer to the ticket for additional background.  It took me a
> few minutes to re-read the long #9117 to reconstruct the example that
> precisely illustrates the Note.

thanks. I did explicitly reference the example in the T9117 test case,
and given my tendency to avoid redundancies, I did not copy it into the
Note as well. But I see that reader?s convenience is more important
here.

Greetings,
Joachim

-- 
Joachim ?nomeata? Breitner
  mail at joachim-breitner.de ? http://www.joachim-breitner.de/
  Jabber: nomeata at joachim-breitner.de  ? GPG-Key: 0xF0FBF51F
  Debian Developer: nomeata at debian.org

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From omeragacan at gmail.com  Fri May 30 11:37:25 2014
From: omeragacan at gmail.com (=?UTF-8?Q?=C3=96mer_Sinan_A=C4=9Facan?=)
Date: Fri, 30 May 2014 14:37:25 +0300
Subject: segfault in RTS - can anyone help me tracking this bug down?
In-Reply-To: <CALqQuoitNq_dhPr8DwM-BVNLqpB=SVBsGiOU6Va+vQyO=NZdEg@mail.gmail.com>
References: <CAMQQO3=iOwd7m8Acnd-9Z+pjghrtLOcKqcs19rQcesxE8CSSEA@mail.gmail.com>
 <5386ED89.7000400@gmail.com>
 <CALqQuogBfBbRDszDdF=s0zjAxxF0P=EtZOHVFVON+d-Xdqs63g@mail.gmail.com>
 <53875543.9010804@gmail.com>
 <CALqQuoitNq_dhPr8DwM-BVNLqpB=SVBsGiOU6Va+vQyO=NZdEg@mail.gmail.com>
Message-ID: <CAMQQO3mAvJWrj75j9+dSXc=FgMTnw=qw=de7ObvufbUKUdi=zQ@mail.gmail.com>

Hi all,

Here's an update. While playing with some parameters I managed to
produce a case where compilation still fails, but this time with an
assertion error instead of a segfault:

... snipped ...
[112 of 202] Compiling System.Posix.Types ( System/Posix/Types.hs,
dist/build/System/Posix/Types.js_p_o )
ghcjs: internal error: ASSERTION FAILED: file rts/sm/Scav.c, line 1400

    (GHC version 7.8.2 for x86_64_unknown_linux)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Program received signal SIGABRT, Aborted.
0x00007ffff687f849 in raise () from /lib64/libc.so.6
(gdb) bt
#0  0x00007ffff687f849 in raise () from /lib64/libc.so.6
#1  0x00007ffff6880cd8 in abort () from /lib64/libc.so.6
#2  0x0000000004238a27 in rtsFatalInternalErrorFn (s=0x4554e60
"ASSERTION FAILED: file %s, line %u\n",
    ap=0x7fffffffbe58) at rts/RtsMessages.c:170
#3  0x000000000423865f in barf (s=0x4554e60 "ASSERTION FAILED: file
%s, line %u\n") at rts/RtsMessages.c:42
#4  0x00000000042386c2 in _assertFail (filename=0x4559fbd
"rts/sm/Scav.c", linenum=1400) at rts/RtsMessages.c:57
#5  0x00000000042565e9 in scavenge_mutable_list1 (bd=0x7fffe7402dc0,
gen=0x4d15d88) at rts/sm/Scav.c:1400
#6  0x0000000004256873 in scavenge_capability_mut_Lists1
(cap=0x4cf49c0 <MainCapability>) at rts/sm/Scav.c:1493
#7  0x000000000424d9c6 in GarbageCollect (collect_gen=0,
do_heap_census=rtsFalse, gc_type=2,
    cap=0x4cf49c0 <MainCapability>) at rts/sm/GC.c:342
#8  0x000000000423c303 in scheduleDoGC (pcap=0x7fffffffc188,
task=0x4d28ba0, force_major=rtsFalse)
    at rts/Schedule.c:1650
#9  0x000000000423ac44 in schedule (initialCapability=0x4cf49c0
<MainCapability>, task=0x4d28ba0)
    at rts/Schedule.c:553
#10 0x000000000423d296 in scheduleWaitThread (tso=0x7ffff6708d60,
ret=0x0, pcap=0x7fffffffc2b0) at rts/Schedule.c:2346
#11 0x0000000004235814 in rts_evalLazyIO (cap=0x7fffffffc2b0,
p=0x4776850, ret=0x0) at rts/RtsAPI.c:500
#12 0x00000000042384c6 in real_main () at rts/RtsMain.c:63
#13 0x00000000042385b9 in hs_main (argc=238, argv=0x7fffffffc438,
main_closure=0x4776850, rts_config=...)
    at rts/RtsMain.c:114
#14 0x0000000000408ea7 in main ()

I'm not sure if that helps but I just wanted to share in case it
helps. I'm currently trying to come up with a single file that causes
this problem.

---
?mer Sinan A?acan
http://osa1.net


2014-05-29 18:50 GMT+03:00 Luite Stegeman <stegeman at gmail.com>:
>
>
>
> On Thu, May 29, 2014 at 5:41 PM, Simon Marlow <marlowsd at gmail.com> wrote:
>>
>> Yeah, vagrant would be fine.
>>
>> Do you have any FFI or other strange things in GHCJS that might
>> conceivably cause this?
>
>
> Not in GHCJS itself as far as I know, but its dependency list is rather
> long, unfortunately.
>
> luite
>

From marlowsd at gmail.com  Fri May 30 21:46:27 2014
From: marlowsd at gmail.com (Simon Marlow)
Date: Fri, 30 May 2014 22:46:27 +0100
Subject: GHC 7.8.3 release
In-Reply-To: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
Message-ID: <5388FC33.3040004@gmail.com>

On 27/05/14 09:06, Austin Seipp wrote:
> PPS: This might also impact the 7.10 schedule, but last Simon and I
> talked, we thought perhaps shooting for ICFP this time (and actually
> hitting it) was a good plan. So I'd estimate on that a 7.8.4 might
> happen a few months from now, after summer.

FWIW, I think doing 7.10 in October is way too soon.  Major releases 
create a large distributed effort for package maintainers and users, and 
there are other knock-on effects, so we shouldn't do them too often.  A 
lot of our users want stability, while many of them also want progress, 
and 12 months between major releases is the compromise we settled on.

The last major release slipped for various reasons, but I don't believe 
that means we should try to get back on track by having a short time 
between 7.8 and 7.10.  7.8 will be out of maintenance when it has only 
just made it into a platform release.

Anyway, that's my opinion.  Of course if everyone says they don't mind a 
7.10 in October then I withdraw my objection :-)

(as a data point, upgrading to 7.8 at work cost me three weeks, but 
we're probably a special case)

Cheers,
Simon


From andrew.gibiansky at gmail.com  Sat May 31 03:09:05 2014
From: andrew.gibiansky at gmail.com (Andrew Gibiansky)
Date: Fri, 30 May 2014 23:09:05 -0400
Subject: Expose Other Parsers for GHC API
Message-ID: <CAF-LYKJt_K8EkFJy5STVmWccesRagZb2ic=6eSs9nbQT+L7a1w@mail.gmail.com>

Hello,

I would like to be able to use the GHC API for parsing. Right now this is
in the Parser and Lexer modules:

Parser:
http://www.haskell.org/ghc/docs/7.8.2/html/libraries/ghc-7.8.2/Parser.html
Lexer:
http://www.haskell.org/ghc/docs/7.8.2/html/libraries/ghc-7.8.2/Lexer.html

GHC currently exposes only a few parsers here. I'd like to make a few
modifications:

1. Expose a few more parsers than currently are exposed in the Parser
module. In particular, I'd like import statements, type signatures,
declarations, and expressions, at least, in addition to what's already
there.

2. Re-export some things from Lexer from Parser, since they're reused. This
would include unP, PState, and the 2-3 other core things you *have* to use
in order to use the GHC Parser.

3. Add some Haddock documentation to the top of the Parser module
describing how to use it, since the types themselves are pretty opaque here.

I think (1) and (3) are definitely a good idea, not so sure about (2)
though IMHO it would be convenient for using the Parser.

Would this make for an acceptable patch? Thoughts?

-- Andrew Gibiansky
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From george.colpitts at gmail.com  Sat May 31 12:28:19 2014
From: george.colpitts at gmail.com (George Colpitts)
Date: Sat, 31 May 2014 09:28:19 -0300
Subject: GHC 7.8.3 release
In-Reply-To: <5388FC33.3040004@gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <5388FC33.3040004@gmail.com>
Message-ID: <CAB-d4A58hvj+SaEnQRW6xB39-1f9N5aXac+A595V3a7TAS4FQw@mail.gmail.com>

+1

Stability is very important.

Also, do we have an ETA for when we will have an improved infrastructure
for automated builds and the associated tests. I think this would help a
lot with stability and  shorten the time to the next release.


On Fri, May 30, 2014 at 6:46 PM, Simon Marlow <marlowsd at gmail.com> wrote:

> On 27/05/14 09:06, Austin Seipp wrote:
>
>> PPS: This might also impact the 7.10 schedule, but last Simon and I
>> talked, we thought perhaps shooting for ICFP this time (and actually
>> hitting it) was a good plan. So I'd estimate on that a 7.8.4 might
>> happen a few months from now, after summer.
>>
>
> FWIW, I think doing 7.10 in October is way too soon.  Major releases
> create a large distributed effort for package maintainers and users, and
> there are other knock-on effects, so we shouldn't do them too often.  A lot
> of our users want stability, while many of them also want progress, and 12
> months between major releases is the compromise we settled on.
>
> The last major release slipped for various reasons, but I don't believe
> that means we should try to get back on track by having a short time
> between 7.8 and 7.10.  7.8 will be out of maintenance when it has only just
> made it into a platform release.
>
> Anyway, that's my opinion.  Of course if everyone says they don't mind a
> 7.10 in October then I withdraw my objection :-)
>
> (as a data point, upgrading to 7.8 at work cost me three weeks, but we're
> probably a special case)
>
> Cheers,
> Simon
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs
>
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From george.colpitts at gmail.com  Sat May 31 16:29:24 2014
From: george.colpitts at gmail.com (George Colpitts)
Date: Sat, 31 May 2014 13:29:24 -0300
Subject: [GHC] #8736: GHCi doesn't load .dyn_o files appropriately
In-Reply-To: <067.7678721df94dae14b21b801a1cb46951@haskell.org>
References: <052.b282b771a49ddd09f40719b07cb558fa@haskell.org>
 <067.7678721df94dae14b21b801a1cb46951@haskell.org>
Message-ID: <CAB-d4A4DshzXU5NGksGBLpUzBfmUHsVA=GgMCoJFz7LrjWwc2w@mail.gmail.com>

Please ignore my previous message, I was compiling with -DYNAMIC instead of
-dynamic


On Sat, May 31, 2014 at 12:39 PM, GHC <ghc-devs at haskell.org> wrote:

> #8736: GHCi doesn't load .dyn_o files appropriately
> -------------------------------------+------------------------------------
>         Reporter:  thoughtpolice     |            Owner:  thoughtpolice
>             Type:  bug               |           Status:  new
>         Priority:  high              |        Milestone:  7.8.3
>        Component:  Compiler          |          Version:  7.8.1-rc2
>       Resolution:                    |         Keywords:
> Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
>  Type of failure:  None/Unknown      |       Difficulty:  Unknown
>        Test Case:                    |       Blocked By:
>         Blocking:                    |  Related Tickets:
> -------------------------------------+------------------------------------
>
> Comment (by George):
>
>  Replying to [comment:4 simonpj]:
>  > Summarising the behaviour.  If you say `:load Foo` in GHCi
>  >  * `Foo` was compiled with `-dynamic`: loads `Foo.o`
>  >  * `Foo` was compiled without any dynamic flag: does not find object
>  files, so interprets.
>  >  * `Foo` was compiled with `-dynamic-too`: fails as above.
>  >
>  > Not a release blocker.
>  >
>
>  The first case
>
>  >  * `Foo` was compiled with `-dynamic`: loads `Foo.o`
>
>  does not seem to be the case in 7.8.2, at least on the Mac where the .o
>  file does not get loaded
>
>  {{{
>   ghc --make -O2 -DYNAMIC pfp1.hs
>  [1 of 1] Compiling Main             ( pfp1.hs, pfp1.o )
>  Linking pfp1 ...
>  bash-3.2$ ghci -ignore-dot-ghci
>  GHCi, version 7.8.2: http://www.haskell.org/ghc/  :? for help
>  Loading package ghc-prim ... linking ... done.
>  Loading package integer-gmp ... linking ... done.
>  Loading package base ... linking ... done.
>  Prelude> :load pfp1
>  [1 of 1] Compiling Main             ( pfp1.hs, interpreted )
>  Ok, modules loaded: Main.
>  }}}
>
>  Should I file a bug?
>
> --
> Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8736#comment:9>
> GHC <http://www.haskell.org/ghc/>
> The Glasgow Haskell Compiler
>
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From alain.odea at gmail.com  Sat May 31 20:54:26 2014
From: alain.odea at gmail.com (Alain O'Dea)
Date: Sat, 31 May 2014 20:54:26 +0000
Subject: GHC 7.8.3 release
In-Reply-To: <CAB-d4A58hvj+SaEnQRW6xB39-1f9N5aXac+A595V3a7TAS4FQw@mail.gmail.com>
References: <CAEs96n3qyYjF9vVpScVhrGmEUX+ofrjiD-vQCLSpa=9CPYHuPw@mail.gmail.com>
 <5388FC33.3040004@gmail.com>
 <CAB-d4A58hvj+SaEnQRW6xB39-1f9N5aXac+A595V3a7TAS4FQw@mail.gmail.com>
Message-ID: <538A4182.9030702@gmail.com>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 05/31/2014 12:28 PM, George Colpitts wrote:
> +1
> 
> Stability is very important.
> 
> Also, do we have an ETA for when we will have an improved
> infrastructure for automated builds and the associated tests. I
> think this would help a lot with stability and  shorten the time to
> the next release.
> 
> 
> On Fri, May 30, 2014 at 6:46 PM, Simon Marlow <marlowsd at gmail.com 
> <mailto:marlowsd at gmail.com>> wrote:
> 
> On 27/05/14 09:06, Austin Seipp wrote:
> 
> PPS: This might also impact the 7.10 schedule, but last Simon and
> I talked, we thought perhaps shooting for ICFP this time (and
> actually hitting it) was a good plan. So I'd estimate on that a
> 7.8.4 might happen a few months from now, after summer.
> 
> 
> FWIW, I think doing 7.10 in October is way too soon.  Major
> releases create a large distributed effort for package maintainers
> and users, and there are other knock-on effects, so we shouldn't do
> them too often.  A lot of our users want stability, while many of
> them also want progress, and 12 months between major releases is
> the compromise we settled on.
> 
> The last major release slipped for various reasons, but I don't 
> believe that means we should try to get back on track by having a 
> short time between 7.8 and 7.10.  7.8 will be out of maintenance 
> when it has only just made it into a platform release.
> 
> Anyway, that's my opinion.  Of course if everyone says they don't 
> mind a 7.10 in October then I withdraw my objection :-)
> 
> (as a data point, upgrading to 7.8 at work cost me three weeks,
> but we're probably a special case)
> 
> Cheers, Simon

Hi George:

There are continuous builds of GHC HEAD on several platforms and
architectures:
http://haskell.inf.elte.hu/builders/

There are still some bugs to work out there for sure (particularly
mine on SmartOS), but a lot of progress has been made.

The most critical gap is the lack of Windows and OS X builders since
they are Tier 1 platforms for GHC.

If you have Windows or OS X machines available please consider
offering a builder:
https://ghc.haskell.org/trac/ghc/wiki/Builder

Best,
Alain
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