any successfull ghc registerised builds on arm?

[Karel Gardas]

On 01/24/13 04:50 PM, Stephen Paul Weber wrote:
> Somebody claiming to be Nathan Hüsken wrote:
>> On 01/24/2013 04:28 PM, Stephen Paul Weber wrote:
>>>>> Do you think it is specifically the 3.2 that made it work?
>>>> Yes. With llvm version 3.1 I was only able to get an unregisterised
>>>> build to work.
>>> <http://hackage.haskell.org/trac/ghc/attachment/ticket/7621/unregistered-arm-llvm-hack.patch>
>>>
>>> ?
>>
>> Not exactly, see the patch here:
>> http://www.haskell.org/pipermail/ghc-devs/2013-January/000118.html
>> and the changes to compiler/llvmGen/LlvmCodeGen/Ppr.hs
>
> Oh, man, the fact that I don't have that setting for QNX is probably not
> doing me any favours...

IIRC it's more about optimization, i.e. proper data type alignment.

> How the heck am I supposed to figure out what that string should be? :(

Described here: http://llvm.org/docs/LangRef.html#data-layout -- for 
LLVM 3.3. General rule, I would start with what Linux requires and check 
from that.

> That said... how did you get an unregisterised build to work with an
> LLVM backend? Everything I've seen in the code implied that the moment
> you are unregisteried, it uses via-C... Which is what my above patch is
> primarily about.

IMHO Nathan is using registerised build. Nathan correct me please if I'm 
wrong as I'd like to also give your Android work a try in the future 
(being Android user myself...)

Karel