simonmar at microsoft.com
Mon Jun 6 04:55:25 EDT 2005
On 06 June 2005 09:04, Gary Morris wrote:
> --- begin: AccuTime.hs
> module AccuTime where
> import Foreign.C.Types
> foreign import stdcall unsafe "accutime.h accuticks" c_accuticks ::
> IO CULLong
> accuticks :: IO Integer
> accuticks = do ull <- c_accuticks
> return (fromIntegral ull)
> --- end
> And then, after passing the correct -L and -l flags to ghci, attempted
> to load that module. Unfortunately, I got:
> ___ ___ _
> / _ \ /\ /\/ __(_)
> / /_\// /_/ / / | | GHC Interactive, version 6.4, for Haskell
> 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/
> \____/\/ /_/\____/|_| Type :? for help.
> Loading package base-1.0 ... linking ... done.
> Loading object (dynamic) AccuTime ... done
> final link ... done
> Prelude> :l AccuTime.hs
> Compiling AccuTime ( AccuTime.hs, interpreted )
> ghc.exe: panic! (the `impossible' happened, GHC version 6.4):
> ByteCodeFFI.mkMarshalCode_wrk(x86) L_
> Please report it as a compiler bug to
> glasgow-haskell-bugs at haskell.org,
> or http://sourceforge.net/projects/ghc/.
Yes, unfortunately it seems that long-long results from foreign
functions aren't supported by GHCi (on x86) right now. Workaround is to
compile the module instead of interpreting it.
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