[ ghc-Bugs-604466 ] x86 NCG bug with stdcall f.i. "wrapper"

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Bugs item #604466, was opened at 2002-09-04 10:08
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Category: Compiler (FFI)
Group: 5.04
Status: Open
Resolution: None
Priority: 5
Submitted By: Simon Marlow (simonmar)
Assigned to: Simon Marlow (simonmar)
Summary: x86 NCG bug with stdcall f.i. "wrapper"

Initial Comment:
Original message from Sven Panne:

HOpenGL did it once again... :-} The NCG for x86
doesn't honour the calling convention for "wrappers":

-- example module ------------------------------------
module CB where

import Foreign.C.Types ( CInt )
import Foreign.Ptr ( FunPtr )

type Callback = CInt -> IO ()

foreign import ccall   "wrapper" makeCallback1 ::
   Callback -> IO (FunPtr Callback)

foreign import stdcall "wrapper" makeCallback2 ::
   Callback -> IO (FunPtr Callback)

-- shell transcript ----------------------------------
$ rm -f *.o ; ghc -c -fffi CB.hs ; nm *.o|grep _CB_d
         U _CB_dS1
         U _CB_dS2    <= !!!!!!!!!! @8 is missing
00000008 T _CB_dS1
00000070 T _CB_dS2 at 8

$ rm -f *.o ; ghc -c -fffi CB.hs -O ; nm *.o|grep
_CB_d
         U _CB_dUu at 8
         U _CB_dUv
00000070 T _CB_dUu at 8
------------------------------------------------------

I'd be grateful if this would be be fixed for the next
patchlevel release.

Cheers,
   S.



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