-----------------------------------------------------------------------------
{
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module CmmParse ( parseCmmFile ) where
import CgMonad
-- classifies these labels as dynamic, hence the code generator emits the
-- PIC code for them.
newImport :: FastString -> ExtFCode ()
-newImport name =
- addVarDecl name (CmmLit (CmmLabel (mkForeignLabel name Nothing True)))
+newImport name
+ = addVarDecl name (CmmLit (CmmLabel (mkForeignLabel name Nothing True)))
newLabel :: FastString -> ExtFCode BlockId
newLabel name = do
foreignCall conv_string results_code expr_code args_code vols safety ret
= do convention <- case conv_string of
"C" -> return CCallConv
+ "stdcall" -> return StdCallConv
"C--" -> return CmmCallConv
_ -> fail ("unknown calling convention: " ++ conv_string)
return $ do
case convention of
-- Temporary hack so at least some functions are CmmSafe
CmmCallConv -> code (stmtC (CmmCall (CmmCallee expr convention) results args safety ret))
- _ -> case safety of
+ _ ->
+ let expr' = adjCallTarget convention expr args in
+ case safety of
CmmUnsafe ->
code (emitForeignCall' PlayRisky results
- (CmmCallee expr convention) args vols NoC_SRT ret)
+ (CmmCallee expr' convention) args vols NoC_SRT ret)
CmmSafe srt ->
code (emitForeignCall' (PlaySafe unused) results
- (CmmCallee expr convention) args vols NoC_SRT ret) where
+ (CmmCallee expr' convention) args vols NoC_SRT ret) where
unused = panic "not used by emitForeignCall'"
+adjCallTarget :: CCallConv -> CmmExpr -> [(CmmExpr,MachHint)] -> CmmExpr
+#ifdef mingw32_TARGET_OS
+-- On Windows, we have to add the '@N' suffix to the label when making
+-- a call with the stdcall calling convention.
+adjCallTarget StdCallConv (CmmLit (CmmLabel lbl)) args
+ = CmmLit (CmmLabel (addLabelSize lbl (sum (map size args))))
+ where size (e,_) = max wORD_SIZE (machRepByteWidth (cmmExprRep e))
+ -- c.f. CgForeignCall.emitForeignCall
+#endif
+adjCallTarget _ expr _
+ = expr
+
primCall
:: [ExtFCode (CmmFormal,MachHint)]
-> FastString