diff options
Diffstat (limited to 'compiler/GHC/CmmToAsm/PIC.hs')
| -rw-r--r-- | compiler/GHC/CmmToAsm/PIC.hs | 82 |
1 files changed, 43 insertions, 39 deletions
diff --git a/compiler/GHC/CmmToAsm/PIC.hs b/compiler/GHC/CmmToAsm/PIC.hs index d4d8b55e7e..a9668133fc 100644 --- a/compiler/GHC/CmmToAsm/PIC.hs +++ b/compiler/GHC/CmmToAsm/PIC.hs @@ -120,10 +120,12 @@ cmmMakeDynamicReference dflags referenceKind lbl | otherwise = do this_mod <- getThisModule + let config = initConfig dflags + platform = ncgPlatform config case howToAccessLabel dflags - (platformArch $ targetPlatform dflags) - (platformOS $ targetPlatform dflags) + (platformArch platform) + (platformOS platform) this_mod referenceKind lbl of @@ -135,11 +137,11 @@ cmmMakeDynamicReference dflags referenceKind lbl AccessViaSymbolPtr -> do let symbolPtr = mkDynamicLinkerLabel SymbolPtr lbl addImport symbolPtr - return $ CmmLoad (cmmMakePicReference dflags symbolPtr) (bWord dflags) + return $ CmmLoad (cmmMakePicReference config symbolPtr) (bWord platform) AccessDirectly -> case referenceKind of -- for data, we might have to make some calculations: - DataReference -> return $ cmmMakePicReference dflags lbl + DataReference -> return $ cmmMakePicReference config lbl -- all currently supported processors support -- PC-relative branch and call instructions, -- so just jump there if it's a call or a jump @@ -153,42 +155,44 @@ cmmMakeDynamicReference dflags referenceKind lbl -- offset to our base register; this offset is calculated by -- the function picRelative in the platform-dependent part below. -cmmMakePicReference :: DynFlags -> CLabel -> CmmExpr -cmmMakePicReference dflags lbl - - -- Windows doesn't need PIC, - -- everything gets relocated at runtime - | OSMinGW32 <- platformOS $ targetPlatform dflags - = CmmLit $ CmmLabel lbl - - | OSAIX <- platformOS $ targetPlatform dflags - = CmmMachOp (MO_Add W32) - [ CmmReg (CmmGlobal PicBaseReg) - , CmmLit $ picRelative (wordWidth dflags) - (platformArch $ targetPlatform dflags) - (platformOS $ targetPlatform dflags) - lbl ] - - -- both ABI versions default to medium code model - | ArchPPC_64 _ <- platformArch $ targetPlatform dflags - = CmmMachOp (MO_Add W32) -- code model medium - [ CmmReg (CmmGlobal PicBaseReg) - , CmmLit $ picRelative (wordWidth dflags) - (platformArch $ targetPlatform dflags) - (platformOS $ targetPlatform dflags) - lbl ] - - | (positionIndependent dflags || gopt Opt_ExternalDynamicRefs dflags) - && absoluteLabel lbl - = CmmMachOp (MO_Add (wordWidth dflags)) - [ CmmReg (CmmGlobal PicBaseReg) - , CmmLit $ picRelative (wordWidth dflags) - (platformArch $ targetPlatform dflags) - (platformOS $ targetPlatform dflags) - lbl ] +cmmMakePicReference :: NCGConfig -> CLabel -> CmmExpr +cmmMakePicReference config lbl + -- Windows doesn't need PIC, + -- everything gets relocated at runtime + | OSMinGW32 <- platformOS platform + = CmmLit $ CmmLabel lbl + + | OSAIX <- platformOS platform + = CmmMachOp (MO_Add W32) + [ CmmReg (CmmGlobal PicBaseReg) + , CmmLit $ picRelative (wordWidth platform) + (platformArch platform) + (platformOS platform) + lbl ] + + -- both ABI versions default to medium code model + | ArchPPC_64 _ <- platformArch platform + = CmmMachOp (MO_Add W32) -- code model medium + [ CmmReg (CmmGlobal PicBaseReg) + , CmmLit $ picRelative (wordWidth platform) + (platformArch platform) + (platformOS platform) + lbl ] + + | (ncgPIC config || ncgExternalDynamicRefs config) + && absoluteLabel lbl + = CmmMachOp (MO_Add (wordWidth platform)) + [ CmmReg (CmmGlobal PicBaseReg) + , CmmLit $ picRelative (wordWidth platform) + (platformArch platform) + (platformOS platform) + lbl ] + + | otherwise + = CmmLit $ CmmLabel lbl + where + platform = ncgPlatform config - | otherwise - = CmmLit $ CmmLabel lbl absoluteLabel :: CLabel -> Bool |