diff options
Diffstat (limited to 'compiler/GHC/CmmToAsm/PIC.hs')
| -rw-r--r-- | compiler/GHC/CmmToAsm/PIC.hs | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/compiler/GHC/CmmToAsm/PIC.hs b/compiler/GHC/CmmToAsm/PIC.hs index 10ddaa1f5f..8a728102e5 100644 --- a/compiler/GHC/CmmToAsm/PIC.hs +++ b/compiler/GHC/CmmToAsm/PIC.hs @@ -209,6 +209,13 @@ absoluteLabel lbl -- pointers, code stubs and GOT offsets look like is located in the -- module CLabel. +-- | Helper to check whether the data resides in a DLL or not, see @labelDynamic@ +ncgLabelDynamic :: NCGConfig -> CLabel -> Bool +ncgLabelDynamic config = labelDynamic (ncgThisModule config) + (ncgPlatform config) + (ncgExternalDynamicRefs config) + + -- We have to decide which labels need to be accessed -- indirectly or via a piece of stub code. data LabelAccessStyle @@ -247,7 +254,7 @@ howToAccessLabel config _arch OSMinGW32 _kind lbl -- If the target symbol is in another PE we need to access it via the -- appropriate __imp_SYMBOL pointer. - | labelDynamic config lbl + | ncgLabelDynamic config lbl = AccessViaSymbolPtr -- Target symbol is in the same PE as the caller, so just access it directly. @@ -262,7 +269,7 @@ howToAccessLabel config ArchAArch64 _os _kind lbl | not (ncgExternalDynamicRefs config) = AccessDirectly - | labelDynamic config lbl + | ncgLabelDynamic config lbl = AccessViaSymbolPtr | otherwise @@ -279,7 +286,7 @@ howToAccessLabel config ArchAArch64 _os _kind lbl -- howToAccessLabel config arch OSDarwin DataReference lbl -- data access to a dynamic library goes via a symbol pointer - | labelDynamic config lbl + | ncgLabelDynamic config lbl = AccessViaSymbolPtr -- when generating PIC code, all cross-module data references must @@ -300,7 +307,7 @@ howToAccessLabel config arch OSDarwin JumpReference lbl -- stack alignment is only right for regular calls. -- Therefore, we have to go via a symbol pointer: | arch == ArchX86 || arch == ArchX86_64 || arch == ArchAArch64 - , labelDynamic config lbl + , ncgLabelDynamic config lbl = AccessViaSymbolPtr @@ -310,7 +317,7 @@ howToAccessLabel config arch OSDarwin _kind lbl -- them automatically, neither on Aarch64 (arm64). | arch /= ArchX86_64 , arch /= ArchAArch64 - , labelDynamic config lbl + , ncgLabelDynamic config lbl = AccessViaStub | otherwise @@ -362,7 +369,7 @@ howToAccessLabel config arch os DataReference lbl | osElfTarget os = case () of -- A dynamic label needs to be accessed via a symbol pointer. - _ | labelDynamic config lbl + _ | ncgLabelDynamic config lbl -> AccessViaSymbolPtr -- For PowerPC32 -fPIC, we have to access even static data @@ -390,18 +397,19 @@ howToAccessLabel config arch os DataReference lbl howToAccessLabel config arch os CallReference lbl | osElfTarget os - , labelDynamic config lbl && not (ncgPIC config) + , ncgLabelDynamic config lbl + , not (ncgPIC config) = AccessDirectly | osElfTarget os , arch /= ArchX86 - , labelDynamic config lbl + , ncgLabelDynamic config lbl , ncgPIC config = AccessViaStub howToAccessLabel config _arch os _kind lbl | osElfTarget os - = if labelDynamic config lbl + = if ncgLabelDynamic config lbl then AccessViaSymbolPtr else AccessDirectly |