diff options
Diffstat (limited to 'lib/Target/X86/X86TargetObjectFile.cpp')
-rw-r--r-- | lib/Target/X86/X86TargetObjectFile.cpp | 42 |
1 files changed, 19 insertions, 23 deletions
diff --git a/lib/Target/X86/X86TargetObjectFile.cpp b/lib/Target/X86/X86TargetObjectFile.cpp index 1d1c32e..d65d3b0 100644 --- a/lib/Target/X86/X86TargetObjectFile.cpp +++ b/lib/Target/X86/X86TargetObjectFile.cpp @@ -15,17 +15,13 @@ #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCSectionCOFF.h" #include "llvm/MC/MCSectionELF.h" +#include "llvm/MC/MCValue.h" #include "llvm/Support/Dwarf.h" #include "llvm/Target/TargetLowering.h" using namespace llvm; using namespace dwarf; -X86_64MachoTargetObjectFile::X86_64MachoTargetObjectFile() - : TargetLoweringObjectFileMachO() { - SupportIndirectSymViaGOTPCRel = true; -} - const MCExpr *X86_64MachoTargetObjectFile::getTTypeGlobalReference( const GlobalValue *GV, unsigned Encoding, Mangler &Mang, const TargetMachine &TM, MachineModuleInfo *MMI, @@ -52,28 +48,30 @@ MCSymbol *X86_64MachoTargetObjectFile::getCFIPersonalitySymbol( } const MCExpr *X86_64MachoTargetObjectFile::getIndirectSymViaGOTPCRel( - const MCSymbol *Sym, int64_t Offset) const { + const MCSymbol *Sym, const MCValue &MV, int64_t Offset, + MachineModuleInfo *MMI, MCStreamer &Streamer) const { // On Darwin/X86-64, we need to use foo@GOTPCREL+4 to access the got entry // from a data section. In case there's an additional offset, then use // foo@GOTPCREL+4+<offset>. + unsigned FinalOff = Offset+MV.getConstant()+4; const MCExpr *Res = MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext()); - const MCExpr *Off = MCConstantExpr::Create(Offset+4, getContext()); + const MCExpr *Off = MCConstantExpr::Create(FinalOff, getContext()); return MCBinaryExpr::CreateAdd(Res, Off, getContext()); } +const MCExpr *X86ELFTargetObjectFile::getDebugThreadLocalSymbol( + const MCSymbol *Sym) const { + return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_DTPOFF, getContext()); +} + void -X86LinuxTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM) { +X86LinuxNaClTargetObjectFile::Initialize(MCContext &Ctx, + const TargetMachine &TM) { TargetLoweringObjectFileELF::Initialize(Ctx, TM); InitializeELF(TM.Options.UseInitArray); } -const MCExpr * -X86LinuxTargetObjectFile::getDebugThreadLocalSymbol( - const MCSymbol *Sym) const { - return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_DTPOFF, getContext()); -} - const MCExpr *X86WindowsTargetObjectFile::getExecutableRelativeSymbol( const ConstantExpr *CE, Mangler &Mang, const TargetMachine &TM) const { // We are looking for the difference of two symbols, need a subtraction @@ -97,14 +95,12 @@ const MCExpr *X86WindowsTargetObjectFile::getExecutableRelativeSymbol( SubRHS->getPointerAddressSpace() != 0) return nullptr; - // Both ptrtoint instructions must wrap global variables: + // Both ptrtoint instructions must wrap global objects: // - Only global variables are eligible for image relative relocations. - // - The subtrahend refers to the special symbol __ImageBase, a global. - const GlobalVariable *GVLHS = - dyn_cast<GlobalVariable>(SubLHS->getPointerOperand()); - const GlobalVariable *GVRHS = - dyn_cast<GlobalVariable>(SubRHS->getPointerOperand()); - if (!GVLHS || !GVRHS) + // - The subtrahend refers to the special symbol __ImageBase, a GlobalVariable. + const auto *GOLHS = dyn_cast<GlobalObject>(SubLHS->getPointerOperand()); + const auto *GVRHS = dyn_cast<GlobalVariable>(SubRHS->getPointerOperand()); + if (!GOLHS || !GVRHS) return nullptr; // We expect __ImageBase to be a global variable without a section, externally @@ -117,10 +113,10 @@ const MCExpr *X86WindowsTargetObjectFile::getExecutableRelativeSymbol( return nullptr; // An image-relative, thread-local, symbol makes no sense. - if (GVLHS->isThreadLocal()) + if (GOLHS->isThreadLocal()) return nullptr; - return MCSymbolRefExpr::Create(TM.getSymbol(GVLHS, Mang), + return MCSymbolRefExpr::Create(TM.getSymbol(GOLHS, Mang), MCSymbolRefExpr::VK_COFF_IMGREL32, getContext()); } |