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Diffstat (limited to 'lib/Target/X86/X86TargetObjectFile.cpp')
-rw-r--r--lib/Target/X86/X86TargetObjectFile.cpp42
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());
}