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//===-- X86TargetObjectFile.cpp - X86 Object Info -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "X86TargetObjectFile.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Operator.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCValue.h"
using namespace llvm;
using namespace dwarf;
const MCExpr *X86_64MachoTargetObjectFile::getTTypeGlobalReference(
const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM,
MachineModuleInfo *MMI, MCStreamer &Streamer) const {
// On Darwin/X86-64, we can reference dwarf symbols with foo@GOTPCREL+4, which
// is an indirect pc-relative reference.
if ((Encoding & DW_EH_PE_indirect) && (Encoding & DW_EH_PE_pcrel)) {
const MCSymbol *Sym = TM.getSymbol(GV);
const MCExpr *Res =
MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext());
const MCExpr *Four = MCConstantExpr::create(4, getContext());
return MCBinaryExpr::createAdd(Res, Four, getContext());
}
return TargetLoweringObjectFileMachO::getTTypeGlobalReference(
GV, Encoding, TM, MMI, Streamer);
}
MCSymbol *X86_64MachoTargetObjectFile::getCFIPersonalitySymbol(
const GlobalValue *GV, const TargetMachine &TM,
MachineModuleInfo *MMI) const {
return TM.getSymbol(GV);
}
const MCExpr *X86_64MachoTargetObjectFile::getIndirectSymViaGOTPCRel(
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(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
X86FreeBSDTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
InitializeELF(TM.Options.UseInitArray);
}
void
X86FuchsiaTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
InitializeELF(TM.Options.UseInitArray);
}
void
X86LinuxNaClTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
InitializeELF(TM.Options.UseInitArray);
}
void X86SolarisTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
InitializeELF(TM.Options.UseInitArray);
}
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