forked from OSchip/llvm-project
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
//===-- 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 "X86TargetMachine.h"
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
|
|
#include "llvm/MC/MCContext.h"
|
|
#include "llvm/MC/MCExpr.h"
|
|
#include "llvm/MC/MCSectionELF.h"
|
|
#include "llvm/MC/MCSectionMachO.h"
|
|
#include "llvm/Target/Mangler.h"
|
|
#include "llvm/Support/Dwarf.h"
|
|
#include "llvm/Support/ELF.h"
|
|
using namespace llvm;
|
|
using namespace dwarf;
|
|
|
|
const MCExpr *X86_64MachoTargetObjectFile::
|
|
getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
|
|
MachineModuleInfo *MMI, unsigned Encoding,
|
|
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 | DW_EH_PE_pcrel)) {
|
|
const MCSymbol *Sym = Mang->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::
|
|
getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
|
|
}
|
|
|
|
MCSymbol *X86_64MachoTargetObjectFile::
|
|
getCFIPersonalitySymbol(const GlobalValue *GV, Mangler *Mang,
|
|
MachineModuleInfo *MMI) const {
|
|
return Mang->getSymbol(GV);
|
|
}
|
|
|
|
void
|
|
X86LinuxTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM) {
|
|
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
|
|
InitializeELF(TM.Options.UseInitArray);
|
|
}
|