1 //===-- X86TargetObjectFile.cpp - X86 Object Info -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "X86TargetObjectFile.h"
11 #include "X86TargetMachine.h"
12 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
13 #include "llvm/MC/MCContext.h"
14 #include "llvm/MC/MCExpr.h"
15 #include "llvm/MC/MCSectionMachO.h"
16 #include "llvm/Target/Mangler.h"
17 #include "llvm/Support/Dwarf.h"
19 using namespace dwarf;
21 const MCExpr *X8664_MachoTargetObjectFile::
22 getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
23 MachineModuleInfo *MMI, unsigned Encoding,
24 MCStreamer &Streamer) const {
26 // On Darwin/X86-64, we can reference dwarf symbols with foo@GOTPCREL+4, which
27 // is an indirect pc-relative reference.
28 if (Encoding & (DW_EH_PE_indirect | DW_EH_PE_pcrel)) {
29 const MCSymbol *Sym = Mang->getSymbol(GV);
31 MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext());
32 const MCExpr *Four = MCConstantExpr::Create(4, getContext());
33 return MCBinaryExpr::CreateAdd(Res, Four, getContext());
36 return TargetLoweringObjectFileMachO::
37 getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
40 MCSymbol *X8664_MachoTargetObjectFile::
41 getCFIPersonalitySymbol(const GlobalValue *GV, Mangler *Mang,
42 MachineModuleInfo *MMI) const {
43 return Mang->getSymbol(GV);