1 //===-- X86TargetObjectFile.cpp - X86 Object Info -------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "X86TargetObjectFile.h" 11 #include "llvm/MC/MCContext.h" 12 #include "llvm/MC/MCExpr.h" 13 #include "llvm/MC/MCSectionELF.h" 14 #include "llvm/Support/Dwarf.h" 15 #include "llvm/Target/Mangler.h" 16 17 using namespace llvm; 18 using namespace dwarf; 19 20 const MCExpr *X86_64MachoTargetObjectFile:: 21 getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang, 22 MachineModuleInfo *MMI, unsigned Encoding, 23 MCStreamer &Streamer) const { 24 25 // On Darwin/X86-64, we can reference dwarf symbols with foo@GOTPCREL+4, which 26 // is an indirect pc-relative reference. 27 if (Encoding & (DW_EH_PE_indirect | DW_EH_PE_pcrel)) { 28 const MCSymbol *Sym = Mang->getSymbol(GV); 29 const MCExpr *Res = 30 MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOTPCREL, getContext()); 31 const MCExpr *Four = MCConstantExpr::Create(4, getContext()); 32 return MCBinaryExpr::CreateAdd(Res, Four, getContext()); 33 } 34 35 return TargetLoweringObjectFileMachO:: 36 getTTypeGlobalReference(GV, Mang, MMI, Encoding, Streamer); 37 } 38 39 MCSymbol *X86_64MachoTargetObjectFile:: 40 getCFIPersonalitySymbol(const GlobalValue *GV, Mangler *Mang, 41 MachineModuleInfo *MMI) const { 42 return Mang->getSymbol(GV); 43 } 44 45 void 46 X86LinuxTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM) { 47 TargetLoweringObjectFileELF::Initialize(Ctx, TM); 48 InitializeELF(TM.Options.UseInitArray); 49 } 50 51 const MCExpr * 52 X86LinuxTargetObjectFile::getDebugThreadLocalSymbol( 53 const MCSymbol *Sym) const { 54 return MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_DTPOFF, getContext()); 55 } 56
