1 //===-- llvm/Target/ARMTargetObjectFile.cpp - ARM Object Info Impl --------===// 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 "ARMTargetObjectFile.h" 11 #include "ARMSubtarget.h" 12 #include "llvm/ADT/StringExtras.h" 13 #include "llvm/MC/MCContext.h" 14 #include "llvm/MC/MCExpr.h" 15 #include "llvm/MC/MCSectionELF.h" 16 #include "llvm/Support/Dwarf.h" 17 #include "llvm/Support/ELF.h" 18 #include "llvm/Target/Mangler.h" 19 #include "llvm/Target/TargetMachine.h" 20 using namespace llvm; 21 using namespace dwarf; 22 23 //===----------------------------------------------------------------------===// 24 // ELF Target 25 //===----------------------------------------------------------------------===// 26 Initialize(MCContext & Ctx,const TargetMachine & TM)27 void ARMElfTargetObjectFile::Initialize(MCContext &Ctx, 28 const TargetMachine &TM) { 29 bool isAAPCS_ABI = TM.getSubtarget<ARMSubtarget>().isAAPCS_ABI(); 30 TargetLoweringObjectFileELF::Initialize(Ctx, TM); 31 InitializeELF(isAAPCS_ABI); 32 33 if (isAAPCS_ABI) { 34 LSDASection = NULL; 35 } 36 37 AttributesSection = 38 getContext().getELFSection(".ARM.attributes", 39 ELF::SHT_ARM_ATTRIBUTES, 40 0, 41 SectionKind::getMetadata()); 42 } 43 44 const MCExpr *ARMElfTargetObjectFile:: getTTypeGlobalReference(const GlobalValue * GV,Mangler * Mang,MachineModuleInfo * MMI,unsigned Encoding,MCStreamer & Streamer) const45 getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang, 46 MachineModuleInfo *MMI, unsigned Encoding, 47 MCStreamer &Streamer) const { 48 assert(Encoding == DW_EH_PE_absptr && "Can handle absptr encoding only"); 49 50 return MCSymbolRefExpr::Create(Mang->getSymbol(GV), 51 MCSymbolRefExpr::VK_ARM_TARGET2, 52 getContext()); 53 } 54