contrib/llvm/lib/Target/Sparc/SparcTargetObjectFile.cpp

   1 //===------- SparcTargetObjectFile.cpp - Sparc 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 "SparcTargetObjectFile.h"
  11 #include "MCTargetDesc/SparcMCExpr.h"
  12 #include "llvm/BinaryFormat/Dwarf.h"
  13 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
  14 #include "llvm/Target/TargetLowering.h"
  15
  16 using namespace llvm;
  17
  18 void SparcELFTargetObjectFile::Initialize(MCContext &Ctx,
  19                                           const TargetMachine &TM) {
  20   TargetLoweringObjectFileELF::Initialize(Ctx, TM);
  21   InitializeELF(TM.Options.UseInitArray);
  22 }
  23
  24 const MCExpr *SparcELFTargetObjectFile::getTTypeGlobalReference(
  25     const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM,
  26     MachineModuleInfo *MMI, MCStreamer &Streamer) const {
  27
  28   if (Encoding & dwarf::DW_EH_PE_pcrel) {
  29     MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();
  30
  31     MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, ".DW.stub", TM);
  32
  33     // Add information about the stub reference to ELFMMI so that the stub
  34     // gets emitted by the asmprinter.
  35     MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);
  36     if (!StubSym.getPointer()) {
  37       MCSymbol *Sym = TM.getSymbol(GV);
  38       StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
  39     }
  40
  41     MCContext &Ctx = getContext();
  42     return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,
  43                                MCSymbolRefExpr::create(SSym, Ctx), Ctx);
  44   }
  45
  46   return TargetLoweringObjectFileELF::getTTypeGlobalReference(GV, Encoding, TM,
  47                                                               MMI, Streamer);
  48 }