llvm/lib/Target/Sparc/SparcTargetObjectFile.cpp

   1 //===------- SparcTargetObjectFile.cpp - Sparc Object Info Impl -----------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "SparcTargetObjectFile.h"
  10 #include "MCTargetDesc/SparcMCExpr.h"
  11 #include "llvm/BinaryFormat/Dwarf.h"
  12 #include "llvm/CodeGen/MachineModuleInfoImpls.h"
  13 #include "llvm/CodeGen/TargetLowering.h"
  14 #include "llvm/Target/TargetMachine.h"
  15
  16 using namespace llvm;
  17
  18 void SparcELFTargetObjectFile::Initialize(MCContext &Ctx,
  19                                           const TargetMachine &TM) {
  20   TargetLoweringObjectFileELF::Initialize(Ctx, TM);
  21 }
  22
  23 const MCExpr *SparcELFTargetObjectFile::getTTypeGlobalReference(
  24     const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM,
  25     MachineModuleInfo *MMI, MCStreamer &Streamer) const {
  26
  27   if (Encoding & dwarf::DW_EH_PE_pcrel) {
  28     MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();
  29
  30     MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, ".DW.stub", TM);
  31
  32     // Add information about the stub reference to ELFMMI so that the stub
  33     // gets emitted by the asmprinter.
  34     MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);
  35     if (!StubSym.getPointer()) {
  36       MCSymbol *Sym = TM.getSymbol(GV);
  37       StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
  38     }
  39
  40     MCContext &Ctx = getContext();
  41     return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,
  42                                MCSymbolRefExpr::create(SSym, Ctx), Ctx);
  43   }
  44
  45   return TargetLoweringObjectFileELF::getTTypeGlobalReference(GV, Encoding, TM,
  46                                                               MMI, Streamer);
  47 }