//===------- SparcTargetObjectFile.cpp - Sparc Object Info Impl -----------===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

#include "SparcTargetObjectFile.h"

#include "MCTargetDesc/SparcMCExpr.h"

#include "llvm/BinaryFormat/Dwarf.h"

#include "llvm/CodeGen/MachineModuleInfoImpls.h"

#include "llvm/CodeGen/TargetLowering.h"

#include "llvm/Target/TargetMachine.h"

using namespace llvm;

void SparcELFTargetObjectFile::Initialize(MCContext &Ctx,

                                          const TargetMachine &TM) {

  TargetLoweringObjectFileELF::Initialize(Ctx, TM);

}

const MCExpr *SparcELFTargetObjectFile::getTTypeGlobalReference(

    const GlobalValue *GV, unsigned Encoding, const TargetMachine &TM,

    MachineModuleInfo *MMI, MCStreamer &Streamer) const {

  if (Encoding & dwarf::DW_EH_PE_pcrel) {

    MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();

    MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, ".DW.stub", TM);

    // Add information about the stub reference to ELFMMI so that the stub

    // gets emitted by the asmprinter.

    MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);

    if (!StubSym.getPointer()) {

      MCSymbol *Sym = TM.getSymbol(GV);

      StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());

    }

    MCContext &Ctx = getContext();

    return SparcMCExpr::create(SparcMCExpr::VK_Sparc_R_DISP32,

                               MCSymbolRefExpr::create(SSym, Ctx), Ctx);

  }

  return TargetLoweringObjectFileELF::getTTypeGlobalReference(GV, Encoding, TM,

                                                              MMI, Streamer);

}