MCObjectWriter.cpp

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//===- lib/MC/MCObjectWriter.cpp - MCObjectWriter implementation ----------===//
//
// 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 "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCValue.h"
namespace llvm {
class MCSection;
}
 
using namespace llvm;
 
MCObjectWriter::~MCObjectWriter() = default;
 
MCContext &MCObjectWriter::getContext() const { return Asm->getContext(); }
 
void MCObjectWriter::reset() {
  FileNames.clear();
  AddrsigSyms.clear();
  EmitAddrsigSection = false;
  SubsectionsViaSymbols = false;
  CGProfile.clear();
}
 
void MCObjectWriter::recordRelocation(const MCFragment &F, const MCFixup &Fixup,
                                      MCValue Target, uint64_t &FixedValue) {}
 
bool MCObjectWriter::isSymbolRefDifferenceFullyResolved(const MCSymbol &SA,
                                                        const MCSymbol &SB,
                                                        bool InSet) const {
  assert(!SA.isUndefined() && !SB.isUndefined());
  return isSymbolRefDifferenceFullyResolvedImpl(SA, *SB.getFragment(), InSet,
                                                /*IsPCRel=*/false);
}
 
bool MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(
    const MCSymbol &SymA, const MCFragment &FB, bool InSet,
    bool IsPCRel) const {
  const MCSection &SecA = SymA.getSection();
  const MCSection &SecB = *FB.getParent();
  // On ELF and COFF  A - B is absolute if A and B are in the same section.
  return &SecA == &SecB;
}
 
void MCObjectWriter::addFileName(StringRef FileName) {
  FileNames.emplace_back(std::string(FileName), Asm->Symbols.size());
}
 
MCContext &MCObjectTargetWriter::getContext() const {
  return Asm->getContext();
}
 
void MCObjectTargetWriter::reportError(SMLoc L, const Twine &Msg) const {
  return Asm->getContext().reportError(L, Msg);
}