1 //===- lib/MC/MCObjectWriter.cpp - MCObjectWriter implementation ----------===//
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 "llvm/MC/MCObjectWriter.h"
10 #include "llvm/MC/MCAssembler.h"
11 #include "llvm/MC/MCContext.h"
12 #include "llvm/MC/MCExpr.h"
13 #include "llvm/MC/MCSymbol.h"
14 #include "llvm/MC/MCValue.h"
15 namespace llvm {
16 class MCSection;
17 }
18
19 using namespace llvm;
20
21 MCObjectWriter::~MCObjectWriter() = default;
22
getContext() const23 MCContext &MCObjectWriter::getContext() const { return Asm->getContext(); }
24
reset()25 void MCObjectWriter::reset() {
26 FileNames.clear();
27 AddrsigSyms.clear();
28 EmitAddrsigSection = false;
29 SubsectionsViaSymbols = false;
30 CGProfile.clear();
31 }
32
recordRelocation(const MCFragment & F,const MCFixup & Fixup,MCValue Target,uint64_t & FixedValue)33 void MCObjectWriter::recordRelocation(const MCFragment &F, const MCFixup &Fixup,
34 MCValue Target, uint64_t &FixedValue) {}
35
isSymbolRefDifferenceFullyResolved(const MCSymbol & SA,const MCSymbol & SB,bool InSet) const36 bool MCObjectWriter::isSymbolRefDifferenceFullyResolved(const MCSymbol &SA,
37 const MCSymbol &SB,
38 bool InSet) const {
39 assert(!SA.isUndefined() && !SB.isUndefined());
40 return isSymbolRefDifferenceFullyResolvedImpl(SA, *SB.getFragment(), InSet,
41 /*IsPCRel=*/false);
42 }
43
isSymbolRefDifferenceFullyResolvedImpl(const MCSymbol & SymA,const MCFragment & FB,bool InSet,bool IsPCRel) const44 bool MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(
45 const MCSymbol &SymA, const MCFragment &FB, bool InSet,
46 bool IsPCRel) const {
47 const MCSection &SecA = SymA.getSection();
48 const MCSection &SecB = *FB.getParent();
49 // On ELF and COFF A - B is absolute if A and B are in the same section.
50 return &SecA == &SecB;
51 }
52
addFileName(StringRef FileName)53 void MCObjectWriter::addFileName(StringRef FileName) {
54 FileNames.emplace_back(std::string(FileName), Asm->Symbols.size());
55 }
56
getContext() const57 MCContext &MCObjectTargetWriter::getContext() const {
58 return Asm->getContext();
59 }
60
reportError(SMLoc L,const Twine & Msg) const61 void MCObjectTargetWriter::reportError(SMLoc L, const Twine &Msg) const {
62 return Asm->getContext().reportError(L, Msg);
63 }
64