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📁 ..
📄 ConstantPools.cpp(3.72 KB)
📄 ELFObjectWriter.cpp(51.58 KB)
📄 MCAsmBackend.cpp(4.01 KB)
📄 MCAsmInfo.cpp(4.44 KB)
📄 MCAsmInfoCOFF.cpp(2.17 KB)
📄 MCAsmInfoDarwin.cpp(3.01 KB)
📄 MCAsmInfoELF.cpp(1.05 KB)
📄 MCAsmInfoWasm.cpp(853 B)
📄 MCAsmInfoXCOFF.cpp(1.63 KB)
📄 MCAsmMacro.cpp(1.12 KB)
📄 MCAsmStreamer.cpp(68.69 KB)
📄 MCAssembler.cpp(42.61 KB)
📄 MCCodeEmitter.cpp(515 B)
📄 MCCodeView.cpp(25.49 KB)
📄 MCContext.cpp(31.94 KB)
📁 MCDisassembler
📄 MCDwarf.cpp(71.58 KB)
📄 MCELFObjectTargetWriter.cpp(1.29 KB)
📄 MCELFStreamer.cpp(24.89 KB)
📄 MCExpr.cpp(34.06 KB)
📄 MCFragment.cpp(15.28 KB)
📄 MCInst.cpp(2.6 KB)
📄 MCInstPrinter.cpp(7.87 KB)
📄 MCInstrAnalysis.cpp(1.2 KB)
📄 MCInstrDesc.cpp(1.96 KB)
📄 MCInstrInfo.cpp(1.03 KB)
📄 MCLabel.cpp(772 B)
📄 MCLinkerOptimizationHint.cpp(2.03 KB)
📄 MCMachOStreamer.cpp(18.55 KB)
📄 MCMachObjectTargetWriter.cpp(780 B)
📄 MCNullStreamer.cpp(1.61 KB)
📄 MCObjectFileInfo.cpp(39.55 KB)
📄 MCObjectStreamer.cpp(28.26 KB)
📄 MCObjectWriter.cpp(1.82 KB)
📁 MCParser
📄 MCRegisterInfo.cpp(4.76 KB)
📄 MCSchedule.cpp(6.15 KB)
📄 MCSection.cpp(4.41 KB)
📄 MCSectionCOFF.cpp(3.52 KB)
📄 MCSectionELF.cpp(5.29 KB)
📄 MCSectionMachO.cpp(10.84 KB)
📄 MCSectionWasm.cpp(2.45 KB)
📄 MCSectionXCOFF.cpp(2.46 KB)
📄 MCStreamer.cpp(42.97 KB)
📄 MCSubtargetInfo.cpp(11.35 KB)
📄 MCSymbol.cpp(2.98 KB)
📄 MCSymbolELF.cpp(4.69 KB)
📄 MCSymbolXCOFF.cpp(1.73 KB)
📄 MCTargetOptions.cpp(990 B)
📄 MCTargetOptionsCommandFlags.cpp(4.42 KB)
📄 MCValue.cpp(1.42 KB)
📄 MCWasmObjectTargetWriter.cpp(727 B)
📄 MCWasmStreamer.cpp(7.59 KB)
📄 MCWin64EH.cpp(22.87 KB)
📄 MCWinCOFFStreamer.cpp(11.94 KB)
📄 MCWinEH.cpp(711 B)
📄 MCXCOFFObjectTargetWriter.cpp(596 B)
📄 MCXCOFFStreamer.cpp(4.87 KB)
📄 MachObjectWriter.cpp(37.79 KB)
📄 StringTableBuilder.cpp(5.26 KB)
📄 SubtargetFeature.cpp(2.6 KB)
📄 WasmObjectWriter.cpp(60.42 KB)
📄 WinCOFFObjectWriter.cpp(39.32 KB)
📄 XCOFFObjectWriter.cpp(31.62 KB)

Editing: MCAsmInfo.cpp

//===- MCAsmInfo.cpp - Asm Info -------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file defines target asm properties related what form asm statements
// should take.
//
//===----------------------------------------------------------------------===//

#include "llvm/MC/MCAsmInfo.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/Support/CommandLine.h"

using namespace llvm;

enum DefaultOnOff { Default, Enable, Disable };
static cl::opt<DefaultOnOff> DwarfExtendedLoc(
    "dwarf-extended-loc", cl::Hidden,
    cl::desc("Disable emission of the extended flags in .loc directives."),
    cl::values(clEnumVal(Default, "Default for platform"),
               clEnumVal(Enable, "Enabled"), clEnumVal(Disable, "Disabled")),
    cl::init(Default));

MCAsmInfo::MCAsmInfo() {
  SeparatorString = ";";
  CommentString = "#";
  LabelSuffix = ":";
  PrivateGlobalPrefix = "L";
  PrivateLabelPrefix = PrivateGlobalPrefix;
  LinkerPrivateGlobalPrefix = "";
  InlineAsmStart = "APP";
  InlineAsmEnd = "NO_APP";
  Code16Directive = ".code16";
  Code32Directive = ".code32";
  Code64Directive = ".code64";
  ZeroDirective = "\t.zero\t";
  AsciiDirective = "\t.ascii\t";
  AscizDirective = "\t.asciz\t";
  Data8bitsDirective = "\t.byte\t";
  Data16bitsDirective = "\t.short\t";
  Data32bitsDirective = "\t.long\t";
  Data64bitsDirective = "\t.quad\t";
  GlobalDirective = "\t.globl\t";
  WeakDirective = "\t.weak\t";
  if (DwarfExtendedLoc != Default)
    SupportsExtendedDwarfLocDirective = DwarfExtendedLoc == Enable;

// FIXME: Clang's logic should be synced with the logic used to initialize
  //        this member and the two implementations should be merged.
  // For reference:
  // - Solaris always enables the integrated assembler by default
  //   - SparcELFMCAsmInfo and X86ELFMCAsmInfo are handling this case
  // - Windows always enables the integrated assembler by default
  //   - MCAsmInfoCOFF is handling this case, should it be MCAsmInfoMicrosoft?
  // - MachO targets always enables the integrated assembler by default
  //   - MCAsmInfoDarwin is handling this case
  // - Generic_GCC toolchains enable the integrated assembler on a per
  //   architecture basis.
  //   - The target subclasses for AArch64, ARM, and X86 handle these cases
  UseIntegratedAssembler = true;
  PreserveAsmComments = true;
}

MCAsmInfo::~MCAsmInfo() = default;

void MCAsmInfo::addInitialFrameState(const MCCFIInstruction &Inst) {
  InitialFrameState.push_back(Inst);
}

bool MCAsmInfo::isSectionAtomizableBySymbols(const MCSection &Section) const {
  return false;
}

const MCExpr *
MCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym,
                                       unsigned Encoding,
                                       MCStreamer &Streamer) const {
  return getExprForFDESymbol(Sym, Encoding, Streamer);
}

const MCExpr *
MCAsmInfo::getExprForFDESymbol(const MCSymbol *Sym,
                               unsigned Encoding,
                               MCStreamer &Streamer) const {
  if (!(Encoding & dwarf::DW_EH_PE_pcrel))
    return MCSymbolRefExpr::create(Sym, Streamer.getContext());

MCContext &Context = Streamer.getContext();
  const MCExpr *Res = MCSymbolRefExpr::create(Sym, Context);
  MCSymbol *PCSym = Context.createTempSymbol();
  Streamer.emitLabel(PCSym);
  const MCExpr *PC = MCSymbolRefExpr::create(PCSym, Context);
  return MCBinaryExpr::createSub(Res, PC, Context);
}

bool MCAsmInfo::isAcceptableChar(char C) const {
  return (C >= 'a' && C <= 'z') || (C >= 'A' && C <= 'Z') ||
         (C >= '0' && C <= '9') || C == '_' || C == '$' || C == '.' || C == '@';
}

bool MCAsmInfo::isValidUnquotedName(StringRef Name) const {
  if (Name.empty())
    return false;

// If any of the characters in the string is an unacceptable character, force
  // quotes.
  for (char C : Name) {
    if (!isAcceptableChar(C))
      return false;
  }

return true;
}

bool MCAsmInfo::shouldOmitSectionDirective(StringRef SectionName) const {
  // FIXME: Does .section .bss/.data/.text work everywhere??
  return SectionName == ".text" || SectionName == ".data" ||
        (SectionName == ".bss" && !usesELFSectionDirectiveForBSS());
}

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Editing: MCAsmInfo.cpp

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