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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: MCSection.cpp

//===- lib/MC/MCSection.cpp - Machine Code Section Representation ---------===//
//
// 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/MCSection.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCFragment.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <utility>

using namespace llvm;

MCSection::MCSection(SectionVariant V, StringRef Name, SectionKind K,
                     MCSymbol *Begin)
    : Begin(Begin), BundleGroupBeforeFirstInst(false), HasInstructions(false),
      IsRegistered(false), DummyFragment(this), Name(Name), Variant(V),
      Kind(K) {}

MCSymbol *MCSection::getEndSymbol(MCContext &Ctx) {
  if (!End)
    End = Ctx.createTempSymbol("sec_end", true);
  return End;
}

bool MCSection::hasEnded() const { return End && End->isInSection(); }

MCSection::~MCSection() = default;

void MCSection::setBundleLockState(BundleLockStateType NewState) {
  if (NewState == NotBundleLocked) {
    if (BundleLockNestingDepth == 0) {
      report_fatal_error("Mismatched bundle_lock/unlock directives");
    }
    if (--BundleLockNestingDepth == 0) {
      BundleLockState = NotBundleLocked;
    }
    return;
  }

// If any of the directives is an align_to_end directive, the whole nested
  // group is align_to_end. So don't downgrade from align_to_end to just locked.
  if (BundleLockState != BundleLockedAlignToEnd) {
    BundleLockState = NewState;
  }
  ++BundleLockNestingDepth;
}

MCSection::iterator
MCSection::getSubsectionInsertionPoint(unsigned Subsection) {
  if (Subsection == 0 && SubsectionFragmentMap.empty())
    return end();

SmallVectorImpl<std::pair<unsigned, MCFragment *>>::iterator MI =
      std::lower_bound(SubsectionFragmentMap.begin(),
                       SubsectionFragmentMap.end(),
                       std::make_pair(Subsection, (MCFragment *)nullptr));
  bool ExactMatch = false;
  if (MI != SubsectionFragmentMap.end()) {
    ExactMatch = MI->first == Subsection;
    if (ExactMatch)
      ++MI;
  }
  iterator IP;
  if (MI == SubsectionFragmentMap.end())
    IP = end();
  else
    IP = MI->second->getIterator();
  if (!ExactMatch && Subsection != 0) {
    // The GNU as documentation claims that subsections have an alignment of 4,
    // although this appears not to be the case.
    MCFragment *F = new MCDataFragment();
    SubsectionFragmentMap.insert(MI, std::make_pair(Subsection, F));
    getFragmentList().insert(IP, F);
    F->setParent(this);
  }

return IP;
}

StringRef MCSection::getVirtualSectionKind() const { return "virtual"; }

void MCSection::addPendingLabel(MCSymbol *label, unsigned Subsection) {
  PendingLabels.push_back(PendingLabel(label, Subsection));
}

void MCSection::flushPendingLabels(MCFragment *F, uint64_t FOffset,
				   unsigned Subsection) {
  if (PendingLabels.empty())
    return;

// Set the fragment and fragment offset for all pending symbols in the
  // specified Subsection, and remove those symbols from the pending list.
  for (auto It = PendingLabels.begin(); It != PendingLabels.end(); ++It) {
    PendingLabel& Label = *It;
    if (Label.Subsection == Subsection) {
      Label.Sym->setFragment(F);
      Label.Sym->setOffset(FOffset);
      PendingLabels.erase(It--);
    }
  }
}

void MCSection::flushPendingLabels() {
  // Make sure all remaining pending labels point to data fragments, by
  // creating new empty data fragments for each Subsection with labels pending.
  while (!PendingLabels.empty()) {
    PendingLabel& Label = PendingLabels[0];
    iterator CurInsertionPoint =
      this->getSubsectionInsertionPoint(Label.Subsection);
    MCFragment *F = new MCDataFragment();
    getFragmentList().insert(CurInsertionPoint, F);
    F->setParent(this);
    flushPendingLabels(F, 0, Label.Subsection);
  }
}

#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
LLVM_DUMP_METHOD void MCSection::dump() const {
  raw_ostream &OS = errs();

OS << "<MCSection";
  OS << " Fragments:[\n      ";
  for (auto it = begin(), ie = end(); it != ie; ++it) {
    if (it != begin())
      OS << ",\n      ";
    it->dump();
  }
  OS << "]>";
}
#endif

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Editing: MCSection.cpp

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