File Manager

003 File Manager

Current Path: /usr/src/contrib/llvm-project/llvm/lib/MC

usr / src / contrib / llvm-project / llvm / lib / MC /

📁 ..
📄 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: MCSectionELF.cpp

//===- lib/MC/MCSectionELF.cpp - ELF 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/MCSectionELF.h"
#include "llvm/ADT/Triple.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>

using namespace llvm;

// Decides whether a '.section' directive
// should be printed before the section name.
bool MCSectionELF::ShouldOmitSectionDirective(StringRef Name,
                                              const MCAsmInfo &MAI) const {
  if (isUnique())
    return false;

return MAI.shouldOmitSectionDirective(Name);
}

static void printName(raw_ostream &OS, StringRef Name) {
  if (Name.find_first_not_of("0123456789_."
                             "abcdefghijklmnopqrstuvwxyz"
                             "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
    OS << Name;
    return;
  }
  OS << '"';
  for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
    if (*B == '"') // Unquoted "
      OS << "\\\"";
    else if (*B != '\\') // Neither " or backslash
      OS << *B;
    else if (B + 1 == E) // Trailing backslash
      OS << "\\\\";
    else {
      OS << B[0] << B[1]; // Quoted character
      ++B;
    }
  }
  OS << '"';
}

void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
                                        raw_ostream &OS,
                                        const MCExpr *Subsection) const {
  if (ShouldOmitSectionDirective(getName(), MAI)) {
    OS << '\t' << getName();
    if (Subsection) {
      OS << '\t';
      Subsection->print(OS, &MAI);
    }
    OS << '\n';
    return;
  }

OS << "\t.section\t";
  printName(OS, getName());

// Handle the weird solaris syntax if desired.
  if (MAI.usesSunStyleELFSectionSwitchSyntax() &&
      !(Flags & ELF::SHF_MERGE)) {
    if (Flags & ELF::SHF_ALLOC)
      OS << ",#alloc";
    if (Flags & ELF::SHF_EXECINSTR)
      OS << ",#execinstr";
    if (Flags & ELF::SHF_WRITE)
      OS << ",#write";
    if (Flags & ELF::SHF_EXCLUDE)
      OS << ",#exclude";
    if (Flags & ELF::SHF_TLS)
      OS << ",#tls";
    OS << '\n';
    return;
  }

OS << ",\"";
  if (Flags & ELF::SHF_ALLOC)
    OS << 'a';
  if (Flags & ELF::SHF_EXCLUDE)
    OS << 'e';
  if (Flags & ELF::SHF_EXECINSTR)
    OS << 'x';
  if (Flags & ELF::SHF_GROUP)
    OS << 'G';
  if (Flags & ELF::SHF_WRITE)
    OS << 'w';
  if (Flags & ELF::SHF_MERGE)
    OS << 'M';
  if (Flags & ELF::SHF_STRINGS)
    OS << 'S';
  if (Flags & ELF::SHF_TLS)
    OS << 'T';
  if (Flags & ELF::SHF_LINK_ORDER)
    OS << 'o';

// If there are target-specific flags, print them.
  Triple::ArchType Arch = T.getArch();
  if (Arch == Triple::xcore) {
    if (Flags & ELF::XCORE_SHF_CP_SECTION)
      OS << 'c';
    if (Flags & ELF::XCORE_SHF_DP_SECTION)
      OS << 'd';
  } else if (T.isARM() || T.isThumb()) {
    if (Flags & ELF::SHF_ARM_PURECODE)
      OS << 'y';
  } else if (Arch == Triple::hexagon) {
    if (Flags & ELF::SHF_HEX_GPREL)
      OS << 's';
  }

OS << '"';

OS << ',';

// If comment string is '@', e.g. as on ARM - use '%' instead
  if (MAI.getCommentString()[0] == '@')
    OS << '%';
  else
    OS << '@';

if (Type == ELF::SHT_INIT_ARRAY)
    OS << "init_array";
  else if (Type == ELF::SHT_FINI_ARRAY)
    OS << "fini_array";
  else if (Type == ELF::SHT_PREINIT_ARRAY)
    OS << "preinit_array";
  else if (Type == ELF::SHT_NOBITS)
    OS << "nobits";
  else if (Type == ELF::SHT_NOTE)
    OS << "note";
  else if (Type == ELF::SHT_PROGBITS)
    OS << "progbits";
  else if (Type == ELF::SHT_X86_64_UNWIND)
    OS << "unwind";
  else if (Type == ELF::SHT_MIPS_DWARF)
    // Print hex value of the flag while we do not have
    // any standard symbolic representation of the flag.
    OS << "0x7000001e";
  else if (Type == ELF::SHT_LLVM_ODRTAB)
    OS << "llvm_odrtab";
  else if (Type == ELF::SHT_LLVM_LINKER_OPTIONS)
    OS << "llvm_linker_options";
  else if (Type == ELF::SHT_LLVM_CALL_GRAPH_PROFILE)
    OS << "llvm_call_graph_profile";
  else if (Type == ELF::SHT_LLVM_DEPENDENT_LIBRARIES)
    OS << "llvm_dependent_libraries";
  else if (Type == ELF::SHT_LLVM_SYMPART)
    OS << "llvm_sympart";
  else
    report_fatal_error("unsupported type 0x" + Twine::utohexstr(Type) +
                       " for section " + getName());

if (EntrySize) {
    assert(Flags & ELF::SHF_MERGE);
    OS << "," << EntrySize;
  }

if (Flags & ELF::SHF_GROUP) {
    OS << ",";
    printName(OS, Group->getName());
    OS << ",comdat";
  }

if (Flags & ELF::SHF_LINK_ORDER) {
    assert(LinkedToSym);
    OS << ",";
    printName(OS, LinkedToSym->getName());
  }

if (isUnique())
    OS << ",unique," << UniqueID;

OS << '\n';

if (Subsection) {
    OS << "\t.subsection\t";
    Subsection->print(OS, &MAI);
    OS << '\n';
  }
}

bool MCSectionELF::UseCodeAlign() const {
  return getFlags() & ELF::SHF_EXECINSTR;
}

bool MCSectionELF::isVirtualSection() const {
  return getType() == ELF::SHT_NOBITS;
}

StringRef MCSectionELF::getVirtualSectionKind() const { return "SHT_NOBITS"; }

003 File Manager

Editing: MCSectionELF.cpp

Upload File

Create Folder