コード例 #1
0
ファイル: Mangler.cpp プロジェクト: alex-t/llvm
void llvm::emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV,
                                        const Triple &TT, Mangler &Mangler) {
  if (!GV->hasDLLExportStorageClass() || GV->isDeclaration())
    return;

  if (TT.isKnownWindowsMSVCEnvironment())
    OS << " /EXPORT:";
  else
    OS << " -export:";

  if (TT.isWindowsGNUEnvironment() || TT.isWindowsCygwinEnvironment()) {
    std::string Flag;
    raw_string_ostream FlagOS(Flag);
    Mangler.getNameWithPrefix(FlagOS, GV, false);
    FlagOS.flush();
    if (Flag[0] == GV->getParent()->getDataLayout().getGlobalPrefix())
      OS << Flag.substr(1);
    else
      OS << Flag;
  } else {
    Mangler.getNameWithPrefix(OS, GV, false);
  }

  if (!GV->getValueType()->isFunctionTy()) {
    if (TT.isKnownWindowsMSVCEnvironment())
      OS << ",DATA";
    else
      OS << ",data";
  }
}
コード例 #2
0
ファイル: Mangler.cpp プロジェクト: alex-t/llvm
void llvm::emitLinkerFlagsForUsedCOFF(raw_ostream &OS, const GlobalValue *GV,
                                      const Triple &T, Mangler &M) {
  if (!T.isKnownWindowsMSVCEnvironment())
    return;

  OS << " /INCLUDE:";
  M.getNameWithPrefix(OS, GV, false);
}
コード例 #3
0
ファイル: X86TargetMachine.cpp プロジェクト: sanjoy/llvm
static std::unique_ptr<TargetLoweringObjectFile> createTLOF(const Triple &TT) {
  if (TT.isOSBinFormatMachO()) {
    if (TT.getArch() == Triple::x86_64)
      return make_unique<X86_64MachoTargetObjectFile>();
    return make_unique<TargetLoweringObjectFileMachO>();
  }

  if (TT.isOSLinux() || TT.isOSNaCl())
    return make_unique<X86LinuxNaClTargetObjectFile>();
  if (TT.isOSBinFormatELF())
    return make_unique<X86ELFTargetObjectFile>();
  if (TT.isKnownWindowsMSVCEnvironment() || TT.isWindowsCoreCLREnvironment())
    return make_unique<X86WindowsTargetObjectFile>();
  if (TT.isOSBinFormatCOFF())
    return make_unique<TargetLoweringObjectFileCOFF>();
  llvm_unreachable("unknown subtarget type");
}
コード例 #4
0
ファイル: MCObjectFileInfo.cpp プロジェクト: amrav/pres_plus
void MCObjectFileInfo::initCOFFMCObjectFileInfo(Triple T) {
  EHFrameSection = Ctx->getCOFFSection(
      ".eh_frame", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                       COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
      SectionKind::getDataRel());

  bool IsWoA = T.getArch() == Triple::arm || T.getArch() == Triple::thumb;

  CommDirectiveSupportsAlignment = true;

  // COFF
  BSSSection = Ctx->getCOFFSection(
      ".bss", COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
                  COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
      SectionKind::getBSS());
  TextSection = Ctx->getCOFFSection(
      ".text",
      (IsWoA ? COFF::IMAGE_SCN_MEM_16BIT : (COFF::SectionCharacteristics)0) |
          COFF::IMAGE_SCN_CNT_CODE | COFF::IMAGE_SCN_MEM_EXECUTE |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getText());
  DataSection = Ctx->getCOFFSection(
      ".data", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ |
                   COFF::IMAGE_SCN_MEM_WRITE,
      SectionKind::getDataRel());
  ReadOnlySection = Ctx->getCOFFSection(
      ".rdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getReadOnly());

  if (T.isKnownWindowsMSVCEnvironment() || T.isWindowsItaniumEnvironment()) {
    StaticCtorSection =
        Ctx->getCOFFSection(".CRT$XCU", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                                            COFF::IMAGE_SCN_MEM_READ,
                            SectionKind::getReadOnly());
    StaticDtorSection =
        Ctx->getCOFFSection(".CRT$XTX", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                                            COFF::IMAGE_SCN_MEM_READ,
                            SectionKind::getReadOnly());
  } else {
    StaticCtorSection = Ctx->getCOFFSection(
        ".ctors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                      COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
        SectionKind::getDataRel());
    StaticDtorSection = Ctx->getCOFFSection(
        ".dtors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                      COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
        SectionKind::getDataRel());
  }

  // FIXME: We're emitting LSDA info into a readonly section on COFF, even
  // though it contains relocatable pointers.  In PIC mode, this is probably a
  // big runtime hit for C++ apps.  Either the contents of the LSDA need to be
  // adjusted or this should be a data section.
  assert(T.isOSWindows() && "Windows is the only supported COFF target");
  if (T.getArch() == Triple::x86_64) {
    // On Windows 64 with SEH, the LSDA is emitted into the .xdata section
    LSDASection = nullptr;
  } else {
    LSDASection = Ctx->getCOFFSection(".gcc_except_table",
                                      COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                                          COFF::IMAGE_SCN_MEM_READ,
                                      SectionKind::getReadOnly());
  }

  // Debug info.
  COFFDebugSymbolsSection =
      Ctx->getCOFFSection(".debug$S", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                          COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                                          COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());

  DwarfAbbrevSection = Ctx->getCOFFSection(
      ".debug_abbrev",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_abbrev");
  DwarfInfoSection = Ctx->getCOFFSection(
      ".debug_info",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_info");
  DwarfLineSection = Ctx->getCOFFSection(
      ".debug_line",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_line");

  DwarfFrameSection = Ctx->getCOFFSection(
      ".debug_frame",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfPubNamesSection = Ctx->getCOFFSection(
      ".debug_pubnames",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfPubTypesSection = Ctx->getCOFFSection(
      ".debug_pubtypes",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfGnuPubNamesSection = Ctx->getCOFFSection(
      ".debug_gnu_pubnames",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfGnuPubTypesSection = Ctx->getCOFFSection(
      ".debug_gnu_pubtypes",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfStrSection = Ctx->getCOFFSection(
      ".debug_str",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "info_string");
  DwarfLocSection = Ctx->getCOFFSection(
      ".debug_loc",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_debug_loc");
  DwarfARangesSection = Ctx->getCOFFSection(
      ".debug_aranges",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfRangesSection = Ctx->getCOFFSection(
      ".debug_ranges",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "debug_range");
  DwarfInfoDWOSection = Ctx->getCOFFSection(
      ".debug_info.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_info_dwo");
  DwarfTypesDWOSection = Ctx->getCOFFSection(
      ".debug_types.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_types_dwo");
  DwarfAbbrevDWOSection = Ctx->getCOFFSection(
      ".debug_abbrev.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "section_abbrev_dwo");
  DwarfStrDWOSection = Ctx->getCOFFSection(
      ".debug_str.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "skel_string");
  DwarfLineDWOSection = Ctx->getCOFFSection(
      ".debug_line.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfLocDWOSection = Ctx->getCOFFSection(
      ".debug_loc.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "skel_loc");
  DwarfStrOffDWOSection = Ctx->getCOFFSection(
      ".debug_str_offsets.dwo",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());
  DwarfAddrSection = Ctx->getCOFFSection(
      ".debug_addr",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "addr_sec");
  DwarfAccelNamesSection = Ctx->getCOFFSection(
      ".apple_names",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "names_begin");
  DwarfAccelNamespaceSection = Ctx->getCOFFSection(
      ".apple_namespaces",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "namespac_begin");
  DwarfAccelTypesSection = Ctx->getCOFFSection(
      ".apple_types",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "types_begin");
  DwarfAccelObjCSection = Ctx->getCOFFSection(
      ".apple_objc",
      COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
          COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata(), "objc_begin");

  DrectveSection = Ctx->getCOFFSection(
      ".drectve", COFF::IMAGE_SCN_LNK_INFO | COFF::IMAGE_SCN_LNK_REMOVE,
      SectionKind::getMetadata());

  PDataSection = Ctx->getCOFFSection(
      ".pdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getDataRel());

  XDataSection = Ctx->getCOFFSection(
      ".xdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getDataRel());

  SXDataSection = Ctx->getCOFFSection(".sxdata", COFF::IMAGE_SCN_LNK_INFO,
                                      SectionKind::getMetadata());

  TLSDataSection = Ctx->getCOFFSection(
      ".tls$", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ |
                   COFF::IMAGE_SCN_MEM_WRITE,
      SectionKind::getDataRel());

  StackMapSection = Ctx->getCOFFSection(".llvm_stackmaps",
                                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                                            COFF::IMAGE_SCN_MEM_READ,
                                        SectionKind::getReadOnly());
}
コード例 #5
0
void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
  // COFF
  BSSSection =
    Ctx->getCOFFSection(".bss",
                        COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ |
                        COFF::IMAGE_SCN_MEM_WRITE,
                        SectionKind::getBSS());
  TextSection =
    Ctx->getCOFFSection(".text",
                        COFF::IMAGE_SCN_CNT_CODE |
                        COFF::IMAGE_SCN_MEM_EXECUTE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getText());
  DataSection =
    Ctx->getCOFFSection(".data",
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ |
                        COFF::IMAGE_SCN_MEM_WRITE,
                        SectionKind::getDataRel());
  ReadOnlySection =
    Ctx->getCOFFSection(".rdata",
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getReadOnly());
  if (T.isKnownWindowsMSVCEnvironment()) {
    StaticCtorSection =
      Ctx->getCOFFSection(".CRT$XCU",
                          COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                          COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getReadOnly());
  } else {
    StaticCtorSection =
      Ctx->getCOFFSection(".ctors",
                          COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                          COFF::IMAGE_SCN_MEM_READ |
                          COFF::IMAGE_SCN_MEM_WRITE,
                          SectionKind::getDataRel());
  }


  if (T.isKnownWindowsMSVCEnvironment()) {
    StaticDtorSection =
      Ctx->getCOFFSection(".CRT$XTX",
                          COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                          COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getReadOnly());
  } else {
    StaticDtorSection =
      Ctx->getCOFFSection(".dtors",
                          COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                          COFF::IMAGE_SCN_MEM_READ |
                          COFF::IMAGE_SCN_MEM_WRITE,
                          SectionKind::getDataRel());
  }

  // FIXME: We're emitting LSDA info into a readonly section on COFF, even
  // though it contains relocatable pointers.  In PIC mode, this is probably a
  // big runtime hit for C++ apps.  Either the contents of the LSDA need to be
  // adjusted or this should be a data section.
  LSDASection =
    Ctx->getCOFFSection(".gcc_except_table",
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getReadOnly());

  // Debug info.
  COFFDebugSymbolsSection =
    Ctx->getCOFFSection(".debug$S",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());

  DwarfAbbrevSection =
    Ctx->getCOFFSection(".debug_abbrev",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfInfoSection =
    Ctx->getCOFFSection(".debug_info",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfLineSection =
    Ctx->getCOFFSection(".debug_line",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfFrameSection =
    Ctx->getCOFFSection(".debug_frame",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfPubNamesSection =
    Ctx->getCOFFSection(".debug_pubnames",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfPubTypesSection =
    Ctx->getCOFFSection(".debug_pubtypes",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfGnuPubNamesSection =
    Ctx->getCOFFSection(".debug_gnu_pubnames",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfGnuPubTypesSection =
    Ctx->getCOFFSection(".debug_gnu_pubtypes",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfStrSection =
    Ctx->getCOFFSection(".debug_str",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfLocSection =
    Ctx->getCOFFSection(".debug_loc",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfARangesSection =
    Ctx->getCOFFSection(".debug_aranges",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfRangesSection =
    Ctx->getCOFFSection(".debug_ranges",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfMacroInfoSection =
    Ctx->getCOFFSection(".debug_macinfo",
                        COFF::IMAGE_SCN_MEM_DISCARDABLE |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getMetadata());
  DwarfInfoDWOSection =
      Ctx->getCOFFSection(".debug_info.dwo", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                                COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());
  DwarfAbbrevDWOSection =
      Ctx->getCOFFSection(".debug_abbrev.dwo", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                                  COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());
  DwarfStrDWOSection =
      Ctx->getCOFFSection(".debug_str.dwo", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                               COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());
  DwarfLineDWOSection =
      Ctx->getCOFFSection(".debug_line.dwo", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                                COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());
  DwarfLocDWOSection =
      Ctx->getCOFFSection(".debug_loc.dwo", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                               COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());
  DwarfStrOffDWOSection =
      Ctx->getCOFFSection(".debug_str_offsets.dwo", COFF::IMAGE_SCN_MEM_DISCARDABLE |
                                                  COFF::IMAGE_SCN_MEM_READ,
                          SectionKind::getMetadata());
  DwarfAddrSection = Ctx->getCOFFSection(
      ".debug_addr", COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_MEM_READ,
      SectionKind::getMetadata());

  DrectveSection =
    Ctx->getCOFFSection(".drectve",
                        COFF::IMAGE_SCN_LNK_INFO,
                        SectionKind::getMetadata());

  PDataSection =
    Ctx->getCOFFSection(".pdata",
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getDataRel());

  XDataSection =
    Ctx->getCOFFSection(".xdata",
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ,
                        SectionKind::getDataRel());
  TLSDataSection =
    Ctx->getCOFFSection(".tls$",
                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
                        COFF::IMAGE_SCN_MEM_READ |
                        COFF::IMAGE_SCN_MEM_WRITE,
                        SectionKind::getDataRel());
}
コード例 #6
0
/// initialize - Initialize the set of available library functions based on the
/// specified target triple.  This should be carefully written so that a missing
/// target triple gets a sane set of defaults.
static void initialize(TargetLibraryInfo &TLI, const Triple &T,
                       const char **StandardNames) {
  initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());

#ifndef NDEBUG
  // Verify that the StandardNames array is in alphabetical order.
  for (unsigned F = 1; F < LibFunc::NumLibFuncs; ++F) {
    if (strcmp(StandardNames[F-1], StandardNames[F]) >= 0)
      llvm_unreachable("TargetLibraryInfo function names must be sorted");
  }
#endif // !NDEBUG
  
  // memset_pattern16 is only available on iOS 3.0 and Mac OS X 10.5 and later.
  if (T.isMacOSX()) {
    if (T.isMacOSXVersionLT(10, 5))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else if (T.isiOS()) {
    if (T.isOSVersionLT(3, 0))
      TLI.setUnavailable(LibFunc::memset_pattern16);
  } else {
    TLI.setUnavailable(LibFunc::memset_pattern16);
  }

  if (!hasSinCosPiStret(T)) {
    TLI.setUnavailable(LibFunc::sinpi);
    TLI.setUnavailable(LibFunc::sinpif);
    TLI.setUnavailable(LibFunc::cospi);
    TLI.setUnavailable(LibFunc::cospif);
    TLI.setUnavailable(LibFunc::sincospi_stret);
    TLI.setUnavailable(LibFunc::sincospif_stret);
  }

  if (T.isMacOSX() && T.getArch() == Triple::x86 &&
      !T.isMacOSXVersionLT(10, 7)) {
    // x86-32 OSX has a scheme where fwrite and fputs (and some other functions
    // we don't care about) have two versions; on recent OSX, the one we want
    // has a $UNIX2003 suffix. The two implementations are identical except
    // for the return value in some edge cases.  However, we don't want to
    // generate code that depends on the old symbols.
    TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
    TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
  }

  // iprintf and friends are only available on XCore and TCE.
  if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
    TLI.setUnavailable(LibFunc::iprintf);
    TLI.setUnavailable(LibFunc::siprintf);
    TLI.setUnavailable(LibFunc::fiprintf);
  }

  if (T.isKnownWindowsMSVCEnvironment()) {
    // Win32 does not support long double
    TLI.setUnavailable(LibFunc::acosl);
    TLI.setUnavailable(LibFunc::asinl);
    TLI.setUnavailable(LibFunc::atanl);
    TLI.setUnavailable(LibFunc::atan2l);
    TLI.setUnavailable(LibFunc::ceill);
    TLI.setUnavailable(LibFunc::copysignl);
    TLI.setUnavailable(LibFunc::cosl);
    TLI.setUnavailable(LibFunc::coshl);
    TLI.setUnavailable(LibFunc::expl);
    TLI.setUnavailable(LibFunc::fabsf); // Win32 and Win64 both lack fabsf
    TLI.setUnavailable(LibFunc::fabsl);
    TLI.setUnavailable(LibFunc::floorl);
    TLI.setUnavailable(LibFunc::fmaxl);
    TLI.setUnavailable(LibFunc::fminl);
    TLI.setUnavailable(LibFunc::fmodl);
    TLI.setUnavailable(LibFunc::frexpl);
    TLI.setUnavailable(LibFunc::ldexpf);
    TLI.setUnavailable(LibFunc::ldexpl);
    TLI.setUnavailable(LibFunc::logl);
    TLI.setUnavailable(LibFunc::modfl);
    TLI.setUnavailable(LibFunc::powl);
    TLI.setUnavailable(LibFunc::sinl);
    TLI.setUnavailable(LibFunc::sinhl);
    TLI.setUnavailable(LibFunc::sqrtl);
    TLI.setUnavailable(LibFunc::tanl);
    TLI.setUnavailable(LibFunc::tanhl);

    // Win32 only has C89 math
    TLI.setUnavailable(LibFunc::acosh);
    TLI.setUnavailable(LibFunc::acoshf);
    TLI.setUnavailable(LibFunc::acoshl);
    TLI.setUnavailable(LibFunc::asinh);
    TLI.setUnavailable(LibFunc::asinhf);
    TLI.setUnavailable(LibFunc::asinhl);
    TLI.setUnavailable(LibFunc::atanh);
    TLI.setUnavailable(LibFunc::atanhf);
    TLI.setUnavailable(LibFunc::atanhl);
    TLI.setUnavailable(LibFunc::cbrt);
    TLI.setUnavailable(LibFunc::cbrtf);
    TLI.setUnavailable(LibFunc::cbrtl);
    TLI.setUnavailable(LibFunc::exp2);
    TLI.setUnavailable(LibFunc::exp2f);
    TLI.setUnavailable(LibFunc::exp2l);
    TLI.setUnavailable(LibFunc::expm1);
    TLI.setUnavailable(LibFunc::expm1f);
    TLI.setUnavailable(LibFunc::expm1l);
    TLI.setUnavailable(LibFunc::log2);
    TLI.setUnavailable(LibFunc::log2f);
    TLI.setUnavailable(LibFunc::log2l);
    TLI.setUnavailable(LibFunc::log1p);
    TLI.setUnavailable(LibFunc::log1pf);
    TLI.setUnavailable(LibFunc::log1pl);
    TLI.setUnavailable(LibFunc::logb);
    TLI.setUnavailable(LibFunc::logbf);
    TLI.setUnavailable(LibFunc::logbl);
    TLI.setUnavailable(LibFunc::nearbyint);
    TLI.setUnavailable(LibFunc::nearbyintf);
    TLI.setUnavailable(LibFunc::nearbyintl);
    TLI.setUnavailable(LibFunc::rint);
    TLI.setUnavailable(LibFunc::rintf);
    TLI.setUnavailable(LibFunc::rintl);
    TLI.setUnavailable(LibFunc::round);
    TLI.setUnavailable(LibFunc::roundf);
    TLI.setUnavailable(LibFunc::roundl);
    TLI.setUnavailable(LibFunc::trunc);
    TLI.setUnavailable(LibFunc::truncf);
    TLI.setUnavailable(LibFunc::truncl);

    // Win32 provides some C99 math with mangled names
    TLI.setAvailableWithName(LibFunc::copysign, "_copysign");

    if (T.getArch() == Triple::x86) {
      // Win32 on x86 implements single-precision math functions as macros
      TLI.setUnavailable(LibFunc::acosf);
      TLI.setUnavailable(LibFunc::asinf);
      TLI.setUnavailable(LibFunc::atanf);
      TLI.setUnavailable(LibFunc::atan2f);
      TLI.setUnavailable(LibFunc::ceilf);
      TLI.setUnavailable(LibFunc::copysignf);
      TLI.setUnavailable(LibFunc::cosf);
      TLI.setUnavailable(LibFunc::coshf);
      TLI.setUnavailable(LibFunc::expf);
      TLI.setUnavailable(LibFunc::floorf);
      TLI.setUnavailable(LibFunc::fminf);
      TLI.setUnavailable(LibFunc::fmaxf);
      TLI.setUnavailable(LibFunc::fmodf);
      TLI.setUnavailable(LibFunc::logf);
      TLI.setUnavailable(LibFunc::powf);
      TLI.setUnavailable(LibFunc::sinf);
      TLI.setUnavailable(LibFunc::sinhf);
      TLI.setUnavailable(LibFunc::sqrtf);
      TLI.setUnavailable(LibFunc::tanf);
      TLI.setUnavailable(LibFunc::tanhf);
    }

    // Win32 does *not* provide provide these functions, but they are
    // generally available on POSIX-compliant systems:
    TLI.setUnavailable(LibFunc::access);
    TLI.setUnavailable(LibFunc::bcmp);
    TLI.setUnavailable(LibFunc::bcopy);
    TLI.setUnavailable(LibFunc::bzero);
    TLI.setUnavailable(LibFunc::chmod);
    TLI.setUnavailable(LibFunc::chown);
    TLI.setUnavailable(LibFunc::closedir);
    TLI.setUnavailable(LibFunc::ctermid);
    TLI.setUnavailable(LibFunc::fdopen);
    TLI.setUnavailable(LibFunc::ffs);
    TLI.setUnavailable(LibFunc::fileno);
    TLI.setUnavailable(LibFunc::flockfile);
    TLI.setUnavailable(LibFunc::fseeko);
    TLI.setUnavailable(LibFunc::fstat);
    TLI.setUnavailable(LibFunc::fstatvfs);
    TLI.setUnavailable(LibFunc::ftello);
    TLI.setUnavailable(LibFunc::ftrylockfile);
    TLI.setUnavailable(LibFunc::funlockfile);
    TLI.setUnavailable(LibFunc::getc_unlocked);
    TLI.setUnavailable(LibFunc::getitimer);
    TLI.setUnavailable(LibFunc::getlogin_r);
    TLI.setUnavailable(LibFunc::getpwnam);
    TLI.setUnavailable(LibFunc::gettimeofday);
    TLI.setUnavailable(LibFunc::htonl);
    TLI.setUnavailable(LibFunc::htons);
    TLI.setUnavailable(LibFunc::lchown);
    TLI.setUnavailable(LibFunc::lstat);
    TLI.setUnavailable(LibFunc::memccpy);
    TLI.setUnavailable(LibFunc::mkdir);
    TLI.setUnavailable(LibFunc::ntohl);
    TLI.setUnavailable(LibFunc::ntohs);
    TLI.setUnavailable(LibFunc::open);
    TLI.setUnavailable(LibFunc::opendir);
    TLI.setUnavailable(LibFunc::pclose);
    TLI.setUnavailable(LibFunc::popen);
    TLI.setUnavailable(LibFunc::pread);
    TLI.setUnavailable(LibFunc::pwrite);
    TLI.setUnavailable(LibFunc::read);
    TLI.setUnavailable(LibFunc::readlink);
    TLI.setUnavailable(LibFunc::realpath);
    TLI.setUnavailable(LibFunc::rmdir);
    TLI.setUnavailable(LibFunc::setitimer);
    TLI.setUnavailable(LibFunc::stat);
    TLI.setUnavailable(LibFunc::statvfs);
    TLI.setUnavailable(LibFunc::stpcpy);
    TLI.setUnavailable(LibFunc::stpncpy);
    TLI.setUnavailable(LibFunc::strcasecmp);
    TLI.setUnavailable(LibFunc::strncasecmp);
    TLI.setUnavailable(LibFunc::times);
    TLI.setUnavailable(LibFunc::uname);
    TLI.setUnavailable(LibFunc::unlink);
    TLI.setUnavailable(LibFunc::unsetenv);
    TLI.setUnavailable(LibFunc::utime);
    TLI.setUnavailable(LibFunc::utimes);
    TLI.setUnavailable(LibFunc::write);

    // Win32 does *not* provide provide these functions, but they are
    // specified by C99:
    TLI.setUnavailable(LibFunc::atoll);
    TLI.setUnavailable(LibFunc::frexpf);
    TLI.setUnavailable(LibFunc::llabs);
  }

  switch (T.getOS()) {
  case Triple::MacOSX:
    // exp10 and exp10f are not available on OS X until 10.9 and iOS until 7.0
    // and their names are __exp10 and __exp10f. exp10l is not available on
    // OS X or iOS.
    TLI.setUnavailable(LibFunc::exp10l);
    if (T.isMacOSXVersionLT(10, 9)) {
      TLI.setUnavailable(LibFunc::exp10);
      TLI.setUnavailable(LibFunc::exp10f);
    } else {
      TLI.setAvailableWithName(LibFunc::exp10, "__exp10");
      TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f");
    }
    break;
  case Triple::IOS:
    TLI.setUnavailable(LibFunc::exp10l);
    if (T.isOSVersionLT(7, 0)) {
      TLI.setUnavailable(LibFunc::exp10);
      TLI.setUnavailable(LibFunc::exp10f);
    } else {
      TLI.setAvailableWithName(LibFunc::exp10, "__exp10");
      TLI.setAvailableWithName(LibFunc::exp10f, "__exp10f");
    }
    break;
  case Triple::Linux:
    // exp10, exp10f, exp10l is available on Linux (GLIBC) but are extremely
    // buggy prior to glibc version 2.18. Until this version is widely deployed
    // or we have a reasonable detection strategy, we cannot use exp10 reliably
    // on Linux.
    //
    // Fall through to disable all of them.
  default:
    TLI.setUnavailable(LibFunc::exp10);
    TLI.setUnavailable(LibFunc::exp10f);
    TLI.setUnavailable(LibFunc::exp10l);
  }

  // ffsl is available on at least Darwin, Mac OS X, iOS, FreeBSD, and
  // Linux (GLIBC):
  // http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/ffsl.3.html
  // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsl.c
  // http://www.gnu.org/software/gnulib/manual/html_node/ffsl.html
  switch (T.getOS()) {
  case Triple::Darwin:
  case Triple::MacOSX:
  case Triple::IOS:
  case Triple::FreeBSD:
  case Triple::Linux:
    break;
  default:
    TLI.setUnavailable(LibFunc::ffsl);
  }

  // ffsll is available on at least FreeBSD and Linux (GLIBC):
  // http://svn.freebsd.org/base/user/eri/pf45/head/lib/libc/string/ffsll.c
  // http://www.gnu.org/software/gnulib/manual/html_node/ffsll.html
  switch (T.getOS()) {
  case Triple::FreeBSD:
  case Triple::Linux:
    break;
  default:
    TLI.setUnavailable(LibFunc::ffsll);
  }

  // The following functions are available on at least Linux:
  if (!T.isOSLinux()) {
    TLI.setUnavailable(LibFunc::dunder_strdup);
    TLI.setUnavailable(LibFunc::dunder_strtok_r);
    TLI.setUnavailable(LibFunc::dunder_isoc99_scanf);
    TLI.setUnavailable(LibFunc::dunder_isoc99_sscanf);
    TLI.setUnavailable(LibFunc::under_IO_getc);
    TLI.setUnavailable(LibFunc::under_IO_putc);
    TLI.setUnavailable(LibFunc::memalign);
    TLI.setUnavailable(LibFunc::fopen64);
    TLI.setUnavailable(LibFunc::fseeko64);
    TLI.setUnavailable(LibFunc::fstat64);
    TLI.setUnavailable(LibFunc::fstatvfs64);
    TLI.setUnavailable(LibFunc::ftello64);
    TLI.setUnavailable(LibFunc::lstat64);
    TLI.setUnavailable(LibFunc::open64);
    TLI.setUnavailable(LibFunc::stat64);
    TLI.setUnavailable(LibFunc::statvfs64);
    TLI.setUnavailable(LibFunc::tmpfile64);
  }
}