C++ LLVMContext::setDiagnosticHandler方法代码示例

int main(int argc, char **argv) {
  // Print a stack trace if we signal out.
  sys::PrintStackTraceOnErrorSignal();
  PrettyStackTraceProgram X(argc, argv);

  LLVMContext Context;
  Context.setDiagnosticHandler(diagnosticHandlerWithContext, nullptr, true);

  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
  cl::ParseCommandLineOptions(argc, argv, "llvm linker\n");

  auto Composite = make_unique<Module>("llvm-link", Context);
  Linker L(*Composite);

  unsigned Flags = Linker::Flags::None;
  if (Internalize)
    Flags |= Linker::Flags::InternalizeLinkedSymbols;
  if (OnlyNeeded)
    Flags |= Linker::Flags::LinkOnlyNeeded;

  // First add all the regular input files
  if (!linkFiles(argv[0], Context, L, InputFilenames, Flags))
    return 1;

  // Next the -override ones.
  if (!linkFiles(argv[0], Context, L, OverridingInputs,
                 Flags | Linker::Flags::OverrideFromSrc))
    return 1;

  // Import any functions requested via -import
  if (!importFunctions(argv[0], Context, L))
    return 1;

  if (DumpAsm) errs() << "Here's the assembly:\n" << *Composite;

  std::error_code EC;
  tool_output_file Out(OutputFilename, EC, sys::fs::F_None);
  if (EC) {
    errs() << EC.message() << '\n';
    return 1;
  }

  if (verifyModule(*Composite, &errs())) {
    errs() << argv[0] << ": error: linked module is broken!\n";
    return 1;
  }

  if (Verbose) errs() << "Writing bitcode...\n";
  if (OutputAssembly) {
    Composite->print(Out.os(), nullptr, PreserveAssemblyUseListOrder);
  } else if (Force || !CheckBitcodeOutputToConsole(Out.os(), true))
    WriteBitcodeToFile(Composite.get(), Out.os(), PreserveBitcodeUseListOrder);

  // Declare success.
  Out.keep();

  return 0;
}

int main(int argc, char **argv) {
  // Print a stack trace if we signal out.
  sys::PrintStackTraceOnErrorSignal(argv[0]);
  PrettyStackTraceProgram X(argc, argv);

  LLVMContext Context;
  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.

  Context.setDiagnosticHandler(diagnosticHandler, argv[0]);

  cl::ParseCommandLineOptions(argc, argv, "llvm .bc -> .ll disassembler\n");

  Expected<std::unique_ptr<Module>> MOrErr = openInputFile(Context);
  if (!MOrErr) {
    handleAllErrors(MOrErr.takeError(), [&](ErrorInfoBase &EIB) {
      errs() << argv[0] << ": ";
      EIB.log(errs());
      errs() << '\n';
    });
    return 1;
  }
  std::unique_ptr<Module> M = std::move(*MOrErr);

  // Just use stdout.  We won't actually print anything on it.
  if (DontPrint)
    OutputFilename = "-";

  if (OutputFilename.empty()) { // Unspecified output, infer it.
    if (InputFilename == "-") {
      OutputFilename = "-";
    } else {
      StringRef IFN = InputFilename;
      OutputFilename = (IFN.endswith(".bc") ? IFN.drop_back(3) : IFN).str();
      OutputFilename += ".ll";
    }
  }

  std::error_code EC;
  std::unique_ptr<tool_output_file> Out(
      new tool_output_file(OutputFilename, EC, sys::fs::F_None));
  if (EC) {
    errs() << EC.message() << '\n';
    return 1;
  }

  std::unique_ptr<AssemblyAnnotationWriter> Annotator;
  if (ShowAnnotations)
    Annotator.reset(new CommentWriter());

  // All that llvm-dis does is write the assembly to a file.
  if (!DontPrint)
    M->print(Out->os(), Annotator.get(), PreserveAssemblyUseListOrder);

  // Declare success.
  Out->keep();

  return 0;
}

// main - Entry point for the llc compiler.
//
int main(int argc, char **argv) {
  sys::PrintStackTraceOnErrorSignal(argv[0]);
  PrettyStackTraceProgram X(argc, argv);

  // Enable debug stream buffering.
  EnableDebugBuffering = true;

  LLVMContext Context;
  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.

  // Initialize targets first, so that --version shows registered targets.
  InitializeAllTargets();
  InitializeAllTargetMCs();
  InitializeAllAsmPrinters();
  InitializeAllAsmParsers();

  // Initialize codegen and IR passes used by llc so that the -print-after,
  // -print-before, and -stop-after options work.
  PassRegistry *Registry = PassRegistry::getPassRegistry();
  initializeCore(*Registry);
  initializeCodeGen(*Registry);
  initializeLoopStrengthReducePass(*Registry);
  initializeLowerIntrinsicsPass(*Registry);
  initializeCountingFunctionInserterPass(*Registry);
  initializeUnreachableBlockElimLegacyPassPass(*Registry);
  initializeConstantHoistingLegacyPassPass(*Registry);

  // Register the target printer for --version.
  cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);

  cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");

  Context.setDiscardValueNames(DiscardValueNames);

  // Set a diagnostic handler that doesn't exit on the first error
  bool HasError = false;
  Context.setDiagnosticHandler(DiagnosticHandler, &HasError);

  // Compile the module TimeCompilations times to give better compile time
  // metrics.
  for (unsigned I = TimeCompilations; I; --I)
    if (int RetVal = compileModule(argv, Context))
      return RetVal;
  return 0;
}

/// Perform the ThinLTO backend on a single module, invoking the LTO and codegen
/// pipelines.
static void thinLTOBackendTask(claimed_file &F, const void *View,
                               ld_plugin_input_file &File,
                               raw_fd_ostream *ApiFile,
                               const ModuleSummaryIndex &CombinedIndex,
                               raw_fd_ostream *OS, unsigned TaskID) {
  // Need to use a separate context for each task
  LLVMContext Context;
  Context.setDiagnosticHandler(diagnosticHandlerForContext, nullptr, true);

  std::unique_ptr<llvm::Module> NewModule(new llvm::Module(File.name, Context));
  IRMover L(*NewModule.get());

  StringSet<> Dummy;
  if (linkInModule(Context, L, F, View, File, ApiFile, Dummy, Dummy))
    message(LDPL_FATAL, "Failed to rename module for ThinLTO");
  if (renameModuleForThinLTO(*NewModule, CombinedIndex))
    message(LDPL_FATAL, "Failed to rename module for ThinLTO");

  CodeGen codeGen(std::move(NewModule), OS, TaskID, &CombinedIndex, File.name);
  codeGen.runAll();
}

// main - Entry point for the llc compiler.
//
int main(int argc, char **argv) {
  sys::PrintStackTraceOnErrorSignal(argv[0]);
  PrettyStackTraceProgram X(argc, argv);

  // Enable debug stream buffering.
  EnableDebugBuffering = true;

  LLVMContext Context;
  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.

  // Initialize targets first, so that --version shows registered targets.
  InitializeAllTargets();
  InitializeAllTargetMCs();
  InitializeAllAsmPrinters();
  InitializeAllAsmParsers();

  // Initialize codegen and IR passes used by llc so that the -print-after,
  // -print-before, and -stop-after options work.
  PassRegistry *Registry = PassRegistry::getPassRegistry();
  initializeCore(*Registry);
  initializeCodeGen(*Registry);
  initializeLoopStrengthReducePass(*Registry);
  initializeLowerIntrinsicsPass(*Registry);
  initializeCountingFunctionInserterPass(*Registry);
  initializeUnreachableBlockElimLegacyPassPass(*Registry);
  initializeConstantHoistingLegacyPassPass(*Registry);
  initializeScalarOpts(*Registry);
  initializeVectorization(*Registry);

  // Register the target printer for --version.
  cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);

  cl::ParseCommandLineOptions(argc, argv, "llvm system compiler\n");

  Context.setDiscardValueNames(DiscardValueNames);

  // Set a diagnostic handler that doesn't exit on the first error
  bool HasError = false;
  Context.setDiagnosticHandler(DiagnosticHandler, &HasError);
  Context.setInlineAsmDiagnosticHandler(InlineAsmDiagHandler, &HasError);

  if (PassRemarksWithHotness)
    Context.setDiagnosticHotnessRequested(true);

  std::unique_ptr<tool_output_file> YamlFile;
  if (RemarksFilename != "") {
    std::error_code EC;
    YamlFile = llvm::make_unique<tool_output_file>(RemarksFilename, EC,
                                                   sys::fs::F_None);
    if (EC) {
      errs() << EC.message() << '\n';
      return 1;
    }
    Context.setDiagnosticsOutputFile(
        llvm::make_unique<yaml::Output>(YamlFile->os()));
  }

  // Compile the module TimeCompilations times to give better compile time
  // metrics.
  for (unsigned I = TimeCompilations; I; --I)
    if (int RetVal = compileModule(argv, Context))
      return RetVal;

  if (YamlFile)
    YamlFile->keep();
  return 0;
}

/// gold informs us that all symbols have been read. At this point, we use
/// get_symbols to see if any of our definitions have been overridden by a
/// native object file. Then, perform optimization and codegen.
static ld_plugin_status allSymbolsReadHook(raw_fd_ostream *ApiFile) {
  if (Modules.empty())
    return LDPS_OK;

  LLVMContext Context;
  Context.setDiagnosticHandler(diagnosticHandler, nullptr, true);

  // If we are doing ThinLTO compilation, simply build the combined
  // function index/summary and emit it. We don't need to parse the modules
  // and link them in this case.
  if (options::thinlto) {
    std::unique_ptr<FunctionInfoIndex> CombinedIndex(new FunctionInfoIndex());
    uint64_t NextModuleId = 0;
    for (claimed_file &F : Modules) {
      ld_plugin_input_file File;
      if (get_input_file(F.handle, &File) != LDPS_OK)
        message(LDPL_FATAL, "Failed to get file information");

      std::unique_ptr<FunctionInfoIndex> Index =
          getFunctionIndexForFile(Context, F, File);
      CombinedIndex->mergeFrom(std::move(Index), ++NextModuleId);
    }

    std::error_code EC;
    raw_fd_ostream OS(output_name + ".thinlto.bc", EC,
                      sys::fs::OpenFlags::F_None);
    if (EC)
      message(LDPL_FATAL, "Unable to open %s.thinlto.bc for writing: %s",
              output_name.data(), EC.message().c_str());
    WriteFunctionSummaryToFile(CombinedIndex.get(), OS);
    OS.close();

    cleanup_hook();
    exit(0);
  }

  std::unique_ptr<Module> Combined(new Module("ld-temp.o", Context));
  Linker L(Combined.get());

  std::string DefaultTriple = sys::getDefaultTargetTriple();

  StringSet<> Internalize;
  StringSet<> Maybe;
  for (claimed_file &F : Modules) {
    ld_plugin_input_file File;
    if (get_input_file(F.handle, &File) != LDPS_OK)
      message(LDPL_FATAL, "Failed to get file information");
    std::unique_ptr<Module> M =
        getModuleForFile(Context, F, File, ApiFile, Internalize, Maybe);
    if (!options::triple.empty())
      M->setTargetTriple(options::triple.c_str());
    else if (M->getTargetTriple().empty()) {
      M->setTargetTriple(DefaultTriple);
    }

    if (L.linkInModule(M.get()))
      message(LDPL_FATAL, "Failed to link module");
    if (release_input_file(F.handle) != LDPS_OK)
      message(LDPL_FATAL, "Failed to release file information");
  }

  for (const auto &Name : Internalize) {
    GlobalValue *GV = Combined->getNamedValue(Name.first());
    if (GV)
      internalize(*GV);
  }

  for (const auto &Name : Maybe) {
    GlobalValue *GV = Combined->getNamedValue(Name.first());
    if (!GV)
      continue;
    GV->setLinkage(GlobalValue::LinkOnceODRLinkage);
    if (canBeOmittedFromSymbolTable(GV))
      internalize(*GV);
  }

  if (options::TheOutputType == options::OT_DISABLE)
    return LDPS_OK;

  if (options::TheOutputType != options::OT_NORMAL) {
    std::string path;
    if (options::TheOutputType == options::OT_BC_ONLY)
      path = output_name;
    else
      path = output_name + ".bc";
    saveBCFile(path, *L.getModule());
    if (options::TheOutputType == options::OT_BC_ONLY)
      return LDPS_OK;
  }

  codegen(std::move(Combined));

  if (!options::extra_library_path.empty() &&
      set_extra_library_path(options::extra_library_path.c_str()) != LDPS_OK)
    message(LDPL_FATAL, "Unable to set the extra library path.");

  return LDPS_OK;
//.........这里部分代码省略.........

/// Called by gold to see whether this file is one that our plugin can handle.
/// We'll try to open it and register all the symbols with add_symbol if
/// possible.
static ld_plugin_status claim_file_hook(const ld_plugin_input_file *file,
                                        int *claimed) {
  LLVMContext Context;
  MemoryBufferRef BufferRef;
  std::unique_ptr<MemoryBuffer> Buffer;
  if (get_view) {
    const void *view;
    if (get_view(file->handle, &view) != LDPS_OK) {
      message(LDPL_ERROR, "Failed to get a view of %s", file->name);
      return LDPS_ERR;
    }
    BufferRef =
        MemoryBufferRef(StringRef((const char *)view, file->filesize), "");
  } else {
    int64_t offset = 0;
    // Gold has found what might be IR part-way inside of a file, such as
    // an .a archive.
    if (file->offset) {
      offset = file->offset;
    }
    ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
        MemoryBuffer::getOpenFileSlice(file->fd, file->name, file->filesize,
                                       offset);
    if (std::error_code EC = BufferOrErr.getError()) {
      message(LDPL_ERROR, EC.message().c_str());
      return LDPS_ERR;
    }
    Buffer = std::move(BufferOrErr.get());
    BufferRef = Buffer->getMemBufferRef();
  }

  Context.setDiagnosticHandler(diagnosticHandler);
  ErrorOr<std::unique_ptr<object::IRObjectFile>> ObjOrErr =
      object::IRObjectFile::create(BufferRef, Context);
  std::error_code EC = ObjOrErr.getError();
  if (EC == object::object_error::invalid_file_type ||
      EC == object::object_error::bitcode_section_not_found)
    return LDPS_OK;

  *claimed = 1;

  if (EC) {
    message(LDPL_ERROR, "LLVM gold plugin has failed to create LTO module: %s",
            EC.message().c_str());
    return LDPS_ERR;
  }
  std::unique_ptr<object::IRObjectFile> Obj = std::move(*ObjOrErr);

  Modules.resize(Modules.size() + 1);
  claimed_file &cf = Modules.back();

  cf.handle = file->handle;

  // If we are doing ThinLTO compilation, don't need to process the symbols.
  // Later we simply build a combined index file after all files are claimed.
  if (options::thinlto) return LDPS_OK;

  for (auto &Sym : Obj->symbols()) {
    uint32_t Symflags = Sym.getFlags();
    if (shouldSkip(Symflags))
      continue;

    cf.syms.push_back(ld_plugin_symbol());
    ld_plugin_symbol &sym = cf.syms.back();
    sym.version = nullptr;

    SmallString<64> Name;
    {
      raw_svector_ostream OS(Name);
      Sym.printName(OS);
    }
    sym.name = strdup(Name.c_str());

    const GlobalValue *GV = Obj->getSymbolGV(Sym.getRawDataRefImpl());

    sym.visibility = LDPV_DEFAULT;
    if (GV) {
      switch (GV->getVisibility()) {
      case GlobalValue::DefaultVisibility:
        sym.visibility = LDPV_DEFAULT;
        break;
      case GlobalValue::HiddenVisibility:
        sym.visibility = LDPV_HIDDEN;
        break;
      case GlobalValue::ProtectedVisibility:
        sym.visibility = LDPV_PROTECTED;
        break;
      }
    }

    if (Symflags & object::BasicSymbolRef::SF_Undefined) {
      sym.def = LDPK_UNDEF;
      if (GV && GV->hasExternalWeakLinkage())
        sym.def = LDPK_WEAKUNDEF;
    } else {
      sym.def = LDPK_DEF;
      if (GV) {
//.........这里部分代码省略.........

int main(int argc, char **argv) {
  // Print a stack trace if we signal out.
  sys::PrintStackTraceOnErrorSignal();
  PrettyStackTraceProgram X(argc, argv);

  llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
  cl::ParseCommandLineOptions(argc, argv, "llvm LTO linker\n");

  if (OptLevel < '0' || OptLevel > '3')
    error("optimization level must be between 0 and 3");

  // Initialize the configured targets.
  InitializeAllTargets();
  InitializeAllTargetMCs();
  InitializeAllAsmPrinters();
  InitializeAllAsmParsers();

  // set up the TargetOptions for the machine
  TargetOptions Options = InitTargetOptionsFromCodeGenFlags();

  if (ListSymbolsOnly) {
    listSymbols(Options);
    return 0;
  }

  if (ThinLTOMode.getNumOccurrences()) {
    if (ThinLTOMode.getNumOccurrences() > 1)
      report_fatal_error("You can't specify more than one -thinlto-action");
    thinlto::ThinLTOProcessing ThinLTOProcessor(Options);
    ThinLTOProcessor.run();
    return 0;
  }

  if (ThinLTO) {
    createCombinedFunctionIndex();
    return 0;
  }

  unsigned BaseArg = 0;

  LLVMContext Context;
  Context.setDiagnosticHandler(diagnosticHandlerWithContext, nullptr, true);

  LTOCodeGenerator CodeGen(Context);

  if (UseDiagnosticHandler)
    CodeGen.setDiagnosticHandler(handleDiagnostics, nullptr);

  CodeGen.setCodePICModel(RelocModel);

  CodeGen.setDebugInfo(LTO_DEBUG_MODEL_DWARF);
  CodeGen.setTargetOptions(Options);
  CodeGen.setShouldRestoreGlobalsLinkage(RestoreGlobalsLinkage);

  llvm::StringSet<llvm::MallocAllocator> DSOSymbolsSet;
  for (unsigned i = 0; i < DSOSymbols.size(); ++i)
    DSOSymbolsSet.insert(DSOSymbols[i]);

  std::vector<std::string> KeptDSOSyms;

  for (unsigned i = BaseArg; i < InputFilenames.size(); ++i) {
    CurrentActivity = "loading file '" + InputFilenames[i] + "'";
    ErrorOr<std::unique_ptr<LTOModule>> ModuleOrErr =
        LTOModule::createFromFile(Context, InputFilenames[i].c_str(), Options);
    std::unique_ptr<LTOModule> &Module = *ModuleOrErr;
    CurrentActivity = "";

    unsigned NumSyms = Module->getSymbolCount();
    for (unsigned I = 0; I < NumSyms; ++I) {
      StringRef Name = Module->getSymbolName(I);
      if (!DSOSymbolsSet.count(Name))
        continue;
      lto_symbol_attributes Attrs = Module->getSymbolAttributes(I);
      unsigned Scope = Attrs & LTO_SYMBOL_SCOPE_MASK;
      if (Scope != LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN)
        KeptDSOSyms.push_back(Name);
    }

    // We use the first input module as the destination module when
    // SetMergedModule is true.
    if (SetMergedModule && i == BaseArg) {
      // Transfer ownership to the code generator.
      CodeGen.setModule(std::move(Module));
    } else if (!CodeGen.addModule(Module.get())) {
      // Print a message here so that we know addModule() did not abort.
      errs() << argv[0] << ": error adding file '" << InputFilenames[i] << "'\n";
      return 1;
    }
  }

  // Add all the exported symbols to the table of symbols to preserve.
  for (unsigned i = 0; i < ExportedSymbols.size(); ++i)
    CodeGen.addMustPreserveSymbol(ExportedSymbols[i].c_str());

  // Add all the dso symbols to the table of symbols to expose.
  for (unsigned i = 0; i < KeptDSOSyms.size(); ++i)
    CodeGen.addMustPreserveSymbol(KeptDSOSyms[i].c_str());

  // Set cpu and attrs strings for the default target/subtarget.
  CodeGen.setCpu(MCPU.c_str());
//.........这里部分代码省略.........

/// gold informs us that all symbols have been read. At this point, we use
/// get_symbols to see if any of our definitions have been overridden by a
/// native object file. Then, perform optimization and codegen.
static ld_plugin_status allSymbolsReadHook(raw_fd_ostream *ApiFile) {
  if (Modules.empty())
    return LDPS_OK;

  if (unsigned NumOpts = options::extra.size())
    cl::ParseCommandLineOptions(NumOpts, &options::extra[0]);

  // If we are doing ThinLTO compilation, simply build the combined
  // module index/summary and emit it. We don't need to parse the modules
  // and link them in this case.
  if (options::thinlto) {
    ModuleSummaryIndex CombinedIndex;
    uint64_t NextModuleId = 0;
    for (claimed_file &F : Modules) {
      PluginInputFile InputFile(F.handle);

      std::unique_ptr<ModuleSummaryIndex> Index =
          getModuleSummaryIndexForFile(F, InputFile.file());

      // Skip files without a module summary.
      if (Index)
        CombinedIndex.mergeFrom(std::move(Index), ++NextModuleId);
    }

    std::error_code EC;
    raw_fd_ostream OS(output_name + ".thinlto.bc", EC,
                      sys::fs::OpenFlags::F_None);
    if (EC)
      message(LDPL_FATAL, "Unable to open %s.thinlto.bc for writing: %s",
              output_name.data(), EC.message().c_str());
    WriteIndexToFile(CombinedIndex, OS);
    OS.close();

    if (options::thinlto_index_only) {
      cleanup_hook();
      exit(0);
    }

    thinLTOBackends(ApiFile, CombinedIndex);
    return LDPS_OK;
  }

  LLVMContext Context;
  Context.setDiscardValueNames(options::DiscardValueNames);
  Context.enableDebugTypeODRUniquing(); // Merge debug info types.
  Context.setDiagnosticHandler(diagnosticHandlerForContext, nullptr, true);

  std::unique_ptr<Module> Combined(new Module("ld-temp.o", Context));
  IRMover L(*Combined);

  StringSet<> Internalize;
  StringSet<> Maybe;
  for (claimed_file &F : Modules) {
    PluginInputFile InputFile(F.handle);
    const void *View = getSymbolsAndView(F);
    if (!View)
      continue;
    if (linkInModule(Context, L, F, View, InputFile.file(), ApiFile,
                     Internalize, Maybe))
      message(LDPL_FATAL, "Failed to link module");
  }

  for (const auto &Name : Internalize) {
    GlobalValue *GV = Combined->getNamedValue(Name.first());
    if (GV)
      internalize(*GV);
  }

  for (const auto &Name : Maybe) {
    GlobalValue *GV = Combined->getNamedValue(Name.first());
    if (!GV)
      continue;
    GV->setLinkage(GlobalValue::LinkOnceODRLinkage);
    if (canBeOmittedFromSymbolTable(GV))
      internalize(*GV);
  }

  if (options::TheOutputType == options::OT_DISABLE)
    return LDPS_OK;

  if (options::TheOutputType != options::OT_NORMAL) {
    std::string path;
    if (options::TheOutputType == options::OT_BC_ONLY)
      path = output_name;
    else
      path = output_name + ".bc";
    saveBCFile(path, *Combined);
    if (options::TheOutputType == options::OT_BC_ONLY)
      return LDPS_OK;
  }

  CodeGen codeGen(std::move(Combined));
  codeGen.runAll();

  if (!options::extra_library_path.empty() &&
      set_extra_library_path(options::extra_library_path.c_str()) != LDPS_OK)
    message(LDPL_FATAL, "Unable to set the extra library path.");
//.........这里部分代码省略.........

/// gold informs us that all symbols have been read. At this point, we use
/// get_symbols to see if any of our definitions have been overridden by a
/// native object file. Then, perform optimization and codegen.
static ld_plugin_status allSymbolsReadHook(raw_fd_ostream *ApiFile) {
  if (Modules.empty())
    return LDPS_OK;

  LLVMContext Context;
  Context.setDiagnosticHandler(diagnosticHandler, nullptr, true);

  std::unique_ptr<Module> Combined(new Module("ld-temp.o", Context));
  Linker L(Combined.get());

  std::string DefaultTriple = sys::getDefaultTargetTriple();

  StringSet<> Internalize;
  StringSet<> Maybe;
  for (claimed_file &F : Modules) {
    ld_plugin_input_file File;
    if (get_input_file(F.handle, &File) != LDPS_OK)
      message(LDPL_FATAL, "Failed to get file information");
    std::unique_ptr<Module> M =
        getModuleForFile(Context, F, File, ApiFile, Internalize, Maybe);
    if (!options::triple.empty())
      M->setTargetTriple(options::triple.c_str());
    else if (M->getTargetTriple().empty()) {
      M->setTargetTriple(DefaultTriple);
    }

    if (L.linkInModule(M.get()))
      message(LDPL_FATAL, "Failed to link module");
    if (release_input_file(F.handle) != LDPS_OK)
      message(LDPL_FATAL, "Failed to release file information");
  }

  for (const auto &Name : Internalize) {
    GlobalValue *GV = Combined->getNamedValue(Name.first());
    if (GV)
      internalize(*GV);
  }

  for (const auto &Name : Maybe) {
    GlobalValue *GV = Combined->getNamedValue(Name.first());
    if (!GV)
      continue;
    GV->setLinkage(GlobalValue::LinkOnceODRLinkage);
    if (canBeOmittedFromSymbolTable(GV))
      internalize(*GV);
  }

  // @LOCALMOD-BEGIN
  // Perform symbol wrapping.
  unsigned num_wrapped;
  if ((*get_num_wrapped)(&num_wrapped) != LDPS_OK) {
    (*message)(LDPL_ERROR, "Unable to get the number of wrapped symbols.");
    return LDPS_ERR;
  }
  for (unsigned i = 0; i < num_wrapped; ++i) {
    const char *sym;
    if ((*get_wrapped)(i, &sym) != LDPS_OK) {
      (*message)(LDPL_ERROR, "Unable to wrap symbol %u/%u.", i, num_wrapped);
      return LDPS_ERR;
    }
    wrapSymbol(Combined.get(), sym);
  }
  // @LOCALMOD-END

  if (options::TheOutputType == options::OT_DISABLE)
    return LDPS_OK;

  if (options::TheOutputType != options::OT_NORMAL) {
    std::string path;
    if (options::TheOutputType == options::OT_BC_ONLY)
      path = output_name;
    else
      path = output_name + ".bc";
    saveBCFile(path, *L.getModule());
    if (options::TheOutputType == options::OT_BC_ONLY)
      return LDPS_OK;
  }

  codegen(*L.getModule());

  if (!options::extra_library_path.empty() &&
      set_extra_library_path(options::extra_library_path.c_str()) != LDPS_OK)
    message(LDPL_FATAL, "Unable to set the extra library path.");

  return LDPS_OK;
}