示例#1
0
文件: h2j.cpp 项目: 5tivi/julia
int main()
{
    CompilerInstance ci;
    ci.createDiagnostics(0,NULL);

    TargetOptions to;
    to.Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), to);
    ci.setTarget(pti);

    ci.getHeaderSearchOpts().AddPath(
        StringRef("../usr/lib/clang/3.0/include"), frontend::Angled, false, false, false
    );
    ci.getHeaderSearchOpts().AddPath(
        StringRef("support"), frontend::Quoted, true, false, false
    );

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor();
    PrintFunctionsConsumer *astConsumer = new PrintFunctionsConsumer();
    ci.setASTConsumer(astConsumer);

    ci.createASTContext();
    const FileEntry *pFile = ci.getFileManager().getFile("julia.h");
    ci.getSourceManager().createMainFileID(pFile);
    ci.getDiagnosticClient().BeginSourceFile(ci.getLangOpts(), &ci.getPreprocessor());
    clang::ParseAST(ci.getPreprocessor(), astConsumer, ci.getASTContext());
    ci.getDiagnosticClient().EndSourceFile();

    return 0;
}
示例#2
0
/******************************************************************************
 * This tutorial just shows off the steps needed to build up to a Preprocessor
 * object. Note that the order below is important.
 *****************************************************************************/
int main()
{
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;

    CompilerInstance ci;
    DiagnosticOptions diagnosticOptions;
    TextDiagnosticPrinter *pTextDiagnosticPrinter =
        new TextDiagnosticPrinter(
            llvm::outs(),
            &diagnosticOptions,
            true);

    ci.createDiagnostics(pTextDiagnosticPrinter);

    llvm::IntrusiveRefCntPtr<TargetOptions> pto( new TargetOptions());
    pto->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto.getPtr());
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor();
    return 0;
}
int main()
{
  using clang::CompilerInstance;
  using clang::TargetOptions;
  using clang::TargetInfo;
  using clang::FileEntry;

  CompilerInstance ci;
  ci.createDiagnostics(0,NULL);

  TargetOptions to;
  to.Triple = llvm::sys::getDefaultTargetTriple();
  TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), to);
  ci.setTarget(pti);

  ci.createFileManager();
  ci.createSourceManager(ci.getFileManager());
  ci.createPreprocessor();
  ci.getPreprocessorOpts().UsePredefines = false;
  MyASTConsumer *astConsumer = new MyASTConsumer();
  ci.setASTConsumer(astConsumer);

  ci.createASTContext();

  const FileEntry *pFile = ci.getFileManager().getFile("test.c");
  ci.getSourceManager().createMainFileID(pFile);
  ci.getDiagnosticClient().BeginSourceFile(ci.getLangOpts(),
                                           &ci.getPreprocessor());
  clang::ParseAST(ci.getPreprocessor(), astConsumer, ci.getASTContext());
  ci.getDiagnosticClient().EndSourceFile();

  return 0;
}
示例#4
0
文件: XCTMT.cpp 项目: PodBuilder/LLVM
void XCTMigrator::handleInvocation(CompilerInstance &CI) {
  PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
  if (PPOpts.ImplicitPCHInclude.empty())
    return;

  // Check if the PCH file includes any of the SenTesting headers, in which case
  // modify the invocation and have it include the prefix header directly, so
  // we can migrate it.
  // Including a SenTesting header in the PCH is uncommon, this allows to use a
  // simpler logic during migration (ignoring the PCH file), while enabling
  // migration when the PCH does include such a header.
  if (!CI.hasFileManager())
    CI.createFileManager();
  XCTSenTestingPCHCheck PCHCheck;
  ASTReader::readASTFileControlBlock(PPOpts.ImplicitPCHInclude,
                                     CI.getFileManager(), PCHCheck);
  if (PCHCheck.ContainsSenHeader) {
    std::string PrefixHeader =
        ASTReader::getOriginalSourceFile(PPOpts.ImplicitPCHInclude,
                                         CI.getFileManager(),
                                         CI.getDiagnostics());
    if (!PrefixHeader.empty())
      PPOpts.Includes.insert(PPOpts.Includes.begin(), PrefixHeader);
    PPOpts.ImplicitPCHInclude.clear();
  }
}
int main(int argc, char *argv[]) {
  if (argc != 2) {
    llvm::errs() << "Usage: rewritersample <filename>\n";
    return 1;
  }

  // CompilerInstance will hold the instance of the Clang compiler for us,
  // managing the various objects needed to run the compiler.
  CompilerInstance TheCompInst;
  TheCompInst.createDiagnostics();

  LangOptions &lo = TheCompInst.getLangOpts();
  lo.CPlusPlus = 1;

  // Initialize target info with the default triple for our platform.
  auto TO = std::make_shared<TargetOptions>();
  TO->Triple = llvm::sys::getDefaultTargetTriple();
  TargetInfo *TI =
      TargetInfo::CreateTargetInfo(TheCompInst.getDiagnostics(), TO);
  TheCompInst.setTarget(TI);

  TheCompInst.createFileManager();
  FileManager &FileMgr = TheCompInst.getFileManager();
  TheCompInst.createSourceManager(FileMgr);
  SourceManager &SourceMgr = TheCompInst.getSourceManager();
  TheCompInst.createPreprocessor(TU_Module);
  TheCompInst.createASTContext();

  // A Rewriter helps us manage the code rewriting task.
  Rewriter TheRewriter;
  TheRewriter.setSourceMgr(SourceMgr, TheCompInst.getLangOpts());

  // Set the main file handled by the source manager to the input file.
  const FileEntry *FileIn = FileMgr.getFile(argv[1]);
  SourceMgr.setMainFileID(
      SourceMgr.createFileID(FileIn, SourceLocation(), SrcMgr::C_User));
  TheCompInst.getDiagnosticClient().BeginSourceFile(
      TheCompInst.getLangOpts(), &TheCompInst.getPreprocessor());

  // Create an AST consumer instance which is going to get called by
  // ParseAST.
  MyASTConsumer TheConsumer(TheRewriter);

  // Parse the file to AST, registering our consumer as the AST consumer.
  ParseAST(TheCompInst.getPreprocessor(), &TheConsumer,
           TheCompInst.getASTContext());

  // At this point the rewriter's buffer should be full with the rewritten
  // file contents.
  const RewriteBuffer *RewriteBuf =
      TheRewriter.getRewriteBufferFor(SourceMgr.getMainFileID());
  llvm::outs() << std::string(RewriteBuf->begin(), RewriteBuf->end());

  return 0;
}
示例#6
0
int main(int argc, char *argv[])
{
    if (argc != 2) {
        llvm::errs() << "Usage: rewritersample <filename>\n";
        return 1;
    }

    // CompilerInstance will hold the instance of the Clang compiler for us,
    // managing the various objects needed to run the compiler.
    CompilerInstance ci;
    ci.createDiagnostics(0, 0);

    // Initialize target info with the default triple for our platform.
    TargetOptions TO;
    TO.Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *TI = TargetInfo::CreateTargetInfo(
        ci.getDiagnostics(), TO);
    ci.setTarget(TI);

    ci.createFileManager();
    FileManager &fm = ci.getFileManager();
    ci.createSourceManager(fm);
    SourceManager &SourceMgr = ci.getSourceManager();
    ci.createPreprocessor();
    ci.createASTContext();

    // A Rewriter helps us manage the code rewriting task.
    Rewriter rw;
    rw.setSourceMgr(SourceMgr, ci.getLangOpts());

    // Set the main file handled by the source manager to the input file.
    const FileEntry *fi = fm.getFile(argv[1]);
    SourceMgr.createMainFileID(fi);
    ci.getDiagnosticClient().BeginSourceFile(
        ci.getLangOpts(),
        &ci.getPreprocessor());

    // Create an AST consumer instance which is going to get called by
    // ParseAST.
    MyASTConsumer astc(rw);

    // Parse the file to AST, registering our consumer as the AST consumer.
    ParseAST(ci.getPreprocessor(), &astc,
             ci.getASTContext());

    // At this point the rewriter's buffer should be full with the rewritten
    // file contents.
    const RewriteBuffer *rwb =
        rw.getRewriteBufferFor(SourceMgr.getMainFileID());
    llvm::outs() << string(rwb->begin(), rwb->end());

    return 0;
}
示例#7
0
int main(int argc, char *argv[]) {
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::FileEntry;
    using clang::ASTConsumer;
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;

    CompilerInstance CI;
    DiagnosticOptions diagnosticOptions;
    TextDiagnosticPrinter *pTextDiagnosticPrinter =
        new TextDiagnosticPrinter(
        llvm::outs(), diagnosticOptions, true);
    CI.createDiagnostics(0, NULL, pTextDiagnosticPrinter);

    TargetOptions targetOptions;
    targetOptions.Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pTargetInfo = TargetInfo::CreateTargetInfo(
                                  CI.getDiagnostics(), targetOptions);
    CI.setTarget(pTargetInfo);

    CI.createFileManager();
    CI.createSourceManager(CI.getFileManager());
    CI.createPreprocessor();
    CI.getPreprocessorOpts().UsePredefines = false;
    ASTConsumer *astConsumer = new ASTConsumer();
    CI.setASTConsumer(astConsumer);

    CI.createASTContext();
    CI.createSema(clang::TU_Complete, NULL);

    const FileEntry *pFile = CI.getFileManager().getFile(argv[1]);
    CI.getSourceManager().createMainFileID(pFile);

    CI.getASTContext().BuiltinInfo.InitializeBuiltins(
        CI.getPreprocessor().getIdentifierTable(), CI.getLangOpts());

    CI.getDiagnosticClient().BeginSourceFile(
        CI.getLangOpts(), &(CI.getPreprocessor()));
    clang::ParseAST(CI.getSema());
    CI.getDiagnosticClient().EndSourceFile();

    return 0;
}
示例#8
0
void checkVariables(string filename, vector<Issue>& lineIssues){
  // CompilerInstance will hold the instance of the Clang compiler for us,
  // managing the various objects needed to run the compiler.
  CompilerInstance TheCompInst;
  TheCompInst.createDiagnostics();

  CompilerInvocation TheCompInv;

  LangOptions &lo = TheCompInst.getLangOpts();
  lo.CPlusPlus = 1;
  lo.Bool = 1;
  lo.WChar = 1;
  lo.NoBuiltin = 0;

  // Initialize target info with the default triple for our platform.
  auto TO = std::make_shared<TargetOptions>();
  TO->Triple = llvm::sys::getDefaultTargetTriple();
  TargetInfo *TI =
      TargetInfo::CreateTargetInfo(TheCompInst.getDiagnostics(), TO);
  TheCompInst.setTarget(TI);

  TheCompInst.createFileManager();
  FileManager &FileMgr = TheCompInst.getFileManager();
  TheCompInst.createSourceManager(FileMgr);
  SourceManager &SourceMgr = TheCompInst.getSourceManager();
  TheCompInst.createPreprocessor(TU_Module);

  Preprocessor& pp = TheCompInst.getPreprocessor();

  pp.getBuiltinInfo().InitializeBuiltins(pp.getIdentifierTable(), lo);
                                          //pp.getLangOpts().NoBuiltin);

  TheCompInst.createASTContext();

  // Set the main file handled by the source manager to the input file.
  const FileEntry *FileIn = FileMgr.getFile(filename);
  SourceMgr.setMainFileID(
      SourceMgr.createFileID(FileIn, SourceLocation(), SrcMgr::C_User));
  TheCompInst.getDiagnosticClient().BeginSourceFile(
      TheCompInst.getLangOpts(), &TheCompInst.getPreprocessor());

  MyASTConsumer consm{lineIssues, SourceMgr};

  ParseAST(TheCompInst.getPreprocessor(), &consm, TheCompInst.getASTContext());
}
示例#9
0
int main()
{
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::FileEntry;
    using clang::Token;
    using clang::ASTContext;
    using clang::ASTConsumer;
    using clang::Parser;
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;

    CompilerInstance ci;
    DiagnosticOptions diagnosticOptions;
    ci.createDiagnostics();

    llvm::IntrusiveRefCntPtr<TargetOptions> pto( new TargetOptions());
    pto->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto.getPtr());
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
#ifdef CLANG_3_5
    ci.createPreprocessor(clang::TU_Complete);
#else
    ci.createPreprocessor(); 
#endif
    ci.getPreprocessorOpts().UsePredefines = false;
    ASTConsumer *astConsumer = new ASTConsumer();
    ci.setASTConsumer(astConsumer);

    ci.createASTContext();
    ci.createSema(clang::TU_Complete, NULL);

	  const FileEntry *pFile = ci.getFileManager().getFile("test.c");
    ci.getSourceManager().createMainFileID(pFile);
    clang::ParseAST(ci.getSema());
    ci.getASTContext().Idents.PrintStats();

    return 0;
}
int
main(int argc, const char *argv[])
{
    struct stat sb;

    if (argc != 2)
    {
        std::cout << "Usage: ./PrintFunctionInfo <filename>" << std::endl;
        exit(1);
    }

    if (stat(argv[1], &sb) == -1)
    {
        perror(argv[1]);
        exit(EXIT_FAILURE);
    }

    CompilerInstance ci;
    ci.createDiagnostics(0,NULL);

    TargetOptions to;
    to.Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), to);
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor();
    ci.getPreprocessorOpts().UsePredefines = false;
    FunctionLocConsumer *astConsumer = new FunctionLocConsumer();
    ci.setASTConsumer(astConsumer);

    ci.createASTContext();

	const FileEntry *pFile = ci.getFileManager().getFile(argv[1]);
    ci.getSourceManager().createMainFileID(pFile);
    ci.getDiagnosticClient().BeginSourceFile(ci.getLangOpts(),
                                             &ci.getPreprocessor());
    ParseAST(ci.getPreprocessor(), astConsumer, ci.getASTContext());
    ci.getDiagnosticClient().EndSourceFile();

    return 0;
}
示例#11
0
int main()
{
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::FileEntry;
    using clang::Token;
    using clang::ASTContext;
    using clang::ASTConsumer;
    using clang::Parser;

    CompilerInstance ci;
    ci.createDiagnostics(0,NULL);

    TargetOptions to;
    to.Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), to);
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor();
    ci.getPreprocessorOpts().UsePredefines = false;
    ASTConsumer *astConsumer = new ASTConsumer();
    ci.setASTConsumer(astConsumer);

    ci.createASTContext();
    ci.createSema(clang::TU_Complete, NULL);

	const FileEntry *pFile = ci.getFileManager().getFile("test.c");
    ci.getSourceManager().createMainFileID(pFile);
    ci.getPreprocessor().EnterMainSourceFile();
    ci.getDiagnosticClient().BeginSourceFile(ci.getLangOpts(),
                                             &ci.getPreprocessor());
    Parser parser(ci.getPreprocessor(), ci.getSema(), false /*skipFunctionBodies*/);
    parser.ParseTranslationUnit();
    ci.getDiagnosticClient().EndSourceFile();
    ci.getASTContext().Idents.PrintStats();

    return 0;
}
示例#12
0
int main()
{
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::FileEntry;
    using clang::Token;
    using clang::ASTContext;
    using clang::ASTConsumer;
    using clang::Parser;
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;

    CompilerInstance ci;
    DiagnosticOptions diagnosticOptions;
    ci.createDiagnostics();

    std::shared_ptr<clang::TargetOptions> pto = std::make_shared<clang::TargetOptions>();
    pto->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto);
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor(clang::TU_Complete);
    ci.getPreprocessorOpts().UsePredefines = false;

    ci.setASTConsumer(llvm::make_unique<ASTConsumer>());

    ci.createASTContext();
    ci.createSema(clang::TU_Complete, NULL);

    const FileEntry *pFile = ci.getFileManager().getFile("test.c");
    ci.getSourceManager().setMainFileID( ci.getSourceManager().createFileID( pFile, clang::SourceLocation(), clang::SrcMgr::C_User));
    clang::ParseAST(ci.getSema());
    ci.getASTContext().Idents.PrintStats();

    return 0;
}
/// \brief Compile a module file for the given module, using the options 
/// provided by the importing compiler instance.
static void compileModule(CompilerInstance &ImportingInstance,
                          SourceLocation ImportLoc,
                          Module *Module,
                          StringRef ModuleFileName) {
  llvm::LockFileManager Locked(ModuleFileName);
  switch (Locked) {
  case llvm::LockFileManager::LFS_Error:
    return;

  case llvm::LockFileManager::LFS_Owned:
    // We're responsible for building the module ourselves. Do so below.
    break;

  case llvm::LockFileManager::LFS_Shared:
    // Someone else is responsible for building the module. Wait for them to
    // finish.
    Locked.waitForUnlock();
    return;
  }

  ModuleMap &ModMap 
    = ImportingInstance.getPreprocessor().getHeaderSearchInfo().getModuleMap();
    
  // Construct a compiler invocation for creating this module.
  IntrusiveRefCntPtr<CompilerInvocation> Invocation
    (new CompilerInvocation(ImportingInstance.getInvocation()));

  PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
  
  // For any options that aren't intended to affect how a module is built,
  // reset them to their default values.
  Invocation->getLangOpts()->resetNonModularOptions();
  PPOpts.resetNonModularOptions();

  // Note the name of the module we're building.
  Invocation->getLangOpts()->CurrentModule = Module->getTopLevelModuleName();

  // Make sure that the failed-module structure has been allocated in
  // the importing instance, and propagate the pointer to the newly-created
  // instance.
  PreprocessorOptions &ImportingPPOpts
    = ImportingInstance.getInvocation().getPreprocessorOpts();
  if (!ImportingPPOpts.FailedModules)
    ImportingPPOpts.FailedModules = new PreprocessorOptions::FailedModulesSet;
  PPOpts.FailedModules = ImportingPPOpts.FailedModules;

  // If there is a module map file, build the module using the module map.
  // Set up the inputs/outputs so that we build the module from its umbrella
  // header.
  FrontendOptions &FrontendOpts = Invocation->getFrontendOpts();
  FrontendOpts.OutputFile = ModuleFileName.str();
  FrontendOpts.DisableFree = false;
  FrontendOpts.Inputs.clear();
  InputKind IK = getSourceInputKindFromOptions(*Invocation->getLangOpts());

  // Get or create the module map that we'll use to build this module.
  SmallString<128> TempModuleMapFileName;
  if (const FileEntry *ModuleMapFile
                                  = ModMap.getContainingModuleMapFile(Module)) {
    // Use the module map where this module resides.
    FrontendOpts.Inputs.push_back(FrontendInputFile(ModuleMapFile->getName(), 
                                                    IK));
  } else {
    // Create a temporary module map file.
    TempModuleMapFileName = Module->Name;
    TempModuleMapFileName += "-%%%%%%%%.map";
    int FD;
    if (llvm::sys::fs::unique_file(TempModuleMapFileName.str(), FD, 
                                   TempModuleMapFileName,
                                   /*makeAbsolute=*/true)
          != llvm::errc::success) {
      ImportingInstance.getDiagnostics().Report(diag::err_module_map_temp_file)
        << TempModuleMapFileName;
      return;
    }
    // Print the module map to this file.
    llvm::raw_fd_ostream OS(FD, /*shouldClose=*/true);
    Module->print(OS);
    FrontendOpts.Inputs.push_back(
      FrontendInputFile(TempModuleMapFileName.str().str(), IK));
  }

  // Don't free the remapped file buffers; they are owned by our caller.
  PPOpts.RetainRemappedFileBuffers = true;
    
  Invocation->getDiagnosticOpts().VerifyDiagnostics = 0;
  assert(ImportingInstance.getInvocation().getModuleHash() ==
         Invocation->getModuleHash() && "Module hash mismatch!");
  
  // Construct a compiler instance that will be used to actually create the
  // module.
  CompilerInstance Instance;
  Instance.setInvocation(&*Invocation);
  Instance.createDiagnostics(/*argc=*/0, /*argv=*/0,
                             &ImportingInstance.getDiagnosticClient(),
                             /*ShouldOwnClient=*/true,
                             /*ShouldCloneClient=*/true);

  // Note that this module is part of the module build stack, so that we
  // can detect cycles in the module graph.
  Instance.createFileManager(); // FIXME: Adopt file manager from importer?
  Instance.createSourceManager(Instance.getFileManager());
  SourceManager &SourceMgr = Instance.getSourceManager();
  SourceMgr.setModuleBuildStack(
    ImportingInstance.getSourceManager().getModuleBuildStack());
  SourceMgr.pushModuleBuildStack(Module->getTopLevelModuleName(),
    FullSourceLoc(ImportLoc, ImportingInstance.getSourceManager()));


  // Construct a module-generating action.
  GenerateModuleAction CreateModuleAction;
  
  // Execute the action to actually build the module in-place. Use a separate
  // thread so that we get a stack large enough.
  const unsigned ThreadStackSize = 8 << 20;
  llvm::CrashRecoveryContext CRC;
  CompileModuleMapData Data = { Instance, CreateModuleAction };
  CRC.RunSafelyOnThread(&doCompileMapModule, &Data, ThreadStackSize);
  
  // Delete the temporary module map file.
  // FIXME: Even though we're executing under crash protection, it would still
  // be nice to do this with RemoveFileOnSignal when we can. However, that
  // doesn't make sense for all clients, so clean this up manually.
  Instance.clearOutputFiles(/*EraseFiles=*/true);
  if (!TempModuleMapFileName.empty())
    llvm::sys::Path(TempModuleMapFileName).eraseFromDisk();
}
示例#14
0
bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
                                     const FrontendInputFile &Input) {
  assert(!Instance && "Already processing a source file!");
  assert(!Input.isEmpty() && "Unexpected empty filename!");
  setCurrentInput(Input);
  setCompilerInstance(&CI);

  StringRef InputFile = Input.getFile();
  bool HasBegunSourceFile = false;
  if (!BeginInvocation(CI))
    goto failure;

  // AST files follow a very different path, since they share objects via the
  // AST unit.
  if (Input.getKind() == IK_AST) {
    assert(!usesPreprocessorOnly() &&
           "Attempt to pass AST file to preprocessor only action!");
    assert(hasASTFileSupport() &&
           "This action does not have AST file support!");

    IntrusiveRefCntPtr<DiagnosticsEngine> Diags(&CI.getDiagnostics());

    std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromASTFile(
        InputFile, CI.getPCHContainerReader(), Diags, CI.getFileSystemOpts(),
        CI.getCodeGenOpts().DebugTypeExtRefs);

    if (!AST)
      goto failure;

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), nullptr);
    HasBegunSourceFile = true;

    // Set the shared objects, these are reset when we finish processing the
    // file, otherwise the CompilerInstance will happily destroy them.
    CI.setFileManager(&AST->getFileManager());
    CI.setSourceManager(&AST->getSourceManager());
    CI.setPreprocessor(AST->getPreprocessorPtr());
    CI.setASTContext(&AST->getASTContext());

    setCurrentInput(Input, std::move(AST));

    // Initialize the action.
    if (!BeginSourceFileAction(CI, InputFile))
      goto failure;

    // Create the AST consumer.
    CI.setASTConsumer(CreateWrappedASTConsumer(CI, InputFile));
    if (!CI.hasASTConsumer())
      goto failure;

    return true;
  }

  if (!CI.hasVirtualFileSystem()) {
    if (IntrusiveRefCntPtr<vfs::FileSystem> VFS =
          createVFSFromCompilerInvocation(CI.getInvocation(),
                                          CI.getDiagnostics()))
      CI.setVirtualFileSystem(VFS);
    else
      goto failure;
  }

  // Set up the file and source managers, if needed.
  if (!CI.hasFileManager())
    CI.createFileManager();
  if (!CI.hasSourceManager())
    CI.createSourceManager(CI.getFileManager());

  // IR files bypass the rest of initialization.
  if (Input.getKind() == IK_LLVM_IR) {
    assert(hasIRSupport() &&
           "This action does not have IR file support!");

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), nullptr);
    HasBegunSourceFile = true;

    // Initialize the action.
    if (!BeginSourceFileAction(CI, InputFile))
      goto failure;

    // Initialize the main file entry.
    if (!CI.InitializeSourceManager(CurrentInput))
      goto failure;

    return true;
  }

  // If the implicit PCH include is actually a directory, rather than
  // a single file, search for a suitable PCH file in that directory.
  if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
    FileManager &FileMgr = CI.getFileManager();
    PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
    StringRef PCHInclude = PPOpts.ImplicitPCHInclude;
    std::string SpecificModuleCachePath = CI.getSpecificModuleCachePath();
    if (const DirectoryEntry *PCHDir = FileMgr.getDirectory(PCHInclude)) {
      std::error_code EC;
      SmallString<128> DirNative;
      llvm::sys::path::native(PCHDir->getName(), DirNative);
      bool Found = false;
      vfs::FileSystem &FS = *FileMgr.getVirtualFileSystem();
      for (vfs::directory_iterator Dir = FS.dir_begin(DirNative, EC), DirEnd;
           Dir != DirEnd && !EC; Dir.increment(EC)) {
        // Check whether this is an acceptable AST file.
        if (ASTReader::isAcceptableASTFile(
                Dir->getName(), FileMgr, CI.getPCHContainerReader(),
                CI.getLangOpts(), CI.getTargetOpts(), CI.getPreprocessorOpts(),
                SpecificModuleCachePath)) {
          PPOpts.ImplicitPCHInclude = Dir->getName();
          Found = true;
          break;
        }
      }

      if (!Found) {
        CI.getDiagnostics().Report(diag::err_fe_no_pch_in_dir) << PCHInclude;
        goto failure;
      }
    }
  }

  // Set up the preprocessor if needed. When parsing model files the
  // preprocessor of the original source is reused.
  if (!isModelParsingAction())
    CI.createPreprocessor(getTranslationUnitKind());

  // Inform the diagnostic client we are processing a source file.
  CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(),
                                           &CI.getPreprocessor());
  HasBegunSourceFile = true;

  // Initialize the action.
  if (!BeginSourceFileAction(CI, InputFile))
    goto failure;

  // Initialize the main file entry. It is important that this occurs after
  // BeginSourceFileAction, which may change CurrentInput during module builds.
  if (!CI.InitializeSourceManager(CurrentInput))
    goto failure;

  // Create the AST context and consumer unless this is a preprocessor only
  // action.
  if (!usesPreprocessorOnly()) {
    // Parsing a model file should reuse the existing ASTContext.
    if (!isModelParsingAction())
      CI.createASTContext();

    std::unique_ptr<ASTConsumer> Consumer =
        CreateWrappedASTConsumer(CI, InputFile);
    if (!Consumer)
      goto failure;

    // FIXME: should not overwrite ASTMutationListener when parsing model files?
    if (!isModelParsingAction())
      CI.getASTContext().setASTMutationListener(Consumer->GetASTMutationListener());

    if (!CI.getPreprocessorOpts().ChainedIncludes.empty()) {
      // Convert headers to PCH and chain them.
      IntrusiveRefCntPtr<ExternalSemaSource> source, FinalReader;
      source = createChainedIncludesSource(CI, FinalReader);
      if (!source)
        goto failure;
      CI.setModuleManager(static_cast<ASTReader *>(FinalReader.get()));
      CI.getASTContext().setExternalSource(source);
    } else if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
      // Use PCH.
      assert(hasPCHSupport() && "This action does not have PCH support!");
      ASTDeserializationListener *DeserialListener =
          Consumer->GetASTDeserializationListener();
      bool DeleteDeserialListener = false;
      if (CI.getPreprocessorOpts().DumpDeserializedPCHDecls) {
        DeserialListener = new DeserializedDeclsDumper(DeserialListener,
                                                       DeleteDeserialListener);
        DeleteDeserialListener = true;
      }
      if (!CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn.empty()) {
        DeserialListener = new DeserializedDeclsChecker(
            CI.getASTContext(),
            CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn,
            DeserialListener, DeleteDeserialListener);
        DeleteDeserialListener = true;
      }
      CI.createPCHExternalASTSource(
          CI.getPreprocessorOpts().ImplicitPCHInclude,
          CI.getPreprocessorOpts().DisablePCHValidation,
          CI.getPreprocessorOpts().AllowPCHWithCompilerErrors, DeserialListener,
          DeleteDeserialListener);
      if (!CI.getASTContext().getExternalSource())
        goto failure;
    }

    CI.setASTConsumer(std::move(Consumer));
    if (!CI.hasASTConsumer())
      goto failure;
  }

  // Initialize built-in info as long as we aren't using an external AST
  // source.
  if (!CI.hasASTContext() || !CI.getASTContext().getExternalSource()) {
    Preprocessor &PP = CI.getPreprocessor();

    // If modules are enabled, create the module manager before creating
    // any builtins, so that all declarations know that they might be
    // extended by an external source.
    if (CI.getLangOpts().Modules)
      CI.createModuleManager();

    PP.getBuiltinInfo().initializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOpts());
  } else {
    // FIXME: If this is a problem, recover from it by creating a multiplex
    // source.
    assert((!CI.getLangOpts().Modules || CI.getModuleManager()) &&
           "modules enabled but created an external source that "
           "doesn't support modules");
  }

  // If we were asked to load any module map files, do so now.
  for (const auto &Filename : CI.getFrontendOpts().ModuleMapFiles) {
    if (auto *File = CI.getFileManager().getFile(Filename))
      CI.getPreprocessor().getHeaderSearchInfo().loadModuleMapFile(
          File, /*IsSystem*/false);
    else
      CI.getDiagnostics().Report(diag::err_module_map_not_found) << Filename;
  }

  // If we were asked to load any module files, do so now.
  for (const auto &ModuleFile : CI.getFrontendOpts().ModuleFiles)
    if (!CI.loadModuleFile(ModuleFile))
      goto failure;

  // If there is a layout overrides file, attach an external AST source that
  // provides the layouts from that file.
  if (!CI.getFrontendOpts().OverrideRecordLayoutsFile.empty() && 
      CI.hasASTContext() && !CI.getASTContext().getExternalSource()) {
    IntrusiveRefCntPtr<ExternalASTSource> 
      Override(new LayoutOverrideSource(
                     CI.getFrontendOpts().OverrideRecordLayoutsFile));
    CI.getASTContext().setExternalSource(Override);
  }

  return true;

  // If we failed, reset state since the client will not end up calling the
  // matching EndSourceFile().
  failure:
  if (isCurrentFileAST()) {
    CI.setASTContext(nullptr);
    CI.setPreprocessor(nullptr);
    CI.setSourceManager(nullptr);
    CI.setFileManager(nullptr);
  }

  if (HasBegunSourceFile)
    CI.getDiagnosticClient().EndSourceFile();
  CI.clearOutputFiles(/*EraseFiles=*/true);
  setCurrentInput(FrontendInputFile());
  setCompilerInstance(nullptr);
  return false;
}
示例#15
0
  CompilerInstance* CIFactory::createCI(llvm::MemoryBuffer* buffer,
                                        int argc,
                                        const char* const *argv,
                                        const char* llvmdir) {
    // Create an instance builder, passing the llvmdir and arguments.
    //
    //  Initialize the llvm library.
    llvm::InitializeNativeTarget();
    llvm::InitializeAllAsmPrinters();
    llvm::sys::Path resource_path;
    if (llvmdir) {
      resource_path = llvmdir;
      resource_path.appendComponent("lib");
      resource_path.appendComponent("clang");
      resource_path.appendComponent(CLANG_VERSION_STRING);
    } else {
      // FIXME: The first arg really does need to be argv[0] on FreeBSD.
      //
      // Note: The second arg is not used for Apple, FreeBSD, Linux,
      //       or cygwin, and can only be used on systems which support
      //       the use of dladdr().
      //
      // Note: On linux and cygwin this uses /proc/self/exe to find the path.
      //
      // Note: On Apple it uses _NSGetExecutablePath().
      //
      // Note: On FreeBSD it uses getprogpath().
      //
      // Note: Otherwise it uses dladdr().
      //
      resource_path
        = CompilerInvocation::GetResourcesPath("cling",
                                       (void*)(intptr_t) locate_cling_executable
                                               );
    }
    if (!resource_path.canRead()) {
      llvm::errs()
        << "ERROR in cling::CIFactory::createCI():\n  resource directory "
        << resource_path.str() << " not found!\n";
      resource_path = "";
    }

    //______________________________________
    DiagnosticOptions* DefaultDiagnosticOptions = new DiagnosticOptions();
    DefaultDiagnosticOptions->ShowColors = llvm::sys::Process::StandardErrHasColors() ? 1 : 0;
    TextDiagnosticPrinter* DiagnosticPrinter
      = new TextDiagnosticPrinter(llvm::errs(), DefaultDiagnosticOptions);
    llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> DiagIDs(new DiagnosticIDs());
    DiagnosticsEngine* Diagnostics
      = new DiagnosticsEngine(DiagIDs, DefaultDiagnosticOptions,
                              DiagnosticPrinter, /*Owns it*/ true); // LEAKS!

    std::vector<const char*> argvCompile(argv, argv + argc);
    // We do C++ by default; append right after argv[0] name
    // Only insert it if there is no other "-x":
    bool haveMinusX = false;
    for (const char* const* iarg = argv; !haveMinusX && iarg < argv + argc;
         ++iarg) {
      haveMinusX = !strcmp(*iarg, "-x");
    }
    if (!haveMinusX) {
      argvCompile.insert(argvCompile.begin() + 1,"-x");
      argvCompile.insert(argvCompile.begin() + 2, "c++");
    }
    argvCompile.push_back("-c");
    argvCompile.push_back("-");

    clang::driver::Driver Driver(argv[0], llvm::sys::getDefaultTargetTriple(),
                                 "cling.out",
                                 *Diagnostics);
    //Driver.setWarnMissingInput(false);
    Driver.setCheckInputsExist(false); // think foo.C(12)
    llvm::ArrayRef<const char*>RF(&(argvCompile[0]), argvCompile.size());
    llvm::OwningPtr<clang::driver::Compilation>
      Compilation(Driver.BuildCompilation(RF));
    const clang::driver::ArgStringList* CC1Args
      = GetCC1Arguments(Diagnostics, Compilation.get());
    if (CC1Args == NULL) {
      return 0;
    }
    clang::CompilerInvocation*
      Invocation = new clang::CompilerInvocation;
    clang::CompilerInvocation::CreateFromArgs(*Invocation, CC1Args->data() + 1,
                                              CC1Args->data() + CC1Args->size(),
                                              *Diagnostics);
    Invocation->getFrontendOpts().DisableFree = true;

    if (Invocation->getHeaderSearchOpts().UseBuiltinIncludes &&
        !resource_path.empty()) {
      // Update ResourceDir
      // header search opts' entry for resource_path/include isn't
      // updated by providing a new resource path; update it manually.
      clang::HeaderSearchOptions& Opts = Invocation->getHeaderSearchOpts();
      llvm::sys::Path oldResInc(Opts.ResourceDir);
      oldResInc.appendComponent("include");
      llvm::sys::Path newResInc(resource_path);
      newResInc.appendComponent("include");
      bool foundOldResInc = false;
      for (unsigned i = 0, e = Opts.UserEntries.size();
           !foundOldResInc && i != e; ++i) {
        HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
        if (!E.IsFramework && E.Group == clang::frontend::System
            && E.IgnoreSysRoot && oldResInc.str() == E.Path) {
          E.Path = newResInc.str();
          foundOldResInc = true;
        }
      }

      Opts.ResourceDir = resource_path.str();
    }

    // Create and setup a compiler instance.
    CompilerInstance* CI = new CompilerInstance();
    CI->setInvocation(Invocation);

    CI->createDiagnostics(DiagnosticPrinter, /*ShouldOwnClient=*/ false,
                          /*ShouldCloneClient=*/ false);
    {
      //
      //  Buffer the error messages while we process
      //  the compiler options.
      //

      // Set the language options, which cling needs
      SetClingCustomLangOpts(CI->getLangOpts());

      CI->getInvocation().getPreprocessorOpts().addMacroDef("__CLING__");
      if (CI->getLangOpts().CPlusPlus11 == 1) {
        // http://llvm.org/bugs/show_bug.cgi?id=13530
        CI->getInvocation().getPreprocessorOpts()
          .addMacroDef("__CLING__CXX11");
      }

      if (CI->getDiagnostics().hasErrorOccurred()) {
        delete CI;
        CI = 0;
        return 0;
      }
    }
    CI->setTarget(TargetInfo::CreateTargetInfo(CI->getDiagnostics(),
                                               &Invocation->getTargetOpts()));
    if (!CI->hasTarget()) {
      delete CI;
      CI = 0;
      return 0;
    }
    CI->getTarget().setForcedLangOptions(CI->getLangOpts());
    SetClingTargetLangOpts(CI->getLangOpts(), CI->getTarget());
    if (CI->getTarget().getTriple().getOS() == llvm::Triple::Cygwin) {
      // clang "forgets" the basic arch part needed by winnt.h:
      if (CI->getTarget().getTriple().getArch() == llvm::Triple::x86) {
        CI->getInvocation().getPreprocessorOpts().addMacroDef("_X86_=1");
      } else if (CI->getTarget().getTriple().getArch()
                 == llvm::Triple::x86_64) {
        CI->getInvocation().getPreprocessorOpts().addMacroDef("__x86_64=1");
      } else {
        llvm::errs() << "Warning: unhandled target architecture "
                     << CI->getTarget().getTriple().getArchName() << '\n';
      }
    }

    // Set up source and file managers
    CI->createFileManager();
    SourceManager* SM = new SourceManager(CI->getDiagnostics(),
                                          CI->getFileManager(),
                                          /*UserFilesAreVolatile*/ true); 
    CI->setSourceManager(SM); // FIXME: SM leaks.

    // Set up the memory buffer
    if (buffer)
      CI->getSourceManager().createMainFileIDForMemBuffer(buffer);
    else {
      // As main file we want
      // * a virtual file that is claiming to be huge 
      // * with an empty memory buffer attached (to bring the content)
      SourceManager& SM = CI->getSourceManager();
      FileManager& FM = SM.getFileManager();
      // Build the virtual file
      const char* Filename = "InteractiveInputLineIncluder.h";
      const std::string& CGOptsMainFileName
        = CI->getInvocation().getCodeGenOpts().MainFileName;
      if (!CGOptsMainFileName.empty())
        Filename = CGOptsMainFileName.c_str();
      const FileEntry* FE
        = FM.getVirtualFile(Filename, 1U << 15U, time(0));
      FileID MainFileID = SM.createMainFileID(FE, SrcMgr::C_User);
      const SrcMgr::SLocEntry& MainFileSLocE = SM.getSLocEntry(MainFileID);
      const SrcMgr::ContentCache* MainFileCC
        = MainFileSLocE.getFile().getContentCache();
      llvm::MemoryBuffer* MainFileMB
        = llvm::MemoryBuffer::getMemBuffer("/*CLING MAIN FILE*/\n");
      const_cast<SrcMgr::ContentCache*>(MainFileCC)->setBuffer(MainFileMB);
    }

    // Set up the preprocessor
    CI->createPreprocessor();
    Preprocessor& PP = CI->getPreprocessor();
    PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOpts());

    // Set up the ASTContext
    ASTContext *Ctx = new ASTContext(CI->getLangOpts(),
                                     PP.getSourceManager(), &CI->getTarget(),
                                     PP.getIdentifierTable(),
                                     PP.getSelectorTable(), PP.getBuiltinInfo(),
                                     /*size_reserve*/0, /*DelayInit*/false);
    CI->setASTContext(Ctx);

    // Set up the ASTConsumers
    CI->setASTConsumer(new DeclCollector());

    // Set up Sema
    CodeCompleteConsumer* CCC = 0;
    CI->createSema(TU_Complete, CCC);

    // Set CodeGen options
    // CI->getCodeGenOpts().DebugInfo = 1; // want debug info
    // CI->getCodeGenOpts().EmitDeclMetadata = 1; // For unloading, for later
    CI->getCodeGenOpts().OptimizationLevel = 0; // see pure SSA, that comes out
    CI->getCodeGenOpts().CXXCtorDtorAliases = 0; // aliasing the complete
                                                 // ctor to the base ctor causes
                                                 // the JIT to crash
    // When asserts are on, TURN ON not compare the VerifyModule
    assert(CI->getCodeGenOpts().VerifyModule = 1);

    return CI;
  }
示例#16
0
  CompilerInstance* CIFactory::createCI(llvm::MemoryBuffer* buffer,
                                        int argc,
                                        const char* const *argv,
                                        const char* llvmdir) {
    // Create an instance builder, passing the llvmdir and arguments.
    //
    //  Initialize the llvm library.
    llvm::InitializeNativeTarget();
    llvm::InitializeAllAsmPrinters();
    llvm::sys::Path resource_path;
    if (llvmdir) {
      resource_path = llvmdir;
      resource_path.appendComponent("lib");
      resource_path.appendComponent("clang");
      resource_path.appendComponent(CLANG_VERSION_STRING);
    } else {
      // FIXME: The first arg really does need to be argv[0] on FreeBSD.
      //
      // Note: The second arg is not used for Apple, FreeBSD, Linux,
      //       or cygwin, and can only be used on systems which support
      //       the use of dladdr().
      //
      // Note: On linux and cygwin this uses /proc/self/exe to find the path.
      //
      // Note: On Apple it uses _NSGetExecutablePath().
      //
      // Note: On FreeBSD it uses getprogpath().
      //
      // Note: Otherwise it uses dladdr().
      //
      resource_path
        = CompilerInvocation::GetResourcesPath("cling",
                                       (void*)(intptr_t) locate_cling_executable
                                               );
    }
    if (!resource_path.canRead()) {
      llvm::errs()
        << "ERROR in cling::CIFactory::createCI():\n  resource directory "
        << resource_path.str() << " not found!\n";
      resource_path = "";
    }

    //______________________________________
    DiagnosticOptions DefaultDiagnosticOptions;
    DefaultDiagnosticOptions.ShowColors = 1;
    TextDiagnosticPrinter* DiagnosticPrinter
      = new TextDiagnosticPrinter(llvm::errs(), DefaultDiagnosticOptions);
    llvm::IntrusiveRefCntPtr<clang::DiagnosticIDs> DiagIDs(new DiagnosticIDs());
    DiagnosticsEngine* Diagnostics
      = new DiagnosticsEngine(DiagIDs, DiagnosticPrinter,
                              /*Owns it*/ true); // LEAKS!

    std::vector<const char*> argvCompile(argv, argv + argc);
    // We do C++ by default; append right after argv[0] name
    // Only insert it if there is no other "-x":
    bool haveMinusX = false;
    for (const char* const* iarg = argv; !haveMinusX && iarg < argv + argc;
         ++iarg) {
      haveMinusX = !strcmp(*iarg, "-x");
    }
    if (!haveMinusX) {
      argvCompile.insert(argvCompile.begin() + 1,"-x");
      argvCompile.insert(argvCompile.begin() + 2, "c++");
    }
    argvCompile.push_back("-c");
    argvCompile.push_back("-");

    bool IsProduction = false;
    assert(IsProduction = true && "set IsProduction if asserts are on.");
    clang::driver::Driver Driver(argv[0], llvm::sys::getDefaultTargetTriple(),
                                 "cling.out",
                                 IsProduction,
                                 *Diagnostics);
    //Driver.setWarnMissingInput(false);
    Driver.setCheckInputsExist(false); // think foo.C(12)
    llvm::ArrayRef<const char*>RF(&(argvCompile[0]), argvCompile.size());
    llvm::OwningPtr<clang::driver::Compilation>
      Compilation(Driver.BuildCompilation(RF));
    const clang::driver::ArgStringList* CC1Args
      = GetCC1Arguments(Diagnostics, Compilation.get());
    if (CC1Args == NULL) {
      return 0;
    }
    clang::CompilerInvocation*
      Invocation = new clang::CompilerInvocation; // LEAKS!
    clang::CompilerInvocation::CreateFromArgs(*Invocation, CC1Args->data() + 1,
                                              CC1Args->data() + CC1Args->size(),
                                              *Diagnostics);
    Invocation->getFrontendOpts().DisableFree = true;

    if (Invocation->getHeaderSearchOpts().UseBuiltinIncludes &&
        !resource_path.empty()) {
      // Update ResourceDir
      // header search opts' entry for resource_path/include isn't
      // updated by providing a new resource path; update it manually.
      clang::HeaderSearchOptions& Opts = Invocation->getHeaderSearchOpts();
      llvm::sys::Path oldResInc(Opts.ResourceDir);
      oldResInc.appendComponent("include");
      llvm::sys::Path newResInc(resource_path);
      newResInc.appendComponent("include");
      bool foundOldResInc = false;
      for (unsigned i = 0, e = Opts.UserEntries.size();
           !foundOldResInc && i != e; ++i) {
        HeaderSearchOptions::Entry &E = Opts.UserEntries[i];
        if (!E.IsUserSupplied && !E.IsFramework
            && E.Group == clang::frontend::System && E.IgnoreSysRoot
            && E.IsInternal && !E.ImplicitExternC
            && oldResInc.str() == E.Path) {
          E.Path = newResInc.str();
          foundOldResInc = true;
        }
      }

      Opts.ResourceDir = resource_path.str();
    }

    // Create and setup a compiler instance.
    CompilerInstance* CI = new CompilerInstance();
    CI->setInvocation(Invocation);

    CI->createDiagnostics(CC1Args->size(), CC1Args->data() + 1);
    {
      //
      //  Buffer the error messages while we process
      //  the compiler options.
      //

      // Set the language options, which cling needs
      SetClingCustomLangOpts(CI->getLangOpts());

      CI->getInvocation().getPreprocessorOpts().addMacroDef("__CLING__");
      if (CI->getDiagnostics().hasErrorOccurred()) {
        delete CI;
        CI = 0;
        return 0;
      }
    }
    CI->setTarget(TargetInfo::CreateTargetInfo(CI->getDiagnostics(),
                                               Invocation->getTargetOpts()));
    if (!CI->hasTarget()) {
      delete CI;
      CI = 0;
      return 0;
    }
    CI->getTarget().setForcedLangOptions(CI->getLangOpts());
    SetClingTargetLangOpts(CI->getLangOpts(), CI->getTarget());

    // Set up source and file managers
    CI->createFileManager();
    CI->createSourceManager(CI->getFileManager());

    // Set up the memory buffer
    if (buffer)
      CI->getSourceManager().createMainFileIDForMemBuffer(buffer);

    // Set up the preprocessor
    CI->createPreprocessor();
    Preprocessor& PP = CI->getPreprocessor();
    PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOpts());

    // Set up the ASTContext
    ASTContext *Ctx = new ASTContext(CI->getLangOpts(),
                                     PP.getSourceManager(), &CI->getTarget(),
                                     PP.getIdentifierTable(),
                                     PP.getSelectorTable(), PP.getBuiltinInfo(),
                                     /*size_reserve*/0, /*DelayInit*/false);
    CI->setASTContext(Ctx);

    // Set up the ASTConsumers
    CI->setASTConsumer(new DeclCollector());

    // Set up Sema
    CodeCompleteConsumer* CCC = 0;
    CI->createSema(TU_Prefix, CCC);

    // Set CodeGen options
    // CI->getCodeGenOpts().DebugInfo = 1; // want debug info
    // CI->getCodeGenOpts().EmitDeclMetadata = 1; // For unloading, for later
    CI->getCodeGenOpts().OptimizationLevel = 0; // see pure SSA, that comes out
    // When asserts are on, TURN ON not compare the VerifyModule
    assert(CI->getCodeGenOpts().VerifyModule = 1);
    return CI;
  }
static int CompileSubprocess(const char **argv, int argc, 
                             sys::Path &ResourceDir, bool bugreport,
                             bool versionOnly, sys::Path &apiMapPath)
{
  std::vector<char*> llvmArgs;
  char apim[] = "-clam-apimap";
  llvmArgs.push_back((char*)argv[0]);
  llvmArgs.push_back(apim);
  llvmArgs.push_back((char*)apiMapPath.c_str());

  // Split args into cc1 and LLVM args, separator is --
  int cc1_argc;
  for (cc1_argc=1;cc1_argc<argc;cc1_argc++) {
    if (StringRef(argv[cc1_argc]) == "--") {
      for (int i=cc1_argc+1;i<argc;i++) {
        llvmArgs.push_back((char*)argv[i]);
      }
      break;
    }
  }

  // Initialize CompilerInstance from commandline args
  CompilerInstance Clang;
  Clang.setLLVMContext(new llvm::LLVMContext);
  LLVMInitializeClamBCTargetInfo();
  LLVMInitializeClamBCTarget();

  TextDiagnosticBuffer DiagsBuffer;
  Diagnostic Diags(&DiagsBuffer);
  CompilerInvocation::CreateFromArgs(Clang.getInvocation(), argv+1,
                                     argv+cc1_argc, Diags);
  FrontendOptions &FrontendOpts = Clang.getInvocation().getFrontendOpts();
  // Handle --version
  if (FrontendOpts.ShowVersion || versionOnly) {
    printVersion(outs(), true);
    exit(0);
  }

  DiagnosticOptions &DiagOpts = Clang.getInvocation().getDiagnosticOpts();
  DiagOpts.ShowOptionNames = DiagOpts.ShowColors = 1;
  DiagOpts.MessageLength = 80;// we are writing to a file
  DiagOpts.Warnings.push_back("all");
  DiagOpts.Warnings.push_back("no-pointer-sign");

  Clang.createDiagnostics(argc-1, const_cast<char**>(argv+1));
  if (!Clang.hasDiagnostics())
    return 2;

  Clang.getInvocation().getHeaderSearchOpts().ResourceDir = ResourceDir.str();

  // Set default options
  LangOptions &LangOpts = Clang.getInvocation().getLangOpts();
  // This is a freestanding environment, without libc, etc.
  LangOpts.Freestanding = 1;
  HeaderSearchOptions &HeaderSearchOpts =
    Clang.getInvocation().getHeaderSearchOpts();
  HeaderSearchOpts.UseStandardIncludes = 0;
  if (bugreport)
    HeaderSearchOpts.Verbose = 1;

  if (FrontendOpts.ProgramAction != frontend::PrintPreprocessedInput)
    FrontendOpts.ProgramAction = frontend::EmitBC;
  if (bugreport)
    FrontendOpts.ProgramAction = frontend::PrintPreprocessedInput;

  // Don't bother freeing of memory on exit 
  FrontendOpts.DisableFree = 1;

  CodeGenOptions &Opts = Clang.getInvocation().getCodeGenOpts();
  Opts.Inlining = CodeGenOptions::OnlyAlwaysInlining;
  // always generate debug info, so that ClamBC backend can output sourcelevel
  // diagnostics.
  Opts.DebugInfo = true;
  // FIXME: once the verifier can work w/o targetdata, and targetdate opts set
  // DisableLLVMOpts to true!
  // This is needed to avoid target-specific optimizations
  Opts.DisableLLVMOpts = false;

  AnalyzerOptions &AOpts = Clang.getInvocation().getAnalyzerOpts();
  AOpts.AnalysisList.push_back(WarnDeadStores);
  AOpts.AnalysisList.push_back(WarnUninitVals);
  AOpts.AnalysisList.push_back(SecuritySyntacticChecks);
  AOpts.AnalysisList.push_back(WarnSizeofPointer);

  // Set triple
  Clang.getInvocation().getTargetOpts().Triple = "clambc-generic-generic";
  // Set default include
  Clang.getInvocation().getPreprocessorOpts().Includes.push_back("bytecode.h");

  // Set an LLVM error handler.
  llvm::llvm_install_error_handler(LLVMErrorHandler,
                                   static_cast<void*>(&Clang.getDiagnostics()));
  DiagsBuffer.FlushDiagnostics(Clang.getDiagnostics());
  // If there were any errors in processing arguments, exit now.
  if (Clang.getDiagnostics().getNumErrors())
    return 1;

  // Create the target instance.
  //TODO: directly create a clambc target
  Clang.setTarget(TargetInfo::CreateTargetInfo(Clang.getDiagnostics(),
                                               Clang.getTargetOpts()));
  if (!Clang.hasTarget())
    return 1;

  // Inform the target of the language options
  Clang.getTarget().setForcedLangOptions(Clang.getLangOpts());

  if (Clang.getHeaderSearchOpts().Verbose) {
    llvm::errs() << "clang -cc1 version " CLANG_VERSION_STRING
                 << " based upon " << PACKAGE_STRING
                 << " hosted on " << llvm::sys::getHostTriple() << "\n";
    // Convert the invocation back to argument strings.
    std::vector<std::string> InvocationArgs;
    Clang.getInvocation().toArgs(InvocationArgs);

    // Dump the converted arguments.
    llvm::SmallVector<const char*, 32> Invocation2Args;
    llvm::errs() << "invocation argv :";
    for (unsigned i = 0, e = InvocationArgs.size(); i != e; ++i) {
      Invocation2Args.push_back(InvocationArgs[i].c_str());
      llvm::errs() << " \"" << InvocationArgs[i] << '"';
    }
    llvm::errs() << "\n";
  }

  std::string Input = FrontendOpts.Inputs[0].second;
  if (Input == "-" && bugreport)
    return 2;
  raw_fd_ostream *fd = 0;
  if (FrontendOpts.ProgramAction == frontend::EmitBC) {
    // replace output file of compiler with a tempfile,
    // and save the final output filename.
    std::string FinalOutput = FrontendOpts.OutputFile;
    if (FinalOutput.empty()) {
      if (Input == "-")
        FinalOutput = "-";
      else {
        sys::Path P(sys::Path(Input).getBasename());
        P.appendSuffix("cbc");
        FinalOutput = P.str();
      }
    }
    llvm::raw_fd_ostream *tmpfd;
    std::string Err2;
    fd = Clang.createOutputFile(FinalOutput, Err2, false);
    if (!fd) {
      Clang.getDiagnostics().Report(clang::diag::err_drv_unable_to_make_temp) << Err2;
      return 1;
    }
    sys::Path P = sys::Path(FinalOutput);
    P.eraseSuffix();
    P.appendSuffix("tmp.bc");
    FrontendOpts.OutputFile = P.str();
    tmpfd = Clang.createOutputFile(P.str(), Err2, true);
    if (!tmpfd) {
      Clang.getDiagnostics().Report(clang::diag::err_drv_unable_to_make_temp) << Err2;
      return 1;
    }
    delete tmpfd;

    sys::RemoveFileOnSignal(sys::Path(FrontendOpts.OutputFile));
  }

  if (!FrontendOpts.Inputs.empty()) {
    char srcp[] = "-clambc-src";
    llvmArgs.push_back(srcp);
    llvmArgs.push_back(strdup(Input.c_str()));
  }

  // Parse LLVM commandline args
  cl::ParseCommandLineOptions(llvmArgs.size(), &llvmArgs[0]);

  std::string re2cpath = getTmpDir();
  if (re2cpath.empty()) {
    llvm::errs()<< "Failed to create temporary file for re2c-out!\n";
    return 2;
  }
  re2cpath += "/clambc-compiler-re2c-out";

  sys::Path TmpRe2C(re2cpath);
  if (!FrontendOpts.Inputs.empty()) {
    char re2c_args[] = "--no-generation-date";
    char re2c_o[] = "-o";
    char name[] = "";
    char *args[6] = {
      name,
      re2c_args,
      re2c_o,
      NULL,
      NULL,
      NULL
    };
    args[4] = strdup(Input.c_str());
    std::string ErrMsg("");
    if (TmpRe2C.createTemporaryFileOnDisk(true, &ErrMsg)) {
      Clang.getDiagnostics().Report(clang::diag::err_drv_unable_to_make_temp) <<
        ErrMsg;
      return 1;
    }
    sys::RemoveFileOnSignal(TmpRe2C);
    args[3] = strdup(TmpRe2C.str().c_str());
    int ret = re2c_main(5, args);
    if (ret) {
      Clang.getDiagnostics().Report(clang::diag::err_drv_command_failed) <<
        "re2c" << ret;
      return 1;
    }
    Input = TmpRe2C.str();
  }

  // Create a file manager object to provide access to and cache the
  // filesystem.
  Clang.createFileManager();

  // Create the source manager.
  Clang.createSourceManager();

  // Create the preprocessor.
  Clang.createPreprocessor();

  llvm::OwningPtr<FrontendAction> Act(CreateFrontendAction(Clang));

  if (Act && Act->BeginSourceFile(Clang, Input, false)) {
    Act->Execute();
    Act->EndSourceFile();
  }

  TmpRe2C.eraseFromDisk();// erase tempfile
  int ret = Clang.getDiagnostics().getNumErrors() != 0;
  if (ret)
    return ret;

  if (FrontendOpts.ProgramAction != frontend::EmitBC) {
    // stop processing if not compiling a final .cbc file
    return 0;
  }

  ret = compileInternal(FrontendOpts.OutputFile.c_str(), Opts.OptimizationLevel,
                        Opts.OptimizeSize, argv[0], fd, Clang);
  // Erase temp file, we need to do this here since OutputFile is a tempfile
  // only if action was EmitBC
  sys::Path(FrontendOpts.OutputFile).eraseFromDisk();
  return ret;
}
示例#18
0
int main()
{
    using clang::CompilerInstance;
    using clang::TargetOptions;
    using clang::TargetInfo;
    using clang::FileEntry;
    using clang::Token;
    using clang::HeaderSearch;
    using clang::HeaderSearchOptions;
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;

    CompilerInstance ci;
    DiagnosticOptions diagnosticOptions;
    ci.createDiagnostics();

    llvm::IntrusiveRefCntPtr<TargetOptions> pto( new TargetOptions());
    pto->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto.getPtr());
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor();
    ci.getPreprocessorOpts().UsePredefines = true;

    llvm::IntrusiveRefCntPtr<clang::HeaderSearchOptions> hso( new clang::HeaderSearchOptions());
    HeaderSearch headerSearch(hso,
                              ci.getFileManager(),
                              ci.getDiagnostics(),
                              ci.getLangOpts(),
                              pti);

    // <Warning!!> -- Platform Specific Code lives here
    // This depends on A) that you're running linux and
    // B) that you have the same GCC LIBs installed that
    // I do. 
    // Search through Clang itself for something like this,
    // go on, you won't find it. The reason why is Clang
    // has its own versions of std* which are installed under 
    // /usr/local/lib/clang/<version>/include/
    // See somewhere around Driver.cpp:77 to see Clang adding
    // its version of the headers to its include path.
    hso->AddPath("/usr/include", 
                                clang::frontend::Angled, 
                                false, 
                                false);
    hso->AddPath("/usr/lib/gcc/x86_64-linux-gnu/4.4.5/include",
                                clang::frontend::Angled,
                                false, 
                                false);
    // </Warning!!> -- End of Platform Specific Code

    clang::InitializePreprocessor(ci.getPreprocessor(), 
                                  ci.getPreprocessorOpts(),
                                  *hso,
                                  ci.getFrontendOpts());

	const FileEntry *pFile = ci.getFileManager().getFile("testInclude.c");
    ci.getSourceManager().createMainFileID(pFile);
    ci.getPreprocessor().EnterMainSourceFile();
    ci.getDiagnosticClient().BeginSourceFile(ci.getLangOpts(),
                                             &ci.getPreprocessor());
    Token tok;
    do {
        ci.getPreprocessor().Lex(tok);
        if( ci.getDiagnostics().hasErrorOccurred())
            break;
        ci.getPreprocessor().DumpToken(tok);
        std::cerr << std::endl;
    } while ( tok.isNot(clang::tok::eof));
    ci.getDiagnosticClient().EndSourceFile();

    return 0;
}
示例#19
0
bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
                                     llvm::StringRef Filename,
                                     InputKind InputKind) {
  assert(!Instance && "Already processing a source file!");
  assert(!Filename.empty() && "Unexpected empty filename!");
  setCurrentFile(Filename, InputKind);
  setCompilerInstance(&CI);

  if (!BeginInvocation(CI))
    goto failure;

  // AST files follow a very different path, since they share objects via the
  // AST unit.
  if (InputKind == IK_AST) {
    assert(!usesPreprocessorOnly() &&
           "Attempt to pass AST file to preprocessor only action!");
    assert(hasASTFileSupport() &&
           "This action does not have AST file support!");

    llvm::IntrusiveRefCntPtr<Diagnostic> Diags(&CI.getDiagnostics());
    std::string Error;
    ASTUnit *AST = ASTUnit::LoadFromASTFile(Filename, Diags,
                                            CI.getFileSystemOpts());
    if (!AST)
      goto failure;

    setCurrentFile(Filename, InputKind, AST);

    // Set the shared objects, these are reset when we finish processing the
    // file, otherwise the CompilerInstance will happily destroy them.
    CI.setFileManager(&AST->getFileManager());
    CI.setSourceManager(&AST->getSourceManager());
    CI.setPreprocessor(&AST->getPreprocessor());
    CI.setASTContext(&AST->getASTContext());

    // Initialize the action.
    if (!BeginSourceFileAction(CI, Filename))
      goto failure;

    /// Create the AST consumer.
    CI.setASTConsumer(CreateWrappedASTConsumer(CI, Filename));
    if (!CI.hasASTConsumer())
      goto failure;

    return true;
  }

  // Set up the file and source managers, if needed.
  if (!CI.hasFileManager())
    CI.createFileManager();
  if (!CI.hasSourceManager())
    CI.createSourceManager(CI.getFileManager());

  // IR files bypass the rest of initialization.
  if (InputKind == IK_LLVM_IR) {
    assert(hasIRSupport() &&
           "This action does not have IR file support!");

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), 0);

    // Initialize the action.
    if (!BeginSourceFileAction(CI, Filename))
      goto failure;

    return true;
  }

  // Set up the preprocessor.
  CI.createPreprocessor();

  // Inform the diagnostic client we are processing a source file.
  CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(),
                                           &CI.getPreprocessor());

  // Initialize the action.
  if (!BeginSourceFileAction(CI, Filename))
    goto failure;

  /// Create the AST context and consumer unless this is a preprocessor only
  /// action.
  if (!usesPreprocessorOnly()) {
    CI.createASTContext();

    llvm::OwningPtr<ASTConsumer> Consumer(
        CreateWrappedASTConsumer(CI, Filename));
    if (!Consumer)
      goto failure;

    CI.getASTContext().setASTMutationListener(Consumer->GetASTMutationListener());

    if (!CI.getPreprocessorOpts().ChainedIncludes.empty()) {
      // Convert headers to PCH and chain them.
      llvm::OwningPtr<ExternalASTSource> source;
      source.reset(ChainedIncludesSource::create(CI));
      if (!source)
        goto failure;
      CI.getASTContext().setExternalSource(source);

    } else if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
      // Use PCH.
      assert(hasPCHSupport() && "This action does not have PCH support!");
      ASTDeserializationListener *DeserialListener
          = CI.getInvocation().getFrontendOpts().ChainedPCH ?
                  Consumer->GetASTDeserializationListener() : 0;
      if (CI.getPreprocessorOpts().DumpDeserializedPCHDecls)
        DeserialListener = new DeserializedDeclsDumper(DeserialListener);
      if (!CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn.empty())
        DeserialListener = new DeserializedDeclsChecker(CI.getASTContext(),
                         CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn,
                                                        DeserialListener);
      CI.createPCHExternalASTSource(
                                CI.getPreprocessorOpts().ImplicitPCHInclude,
                                CI.getPreprocessorOpts().DisablePCHValidation,
                                CI.getPreprocessorOpts().DisableStatCache,
                                DeserialListener);
      if (!CI.getASTContext().getExternalSource())
        goto failure;
    }

    CI.setASTConsumer(Consumer.take());
    if (!CI.hasASTConsumer())
      goto failure;
  }

  // Initialize builtin info as long as we aren't using an external AST
  // source.
  if (!CI.hasASTContext() || !CI.getASTContext().getExternalSource()) {
    Preprocessor &PP = CI.getPreprocessor();
    PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOptions());
  }

  return true;

  // If we failed, reset state since the client will not end up calling the
  // matching EndSourceFile().
  failure:
  if (isCurrentFileAST()) {
    CI.setASTContext(0);
    CI.setPreprocessor(0);
    CI.setSourceManager(0);
    CI.setFileManager(0);
  }

  CI.getDiagnosticClient().EndSourceFile();
  setCurrentFile("", IK_None);
  setCompilerInstance(0);
  return false;
}
//使用的格式:  ./checkMemory 被测试文件名 --
int main(int argc,const char **argv) {

	//----此块基本一样    start----
    struct stat sb;             

    //set compilerinstance for rewriter		
	std::string fileName(argv[1]);
	if (stat(fileName.c_str(), &sb) == -1){
        perror(fileName.c_str());
        exit(EXIT_FAILURE);
    }

	
	CompilerInstance compiler;
	DiagnosticOptions diagnosticOptions;
	compiler.createDiagnostics();


	//invocation可以传递任何flag给preprocessor
	CompilerInvocation *Invocation = new CompilerInvocation;

	CompilerInvocation::CreateFromArgs(*Invocation, argv + 1, argv + argc-1,compiler.getDiagnostics());

	compiler.setInvocation(Invocation);


	//建立TargetOptions和TargetInfo,并设置好Target
	// Set default target triple
	llvm::IntrusiveRefCntPtr<TargetOptions> pto( new TargetOptions());
	pto->Triple = llvm::sys::getDefaultTargetTriple();
	llvm::IntrusiveRefCntPtr<TargetInfo>
	 pti(TargetInfo::CreateTargetInfo(compiler.getDiagnostics(),
		                              pto.getPtr()));
	compiler.setTarget(pti.getPtr());

	//FileManager,SourceManager 以及heaDREearch的Options的设置
	compiler.createFileManager();
	compiler.createSourceManager(compiler.getFileManager());

	HeaderSearchOptions &headerSearchOptions = compiler.getHeaderSearchOpts();
	headerSearchOptions.AddPath("/usr/include/c++",
		  clang::frontend::Angled,
		  false,
		  false);
	
    headerSearchOptions.AddPath("/usr/local/lib/clang/3.5.0/include",
          clang::frontend::Angled,
          false,
          false);
    headerSearchOptions.AddPath("/usr/include/i386-linux-gnu",
          clang::frontend::Angled,
          false,
          false);
    headerSearchOptions.AddPath("/usr/include",
          clang::frontend::Angled,
          false,
          false);
	
    
    
/*
    headerSearchOptions.AddPath("/usr/include",
          clang::frontend::Angled,
          false,
          false);
	*/
	//langOptions设置,要传给rewriter
   	LangOptions langOpts;
	langOpts.GNUMode = 1; 
	langOpts.CXXExceptions = 1; 
	langOpts.RTTI = 1; 
	langOpts.Bool = 1; 
	langOpts.CPlusPlus = 1; 
	Invocation->setLangDefaults(langOpts, clang::IK_CXX,clang::LangStandard::lang_cxx0x);

	//create PP
	compiler.createPreprocessor();//(TU_Complete);//
	compiler.getPreprocessorOpts().UsePredefines = false;
	//createASTContext
	compiler.createASTContext();
  
 	//set the sourceManager for rewriter 

	
	rewrite.setSourceMgr(compiler.getSourceManager(), compiler.getLangOpts());
	
	//插装文件入口

	const FileEntry *pFile = compiler.getFileManager().getFile(fileName);
	compiler.getSourceManager().createMainFileID(pFile);
	compiler.getDiagnosticClient().BeginSourceFile(compiler.getLangOpts(),&compiler.getPreprocessor());
	                                        
	
	MyASTConsumer astConsumer(rewrite);
	//将.c转成_out.c
	// Convert <file>.c to <file_out>.c
	std::string outName (fileName);
	/*size_t ext = outName.rfind(".");
	//根据有没有找到‘。’来决定在哪里加入_out
	if (ext == std::string::npos)
		ext = outName.length();
	outName.insert(ext, "_out");
	*/
	outName.insert(outName.length(),"_out");
	llvm::errs() << "Output to: " << outName << "\n";
	
	std::string OutErrorInfo;
	//新建输入到新文件的流
	llvm::raw_fd_ostream outFile(outName.c_str(), OutErrorInfo);//,llvm::sys::fs::F_None);//版本问题//////


	//----此块基本一样    end----

	if (OutErrorInfo.empty()){
		// Parse the AST
		//用PP,astConsumer,ASTContext来解释AST
		ParseAST(compiler.getPreprocessor(), &astConsumer, compiler.getASTContext());
		compiler.getDiagnosticClient().EndSourceFile();
    
		//建立ClangTool 
        CommonOptionsParser OptionsParser(argc, argv);//, MyToolCategory);
        ClangTool Tool(OptionsParser.getCompilations(),
                 OptionsParser.getSourcePathList());
		//开始匹配             
        
        MallocVarPrinter mallocVarPrinter;
        MatchFinder mallocVarFinder;
        mallocVarFinder.addMatcher(MallocVarMatcher, &mallocVarPrinter);
        Tool.run(newFrontendActionFactory(&mallocVarFinder));
        
        MallocPrinter mallocPrinter;
        MatchFinder mallocFinder;
        mallocFinder.addMatcher(MallocMatcher, &mallocPrinter);
        Tool.run(newFrontendActionFactory(&mallocFinder));
        
        FreeVarPrinter freeVarPrinter;
        MatchFinder freeVarFinder;
        freeVarFinder.addMatcher(FreeVarMatcher, &freeVarPrinter);
        Tool.run(newFrontendActionFactory(&freeVarFinder));
        
        FreePrinter freePrinter;
        MatchFinder freeFinder;
        freeFinder.addMatcher(FreeMatcher, &freePrinter);
        Tool.run(newFrontendActionFactory(&freeFinder));
   
    
                  
    	const RewriteBuffer *RewriteBuf =rewrite.getRewriteBufferFor(compiler.getSourceManager().getMainFileID());
		
        if(RewriteBuf != NULL){
            #ifdef DEBUG
            llvm::errs() << " RewriteBuf not NULL \n";
			//在文件头加上改头文件,防止没有 stdlib,stdio 而不能使用printf和exit函数
		    #endif
			outFile << "#include\"plugHead.h\"\n";
            
            outFile << std::string(RewriteBuf->begin(), RewriteBuf->end());		
        }else{
            #ifdef DEBUG
            llvm::errs() << " RewriteBuf is NULL \n";
			#endif

        	outFile << "#include\"plugHead.h\"\n";
            std::ifstream infile(fileName.c_str());
            if(!infile){
                llvm::errs() << " fail to open the input file!\n";
                exit(-1);                
            }
            std::string str_in;
            while(std::getline(infile,str_in)){
                outFile << str_in <<"\n";
            }
        
        }
        outFile.close();


        #ifdef DEBUG        
        std::string checkStructErrorInfo;
        std::string checkStructFileName = "checkStruct.txt";
        //新建输入到新文件的流,将已经找到的malloc过的结构体信息写入文件,供另一个处理程序读取
        llvm::raw_fd_ostream csFile(checkStructFileName.c_str(),checkStructErrorInfo);//,llvm::sys::fs::F_None);
        if (checkStructErrorInfo.empty()){
      	    for(unsigned int i=0;i<cpVec.size();++i){            
    	        csFile << cpVec[i].name << " " << cpVec[i].row << " " << cpVec[i].col << " " << cpVec[i].declName << " " << cpVec[i].declRow << " " << cpVec[i].declCol << "\n" ;
	        }            
        }
	    csFile.close();  
        for(unsigned int i=0;i<cpVec.size();++i){
	        llvm::errs()<<cpVec[i].name<<"|"<<cpVec[i].declName<<":"<<cpVec[i].declRow<<":"<<cpVec[i].declCol<<"\n";  
	    }	
        #endif
	    
	}
	else{
		llvm::errs() << "Cannot open " << outName << " for writing\n";
	}
	

      
    return 0;
}
示例#21
0
bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
                                     const FrontendInputFile &RealInput) {
  FrontendInputFile Input(RealInput);
  assert(!Instance && "Already processing a source file!");
  assert(!Input.isEmpty() && "Unexpected empty filename!");
  setCurrentInput(Input);
  setCompilerInstance(&CI);

  StringRef InputFile = Input.getFile();
  bool HasBegunSourceFile = false;
  bool ReplayASTFile = Input.getKind().getFormat() == InputKind::Precompiled &&
                       usesPreprocessorOnly();
  if (!BeginInvocation(CI))
    goto failure;

  // If we're replaying the build of an AST file, import it and set up
  // the initial state from its build.
  if (ReplayASTFile) {
    IntrusiveRefCntPtr<DiagnosticsEngine> Diags(&CI.getDiagnostics());

    // The AST unit populates its own diagnostics engine rather than ours.
    IntrusiveRefCntPtr<DiagnosticsEngine> ASTDiags(
        new DiagnosticsEngine(Diags->getDiagnosticIDs(),
                              &Diags->getDiagnosticOptions()));
    ASTDiags->setClient(Diags->getClient(), /*OwnsClient*/false);

    std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromASTFile(
        InputFile, CI.getPCHContainerReader(), ASTUnit::LoadPreprocessorOnly,
        ASTDiags, CI.getFileSystemOpts(), CI.getCodeGenOpts().DebugTypeExtRefs);
    if (!AST)
      goto failure;

    // Options relating to how we treat the input (but not what we do with it)
    // are inherited from the AST unit.
    CI.getHeaderSearchOpts() = AST->getHeaderSearchOpts();
    CI.getPreprocessorOpts() = AST->getPreprocessorOpts();
    CI.getLangOpts() = AST->getLangOpts();

    // Set the shared objects, these are reset when we finish processing the
    // file, otherwise the CompilerInstance will happily destroy them.
    CI.setFileManager(&AST->getFileManager());
    CI.createSourceManager(CI.getFileManager());
    CI.getSourceManager().initializeForReplay(AST->getSourceManager());

    // Preload all the module files loaded transitively by the AST unit. Also
    // load all module map files that were parsed as part of building the AST
    // unit.
    if (auto ASTReader = AST->getASTReader()) {
      auto &MM = ASTReader->getModuleManager();
      auto &PrimaryModule = MM.getPrimaryModule();

      for (ModuleFile &MF : MM)
        if (&MF != &PrimaryModule)
          CI.getFrontendOpts().ModuleFiles.push_back(MF.FileName);

      ASTReader->visitTopLevelModuleMaps(PrimaryModule,
                                         [&](const FileEntry *FE) {
        CI.getFrontendOpts().ModuleMapFiles.push_back(FE->getName());
      });
    }

    // Set up the input file for replay purposes.
    auto Kind = AST->getInputKind();
    if (Kind.getFormat() == InputKind::ModuleMap) {
      Module *ASTModule =
          AST->getPreprocessor().getHeaderSearchInfo().lookupModule(
              AST->getLangOpts().CurrentModule, /*AllowSearch*/ false);
      assert(ASTModule && "module file does not define its own module");
      Input = FrontendInputFile(ASTModule->PresumedModuleMapFile, Kind);
    } else {
      auto &SM = CI.getSourceManager();
      FileID ID = SM.getMainFileID();
      if (auto *File = SM.getFileEntryForID(ID))
        Input = FrontendInputFile(File->getName(), Kind);
      else
        Input = FrontendInputFile(SM.getBuffer(ID), Kind);
    }
    setCurrentInput(Input, std::move(AST));
  }

  // AST files follow a very different path, since they share objects via the
  // AST unit.
  if (Input.getKind().getFormat() == InputKind::Precompiled) {
    assert(!usesPreprocessorOnly() && "this case was handled above");
    assert(hasASTFileSupport() &&
           "This action does not have AST file support!");

    IntrusiveRefCntPtr<DiagnosticsEngine> Diags(&CI.getDiagnostics());

    std::unique_ptr<ASTUnit> AST = ASTUnit::LoadFromASTFile(
        InputFile, CI.getPCHContainerReader(), ASTUnit::LoadEverything, Diags,
        CI.getFileSystemOpts(), CI.getCodeGenOpts().DebugTypeExtRefs);

    if (!AST)
      goto failure;

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), nullptr);
    HasBegunSourceFile = true;

    // Set the shared objects, these are reset when we finish processing the
    // file, otherwise the CompilerInstance will happily destroy them.
    CI.setFileManager(&AST->getFileManager());
    CI.setSourceManager(&AST->getSourceManager());
    CI.setPreprocessor(AST->getPreprocessorPtr());
    Preprocessor &PP = CI.getPreprocessor();
    PP.getBuiltinInfo().initializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOpts());
    CI.setASTContext(&AST->getASTContext());

    setCurrentInput(Input, std::move(AST));

    // Initialize the action.
    if (!BeginSourceFileAction(CI))
      goto failure;

    // Create the AST consumer.
    CI.setASTConsumer(CreateWrappedASTConsumer(CI, InputFile));
    if (!CI.hasASTConsumer())
      goto failure;

    return true;
  }

  // Set up the file and source managers, if needed.
  if (!CI.hasFileManager()) {
    if (!CI.createFileManager()) {
      goto failure;
    }
  }
  if (!CI.hasSourceManager())
    CI.createSourceManager(CI.getFileManager());

  // Set up embedding for any specified files. Do this before we load any
  // source files, including the primary module map for the compilation.
  for (const auto &F : CI.getFrontendOpts().ModulesEmbedFiles) {
    if (const auto *FE = CI.getFileManager().getFile(F, /*openFile*/true))
      CI.getSourceManager().setFileIsTransient(FE);
    else
      CI.getDiagnostics().Report(diag::err_modules_embed_file_not_found) << F;
  }
  if (CI.getFrontendOpts().ModulesEmbedAllFiles)
    CI.getSourceManager().setAllFilesAreTransient(true);

  // IR files bypass the rest of initialization.
  if (Input.getKind().getLanguage() == InputKind::LLVM_IR) {
    assert(hasIRSupport() &&
           "This action does not have IR file support!");

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), nullptr);
    HasBegunSourceFile = true;

    // Initialize the action.
    if (!BeginSourceFileAction(CI))
      goto failure;

    // Initialize the main file entry.
    if (!CI.InitializeSourceManager(CurrentInput))
      goto failure;

    return true;
  }

  // If the implicit PCH include is actually a directory, rather than
  // a single file, search for a suitable PCH file in that directory.
  if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
    FileManager &FileMgr = CI.getFileManager();
    PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
    StringRef PCHInclude = PPOpts.ImplicitPCHInclude;
    std::string SpecificModuleCachePath = CI.getSpecificModuleCachePath();
    if (const DirectoryEntry *PCHDir = FileMgr.getDirectory(PCHInclude)) {
      std::error_code EC;
      SmallString<128> DirNative;
      llvm::sys::path::native(PCHDir->getName(), DirNative);
      bool Found = false;
      vfs::FileSystem &FS = *FileMgr.getVirtualFileSystem();
      for (vfs::directory_iterator Dir = FS.dir_begin(DirNative, EC), DirEnd;
           Dir != DirEnd && !EC; Dir.increment(EC)) {
        // Check whether this is an acceptable AST file.
        if (ASTReader::isAcceptableASTFile(
                Dir->getName(), FileMgr, CI.getPCHContainerReader(),
                CI.getLangOpts(), CI.getTargetOpts(), CI.getPreprocessorOpts(),
                SpecificModuleCachePath)) {
          PPOpts.ImplicitPCHInclude = Dir->getName();
          Found = true;
          break;
        }
      }

      if (!Found) {
        CI.getDiagnostics().Report(diag::err_fe_no_pch_in_dir) << PCHInclude;
        goto failure;
      }
    }
  }

  // Set up the preprocessor if needed. When parsing model files the
  // preprocessor of the original source is reused.
  if (!isModelParsingAction())
    CI.createPreprocessor(getTranslationUnitKind());

  // Inform the diagnostic client we are processing a source file.
  CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(),
                                           &CI.getPreprocessor());
  HasBegunSourceFile = true;

  // Initialize the main file entry.
  if (!CI.InitializeSourceManager(Input))
    goto failure;

  // For module map files, we first parse the module map and synthesize a
  // "<module-includes>" buffer before more conventional processing.
  if (Input.getKind().getFormat() == InputKind::ModuleMap) {
    CI.getLangOpts().setCompilingModule(LangOptions::CMK_ModuleMap);

    std::string PresumedModuleMapFile;
    unsigned OffsetToContents;
    if (loadModuleMapForModuleBuild(CI, Input.isSystem(),
                                    Input.isPreprocessed(),
                                    PresumedModuleMapFile, OffsetToContents))
      goto failure;

    auto *CurrentModule = prepareToBuildModule(CI, Input.getFile());
    if (!CurrentModule)
      goto failure;

    CurrentModule->PresumedModuleMapFile = PresumedModuleMapFile;

    if (OffsetToContents)
      // If the module contents are in the same file, skip to them.
      CI.getPreprocessor().setSkipMainFilePreamble(OffsetToContents, true);
    else {
      // Otherwise, convert the module description to a suitable input buffer.
      auto Buffer = getInputBufferForModule(CI, CurrentModule);
      if (!Buffer)
        goto failure;

      // Reinitialize the main file entry to refer to the new input.
      auto Kind = CurrentModule->IsSystem ? SrcMgr::C_System : SrcMgr::C_User;
      auto &SourceMgr = CI.getSourceManager();
      auto BufferID = SourceMgr.createFileID(std::move(Buffer), Kind);
      assert(BufferID.isValid() && "couldn't creaate module buffer ID");
      SourceMgr.setMainFileID(BufferID);
    }
  }

  // Initialize the action.
  if (!BeginSourceFileAction(CI))
    goto failure;

  // If we were asked to load any module map files, do so now.
  for (const auto &Filename : CI.getFrontendOpts().ModuleMapFiles) {
    if (auto *File = CI.getFileManager().getFile(Filename))
      CI.getPreprocessor().getHeaderSearchInfo().loadModuleMapFile(
          File, /*IsSystem*/false);
    else
      CI.getDiagnostics().Report(diag::err_module_map_not_found) << Filename;
  }

  // Add a module declaration scope so that modules from -fmodule-map-file
  // arguments may shadow modules found implicitly in search paths.
  CI.getPreprocessor()
      .getHeaderSearchInfo()
      .getModuleMap()
      .finishModuleDeclarationScope();

  // Create the AST context and consumer unless this is a preprocessor only
  // action.
  if (!usesPreprocessorOnly()) {
    // Parsing a model file should reuse the existing ASTContext.
    if (!isModelParsingAction())
      CI.createASTContext();

    // For preprocessed files, check if the first line specifies the original
    // source file name with a linemarker.
    std::string PresumedInputFile = InputFile;
    if (Input.isPreprocessed())
      ReadOriginalFileName(CI, PresumedInputFile);

    std::unique_ptr<ASTConsumer> Consumer =
        CreateWrappedASTConsumer(CI, PresumedInputFile);
    if (!Consumer)
      goto failure;

    // FIXME: should not overwrite ASTMutationListener when parsing model files?
    if (!isModelParsingAction())
      CI.getASTContext().setASTMutationListener(Consumer->GetASTMutationListener());

    if (!CI.getPreprocessorOpts().ChainedIncludes.empty()) {
      // Convert headers to PCH and chain them.
      IntrusiveRefCntPtr<ExternalSemaSource> source, FinalReader;
      source = createChainedIncludesSource(CI, FinalReader);
      if (!source)
        goto failure;
      CI.setModuleManager(static_cast<ASTReader *>(FinalReader.get()));
      CI.getASTContext().setExternalSource(source);
    } else if (CI.getLangOpts().Modules ||
               !CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
      // Use PCM or PCH.
      assert(hasPCHSupport() && "This action does not have PCH support!");
      ASTDeserializationListener *DeserialListener =
          Consumer->GetASTDeserializationListener();
      bool DeleteDeserialListener = false;
      if (CI.getPreprocessorOpts().DumpDeserializedPCHDecls) {
        DeserialListener = new DeserializedDeclsDumper(DeserialListener,
                                                       DeleteDeserialListener);
        DeleteDeserialListener = true;
      }
      if (!CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn.empty()) {
        DeserialListener = new DeserializedDeclsChecker(
            CI.getASTContext(),
            CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn,
            DeserialListener, DeleteDeserialListener);
        DeleteDeserialListener = true;
      }
      if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
        CI.createPCHExternalASTSource(
            CI.getPreprocessorOpts().ImplicitPCHInclude,
            CI.getPreprocessorOpts().DisablePCHValidation,
          CI.getPreprocessorOpts().AllowPCHWithCompilerErrors, DeserialListener,
            DeleteDeserialListener);
        if (!CI.getASTContext().getExternalSource())
          goto failure;
      }
      // If modules are enabled, create the module manager before creating
      // any builtins, so that all declarations know that they might be
      // extended by an external source.
      if (CI.getLangOpts().Modules || !CI.hasASTContext() ||
          !CI.getASTContext().getExternalSource()) {
        CI.createModuleManager();
        CI.getModuleManager()->setDeserializationListener(DeserialListener,
                                                        DeleteDeserialListener);
      }
    }

    CI.setASTConsumer(std::move(Consumer));
    if (!CI.hasASTConsumer())
      goto failure;
  }

  // Initialize built-in info as long as we aren't using an external AST
  // source.
  if (CI.getLangOpts().Modules || !CI.hasASTContext() ||
      !CI.getASTContext().getExternalSource()) {
    Preprocessor &PP = CI.getPreprocessor();
    PP.getBuiltinInfo().initializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOpts());
  } else {
    // FIXME: If this is a problem, recover from it by creating a multiplex
    // source.
    assert((!CI.getLangOpts().Modules || CI.getModuleManager()) &&
           "modules enabled but created an external source that "
           "doesn't support modules");
  }

  // If we were asked to load any module files, do so now.
  for (const auto &ModuleFile : CI.getFrontendOpts().ModuleFiles)
    if (!CI.loadModuleFile(ModuleFile))
      goto failure;

  // If there is a layout overrides file, attach an external AST source that
  // provides the layouts from that file.
  if (!CI.getFrontendOpts().OverrideRecordLayoutsFile.empty() &&
      CI.hasASTContext() && !CI.getASTContext().getExternalSource()) {
    IntrusiveRefCntPtr<ExternalASTSource>
      Override(new LayoutOverrideSource(
                     CI.getFrontendOpts().OverrideRecordLayoutsFile));
    CI.getASTContext().setExternalSource(Override);
  }

  return true;

  // If we failed, reset state since the client will not end up calling the
  // matching EndSourceFile().
failure:
  if (HasBegunSourceFile)
    CI.getDiagnosticClient().EndSourceFile();
  CI.clearOutputFiles(/*EraseFiles=*/true);
  CI.getLangOpts().setCompilingModule(LangOptions::CMK_None);
  setCurrentInput(FrontendInputFile());
  setCompilerInstance(nullptr);
  return false;
}
示例#22
0
bool FrontendAction::BeginSourceFile(CompilerInstance &CI,
                                     const FrontendInputFile &Input) {
  assert(!Instance && "Already processing a source file!");
  assert(!Input.isEmpty() && "Unexpected empty filename!");
  setCurrentInput(Input);
  setCompilerInstance(&CI);

  StringRef InputFile = Input.getFile();
  bool HasBegunSourceFile = false;
  if (!BeginInvocation(CI))
    goto failure;

  // AST files follow a very different path, since they share objects via the
  // AST unit.
  if (Input.getKind() == IK_AST) {
    assert(!usesPreprocessorOnly() &&
           "Attempt to pass AST file to preprocessor only action!");
    assert(hasASTFileSupport() &&
           "This action does not have AST file support!");

    IntrusiveRefCntPtr<DiagnosticsEngine> Diags(&CI.getDiagnostics());

    ASTUnit *AST = ASTUnit::LoadFromASTFile(InputFile, Diags,
                                            CI.getFileSystemOpts());
    if (!AST)
      goto failure;

    setCurrentInput(Input, AST);

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), 0);
    HasBegunSourceFile = true;

    // Set the shared objects, these are reset when we finish processing the
    // file, otherwise the CompilerInstance will happily destroy them.
    CI.setFileManager(&AST->getFileManager());
    CI.setSourceManager(&AST->getSourceManager());
    CI.setPreprocessor(&AST->getPreprocessor());
    CI.setASTContext(&AST->getASTContext());

    // Initialize the action.
    if (!BeginSourceFileAction(CI, InputFile))
      goto failure;

    // Create the AST consumer.
    CI.setASTConsumer(CreateWrappedASTConsumer(CI, InputFile));
    if (!CI.hasASTConsumer())
      goto failure;

    return true;
  }

  // Set up the file and source managers, if needed.
  if (!CI.hasFileManager())
    CI.createFileManager();
  if (!CI.hasSourceManager())
    CI.createSourceManager(CI.getFileManager());

  // IR files bypass the rest of initialization.
  if (Input.getKind() == IK_LLVM_IR) {
    assert(hasIRSupport() &&
           "This action does not have IR file support!");

    // Inform the diagnostic client we are processing a source file.
    CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(), 0);
    HasBegunSourceFile = true;

    // Initialize the action.
    if (!BeginSourceFileAction(CI, InputFile))
      goto failure;

    return true;
  }

  // If the implicit PCH include is actually a directory, rather than
  // a single file, search for a suitable PCH file in that directory.
  if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
    FileManager &FileMgr = CI.getFileManager();
    PreprocessorOptions &PPOpts = CI.getPreprocessorOpts();
    StringRef PCHInclude = PPOpts.ImplicitPCHInclude;
    if (const DirectoryEntry *PCHDir = FileMgr.getDirectory(PCHInclude)) {
      llvm::error_code EC;
      SmallString<128> DirNative;
      llvm::sys::path::native(PCHDir->getName(), DirNative);
      bool Found = false;
      for (llvm::sys::fs::directory_iterator Dir(DirNative.str(), EC), DirEnd;
           Dir != DirEnd && !EC; Dir.increment(EC)) {
        // Check whether this is an acceptable AST file.
        if (ASTReader::isAcceptableASTFile(Dir->path(), FileMgr,
                                           CI.getLangOpts(),
                                           CI.getTargetOpts(),
                                           CI.getPreprocessorOpts())) {
          PPOpts.ImplicitPCHInclude = Dir->path();
          Found = true;
          break;
        }
      }

      if (!Found) {
        CI.getDiagnostics().Report(diag::err_fe_no_pch_in_dir) << PCHInclude;
        return true;
      }
    }
  }

  // Set up the preprocessor.
  CI.createPreprocessor();

  // Inform the diagnostic client we are processing a source file.
  CI.getDiagnosticClient().BeginSourceFile(CI.getLangOpts(),
                                           &CI.getPreprocessor());
  HasBegunSourceFile = true;

  // Initialize the action.
  if (!BeginSourceFileAction(CI, InputFile))
    goto failure;

  // Create the AST context and consumer unless this is a preprocessor only
  // action.
  if (!usesPreprocessorOnly()) {
    CI.createASTContext();

    OwningPtr<ASTConsumer> Consumer(
                                   CreateWrappedASTConsumer(CI, InputFile));
    if (!Consumer)
      goto failure;

    CI.getASTContext().setASTMutationListener(Consumer->GetASTMutationListener());
    
    if (!CI.getPreprocessorOpts().ChainedIncludes.empty()) {
      // Convert headers to PCH and chain them.
      OwningPtr<ExternalASTSource> source;
      source.reset(ChainedIncludesSource::create(CI));
      if (!source)
        goto failure;
      CI.setModuleManager(static_cast<ASTReader*>(
         &static_cast<ChainedIncludesSource*>(source.get())->getFinalReader()));
      CI.getASTContext().setExternalSource(source);

    } else if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) {
      // Use PCH.
      assert(hasPCHSupport() && "This action does not have PCH support!");
      ASTDeserializationListener *DeserialListener =
          Consumer->GetASTDeserializationListener();
      if (CI.getPreprocessorOpts().DumpDeserializedPCHDecls)
        DeserialListener = new DeserializedDeclsDumper(DeserialListener);
      if (!CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn.empty())
        DeserialListener = new DeserializedDeclsChecker(CI.getASTContext(),
                         CI.getPreprocessorOpts().DeserializedPCHDeclsToErrorOn,
                                                        DeserialListener);
      CI.createPCHExternalASTSource(
                                CI.getPreprocessorOpts().ImplicitPCHInclude,
                                CI.getPreprocessorOpts().DisablePCHValidation,
                            CI.getPreprocessorOpts().AllowPCHWithCompilerErrors,
                                DeserialListener);
      if (!CI.getASTContext().getExternalSource())
        goto failure;
    }

    CI.setASTConsumer(Consumer.take());
    if (!CI.hasASTConsumer())
      goto failure;
  }

  // Initialize built-in info as long as we aren't using an external AST
  // source.
  if (!CI.hasASTContext() || !CI.getASTContext().getExternalSource()) {
    Preprocessor &PP = CI.getPreprocessor();
    PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
                                           PP.getLangOpts());
  }

  // If there is a layout overrides file, attach an external AST source that
  // provides the layouts from that file.
  if (!CI.getFrontendOpts().OverrideRecordLayoutsFile.empty() && 
      CI.hasASTContext() && !CI.getASTContext().getExternalSource()) {
    OwningPtr<ExternalASTSource> 
      Override(new LayoutOverrideSource(
                     CI.getFrontendOpts().OverrideRecordLayoutsFile));
    CI.getASTContext().setExternalSource(Override);
  }
  
  return true;

  // If we failed, reset state since the client will not end up calling the
  // matching EndSourceFile().
  failure:
  if (isCurrentFileAST()) {
    CI.setASTContext(0);
    CI.setPreprocessor(0);
    CI.setSourceManager(0);
    CI.setFileManager(0);
  }

  if (HasBegunSourceFile)
    CI.getDiagnosticClient().EndSourceFile();
  CI.clearOutputFiles(/*EraseFiles=*/true);
  setCurrentInput(FrontendInputFile());
  setCompilerInstance(0);
  return false;
}
示例#23
0
int main(int argc, char *argv[])
{
#if 0
    vector<string> args;
    args.push_back("tool-executable");
    for (int i = 1; i < argc; ++i) {
        args.push_back(argv[i]);
    }
    parse_with_tool(args);
    return 0;
#endif
    string user_defines;
    for (int i = 1; i < argc; ++i) {
        if (argv[i][0] == '-' && argv[i][1] == 'D') {
            user_defines += "#define ";
            char *def = argv[i]+2;
            char* eq_pos = strchr(def, '=');
            if (eq_pos) {
                user_defines += string(def, eq_pos - def);
                user_defines += " ";
                user_defines += string(def+1);
            } else {
                user_defines += string(def);
            }
            user_defines += "\n";
        }
    }


    if (argc < 2) {
        llvm::errs() << "Usage: mkapi filename [-Ddefine1 -Ddefine2...]\n";
        return 1;
    }

    string file(argv[1]);

    // CompilerInstance will hold the instance of the Clang compiler for us,
    // managing the various objects needed to run the compiler.
    CompilerInstance TheCompInst;
    TheCompInst.createDiagnostics(0, true); //() for clang3.3, (0,0) for clang3.2

    // Initialize target info with the default triple for our platform.
    TargetOptions *TO = new TargetOptions(); //TODO: why on stack crash when dtor called
    TO->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *TI = TargetInfo::CreateTargetInfo(
        TheCompInst.getDiagnostics(), TO);
    TheCompInst.setTarget(TI);

    TheCompInst.createFileManager();
    FileManager &FileMgr = TheCompInst.getFileManager();
    TheCompInst.createSourceManager(FileMgr);
    SourceManager &SourceMgr = TheCompInst.getSourceManager();
    TheCompInst.createPreprocessor();
    TheCompInst.createASTContext();

    if (!user_defines.empty()) {
        clang::Preprocessor &PP = TheCompInst.getPreprocessor();
        PP.setPredefines(PP.getPredefines() + user_defines);
    }


    //cout << "predefines: " << TheCompInst.getPreprocessor().getPredefines() << endl;
    // A Rewriter helps us manage the code rewriting task.
    Rewriter TheRewriter;
    TheRewriter.setSourceMgr(SourceMgr, TheCompInst.getLangOpts());

    // Set the main file handled by the source manager to the input file.
    const FileEntry *FileIn = FileMgr.getFile(file);
    SourceMgr.createMainFileID(FileIn);
    TheCompInst.getDiagnosticClient().BeginSourceFile(
        TheCompInst.getLangOpts(),
        &TheCompInst.getPreprocessor());

    // Create an AST consumer instance which is going to get called by
    // ParseAST.
    MkApiASTConsumer TheConsumer(TheRewriter);

    // Parse the file to AST, registering our consumer as the AST consumer.
    ParseAST(TheCompInst.getPreprocessor(), &TheConsumer,
             TheCompInst.getASTContext()
             , clang::TU_Complete);

    // At this point the rewriter's buffer should be full with the rewritten
    // file contents.
#if 0
    const RewriteBuffer *RewriteBuf =
        TheRewriter.getRewriteBufferFor(SourceMgr.getMainFileID());
    llvm::outs() << string(RewriteBuf->begin(), RewriteBuf->end());
#endif

    std::vector<func_info> fi = TheConsumer.GetFuncInfo();
    stringstream stream;
    for (std::vector<func_info>::const_iterator it = fi.begin(); it != fi.end(); ++it) {
        std::vector<std::string> params = (*it).argv;
        stream << "DEFINE_DLLAPI_ARG(" << params.size() << ", " << (*it).return_type << ", " << (*it).name;
        for (int i = 0; i < params.size(); ++i) {
            stream << ", " << params[i];
        }
        stream << ")" << endl;
    }
    
    cout << stream.str() << endl;
    return 0;
}
int main(int argc, char *argv[])
{
    if (argc != 2) {
        llvm::errs() << "Usage: kcov-branch-identify <filename>\n";
        return 1;
    }

    // CompilerInstance will hold the instance of the Clang compiler for us,
    // managing the various objects needed to run the compiler.
    CompilerInstance TheCompInst;
    
    // Diagnostics manage problems and issues in compile 
    TheCompInst.createDiagnostics(NULL, false);

    // Set target platform options 
    // Initialize target info with the default triple for our platform.
    TargetOptions *TO = new TargetOptions();
    TO->Triple = llvm::sys::getDefaultTargetTriple();
    TargetInfo *TI = TargetInfo::CreateTargetInfo(TheCompInst.getDiagnostics(), TO);
    TheCompInst.setTarget(TI);

    // FileManager supports for file system lookup, file system caching, and directory search management.
    TheCompInst.createFileManager();
    FileManager &FileMgr = TheCompInst.getFileManager();
    
    // SourceManager handles loading and caching of source files into memory.
    TheCompInst.createSourceManager(FileMgr);
    SourceManager &SourceMgr = TheCompInst.getSourceManager();
    //global var  m_srcmgr
    //m_srcmgr = &SourceMgr;

    // Prreprocessor runs within a single source file
    TheCompInst.createPreprocessor();
    
    // ASTContext holds long-lived AST nodes (such as types and decls) .
    TheCompInst.createASTContext();

    // Enable HeaderSearch option
    llvm::IntrusiveRefCntPtr<clang::HeaderSearchOptions> hso( new HeaderSearchOptions());
    HeaderSearch headerSearch(hso,
                              TheCompInst.getFileManager(),
                              TheCompInst.getDiagnostics(),
                              TheCompInst.getLangOpts(),
                              TI);

    // <Warning!!> -- Platform Specific Code lives here
    // This depends on A) that you're running linux and
    // B) that you have the same GCC LIBs installed that I do. 
    /*
    $ gcc -xc -E -v -
    ..
     /usr/local/include
     /usr/lib/gcc/x86_64-linux-gnu/4.4.5/include
     /usr/lib/gcc/x86_64-linux-gnu/4.4.5/include-fixed
     /usr/include
    End of search list.
    */
    const char *include_paths[] = {"/usr/local/include",
                "/usr/lib/gcc/x86_64-linux-gnu/4.4.5/include",
                "/usr/lib/gcc/x86_64-linux-gnu/4.4.5/include-fixed",
                "/usr/include"};

    for (int i=0; i<4; i++) 
        hso->AddPath(include_paths[i], 
                    clang::frontend::Angled, 
                    false, 
                    false);
    // </Warning!!> -- End of Platform Specific Code

    InitializePreprocessor(TheCompInst.getPreprocessor(), 
                  TheCompInst.getPreprocessorOpts(),
                  *hso,
                  TheCompInst.getFrontendOpts());


    // A Rewriter helps us manage the code rewriting task.
    Rewriter TheRewriter;
    TheRewriter.setSourceMgr(SourceMgr, TheCompInst.getLangOpts());

    // Set the main file handled by the source manager to the input file.
    const FileEntry *FileIn = FileMgr.getFile(argv[1]);
    SourceMgr.createMainFileID(FileIn);
    
    // Inform Diagnostics that processing of a source file is beginning. 
    TheCompInst.getDiagnosticClient().BeginSourceFile(TheCompInst.getLangOpts(),&TheCompInst.getPreprocessor());
    
    // Create an AST consumer instance which is going to get called by ParseAST.
    MyASTConsumer TheConsumer(SourceMgr);

    // Parse the file to AST, registering our consumer as the AST consumer.
    ParseAST(TheCompInst.getPreprocessor(), &TheConsumer, TheCompInst.getASTContext());
    TheConsumer.printBranchNum();
    return 0;
}
示例#25
0
int main(int argc, char *argv[] )
{
	type_for_quoting[ "void" ] = 1;
	type_for_quoting[ "bool" ] = 1;
	type_for_quoting[ "char" ] = 1;
	type_for_quoting[ "wchar_t" ] = 1;
	type_for_quoting[ "short" ] = 1;
	type_for_quoting[ "long" ] = 1;
	type_for_quoting[ "size_t" ] = 1;
	type_for_quoting[ "int8_t" ] = 1;
	type_for_quoting[ "int16_t" ] = 1;
	type_for_quoting[ "int32_t" ] = 1;
	type_for_quoting[ "int64_t" ] = 1;
	type_for_quoting[ "uint8_t" ] = 1;
	type_for_quoting[ "uint16_t" ] = 1;
	type_for_quoting[ "uint32_t" ] = 1;
	type_for_quoting[ "uint64_t" ] = 1;
	type_substitutions[ "_Bool" ] = "bool";

	size_t i;
	cl::ParseCommandLineOptions( argc, argv, 
			"ClangDao: Clang-based automatic binding tool for Dao." );

	if (!ignored_arguments.empty()) {
		errs() << "Ignoring the following arguments:";
		copy(ignored_arguments.begin(), ignored_arguments.end(),
				std::ostream_iterator<std::string>(std::cerr, " "));
	}

	CompilerInstance compiler;
	CDaoModule module( & compiler, main_input_file );

	compiler.createDiagnostics();
	//compiler.getInvocation().setLangDefaults(IK_CXX);
	//compiler.getInvocation().setLangDefaults(IK_ObjC);
	CompilerInvocation::CreateFromArgs( compiler.getInvocation(),
			argv + 1, argv + argc, compiler.getDiagnostics() );

	std::shared_ptr<TargetOptions> taropts( new TargetOptions( compiler.getTargetOpts() ) ); 
	compiler.setTarget( TargetInfo::CreateTargetInfo(
				compiler.getDiagnostics(), taropts ) );

	compiler.createFileManager();
	compiler.createSourceManager(compiler.getFileManager());
	compiler.createPreprocessor( TU_Complete );
	compiler.createASTContext();

	std::unique_ptr<ASTConsumer> astConsumer( new CDaoASTConsumer( & compiler, & module ) );
	compiler.setASTConsumer( std::move(astConsumer) );
	//XXX compiler.createSema(false, NULL);
	//compiler.createSema(TU_Module, NULL);
	compiler.createSema(TU_Prefix, NULL);

	Preprocessor & pp = compiler.getPreprocessor();

	//outs()<<pp.getPredefines()<<"\n";
	string builtinDefines = pp.getPredefines();

#if 1
	ClangDao_RemoveDefine( builtinDefines, "#define __APPLE_CC__" );
	ClangDao_RemoveDefine( builtinDefines, "#define __APPLE__" );
	ClangDao_RemoveDefine( builtinDefines, "#define __MACH__" );
	ClangDao_RemoveDefine( builtinDefines, "#define __ENVIRONMENT_MAC_OS_X" );
	ClangDao_RemoveDefine( builtinDefines, "#define OBJC_" );
#endif

	//outs()<<builtinDefines<<"\n";

	std::unique_ptr<PPCallbacks> ppCallbacks( new CDaoPPCallbacks( & compiler, & module ) );
	pp.setPredefines( builtinDefines + "\n" + predefines + "\n#define __CLANGDAO__\n" );
	pp.addPPCallbacks( std::move( ppCallbacks ) );

	InputKind ik = FrontendOptions::getInputKindForExtension( main_input_file );
	compiler.InitializeSourceManager( FrontendInputFile( main_input_file, ik ) );
	compiler.getDiagnosticClient().BeginSourceFile( compiler.getLangOpts(), & pp );
	ParseAST( pp, &compiler.getASTConsumer(), compiler.getASTContext() );
	compiler.getDiagnosticClient().EndSourceFile();

	return module.Generate( output_dir );
}