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+++ /dev/null
-//===--- clang.cpp - C-Language Front-end ---------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This utility may be invoked in the following manner:
-// clang-cc --help - Output help info.
-// clang-cc [options] - Read from stdin.
-// clang-cc [options] file - Read from "file".
-// clang-cc [options] file1 file2 - Read these files.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Basic/FileManager.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Basic/TargetInfo.h"
-#include "clang/Basic/Version.h"
-#include "clang/Driver/Arg.h"
-#include "clang/Driver/ArgList.h"
-#include "clang/Driver/CC1Options.h"
-#include "clang/Driver/DriverDiagnostic.h"
-#include "clang/Driver/OptTable.h"
-#include "clang/Frontend/CompilerInstance.h"
-#include "clang/Frontend/CompilerInvocation.h"
-#include "clang/Frontend/FrontendActions.h"
-#include "clang/Frontend/FrontendDiagnostic.h"
-#include "clang/Frontend/FrontendPluginRegistry.h"
-#include "clang/Frontend/TextDiagnosticBuffer.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-#include "clang/Frontend/VerifyDiagnosticsClient.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/System/DynamicLibrary.h"
-#include "llvm/System/Host.h"
-#include "llvm/System/Path.h"
-#include "llvm/System/Signals.h"
-#include "llvm/Target/TargetSelect.h"
-#include <cstdio>
-using namespace clang;
-
-//===----------------------------------------------------------------------===//
-// Main driver
-//===----------------------------------------------------------------------===//
-
-void LLVMErrorHandler(void *UserData, const std::string &Message) {
- Diagnostic &Diags = *static_cast<Diagnostic*>(UserData);
-
- Diags.Report(diag::err_fe_error_backend) << Message;
-
- // We cannot recover from llvm errors.
- exit(1);
-}
-
-static FrontendAction *CreateFrontendAction(CompilerInstance &CI) {
- using namespace clang::frontend;
-
- switch (CI.getFrontendOpts().ProgramAction) {
- default:
- llvm::llvm_unreachable("Invalid program action!");
-
- case ASTDump: return new ASTDumpAction();
- case ASTPrint: return new ASTPrintAction();
- case ASTPrintXML: return new ASTPrintXMLAction();
- case ASTView: return new ASTViewAction();
- case DumpRawTokens: return new DumpRawTokensAction();
- case DumpRecordLayouts: return new DumpRecordAction();
- case DumpTokens: return new DumpTokensAction();
- case EmitAssembly: return new EmitAssemblyAction();
- case EmitBC: return new EmitBCAction();
- case EmitHTML: return new HTMLPrintAction();
- case EmitLLVM: return new EmitLLVMAction();
- case EmitLLVMOnly: return new EmitLLVMOnlyAction();
- case FixIt: return new FixItAction();
- case GeneratePCH: return new GeneratePCHAction();
- case GeneratePTH: return new GeneratePTHAction();
- case InheritanceView: return new InheritanceViewAction();
- case ParseNoop: return new ParseOnlyAction();
- case ParsePrintCallbacks: return new PrintParseAction();
- case ParseSyntaxOnly: return new SyntaxOnlyAction();
-
- case PluginAction: {
- if (CI.getFrontendOpts().ActionName == "help") {
- llvm::errs() << "clang-cc plugins:\n";
- for (FrontendPluginRegistry::iterator it =
- FrontendPluginRegistry::begin(),
- ie = FrontendPluginRegistry::end();
- it != ie; ++it)
- llvm::errs() << " " << it->getName() << " - " << it->getDesc() << "\n";
- return 0;
- }
-
- for (FrontendPluginRegistry::iterator it =
- FrontendPluginRegistry::begin(), ie = FrontendPluginRegistry::end();
- it != ie; ++it) {
- if (it->getName() == CI.getFrontendOpts().ActionName)
- return it->instantiate();
- }
-
- CI.getDiagnostics().Report(diag::err_fe_invalid_plugin_name)
- << CI.getFrontendOpts().ActionName;
- return 0;
- }
-
- case PrintDeclContext: return new DeclContextPrintAction();
- case PrintPreprocessedInput: return new PrintPreprocessedAction();
- case RewriteBlocks: return new RewriteBlocksAction();
- case RewriteMacros: return new RewriteMacrosAction();
- case RewriteObjC: return new RewriteObjCAction();
- case RewriteTest: return new RewriteTestAction();
- case RunAnalysis: return new AnalysisAction();
- case RunPreprocessorOnly: return new PreprocessOnlyAction();
- }
-}
-
-static int cc1_main(Diagnostic &Diags,
- const char **ArgBegin, const char **ArgEnd,
- const char *Argv0, void *MainAddr) {
- using namespace clang::driver;
-
- llvm::errs() << "cc1 argv:";
- for (const char **i = ArgBegin; i != ArgEnd; ++i)
- llvm::errs() << " \"" << *i << '"';
- llvm::errs() << "\n";
-
- // Parse the arguments.
- OptTable *Opts = createCC1OptTable();
- unsigned MissingArgIndex, MissingArgCount;
- InputArgList *Args = Opts->ParseArgs(ArgBegin, ArgEnd,
- MissingArgIndex, MissingArgCount);
-
- // Check for missing argument error.
- if (MissingArgCount)
- Diags.Report(clang::diag::err_drv_missing_argument)
- << Args->getArgString(MissingArgIndex) << MissingArgCount;
-
- // Dump the parsed arguments.
- llvm::errs() << "cc1 parsed options:\n";
- for (ArgList::const_iterator it = Args->begin(), ie = Args->end();
- it != ie; ++it)
- (*it)->dump();
-
- // Create a compiler invocation.
- llvm::errs() << "cc1 creating invocation.\n";
- CompilerInvocation Invocation;
- CompilerInvocation::CreateFromArgs(Invocation, ArgBegin, ArgEnd,
- Argv0, MainAddr, Diags);
-
- // Convert the invocation back to argument strings.
- std::vector<std::string> InvocationArgs;
- Invocation.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";
-
- // Convert those arguments to another invocation, and check that we got the
- // same thing.
- CompilerInvocation Invocation2;
- CompilerInvocation::CreateFromArgs(Invocation2, Invocation2Args.begin(),
- Invocation2Args.end(), Argv0, MainAddr,
- Diags);
-
- // FIXME: Implement CompilerInvocation comparison.
- if (true) {
- //llvm::errs() << "warning: Invocations differ!\n";
-
- std::vector<std::string> Invocation2Args;
- Invocation2.toArgs(Invocation2Args);
- llvm::errs() << "invocation2 argv:";
- for (unsigned i = 0, e = Invocation2Args.size(); i != e; ++i)
- llvm::errs() << " \"" << Invocation2Args[i] << '"';
- llvm::errs() << "\n";
- }
-
- return 0;
-}
-
-int main(int argc, char **argv) {
- llvm::sys::PrintStackTraceOnErrorSignal();
- llvm::PrettyStackTraceProgram X(argc, argv);
- CompilerInstance Clang(&llvm::getGlobalContext(), false);
-
- // Run clang -cc1 test.
- if (argc > 1 && llvm::StringRef(argv[1]) == "-cc1") {
- TextDiagnosticPrinter DiagClient(llvm::errs(), DiagnosticOptions());
- Diagnostic Diags(&DiagClient);
- return cc1_main(Diags, (const char**) argv + 2, (const char**) argv + argc,
- argv[0], (void*) (intptr_t) LLVMErrorHandler);
- }
-
- // Initialize targets first, so that --version shows registered targets.
- llvm::InitializeAllTargets();
- llvm::InitializeAllAsmPrinters();
-
- // Buffer diagnostics from argument parsing so that we can output them using a
- // well formed diagnostic object.
- TextDiagnosticBuffer DiagsBuffer;
- Diagnostic Diags(&DiagsBuffer);
- CompilerInvocation::CreateFromArgs(Clang.getInvocation(),
- (const char**) argv + 1,
- (const char**) argv + argc, argv[0],
- (void*)(intptr_t) LLVMErrorHandler,
- Diags);
-
- // Honor -help.
- if (Clang.getInvocation().getFrontendOpts().ShowHelp) {
- llvm::OwningPtr<driver::OptTable> Opts(driver::createCC1OptTable());
- Opts->PrintHelp(llvm::outs(), "clang-cc",
- "LLVM 'Clang' Compiler: http://clang.llvm.org");
- return 0;
- }
-
- // Honor -version.
- //
- // FIXME: Use a better -version message?
- if (Clang.getInvocation().getFrontendOpts().ShowVersion) {
- llvm::cl::PrintVersionMessage();
- return 0;
- }
-
- // Create the actual diagnostics engine.
- Clang.createDiagnostics(argc, argv);
- if (!Clang.hasDiagnostics())
- return 1;
-
- // Set an error handler, so that any LLVM backend diagnostics go through our
- // error handler.
- llvm::llvm_install_error_handler(LLVMErrorHandler,
- static_cast<void*>(&Clang.getDiagnostics()));
-
- DiagsBuffer.FlushDiagnostics(Clang.getDiagnostics());
-
- // Load any requested plugins.
- for (unsigned i = 0,
- e = Clang.getFrontendOpts().Plugins.size(); i != e; ++i) {
- const std::string &Path = Clang.getFrontendOpts().Plugins[i];
- std::string Error;
- if (llvm::sys::DynamicLibrary::LoadLibraryPermanently(Path.c_str(), &Error))
- Diags.Report(diag::err_fe_unable_to_load_plugin) << Path << Error;
- }
-
- // If there were any errors in processing arguments, exit now.
- if (Clang.getDiagnostics().getNumErrors())
- return 1;
-
- // Create the target instance.
- Clang.setTarget(TargetInfo::CreateTargetInfo(Clang.getDiagnostics(),
- Clang.getTargetOpts()));
- if (!Clang.hasTarget())
- return 1;
-
- // Inform the target of the language options
- //
- // FIXME: We shouldn't need to do this, the target should be immutable once
- // created. This complexity should be lifted elsewhere.
- Clang.getTarget().setForcedLangOptions(Clang.getLangOpts());
-
- // Validate/process some options
- if (Clang.getHeaderSearchOpts().Verbose)
- llvm::errs() << "clang-cc version " CLANG_VERSION_STRING
- << " based upon " << PACKAGE_STRING
- << " hosted on " << llvm::sys::getHostTriple() << "\n";
-
- if (Clang.getFrontendOpts().ShowTimers)
- Clang.createFrontendTimer();
-
- for (unsigned i = 0, e = Clang.getFrontendOpts().Inputs.size(); i != e; ++i) {
- const std::string &InFile = Clang.getFrontendOpts().Inputs[i].second;
-
- // If we aren't using an AST file, setup the file and source managers and
- // the preprocessor.
- bool IsAST =
- Clang.getFrontendOpts().Inputs[i].first == FrontendOptions::IK_AST;
- if (!IsAST) {
- if (!i) {
- // Create a file manager object to provide access to and cache the
- // filesystem.
- Clang.createFileManager();
-
- // Create the source manager.
- Clang.createSourceManager();
- } else {
- // Reset the ID tables if we are reusing the SourceManager.
- Clang.getSourceManager().clearIDTables();
- }
-
- // Create the preprocessor.
- Clang.createPreprocessor();
- }
-
- llvm::OwningPtr<FrontendAction> Act(CreateFrontendAction(Clang));
- if (!Act)
- break;
-
- if (Act->BeginSourceFile(Clang, InFile, IsAST)) {
- Act->Execute();
- Act->EndSourceFile();
- }
- }
-
- if (Clang.getDiagnosticOpts().ShowCarets)
- if (unsigned NumDiagnostics = Clang.getDiagnostics().getNumDiagnostics())
- fprintf(stderr, "%d diagnostic%s generated.\n", NumDiagnostics,
- (NumDiagnostics == 1 ? "" : "s"));
-
- if (Clang.getFrontendOpts().ShowStats) {
- Clang.getFileManager().PrintStats();
- fprintf(stderr, "\n");
- }
-
- // Return the appropriate status when verifying diagnostics.
- //
- // FIXME: If we could make getNumErrors() do the right thing, we wouldn't need
- // this.
- if (Clang.getDiagnosticOpts().VerifyDiagnostics)
- return static_cast<VerifyDiagnosticsClient&>(
- Clang.getDiagnosticClient()).HadErrors();
-
- // Managed static deconstruction. Useful for making things like
- // -time-passes usable.
- llvm::llvm_shutdown();
-
- return (Clang.getDiagnostics().getNumErrors() != 0);
-}
-
projects / clang / commitdiff