86a3ef5b03
If specified, when preprocessing, the contents of imported .pcm files will be included in preprocessed output. The resulting preprocessed file can then be compiled standalone without the module sources or .pcm files. llvm-svn: 305116
255 lines
10 KiB
C++
255 lines
10 KiB
C++
//===--- ExecuteCompilerInvocation.cpp ------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file holds ExecuteCompilerInvocation(). It is split into its own file to
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// minimize the impact of pulling in essentially everything else in Clang.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/FrontendTool/Utils.h"
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#include "clang/ARCMigrate/ARCMTActions.h"
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#include "clang/CodeGen/CodeGenAction.h"
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#include "clang/Driver/Options.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/CompilerInvocation.h"
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#include "clang/Frontend/FrontendActions.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/Frontend/FrontendPluginRegistry.h"
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#include "clang/Frontend/Utils.h"
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#include "clang/Rewrite/Frontend/FrontendActions.h"
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#include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
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#include "llvm/Option/OptTable.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace clang;
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using namespace llvm::opt;
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static std::unique_ptr<FrontendAction>
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CreateFrontendBaseAction(CompilerInstance &CI) {
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using namespace clang::frontend;
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StringRef Action("unknown");
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(void)Action;
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switch (CI.getFrontendOpts().ProgramAction) {
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case ASTDeclList: return llvm::make_unique<ASTDeclListAction>();
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case ASTDump: return llvm::make_unique<ASTDumpAction>();
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case ASTPrint: return llvm::make_unique<ASTPrintAction>();
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case ASTView: return llvm::make_unique<ASTViewAction>();
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case DumpRawTokens: return llvm::make_unique<DumpRawTokensAction>();
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case DumpTokens: return llvm::make_unique<DumpTokensAction>();
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case EmitAssembly: return llvm::make_unique<EmitAssemblyAction>();
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case EmitBC: return llvm::make_unique<EmitBCAction>();
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case EmitHTML: return llvm::make_unique<HTMLPrintAction>();
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case EmitLLVM: return llvm::make_unique<EmitLLVMAction>();
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case EmitLLVMOnly: return llvm::make_unique<EmitLLVMOnlyAction>();
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case EmitCodeGenOnly: return llvm::make_unique<EmitCodeGenOnlyAction>();
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case EmitObj: return llvm::make_unique<EmitObjAction>();
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case FixIt: return llvm::make_unique<FixItAction>();
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case GenerateModule:
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return llvm::make_unique<GenerateModuleFromModuleMapAction>();
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case GenerateModuleInterface:
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return llvm::make_unique<GenerateModuleInterfaceAction>();
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case GeneratePCH: return llvm::make_unique<GeneratePCHAction>();
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case GeneratePTH: return llvm::make_unique<GeneratePTHAction>();
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case InitOnly: return llvm::make_unique<InitOnlyAction>();
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case ParseSyntaxOnly: return llvm::make_unique<SyntaxOnlyAction>();
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case ModuleFileInfo: return llvm::make_unique<DumpModuleInfoAction>();
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case VerifyPCH: return llvm::make_unique<VerifyPCHAction>();
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case PluginAction: {
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for (FrontendPluginRegistry::iterator it =
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FrontendPluginRegistry::begin(), ie = FrontendPluginRegistry::end();
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it != ie; ++it) {
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if (it->getName() == CI.getFrontendOpts().ActionName) {
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std::unique_ptr<PluginASTAction> P(it->instantiate());
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if ((P->getActionType() != PluginASTAction::ReplaceAction &&
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P->getActionType() != PluginASTAction::Cmdline) ||
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!P->ParseArgs(CI, CI.getFrontendOpts().PluginArgs[it->getName()]))
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return nullptr;
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return std::move(P);
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}
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}
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CI.getDiagnostics().Report(diag::err_fe_invalid_plugin_name)
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<< CI.getFrontendOpts().ActionName;
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return nullptr;
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}
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case PrintDeclContext: return llvm::make_unique<DeclContextPrintAction>();
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case PrintPreamble: return llvm::make_unique<PrintPreambleAction>();
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case PrintPreprocessedInput: {
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if (CI.getPreprocessorOutputOpts().RewriteIncludes ||
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CI.getPreprocessorOutputOpts().RewriteImports)
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return llvm::make_unique<RewriteIncludesAction>();
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return llvm::make_unique<PrintPreprocessedAction>();
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}
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case RewriteMacros: return llvm::make_unique<RewriteMacrosAction>();
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case RewriteTest: return llvm::make_unique<RewriteTestAction>();
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#ifdef CLANG_ENABLE_OBJC_REWRITER
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case RewriteObjC: return llvm::make_unique<RewriteObjCAction>();
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#else
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case RewriteObjC: Action = "RewriteObjC"; break;
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#endif
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#ifdef CLANG_ENABLE_ARCMT
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case MigrateSource:
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return llvm::make_unique<arcmt::MigrateSourceAction>();
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#else
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case MigrateSource: Action = "MigrateSource"; break;
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#endif
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#ifdef CLANG_ENABLE_STATIC_ANALYZER
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case RunAnalysis: return llvm::make_unique<ento::AnalysisAction>();
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#else
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case RunAnalysis: Action = "RunAnalysis"; break;
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#endif
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case RunPreprocessorOnly: return llvm::make_unique<PreprocessOnlyAction>();
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}
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#if !defined(CLANG_ENABLE_ARCMT) || !defined(CLANG_ENABLE_STATIC_ANALYZER) \
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|| !defined(CLANG_ENABLE_OBJC_REWRITER)
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CI.getDiagnostics().Report(diag::err_fe_action_not_available) << Action;
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return 0;
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#else
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llvm_unreachable("Invalid program action!");
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#endif
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}
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static std::unique_ptr<FrontendAction>
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CreateFrontendAction(CompilerInstance &CI) {
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// Create the underlying action.
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std::unique_ptr<FrontendAction> Act = CreateFrontendBaseAction(CI);
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if (!Act)
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return nullptr;
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const FrontendOptions &FEOpts = CI.getFrontendOpts();
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if (FEOpts.FixAndRecompile) {
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Act = llvm::make_unique<FixItRecompile>(std::move(Act));
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}
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#ifdef CLANG_ENABLE_ARCMT
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if (CI.getFrontendOpts().ProgramAction != frontend::MigrateSource &&
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CI.getFrontendOpts().ProgramAction != frontend::GeneratePCH) {
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// Potentially wrap the base FE action in an ARC Migrate Tool action.
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switch (FEOpts.ARCMTAction) {
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case FrontendOptions::ARCMT_None:
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break;
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case FrontendOptions::ARCMT_Check:
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Act = llvm::make_unique<arcmt::CheckAction>(std::move(Act));
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break;
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case FrontendOptions::ARCMT_Modify:
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Act = llvm::make_unique<arcmt::ModifyAction>(std::move(Act));
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break;
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case FrontendOptions::ARCMT_Migrate:
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Act = llvm::make_unique<arcmt::MigrateAction>(std::move(Act),
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FEOpts.MTMigrateDir,
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FEOpts.ARCMTMigrateReportOut,
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FEOpts.ARCMTMigrateEmitARCErrors);
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break;
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}
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if (FEOpts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
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Act = llvm::make_unique<arcmt::ObjCMigrateAction>(std::move(Act),
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FEOpts.MTMigrateDir,
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FEOpts.ObjCMTAction);
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}
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}
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#endif
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// If there are any AST files to merge, create a frontend action
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// adaptor to perform the merge.
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if (!FEOpts.ASTMergeFiles.empty())
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Act = llvm::make_unique<ASTMergeAction>(std::move(Act),
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FEOpts.ASTMergeFiles);
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return Act;
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}
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bool clang::ExecuteCompilerInvocation(CompilerInstance *Clang) {
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// Honor -help.
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if (Clang->getFrontendOpts().ShowHelp) {
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std::unique_ptr<OptTable> Opts = driver::createDriverOptTable();
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Opts->PrintHelp(llvm::outs(), "clang -cc1",
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"LLVM 'Clang' Compiler: http://clang.llvm.org",
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/*Include=*/ driver::options::CC1Option, /*Exclude=*/ 0);
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return true;
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}
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// Honor -version.
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//
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// FIXME: Use a better -version message?
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if (Clang->getFrontendOpts().ShowVersion) {
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llvm::cl::PrintVersionMessage();
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return true;
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}
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// Load any requested plugins.
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for (unsigned i = 0,
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e = Clang->getFrontendOpts().Plugins.size(); i != e; ++i) {
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const std::string &Path = Clang->getFrontendOpts().Plugins[i];
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std::string Error;
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if (llvm::sys::DynamicLibrary::LoadLibraryPermanently(Path.c_str(), &Error))
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Clang->getDiagnostics().Report(diag::err_fe_unable_to_load_plugin)
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<< Path << Error;
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}
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// Check if any of the loaded plugins replaces the main AST action
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for (FrontendPluginRegistry::iterator it = FrontendPluginRegistry::begin(),
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ie = FrontendPluginRegistry::end();
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it != ie; ++it) {
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std::unique_ptr<PluginASTAction> P(it->instantiate());
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if (P->getActionType() == PluginASTAction::ReplaceAction) {
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Clang->getFrontendOpts().ProgramAction = clang::frontend::PluginAction;
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Clang->getFrontendOpts().ActionName = it->getName();
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break;
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}
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}
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// Honor -mllvm.
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//
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// FIXME: Remove this, one day.
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// This should happen AFTER plugins have been loaded!
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if (!Clang->getFrontendOpts().LLVMArgs.empty()) {
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unsigned NumArgs = Clang->getFrontendOpts().LLVMArgs.size();
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auto Args = llvm::make_unique<const char*[]>(NumArgs + 2);
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Args[0] = "clang (LLVM option parsing)";
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for (unsigned i = 0; i != NumArgs; ++i)
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Args[i + 1] = Clang->getFrontendOpts().LLVMArgs[i].c_str();
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Args[NumArgs + 1] = nullptr;
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llvm::cl::ParseCommandLineOptions(NumArgs + 1, Args.get());
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}
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#ifdef CLANG_ENABLE_STATIC_ANALYZER
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// Honor -analyzer-checker-help.
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// This should happen AFTER plugins have been loaded!
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if (Clang->getAnalyzerOpts()->ShowCheckerHelp) {
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ento::printCheckerHelp(llvm::outs(), Clang->getFrontendOpts().Plugins);
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return true;
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}
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if (Clang->getAnalyzerOpts()->ShowEnabledCheckerList) {
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ento::printEnabledCheckerList(llvm::outs(),
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Clang->getFrontendOpts().Plugins,
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*Clang->getAnalyzerOpts());
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}
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#endif
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// If there were errors in processing arguments, don't do anything else.
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if (Clang->getDiagnostics().hasErrorOccurred())
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return false;
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// Create and execute the frontend action.
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std::unique_ptr<FrontendAction> Act(CreateFrontendAction(*Clang));
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if (!Act)
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return false;
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bool Success = Clang->ExecuteAction(*Act);
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if (Clang->getFrontendOpts().DisableFree)
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BuryPointer(std::move(Act));
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return Success;
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}
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