245 lines
8.7 KiB
C++
245 lines
8.7 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 FrontendAction *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 new ASTDeclListAction();
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case ASTDump: return new ASTDumpAction();
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case ASTPrint: return new ASTPrintAction();
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case ASTView: return new ASTViewAction();
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case DumpRawTokens: return new DumpRawTokensAction();
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case DumpTokens: return new DumpTokensAction();
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case EmitAssembly: return new EmitAssemblyAction();
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case EmitBC: return new EmitBCAction();
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#ifdef CLANG_ENABLE_REWRITER
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case EmitHTML: return new HTMLPrintAction();
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#else
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case EmitHTML: Action = "EmitHTML"; break;
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#endif
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case EmitLLVM: return new EmitLLVMAction();
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case EmitLLVMOnly: return new EmitLLVMOnlyAction();
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case EmitCodeGenOnly: return new EmitCodeGenOnlyAction();
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case EmitObj: return new EmitObjAction();
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#ifdef CLANG_ENABLE_REWRITER
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case FixIt: return new FixItAction();
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#else
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case FixIt: Action = "FixIt"; break;
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#endif
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case GenerateModule: return new GenerateModuleAction;
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case GeneratePCH: return new GeneratePCHAction;
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case GeneratePTH: return new GeneratePTHAction();
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case InitOnly: return new InitOnlyAction();
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case ParseSyntaxOnly: return new SyntaxOnlyAction();
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case ModuleFileInfo: return new DumpModuleInfoAction();
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case VerifyPCH: return new 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->ParseArgs(CI, CI.getFrontendOpts().PluginArgs))
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return nullptr;
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return P.release();
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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 new DeclContextPrintAction();
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case PrintPreamble: return new PrintPreambleAction();
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case PrintPreprocessedInput: {
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if (CI.getPreprocessorOutputOpts().RewriteIncludes) {
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#ifdef CLANG_ENABLE_REWRITER
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return new RewriteIncludesAction();
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#else
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Action = "RewriteIncludesAction";
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break;
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#endif
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}
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return new PrintPreprocessedAction();
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}
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#ifdef CLANG_ENABLE_REWRITER
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case RewriteMacros: return new RewriteMacrosAction();
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case RewriteObjC: return new RewriteObjCAction();
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case RewriteTest: return new RewriteTestAction();
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#else
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case RewriteMacros: Action = "RewriteMacros"; break;
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case RewriteObjC: Action = "RewriteObjC"; break;
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case RewriteTest: Action = "RewriteTest"; break;
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#endif
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#ifdef CLANG_ENABLE_ARCMT
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case MigrateSource: return new 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 new 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 new 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_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 FrontendAction *CreateFrontendAction(CompilerInstance &CI) {
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// Create the underlying action.
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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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#ifdef CLANG_ENABLE_REWRITER
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if (FEOpts.FixAndRecompile) {
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Act = new FixItRecompile(Act);
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}
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#endif
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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 = new arcmt::CheckAction(Act);
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break;
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case FrontendOptions::ARCMT_Modify:
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Act = new arcmt::ModifyAction(Act);
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break;
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case FrontendOptions::ARCMT_Migrate:
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Act = new arcmt::MigrateAction(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 = new arcmt::ObjCMigrateAction(Act, 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 = new ASTMergeAction(Act, 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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// 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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#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(Act.release());
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return Success;
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}
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