285 lines
11 KiB
C++
285 lines
11 KiB
C++
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//===--- ExecuteCompilerInvocation.cpp ------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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/ARCMigrate/ARCMTActions.h"
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#include "clang/CodeGen/CodeGenAction.h"
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#include "clang/Config/config.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/FrontendTool/Utils.h"
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#include "clang/Rewrite/Frontend/FrontendActions.h"
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#include "clang/StaticAnalyzer/Frontend/AnalyzerHelpFlags.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/BuryPointer.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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namespace clang {
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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 std::make_unique<ASTDeclListAction>();
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case ASTDump: return std::make_unique<ASTDumpAction>();
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case ASTPrint: return std::make_unique<ASTPrintAction>();
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case ASTView: return std::make_unique<ASTViewAction>();
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case DumpCompilerOptions:
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return std::make_unique<DumpCompilerOptionsAction>();
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case DumpRawTokens: return std::make_unique<DumpRawTokensAction>();
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case DumpTokens: return std::make_unique<DumpTokensAction>();
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case EmitAssembly: return std::make_unique<EmitAssemblyAction>();
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case EmitBC: return std::make_unique<EmitBCAction>();
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case EmitHTML: return std::make_unique<HTMLPrintAction>();
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case EmitLLVM: return std::make_unique<EmitLLVMAction>();
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case EmitLLVMOnly: return std::make_unique<EmitLLVMOnlyAction>();
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case EmitCodeGenOnly: return std::make_unique<EmitCodeGenOnlyAction>();
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case EmitObj: return std::make_unique<EmitObjAction>();
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case FixIt: return std::make_unique<FixItAction>();
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case GenerateModule:
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return std::make_unique<GenerateModuleFromModuleMapAction>();
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case GenerateModuleInterface:
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return std::make_unique<GenerateModuleInterfaceAction>();
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case GenerateHeaderModule:
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return std::make_unique<GenerateHeaderModuleAction>();
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case GeneratePCH: return std::make_unique<GeneratePCHAction>();
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case GenerateInterfaceStubs:
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return std::make_unique<GenerateInterfaceStubsAction>();
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case InitOnly: return std::make_unique<InitOnlyAction>();
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case ParseSyntaxOnly: return std::make_unique<SyntaxOnlyAction>();
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case ModuleFileInfo: return std::make_unique<DumpModuleInfoAction>();
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case VerifyPCH: return std::make_unique<VerifyPCHAction>();
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case TemplightDump: return std::make_unique<TemplightDumpAction>();
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case PluginAction: {
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for (const FrontendPluginRegistry::entry &Plugin :
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FrontendPluginRegistry::entries()) {
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if (Plugin.getName() == CI.getFrontendOpts().ActionName) {
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std::unique_ptr<PluginASTAction> P(Plugin.instantiate());
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if ((P->getActionType() != PluginASTAction::ReplaceAction &&
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P->getActionType() != PluginASTAction::Cmdline) ||
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!P->ParseArgs(
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CI,
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CI.getFrontendOpts().PluginArgs[std::string(Plugin.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 PrintPreamble: return std::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 std::make_unique<RewriteIncludesAction>();
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return std::make_unique<PrintPreprocessedAction>();
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}
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case RewriteMacros: return std::make_unique<RewriteMacrosAction>();
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case RewriteTest: return std::make_unique<RewriteTestAction>();
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#if CLANG_ENABLE_OBJC_REWRITER
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case RewriteObjC: return std::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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#if CLANG_ENABLE_ARCMT
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case MigrateSource:
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return std::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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#if CLANG_ENABLE_STATIC_ANALYZER
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case RunAnalysis: return std::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 std::make_unique<PreprocessOnlyAction>();
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case PrintDependencyDirectivesSourceMinimizerOutput:
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return std::make_unique<PrintDependencyDirectivesSourceMinimizerAction>();
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}
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#if !CLANG_ENABLE_ARCMT || !CLANG_ENABLE_STATIC_ANALYZER \
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|| !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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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 = std::make_unique<FixItRecompile>(std::move(Act));
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}
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#if 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 = std::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 = std::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 = std::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 = std::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 = std::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 ExecuteCompilerInvocation(CompilerInstance *Clang) {
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// Honor -help.
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if (Clang->getFrontendOpts().ShowHelp) {
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driver::getDriverOptTable().PrintHelp(
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llvm::outs(), "clang -cc1 [options] file...",
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"LLVM 'Clang' Compiler: http://clang.llvm.org",
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/*Include=*/driver::options::CC1Option,
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/*Exclude=*/0, /*ShowAllAliases=*/false);
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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 (const std::string &Path : Clang->getFrontendOpts().Plugins) {
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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 (const FrontendPluginRegistry::entry &Plugin :
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FrontendPluginRegistry::entries()) {
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std::unique_ptr<PluginASTAction> P(Plugin.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 = Plugin.getName().str();
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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 = std::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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#if CLANG_ENABLE_STATIC_ANALYZER
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// These should happen AFTER plugins have been loaded!
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AnalyzerOptions &AnOpts = *Clang->getAnalyzerOpts();
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// Honor -analyzer-checker-help and -analyzer-checker-help-hidden.
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if (AnOpts.ShowCheckerHelp || AnOpts.ShowCheckerHelpAlpha ||
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AnOpts.ShowCheckerHelpDeveloper) {
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ento::printCheckerHelp(llvm::outs(), *Clang);
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return true;
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}
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// Honor -analyzer-checker-option-help.
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if (AnOpts.ShowCheckerOptionList || AnOpts.ShowCheckerOptionAlphaList ||
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AnOpts.ShowCheckerOptionDeveloperList) {
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ento::printCheckerConfigList(llvm::outs(), *Clang);
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return true;
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}
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// Honor -analyzer-list-enabled-checkers.
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if (AnOpts.ShowEnabledCheckerList) {
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ento::printEnabledCheckerList(llvm::outs(), *Clang);
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return true;
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}
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// Honor -analyzer-config-help.
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if (AnOpts.ShowConfigOptionsList) {
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ento::printAnalyzerConfigList(llvm::outs());
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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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llvm::BuryPointer(std::move(Act));
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return Success;
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}
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} // namespace clang
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