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https://github.com/capstone-engine/llvm-capstone.git
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bf7fc9c542
This option can be useful for end users who want to know why they ended up with a ton of different variants of the "std" module in their module cache. This problem should go away over time, as we reduce the need for module variants, but it will never go away entirely. llvm-svn: 178148
241 lines
8.5 KiB
C++
241 lines
8.5 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/OptTable.h"
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#include "clang/Driver/Option.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/Rewrite/Frontend/FrontendActions.h"
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#include "clang/StaticAnalyzer/Frontend/FrontendActions.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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static FrontendAction *CreateFrontendBaseAction(CompilerInstance &CI) {
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using namespace clang::frontend;
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StringRef Action("unknown");
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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 ASTDumpXML: return new ASTDumpXMLAction();
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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 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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OwningPtr<PluginASTAction> P(it->instantiate());
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if (!P->ParseArgs(CI, CI.getFrontendOpts().PluginArgs))
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return 0;
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return P.take();
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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 0;
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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 0;
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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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// 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 & ~FrontendOptions::ObjCMT_Literals,
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FEOpts.ObjCMTAction & ~FrontendOptions::ObjCMT_Subscripting);
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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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OwningPtr<driver::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,
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/*Exclude=*/0);
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return 0;
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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 0;
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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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const char **Args = new 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] = 0;
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llvm::cl::ParseCommandLineOptions(NumArgs + 1, Args);
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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 0;
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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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OwningPtr<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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Act.take();
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return Success;
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}
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