75b3a4b507
This builds on the support being added to LLVM to import and export
registries from DLLs. This will allow us to pick up the registry
entries added in the DLL's copy of FrontendPluginRegistry.
This will allow us to use plugins on Windows using:
$ clang-cl -Xclang -load -Xclang plugin.dll \
-Xclang -add-plugin -Xclang foo
llvm-svn: 260265
239 lines
9.3 KiB
C++
239 lines
9.3 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: return llvm::make_unique<GenerateModuleAction>();
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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->ParseArgs(CI, CI.getFrontendOpts().PluginArgs))
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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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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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llvm::sys::DynamicLibrary DL(
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llvm::sys::DynamicLibrary::getPermanentLibrary(Path.c_str(), &Error));
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if (DL.isValid()) {
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// On Windows, we need to import the plugin front-end action
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// dynamically.
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LLVM_IMPORT_REGISTRY(FrontendPluginRegistry, DL);
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} else {
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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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}
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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(std::move(Act));
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return Success;
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}
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