AnalysisConsumer.cpp revision 9c378f705405d37f49795d5e915989de774fe11f
188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===--- AnalysisConsumer.cpp - ASTConsumer for running Analyses ----------===// 288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// 388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// The LLVM Compiler Infrastructure 488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// 588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// This file is distributed under the University of Illinois Open Source 688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// License. See LICENSE.TXT for details. 788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// 888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// 1088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// "Meta" ASTConsumer for running different source analyses. 1188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// 1288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 1388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 1488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "AnalysisConsumer.h" 1588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/AST/ASTConsumer.h" 1688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/AST/Decl.h" 1788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/AST/DeclCXX.h" 1888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/AST/DeclObjC.h" 1988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/AST/ParentMap.h" 2088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Analysis/CFG.h" 2188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Frontend/CheckerRegistration.h" 2288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/CheckerManager.h" 2388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Checkers/LocalCheckers.h" 2488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h" 2588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h" 2688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h" 2788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h" 2888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/PathSensitive/TransferFuncs.h" 2988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/StaticAnalyzer/Core/PathDiagnosticClients.h" 3088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 3188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Basic/FileManager.h" 3288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Basic/SourceManager.h" 3388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Frontend/AnalyzerOptions.h" 3488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Lex/Preprocessor.h" 3588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "llvm/Support/raw_ostream.h" 3688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "llvm/Support/Path.h" 3788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "llvm/Support/Program.h" 3888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "llvm/ADT/OwningPtr.h" 3988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 4088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comusing namespace clang; 4188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comusing namespace ento; 4288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 4388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comstatic ExplodedNode::Auditor* CreateUbiViz(); 4488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 4588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 4688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// Special PathDiagnosticClients. 4788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 4888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 4988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comstatic PathDiagnosticClient* 5088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comcreatePlistHTMLDiagnosticClient(const std::string& prefix, 5188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com const Preprocessor &PP) { 5288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com PathDiagnosticClient *PD = 5388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com createHTMLDiagnosticClient(llvm::sys::path::parent_path(prefix), PP); 5488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com return createPlistDiagnosticClient(prefix, PP, PD); 5588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com} 5688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 5788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 5888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// AnalysisConsumer declaration. 5988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 6088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 6188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comnamespace { 6288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 6388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comclass AnalysisConsumer : public ASTConsumer { 6488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.compublic: 6588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ASTContext *Ctx; 6688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com const Preprocessor &PP; 6788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com const std::string OutDir; 6888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com AnalyzerOptions Opts; 6988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 7088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // PD is owned by AnalysisManager. 7188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com PathDiagnosticClient *PD; 7288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 7388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com StoreManagerCreator CreateStoreMgr; 7488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ConstraintManagerCreator CreateConstraintMgr; 7588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 7688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::OwningPtr<CheckerManager> checkerMgr; 7788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::OwningPtr<AnalysisManager> Mgr; 7888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 7988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com AnalysisConsumer(const Preprocessor& pp, 8088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com const std::string& outdir, 8188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com const AnalyzerOptions& opts) 8288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com : Ctx(0), PP(pp), OutDir(outdir), 8388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts(opts), PD(0) { 8488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com DigestAnalyzerOptions(); 8588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 8688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 8788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com void DigestAnalyzerOptions() { 8888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Create the PathDiagnosticClient. 8988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (!OutDir.empty()) { 9088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com switch (Opts.AnalysisDiagOpt) { 9188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com default: 9288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATEFN, AUTOCREATE) \ 9388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case PD_##NAME: PD = CREATEFN(OutDir, PP); break; 9488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Frontend/Analyses.def" 9588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 9688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } else if (Opts.AnalysisDiagOpt == PD_TEXT) { 9788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Create the text client even without a specified output file since 9888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // it just uses diagnostic notes. 9988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com PD = createTextPathDiagnosticClient("", PP); 10088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 10188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 10288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Create the analyzer component creators. 10388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com switch (Opts.AnalysisStoreOpt) { 10488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com default: 10588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com assert(0 && "Unknown store manager."); 10688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATEFN) \ 10788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case NAME##Model: CreateStoreMgr = CREATEFN; break; 10888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Frontend/Analyses.def" 10988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 11088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 11188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com switch (Opts.AnalysisConstraintsOpt) { 11288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com default: 11388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com assert(0 && "Unknown store manager."); 11488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATEFN) \ 11588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case NAME##Model: CreateConstraintMgr = CREATEFN; break; 11688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com#include "clang/Frontend/Analyses.def" 11788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 11888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 11988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 12088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com void DisplayFunction(const Decl *D) { 12188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (!Opts.AnalyzerDisplayProgress) 12288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com return; 12388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 12488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com SourceManager &SM = Mgr->getASTContext().getSourceManager(); 12588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com PresumedLoc Loc = SM.getPresumedLoc(D->getLocation()); 12688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (Loc.isValid()) { 12788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::errs() << "ANALYZE: " << Loc.getFilename(); 12888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 12988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (isa<FunctionDecl>(D) || isa<ObjCMethodDecl>(D)) { 13088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com const NamedDecl *ND = cast<NamedDecl>(D); 13188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::errs() << ' ' << ND << '\n'; 13288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 13388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com else if (isa<BlockDecl>(D)) { 13488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::errs() << ' ' << "block(line:" << Loc.getLine() << ",col:" 13588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com << Loc.getColumn() << '\n'; 13688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 13788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 13888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Selector S = MD->getSelector(); 13988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::errs() << ' ' << S.getAsString(); 14088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 14188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 14288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 14388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 14488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com virtual void Initialize(ASTContext &Context) { 14588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Ctx = &Context; 14688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr.reset(registerCheckers(Opts, PP.getLangOptions(), 14788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com PP.getDiagnostics())); 14888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Mgr.reset(new AnalysisManager(*Ctx, PP.getDiagnostics(), 14988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com PP.getLangOptions(), PD, 15088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com CreateStoreMgr, CreateConstraintMgr, 15188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr.get(), 15288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com /* Indexer */ 0, 15388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.MaxNodes, Opts.MaxLoop, 15488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.VisualizeEGDot, Opts.VisualizeEGUbi, 15588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.PurgeDead, Opts.EagerlyAssume, 15688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.TrimGraph, Opts.InlineCall, 15788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.UnoptimizedCFG, Opts.CFGAddImplicitDtors, 15888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.CFGAddInitializers, 15988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.EagerlyTrimEGraph)); 16088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 16188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 16288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com virtual void HandleTranslationUnit(ASTContext &C); 16388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com void HandleDeclContext(ASTContext &C, DeclContext *dc); 16488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 16588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com void HandleCode(Decl *D); 16688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com}; 16788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com} // end anonymous namespace 16888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 16988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 17088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// AnalysisConsumer implementation. 17188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 17288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 17388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comvoid AnalysisConsumer::HandleDeclContext(ASTContext &C, DeclContext *dc) { 17488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com BugReporter BR(*Mgr); 17588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com for (DeclContext::decl_iterator I = dc->decls_begin(), E = dc->decls_end(); 17688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com I != E; ++I) { 17788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Decl *D = *I; 17888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr->runCheckersOnASTDecl(D, *Mgr, BR); 17988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 18088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com switch (D->getKind()) { 18188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::Namespace: { 18288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com HandleDeclContext(C, cast<NamespaceDecl>(D)); 18388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com break; 18488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 18588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::CXXConstructor: 18688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::CXXDestructor: 18788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::CXXConversion: 18888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::CXXMethod: 18988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::Function: { 19088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com FunctionDecl *FD = cast<FunctionDecl>(D); 19188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // We skip function template definitions, as their semantics is 19288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // only determined when they are instantiated. 19388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (FD->isThisDeclarationADefinition() && 19488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com !FD->isDependentContext()) { 19588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (!Opts.AnalyzeSpecificFunction.empty() && 19688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com FD->getDeclName().getAsString() != Opts.AnalyzeSpecificFunction) 19788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com break; 19888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com DisplayFunction(FD); 19988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com HandleCode(FD); 20088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 20188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com break; 20288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 20388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 20488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::ObjCCategoryImpl: 20588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com case Decl::ObjCImplementation: { 20688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ObjCImplDecl *ID = cast<ObjCImplDecl>(*I); 20788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com HandleCode(ID); 20888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 20988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com for (ObjCContainerDecl::method_iterator MI = ID->meth_begin(), 21088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ME = ID->meth_end(); MI != ME; ++MI) { 21188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr->runCheckersOnASTDecl(*MI, *Mgr, BR); 21288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 21388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if ((*MI)->isThisDeclarationADefinition()) { 21488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (!Opts.AnalyzeSpecificFunction.empty() && 21588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Opts.AnalyzeSpecificFunction != 21688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com (*MI)->getSelector().getAsString()) 21788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com break; 21888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com DisplayFunction(*MI); 21988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com HandleCode(*MI); 22088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 22188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 22288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com break; 22388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 22488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 22588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com default: 22688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com break; 22788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 22888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 22988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com} 23088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 23188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comvoid AnalysisConsumer::HandleTranslationUnit(ASTContext &C) { 23288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com BugReporter BR(*Mgr); 23388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com TranslationUnitDecl *TU = C.getTranslationUnitDecl(); 23488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr->runCheckersOnASTDecl(TU, *Mgr, BR); 23588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com HandleDeclContext(C, TU); 23688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 23788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // After all decls handled, run checkers on the entire TranslationUnit. 23888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr->runCheckersOnEndOfTranslationUnit(TU, *Mgr, BR); 23988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 24088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Explicitly destroy the PathDiagnosticClient. This will flush its output. 24188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // FIXME: This should be replaced with something that doesn't rely on 24288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // side-effects in PathDiagnosticClient's destructor. This is required when 24388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // used with option -disable-free. 24488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Mgr.reset(NULL); 24588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com} 24688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 24788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comstatic void FindBlocks(DeclContext *D, SmallVectorImpl<Decl*> &WL) { 24888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) 24988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com WL.push_back(BD); 25088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 25188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com for (DeclContext::decl_iterator I = D->decls_begin(), E = D->decls_end(); 25288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com I!=E; ++I) 25388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (DeclContext *DC = dyn_cast<DeclContext>(*I)) 25488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com FindBlocks(DC, WL); 25588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com} 25688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 25788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comstatic void ActionObjCMemChecker(AnalysisConsumer &C, AnalysisManager& mgr, 25888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Decl *D); 25988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 26088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comvoid AnalysisConsumer::HandleCode(Decl *D) { 26188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 26288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Don't run the actions if an error has occurred with parsing the file. 26388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Diagnostic &Diags = PP.getDiagnostics(); 26488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (Diags.hasErrorOccurred() || Diags.hasFatalErrorOccurred()) 26588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com return; 26688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 26788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Don't run the actions on declarations in header files unless 26888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // otherwise specified. 26988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com SourceManager &SM = Ctx->getSourceManager(); 27088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com SourceLocation SL = SM.getExpansionLoc(D->getLocation()); 27188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (!Opts.AnalyzeAll && !SM.isFromMainFile(SL)) 27288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com return; 27388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 27488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Clear the AnalysisManager of old AnalysisContexts. 27588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Mgr->ClearContexts(); 27688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 27788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Dispatch on the actions. 27888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com SmallVector<Decl*, 10> WL; 27988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com WL.push_back(D); 28088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 28188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (D->hasBody() && Opts.AnalyzeNestedBlocks) 28288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com FindBlocks(cast<DeclContext>(D), WL); 28388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 28488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com BugReporter BR(*Mgr); 28588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com for (SmallVectorImpl<Decl*>::iterator WI=WL.begin(), WE=WL.end(); 28688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com WI != WE; ++WI) 28788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if ((*WI)->hasBody()) { 28888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com checkerMgr->runCheckersOnASTBody(*WI, *Mgr, BR); 28988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (checkerMgr->hasPathSensitiveCheckers()) 29088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ActionObjCMemChecker(*this, *Mgr, *WI); 29188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 29288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com} 29388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 29488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 29588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com// Path-sensitive checking. 29688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com//===----------------------------------------------------------------------===// 29788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 29888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.comstatic void ActionExprEngine(AnalysisConsumer &C, AnalysisManager& mgr, 29988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Decl *D, 30088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com TransferFuncs* tf) { 30188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 30288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::OwningPtr<TransferFuncs> TF(tf); 30388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 30488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Construct the analysis engine. We first query for the LiveVariables 30588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // information to see if the CFG is valid. 30688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // FIXME: Inter-procedural analysis will need to handle invalid CFGs. 30788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (!mgr.getLiveVariables(D)) 30888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com return; 30988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ExprEngine Eng(mgr, TF.take()); 31088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 31188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Set the graph auditor. 31288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com llvm::OwningPtr<ExplodedNode::Auditor> Auditor; 31388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (mgr.shouldVisualizeUbigraph()) { 31488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Auditor.reset(CreateUbiViz()); 31588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ExplodedNode::SetAuditor(Auditor.get()); 31688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com } 31788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 31888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Execute the worklist algorithm. 31988b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Eng.ExecuteWorkList(mgr.getStackFrame(D, 0), mgr.getMaxNodes()); 32088b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 32188b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Release the auditor (if any) so that it doesn't monitor the graph 32288b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // created BugReporter. 32388b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com ExplodedNode::SetAuditor(0); 32488b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 32588b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com // Visualize the exploded graph. 32688b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com if (mgr.shouldVisualizeGraphviz()) 32788b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com Eng.ViewGraph(mgr.shouldTrimGraph()); 32888b02237dfdb25a9b602a7b6dd49665c96e8e890rtoy@google.com 329 // Display warnings. 330 Eng.getBugReporter().FlushReports(); 331} 332 333static void ActionObjCMemCheckerAux(AnalysisConsumer &C, AnalysisManager& mgr, 334 Decl *D, bool GCEnabled) { 335 336 TransferFuncs* TF = MakeCFRefCountTF(mgr.getASTContext(), 337 GCEnabled, 338 mgr.getLangOptions()); 339 340 ActionExprEngine(C, mgr, D, TF); 341} 342 343static void ActionObjCMemChecker(AnalysisConsumer &C, AnalysisManager& mgr, 344 Decl *D) { 345 346 switch (mgr.getLangOptions().getGCMode()) { 347 default: 348 assert (false && "Invalid GC mode."); 349 case LangOptions::NonGC: 350 ActionObjCMemCheckerAux(C, mgr, D, false); 351 break; 352 353 case LangOptions::GCOnly: 354 ActionObjCMemCheckerAux(C, mgr, D, true); 355 break; 356 357 case LangOptions::HybridGC: 358 ActionObjCMemCheckerAux(C, mgr, D, false); 359 ActionObjCMemCheckerAux(C, mgr, D, true); 360 break; 361 } 362} 363 364//===----------------------------------------------------------------------===// 365// AnalysisConsumer creation. 366//===----------------------------------------------------------------------===// 367 368ASTConsumer* ento::CreateAnalysisConsumer(const Preprocessor& pp, 369 const std::string& OutDir, 370 const AnalyzerOptions& Opts) { 371 llvm::OwningPtr<AnalysisConsumer> C(new AnalysisConsumer(pp, OutDir, Opts)); 372 373 // Last, disable the effects of '-Werror' when using the AnalysisConsumer. 374 pp.getDiagnostics().setWarningsAsErrors(false); 375 376 return C.take(); 377} 378 379//===----------------------------------------------------------------------===// 380// Ubigraph Visualization. FIXME: Move to separate file. 381//===----------------------------------------------------------------------===// 382 383namespace { 384 385class UbigraphViz : public ExplodedNode::Auditor { 386 llvm::OwningPtr<raw_ostream> Out; 387 llvm::sys::Path Dir, Filename; 388 unsigned Cntr; 389 390 typedef llvm::DenseMap<void*,unsigned> VMap; 391 VMap M; 392 393public: 394 UbigraphViz(raw_ostream *out, llvm::sys::Path& dir, 395 llvm::sys::Path& filename); 396 397 ~UbigraphViz(); 398 399 virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst); 400}; 401 402} // end anonymous namespace 403 404static ExplodedNode::Auditor* CreateUbiViz() { 405 std::string ErrMsg; 406 407 llvm::sys::Path Dir = llvm::sys::Path::GetTemporaryDirectory(&ErrMsg); 408 if (!ErrMsg.empty()) 409 return 0; 410 411 llvm::sys::Path Filename = Dir; 412 Filename.appendComponent("llvm_ubi"); 413 Filename.makeUnique(true,&ErrMsg); 414 415 if (!ErrMsg.empty()) 416 return 0; 417 418 llvm::errs() << "Writing '" << Filename.str() << "'.\n"; 419 420 llvm::OwningPtr<llvm::raw_fd_ostream> Stream; 421 Stream.reset(new llvm::raw_fd_ostream(Filename.c_str(), ErrMsg)); 422 423 if (!ErrMsg.empty()) 424 return 0; 425 426 return new UbigraphViz(Stream.take(), Dir, Filename); 427} 428 429void UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) { 430 431 assert (Src != Dst && "Self-edges are not allowed."); 432 433 // Lookup the Src. If it is a new node, it's a root. 434 VMap::iterator SrcI= M.find(Src); 435 unsigned SrcID; 436 437 if (SrcI == M.end()) { 438 M[Src] = SrcID = Cntr++; 439 *Out << "('vertex', " << SrcID << ", ('color','#00ff00'))\n"; 440 } 441 else 442 SrcID = SrcI->second; 443 444 // Lookup the Dst. 445 VMap::iterator DstI= M.find(Dst); 446 unsigned DstID; 447 448 if (DstI == M.end()) { 449 M[Dst] = DstID = Cntr++; 450 *Out << "('vertex', " << DstID << ")\n"; 451 } 452 else { 453 // We have hit DstID before. Change its style to reflect a cache hit. 454 DstID = DstI->second; 455 *Out << "('change_vertex_style', " << DstID << ", 1)\n"; 456 } 457 458 // Add the edge. 459 *Out << "('edge', " << SrcID << ", " << DstID 460 << ", ('arrow','true'), ('oriented', 'true'))\n"; 461} 462 463UbigraphViz::UbigraphViz(raw_ostream *out, llvm::sys::Path& dir, 464 llvm::sys::Path& filename) 465 : Out(out), Dir(dir), Filename(filename), Cntr(0) { 466 467 *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n"; 468 *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66')," 469 " ('size', '1.5'))\n"; 470} 471 472UbigraphViz::~UbigraphViz() { 473 Out.reset(0); 474 llvm::errs() << "Running 'ubiviz' program... "; 475 std::string ErrMsg; 476 llvm::sys::Path Ubiviz = llvm::sys::Program::FindProgramByName("ubiviz"); 477 std::vector<const char*> args; 478 args.push_back(Ubiviz.c_str()); 479 args.push_back(Filename.c_str()); 480 args.push_back(0); 481 482 if (llvm::sys::Program::ExecuteAndWait(Ubiviz, &args[0],0,0,0,0,&ErrMsg)) { 483 llvm::errs() << "Error viewing graph: " << ErrMsg << "\n"; 484 } 485 486 // Delete the directory. 487 Dir.eraseFromDisk(true); 488} 489