AnalysisConsumer.cpp revision b8e60d9a8ff06110efab37fc123b3c56937367a9
1f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===--- AnalysisConsumer.cpp - ASTConsumer for running Analyses ----------===// 2f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// 3f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// The LLVM Compiler Infrastructure 4f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// 5f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// This file is distributed under the University of Illinois Open Source 6f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// License. See LICENSE.TXT for details. 7f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// 8f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 9f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// 10f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// "Meta" ASTConsumer for running different source analyses. 11f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// 12f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 13f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 14d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#define DEBUG_TYPE "AnalysisConsumer" 15d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 16e6348c336fecc8da9288ea367375a1b1cd2358d2Argyrios Kyrtzidis#include "AnalysisConsumer.h" 17f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek#include "clang/AST/ASTConsumer.h" 18f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek#include "clang/AST/Decl.h" 19802be99a6817aba6edb166b93c133da4358aa783Zhongxing Xu#include "clang/AST/DeclCXX.h" 20f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek#include "clang/AST/DeclObjC.h" 21efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/AST/ParentMap.h" 22aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks#include "clang/AST/RecursiveASTVisitor.h" 2355fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Analysis/Analyses/LiveVariables.h" 24efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/Analysis/CFG.h" 25d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#include "clang/Analysis/CallGraph.h" 2655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Basic/FileManager.h" 2755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Basic/SourceManager.h" 2855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Lex/Preprocessor.h" 2921142581d55918beed544a757e4af3bb865b1812Ted Kremenek#include "clang/StaticAnalyzer/Checkers/LocalCheckers.h" 3055fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 3155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h" 329b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h" 3355fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/CheckerManager.h" 3455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/PathDiagnosticConsumers.h" 359b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h" 369b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h" 3755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Frontend/CheckerRegistration.h" 38d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#include "llvm/ADT/DepthFirstIterator.h" 396cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer#include "llvm/ADT/OwningPtr.h" 40b99083e60325a28063fb588f458a871151971fdcChandler Carruth#include "llvm/ADT/PostOrderIterator.h" 416a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks#include "llvm/ADT/SmallPtrSet.h" 4281fb169f42769e02c7425b23885a261c025fd5e6Anna Zaks#include "llvm/ADT/Statistic.h" 43b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola#include "llvm/Support/FileSystem.h" 4455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Path.h" 4557a3bbfa9a97f174b0c80b0309e32f4329c4ae1bRafael Espindola#include "llvm/Support/PathV1.h" 4655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Program.h" 4755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Timer.h" 4855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/raw_ostream.h" 497fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks#include <queue> 507fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 51f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenekusing namespace clang; 529ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenekusing namespace ento; 53d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksusing llvm::SmallPtrSet; 54f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 55c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz(); 56ff944a8c481d6c0f1ad2633e4be9bf8b1dd2a09fZhongxing Xu 573fd5f370a28552976c52e76c3035d79012d78ddaAnna ZaksSTATISTIC(NumFunctionTopLevel, "The # of functions at top level."); 5875f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksSTATISTIC(NumFunctionsAnalyzed, 5939cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of functions and blocks analyzed (as top level " 6039cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "with inlining turned on)."); 61e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(NumBlocksInAnalyzedFunctions, 6239cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of basic blocks in the analyzed functions."); 63e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(PercentReachableBlocks, "The % of reachable basic blocks."); 6484c1f4b1edddf74f8080cfc470796c2c498b5d43Anna ZaksSTATISTIC(MaxCFGSize, "The maximum number of basic blocks in a function."); 65d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 66be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek//===----------------------------------------------------------------------===// 67f39d962cf84f46d2c0512157259ae1d41a1a5173David Blaikie// Special PathDiagnosticConsumers. 68f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 69f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 709fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenekstatic void createPlistHTMLDiagnosticConsumer(AnalyzerOptions &AnalyzerOpts, 719fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek PathDiagnosticConsumers &C, 72c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const std::string &prefix, 73c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const Preprocessor &PP) { 749fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createHTMLDiagnosticConsumer(AnalyzerOpts, C, 759fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek llvm::sys::path::parent_path(prefix), PP); 769fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createPlistDiagnosticConsumer(AnalyzerOpts, C, prefix, PP); 77f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek} 78f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 79c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremeneknamespace { 80c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekclass ClangDiagPathDiagConsumer : public PathDiagnosticConsumer { 81c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticsEngine &Diag; 82c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekpublic: 83c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek ClangDiagPathDiagConsumer(DiagnosticsEngine &Diag) : Diag(Diag) {} 84c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual ~ClangDiagPathDiagConsumer() {} 85c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual StringRef getName() const { return "ClangDiags"; } 86c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual PathGenerationScheme getGenerationScheme() const { return None; } 87c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 88c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek void FlushDiagnosticsImpl(std::vector<const PathDiagnostic *> &Diags, 89c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek FilesMade *filesMade) { 90c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (std::vector<const PathDiagnostic*>::iterator I = Diags.begin(), 91c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Diags.end(); I != E; ++I) { 92c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const PathDiagnostic *PD = *I; 933a46f5fd1709f6df03bbb8b0abf84052dc0f39ffJordan Rose StringRef desc = PD->getShortDescription(); 94c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek SmallString<512> TmpStr; 95c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek llvm::raw_svector_ostream Out(TmpStr); 96c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (StringRef::iterator I=desc.begin(), E=desc.end(); I!=E; ++I) { 97c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek if (*I == '%') 98c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out << "%%"; 99c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek else 100c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out << *I; 101c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 102c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out.flush(); 103c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek unsigned ErrorDiag = Diag.getCustomDiagID(DiagnosticsEngine::Warning, 104c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek TmpStr); 105c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek SourceLocation L = PD->getLocation().asLocation(); 106c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticBuilder diagBuilder = Diag.Report(L, ErrorDiag); 107c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 108c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Get the ranges from the last point in the path. 109c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek ArrayRef<SourceRange> Ranges = PD->path.back()->getRanges(); 110c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 111c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (ArrayRef<SourceRange>::iterator I = Ranges.begin(), 112c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Ranges.end(); I != E; ++I) { 113c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek diagBuilder << *I; 114c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 115c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 116c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 117c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek}; 118c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek} // end anonymous namespace 119c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 120f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 121f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer declaration. 122f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 123f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 124f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremeneknamespace { 125f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 126aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksclass AnalysisConsumer : public ASTConsumer, 127aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks public RecursiveASTVisitor<AnalysisConsumer> { 1284eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose enum { 1294eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_None = 0, 1304eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Syntax = 0x1, 1314eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Path = 0x2 132aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks }; 1334eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose typedef unsigned AnalysisMode; 134aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 135aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Mode of the analyzes while recursively visiting Decls. 136aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks AnalysisMode RecVisitorMode; 137aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Bug Reporter to use while recursively visiting Decls. 138aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks BugReporter *RecVisitorBR; 139aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 140ed8afacb8118b71bcfa8017059e51da325e7691bZhongxing Xupublic: 1419c378f705405d37f49795d5e915989de774fe11fTed Kremenek ASTContext *Ctx; 1421d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const Preprocessor &PP; 1431d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string OutDir; 14445796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef Opts; 14508b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> Plugins; 146d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1476a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Stores the declarations from the local translation unit. 1486a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// Note, we pre-compute the local declarations at parse time as an 1496a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// optimization to make sure we do not deserialize everything from disk. 1506a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// The local declaration to all declarations ratio might be very small when 1516a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// working with a PCH file. 1526a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfDecls LocalTUDecls; 153cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek 154c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Set of PathDiagnosticConsumers. Owned by AnalysisManager. 155c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathDiagnosticConsumers PathConsumers; 156d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1571d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek StoreManagerCreator CreateStoreMgr; 1581d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek ConstraintManagerCreator CreateConstraintMgr; 159f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 1606f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<CheckerManager> checkerMgr; 1616f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<AnalysisManager> Mgr; 162c471e7b44e63ff1b46b480e723c4130aeaef5a8aZhongxing Xu 163d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks /// Time the analyzes time of each translation unit. 164d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks static llvm::Timer* TUTotalTimer; 165d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 1663bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// The information about analyzed functions shared throughout the 1673bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// translation unit. 1683bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks FunctionSummariesTy FunctionSummaries; 1693bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks 1701d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek AnalysisConsumer(const Preprocessor& pp, 1711d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string& outdir, 17245796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 17308b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) 1744eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose : RecVisitorMode(0), RecVisitorBR(0), 175c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Ctx(0), PP(pp), OutDir(outdir), Opts(opts), Plugins(plugins) { 1761d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek DigestAnalyzerOptions(); 17745796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) { 178d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks llvm::EnableStatistics(); 179d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks TUTotalTimer = new llvm::Timer("Analyzer Total Time"); 180d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 181d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 182d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 183d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks ~AnalysisConsumer() { 18445796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) 185d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks delete TUTotalTimer; 1861d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 187fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 1881d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek void DigestAnalyzerOptions() { 189ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Create the PathDiagnosticConsumer. 190c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers.push_back(new ClangDiagPathDiagConsumer(PP.getDiagnostics())); 191c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 1921d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek if (!OutDir.empty()) { 19345796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisDiagOpt) { 1941d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek default: 195fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATEFN, AUTOCREATE) \ 1969fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek case PD_##NAME: CREATEFN(*Opts.getPtr(), PathConsumers, OutDir, PP);\ 1979fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek break; 198987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 199fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 20045796b10d11869e86c6b85e24df165410536b313Ted Kremenek } else if (Opts->AnalysisDiagOpt == PD_TEXT) { 201a599ae8826b01c0160a519b0fc5a4871f599bf04Argyrios Kyrtzidis // Create the text client even without a specified output file since 202a599ae8826b01c0160a519b0fc5a4871f599bf04Argyrios Kyrtzidis // it just uses diagnostic notes. 2039fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createTextPathDiagnosticConsumer(*Opts.getPtr(), PathConsumers, "", PP); 2041d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 205fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 2061d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek // Create the analyzer component creators. 20745796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisStoreOpt) { 2085f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 209b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown store manager."); 210fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATEFN) \ 2115f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateStoreMgr = CREATEFN; break; 212987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 2131d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21545796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisConstraintsOpt) { 2165f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 2171c32b81765ed63ae9e3e00e5acef7a4379bba228Anna Zaks llvm_unreachable("Unknown constraint manager."); 218fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATEFN) \ 2195f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateConstraintMgr = CREATEFN; break; 220987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 221fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 2221d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 223f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 224a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks void DisplayFunction(const Decl *D, AnalysisMode Mode, 225a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks ExprEngine::InliningModes IMode) { 22645796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzerDisplayProgress) 2271d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek return; 228f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 229fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek SourceManager &SM = Mgr->getASTContext().getSourceManager(); 230fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek PresumedLoc Loc = SM.getPresumedLoc(D->getLocation()); 231cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (Loc.isValid()) { 232aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << "ANALYZE"; 2334eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 2344eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_Syntax) 2354eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose llvm::errs() << " (Syntax)"; 236a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks else if (Mode == AM_Path) { 237a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks llvm::errs() << " (Path, "; 238a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks switch (IMode) { 2398a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks case ExprEngine::Inline_Minimal: 2408a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks llvm::errs() << " Inline_Minimal"; 241a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks break; 2428a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks case ExprEngine::Inline_Regular: 2438a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks llvm::errs() << " Inline_Regular"; 244a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks break; 245a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks } 246a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks llvm::errs() << ")"; 247a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks } 2484eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose else 2494eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose assert(Mode == (AM_Syntax | AM_Path) && "Unexpected mode!"); 2504eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 251aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << ": " << Loc.getFilename(); 252cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (isa<FunctionDecl>(D) || isa<ObjCMethodDecl>(D)) { 253cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor const NamedDecl *ND = cast<NamedDecl>(D); 254b8989f27f116ff2400e92a52c067a69846119eb5Benjamin Kramer llvm::errs() << ' ' << *ND << '\n'; 255cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 256cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (isa<BlockDecl>(D)) { 257cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << "block(line:" << Loc.getLine() << ",col:" 258cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor << Loc.getColumn() << '\n'; 259cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 260cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 261cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor Selector S = MD->getSelector(); 262cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << S.getAsString(); 263cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 26435fa76d0bb6fb8c86159a7506efd094a4fe376d2Ted Kremenek } 2651d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2671d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek virtual void Initialize(ASTContext &Context) { 2681d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek Ctx = &Context; 26945796b10d11869e86c6b85e24df165410536b313Ted Kremenek checkerMgr.reset(createCheckerManager(*Opts, PP.getLangOpts(), Plugins, 27008b86531ade68727c56918f162816075b87c864aJordy Rose PP.getDiagnostics())); 271c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Mgr.reset(new AnalysisManager(*Ctx, 272c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getDiagnostics(), 273c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getLangOpts(), 274c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers, 275c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateStoreMgr, 276c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateConstraintMgr, 27743dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis checkerMgr.get(), 27845796b10d11869e86c6b85e24df165410536b313Ted Kremenek *Opts)); 2791d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2816a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Store the top level decls in the set to be processed later on. 2826a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// (Doing this pre-processing avoids deserialization of data from PCH.) 2836a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks virtual bool HandleTopLevelDecl(DeclGroupRef D); 2846a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D); 2856a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 2861d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek virtual void HandleTranslationUnit(ASTContext &C); 28714cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenek 28875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks /// \brief Determine which inlining mode should be used when this function is 2898a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks /// analyzed. This allows to redefine the default inlining policies when 2908a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks /// analyzing a given function. 29175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes 292b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks getInliningModeForFunction(const Decl *D, SetOfConstDecls Visited); 29375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 2946a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Build the call graph for all the top level decls of this TU and 2956a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// use it to define the order in which the functions should be visited. 296469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose void HandleDeclsCallGraph(const unsigned LocalTUDeclsSize); 297aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 298aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \brief Run analyzes(syntax or path sensitive) on the given function. 299aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param Mode - determines if we are requesting syntax only or path 300aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// sensitive only analysis. 301aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param VisitedCallees - The output parameter, which is populated with the 302aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// set of functions which should be considered analyzed after analyzing the 303aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// given root function. 3046a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void HandleCode(Decl *D, AnalysisMode Mode, 3058a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks ExprEngine::InliningModes IMode = ExprEngine::Inline_Minimal, 3066a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees = 0); 307aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 30875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks void RunPathSensitiveChecks(Decl *D, 30975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 31075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks SetOfConstDecls *VisitedCallees); 3116a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void ActionExprEngine(Decl *D, bool ObjCGCEnabled, 31275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 3136a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees); 314aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 315aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Visitors for the RecursiveASTVisitor. 316c8848f34bbde083b8d89f445eb605eaabf30d6a8Anna Zaks bool shouldWalkTypesOfTypeLocs() const { return false; } 317aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 318aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Handle callbacks for arbitrary Decls. 319aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitDecl(Decl *D) { 3204eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode Mode = getModeForDecl(D, RecVisitorMode); 3214eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 3224eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose checkerMgr->runCheckersOnASTDecl(D, *Mgr, *RecVisitorBR); 323aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 324aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 325aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 326aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitFunctionDecl(FunctionDecl *FD) { 327aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks IdentifierInfo *II = FD->getIdentifier(); 328aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (II && II->getName().startswith("__inline")) 329aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 330aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 331aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // We skip function template definitions, as their semantics is 332aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // only determined when they are instantiated. 333aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (FD->isThisDeclarationADefinition() && 334aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks !FD->isDependentContext()) { 33575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 336aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(FD, RecVisitorMode); 337aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 338aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 339aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 340aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 341aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitObjCMethodDecl(ObjCMethodDecl *MD) { 34275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (MD->isThisDeclarationADefinition()) { 34375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 344aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(MD, RecVisitorMode); 34575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 346aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 347aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 3484f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks 3494f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks bool VisitBlockDecl(BlockDecl *BD) { 3504f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (BD->hasBody()) { 3514f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 3524f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks HandleCode(BD, RecVisitorMode); 3534f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 3544f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks return true; 3554f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 3566a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3576a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksprivate: 3586a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void storeTopLevelDecls(DeclGroupRef DG); 3596a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3606a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Check if we should skip (not analyze) the given function. 3614eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode getModeForDecl(Decl *D, AnalysisMode Mode); 3626a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3631d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek}; 364f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} // end anonymous namespace 365f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 366aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 367f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 368f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer implementation. 369f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 370d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaksllvm::Timer* AnalysisConsumer::TUTotalTimer = 0; 371f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 3726a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksbool AnalysisConsumer::HandleTopLevelDecl(DeclGroupRef DG) { 3736a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3746a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks return true; 3756a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3766a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3776a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) { 3786a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3796a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3806a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3816a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::storeTopLevelDecls(DeclGroupRef DG) { 3826a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) { 3836a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3846a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Skip ObjCMethodDecl, wait for the objc container to avoid 3856a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // analyzing twice. 3866a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks if (isa<ObjCMethodDecl>(*I)) 3876a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks continue; 3886a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 389577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek LocalTUDecls.push_back(*I); 3906a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks } 3916a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3926a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 393b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaksstatic bool shouldSkipFunction(const Decl *D, 394b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited, 395b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel) { 396b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (VisitedAsTopLevel.count(D)) 39775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks return true; 39875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 39975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to re-analyse the functions as top level in the following cases: 400fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - The 'init' methods should be reanalyzed because 401fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // ObjCNonNilReturnValueChecker assumes that '[super init]' never returns 40275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // 'nil' and unless we analyze the 'init' functions as top level, we will 40375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // not catch errors within defensive code. 404fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - We want to reanalyze all ObjC methods as top level to report Retain 405fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Count naming convention errors more aggressively. 406b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (isa<ObjCMethodDecl>(D)) 407fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks return false; 408fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 409fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Otherwise, if we visited the function before, do not reanalyze it. 410b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks return Visited.count(D); 411fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks} 412fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 41375f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksExprEngine::InliningModes 414b467051a9f212c57335f88f16e839e1dc8afc1c1Anna ZaksAnalysisConsumer::getInliningModeForFunction(const Decl *D, 415b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited) { 41675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to reanalyze all ObjC methods as top level to report Retain 4178a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks // Count naming convention errors more aggressively. But we should tune down 41875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // inlining when reanalyzing an already inlined function. 419b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (Visited.count(D)) { 420b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks assert(isa<ObjCMethodDecl>(D) && 42175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks "We are only reanalyzing ObjCMethods."); 422b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks const ObjCMethodDecl *ObjCM = cast<ObjCMethodDecl>(D); 42375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (ObjCM->getMethodFamily() != OMF_init) 4248a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks return ExprEngine::Inline_Minimal; 42575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 42675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 4278a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks return ExprEngine::Inline_Regular; 42875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks} 42975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 430469ba550f54577f28e23ea42c293308fbcad6609Jordan Rosevoid AnalysisConsumer::HandleDeclsCallGraph(const unsigned LocalTUDeclsSize) { 431bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Build the Call Graph by adding all the top level declarations to the graph. 432694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // Note: CallGraph can trigger deserialization of more items from a pch 433694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // (though HandleInterestingDecl); triggering additions to LocalTUDecls. 434694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // We rely on random access to add the initially processed Decls to CG. 435bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks CallGraph CG; 436694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 437eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks CG.addToCallGraph(LocalTUDecls[i]); 438eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks } 439d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 440bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Walk over all of the call graph nodes in topological order, so that we 441bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // analyze parents before the children. Skip the functions inlined into 442bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // the previously processed functions. Use external Visited set to identify 443bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // inlined functions. The topological order allows the "do not reanalyze 444bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // previously inlined function" performance heuristic to be triggered more 445bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // often. 446b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited; 447b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel; 448bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks llvm::ReversePostOrderTraversal<clang::CallGraph*> RPOT(&CG); 449bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks for (llvm::ReversePostOrderTraversal<clang::CallGraph*>::rpo_iterator 450bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks I = RPOT.begin(), E = RPOT.end(); I != E; ++I) { 451bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks NumFunctionTopLevel++; 452371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek 453bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks CallGraphNode *N = *I; 454b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Decl *D = N->getDecl(); 455bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks 456bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Skip the abstract root node. 457bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks if (!D) 458bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks continue; 459b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks 4607fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Skip the functions which have been processed already or previously 4617fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // inlined. 462b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (shouldSkipFunction(D, Visited, VisitedAsTopLevel)) 4637fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks continue; 4647fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4657fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Analyze the function. 4666a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls VisitedCallees; 46775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 468b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks HandleCode(D, AM_Path, getInliningModeForFunction(D, Visited), 469255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek (Mgr->options.InliningMode == All ? 0 : &VisitedCallees)); 4707fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4717fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Add the visited callees to the global visited set. 472cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek for (SetOfConstDecls::iterator I = VisitedCallees.begin(), 473cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek E = VisitedCallees.end(); I != E; ++I) { 474b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Visited.insert(*I); 4757fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks } 476b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks VisitedAsTopLevel.insert(D); 477d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 478fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek} 479fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek 48014cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenekvoid AnalysisConsumer::HandleTranslationUnit(ASTContext &C) { 481aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Don't run the actions if an error has occurred with parsing the file. 482aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DiagnosticsEngine &Diags = PP.getDiagnostics(); 483aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Diags.hasErrorOccurred() || Diags.hasFatalErrorOccurred()) 484aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return; 485aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 486c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks { 487d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->startTimer(); 488d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 489c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // Introduce a scope to destroy BR before Mgr. 490c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks BugReporter BR(*Mgr); 491c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks TranslationUnitDecl *TU = C.getTranslationUnitDecl(); 492c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnASTDecl(TU, *Mgr, BR); 493aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 494aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Run the AST-only checks using the order in which functions are defined. 495aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // If inlining is not turned on, use the simplest function order for path 496aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // sensitive analyzes as well. 4974eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode = AM_Syntax; 4984eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Mgr->shouldInlineCall()) 4994eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode |= AM_Path; 500aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = &BR; 5016a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 5026a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Process all the top level declarations. 503cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek // 504577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // Note: TraverseDecl may modify LocalTUDecls, but only by appending more 505577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // entries. Thus we don't use an iterator, but rely on LocalTUDecls 506577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // random access. By doing so, we automatically compensate for iterators 507577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // possibly being invalidated, although this is a bit slower. 508694a942b0a14e02757a695142c45437eec6e3684Anna Zaks const unsigned LocalTUDeclsSize = LocalTUDecls.size(); 509694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 510577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek TraverseDecl(LocalTUDecls[i]); 511cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek } 512aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 513aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Mgr->shouldInlineCall()) 514469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose HandleDeclsCallGraph(LocalTUDeclsSize); 515b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 516c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // After all decls handled, run checkers on the entire TranslationUnit. 517c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnEndOfTranslationUnit(TU, *Mgr, BR); 518aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 519aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = 0; 520c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks } 5219be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 522ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Explicitly destroy the PathDiagnosticConsumer. This will flush its output. 523690a7f431d6863a101711e67636d51ddd13f35c5Ted Kremenek // FIXME: This should be replaced with something that doesn't rely on 524ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // side-effects in PathDiagnosticConsumer's destructor. This is required when 525da17fd50ad485fd2a1fc5c2f055caacf532992daZhongxing Xu // used with option -disable-free. 526d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu Mgr.reset(NULL); 527d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 528d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->stopTimer(); 5296b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 5306b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks // Count how many basic blocks we have not covered. 5316b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions = FunctionSummaries.getTotalNumBasicBlocks(); 5326b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks if (NumBlocksInAnalyzedFunctions > 0) 5336b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks PercentReachableBlocks = 5346b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks (FunctionSummaries.getTotalNumVisitedBasicBlocks() * 100) / 5356b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions; 5366b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 537db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek} 538db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek 539d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksstatic std::string getFunctionName(const Decl *D) { 540d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const ObjCMethodDecl *ID = dyn_cast<ObjCMethodDecl>(D)) { 541d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ID->getSelector().getAsString(); 542d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 543d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const FunctionDecl *ND = dyn_cast<FunctionDecl>(D)) { 544d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks IdentifierInfo *II = ND->getIdentifier(); 545d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (II) 546d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return II->getName(); 547d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 548d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ""; 549d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks} 550d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 5514eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::AnalysisMode 5524eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::getModeForDecl(Decl *D, AnalysisMode Mode) { 55345796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzeSpecificFunction.empty() && 55445796b10d11869e86c6b85e24df165410536b313Ted Kremenek getFunctionName(D) != Opts->AnalyzeSpecificFunction) 5554eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5574eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // Unless -analyze-all is specified, treat decls differently depending on 5584eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // where they came from: 5594eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Main source file: run both path-sensitive and non-path-sensitive checks. 5604eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Header files: run non-path-sensitive checks only. 5614eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - System headers: don't run any checks. 562fcd783d583d270b7ec1ec3e0fcf83cd93d30e381Ted Kremenek SourceManager &SM = Ctx->getSourceManager(); 563402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth SourceLocation SL = SM.getExpansionLoc(D->getLocation()); 5644eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Opts->AnalyzeAll && !SM.isFromMainFile(SL)) { 5654eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (SL.isInvalid() || SM.isInSystemHeader(SL)) 5664eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5674eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode & ~AM_Path; 5684eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose } 56998520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 5704eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode; 57198520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks} 57298520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 573aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksvoid AnalysisConsumer::HandleCode(Decl *D, AnalysisMode Mode, 57475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 5756a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 5764f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (!D->hasBody()) 5774f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks return; 5784eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose Mode = getModeForDecl(D, Mode); 5794eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_None) 5801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return; 581f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 582a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks DisplayFunction(D, Mode, IMode); 58384c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks CFG *DeclCFG = Mgr->getCFG(D); 58484c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks if (DeclCFG) { 58584c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks unsigned CFGSize = DeclCFG->size(); 58684c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks MaxCFGSize = MaxCFGSize < CFGSize ? CFGSize : MaxCFGSize; 58784c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks } 58884c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks 5891d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek // Clear the AnalysisManager of old AnalysisDeclContexts. 59058f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Mgr->ClearContexts(); 5919fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis BugReporter BR(*Mgr); 5924f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks 5934f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (Mode & AM_Syntax) 5944f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks checkerMgr->runCheckersOnASTBody(D, *Mgr, BR); 5954f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if ((Mode & AM_Path) && checkerMgr->hasPathSensitiveCheckers()) { 5964f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks RunPathSensitiveChecks(D, IMode, VisitedCallees); 5978a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks if (IMode != ExprEngine::Inline_Minimal) 5984f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks NumFunctionsAnalyzed++; 5994f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 600f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 601f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 602f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 603d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis// Path-sensitive checking. 604f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 605f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6063fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaksvoid AnalysisConsumer::ActionExprEngine(Decl *D, bool ObjCGCEnabled, 60775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6086a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 609a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Construct the analysis engine. First check if the CFG is valid. 61075d03cffe20b5c945ef04eba208efb0437339997Ted Kremenek // FIXME: Inter-procedural analysis will need to handle invalid CFGs. 6113fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks if (!Mgr->getCFG(D)) 612f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek return; 6133fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks 614d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek // See if the LiveVariables analysis scales. 615d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek if (!Mgr->getAnalysisDeclContext(D)->getAnalysis<RelaxedLiveVariables>()) 616d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek return; 617d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek 61875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine Eng(*Mgr, ObjCGCEnabled, VisitedCallees, &FunctionSummaries,IMode); 619f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 620f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Set the graph auditor. 6216f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<ExplodedNode::Auditor> Auditor; 6223b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithUbiGraph) { 623f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Auditor.reset(CreateUbiViz()); 624c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(Auditor.get()); 625f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 6261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 627b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek // Execute the worklist algorithm. 628d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose Eng.ExecuteWorkList(Mgr->getAnalysisDeclContextManager().getStackFrame(D), 629ac3a3e7a402cd349dd2b7d70cd92c5fe702ae831Anna Zaks Mgr->options.getMaxNodesPerTopLevelFunction()); 6301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 631f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Release the auditor (if any) so that it doesn't monitor the graph 632f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // created BugReporter. 633c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(0); 6343df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek 63534d7734b6ed1d9c0f647405e065251eb67f42badTed Kremenek // Visualize the exploded graph. 6363b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithGraphViz) 637255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Eng.ViewGraph(Mgr->options.TrimGraph); 6381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6393df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek // Display warnings. 6403df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek Eng.getBugReporter().FlushReports(); 641bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek} 642bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek 6436a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::RunPathSensitiveChecks(Decl *D, 64475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6456a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *Visited) { 64617a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 6474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie switch (Mgr->getLangOpts().getGC()) { 64817a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::NonGC: 64975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 65017a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 65117a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 65217a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::GCOnly: 65375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 65417a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 65517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 65617a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::HybridGC: 65775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 65875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 65917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 66017a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose } 661b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek} 662b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek 663f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 664f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer creation. 665f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 666f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6679ef6537a894c33003359b1f9b9676e9178e028b7Ted KremenekASTConsumer* ento::CreateAnalysisConsumer(const Preprocessor& pp, 66808b86531ade68727c56918f162816075b87c864aJordy Rose const std::string& outDir, 66945796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 67008b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) { 67108b86531ade68727c56918f162816075b87c864aJordy Rose // Disable the effects of '-Werror' when using the AnalysisConsumer. 672efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar pp.getDiagnostics().setWarningsAsErrors(false); 673be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek 67408b86531ade68727c56918f162816075b87c864aJordy Rose return new AnalysisConsumer(pp, outDir, opts, plugins); 675f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 676f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 677f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 678f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek// Ubigraph Visualization. FIXME: Move to separate file. 679f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 680f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 681f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremeneknamespace { 6821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 683c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass UbigraphViz : public ExplodedNode::Auditor { 6846f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<raw_ostream> Out; 685b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola std::string Dir, Filename; 686f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned Cntr; 687f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 688f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek typedef llvm::DenseMap<void*,unsigned> VMap; 689f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap M; 6901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 691f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenekpublic: 692b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola UbigraphViz(raw_ostream *Out, StringRef Dir, StringRef Filename); 6931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 694710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek ~UbigraphViz(); 6951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6969c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst); 697f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek}; 6981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 699f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} // end anonymous namespace 700f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 701c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz() { 702b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola SmallString<128> P; 703b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola int FD; 704b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola llvm::sys::fs::unique_file("llvm_ubi-%%%%%%", FD, P); 705b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola llvm::errs() << "Writing '" << P.str() << "'.\n"; 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7076f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<llvm::raw_fd_ostream> Stream; 708b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola Stream.reset(new llvm::raw_fd_ostream(FD, true)); 7091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 710b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola StringRef Dir = llvm::sys::path::parent_path(P); 711b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola return new UbigraphViz(Stream.take(), Dir, P); 712f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 713f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7149c378f705405d37f49795d5e915989de774fe11fTed Kremenekvoid UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) { 7151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 71645479c88c8a44c55d27c3bd855273bb318082f37Ted Kremenek assert (Src != Dst && "Self-edges are not allowed."); 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 718f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Src. If it is a new node, it's a root. 719f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator SrcI= M.find(Src); 720f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned SrcID; 7211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 722f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (SrcI == M.end()) { 723f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Src] = SrcID = Cntr++; 724f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << SrcID << ", ('color','#00ff00'))\n"; 725f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 726f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek else 727f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek SrcID = SrcI->second; 7281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 729f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Dst. 730f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator DstI= M.find(Dst); 731f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned DstID; 732f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 733f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (DstI == M.end()) { 734f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Dst] = DstID = Cntr++; 735f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << DstID << ")\n"; 736f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 73756b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek else { 73856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek // We have hit DstID before. Change its style to reflect a cache hit. 739f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek DstID = DstI->second; 74056b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('change_vertex_style', " << DstID << ", 1)\n"; 74156b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek } 742f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 743f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Add the edge. 7441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump *Out << "('edge', " << SrcID << ", " << DstID 745d1289327f7d2126d732e23cc189ecd0aa5d07cbbTed Kremenek << ", ('arrow','true'), ('oriented', 'true'))\n"; 746f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 747f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 748b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael EspindolaUbigraphViz::UbigraphViz(raw_ostream *Out, StringRef Dir, StringRef Filename) 749b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola : Out(Out), Dir(Dir), Filename(Filename), Cntr(0) { 75056b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 75156b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n"; 75256b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66')," 75356b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek " ('size', '1.5'))\n"; 75456b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek} 75556b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 756710ad9343f32b33b336369b20edad1a21a0b3299Ted KremenekUbigraphViz::~UbigraphViz() { 757710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek Out.reset(0); 7586cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Running 'ubiviz' program... "; 759710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::string ErrMsg; 7602289933d3dfad854c006c02738abb1c57d1d587eRafael Espindola std::string Ubiviz = llvm::sys::FindProgramByName("ubiviz"); 761710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::vector<const char*> args; 762710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Ubiviz.c_str()); 763710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Filename.c_str()); 764710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(0); 7651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 76657a3bbfa9a97f174b0c80b0309e32f4329c4ae1bRafael Espindola if (llvm::sys::ExecuteAndWait(Ubiviz, &args[0], 0, 0, 0, 0, &ErrMsg)) { 7676cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Error viewing graph: " << ErrMsg << "\n"; 768710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek } 7691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 770710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek // Delete the directory. 771b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola llvm::sys::fs::remove_all(Dir); 772932680ecdeab4c216ce7c0736093d3dcd2f60f6dDaniel Dunbar} 773