AnalysisConsumer.cpp revision d2a5bee210218220a57d9f61a66e7f766a21d313
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" 4555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Program.h" 4655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Timer.h" 4755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/raw_ostream.h" 487fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks#include <queue> 497fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 50f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenekusing namespace clang; 519ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenekusing namespace ento; 52d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksusing llvm::SmallPtrSet; 53f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 54c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz(); 55ff944a8c481d6c0f1ad2633e4be9bf8b1dd2a09fZhongxing Xu 563fd5f370a28552976c52e76c3035d79012d78ddaAnna ZaksSTATISTIC(NumFunctionTopLevel, "The # of functions at top level."); 5775f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksSTATISTIC(NumFunctionsAnalyzed, 5839cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of functions and blocks analyzed (as top level " 5939cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "with inlining turned on)."); 60e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(NumBlocksInAnalyzedFunctions, 6139cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of basic blocks in the analyzed functions."); 62e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(PercentReachableBlocks, "The % of reachable basic blocks."); 6384c1f4b1edddf74f8080cfc470796c2c498b5d43Anna ZaksSTATISTIC(MaxCFGSize, "The maximum number of basic blocks in a function."); 64d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 65be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek//===----------------------------------------------------------------------===// 66f39d962cf84f46d2c0512157259ae1d41a1a5173David Blaikie// Special PathDiagnosticConsumers. 67f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 68f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 699fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenekstatic void createPlistHTMLDiagnosticConsumer(AnalyzerOptions &AnalyzerOpts, 709fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek PathDiagnosticConsumers &C, 71c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const std::string &prefix, 72c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const Preprocessor &PP) { 739fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createHTMLDiagnosticConsumer(AnalyzerOpts, C, 749fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek llvm::sys::path::parent_path(prefix), PP); 759fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createPlistDiagnosticConsumer(AnalyzerOpts, C, prefix, PP); 76f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek} 77f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 78c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremeneknamespace { 79c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekclass ClangDiagPathDiagConsumer : public PathDiagnosticConsumer { 80c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticsEngine &Diag; 81c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekpublic: 82c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek ClangDiagPathDiagConsumer(DiagnosticsEngine &Diag) : Diag(Diag) {} 83c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual ~ClangDiagPathDiagConsumer() {} 84c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual StringRef getName() const { return "ClangDiags"; } 85c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual PathGenerationScheme getGenerationScheme() const { return None; } 86c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 87c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek void FlushDiagnosticsImpl(std::vector<const PathDiagnostic *> &Diags, 88c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek FilesMade *filesMade) { 89c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (std::vector<const PathDiagnostic*>::iterator I = Diags.begin(), 90c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Diags.end(); I != E; ++I) { 91c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const PathDiagnostic *PD = *I; 923a46f5fd1709f6df03bbb8b0abf84052dc0f39ffJordan Rose StringRef desc = PD->getShortDescription(); 93c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek SmallString<512> TmpStr; 94c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek llvm::raw_svector_ostream Out(TmpStr); 95c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (StringRef::iterator I=desc.begin(), E=desc.end(); I!=E; ++I) { 96c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek if (*I == '%') 97c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out << "%%"; 98c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek else 99c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out << *I; 100c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 101c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out.flush(); 102c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek unsigned ErrorDiag = Diag.getCustomDiagID(DiagnosticsEngine::Warning, 103c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek TmpStr); 104c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek SourceLocation L = PD->getLocation().asLocation(); 105c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticBuilder diagBuilder = Diag.Report(L, ErrorDiag); 106c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 107c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Get the ranges from the last point in the path. 108c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek ArrayRef<SourceRange> Ranges = PD->path.back()->getRanges(); 109c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 110c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (ArrayRef<SourceRange>::iterator I = Ranges.begin(), 111c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Ranges.end(); I != E; ++I) { 112c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek diagBuilder << *I; 113c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 114c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 115c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 116c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek}; 117c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek} // end anonymous namespace 118c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 119f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 120f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer declaration. 121f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 122f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 123f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremeneknamespace { 124f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 125aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksclass AnalysisConsumer : public ASTConsumer, 126aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks public RecursiveASTVisitor<AnalysisConsumer> { 1274eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose enum { 1284eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_None = 0, 1294eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Syntax = 0x1, 1304eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Path = 0x2 131aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks }; 1324eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose typedef unsigned AnalysisMode; 133aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 134aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Mode of the analyzes while recursively visiting Decls. 135aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks AnalysisMode RecVisitorMode; 136aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Bug Reporter to use while recursively visiting Decls. 137aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks BugReporter *RecVisitorBR; 138aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 139ed8afacb8118b71bcfa8017059e51da325e7691bZhongxing Xupublic: 1409c378f705405d37f49795d5e915989de774fe11fTed Kremenek ASTContext *Ctx; 1411d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const Preprocessor &PP; 1421d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string OutDir; 14345796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef Opts; 14408b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> Plugins; 145d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1466a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Stores the declarations from the local translation unit. 1476a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// Note, we pre-compute the local declarations at parse time as an 1486a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// optimization to make sure we do not deserialize everything from disk. 1496a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// The local declaration to all declarations ratio might be very small when 1506a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// working with a PCH file. 1516a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfDecls LocalTUDecls; 152cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek 153c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Set of PathDiagnosticConsumers. Owned by AnalysisManager. 154c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathDiagnosticConsumers PathConsumers; 155d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1561d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek StoreManagerCreator CreateStoreMgr; 1571d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek ConstraintManagerCreator CreateConstraintMgr; 158f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 1596f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<CheckerManager> checkerMgr; 1606f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<AnalysisManager> Mgr; 161c471e7b44e63ff1b46b480e723c4130aeaef5a8aZhongxing Xu 162d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks /// Time the analyzes time of each translation unit. 163d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks static llvm::Timer* TUTotalTimer; 164d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 1653bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// The information about analyzed functions shared throughout the 1663bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// translation unit. 1673bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks FunctionSummariesTy FunctionSummaries; 1683bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks 1691d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek AnalysisConsumer(const Preprocessor& pp, 1701d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string& outdir, 17145796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 17208b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) 1734eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose : RecVisitorMode(0), RecVisitorBR(0), 174c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Ctx(0), PP(pp), OutDir(outdir), Opts(opts), Plugins(plugins) { 1751d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek DigestAnalyzerOptions(); 17645796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) { 177d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks llvm::EnableStatistics(); 178d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks TUTotalTimer = new llvm::Timer("Analyzer Total Time"); 179d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 180d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 181d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 182d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks ~AnalysisConsumer() { 18345796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) 184d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks delete TUTotalTimer; 1851d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 186fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 1871d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek void DigestAnalyzerOptions() { 188ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Create the PathDiagnosticConsumer. 189c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers.push_back(new ClangDiagPathDiagConsumer(PP.getDiagnostics())); 190c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 1911d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek if (!OutDir.empty()) { 19245796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisDiagOpt) { 1931d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek default: 194fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATEFN, AUTOCREATE) \ 1959fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek case PD_##NAME: CREATEFN(*Opts.getPtr(), PathConsumers, OutDir, PP);\ 1969fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek break; 197987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 198fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 19945796b10d11869e86c6b85e24df165410536b313Ted Kremenek } else if (Opts->AnalysisDiagOpt == PD_TEXT) { 200a599ae8826b01c0160a519b0fc5a4871f599bf04Argyrios Kyrtzidis // Create the text client even without a specified output file since 201a599ae8826b01c0160a519b0fc5a4871f599bf04Argyrios Kyrtzidis // it just uses diagnostic notes. 2029fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createTextPathDiagnosticConsumer(*Opts.getPtr(), PathConsumers, "", PP); 2031d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 204fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 2051d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek // Create the analyzer component creators. 20645796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisStoreOpt) { 2075f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 208b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown store manager."); 209fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATEFN) \ 2105f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateStoreMgr = CREATEFN; break; 211987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 2121d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21445796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisConstraintsOpt) { 2155f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 2161c32b81765ed63ae9e3e00e5acef7a4379bba228Anna Zaks llvm_unreachable("Unknown constraint manager."); 217fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATEFN) \ 2185f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateConstraintMgr = CREATEFN; break; 219987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 220fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 2211d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 222f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 223a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks void DisplayFunction(const Decl *D, AnalysisMode Mode, 224a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks ExprEngine::InliningModes IMode) { 22545796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzerDisplayProgress) 2261d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek return; 227f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 228fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek SourceManager &SM = Mgr->getASTContext().getSourceManager(); 229fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek PresumedLoc Loc = SM.getPresumedLoc(D->getLocation()); 230cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (Loc.isValid()) { 231aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << "ANALYZE"; 2324eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 2334eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_Syntax) 2344eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose llvm::errs() << " (Syntax)"; 235a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks else if (Mode == AM_Path) { 236a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks llvm::errs() << " (Path, "; 237a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks switch (IMode) { 2388a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks case ExprEngine::Inline_Minimal: 2398a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks llvm::errs() << " Inline_Minimal"; 240a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks break; 2418a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks case ExprEngine::Inline_Regular: 2428a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks llvm::errs() << " Inline_Regular"; 243a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks break; 244a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks } 245a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks llvm::errs() << ")"; 246a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks } 2474eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose else 2484eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose assert(Mode == (AM_Syntax | AM_Path) && "Unexpected mode!"); 2494eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 250aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << ": " << Loc.getFilename(); 251cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (isa<FunctionDecl>(D) || isa<ObjCMethodDecl>(D)) { 252cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor const NamedDecl *ND = cast<NamedDecl>(D); 253b8989f27f116ff2400e92a52c067a69846119eb5Benjamin Kramer llvm::errs() << ' ' << *ND << '\n'; 254cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 255cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (isa<BlockDecl>(D)) { 256cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << "block(line:" << Loc.getLine() << ",col:" 257cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor << Loc.getColumn() << '\n'; 258cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 259cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 260cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor Selector S = MD->getSelector(); 261cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << S.getAsString(); 262cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 26335fa76d0bb6fb8c86159a7506efd094a4fe376d2Ted Kremenek } 2641d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2661d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek virtual void Initialize(ASTContext &Context) { 2671d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek Ctx = &Context; 26845796b10d11869e86c6b85e24df165410536b313Ted Kremenek checkerMgr.reset(createCheckerManager(*Opts, PP.getLangOpts(), Plugins, 26908b86531ade68727c56918f162816075b87c864aJordy Rose PP.getDiagnostics())); 270c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Mgr.reset(new AnalysisManager(*Ctx, 271c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getDiagnostics(), 272c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getLangOpts(), 273c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers, 274c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateStoreMgr, 275c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateConstraintMgr, 27643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis checkerMgr.get(), 27745796b10d11869e86c6b85e24df165410536b313Ted Kremenek *Opts)); 2781d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2806a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Store the top level decls in the set to be processed later on. 2816a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// (Doing this pre-processing avoids deserialization of data from PCH.) 2826a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks virtual bool HandleTopLevelDecl(DeclGroupRef D); 2836a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D); 2846a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 2851d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek virtual void HandleTranslationUnit(ASTContext &C); 28614cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenek 28775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks /// \brief Determine which inlining mode should be used when this function is 2888a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks /// analyzed. This allows to redefine the default inlining policies when 2898a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks /// analyzing a given function. 29075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes 291b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks getInliningModeForFunction(const Decl *D, SetOfConstDecls Visited); 29275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 2936a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Build the call graph for all the top level decls of this TU and 2946a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// use it to define the order in which the functions should be visited. 295469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose void HandleDeclsCallGraph(const unsigned LocalTUDeclsSize); 296aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 297aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \brief Run analyzes(syntax or path sensitive) on the given function. 298aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param Mode - determines if we are requesting syntax only or path 299aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// sensitive only analysis. 300aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param VisitedCallees - The output parameter, which is populated with the 301aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// set of functions which should be considered analyzed after analyzing the 302aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// given root function. 3036a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void HandleCode(Decl *D, AnalysisMode Mode, 3048a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks ExprEngine::InliningModes IMode = ExprEngine::Inline_Minimal, 3056a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees = 0); 306aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 30775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks void RunPathSensitiveChecks(Decl *D, 30875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 30975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks SetOfConstDecls *VisitedCallees); 3106a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void ActionExprEngine(Decl *D, bool ObjCGCEnabled, 31175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 3126a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees); 313aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 314aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Visitors for the RecursiveASTVisitor. 315c8848f34bbde083b8d89f445eb605eaabf30d6a8Anna Zaks bool shouldWalkTypesOfTypeLocs() const { return false; } 316aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 317aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Handle callbacks for arbitrary Decls. 318aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitDecl(Decl *D) { 3194eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode Mode = getModeForDecl(D, RecVisitorMode); 3204eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 3214eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose checkerMgr->runCheckersOnASTDecl(D, *Mgr, *RecVisitorBR); 322aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 323aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 324aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 325aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitFunctionDecl(FunctionDecl *FD) { 326aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks IdentifierInfo *II = FD->getIdentifier(); 327aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (II && II->getName().startswith("__inline")) 328aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 329aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 330aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // We skip function template definitions, as their semantics is 331aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // only determined when they are instantiated. 332aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (FD->isThisDeclarationADefinition() && 333aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks !FD->isDependentContext()) { 33475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 335aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(FD, RecVisitorMode); 336aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 337aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 338aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 339aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 340aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitObjCMethodDecl(ObjCMethodDecl *MD) { 34175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (MD->isThisDeclarationADefinition()) { 34275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 343aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(MD, RecVisitorMode); 34475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 345aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 346aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 3474f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks 3484f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks bool VisitBlockDecl(BlockDecl *BD) { 3494f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (BD->hasBody()) { 3504f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 3514f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks HandleCode(BD, RecVisitorMode); 3524f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 3534f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks return true; 3544f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 3556a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3566a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksprivate: 3576a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void storeTopLevelDecls(DeclGroupRef DG); 3586a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3596a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Check if we should skip (not analyze) the given function. 3604eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode getModeForDecl(Decl *D, AnalysisMode Mode); 3616a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3621d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek}; 363f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} // end anonymous namespace 364f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 365aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 366f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 367f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer implementation. 368f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 369d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaksllvm::Timer* AnalysisConsumer::TUTotalTimer = 0; 370f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 3716a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksbool AnalysisConsumer::HandleTopLevelDecl(DeclGroupRef DG) { 3726a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3736a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks return true; 3746a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3756a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3766a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) { 3776a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3786a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3796a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3806a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::storeTopLevelDecls(DeclGroupRef DG) { 3816a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) { 3826a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3836a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Skip ObjCMethodDecl, wait for the objc container to avoid 3846a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // analyzing twice. 3856a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks if (isa<ObjCMethodDecl>(*I)) 3866a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks continue; 3876a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 388577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek LocalTUDecls.push_back(*I); 3896a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks } 3906a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3916a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 392b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaksstatic bool shouldSkipFunction(const Decl *D, 393b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited, 394b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel) { 395b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (VisitedAsTopLevel.count(D)) 39675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks return true; 39775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 39875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to re-analyse the functions as top level in the following cases: 399fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - The 'init' methods should be reanalyzed because 400fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // ObjCNonNilReturnValueChecker assumes that '[super init]' never returns 40175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // 'nil' and unless we analyze the 'init' functions as top level, we will 40275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // not catch errors within defensive code. 403fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - We want to reanalyze all ObjC methods as top level to report Retain 404fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Count naming convention errors more aggressively. 405b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (isa<ObjCMethodDecl>(D)) 406fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks return false; 407fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 408fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Otherwise, if we visited the function before, do not reanalyze it. 409b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks return Visited.count(D); 410fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks} 411fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 41275f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksExprEngine::InliningModes 413b467051a9f212c57335f88f16e839e1dc8afc1c1Anna ZaksAnalysisConsumer::getInliningModeForFunction(const Decl *D, 414b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited) { 41575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to reanalyze all ObjC methods as top level to report Retain 4168a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks // Count naming convention errors more aggressively. But we should tune down 41775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // inlining when reanalyzing an already inlined function. 418b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (Visited.count(D)) { 419b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks assert(isa<ObjCMethodDecl>(D) && 42075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks "We are only reanalyzing ObjCMethods."); 421b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks const ObjCMethodDecl *ObjCM = cast<ObjCMethodDecl>(D); 42275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (ObjCM->getMethodFamily() != OMF_init) 4238a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks return ExprEngine::Inline_Minimal; 42475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 42575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 4268a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks return ExprEngine::Inline_Regular; 42775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks} 42875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 429469ba550f54577f28e23ea42c293308fbcad6609Jordan Rosevoid AnalysisConsumer::HandleDeclsCallGraph(const unsigned LocalTUDeclsSize) { 430bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Build the Call Graph by adding all the top level declarations to the graph. 431694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // Note: CallGraph can trigger deserialization of more items from a pch 432694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // (though HandleInterestingDecl); triggering additions to LocalTUDecls. 433694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // We rely on random access to add the initially processed Decls to CG. 434bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks CallGraph CG; 435694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 436eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks CG.addToCallGraph(LocalTUDecls[i]); 437eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks } 438d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 439bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Walk over all of the call graph nodes in topological order, so that we 440bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // analyze parents before the children. Skip the functions inlined into 441bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // the previously processed functions. Use external Visited set to identify 442bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // inlined functions. The topological order allows the "do not reanalyze 443bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // previously inlined function" performance heuristic to be triggered more 444bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // often. 445b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited; 446b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel; 447bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks llvm::ReversePostOrderTraversal<clang::CallGraph*> RPOT(&CG); 448bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks for (llvm::ReversePostOrderTraversal<clang::CallGraph*>::rpo_iterator 449bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks I = RPOT.begin(), E = RPOT.end(); I != E; ++I) { 450bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks NumFunctionTopLevel++; 451371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek 452bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks CallGraphNode *N = *I; 453b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Decl *D = N->getDecl(); 454bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks 455bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Skip the abstract root node. 456bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks if (!D) 457bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks continue; 458b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks 4597fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Skip the functions which have been processed already or previously 4607fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // inlined. 461b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (shouldSkipFunction(D, Visited, VisitedAsTopLevel)) 4627fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks continue; 4637fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4647fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Analyze the function. 4656a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls VisitedCallees; 46675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 467b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks HandleCode(D, AM_Path, getInliningModeForFunction(D, Visited), 468255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek (Mgr->options.InliningMode == All ? 0 : &VisitedCallees)); 4697fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4707fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Add the visited callees to the global visited set. 471cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek for (SetOfConstDecls::iterator I = VisitedCallees.begin(), 472cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek E = VisitedCallees.end(); I != E; ++I) { 473b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Visited.insert(*I); 4747fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks } 475b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks VisitedAsTopLevel.insert(D); 476d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 477fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek} 478fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek 47914cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenekvoid AnalysisConsumer::HandleTranslationUnit(ASTContext &C) { 480aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Don't run the actions if an error has occurred with parsing the file. 481aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DiagnosticsEngine &Diags = PP.getDiagnostics(); 482aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Diags.hasErrorOccurred() || Diags.hasFatalErrorOccurred()) 483aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return; 484aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 485c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks { 486d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->startTimer(); 487d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 488c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // Introduce a scope to destroy BR before Mgr. 489c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks BugReporter BR(*Mgr); 490c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks TranslationUnitDecl *TU = C.getTranslationUnitDecl(); 491c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnASTDecl(TU, *Mgr, BR); 492aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 493aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Run the AST-only checks using the order in which functions are defined. 494aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // If inlining is not turned on, use the simplest function order for path 495aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // sensitive analyzes as well. 4964eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode = AM_Syntax; 4974eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Mgr->shouldInlineCall()) 4984eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode |= AM_Path; 499aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = &BR; 5006a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 5016a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Process all the top level declarations. 502cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek // 503577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // Note: TraverseDecl may modify LocalTUDecls, but only by appending more 504577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // entries. Thus we don't use an iterator, but rely on LocalTUDecls 505577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // random access. By doing so, we automatically compensate for iterators 506577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // possibly being invalidated, although this is a bit slower. 507694a942b0a14e02757a695142c45437eec6e3684Anna Zaks const unsigned LocalTUDeclsSize = LocalTUDecls.size(); 508694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 509577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek TraverseDecl(LocalTUDecls[i]); 510cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek } 511aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 512aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Mgr->shouldInlineCall()) 513469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose HandleDeclsCallGraph(LocalTUDeclsSize); 514b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 515c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // After all decls handled, run checkers on the entire TranslationUnit. 516c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnEndOfTranslationUnit(TU, *Mgr, BR); 517aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 518aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = 0; 519c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks } 5209be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 521ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Explicitly destroy the PathDiagnosticConsumer. This will flush its output. 522690a7f431d6863a101711e67636d51ddd13f35c5Ted Kremenek // FIXME: This should be replaced with something that doesn't rely on 523ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // side-effects in PathDiagnosticConsumer's destructor. This is required when 524da17fd50ad485fd2a1fc5c2f055caacf532992daZhongxing Xu // used with option -disable-free. 525d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu Mgr.reset(NULL); 526d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 527d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->stopTimer(); 5286b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 5296b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks // Count how many basic blocks we have not covered. 5306b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions = FunctionSummaries.getTotalNumBasicBlocks(); 5316b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks if (NumBlocksInAnalyzedFunctions > 0) 5326b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks PercentReachableBlocks = 5336b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks (FunctionSummaries.getTotalNumVisitedBasicBlocks() * 100) / 5346b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions; 5356b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 536db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek} 537db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek 538d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksstatic std::string getFunctionName(const Decl *D) { 539d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const ObjCMethodDecl *ID = dyn_cast<ObjCMethodDecl>(D)) { 540d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ID->getSelector().getAsString(); 541d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 542d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const FunctionDecl *ND = dyn_cast<FunctionDecl>(D)) { 543d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks IdentifierInfo *II = ND->getIdentifier(); 544d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (II) 545d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return II->getName(); 546d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 547d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ""; 548d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks} 549d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 5504eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::AnalysisMode 5514eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::getModeForDecl(Decl *D, AnalysisMode Mode) { 55245796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzeSpecificFunction.empty() && 55345796b10d11869e86c6b85e24df165410536b313Ted Kremenek getFunctionName(D) != Opts->AnalyzeSpecificFunction) 5544eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5564eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // Unless -analyze-all is specified, treat decls differently depending on 5574eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // where they came from: 5584eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Main source file: run both path-sensitive and non-path-sensitive checks. 5594eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Header files: run non-path-sensitive checks only. 5604eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - System headers: don't run any checks. 561fcd783d583d270b7ec1ec3e0fcf83cd93d30e381Ted Kremenek SourceManager &SM = Ctx->getSourceManager(); 562402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth SourceLocation SL = SM.getExpansionLoc(D->getLocation()); 5634eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Opts->AnalyzeAll && !SM.isFromMainFile(SL)) { 5644eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (SL.isInvalid() || SM.isInSystemHeader(SL)) 5654eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5664eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode & ~AM_Path; 5674eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose } 56898520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 5694eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode; 57098520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks} 57198520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 572aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksvoid AnalysisConsumer::HandleCode(Decl *D, AnalysisMode Mode, 57375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 5746a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 5754f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (!D->hasBody()) 5764f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks return; 5774eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose Mode = getModeForDecl(D, Mode); 5784eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_None) 5791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return; 580f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 581a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks DisplayFunction(D, Mode, IMode); 58284c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks CFG *DeclCFG = Mgr->getCFG(D); 58384c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks if (DeclCFG) { 58484c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks unsigned CFGSize = DeclCFG->size(); 58584c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks MaxCFGSize = MaxCFGSize < CFGSize ? CFGSize : MaxCFGSize; 58684c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks } 58784c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks 5881d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek // Clear the AnalysisManager of old AnalysisDeclContexts. 58958f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Mgr->ClearContexts(); 5909fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis BugReporter BR(*Mgr); 5914f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks 5924f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (Mode & AM_Syntax) 5934f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks checkerMgr->runCheckersOnASTBody(D, *Mgr, BR); 5944f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if ((Mode & AM_Path) && checkerMgr->hasPathSensitiveCheckers()) { 5954f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks RunPathSensitiveChecks(D, IMode, VisitedCallees); 5968a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks if (IMode != ExprEngine::Inline_Minimal) 5974f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks NumFunctionsAnalyzed++; 5984f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 599f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 600f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 601f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 602d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis// Path-sensitive checking. 603f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 604f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6053fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaksvoid AnalysisConsumer::ActionExprEngine(Decl *D, bool ObjCGCEnabled, 60675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6076a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 608a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Construct the analysis engine. First check if the CFG is valid. 60975d03cffe20b5c945ef04eba208efb0437339997Ted Kremenek // FIXME: Inter-procedural analysis will need to handle invalid CFGs. 6103fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks if (!Mgr->getCFG(D)) 611f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek return; 6123fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks 613d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek // See if the LiveVariables analysis scales. 614d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek if (!Mgr->getAnalysisDeclContext(D)->getAnalysis<RelaxedLiveVariables>()) 615d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek return; 616d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek 61775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine Eng(*Mgr, ObjCGCEnabled, VisitedCallees, &FunctionSummaries,IMode); 618f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 619f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Set the graph auditor. 6206f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<ExplodedNode::Auditor> Auditor; 6213b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithUbiGraph) { 622f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Auditor.reset(CreateUbiViz()); 623c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(Auditor.get()); 624f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 6251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 626b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek // Execute the worklist algorithm. 627d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose Eng.ExecuteWorkList(Mgr->getAnalysisDeclContextManager().getStackFrame(D), 628ac3a3e7a402cd349dd2b7d70cd92c5fe702ae831Anna Zaks Mgr->options.getMaxNodesPerTopLevelFunction()); 6291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 630f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Release the auditor (if any) so that it doesn't monitor the graph 631f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // created BugReporter. 632c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(0); 6333df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek 63434d7734b6ed1d9c0f647405e065251eb67f42badTed Kremenek // Visualize the exploded graph. 6353b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithGraphViz) 636255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Eng.ViewGraph(Mgr->options.TrimGraph); 6371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6383df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek // Display warnings. 6393df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek Eng.getBugReporter().FlushReports(); 640bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek} 641bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek 6426a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::RunPathSensitiveChecks(Decl *D, 64375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6446a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *Visited) { 64517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 6464e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie switch (Mgr->getLangOpts().getGC()) { 64717a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::NonGC: 64875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 64917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 65017a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 65117a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::GCOnly: 65275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 65317a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 65417a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 65517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::HybridGC: 65675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 65775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 65817a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 65917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose } 660b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek} 661b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek 662f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 663f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer creation. 664f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 665f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6669ef6537a894c33003359b1f9b9676e9178e028b7Ted KremenekASTConsumer* ento::CreateAnalysisConsumer(const Preprocessor& pp, 66708b86531ade68727c56918f162816075b87c864aJordy Rose const std::string& outDir, 66845796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 66908b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) { 67008b86531ade68727c56918f162816075b87c864aJordy Rose // Disable the effects of '-Werror' when using the AnalysisConsumer. 671efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar pp.getDiagnostics().setWarningsAsErrors(false); 672be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek 67308b86531ade68727c56918f162816075b87c864aJordy Rose return new AnalysisConsumer(pp, outDir, opts, plugins); 674f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 675f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 676f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 677f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek// Ubigraph Visualization. FIXME: Move to separate file. 678f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 679f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 680f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremeneknamespace { 6811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 682c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass UbigraphViz : public ExplodedNode::Auditor { 6836f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<raw_ostream> Out; 684d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola std::string Filename; 685f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned Cntr; 686f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 687f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek typedef llvm::DenseMap<void*,unsigned> VMap; 688f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap M; 6891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 690f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenekpublic: 691d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola UbigraphViz(raw_ostream *Out, StringRef Filename); 6921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 693710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek ~UbigraphViz(); 6941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6959c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst); 696f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek}; 6971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 698f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} // end anonymous namespace 699f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 700c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz() { 701b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola SmallString<128> P; 702b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola int FD; 703b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola llvm::sys::fs::unique_file("llvm_ubi-%%%%%%", FD, P); 704b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola llvm::errs() << "Writing '" << P.str() << "'.\n"; 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7066f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<llvm::raw_fd_ostream> Stream; 707b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola Stream.reset(new llvm::raw_fd_ostream(FD, true)); 7081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 709d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola return new UbigraphViz(Stream.take(), P); 710f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 711f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7129c378f705405d37f49795d5e915989de774fe11fTed Kremenekvoid UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) { 7131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 71445479c88c8a44c55d27c3bd855273bb318082f37Ted Kremenek assert (Src != Dst && "Self-edges are not allowed."); 7151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 716f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Src. If it is a new node, it's a root. 717f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator SrcI= M.find(Src); 718f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned SrcID; 7191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 720f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (SrcI == M.end()) { 721f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Src] = SrcID = Cntr++; 722f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << SrcID << ", ('color','#00ff00'))\n"; 723f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 724f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek else 725f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek SrcID = SrcI->second; 7261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 727f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Dst. 728f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator DstI= M.find(Dst); 729f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned DstID; 730f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 731f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (DstI == M.end()) { 732f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Dst] = DstID = Cntr++; 733f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << DstID << ")\n"; 734f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 73556b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek else { 73656b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek // We have hit DstID before. Change its style to reflect a cache hit. 737f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek DstID = DstI->second; 73856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('change_vertex_style', " << DstID << ", 1)\n"; 73956b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek } 740f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 741f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Add the edge. 7421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump *Out << "('edge', " << SrcID << ", " << DstID 743d1289327f7d2126d732e23cc189ecd0aa5d07cbbTed Kremenek << ", ('arrow','true'), ('oriented', 'true'))\n"; 744f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 745f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 746d2a5bee210218220a57d9f61a66e7f766a21d313Rafael EspindolaUbigraphViz::UbigraphViz(raw_ostream *Out, StringRef Filename) 747d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola : Out(Out), Filename(Filename), Cntr(0) { 74856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 74956b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n"; 75056b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66')," 75156b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek " ('size', '1.5'))\n"; 75256b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek} 75356b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 754710ad9343f32b33b336369b20edad1a21a0b3299Ted KremenekUbigraphViz::~UbigraphViz() { 755710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek Out.reset(0); 7566cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Running 'ubiviz' program... "; 757710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::string ErrMsg; 7582289933d3dfad854c006c02738abb1c57d1d587eRafael Espindola std::string Ubiviz = llvm::sys::FindProgramByName("ubiviz"); 759710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::vector<const char*> args; 760710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Ubiviz.c_str()); 761710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Filename.c_str()); 762710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(0); 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 76457a3bbfa9a97f174b0c80b0309e32f4329c4ae1bRafael Espindola if (llvm::sys::ExecuteAndWait(Ubiviz, &args[0], 0, 0, 0, 0, &ErrMsg)) { 7656cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Error viewing graph: " << ErrMsg << "\n"; 766710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek } 7671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 768d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola // Delete the file. 769d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola llvm::sys::fs::remove(Filename); 770932680ecdeab4c216ce7c0736093d3dcd2f60f6dDaniel Dunbar} 771