AnalysisConsumer.cpp revision 4eff6b5d6a5cbb6bd669854a84365aa61d70819e
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" 23efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/Analysis/CFG.h" 24d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#include "clang/Analysis/CallGraph.h" 25371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek#include "clang/Analysis/Analyses/LiveVariables.h" 2627af04bcca46f8a3374586be1301477f9123f5e1Argyrios Kyrtzidis#include "clang/StaticAnalyzer/Frontend/CheckerRegistration.h" 2743dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include "clang/StaticAnalyzer/Core/CheckerManager.h" 2821142581d55918beed544a757e4af3bb865b1812Ted Kremenek#include "clang/StaticAnalyzer/Checkers/LocalCheckers.h" 299b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h" 309b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h" 319b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h" 329b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h" 33f39d962cf84f46d2c0512157259ae1d41a1a5173David Blaikie#include "clang/StaticAnalyzer/Core/PathDiagnosticConsumers.h" 34a7af5ea88a6c5bdf87497cca6c20831e8c546751Argyrios Kyrtzidis 35efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/Basic/FileManager.h" 36efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/Basic/SourceManager.h" 37987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 38efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/Lex/Preprocessor.h" 39f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek#include "llvm/Support/raw_ostream.h" 4003013fa9a0bf1ef4b907f5fec006c8f4000fdd21Michael J. Spencer#include "llvm/Support/Path.h" 4103013fa9a0bf1ef4b907f5fec006c8f4000fdd21Michael J. Spencer#include "llvm/Support/Program.h" 42d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks#include "llvm/Support/Timer.h" 43d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#include "llvm/ADT/DepthFirstIterator.h" 446cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer#include "llvm/ADT/OwningPtr.h" 456a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks#include "llvm/ADT/SmallPtrSet.h" 4681fb169f42769e02c7425b23885a261c025fd5e6Anna Zaks#include "llvm/ADT/Statistic.h" 47db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek 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."); 57d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna ZaksSTATISTIC(NumFunctionsAnalyzed, "The # of functions analysed (as top level)."); 58e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(NumBlocksInAnalyzedFunctions, 59e62f048960645b79363408fdead53fec2a063c52Anna Zaks "The # of basic blocks in the analyzed functions."); 60e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(PercentReachableBlocks, "The % of reachable basic blocks."); 6184c1f4b1edddf74f8080cfc470796c2c498b5d43Anna ZaksSTATISTIC(MaxCFGSize, "The maximum number of basic blocks in a function."); 62d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 63be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek//===----------------------------------------------------------------------===// 64f39d962cf84f46d2c0512157259ae1d41a1a5173David Blaikie// Special PathDiagnosticConsumers. 65f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 66f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 67c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekstatic void createPlistHTMLDiagnosticConsumer(PathDiagnosticConsumers &C, 68c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const std::string &prefix, 69c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const Preprocessor &PP) { 70c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek createHTMLDiagnosticConsumer(C, llvm::sys::path::parent_path(prefix), PP); 71c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek createPlistDiagnosticConsumer(C, prefix, PP); 72f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek} 73f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 74c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremeneknamespace { 75c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekclass ClangDiagPathDiagConsumer : public PathDiagnosticConsumer { 76c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticsEngine &Diag; 77c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekpublic: 78c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek ClangDiagPathDiagConsumer(DiagnosticsEngine &Diag) : Diag(Diag) {} 79c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual ~ClangDiagPathDiagConsumer() {} 80c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual StringRef getName() const { return "ClangDiags"; } 81c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual PathGenerationScheme getGenerationScheme() const { return None; } 82c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 83c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek void FlushDiagnosticsImpl(std::vector<const PathDiagnostic *> &Diags, 84c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek FilesMade *filesMade) { 85c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (std::vector<const PathDiagnostic*>::iterator I = Diags.begin(), 86c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Diags.end(); I != E; ++I) { 87c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const PathDiagnostic *PD = *I; 883a46f5fd1709f6df03bbb8b0abf84052dc0f39ffJordan Rose StringRef desc = PD->getShortDescription(); 89c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek SmallString<512> TmpStr; 90c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek llvm::raw_svector_ostream Out(TmpStr); 91c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (StringRef::iterator I=desc.begin(), E=desc.end(); I!=E; ++I) { 92c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek if (*I == '%') 93c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out << "%%"; 94c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek else 95c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out << *I; 96c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 97c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Out.flush(); 98c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek unsigned ErrorDiag = Diag.getCustomDiagID(DiagnosticsEngine::Warning, 99c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek TmpStr); 100c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek SourceLocation L = PD->getLocation().asLocation(); 101c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticBuilder diagBuilder = Diag.Report(L, ErrorDiag); 102c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 103c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Get the ranges from the last point in the path. 104c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek ArrayRef<SourceRange> Ranges = PD->path.back()->getRanges(); 105c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 106c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (ArrayRef<SourceRange>::iterator I = Ranges.begin(), 107c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Ranges.end(); I != E; ++I) { 108c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek diagBuilder << *I; 109c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 110c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 111c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 112c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek}; 113c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek} // end anonymous namespace 114c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 115f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 116f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer declaration. 117f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 118f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 119f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremeneknamespace { 120f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 121aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksclass AnalysisConsumer : public ASTConsumer, 122aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks public RecursiveASTVisitor<AnalysisConsumer> { 1234eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose enum { 1244eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_None = 0, 1254eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Syntax = 0x1, 1264eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Path = 0x2 127aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks }; 1284eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose typedef unsigned AnalysisMode; 129aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 130aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Mode of the analyzes while recursively visiting Decls. 131aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks AnalysisMode RecVisitorMode; 132aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Bug Reporter to use while recursively visiting Decls. 133aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks BugReporter *RecVisitorBR; 134aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 135ed8afacb8118b71bcfa8017059e51da325e7691bZhongxing Xupublic: 1369c378f705405d37f49795d5e915989de774fe11fTed Kremenek ASTContext *Ctx; 1371d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const Preprocessor &PP; 1381d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string OutDir; 13945796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef Opts; 14008b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> Plugins; 141d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1426a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Stores the declarations from the local translation unit. 1436a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// Note, we pre-compute the local declarations at parse time as an 1446a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// optimization to make sure we do not deserialize everything from disk. 1456a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// The local declaration to all declarations ratio might be very small when 1466a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// working with a PCH file. 1476a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfDecls LocalTUDecls; 148cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek 149c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Set of PathDiagnosticConsumers. Owned by AnalysisManager. 150c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathDiagnosticConsumers PathConsumers; 151d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1521d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek StoreManagerCreator CreateStoreMgr; 1531d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek ConstraintManagerCreator CreateConstraintMgr; 154f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 1556f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<CheckerManager> checkerMgr; 1566f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<AnalysisManager> Mgr; 157c471e7b44e63ff1b46b480e723c4130aeaef5a8aZhongxing Xu 158d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks /// Time the analyzes time of each translation unit. 159d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks static llvm::Timer* TUTotalTimer; 160d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 1613bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// The information about analyzed functions shared throughout the 1623bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// translation unit. 1633bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks FunctionSummariesTy FunctionSummaries; 1643bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks 1651d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek AnalysisConsumer(const Preprocessor& pp, 1661d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string& outdir, 16745796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 16808b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) 1694eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose : RecVisitorMode(0), RecVisitorBR(0), 170c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Ctx(0), PP(pp), OutDir(outdir), Opts(opts), Plugins(plugins) { 1711d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek DigestAnalyzerOptions(); 17245796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) { 173d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks llvm::EnableStatistics(); 174d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks TUTotalTimer = new llvm::Timer("Analyzer Total Time"); 175d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 176d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 177d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 178d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks ~AnalysisConsumer() { 17945796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) 180d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks delete TUTotalTimer; 1811d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 182fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 1831d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek void DigestAnalyzerOptions() { 184ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Create the PathDiagnosticConsumer. 185c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers.push_back(new ClangDiagPathDiagConsumer(PP.getDiagnostics())); 186c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 1871d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek if (!OutDir.empty()) { 18845796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisDiagOpt) { 1891d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek default: 190fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATEFN, AUTOCREATE) \ 191c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek case PD_##NAME: CREATEFN(PathConsumers, OutDir, PP); break; 192987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 193fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 19445796b10d11869e86c6b85e24df165410536b313Ted Kremenek } else if (Opts->AnalysisDiagOpt == PD_TEXT) { 195a599ae8826b01c0160a519b0fc5a4871f599bf04Argyrios Kyrtzidis // Create the text client even without a specified output file since 196a599ae8826b01c0160a519b0fc5a4871f599bf04Argyrios Kyrtzidis // it just uses diagnostic notes. 197c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek createTextPathDiagnosticConsumer(PathConsumers, "", PP); 1981d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 199fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 2001d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek // Create the analyzer component creators. 20145796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisStoreOpt) { 2025f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 203b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown store manager."); 204fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATEFN) \ 2055f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateStoreMgr = CREATEFN; break; 206987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 2071d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20945796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisConstraintsOpt) { 2105f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 211b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown store manager."); 212fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATEFN) \ 2135f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateConstraintMgr = CREATEFN; break; 214987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 215fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 2161d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 217f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 218aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks void DisplayFunction(const Decl *D, AnalysisMode Mode) { 21945796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzerDisplayProgress) 2201d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek return; 221f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 222fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek SourceManager &SM = Mgr->getASTContext().getSourceManager(); 223fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek PresumedLoc Loc = SM.getPresumedLoc(D->getLocation()); 224cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (Loc.isValid()) { 225aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << "ANALYZE"; 2264eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 2274eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_Syntax) 2284eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose llvm::errs() << " (Syntax)"; 2294eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose else if (Mode == AM_Path) 2304eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose llvm::errs() << " (Path)"; 2314eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose else 2324eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose assert(Mode == (AM_Syntax | AM_Path) && "Unexpected mode!"); 2334eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 234aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << ": " << Loc.getFilename(); 235cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (isa<FunctionDecl>(D) || isa<ObjCMethodDecl>(D)) { 236cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor const NamedDecl *ND = cast<NamedDecl>(D); 237b8989f27f116ff2400e92a52c067a69846119eb5Benjamin Kramer llvm::errs() << ' ' << *ND << '\n'; 238cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 239cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (isa<BlockDecl>(D)) { 240cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << "block(line:" << Loc.getLine() << ",col:" 241cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor << Loc.getColumn() << '\n'; 242cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 243cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 244cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor Selector S = MD->getSelector(); 245cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << S.getAsString(); 246cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 24735fa76d0bb6fb8c86159a7506efd094a4fe376d2Ted Kremenek } 2481d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2501d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek virtual void Initialize(ASTContext &Context) { 2511d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek Ctx = &Context; 25245796b10d11869e86c6b85e24df165410536b313Ted Kremenek checkerMgr.reset(createCheckerManager(*Opts, PP.getLangOpts(), Plugins, 25308b86531ade68727c56918f162816075b87c864aJordy Rose PP.getDiagnostics())); 254c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Mgr.reset(new AnalysisManager(*Ctx, 255c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getDiagnostics(), 256c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getLangOpts(), 257c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers, 258c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateStoreMgr, 259c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateConstraintMgr, 26043dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis checkerMgr.get(), 26145796b10d11869e86c6b85e24df165410536b313Ted Kremenek *Opts)); 2621d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2646a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Store the top level decls in the set to be processed later on. 2656a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// (Doing this pre-processing avoids deserialization of data from PCH.) 2666a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks virtual bool HandleTopLevelDecl(DeclGroupRef D); 2676a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks virtual void HandleTopLevelDeclInObjCContainer(DeclGroupRef D); 2686a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 2691d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek virtual void HandleTranslationUnit(ASTContext &C); 27014cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenek 2716a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Build the call graph for all the top level decls of this TU and 2726a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// use it to define the order in which the functions should be visited. 273469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose void HandleDeclsCallGraph(const unsigned LocalTUDeclsSize); 274aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 275aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \brief Run analyzes(syntax or path sensitive) on the given function. 276aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param Mode - determines if we are requesting syntax only or path 277aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// sensitive only analysis. 278aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param VisitedCallees - The output parameter, which is populated with the 279aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// set of functions which should be considered analyzed after analyzing the 280aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// given root function. 2816a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void HandleCode(Decl *D, AnalysisMode Mode, 2826a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees = 0); 283aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 2846a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void RunPathSensitiveChecks(Decl *D, SetOfConstDecls *VisitedCallees); 2856a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void ActionExprEngine(Decl *D, bool ObjCGCEnabled, 2866a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees); 287aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 288aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Visitors for the RecursiveASTVisitor. 289c8848f34bbde083b8d89f445eb605eaabf30d6a8Anna Zaks bool shouldWalkTypesOfTypeLocs() const { return false; } 290aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 291aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Handle callbacks for arbitrary Decls. 292aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitDecl(Decl *D) { 2934eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode Mode = getModeForDecl(D, RecVisitorMode); 2944eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 2954eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose checkerMgr->runCheckersOnASTDecl(D, *Mgr, *RecVisitorBR); 296aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 297aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 298aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 299aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitFunctionDecl(FunctionDecl *FD) { 300aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks IdentifierInfo *II = FD->getIdentifier(); 301aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (II && II->getName().startswith("__inline")) 302aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 303aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 304aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // We skip function template definitions, as their semantics is 305aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // only determined when they are instantiated. 306aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (FD->isThisDeclarationADefinition() && 307aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks !FD->isDependentContext()) { 308aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(FD, RecVisitorMode); 309aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 310aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 311aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 312aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 313aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitObjCMethodDecl(ObjCMethodDecl *MD) { 314aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (MD->isThisDeclarationADefinition()) 315aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(MD, RecVisitorMode); 316aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 317aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 3186a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3196a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksprivate: 3206a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void storeTopLevelDecls(DeclGroupRef DG); 3216a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3226a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Check if we should skip (not analyze) the given function. 3234eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode getModeForDecl(Decl *D, AnalysisMode Mode); 3246a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3251d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek}; 326f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} // end anonymous namespace 327f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 328aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 329f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 330f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer implementation. 331f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 332d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaksllvm::Timer* AnalysisConsumer::TUTotalTimer = 0; 333f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 3346a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksbool AnalysisConsumer::HandleTopLevelDecl(DeclGroupRef DG) { 3356a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3366a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks return true; 3376a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3386a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3396a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) { 3406a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3416a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3426a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3436a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::storeTopLevelDecls(DeclGroupRef DG) { 3446a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) { 3456a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3466a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Skip ObjCMethodDecl, wait for the objc container to avoid 3476a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // analyzing twice. 3486a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks if (isa<ObjCMethodDecl>(*I)) 3496a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks continue; 3506a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 351577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek LocalTUDecls.push_back(*I); 3526a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks } 3536a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3546a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 355fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaksstatic bool shouldSkipFunction(CallGraphNode *N, 356fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks SmallPtrSet<CallGraphNode*,24> Visited) { 357fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // We want to re-analyse the functions as top level in several cases: 358fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - The 'init' methods should be reanalyzed because 359fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // ObjCNonNilReturnValueChecker assumes that '[super init]' never returns 360fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // 'nil' and unless we analyze the 'init' functions as top level, we will not 361fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // catch errors within defensive code. 362fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - We want to reanalyze all ObjC methods as top level to report Retain 363fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Count naming convention errors more aggressively. 364fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks if (isa<ObjCMethodDecl>(N->getDecl())) 365fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks return false; 366fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 367fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Otherwise, if we visited the function before, do not reanalyze it. 368fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks return Visited.count(N); 369fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks} 370fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 371469ba550f54577f28e23ea42c293308fbcad6609Jordan Rosevoid AnalysisConsumer::HandleDeclsCallGraph(const unsigned LocalTUDeclsSize) { 372d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // Otherwise, use the Callgraph to derive the order. 373d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // Build the Call Graph. 374d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks CallGraph CG; 375eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks 3766a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Add all the top level declarations to the graph. 377694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // Note: CallGraph can trigger deserialization of more items from a pch 378694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // (though HandleInterestingDecl); triggering additions to LocalTUDecls. 379694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // We rely on random access to add the initially processed Decls to CG. 380694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 381eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks CG.addToCallGraph(LocalTUDecls[i]); 382eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks } 383d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 384d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // Find the top level nodes - children of root + the unreachable (parentless) 385d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // nodes. 3863fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks llvm::SmallVector<CallGraphNode*, 24> TopLevelFunctions; 387b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks for (CallGraph::nodes_iterator TI = CG.parentless_begin(), 388b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks TE = CG.parentless_end(); TI != TE; ++TI) { 389b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks TopLevelFunctions.push_back(*TI); 390b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks NumFunctionTopLevel++; 391b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks } 392d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks CallGraphNode *Entry = CG.getRoot(); 393d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks for (CallGraphNode::iterator I = Entry->begin(), 3943fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks E = Entry->end(); I != E; ++I) { 395d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks TopLevelFunctions.push_back(*I); 3963fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks NumFunctionTopLevel++; 3973fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks } 398d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 399b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // Make sure the nodes are sorted in order reverse of their definition in the 400b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // translation unit. This step is very important for performance. It ensures 401b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // that we analyze the root functions before the externally available 402b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // subroutines. 403cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek std::deque<CallGraphNode*> BFSQueue; 404b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks for (llvm::SmallVector<CallGraphNode*, 24>::reverse_iterator 405b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks TI = TopLevelFunctions.rbegin(), TE = TopLevelFunctions.rend(); 4067fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks TI != TE; ++TI) 407371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek BFSQueue.push_back(*TI); 408d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 4097fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // BFS over all of the functions, while skipping the ones inlined into 4107fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // the previously processed functions. Use external Visited set, which is 411d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // also modified when we inline a function. 412d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks SmallPtrSet<CallGraphNode*,24> Visited; 4137fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks while(!BFSQueue.empty()) { 4147fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks CallGraphNode *N = BFSQueue.front(); 415cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek BFSQueue.pop_front(); 4167fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 417371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek // Push the children into the queue. 418371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek for (CallGraphNode::const_iterator CI = N->begin(), 419371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek CE = N->end(); CI != CE; ++CI) { 420fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks if (!shouldSkipFunction(*CI, Visited)) 421371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek BFSQueue.push_back(*CI); 422371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek } 423371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek 4247fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Skip the functions which have been processed already or previously 4257fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // inlined. 426fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks if (shouldSkipFunction(N, Visited)) 4277fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks continue; 4287fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4297fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Analyze the function. 4306a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls VisitedCallees; 4317fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks Decl *D = N->getDecl(); 4327fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks assert(D); 4334eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose HandleCode(D, AM_Path, 434255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek (Mgr->options.InliningMode == All ? 0 : &VisitedCallees)); 4357fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4367fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Add the visited callees to the global visited set. 437cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek for (SetOfConstDecls::iterator I = VisitedCallees.begin(), 438cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek E = VisitedCallees.end(); I != E; ++I) { 4397fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks CallGraphNode *VN = CG.getNode(*I); 4407fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks if (VN) 4417fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks Visited.insert(VN); 4427fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks } 4437fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks Visited.insert(N); 444d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 445fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek} 446fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek 44714cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenekvoid AnalysisConsumer::HandleTranslationUnit(ASTContext &C) { 448aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Don't run the actions if an error has occurred with parsing the file. 449aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DiagnosticsEngine &Diags = PP.getDiagnostics(); 450aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Diags.hasErrorOccurred() || Diags.hasFatalErrorOccurred()) 451aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return; 452aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 453c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks { 454d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->startTimer(); 455d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 456c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // Introduce a scope to destroy BR before Mgr. 457c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks BugReporter BR(*Mgr); 458c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks TranslationUnitDecl *TU = C.getTranslationUnitDecl(); 459c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnASTDecl(TU, *Mgr, BR); 460aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 461aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Run the AST-only checks using the order in which functions are defined. 462aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // If inlining is not turned on, use the simplest function order for path 463aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // sensitive analyzes as well. 4644eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode = AM_Syntax; 4654eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Mgr->shouldInlineCall()) 4664eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode |= AM_Path; 467aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = &BR; 4686a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 4696a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Process all the top level declarations. 470cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek // 471577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // Note: TraverseDecl may modify LocalTUDecls, but only by appending more 472577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // entries. Thus we don't use an iterator, but rely on LocalTUDecls 473577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // random access. By doing so, we automatically compensate for iterators 474577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // possibly being invalidated, although this is a bit slower. 475694a942b0a14e02757a695142c45437eec6e3684Anna Zaks const unsigned LocalTUDeclsSize = LocalTUDecls.size(); 476694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 477577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek TraverseDecl(LocalTUDecls[i]); 478cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek } 479aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 480aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Mgr->shouldInlineCall()) 481469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose HandleDeclsCallGraph(LocalTUDeclsSize); 482b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 483c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // After all decls handled, run checkers on the entire TranslationUnit. 484c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnEndOfTranslationUnit(TU, *Mgr, BR); 485aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 486aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = 0; 487c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks } 4889be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 489ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Explicitly destroy the PathDiagnosticConsumer. This will flush its output. 490690a7f431d6863a101711e67636d51ddd13f35c5Ted Kremenek // FIXME: This should be replaced with something that doesn't rely on 491ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // side-effects in PathDiagnosticConsumer's destructor. This is required when 492da17fd50ad485fd2a1fc5c2f055caacf532992daZhongxing Xu // used with option -disable-free. 493d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu Mgr.reset(NULL); 494d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 495d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->stopTimer(); 4966b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 4976b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks // Count how many basic blocks we have not covered. 4986b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions = FunctionSummaries.getTotalNumBasicBlocks(); 4996b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks if (NumBlocksInAnalyzedFunctions > 0) 5006b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks PercentReachableBlocks = 5016b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks (FunctionSummaries.getTotalNumVisitedBasicBlocks() * 100) / 5026b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions; 5036b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 504db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek} 505db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek 5065f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic void FindBlocks(DeclContext *D, SmallVectorImpl<Decl*> &WL) { 507fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) 508fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek WL.push_back(BD); 509f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 510fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek for (DeclContext::decl_iterator I = D->decls_begin(), E = D->decls_end(); 511fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek I!=E; ++I) 512fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek if (DeclContext *DC = dyn_cast<DeclContext>(*I)) 513fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek FindBlocks(DC, WL); 514fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek} 515fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek 516d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksstatic std::string getFunctionName(const Decl *D) { 517d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const ObjCMethodDecl *ID = dyn_cast<ObjCMethodDecl>(D)) { 518d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ID->getSelector().getAsString(); 519d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 520d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const FunctionDecl *ND = dyn_cast<FunctionDecl>(D)) { 521d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks IdentifierInfo *II = ND->getIdentifier(); 522d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (II) 523d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return II->getName(); 524d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 525d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ""; 526d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks} 527d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 5284eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::AnalysisMode 5294eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::getModeForDecl(Decl *D, AnalysisMode Mode) { 53045796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzeSpecificFunction.empty() && 53145796b10d11869e86c6b85e24df165410536b313Ted Kremenek getFunctionName(D) != Opts->AnalyzeSpecificFunction) 5324eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5344eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // Unless -analyze-all is specified, treat decls differently depending on 5354eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // where they came from: 5364eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Main source file: run both path-sensitive and non-path-sensitive checks. 5374eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Header files: run non-path-sensitive checks only. 5384eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - System headers: don't run any checks. 539fcd783d583d270b7ec1ec3e0fcf83cd93d30e381Ted Kremenek SourceManager &SM = Ctx->getSourceManager(); 540402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth SourceLocation SL = SM.getExpansionLoc(D->getLocation()); 5414eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Opts->AnalyzeAll && !SM.isFromMainFile(SL)) { 5424eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (SL.isInvalid() || SM.isInSystemHeader(SL)) 5434eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5444eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode & ~AM_Path; 5454eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose } 54698520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 5474eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode; 54898520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks} 54998520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 550aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksvoid AnalysisConsumer::HandleCode(Decl *D, AnalysisMode Mode, 5516a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 5524eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose Mode = getModeForDecl(D, Mode); 5534eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_None) 5541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return; 555f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 556aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DisplayFunction(D, Mode); 55784c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks CFG *DeclCFG = Mgr->getCFG(D); 55884c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks if (DeclCFG) { 55984c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks unsigned CFGSize = DeclCFG->size(); 56084c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks MaxCFGSize = MaxCFGSize < CFGSize ? CFGSize : MaxCFGSize; 56184c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks } 56284c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks 56398520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 5641d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek // Clear the AnalysisManager of old AnalysisDeclContexts. 56558f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Mgr->ClearContexts(); 566f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 5671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Dispatch on the actions. 5685f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Decl*, 10> WL; 569fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek WL.push_back(D); 570f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 57145796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (D->hasBody() && Opts->AnalyzeNestedBlocks) 572fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek FindBlocks(cast<DeclContext>(D), WL); 573f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 5749fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis BugReporter BR(*Mgr); 5755f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<Decl*>::iterator WI=WL.begin(), WE=WL.end(); 5769fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis WI != WE; ++WI) 577d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis if ((*WI)->hasBody()) { 5784eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 579aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks checkerMgr->runCheckersOnASTBody(*WI, *Mgr, BR); 5804eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if ((Mode & AM_Path) && checkerMgr->hasPathSensitiveCheckers()) { 5813fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks RunPathSensitiveChecks(*WI, VisitedCallees); 5821f5171edc9fb9b0698a75fa981c29a750b0a6082Anna Zaks NumFunctionsAnalyzed++; 5831f5171edc9fb9b0698a75fa981c29a750b0a6082Anna Zaks } 584d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis } 585f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 586f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 587f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 588d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis// Path-sensitive checking. 589f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 590f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 5913fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaksvoid AnalysisConsumer::ActionExprEngine(Decl *D, bool ObjCGCEnabled, 5926a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 593a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Construct the analysis engine. First check if the CFG is valid. 59475d03cffe20b5c945ef04eba208efb0437339997Ted Kremenek // FIXME: Inter-procedural analysis will need to handle invalid CFGs. 5953fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks if (!Mgr->getCFG(D)) 596f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek return; 5973fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks 598d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek // See if the LiveVariables analysis scales. 599d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek if (!Mgr->getAnalysisDeclContext(D)->getAnalysis<RelaxedLiveVariables>()) 600d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek return; 601d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek 6023bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks ExprEngine Eng(*Mgr, ObjCGCEnabled, VisitedCallees, &FunctionSummaries); 603f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 604f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Set the graph auditor. 6056f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<ExplodedNode::Auditor> Auditor; 6063b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithUbiGraph) { 607f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Auditor.reset(CreateUbiViz()); 608c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(Auditor.get()); 609f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 6101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 611b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek // Execute the worklist algorithm. 612d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose Eng.ExecuteWorkList(Mgr->getAnalysisDeclContextManager().getStackFrame(D), 613255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Mgr->options.MaxNodes); 6141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 615f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Release the auditor (if any) so that it doesn't monitor the graph 616f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // created BugReporter. 617c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(0); 6183df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek 61934d7734b6ed1d9c0f647405e065251eb67f42badTed Kremenek // Visualize the exploded graph. 6203b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithGraphViz) 621255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Eng.ViewGraph(Mgr->options.TrimGraph); 6221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6233df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek // Display warnings. 6243df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek Eng.getBugReporter().FlushReports(); 625bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek} 626bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek 6276a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::RunPathSensitiveChecks(Decl *D, 6286a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *Visited) { 62917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 6304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie switch (Mgr->getLangOpts().getGC()) { 63117a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::NonGC: 6323fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks ActionExprEngine(D, false, Visited); 63317a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 63417a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 63517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::GCOnly: 6363fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks ActionExprEngine(D, true, Visited); 63717a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 63817a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 63917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::HybridGC: 6403fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks ActionExprEngine(D, false, Visited); 6413fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks ActionExprEngine(D, true, Visited); 64217a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 64317a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose } 644b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek} 645b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek 646f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 647f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer creation. 648f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 649f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6509ef6537a894c33003359b1f9b9676e9178e028b7Ted KremenekASTConsumer* ento::CreateAnalysisConsumer(const Preprocessor& pp, 65108b86531ade68727c56918f162816075b87c864aJordy Rose const std::string& outDir, 65245796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 65308b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) { 65408b86531ade68727c56918f162816075b87c864aJordy Rose // Disable the effects of '-Werror' when using the AnalysisConsumer. 655efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar pp.getDiagnostics().setWarningsAsErrors(false); 656be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek 65708b86531ade68727c56918f162816075b87c864aJordy Rose return new AnalysisConsumer(pp, outDir, opts, plugins); 658f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 659f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 660f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 661f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek// Ubigraph Visualization. FIXME: Move to separate file. 662f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 663f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 664f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremeneknamespace { 6651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 666c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass UbigraphViz : public ExplodedNode::Auditor { 6676f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<raw_ostream> Out; 668710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Dir, Filename; 669f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned Cntr; 670f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 671f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek typedef llvm::DenseMap<void*,unsigned> VMap; 672f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap M; 6731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 674f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenekpublic: 6759c378f705405d37f49795d5e915989de774fe11fTed Kremenek UbigraphViz(raw_ostream *out, llvm::sys::Path& dir, 67656b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek llvm::sys::Path& filename); 6771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 678710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek ~UbigraphViz(); 6791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6809c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst); 681f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek}; 6821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 683f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} // end anonymous namespace 684f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 685c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz() { 686f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek std::string ErrMsg; 6871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 688710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Dir = llvm::sys::Path::GetTemporaryDirectory(&ErrMsg); 689f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (!ErrMsg.empty()) 690f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek return 0; 691f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 692710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Filename = Dir; 693f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Filename.appendComponent("llvm_ubi"); 694f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Filename.makeUnique(true,&ErrMsg); 695f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 696f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (!ErrMsg.empty()) 697f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek return 0; 698f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 699d57a7ef9252964bc6c8471451d7bd395b0520cb8Chris Lattner llvm::errs() << "Writing '" << Filename.str() << "'.\n"; 7001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7016f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<llvm::raw_fd_ostream> Stream; 702b044c473a155b7e827680635c1699cb2b5b6c0eeDan Gohman Stream.reset(new llvm::raw_fd_ostream(Filename.c_str(), ErrMsg)); 703f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 704f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (!ErrMsg.empty()) 705f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek return 0; 7061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 707710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek return new UbigraphViz(Stream.take(), Dir, Filename); 708f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 709f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7109c378f705405d37f49795d5e915989de774fe11fTed Kremenekvoid UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) { 7111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 71245479c88c8a44c55d27c3bd855273bb318082f37Ted Kremenek assert (Src != Dst && "Self-edges are not allowed."); 7131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 714f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Src. If it is a new node, it's a root. 715f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator SrcI= M.find(Src); 716f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned SrcID; 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 718f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (SrcI == M.end()) { 719f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Src] = SrcID = Cntr++; 720f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << SrcID << ", ('color','#00ff00'))\n"; 721f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 722f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek else 723f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek SrcID = SrcI->second; 7241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 725f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Dst. 726f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator DstI= M.find(Dst); 727f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned DstID; 728f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 729f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (DstI == M.end()) { 730f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Dst] = DstID = Cntr++; 731f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << DstID << ")\n"; 732f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 73356b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek else { 73456b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek // We have hit DstID before. Change its style to reflect a cache hit. 735f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek DstID = DstI->second; 73656b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('change_vertex_style', " << DstID << ", 1)\n"; 73756b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek } 738f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 739f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Add the edge. 7401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump *Out << "('edge', " << SrcID << ", " << DstID 741d1289327f7d2126d732e23cc189ecd0aa5d07cbbTed Kremenek << ", ('arrow','true'), ('oriented', 'true'))\n"; 742f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 743f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7449c378f705405d37f49795d5e915989de774fe11fTed KremenekUbigraphViz::UbigraphViz(raw_ostream *out, llvm::sys::Path& dir, 74556b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek llvm::sys::Path& filename) 74656b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek : Out(out), Dir(dir), Filename(filename), Cntr(0) { 74756b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 74856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n"; 74956b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66')," 75056b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek " ('size', '1.5'))\n"; 75156b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek} 75256b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 753710ad9343f32b33b336369b20edad1a21a0b3299Ted KremenekUbigraphViz::~UbigraphViz() { 754710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek Out.reset(0); 7556cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Running 'ubiviz' program... "; 756710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::string ErrMsg; 757710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Ubiviz = llvm::sys::Program::FindProgramByName("ubiviz"); 758710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::vector<const char*> args; 759710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Ubiviz.c_str()); 760710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Filename.c_str()); 761710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(0); 7621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 763710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek if (llvm::sys::Program::ExecuteAndWait(Ubiviz, &args[0],0,0,0,0,&ErrMsg)) { 7646cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Error viewing graph: " << ErrMsg << "\n"; 765710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek } 7661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 767710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek // Delete the directory. 7681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Dir.eraseFromDisk(true); 769932680ecdeab4c216ce7c0736093d3dcd2f60f6dDaniel Dunbar} 770