AnalysisConsumer.cpp revision 39cf781d62daaec09e443c6e66a01cd7543ffb41
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" 406a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks#include "llvm/ADT/SmallPtrSet.h" 4181fb169f42769e02c7425b23885a261c025fd5e6Anna Zaks#include "llvm/ADT/Statistic.h" 4255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Path.h" 4355fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Program.h" 4455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Timer.h" 4555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/raw_ostream.h" 467fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks#include <queue> 477fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 48f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenekusing namespace clang; 499ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenekusing namespace ento; 50d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksusing llvm::SmallPtrSet; 51f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 52c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz(); 53ff944a8c481d6c0f1ad2633e4be9bf8b1dd2a09fZhongxing Xu 543fd5f370a28552976c52e76c3035d79012d78ddaAnna ZaksSTATISTIC(NumFunctionTopLevel, "The # of functions at top level."); 5575f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksSTATISTIC(NumFunctionsAnalyzed, 5639cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of functions and blocks analyzed (as top level " 5739cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "with inlining turned on)."); 58e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(NumBlocksInAnalyzedFunctions, 5939cf781d62daaec09e443c6e66a01cd7543ffb41Anna 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 27175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks /// \brief Determine which inlining mode should be used when this function is 27275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks /// analyzed. For example, determines if the callees should be inlined. 27375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes 274b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks getInliningModeForFunction(const Decl *D, SetOfConstDecls Visited); 27575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 2766a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Build the call graph for all the top level decls of this TU and 2776a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// use it to define the order in which the functions should be visited. 278469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose void HandleDeclsCallGraph(const unsigned LocalTUDeclsSize); 279aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 280aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \brief Run analyzes(syntax or path sensitive) on the given function. 281aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param Mode - determines if we are requesting syntax only or path 282aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// sensitive only analysis. 283aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param VisitedCallees - The output parameter, which is populated with the 284aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// set of functions which should be considered analyzed after analyzing the 285aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// given root function. 2866a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void HandleCode(Decl *D, AnalysisMode Mode, 28775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode = ExprEngine::Inline_None, 2886a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees = 0); 289aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 29075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks void RunPathSensitiveChecks(Decl *D, 29175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 29275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks SetOfConstDecls *VisitedCallees); 2936a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void ActionExprEngine(Decl *D, bool ObjCGCEnabled, 29475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 2956a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees); 296aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 297aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Visitors for the RecursiveASTVisitor. 298c8848f34bbde083b8d89f445eb605eaabf30d6a8Anna Zaks bool shouldWalkTypesOfTypeLocs() const { return false; } 299aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 300aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Handle callbacks for arbitrary Decls. 301aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitDecl(Decl *D) { 3024eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode Mode = getModeForDecl(D, RecVisitorMode); 3034eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 3044eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose checkerMgr->runCheckersOnASTDecl(D, *Mgr, *RecVisitorBR); 305aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 306aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 307aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 308aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitFunctionDecl(FunctionDecl *FD) { 309aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks IdentifierInfo *II = FD->getIdentifier(); 310aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (II && II->getName().startswith("__inline")) 311aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 312aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 313aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // We skip function template definitions, as their semantics is 314aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // only determined when they are instantiated. 315aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (FD->isThisDeclarationADefinition() && 316aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks !FD->isDependentContext()) { 31775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 318aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(FD, RecVisitorMode); 319aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 320aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 321aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 322aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 323aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitObjCMethodDecl(ObjCMethodDecl *MD) { 32475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (MD->isThisDeclarationADefinition()) { 32575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 326aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(MD, RecVisitorMode); 32775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 328aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 329aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 3306a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3316a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksprivate: 3326a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void storeTopLevelDecls(DeclGroupRef DG); 3336a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3346a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Check if we should skip (not analyze) the given function. 3354eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode getModeForDecl(Decl *D, AnalysisMode Mode); 3366a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3371d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek}; 338f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} // end anonymous namespace 339f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 340aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 341f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 342f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer implementation. 343f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 344d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaksllvm::Timer* AnalysisConsumer::TUTotalTimer = 0; 345f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 3466a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksbool AnalysisConsumer::HandleTopLevelDecl(DeclGroupRef DG) { 3476a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3486a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks return true; 3496a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3506a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3516a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) { 3526a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3536a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3546a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3556a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::storeTopLevelDecls(DeclGroupRef DG) { 3566a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) { 3576a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3586a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Skip ObjCMethodDecl, wait for the objc container to avoid 3596a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // analyzing twice. 3606a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks if (isa<ObjCMethodDecl>(*I)) 3616a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks continue; 3626a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 363577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek LocalTUDecls.push_back(*I); 3646a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks } 3656a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3666a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 367b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaksstatic bool shouldSkipFunction(const Decl *D, 368b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited, 369b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel) { 370b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (VisitedAsTopLevel.count(D)) 37175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks return true; 37275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 37375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to re-analyse the functions as top level in the following cases: 374fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - The 'init' methods should be reanalyzed because 375fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // ObjCNonNilReturnValueChecker assumes that '[super init]' never returns 37675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // 'nil' and unless we analyze the 'init' functions as top level, we will 37775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // not catch errors within defensive code. 378fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - We want to reanalyze all ObjC methods as top level to report Retain 379fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Count naming convention errors more aggressively. 380b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (isa<ObjCMethodDecl>(D)) 381fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks return false; 382fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 383fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Otherwise, if we visited the function before, do not reanalyze it. 384b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks return Visited.count(D); 385fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks} 386fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 38775f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksExprEngine::InliningModes 388b467051a9f212c57335f88f16e839e1dc8afc1c1Anna ZaksAnalysisConsumer::getInliningModeForFunction(const Decl *D, 389b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited) { 39075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes HowToInline = 39175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks (Mgr->shouldInlineCall()) ? ExprEngine::Inline_All : 39275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::Inline_None; 39375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 39475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to reanalyze all ObjC methods as top level to report Retain 39575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // Count naming convention errors more aggressively. But we can turn off 39675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // inlining when reanalyzing an already inlined function. 397b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (Visited.count(D)) { 398b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks assert(isa<ObjCMethodDecl>(D) && 39975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks "We are only reanalyzing ObjCMethods."); 400b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks const ObjCMethodDecl *ObjCM = cast<ObjCMethodDecl>(D); 40175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (ObjCM->getMethodFamily() != OMF_init) 40275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks HowToInline = ExprEngine::Inline_None; 40375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 40475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 40575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks return HowToInline; 40675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks} 40775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 408469ba550f54577f28e23ea42c293308fbcad6609Jordan Rosevoid AnalysisConsumer::HandleDeclsCallGraph(const unsigned LocalTUDeclsSize) { 409d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // Otherwise, use the Callgraph to derive the order. 410d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // Build the Call Graph. 411d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks CallGraph CG; 412eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks 4136a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Add all the top level declarations to the graph. 414694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // Note: CallGraph can trigger deserialization of more items from a pch 415694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // (though HandleInterestingDecl); triggering additions to LocalTUDecls. 416694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // We rely on random access to add the initially processed Decls to CG. 417694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 418eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks CG.addToCallGraph(LocalTUDecls[i]); 419eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks } 420d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 421d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // Find the top level nodes - children of root + the unreachable (parentless) 422d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // nodes. 4233fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks llvm::SmallVector<CallGraphNode*, 24> TopLevelFunctions; 424b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks for (CallGraph::nodes_iterator TI = CG.parentless_begin(), 425b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks TE = CG.parentless_end(); TI != TE; ++TI) { 426b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks TopLevelFunctions.push_back(*TI); 427b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks NumFunctionTopLevel++; 428b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks } 429d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks CallGraphNode *Entry = CG.getRoot(); 430d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks for (CallGraphNode::iterator I = Entry->begin(), 4313fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks E = Entry->end(); I != E; ++I) { 432d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks TopLevelFunctions.push_back(*I); 4333fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks NumFunctionTopLevel++; 4343fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks } 435d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 436b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // Make sure the nodes are sorted in order reverse of their definition in the 437b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // translation unit. This step is very important for performance. It ensures 438b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // that we analyze the root functions before the externally available 439b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks // subroutines. 440cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek std::deque<CallGraphNode*> BFSQueue; 441b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks for (llvm::SmallVector<CallGraphNode*, 24>::reverse_iterator 442b990d039c7e01ad0055dcbd1e13a691813397b96Anna Zaks TI = TopLevelFunctions.rbegin(), TE = TopLevelFunctions.rend(); 4437fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks TI != TE; ++TI) 444371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek BFSQueue.push_back(*TI); 445d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 4467fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // BFS over all of the functions, while skipping the ones inlined into 4477fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // the previously processed functions. Use external Visited set, which is 448d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks // also modified when we inline a function. 449b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited; 450b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel; 4517fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks while(!BFSQueue.empty()) { 4527fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks CallGraphNode *N = BFSQueue.front(); 453cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek BFSQueue.pop_front(); 4547fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 455371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek // Push the children into the queue. 456371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek for (CallGraphNode::const_iterator CI = N->begin(), 457371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek CE = N->end(); CI != CE; ++CI) { 458b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (!shouldSkipFunction((*CI)->getDecl(), Visited, VisitedAsTopLevel)) 459371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek BFSQueue.push_back(*CI); 460371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek } 461371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek 462b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Decl *D = N->getDecl(); 463b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks assert(D); 464b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks 4657fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Skip the functions which have been processed already or previously 4667fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // inlined. 467b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (shouldSkipFunction(D, Visited, VisitedAsTopLevel)) 4687fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks continue; 4697fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4707fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Analyze the function. 4716a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls VisitedCallees; 47275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 473b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks HandleCode(D, AM_Path, getInliningModeForFunction(D, Visited), 474255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek (Mgr->options.InliningMode == All ? 0 : &VisitedCallees)); 4757fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4767fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Add the visited callees to the global visited set. 477cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek for (SetOfConstDecls::iterator I = VisitedCallees.begin(), 478cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek E = VisitedCallees.end(); I != E; ++I) { 479b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Visited.insert(*I); 4807fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks } 481b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks VisitedAsTopLevel.insert(D); 482d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 483fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek} 484fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek 48514cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenekvoid AnalysisConsumer::HandleTranslationUnit(ASTContext &C) { 486aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Don't run the actions if an error has occurred with parsing the file. 487aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DiagnosticsEngine &Diags = PP.getDiagnostics(); 488aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Diags.hasErrorOccurred() || Diags.hasFatalErrorOccurred()) 489aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return; 490aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 491c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks { 492d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->startTimer(); 493d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 494c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // Introduce a scope to destroy BR before Mgr. 495c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks BugReporter BR(*Mgr); 496c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks TranslationUnitDecl *TU = C.getTranslationUnitDecl(); 497c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnASTDecl(TU, *Mgr, BR); 498aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 499aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Run the AST-only checks using the order in which functions are defined. 500aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // If inlining is not turned on, use the simplest function order for path 501aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // sensitive analyzes as well. 5024eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode = AM_Syntax; 5034eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Mgr->shouldInlineCall()) 5044eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode |= AM_Path; 505aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = &BR; 5066a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 5076a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Process all the top level declarations. 508cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek // 509577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // Note: TraverseDecl may modify LocalTUDecls, but only by appending more 510577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // entries. Thus we don't use an iterator, but rely on LocalTUDecls 511577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // random access. By doing so, we automatically compensate for iterators 512577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // possibly being invalidated, although this is a bit slower. 513694a942b0a14e02757a695142c45437eec6e3684Anna Zaks const unsigned LocalTUDeclsSize = LocalTUDecls.size(); 514694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 515577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek TraverseDecl(LocalTUDecls[i]); 516cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek } 517aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 518aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Mgr->shouldInlineCall()) 519469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose HandleDeclsCallGraph(LocalTUDeclsSize); 520b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 521c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // After all decls handled, run checkers on the entire TranslationUnit. 522c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnEndOfTranslationUnit(TU, *Mgr, BR); 523aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 524aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = 0; 525c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks } 5269be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 527ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Explicitly destroy the PathDiagnosticConsumer. This will flush its output. 528690a7f431d6863a101711e67636d51ddd13f35c5Ted Kremenek // FIXME: This should be replaced with something that doesn't rely on 529ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // side-effects in PathDiagnosticConsumer's destructor. This is required when 530da17fd50ad485fd2a1fc5c2f055caacf532992daZhongxing Xu // used with option -disable-free. 531d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu Mgr.reset(NULL); 532d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 533d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->stopTimer(); 5346b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 5356b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks // Count how many basic blocks we have not covered. 5366b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions = FunctionSummaries.getTotalNumBasicBlocks(); 5376b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks if (NumBlocksInAnalyzedFunctions > 0) 5386b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks PercentReachableBlocks = 5396b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks (FunctionSummaries.getTotalNumVisitedBasicBlocks() * 100) / 5406b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions; 5416b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 542db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek} 543db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek 5445f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic void FindBlocks(DeclContext *D, SmallVectorImpl<Decl*> &WL) { 545fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) 546fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek WL.push_back(BD); 547f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 548fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek for (DeclContext::decl_iterator I = D->decls_begin(), E = D->decls_end(); 549fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek I!=E; ++I) 550fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek if (DeclContext *DC = dyn_cast<DeclContext>(*I)) 551fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek FindBlocks(DC, WL); 552fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek} 553fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek 554d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksstatic std::string getFunctionName(const Decl *D) { 555d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const ObjCMethodDecl *ID = dyn_cast<ObjCMethodDecl>(D)) { 556d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ID->getSelector().getAsString(); 557d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 558d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const FunctionDecl *ND = dyn_cast<FunctionDecl>(D)) { 559d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks IdentifierInfo *II = ND->getIdentifier(); 560d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (II) 561d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return II->getName(); 562d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 563d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ""; 564d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks} 565d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 5664eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::AnalysisMode 5674eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::getModeForDecl(Decl *D, AnalysisMode Mode) { 56845796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzeSpecificFunction.empty() && 56945796b10d11869e86c6b85e24df165410536b313Ted Kremenek getFunctionName(D) != Opts->AnalyzeSpecificFunction) 5704eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5724eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // Unless -analyze-all is specified, treat decls differently depending on 5734eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // where they came from: 5744eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Main source file: run both path-sensitive and non-path-sensitive checks. 5754eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Header files: run non-path-sensitive checks only. 5764eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - System headers: don't run any checks. 577fcd783d583d270b7ec1ec3e0fcf83cd93d30e381Ted Kremenek SourceManager &SM = Ctx->getSourceManager(); 578402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth SourceLocation SL = SM.getExpansionLoc(D->getLocation()); 5794eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Opts->AnalyzeAll && !SM.isFromMainFile(SL)) { 5804eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (SL.isInvalid() || SM.isInSystemHeader(SL)) 5814eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5824eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode & ~AM_Path; 5834eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose } 58498520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 5854eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode; 58698520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks} 58798520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 588aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksvoid AnalysisConsumer::HandleCode(Decl *D, AnalysisMode Mode, 58975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 5906a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 5914eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose Mode = getModeForDecl(D, Mode); 5924eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_None) 5931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return; 594f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 595aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DisplayFunction(D, Mode); 59684c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks CFG *DeclCFG = Mgr->getCFG(D); 59784c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks if (DeclCFG) { 59884c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks unsigned CFGSize = DeclCFG->size(); 59984c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks MaxCFGSize = MaxCFGSize < CFGSize ? CFGSize : MaxCFGSize; 60084c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks } 60184c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks 60298520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 6031d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek // Clear the AnalysisManager of old AnalysisDeclContexts. 60458f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Mgr->ClearContexts(); 605f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 6061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Dispatch on the actions. 6075f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Decl*, 10> WL; 608fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek WL.push_back(D); 609f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 61045796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (D->hasBody() && Opts->AnalyzeNestedBlocks) 611fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek FindBlocks(cast<DeclContext>(D), WL); 612f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 6139fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis BugReporter BR(*Mgr); 6145f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner for (SmallVectorImpl<Decl*>::iterator WI=WL.begin(), WE=WL.end(); 6159fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis WI != WE; ++WI) 616d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis if ((*WI)->hasBody()) { 6174eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 618aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks checkerMgr->runCheckersOnASTBody(*WI, *Mgr, BR); 6194eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if ((Mode & AM_Path) && checkerMgr->hasPathSensitiveCheckers()) { 62075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks RunPathSensitiveChecks(*WI, IMode, VisitedCallees); 62139cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks if (IMode != ExprEngine::Inline_None) 62239cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks NumFunctionsAnalyzed++; 6231f5171edc9fb9b0698a75fa981c29a750b0a6082Anna Zaks } 624d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis } 625f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 626f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 627f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 628d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis// Path-sensitive checking. 629f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 630f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6313fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaksvoid AnalysisConsumer::ActionExprEngine(Decl *D, bool ObjCGCEnabled, 63275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6336a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 634a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Construct the analysis engine. First check if the CFG is valid. 63575d03cffe20b5c945ef04eba208efb0437339997Ted Kremenek // FIXME: Inter-procedural analysis will need to handle invalid CFGs. 6363fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks if (!Mgr->getCFG(D)) 637f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek return; 6383fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks 639d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek // See if the LiveVariables analysis scales. 640d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek if (!Mgr->getAnalysisDeclContext(D)->getAnalysis<RelaxedLiveVariables>()) 641d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek return; 642d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek 64375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine Eng(*Mgr, ObjCGCEnabled, VisitedCallees, &FunctionSummaries,IMode); 644f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 645f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Set the graph auditor. 6466f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<ExplodedNode::Auditor> Auditor; 6473b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithUbiGraph) { 648f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Auditor.reset(CreateUbiViz()); 649c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(Auditor.get()); 650f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 6511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 652b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek // Execute the worklist algorithm. 653d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose Eng.ExecuteWorkList(Mgr->getAnalysisDeclContextManager().getStackFrame(D), 654255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Mgr->options.MaxNodes); 6551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 656f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Release the auditor (if any) so that it doesn't monitor the graph 657f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // created BugReporter. 658c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(0); 6593df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek 66034d7734b6ed1d9c0f647405e065251eb67f42badTed Kremenek // Visualize the exploded graph. 6613b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithGraphViz) 662255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Eng.ViewGraph(Mgr->options.TrimGraph); 6631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6643df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek // Display warnings. 6653df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek Eng.getBugReporter().FlushReports(); 666bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek} 667bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek 6686a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::RunPathSensitiveChecks(Decl *D, 66975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6706a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *Visited) { 67117a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 6724e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie switch (Mgr->getLangOpts().getGC()) { 67317a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::NonGC: 67475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 67517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 67617a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 67717a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::GCOnly: 67875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 67917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 68017a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 68117a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::HybridGC: 68275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 68375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 68417a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 68517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose } 686b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek} 687b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek 688f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 689f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer creation. 690f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 691f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6929ef6537a894c33003359b1f9b9676e9178e028b7Ted KremenekASTConsumer* ento::CreateAnalysisConsumer(const Preprocessor& pp, 69308b86531ade68727c56918f162816075b87c864aJordy Rose const std::string& outDir, 69445796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 69508b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) { 69608b86531ade68727c56918f162816075b87c864aJordy Rose // Disable the effects of '-Werror' when using the AnalysisConsumer. 697efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar pp.getDiagnostics().setWarningsAsErrors(false); 698be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek 69908b86531ade68727c56918f162816075b87c864aJordy Rose return new AnalysisConsumer(pp, outDir, opts, plugins); 700f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 701f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 702f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 703f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek// Ubigraph Visualization. FIXME: Move to separate file. 704f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 705f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 706f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremeneknamespace { 7071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 708c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass UbigraphViz : public ExplodedNode::Auditor { 7096f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<raw_ostream> Out; 710710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Dir, Filename; 711f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned Cntr; 712f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 713f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek typedef llvm::DenseMap<void*,unsigned> VMap; 714f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap M; 7151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 716f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenekpublic: 7179c378f705405d37f49795d5e915989de774fe11fTed Kremenek UbigraphViz(raw_ostream *out, llvm::sys::Path& dir, 71856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek llvm::sys::Path& filename); 7191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 720710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek ~UbigraphViz(); 7211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7229c378f705405d37f49795d5e915989de774fe11fTed Kremenek virtual void AddEdge(ExplodedNode *Src, ExplodedNode *Dst); 723f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek}; 7241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 725f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} // end anonymous namespace 726f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 727c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz() { 728f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek std::string ErrMsg; 7291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 730710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Dir = llvm::sys::Path::GetTemporaryDirectory(&ErrMsg); 731f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (!ErrMsg.empty()) 732f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek return 0; 733f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 734710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Filename = Dir; 735f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Filename.appendComponent("llvm_ubi"); 736f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Filename.makeUnique(true,&ErrMsg); 737f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 738f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (!ErrMsg.empty()) 739f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek return 0; 740f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 741d57a7ef9252964bc6c8471451d7bd395b0520cb8Chris Lattner llvm::errs() << "Writing '" << Filename.str() << "'.\n"; 7421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7436f42b62b6194f53bcbc349f5d17388e1936535d7Dylan Noblesmith OwningPtr<llvm::raw_fd_ostream> Stream; 744b044c473a155b7e827680635c1699cb2b5b6c0eeDan Gohman Stream.reset(new llvm::raw_fd_ostream(Filename.c_str(), ErrMsg)); 745f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 746f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (!ErrMsg.empty()) 747f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek return 0; 7481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 749710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek return new UbigraphViz(Stream.take(), Dir, Filename); 750f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 751f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7529c378f705405d37f49795d5e915989de774fe11fTed Kremenekvoid UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) { 7531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75445479c88c8a44c55d27c3bd855273bb318082f37Ted Kremenek assert (Src != Dst && "Self-edges are not allowed."); 7551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 756f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Src. If it is a new node, it's a root. 757f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator SrcI= M.find(Src); 758f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned SrcID; 7591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 760f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (SrcI == M.end()) { 761f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Src] = SrcID = Cntr++; 762f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << SrcID << ", ('color','#00ff00'))\n"; 763f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 764f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek else 765f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek SrcID = SrcI->second; 7661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 767f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Dst. 768f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator DstI= M.find(Dst); 769f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned DstID; 770f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 771f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (DstI == M.end()) { 772f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Dst] = DstID = Cntr++; 773f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << DstID << ")\n"; 774f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 77556b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek else { 77656b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek // We have hit DstID before. Change its style to reflect a cache hit. 777f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek DstID = DstI->second; 77856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('change_vertex_style', " << DstID << ", 1)\n"; 77956b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek } 780f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 781f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Add the edge. 7821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump *Out << "('edge', " << SrcID << ", " << DstID 783d1289327f7d2126d732e23cc189ecd0aa5d07cbbTed Kremenek << ", ('arrow','true'), ('oriented', 'true'))\n"; 784f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 785f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7869c378f705405d37f49795d5e915989de774fe11fTed KremenekUbigraphViz::UbigraphViz(raw_ostream *out, llvm::sys::Path& dir, 78756b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek llvm::sys::Path& filename) 78856b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek : Out(out), Dir(dir), Filename(filename), Cntr(0) { 78956b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 79056b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n"; 79156b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66')," 79256b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek " ('size', '1.5'))\n"; 79356b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek} 79456b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 795710ad9343f32b33b336369b20edad1a21a0b3299Ted KremenekUbigraphViz::~UbigraphViz() { 796710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek Out.reset(0); 7976cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Running 'ubiviz' program... "; 798710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::string ErrMsg; 799710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek llvm::sys::Path Ubiviz = llvm::sys::Program::FindProgramByName("ubiviz"); 800710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::vector<const char*> args; 801710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Ubiviz.c_str()); 802710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Filename.c_str()); 803710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(0); 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 805710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek if (llvm::sys::Program::ExecuteAndWait(Ubiviz, &args[0],0,0,0,0,&ErrMsg)) { 8066cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Error viewing graph: " << ErrMsg << "\n"; 807710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek } 8081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 809710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek // Delete the directory. 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Dir.eraseFromDisk(true); 811932680ecdeab4c216ce7c0736093d3dcd2f60f6dDaniel Dunbar} 812