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 14651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/StaticAnalyzer/Frontend/AnalysisConsumer.h" 15f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek#include "clang/AST/ASTConsumer.h" 16651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/AST/DataRecursiveASTVisitor.h" 17f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek#include "clang/AST/Decl.h" 18802be99a6817aba6edb166b93c133da4358aa783Zhongxing Xu#include "clang/AST/DeclCXX.h" 19f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek#include "clang/AST/DeclObjC.h" 20efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/AST/ParentMap.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Analysis/Analyses/LiveVariables.h" 22efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar#include "clang/Analysis/CFG.h" 23d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#include "clang/Analysis/CallGraph.h" 2455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Basic/FileManager.h" 2555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Basic/SourceManager.h" 2655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Lex/Preprocessor.h" 2721142581d55918beed544a757e4af3bb865b1812Ted Kremenek#include "clang/StaticAnalyzer/Checkers/LocalCheckers.h" 2855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 2955fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/BugReporter/BugReporter.h" 309b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/BugReporter/PathDiagnostic.h" 3155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/CheckerManager.h" 3255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Core/PathDiagnosticConsumers.h" 339b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h" 349b663716449b618ba0390b1dbebc54fa8e971124Ted Kremenek#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h" 3555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/StaticAnalyzer/Frontend/CheckerRegistration.h" 36d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks#include "llvm/ADT/DepthFirstIterator.h" 37b99083e60325a28063fb588f458a871151971fdcChandler Carruth#include "llvm/ADT/PostOrderIterator.h" 386a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks#include "llvm/ADT/SmallPtrSet.h" 3981fb169f42769e02c7425b23885a261c025fd5e6Anna Zaks#include "llvm/ADT/Statistic.h" 40b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola#include "llvm/Support/FileSystem.h" 4155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Path.h" 4255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Program.h" 4355fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/Timer.h" 4455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "llvm/Support/raw_ostream.h" 45651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include <memory> 467fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks#include <queue> 477fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 48f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenekusing namespace clang; 499ef6537a894c33003359b1f9b9676e9178e028b7Ted Kremenekusing namespace ento; 50d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksusing llvm::SmallPtrSet; 51f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 526bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines#define DEBUG_TYPE "AnalysisConsumer" 536bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 54c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz(); 55ff944a8c481d6c0f1ad2633e4be9bf8b1dd2a09fZhongxing Xu 563fd5f370a28552976c52e76c3035d79012d78ddaAnna ZaksSTATISTIC(NumFunctionTopLevel, "The # of functions at top level."); 5775f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksSTATISTIC(NumFunctionsAnalyzed, 5839cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of functions and blocks analyzed (as top level " 5939cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "with inlining turned on)."); 60e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(NumBlocksInAnalyzedFunctions, 6139cf781d62daaec09e443c6e66a01cd7543ffb41Anna Zaks "The # of basic blocks in the analyzed functions."); 62e62f048960645b79363408fdead53fec2a063c52Anna ZaksSTATISTIC(PercentReachableBlocks, "The % of reachable basic blocks."); 6384c1f4b1edddf74f8080cfc470796c2c498b5d43Anna ZaksSTATISTIC(MaxCFGSize, "The maximum number of basic blocks in a function."); 64d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 65be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek//===----------------------------------------------------------------------===// 66f39d962cf84f46d2c0512157259ae1d41a1a5173David Blaikie// Special PathDiagnosticConsumers. 67f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 68f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 695fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rosevoid ento::createPlistHTMLDiagnosticConsumer(AnalyzerOptions &AnalyzerOpts, 705fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose PathDiagnosticConsumers &C, 715fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose const std::string &prefix, 725fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose const Preprocessor &PP) { 739fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createHTMLDiagnosticConsumer(AnalyzerOpts, C, 749fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek llvm::sys::path::parent_path(prefix), PP); 759fcc2ab2ec5e00802880e205568ff3afbd70a773Ted Kremenek createPlistDiagnosticConsumer(AnalyzerOpts, C, prefix, PP); 76f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek} 77f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek 785fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rosevoid ento::createTextPathDiagnosticConsumer(AnalyzerOptions &AnalyzerOpts, 795fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose PathDiagnosticConsumers &C, 805fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose const std::string &Prefix, 815fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose const clang::Preprocessor &PP) { 825fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose llvm_unreachable("'text' consumer should be enabled on ClangDiags"); 835fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose} 845fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose 85c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremeneknamespace { 86c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekclass ClangDiagPathDiagConsumer : public PathDiagnosticConsumer { 87c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek DiagnosticsEngine &Diag; 885fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose bool IncludePath; 89c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenekpublic: 905fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose ClangDiagPathDiagConsumer(DiagnosticsEngine &Diag) 915fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose : Diag(Diag), IncludePath(false) {} 92c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek virtual ~ClangDiagPathDiagConsumer() {} 93651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines StringRef getName() const override { return "ClangDiags"; } 945fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose 95651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool supportsLogicalOpControlFlow() const override { return true; } 96651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool supportsCrossFileDiagnostics() const override { return true; } 975fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose 98651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines PathGenerationScheme getGenerationScheme() const override { 995fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose return IncludePath ? Minimal : None; 1005fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose } 1015fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose 1025fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose void enablePaths() { 1035fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose IncludePath = true; 1045fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose } 1055fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose 106c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek void FlushDiagnosticsImpl(std::vector<const PathDiagnostic *> &Diags, 107651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FilesMade *filesMade) override { 108651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned WarnID = Diag.getCustomDiagID(DiagnosticsEngine::Warning, "%0"); 109651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned NoteID = Diag.getCustomDiagID(DiagnosticsEngine::Note, "%0"); 110651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 111c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek for (std::vector<const PathDiagnostic*>::iterator I = Diags.begin(), 112c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek E = Diags.end(); I != E; ++I) { 113c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek const PathDiagnostic *PD = *I; 114651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceLocation WarnLoc = PD->getLocation().asLocation(); 115651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag.Report(WarnLoc, WarnID) << PD->getShortDescription() 116651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << PD->path.back()->getRanges(); 1175fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose 1185fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose if (!IncludePath) 1195fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose continue; 120c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 1215fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose PathPieces FlatPath = PD->path.flatten(/*ShouldFlattenMacros=*/true); 1225fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose for (PathPieces::const_iterator PI = FlatPath.begin(), 1235fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose PE = FlatPath.end(); 1245fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose PI != PE; ++PI) { 1255fba5a789a238c29ef811a39a39be722443ec1b1Jordan Rose SourceLocation NoteLoc = (*PI)->getLocation().asLocation(); 126651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag.Report(NoteLoc, NoteID) << (*PI)->getString() 127651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << (*PI)->getRanges(); 128c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 129c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 130c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek } 131c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek}; 132c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek} // end anonymous namespace 133c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek 134f75560670bcdd59b051149bdece3eac14e313853Ted Kremenek//===----------------------------------------------------------------------===// 135f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer declaration. 136f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 137f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 138f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremeneknamespace { 139f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 140651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesclass AnalysisConsumer : public AnalysisASTConsumer, 141651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines public DataRecursiveASTVisitor<AnalysisConsumer> { 1424eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose enum { 1434eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_None = 0, 1444eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Syntax = 0x1, 1454eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AM_Path = 0x2 146aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks }; 1474eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose typedef unsigned AnalysisMode; 148aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 149aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Mode of the analyzes while recursively visiting Decls. 150aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks AnalysisMode RecVisitorMode; 151aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Bug Reporter to use while recursively visiting Decls. 152aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks BugReporter *RecVisitorBR; 153aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 154ed8afacb8118b71bcfa8017059e51da325e7691bZhongxing Xupublic: 1559c378f705405d37f49795d5e915989de774fe11fTed Kremenek ASTContext *Ctx; 1561d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const Preprocessor &PP; 1571d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string OutDir; 15845796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef Opts; 15908b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> Plugins; 160d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1616a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Stores the declarations from the local translation unit. 1626a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// Note, we pre-compute the local declarations at parse time as an 1636a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// optimization to make sure we do not deserialize everything from disk. 1646a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// The local declaration to all declarations ratio might be very small when 1656a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// working with a PCH file. 1666a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfDecls LocalTUDecls; 167cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek 168c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek // Set of PathDiagnosticConsumers. Owned by AnalysisManager. 169c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathDiagnosticConsumers PathConsumers; 170d07a0d0279c09d1017f8450fce575a94dc9703c0Zhongxing Xu 1711d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek StoreManagerCreator CreateStoreMgr; 1721d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek ConstraintManagerCreator CreateConstraintMgr; 173f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 174651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<CheckerManager> checkerMgr; 175651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<AnalysisManager> Mgr; 176c471e7b44e63ff1b46b480e723c4130aeaef5a8aZhongxing Xu 177d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks /// Time the analyzes time of each translation unit. 178d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks static llvm::Timer* TUTotalTimer; 179d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 1803bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// The information about analyzed functions shared throughout the 1813bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks /// translation unit. 1823bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks FunctionSummariesTy FunctionSummaries; 1833bbd8cd831788c506f2980293eb3c7e1b3ca2501Anna Zaks 1841d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek AnalysisConsumer(const Preprocessor& pp, 1851d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek const std::string& outdir, 18645796b10d11869e86c6b85e24df165410536b313Ted Kremenek AnalyzerOptionsRef opts, 18708b86531ade68727c56918f162816075b87c864aJordy Rose ArrayRef<std::string> plugins) 1886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : RecVisitorMode(0), RecVisitorBR(nullptr), 1896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ctx(nullptr), PP(pp), OutDir(outdir), Opts(opts), Plugins(plugins) { 1901d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek DigestAnalyzerOptions(); 19145796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) { 192d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks llvm::EnableStatistics(); 193d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks TUTotalTimer = new llvm::Timer("Analyzer Total Time"); 194d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 195d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks } 196d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 197d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks ~AnalysisConsumer() { 19845796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (Opts->PrintStats) 199d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks delete TUTotalTimer; 2001d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 201fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 2021d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek void DigestAnalyzerOptions() { 203651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Opts->AnalysisDiagOpt != PD_NONE) { 204651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Create the PathDiagnosticConsumer. 205651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClangDiagPathDiagConsumer *clangDiags = 206651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines new ClangDiagPathDiagConsumer(PP.getDiagnostics()); 207651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines PathConsumers.push_back(clangDiags); 208651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 209651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Opts->AnalysisDiagOpt == PD_TEXT) { 210651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines clangDiags->enablePaths(); 211651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 212651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (!OutDir.empty()) { 213651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines switch (Opts->AnalysisDiagOpt) { 214651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines default: 215651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATEFN) \ 216651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case PD_##NAME: \ 217ef8225444452a1486bd721f3285301fe84643b00Stephen Hines CREATEFN(*Opts.get(), PathConsumers, OutDir, PP); \ 218651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines break; 219987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 220651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 221fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 2221d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 223fda7832b000ff8927386f093b52c067641679469Zhongxing Xu 2241d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek // Create the analyzer component creators. 22545796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisStoreOpt) { 2265f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 227b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown store manager."); 228fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATEFN) \ 2295f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateStoreMgr = CREATEFN; break; 230987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 2311d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23345796b10d11869e86c6b85e24df165410536b313Ted Kremenek switch (Opts->AnalysisConstraintsOpt) { 2345f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis default: 2351c32b81765ed63ae9e3e00e5acef7a4379bba228Anna Zaks llvm_unreachable("Unknown constraint manager."); 236fda7832b000ff8927386f093b52c067641679469Zhongxing Xu#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATEFN) \ 2375f83d6f36a7308eef21d87104fd70c421e854448Argyrios Kyrtzidis case NAME##Model: CreateConstraintMgr = CREATEFN; break; 238987695a5ddd78beca784d4e503ffbc2dc879181aTed Kremenek#include "clang/StaticAnalyzer/Core/Analyses.def" 239fda7832b000ff8927386f093b52c067641679469Zhongxing Xu } 2401d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 241f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 242a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks void DisplayFunction(const Decl *D, AnalysisMode Mode, 243a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks ExprEngine::InliningModes IMode) { 24445796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzerDisplayProgress) 2451d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek return; 246f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 247fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek SourceManager &SM = Mgr->getASTContext().getSourceManager(); 248fc576514d06c46a7cac49500169411d82f38d04bTed Kremenek PresumedLoc Loc = SM.getPresumedLoc(D->getLocation()); 249cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (Loc.isValid()) { 250aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << "ANALYZE"; 2514eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 2524eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_Syntax) 2534eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose llvm::errs() << " (Syntax)"; 254a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks else if (Mode == AM_Path) { 255a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks llvm::errs() << " (Path, "; 256a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks switch (IMode) { 2578a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks case ExprEngine::Inline_Minimal: 2588a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks llvm::errs() << " Inline_Minimal"; 259a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks break; 2608a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks case ExprEngine::Inline_Regular: 2618a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks llvm::errs() << " Inline_Regular"; 262a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks break; 263a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks } 264a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks llvm::errs() << ")"; 265a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks } 2664eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose else 2674eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose assert(Mode == (AM_Syntax | AM_Path) && "Unexpected mode!"); 2684eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose 269aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks llvm::errs() << ": " << Loc.getFilename(); 270cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor if (isa<FunctionDecl>(D) || isa<ObjCMethodDecl>(D)) { 271cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor const NamedDecl *ND = cast<NamedDecl>(D); 272b8989f27f116ff2400e92a52c067a69846119eb5Benjamin Kramer llvm::errs() << ' ' << *ND << '\n'; 273cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 274cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (isa<BlockDecl>(D)) { 275cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << "block(line:" << Loc.getLine() << ",col:" 276cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor << Loc.getColumn() << '\n'; 277cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 278cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor else if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 279cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor Selector S = MD->getSelector(); 280cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor llvm::errs() << ' ' << S.getAsString(); 281cb7b1e17b63967317ab5cc55682168cf0380519aDouglas Gregor } 28235fa76d0bb6fb8c86159a7506efd094a4fe376d2Ted Kremenek } 2831d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 285651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void Initialize(ASTContext &Context) override { 2861d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek Ctx = &Context; 28745796b10d11869e86c6b85e24df165410536b313Ted Kremenek checkerMgr.reset(createCheckerManager(*Opts, PP.getLangOpts(), Plugins, 28808b86531ade68727c56918f162816075b87c864aJordy Rose PP.getDiagnostics())); 289c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek Mgr.reset(new AnalysisManager(*Ctx, 290c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getDiagnostics(), 291c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PP.getLangOpts(), 292c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek PathConsumers, 293c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateStoreMgr, 294c4bac8e376b98d633bb00ee5f510d5e58449753cTed Kremenek CreateConstraintMgr, 29543dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis checkerMgr.get(), 29645796b10d11869e86c6b85e24df165410536b313Ted Kremenek *Opts)); 2971d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek } 2981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2996a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Store the top level decls in the set to be processed later on. 3006a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// (Doing this pre-processing avoids deserialization of data from PCH.) 301651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool HandleTopLevelDecl(DeclGroupRef D) override; 302651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) override; 3036a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 304651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void HandleTranslationUnit(ASTContext &C) override; 30514cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenek 30675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks /// \brief Determine which inlining mode should be used when this function is 3078a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks /// analyzed. This allows to redefine the default inlining policies when 3088a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks /// analyzing a given function. 30975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes 3106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines getInliningModeForFunction(const Decl *D, const SetOfConstDecls &Visited); 31175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 3126a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Build the call graph for all the top level decls of this TU and 3136a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// use it to define the order in which the functions should be visited. 314469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose void HandleDeclsCallGraph(const unsigned LocalTUDeclsSize); 315aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 316aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \brief Run analyzes(syntax or path sensitive) on the given function. 317aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param Mode - determines if we are requesting syntax only or path 318aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// sensitive only analysis. 319aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// \param VisitedCallees - The output parameter, which is populated with the 320aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// set of functions which should be considered analyzed after analyzing the 321aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// given root function. 3226a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void HandleCode(Decl *D, AnalysisMode Mode, 3238a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks ExprEngine::InliningModes IMode = ExprEngine::Inline_Minimal, 3246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SetOfConstDecls *VisitedCallees = nullptr); 325aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 32675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks void RunPathSensitiveChecks(Decl *D, 32775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 32875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks SetOfConstDecls *VisitedCallees); 3296a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void ActionExprEngine(Decl *D, bool ObjCGCEnabled, 33075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 3316a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees); 332aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 333aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Visitors for the RecursiveASTVisitor. 334c8848f34bbde083b8d89f445eb605eaabf30d6a8Anna Zaks bool shouldWalkTypesOfTypeLocs() const { return false; } 335aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 336aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks /// Handle callbacks for arbitrary Decls. 337aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitDecl(Decl *D) { 3384eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode Mode = getModeForDecl(D, RecVisitorMode); 3394eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode & AM_Syntax) 3404eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose checkerMgr->runCheckersOnASTDecl(D, *Mgr, *RecVisitorBR); 341aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 342aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 343aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 344aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitFunctionDecl(FunctionDecl *FD) { 345aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks IdentifierInfo *II = FD->getIdentifier(); 346aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (II && II->getName().startswith("__inline")) 347aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 348aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 349aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // We skip function template definitions, as their semantics is 350aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // only determined when they are instantiated. 351aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (FD->isThisDeclarationADefinition() && 352aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks !FD->isDependentContext()) { 35375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 354aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(FD, RecVisitorMode); 355aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 356aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 357aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 358aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 359aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks bool VisitObjCMethodDecl(ObjCMethodDecl *MD) { 36075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (MD->isThisDeclarationADefinition()) { 36175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 362aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks HandleCode(MD, RecVisitorMode); 36375f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 364aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return true; 365aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks } 3664f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks 3674f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks bool VisitBlockDecl(BlockDecl *BD) { 3684f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (BD->hasBody()) { 3694f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks assert(RecVisitorMode == AM_Syntax || Mgr->shouldInlineCall() == false); 3704f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks HandleCode(BD, RecVisitorMode); 3714f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 3724f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks return true; 3734f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 3746a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 375651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines virtual void 376651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AddDiagnosticConsumer(PathDiagnosticConsumer *Consumer) override { 377651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines PathConsumers.push_back(Consumer); 378651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 379651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3806a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksprivate: 3816a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks void storeTopLevelDecls(DeclGroupRef DG); 3826a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3836a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks /// \brief Check if we should skip (not analyze) the given function. 3844eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose AnalysisMode getModeForDecl(Decl *D, AnalysisMode Mode); 3856a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 3861d9cbeb76cf4c36acf5545028e2b2ac207086442Ted Kremenek}; 387f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} // end anonymous namespace 388f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 389aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 390f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 391f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer implementation. 392f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 3936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesllvm::Timer* AnalysisConsumer::TUTotalTimer = nullptr; 394f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 3956a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksbool AnalysisConsumer::HandleTopLevelDecl(DeclGroupRef DG) { 3966a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 3976a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks return true; 3986a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 3996a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 4006a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef DG) { 4016a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks storeTopLevelDecls(DG); 4026a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 4036a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 4046a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::storeTopLevelDecls(DeclGroupRef DG) { 4056a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks for (DeclGroupRef::iterator I = DG.begin(), E = DG.end(); I != E; ++I) { 4066a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 4076a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Skip ObjCMethodDecl, wait for the objc container to avoid 4086a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // analyzing twice. 4096a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks if (isa<ObjCMethodDecl>(*I)) 4106a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks continue; 4116a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 412577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek LocalTUDecls.push_back(*I); 4136a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks } 4146a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks} 4156a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 416b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaksstatic bool shouldSkipFunction(const Decl *D, 4176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const SetOfConstDecls &Visited, 4186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const SetOfConstDecls &VisitedAsTopLevel) { 419b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (VisitedAsTopLevel.count(D)) 42075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks return true; 42175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 42275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to re-analyse the functions as top level in the following cases: 423fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - The 'init' methods should be reanalyzed because 424fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // ObjCNonNilReturnValueChecker assumes that '[super init]' never returns 42575f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // 'nil' and unless we analyze the 'init' functions as top level, we will 42675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // not catch errors within defensive code. 427fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // - We want to reanalyze all ObjC methods as top level to report Retain 428fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Count naming convention errors more aggressively. 429b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (isa<ObjCMethodDecl>(D)) 430fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks return false; 431fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 432fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks // Otherwise, if we visited the function before, do not reanalyze it. 433b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks return Visited.count(D); 434fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks} 435fbcb3f11fc90e9f00e6074e9b118b8dc11ca604cAnna Zaks 43675f31c4862643ab09479c979fabf754e7ffe1460Anna ZaksExprEngine::InliningModes 437b467051a9f212c57335f88f16e839e1dc8afc1c1Anna ZaksAnalysisConsumer::getInliningModeForFunction(const Decl *D, 4386bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const SetOfConstDecls &Visited) { 43975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // We want to reanalyze all ObjC methods as top level to report Retain 4408a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks // Count naming convention errors more aggressively. But we should tune down 44175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks // inlining when reanalyzing an already inlined function. 442b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (Visited.count(D)) { 443b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks assert(isa<ObjCMethodDecl>(D) && 44475f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks "We are only reanalyzing ObjCMethods."); 445b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks const ObjCMethodDecl *ObjCM = cast<ObjCMethodDecl>(D); 44675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks if (ObjCM->getMethodFamily() != OMF_init) 4478a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks return ExprEngine::Inline_Minimal; 44875f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks } 44975f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 4508a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks return ExprEngine::Inline_Regular; 45175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks} 45275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 453469ba550f54577f28e23ea42c293308fbcad6609Jordan Rosevoid AnalysisConsumer::HandleDeclsCallGraph(const unsigned LocalTUDeclsSize) { 454bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Build the Call Graph by adding all the top level declarations to the graph. 455694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // Note: CallGraph can trigger deserialization of more items from a pch 456694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // (though HandleInterestingDecl); triggering additions to LocalTUDecls. 457694a942b0a14e02757a695142c45437eec6e3684Anna Zaks // We rely on random access to add the initially processed Decls to CG. 458bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks CallGraph CG; 459694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 460eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks CG.addToCallGraph(LocalTUDecls[i]); 461eaa069075f060f58840af03e0bd5bd75bb27e809Anna Zaks } 462d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 463bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Walk over all of the call graph nodes in topological order, so that we 464bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // analyze parents before the children. Skip the functions inlined into 465bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // the previously processed functions. Use external Visited set to identify 466bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // inlined functions. The topological order allows the "do not reanalyze 467bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // previously inlined function" performance heuristic to be triggered more 468bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // often. 469b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls Visited; 470b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks SetOfConstDecls VisitedAsTopLevel; 471bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks llvm::ReversePostOrderTraversal<clang::CallGraph*> RPOT(&CG); 472bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks for (llvm::ReversePostOrderTraversal<clang::CallGraph*>::rpo_iterator 473bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks I = RPOT.begin(), E = RPOT.end(); I != E; ++I) { 474bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks NumFunctionTopLevel++; 475371b477836f289f2e9caaab58530f187b51bc86dTed Kremenek 476bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks CallGraphNode *N = *I; 477b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Decl *D = N->getDecl(); 478bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks 479bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks // Skip the abstract root node. 480bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks if (!D) 481bd80231672a7418aa1a99d3dbbe1774205c88f74Anna Zaks continue; 482b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks 4837fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Skip the functions which have been processed already or previously 4847fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // inlined. 485b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks if (shouldSkipFunction(D, Visited, VisitedAsTopLevel)) 4867fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks continue; 4877fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4887fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Analyze the function. 4896a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls VisitedCallees; 49075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks 491b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks HandleCode(D, AM_Path, getInliningModeForFunction(D, Visited), 4926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines (Mgr->options.InliningMode == All ? nullptr : &VisitedCallees)); 4937fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks 4947fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks // Add the visited callees to the global visited set. 495cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek for (SetOfConstDecls::iterator I = VisitedCallees.begin(), 496cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek E = VisitedCallees.end(); I != E; ++I) { 497b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks Visited.insert(*I); 4987fe8dcef71ae56e43fd7df345db2895f84f2d0caAnna Zaks } 499b467051a9f212c57335f88f16e839e1dc8afc1c1Anna Zaks VisitedAsTopLevel.insert(D); 500d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 501fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek} 502fee618af5dd7dee2caaa7347b372eb3dc5fdeffcTed Kremenek 50314cc9451de4a9539bf79e4e5d63248c2377426dbTed Kremenekvoid AnalysisConsumer::HandleTranslationUnit(ASTContext &C) { 504aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Don't run the actions if an error has occurred with parsing the file. 505aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks DiagnosticsEngine &Diags = PP.getDiagnostics(); 506aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Diags.hasErrorOccurred() || Diags.hasFatalErrorOccurred()) 507aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks return; 508aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 509c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks { 510d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->startTimer(); 511d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 512c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // Introduce a scope to destroy BR before Mgr. 513c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks BugReporter BR(*Mgr); 514c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks TranslationUnitDecl *TU = C.getTranslationUnitDecl(); 515c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnASTDecl(TU, *Mgr, BR); 516aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 517aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // Run the AST-only checks using the order in which functions are defined. 518aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // If inlining is not turned on, use the simplest function order for path 519aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks // sensitive analyzes as well. 5204eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode = AM_Syntax; 5214eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (!Mgr->shouldInlineCall()) 5224eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose RecVisitorMode |= AM_Path; 523aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks RecVisitorBR = &BR; 5246a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks 5256a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks // Process all the top level declarations. 526cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek // 527577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // Note: TraverseDecl may modify LocalTUDecls, but only by appending more 528577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // entries. Thus we don't use an iterator, but rely on LocalTUDecls 529577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // random access. By doing so, we automatically compensate for iterators 530577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek // possibly being invalidated, although this is a bit slower. 531694a942b0a14e02757a695142c45437eec6e3684Anna Zaks const unsigned LocalTUDeclsSize = LocalTUDecls.size(); 532694a942b0a14e02757a695142c45437eec6e3684Anna Zaks for (unsigned i = 0 ; i < LocalTUDeclsSize ; ++i) { 533577f14a34457032523e59dbbbacb88ca2cd4db57Ted Kremenek TraverseDecl(LocalTUDecls[i]); 534cb0a5039c243f5b0c178e70f424adac334e5789bTed Kremenek } 535aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 536aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks if (Mgr->shouldInlineCall()) 537469ba550f54577f28e23ea42c293308fbcad6609Jordan Rose HandleDeclsCallGraph(LocalTUDeclsSize); 538b317f8f5ca8737a5bbad97a3f7566a2dbd2ed61bZhongxing Xu 539c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks // After all decls handled, run checkers on the entire TranslationUnit. 540c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks checkerMgr->runCheckersOnEndOfTranslationUnit(TU, *Mgr, BR); 541aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaks 5426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines RecVisitorBR = nullptr; 543c5bdc556f6a65c677e0ed73f918c3000ecad33afAnna Zaks } 5449be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 545ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // Explicitly destroy the PathDiagnosticConsumer. This will flush its output. 546690a7f431d6863a101711e67636d51ddd13f35c5Ted Kremenek // FIXME: This should be replaced with something that doesn't rely on 547ef3643fbbbf66247c5e205497fae0f46e240c143David Blaikie // side-effects in PathDiagnosticConsumer's destructor. This is required when 548da17fd50ad485fd2a1fc5c2f055caacf532992daZhongxing Xu // used with option -disable-free. 5496bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Mgr.reset(nullptr); 550d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks 551d38f79543136ba68cd14b1dab0856474df1fbfd5Anna Zaks if (TUTotalTimer) TUTotalTimer->stopTimer(); 5526b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 5536b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks // Count how many basic blocks we have not covered. 5546b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions = FunctionSummaries.getTotalNumBasicBlocks(); 5556b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks if (NumBlocksInAnalyzedFunctions > 0) 5566b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks PercentReachableBlocks = 5576b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks (FunctionSummaries.getTotalNumVisitedBasicBlocks() * 100) / 5586b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks NumBlocksInAnalyzedFunctions; 5596b77ce8824cf62c2cfb61cf2d801eb3fcfbecffeAnna Zaks 560db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek} 561db09a4dee28a4515438af60f2d2b4a83e4965c31Ted Kremenek 562d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaksstatic std::string getFunctionName(const Decl *D) { 563d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const ObjCMethodDecl *ID = dyn_cast<ObjCMethodDecl>(D)) { 564d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ID->getSelector().getAsString(); 565d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 566d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (const FunctionDecl *ND = dyn_cast<FunctionDecl>(D)) { 567d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks IdentifierInfo *II = ND->getIdentifier(); 568d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks if (II) 569d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return II->getName(); 570d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks } 571d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks return ""; 572d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks} 573d95e0b830ed031f2ea0e15e3679cd51b9bf23a9cAnna Zaks 5744eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::AnalysisMode 5754eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan RoseAnalysisConsumer::getModeForDecl(Decl *D, AnalysisMode Mode) { 57645796b10d11869e86c6b85e24df165410536b313Ted Kremenek if (!Opts->AnalyzeSpecificFunction.empty() && 57745796b10d11869e86c6b85e24df165410536b313Ted Kremenek getFunctionName(D) != Opts->AnalyzeSpecificFunction) 5784eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5804eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // Unless -analyze-all is specified, treat decls differently depending on 5814eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // where they came from: 5824eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Main source file: run both path-sensitive and non-path-sensitive checks. 5834eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - Header files: run non-path-sensitive checks only. 5844eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose // - System headers: don't run any checks. 585fcd783d583d270b7ec1ec3e0fcf83cd93d30e381Ted Kremenek SourceManager &SM = Ctx->getSourceManager(); 586402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth SourceLocation SL = SM.getExpansionLoc(D->getLocation()); 58724146975f1af8c1b4b14e8545f218129d0e7dfebEli Friedman if (!Opts->AnalyzeAll && !SM.isInMainFile(SL)) { 5884eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (SL.isInvalid() || SM.isInSystemHeader(SL)) 5894eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return AM_None; 5904eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode & ~AM_Path; 5914eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose } 59298520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 5934eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose return Mode; 59498520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks} 59598520835eb1aa091429afa06e9f4f7ebe3864d34Anna Zaks 596aa5609891df937291bf962dd2fc7deb2ceae292fAnna Zaksvoid AnalysisConsumer::HandleCode(Decl *D, AnalysisMode Mode, 59775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 5986a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 5994f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (!D->hasBody()) 6004f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks return; 6014eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose Mode = getModeForDecl(D, Mode); 6024eff6b5d6a5cbb6bd669854a84365aa61d70819eJordan Rose if (Mode == AM_None) 6031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return; 604f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 605a5245a51593aa45c2a5ef38a10861697d29c7789Anna Zaks DisplayFunction(D, Mode, IMode); 60684c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks CFG *DeclCFG = Mgr->getCFG(D); 60784c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks if (DeclCFG) { 60884c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks unsigned CFGSize = DeclCFG->size(); 60984c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks MaxCFGSize = MaxCFGSize < CFGSize ? CFGSize : MaxCFGSize; 61084c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks } 61184c1f4b1edddf74f8080cfc470796c2c498b5d43Anna Zaks 6121d26f48dc2eea1c07431ca1519d7034a21b9bcffTed Kremenek // Clear the AnalysisManager of old AnalysisDeclContexts. 61358f5ec7d56b1ebf5f90ee11226ebe7663f2821eaTed Kremenek Mgr->ClearContexts(); 6149fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis BugReporter BR(*Mgr); 6154f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks 6164f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if (Mode & AM_Syntax) 6174f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks checkerMgr->runCheckersOnASTBody(D, *Mgr, BR); 6184f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks if ((Mode & AM_Path) && checkerMgr->hasPathSensitiveCheckers()) { 6194f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks RunPathSensitiveChecks(D, IMode, VisitedCallees); 6208a660eb1084294a903f6dcc00bf2fa4e3bc92cfcAnna Zaks if (IMode != ExprEngine::Inline_Minimal) 6214f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks NumFunctionsAnalyzed++; 6224f858dfd42c89b67200dac0afc228a0baa323691Anna Zaks } 623f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 624f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 625f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 626d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis// Path-sensitive checking. 627f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 628f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 6293fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaksvoid AnalysisConsumer::ActionExprEngine(Decl *D, bool ObjCGCEnabled, 63075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6316a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *VisitedCallees) { 632a5937bbfd19e61d651a58b0f0ffeef68457902a5Ted Kremenek // Construct the analysis engine. First check if the CFG is valid. 63375d03cffe20b5c945ef04eba208efb0437339997Ted Kremenek // FIXME: Inter-procedural analysis will need to handle invalid CFGs. 6343fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks if (!Mgr->getCFG(D)) 635f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek return; 6363fd5f370a28552976c52e76c3035d79012d78ddaAnna Zaks 637d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek // See if the LiveVariables analysis scales. 638d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek if (!Mgr->getAnalysisDeclContext(D)->getAnalysis<RelaxedLiveVariables>()) 639d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek return; 640d4aeb8050a1d0fe47c53a73361c8b0b8ac310f46Ted Kremenek 64175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine Eng(*Mgr, ObjCGCEnabled, VisitedCallees, &FunctionSummaries,IMode); 642f6eafcca7734274d277afa121f2c4fb025a54218Ted Kremenek 643f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Set the graph auditor. 644651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<ExplodedNode::Auditor> Auditor; 6453b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithUbiGraph) { 646f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek Auditor.reset(CreateUbiViz()); 647c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xu ExplodedNode::SetAuditor(Auditor.get()); 648f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 6491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 650b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek // Execute the worklist algorithm. 651d200187bd27f9ad68699693a6e57f9ee3ff260faJordy Rose Eng.ExecuteWorkList(Mgr->getAnalysisDeclContextManager().getStackFrame(D), 652ac3a3e7a402cd349dd2b7d70cd92c5fe702ae831Anna Zaks Mgr->options.getMaxNodesPerTopLevelFunction()); 6531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 654f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Release the auditor (if any) so that it doesn't monitor the graph 655f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // created BugReporter. 6566bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ExplodedNode::SetAuditor(nullptr); 6573df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek 65834d7734b6ed1d9c0f647405e065251eb67f42badTed Kremenek // Visualize the exploded graph. 6593b8a04004afa46057a9af4afbd086be71d619793Ted Kremenek if (Mgr->options.visualizeExplodedGraphWithGraphViz) 660255d4d4226b24036ceb11228fbb74286e58620f7Ted Kremenek Eng.ViewGraph(Mgr->options.TrimGraph); 6611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6623df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek // Display warnings. 6633df6421150271266b5a90fd4c6bfa6566c38c036Ted Kremenek Eng.getBugReporter().FlushReports(); 664bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek} 665bc46f345838b1c0d420dbd3655c94f5f360fb5b8Ted Kremenek 6666a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaksvoid AnalysisConsumer::RunPathSensitiveChecks(Decl *D, 66775f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ExprEngine::InliningModes IMode, 6686a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3Anna Zaks SetOfConstDecls *Visited) { 66917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 6704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie switch (Mgr->getLangOpts().getGC()) { 67117a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::NonGC: 67275f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 67317a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 67417a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 67517a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::GCOnly: 67675f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 67717a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 67817a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose 67917a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose case LangOptions::HybridGC: 68075f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, false, IMode, Visited); 68175f31c4862643ab09479c979fabf754e7ffe1460Anna Zaks ActionExprEngine(D, true, IMode, Visited); 68217a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose break; 68317a38e2636a8b1ce473fc6504c4b16cb09db29f4Jordy Rose } 684b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek} 685b35a74a40c1d2656a25e560e773ed48bdf49f9c0Ted Kremenek 686f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 687f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek// AnalysisConsumer creation. 688f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek//===----------------------------------------------------------------------===// 689f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 690651f13cea278ec967336033dd032faef0e9fc2ecStephen HinesAnalysisASTConsumer * 691651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesento::CreateAnalysisConsumer(const Preprocessor &pp, const std::string &outDir, 692651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines AnalyzerOptionsRef opts, 693651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ArrayRef<std::string> plugins) { 69408b86531ade68727c56918f162816075b87c864aJordy Rose // Disable the effects of '-Werror' when using the AnalysisConsumer. 695efceabd2380f49306bc0229583458e93b062094bDaniel Dunbar pp.getDiagnostics().setWarningsAsErrors(false); 696be1fe1eb12a1cb91c8e3a9fcc2db4dfe989def6cTed Kremenek 69708b86531ade68727c56918f162816075b87c864aJordy Rose return new AnalysisConsumer(pp, outDir, opts, plugins); 698f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek} 699f4381fddf152a63e1ac97185293c47ec0ac2f1a6Ted Kremenek 700f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 701f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek// Ubigraph Visualization. FIXME: Move to separate file. 702f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek//===----------------------------------------------------------------------===// 703f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 704f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremeneknamespace { 7051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 706c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xuclass UbigraphViz : public ExplodedNode::Auditor { 707651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<raw_ostream> Out; 708d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola std::string Filename; 709f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned Cntr; 710f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 711f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek typedef llvm::DenseMap<void*,unsigned> VMap; 712f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap M; 7131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 714f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenekpublic: 715d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola UbigraphViz(raw_ostream *Out, StringRef Filename); 7161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 717710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek ~UbigraphViz(); 7181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 719651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void AddEdge(ExplodedNode *Src, ExplodedNode *Dst) override; 720f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek}; 7211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 722f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} // end anonymous namespace 723f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 724c5619d901a68dc27a9e310a6a831f03efebcd950Zhongxing Xustatic ExplodedNode::Auditor* CreateUbiViz() { 725b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola SmallString<128> P; 726b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola int FD; 7271ec4a86a867fc04f35d13bc9e33b04cf2171fe41Rafael Espindola llvm::sys::fs::createTemporaryFile("llvm_ubi", "", FD, P); 728b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola llvm::errs() << "Writing '" << P.str() << "'.\n"; 7291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 730651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<llvm::raw_fd_ostream> Stream; 731b8e60d9a8ff06110efab37fc123b3c56937367a9Rafael Espindola Stream.reset(new llvm::raw_fd_ostream(FD, true)); 7321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 733651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return new UbigraphViz(Stream.release(), P); 734f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 735f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 7369c378f705405d37f49795d5e915989de774fe11fTed Kremenekvoid UbigraphViz::AddEdge(ExplodedNode *Src, ExplodedNode *Dst) { 7371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 73845479c88c8a44c55d27c3bd855273bb318082f37Ted Kremenek assert (Src != Dst && "Self-edges are not allowed."); 7391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 740f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Src. If it is a new node, it's a root. 741f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator SrcI= M.find(Src); 742f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned SrcID; 7431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 744f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (SrcI == M.end()) { 745f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Src] = SrcID = Cntr++; 746f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << SrcID << ", ('color','#00ff00'))\n"; 747f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 748f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek else 749f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek SrcID = SrcI->second; 7501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 751f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Lookup the Dst. 752f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek VMap::iterator DstI= M.find(Dst); 753f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek unsigned DstID; 754f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 755f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek if (DstI == M.end()) { 756f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek M[Dst] = DstID = Cntr++; 757f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek *Out << "('vertex', " << DstID << ")\n"; 758f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek } 75956b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek else { 76056b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek // We have hit DstID before. Change its style to reflect a cache hit. 761f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek DstID = DstI->second; 76256b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('change_vertex_style', " << DstID << ", 1)\n"; 76356b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek } 764f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 765f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek // Add the edge. 7661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump *Out << "('edge', " << SrcID << ", " << DstID 767d1289327f7d2126d732e23cc189ecd0aa5d07cbbTed Kremenek << ", ('arrow','true'), ('oriented', 'true'))\n"; 768f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek} 769f8ce6991f41d55b6e8526b7a7919771428e2b181Ted Kremenek 770d2a5bee210218220a57d9f61a66e7f766a21d313Rafael EspindolaUbigraphViz::UbigraphViz(raw_ostream *Out, StringRef Filename) 771d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola : Out(Out), Filename(Filename), Cntr(0) { 77256b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 77356b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style_attribute', 0, ('shape', 'icosahedron'))\n"; 77456b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek *Out << "('vertex_style', 1, 0, ('shape', 'sphere'), ('color', '#ffcc66')," 77556b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek " ('size', '1.5'))\n"; 77656b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek} 77756b98719b0dbebb33cb228afa888c47156be2381Ted Kremenek 778710ad9343f32b33b336369b20edad1a21a0b3299Ted KremenekUbigraphViz::~UbigraphViz() { 7796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Out.reset(nullptr); 7806cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Running 'ubiviz' program... "; 781710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::string ErrMsg; 7822289933d3dfad854c006c02738abb1c57d1d587eRafael Espindola std::string Ubiviz = llvm::sys::FindProgramByName("ubiviz"); 783710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek std::vector<const char*> args; 784710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Ubiviz.c_str()); 785710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek args.push_back(Filename.c_str()); 7866bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines args.push_back(nullptr); 7871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (llvm::sys::ExecuteAndWait(Ubiviz, &args[0], nullptr, nullptr, 0, 0, 7896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines &ErrMsg)) { 7906cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer llvm::errs() << "Error viewing graph: " << ErrMsg << "\n"; 791710ad9343f32b33b336369b20edad1a21a0b3299Ted Kremenek } 7921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 793d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola // Delete the file. 794d2a5bee210218220a57d9f61a66e7f766a21d313Rafael Espindola llvm::sys::fs::remove(Filename); 795932680ecdeab4c216ce7c0736093d3dcd2f60f6dDaniel Dunbar} 796