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Add result to README resolve #82
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,225 @@ | ||
| /** | ||
| * @file FutagSimpleChecker.cpp | ||
| * @author Tran Chi Thien (thientcgithub@gmail.com) | ||
| * @brief | ||
| * @version 2.0.5 | ||
| * @date 2023-04-17 | ||
| * | ||
| * @copyright Copyright (c) 2023 | ||
| * | ||
| */ | ||
|
|
||
| #include <algorithm> | ||
| #include <fstream> | ||
| #include <iomanip> | ||
| #include <iostream> | ||
| #include <sstream> | ||
| #include <string> | ||
| #include <thread> | ||
| #include <utility> | ||
| #include <vector> | ||
|
|
||
| #include "Futag/MatchFinder.h" | ||
| #include "nlohmann/json.hpp" | ||
| #include "clang/AST/Decl.h" | ||
| #include "clang/AST/ODRHash.h" | ||
| #include "clang/AST/RecursiveASTVisitor.h" | ||
| #include "clang/AST/Type.h" | ||
| #include "clang/ASTMatchers/ASTMatchFinder.h" | ||
| #include "clang/ASTMatchers/ASTMatchers.h" | ||
| #include "clang/Analysis/AnalysisDeclContext.h" | ||
| #include "clang/Analysis/CFG.h" | ||
| #include "clang/Basic/SourceManager.h" | ||
| #include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h" | ||
| #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" | ||
| #include "clang/StaticAnalyzer/Core/Checker.h" | ||
| #include "clang/StaticAnalyzer/Core/CheckerManager.h" | ||
| #include "clang/StaticAnalyzer/Core/PathSensitive/AnalysisManager.h" | ||
| #include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h" | ||
| #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" | ||
| #include "clang/Tooling/Tooling.h" | ||
| #include "llvm/ADT/SmallVector.h" | ||
| #include "llvm/ADT/StringRef.h" | ||
| #include "llvm/Support/ErrorHandling.h" | ||
| #include "llvm/Support/FileSystem.h" | ||
| #include "llvm/Support/Path.h" | ||
|
|
||
| #include "llvm/Support/raw_ostream.h" | ||
|
|
||
| #include "Futag/Basic.h" | ||
| #include "Futag/Utils.h" | ||
|
|
||
| using namespace llvm; | ||
| using namespace clang; | ||
| using namespace ento; | ||
| using namespace nlohmann; | ||
| using namespace futag; | ||
|
|
||
| //===----------------------------------------------------------------------===// | ||
| // Checker to analyze function declarations | ||
| //===----------------------------------------------------------------------===// | ||
| namespace { | ||
|
|
||
| class FutagMatchFuncDeclCallBack : public MatchFinder::MatchCallback { | ||
| public: | ||
| FutagMatchFuncDeclCallBack( AnalysisManager &Mgr) | ||
| : Mgr{Mgr} {} | ||
| AnalysisManager &Mgr; // For passing the AnalysisManager | ||
| virtual void run(const MatchFinder::MatchResult &Result); | ||
| }; | ||
|
|
||
| class FutagSimpleChecker : public Checker<check::ASTDecl<TranslationUnitDecl>> { | ||
|
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| public: | ||
| // Entry point. Collects all needed information using recursive ast visitor | ||
| void checkASTDecl(const TranslationUnitDecl *TUD, AnalysisManager &Mgr, | ||
| BugReporter &BR) const; | ||
|
|
||
| /* Collects information about function */ | ||
| void VisitFunction(const FunctionDecl *func, AnalysisManager &Mgr) const; | ||
| /* Collects information about struct declarations*/ | ||
| void VisitRecord(const RecordDecl *func, AnalysisManager &Mgr) const; | ||
| /* Collects information about typedefs */ | ||
| void VisitTypedef(const TypedefDecl *func, AnalysisManager &Mgr) const; | ||
| /* Collects information about enums */ | ||
| void VisitEnum(const EnumDecl *func, AnalysisManager &Mgr) const; | ||
| }; | ||
|
|
||
| } // namespace | ||
|
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| void FutagMatchFuncDeclCallBack::run(const MatchFinder::MatchResult &Result) { | ||
| const auto *func_decl = Result.Nodes.getNodeAs<FunctionDecl>("functionDe"); | ||
|
|
||
| if (!func_decl) { | ||
| return; | ||
| } | ||
| llvm::outs()<< "\n-- Found function declaration: \"" << func_decl->getDeclName().getAsString() << " "; | ||
| // If the available function is defined in system header file, then skip. | ||
|
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| FullSourceLoc func_begin_loc = | ||
| Mgr.getASTContext().getFullLoc(func_decl->getBeginLoc()); | ||
| int32_t curr_func_begin_loc = func_begin_loc.getSpellingLineNumber(); | ||
| auto fe = func_begin_loc.getFileEntry(); | ||
| std::string file_name; | ||
| std::string parent_hash = ""; | ||
|
|
||
| if (fe->tryGetRealPathName().empty()) { | ||
| if (fe->getName().empty()) { | ||
| std::cerr << " -- Debug info: Cannot find filename and filepath!\n"; | ||
| } else { | ||
| file_name = fe->getName().str(); | ||
| } | ||
| } else { | ||
| file_name = fe->tryGetRealPathName().str(); | ||
| } | ||
| llvm::outs()<< " in file \""<< file_name << "\" \n\n"; | ||
| return; | ||
| } | ||
| void FutagSimpleChecker::checkASTDecl(const TranslationUnitDecl *TUD, | ||
| AnalysisManager &Mgr, BugReporter &BR) const { | ||
|
|
||
| struct LocalVisitor : public RecursiveASTVisitor<LocalVisitor> { | ||
| const FutagSimpleChecker *futag_checker; | ||
| AnalysisManager &analysisMgr; | ||
|
|
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| explicit LocalVisitor(const FutagSimpleChecker *Checker, | ||
| AnalysisManager &AnalysisMgr) | ||
| : futag_checker(Checker), analysisMgr(AnalysisMgr) {} | ||
|
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| /* callback when a function declaration is encountered */ | ||
| bool VisitFunctionDecl(FunctionDecl *FD) { | ||
| futag_checker->VisitFunction(FD, analysisMgr); | ||
| return true; | ||
| } | ||
|
|
||
| /* callback when a struct declaration is encountered */ | ||
| bool VisitRecordDecl(RecordDecl *RD) { | ||
| futag_checker->VisitRecord(RD, analysisMgr); | ||
| return true; | ||
| } | ||
|
|
||
| /* callback when a typedef declaration is encountered */ | ||
| bool VisitTypedefDecl(TypedefDecl *TD) { | ||
| futag_checker->VisitTypedef(TD, analysisMgr); | ||
| return true; | ||
| } | ||
|
|
||
| /* callback when a enum declaration is encountered */ | ||
| bool VisitEnumDecl(EnumDecl *ED) { | ||
| futag_checker->VisitEnum(ED, analysisMgr); | ||
| return true; | ||
| } | ||
| }; | ||
|
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| LocalVisitor visitor(this, Mgr); | ||
| visitor.TraverseDecl(const_cast<TranslationUnitDecl *>(TUD)); | ||
| } | ||
|
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| // Called for every function declaration | ||
| void FutagSimpleChecker::VisitFunction(const FunctionDecl *func, | ||
| AnalysisManager &Mgr) const { | ||
| llvm::outs()<< "-- Analyzing function: \"" << func->getDeclName().getAsString() << "\"\n"; | ||
| // If the available function is defined in system header file, then skip. | ||
| if (Mgr.getSourceManager().isInSystemHeader(func->getBeginLoc())) { | ||
| llvm::outs()<< " } \""<< func->getDeclName().getAsString() << "\" is in system headers!\n"; | ||
| return; | ||
| } | ||
|
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||
|
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| FullSourceLoc func_begin_loc = | ||
| Mgr.getASTContext().getFullLoc(func->getBeginLoc()); | ||
| FullSourceLoc func_end_loc = | ||
| Mgr.getASTContext().getFullLoc(func->getEndLoc()); | ||
| if (!func_begin_loc.getFileEntry()) { | ||
| return; | ||
| } | ||
| int32_t curr_func_begin_loc = func_begin_loc.getSpellingLineNumber(); | ||
| auto fe = func_begin_loc.getFileEntry(); | ||
| std::string file_name; | ||
| std::string parent_hash = ""; | ||
|
|
||
| if (fe->tryGetRealPathName().empty()) { | ||
| if (fe->getName().empty()) { | ||
| std::cerr << " -- Debug info: Cannot find filename and filepath!\n"; | ||
| } else { | ||
| file_name = fe->getName().str(); | ||
| } | ||
| } else { | ||
| file_name = fe->tryGetRealPathName().str(); | ||
| } | ||
| llvm::outs()<< " in file \""<< file_name << "\" \n"; | ||
|
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| MatchFinder Finder; | ||
| // Match all CallExpression of target function | ||
| auto match_callexpr = | ||
| functionDecl(hasName(func->getDeclName().getAsString())) | ||
| .bind("functionDe"); | ||
|
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| FutagMatchFuncDeclCallBack target_func_call_callback{ Mgr};; | ||
| Finder.addMatcher(match_callexpr, &target_func_call_callback); | ||
| Finder.matchAST(Mgr.getASTContext()); | ||
|
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| return; | ||
| } | ||
|
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| void FutagSimpleChecker::VisitRecord(const RecordDecl *RD, | ||
| AnalysisManager &Mgr) const { | ||
|
|
||
| return; | ||
| } | ||
| void FutagSimpleChecker::VisitTypedef(const TypedefDecl *TD, | ||
| AnalysisManager &Mgr) const { | ||
| return; | ||
| } | ||
|
|
||
| void FutagSimpleChecker::VisitEnum(const EnumDecl *ED, AnalysisManager &Mgr) const { | ||
| return; | ||
| } | ||
|
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| void ento::registerFutagSimpleChecker(CheckerManager &Mgr) { | ||
| Mgr.registerChecker<FutagSimpleChecker>(); | ||
| } | ||
|
|
||
| bool ento::shouldRegisterFutagSimpleChecker(const CheckerManager &mgr) { | ||
| return true; | ||
| } |
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