diff options
Diffstat (limited to 'clang/lib/Analysis')
11 files changed, 169 insertions, 0 deletions
diff --git a/clang/lib/Analysis/CMakeLists.txt b/clang/lib/Analysis/CMakeLists.txt index 940a3dfe6f6..92717143467 100644 --- a/clang/lib/Analysis/CMakeLists.txt +++ b/clang/lib/Analysis/CMakeLists.txt @@ -34,3 +34,5 @@ add_clang_library(clangAnalysis clangBasic clangLex ) + +add_subdirectory(plugins) diff --git a/clang/lib/Analysis/plugins/CMakeLists.txt b/clang/lib/Analysis/plugins/CMakeLists.txt new file mode 100644 index 00000000000..f7dbc936952 --- /dev/null +++ b/clang/lib/Analysis/plugins/CMakeLists.txt @@ -0,0 +1,5 @@ +if(LLVM_ENABLE_PLUGINS) + add_subdirectory(SampleAnalyzer) + add_subdirectory(CheckerDependencyHandling) + add_subdirectory(CheckerOptionHandling) +endif() diff --git a/clang/lib/Analysis/plugins/CheckerDependencyHandling/CMakeLists.txt b/clang/lib/Analysis/plugins/CheckerDependencyHandling/CMakeLists.txt new file mode 100644 index 00000000000..0a8ff48755f --- /dev/null +++ b/clang/lib/Analysis/plugins/CheckerDependencyHandling/CMakeLists.txt @@ -0,0 +1,10 @@ +set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/CheckerDependencyHandlingAnalyzerPlugin.exports) +add_llvm_library(CheckerDependencyHandlingAnalyzerPlugin MODULE CheckerDependencyHandling.cpp PLUGIN_TOOL clang) + +target_link_libraries(CheckerDependencyHandlingAnalyzerPlugin PRIVATE + clangAnalysis + clangAST + clangStaticAnalyzerCore + clangStaticAnalyzerFrontend + LLVMSupport + ) diff --git a/clang/lib/Analysis/plugins/CheckerDependencyHandling/CheckerDependencyHandling.cpp b/clang/lib/Analysis/plugins/CheckerDependencyHandling/CheckerDependencyHandling.cpp new file mode 100644 index 00000000000..be8e1200d0b --- /dev/null +++ b/clang/lib/Analysis/plugins/CheckerDependencyHandling/CheckerDependencyHandling.cpp @@ -0,0 +1,28 @@ +#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" +#include "clang/StaticAnalyzer/Core/Checker.h" +#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" +#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h" + +using namespace clang; +using namespace ento; + +namespace { +struct Dependency : public Checker<check::BeginFunction> { + void checkBeginFunction(CheckerContext &Ctx) const {} +}; +struct DependendentChecker : public Checker<check::BeginFunction> { + void checkBeginFunction(CheckerContext &Ctx) const {} +}; +} // end anonymous namespace + +// Register plugin! +extern "C" void clang_registerCheckers(CheckerRegistry ®istry) { + registry.addChecker<Dependency>("example.Dependency", "", ""); + registry.addChecker<DependendentChecker>("example.DependendentChecker", "", + ""); + + registry.addDependency("example.DependendentChecker", "example.Dependency"); +} + +extern "C" const char clang_analyzerAPIVersionString[] = + CLANG_ANALYZER_API_VERSION_STRING; diff --git a/clang/lib/Analysis/plugins/CheckerDependencyHandling/CheckerDependencyHandlingAnalyzerPlugin.exports b/clang/lib/Analysis/plugins/CheckerDependencyHandling/CheckerDependencyHandlingAnalyzerPlugin.exports new file mode 100644 index 00000000000..8d9ff882cfb --- /dev/null +++ b/clang/lib/Analysis/plugins/CheckerDependencyHandling/CheckerDependencyHandlingAnalyzerPlugin.exports @@ -0,0 +1,2 @@ +clang_registerCheckers +clang_analyzerAPIVersionString diff --git a/clang/lib/Analysis/plugins/CheckerOptionHandling/CMakeLists.txt b/clang/lib/Analysis/plugins/CheckerOptionHandling/CMakeLists.txt new file mode 100644 index 00000000000..6e289933c2d --- /dev/null +++ b/clang/lib/Analysis/plugins/CheckerOptionHandling/CMakeLists.txt @@ -0,0 +1,10 @@ +set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/CheckerOptionHandlingAnalyzerPlugin.exports) +add_llvm_library(CheckerOptionHandlingAnalyzerPlugin MODULE CheckerOptionHandling.cpp PLUGIN_TOOL clang) + +target_link_libraries(CheckerOptionHandlingAnalyzerPlugin PRIVATE + clangAnalysis + clangAST + clangStaticAnalyzerCore + clangStaticAnalyzerFrontend + LLVMSupport + ) diff --git a/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandling.cpp b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandling.cpp new file mode 100644 index 00000000000..77de3630ae7 --- /dev/null +++ b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandling.cpp @@ -0,0 +1,44 @@ +#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" +#include "clang/StaticAnalyzer/Core/Checker.h" +#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" +#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h" + +using namespace clang; +using namespace ento; + +namespace { +struct MyChecker : public Checker<check::BeginFunction> { + void checkBeginFunction(CheckerContext &Ctx) const {} +}; + +void registerMyChecker(CheckerManager &Mgr) { + MyChecker *Checker = Mgr.registerChecker<MyChecker>(); + llvm::outs() << "Example option is set to " + << (Mgr.getAnalyzerOptions().getCheckerBooleanOption( + Checker, "ExampleOption") + ? "true" + : "false") + << '\n'; +} + +bool shouldRegisterMyChecker(const LangOptions &LO) { return true; } + +} // end anonymous namespace + +// Register plugin! +extern "C" void clang_registerCheckers(CheckerRegistry ®istry) { + registry.addChecker(registerMyChecker, shouldRegisterMyChecker, + "example.MyChecker", "Example Description", + "example.mychecker.documentation.nonexistent.html", + /*isHidden*/false); + + registry.addCheckerOption(/*OptionType*/ "bool", + /*CheckerFullName*/ "example.MyChecker", + /*OptionName*/ "ExampleOption", + /*DefaultValStr*/ "false", + /*Description*/ "This is an example checker opt.", + /*DevelopmentStage*/ "released"); +} + +extern "C" const char clang_analyzerAPIVersionString[] = + CLANG_ANALYZER_API_VERSION_STRING; diff --git a/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandlingAnalyzerPlugin.exports b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandlingAnalyzerPlugin.exports new file mode 100644 index 00000000000..8d9ff882cfb --- /dev/null +++ b/clang/lib/Analysis/plugins/CheckerOptionHandling/CheckerOptionHandlingAnalyzerPlugin.exports @@ -0,0 +1,2 @@ +clang_registerCheckers +clang_analyzerAPIVersionString diff --git a/clang/lib/Analysis/plugins/SampleAnalyzer/CMakeLists.txt b/clang/lib/Analysis/plugins/SampleAnalyzer/CMakeLists.txt new file mode 100644 index 00000000000..639a97f2531 --- /dev/null +++ b/clang/lib/Analysis/plugins/SampleAnalyzer/CMakeLists.txt @@ -0,0 +1,10 @@ +set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_CURRENT_SOURCE_DIR}/SampleAnalyzerPlugin.exports) +add_llvm_library(SampleAnalyzerPlugin MODULE MainCallChecker.cpp PLUGIN_TOOL clang) + +target_link_libraries(SampleAnalyzerPlugin PRIVATE + clangAnalysis + clangAST + clangStaticAnalyzerCore + clangStaticAnalyzerFrontend + LLVMSupport + ) diff --git a/clang/lib/Analysis/plugins/SampleAnalyzer/MainCallChecker.cpp b/clang/lib/Analysis/plugins/SampleAnalyzer/MainCallChecker.cpp new file mode 100644 index 00000000000..8bd4085108e --- /dev/null +++ b/clang/lib/Analysis/plugins/SampleAnalyzer/MainCallChecker.cpp @@ -0,0 +1,54 @@ +#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h" +#include "clang/StaticAnalyzer/Core/Checker.h" +#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h" +#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h" + +using namespace clang; +using namespace ento; + +namespace { +class MainCallChecker : public Checker<check::PreStmt<CallExpr>> { + mutable std::unique_ptr<BugType> BT; + +public: + void checkPreStmt(const CallExpr *CE, CheckerContext &C) const; +}; +} // end anonymous namespace + +void MainCallChecker::checkPreStmt(const CallExpr *CE, + CheckerContext &C) const { + const Expr *Callee = CE->getCallee(); + const FunctionDecl *FD = C.getSVal(Callee).getAsFunctionDecl(); + + if (!FD) + return; + + // Get the name of the callee. + IdentifierInfo *II = FD->getIdentifier(); + if (!II) // if no identifier, not a simple C function + return; + + if (II->isStr("main")) { + ExplodedNode *N = C.generateErrorNode(); + if (!N) + return; + + if (!BT) + BT.reset(new BugType(this, "call to main", "example analyzer plugin")); + + std::unique_ptr<BugReport> report = + llvm::make_unique<BugReport>(*BT, BT->getName(), N); + report->addRange(Callee->getSourceRange()); + C.emitReport(std::move(report)); + } +} + +// Register plugin! +extern "C" void clang_registerCheckers(CheckerRegistry ®istry) { + registry.addChecker<MainCallChecker>( + "example.MainCallChecker", "Disallows calls to functions called main", + ""); +} + +extern "C" const char clang_analyzerAPIVersionString[] = + CLANG_ANALYZER_API_VERSION_STRING; diff --git a/clang/lib/Analysis/plugins/SampleAnalyzer/SampleAnalyzerPlugin.exports b/clang/lib/Analysis/plugins/SampleAnalyzer/SampleAnalyzerPlugin.exports new file mode 100644 index 00000000000..8d9ff882cfb --- /dev/null +++ b/clang/lib/Analysis/plugins/SampleAnalyzer/SampleAnalyzerPlugin.exports @@ -0,0 +1,2 @@ +clang_registerCheckers +clang_analyzerAPIVersionString |
