134 lines
4.8 KiB
C++
134 lines
4.8 KiB
C++
//===--- CheckerRegistration.cpp - Registration for the Analyzer Checkers -===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Defines the registration function for the analyzer checkers.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/StaticAnalyzer/Frontend/CheckerRegistration.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Frontend/FrontendDiagnostic.h"
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#include "clang/StaticAnalyzer/Checkers/ClangCheckers.h"
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#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
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#include "clang/StaticAnalyzer/Core/CheckerManager.h"
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#include "clang/StaticAnalyzer/Core/CheckerOptInfo.h"
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#include "clang/StaticAnalyzer/Core/CheckerRegistry.h"
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#include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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using namespace ento;
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using llvm::sys::DynamicLibrary;
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namespace {
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class ClangCheckerRegistry : public CheckerRegistry {
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typedef void (*RegisterCheckersFn)(CheckerRegistry &);
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static bool isCompatibleAPIVersion(const char *versionString);
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static void warnIncompatible(DiagnosticsEngine *diags, StringRef pluginPath,
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const char *pluginAPIVersion);
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public:
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ClangCheckerRegistry(ArrayRef<std::string> plugins,
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DiagnosticsEngine *diags = 0);
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};
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} // end anonymous namespace
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ClangCheckerRegistry::ClangCheckerRegistry(ArrayRef<std::string> plugins,
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DiagnosticsEngine *diags) {
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registerBuiltinCheckers(*this);
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for (ArrayRef<std::string>::iterator i = plugins.begin(), e = plugins.end();
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i != e; ++i) {
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// Get access to the plugin.
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DynamicLibrary lib = DynamicLibrary::getPermanentLibrary(i->c_str());
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// See if it's compatible with this build of clang.
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const char *pluginAPIVersion =
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(const char *) lib.getAddressOfSymbol("clang_analyzerAPIVersionString");
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if (!isCompatibleAPIVersion(pluginAPIVersion)) {
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warnIncompatible(diags, *i, pluginAPIVersion);
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continue;
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}
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// Register its checkers.
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RegisterCheckersFn registerPluginCheckers =
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(RegisterCheckersFn) (intptr_t) lib.getAddressOfSymbol(
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"clang_registerCheckers");
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if (registerPluginCheckers)
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registerPluginCheckers(*this);
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}
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}
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bool ClangCheckerRegistry::isCompatibleAPIVersion(const char *versionString) {
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// If the version string is null, it's not an analyzer plugin.
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if (versionString == 0)
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return false;
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// For now, none of the static analyzer API is considered stable.
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// Versions must match exactly.
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if (strcmp(versionString, CLANG_ANALYZER_API_VERSION_STRING) == 0)
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return true;
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return false;
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}
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void ClangCheckerRegistry::warnIncompatible(DiagnosticsEngine *diags,
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StringRef pluginPath,
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const char *pluginAPIVersion) {
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if (!diags)
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return;
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if (!pluginAPIVersion)
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return;
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diags->Report(diag::warn_incompatible_analyzer_plugin_api)
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<< llvm::sys::path::filename(pluginPath);
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diags->Report(diag::note_incompatible_analyzer_plugin_api)
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<< CLANG_ANALYZER_API_VERSION_STRING
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<< pluginAPIVersion;
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}
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CheckerManager *ento::createCheckerManager(AnalyzerOptions &opts,
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const LangOptions &langOpts,
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ArrayRef<std::string> plugins,
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DiagnosticsEngine &diags) {
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OwningPtr<CheckerManager> checkerMgr(new CheckerManager(langOpts,
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&opts));
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SmallVector<CheckerOptInfo, 8> checkerOpts;
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for (unsigned i = 0, e = opts.CheckersControlList.size(); i != e; ++i) {
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const std::pair<std::string, bool> &opt = opts.CheckersControlList[i];
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checkerOpts.push_back(CheckerOptInfo(opt.first.c_str(), opt.second));
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}
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ClangCheckerRegistry allCheckers(plugins, &diags);
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allCheckers.initializeManager(*checkerMgr, checkerOpts);
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checkerMgr->finishedCheckerRegistration();
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for (unsigned i = 0, e = checkerOpts.size(); i != e; ++i) {
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if (checkerOpts[i].isUnclaimed())
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diags.Report(diag::err_unknown_analyzer_checker)
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<< checkerOpts[i].getName();
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}
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return checkerMgr.take();
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}
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void ento::printCheckerHelp(raw_ostream &out, ArrayRef<std::string> plugins) {
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out << "OVERVIEW: Clang Static Analyzer Checkers List\n\n";
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out << "USAGE: -analyzer-checker <CHECKER or PACKAGE,...>\n\n";
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ClangCheckerRegistry(plugins).printHelp(out);
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}
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