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