1641 lines
66 KiB
C++
1641 lines
66 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2021 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "cppcheck.h"
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#include "check.h"
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#include "checkunusedfunctions.h"
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#include "clangimport.h"
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#include "ctu.h"
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#include "library.h"
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#include "mathlib.h"
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#include "path.h"
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#include "platform.h"
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#include "preprocessor.h" // Preprocessor
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#include "suppressions.h"
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#include "timer.h"
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#include "tokenize.h" // Tokenizer
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#include "tokenlist.h"
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#include "version.h"
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#include "exprengine.h"
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#define PICOJSON_USE_INT64
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#include <picojson.h>
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#include <simplecpp.h>
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#include <tinyxml2.h>
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#include <algorithm>
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#include <cstring>
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#include <new>
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#include <set>
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#include <stdexcept>
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#include <vector>
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#include <memory>
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#include <iostream> // <- TEMPORARY
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#include <cstdio>
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#ifdef HAVE_RULES
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#define PCRE_STATIC
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#include <pcre.h>
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#endif
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static const char Version[] = CPPCHECK_VERSION_STRING;
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static const char ExtraVersion[] = "";
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static TimerResults s_timerResults;
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// CWE ids used
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static const CWE CWE398(398U); // Indicator of Poor Code Quality
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namespace {
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struct AddonInfo {
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std::string name;
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std::string scriptFile;
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std::string args;
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std::string python;
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static std::string getFullPath(const std::string &fileName, const std::string &exename) {
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if (Path::fileExists(fileName))
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return fileName;
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const std::string exepath = Path::getPathFromFilename(exename);
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if (Path::fileExists(exepath + fileName))
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return exepath + fileName;
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if (Path::fileExists(exepath + "addons/" + fileName))
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return exepath + "addons/" + fileName;
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#ifdef FILESDIR
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if (Path::fileExists(FILESDIR + ("/" + fileName)))
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return FILESDIR + ("/" + fileName);
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if (Path::fileExists(FILESDIR + ("/addons/" + fileName)))
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return FILESDIR + ("/addons/" + fileName);
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#endif
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return "";
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}
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std::string parseAddonInfo(const picojson::value &json, const std::string &fileName, const std::string &exename) {
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const std::string& json_error = picojson::get_last_error();
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if (!json_error.empty()) {
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return "Loading " + fileName + " failed. " + json_error;
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}
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if (!json.is<picojson::object>())
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return "Loading " + fileName + " failed. Bad json.";
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picojson::object obj = json.get<picojson::object>();
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if (obj.count("args")) {
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if (!obj["args"].is<picojson::array>())
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return "Loading " + fileName + " failed. args must be array.";
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for (const picojson::value &v : obj["args"].get<picojson::array>())
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args += " " + v.get<std::string>();
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}
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if (obj.count("python")) {
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// Python was defined in the config file
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if (obj["python"].is<picojson::array>()) {
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return "Loading " + fileName +" failed. python must not be an array.";
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}
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python = obj["python"].get<std::string>();
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} else {
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python = "";
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}
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return getAddonInfo(obj["script"].get<std::string>(), exename);
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}
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std::string getAddonInfo(const std::string &fileName, const std::string &exename) {
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if (fileName[0] == '{') {
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std::istringstream in(fileName);
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picojson::value json;
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in >> json;
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return parseAddonInfo(json, fileName, exename);
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}
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if (fileName.find(".") == std::string::npos)
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return getAddonInfo(fileName + ".py", exename);
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if (endsWith(fileName, ".py", 3)) {
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scriptFile = getFullPath(fileName, exename);
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if (scriptFile.empty())
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return "Did not find addon " + fileName;
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std::string::size_type pos1 = scriptFile.rfind("/");
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if (pos1 == std::string::npos)
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pos1 = 0;
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else
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pos1++;
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std::string::size_type pos2 = scriptFile.rfind(".");
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if (pos2 < pos1)
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pos2 = std::string::npos;
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name = scriptFile.substr(pos1, pos2 - pos1);
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return "";
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}
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if (!endsWith(fileName, ".json", 5))
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return "Failed to open addon " + fileName;
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std::ifstream fin(fileName);
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if (!fin.is_open())
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return "Failed to open " + fileName;
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picojson::value json;
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fin >> json;
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return parseAddonInfo(json, fileName, exename);
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}
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};
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}
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static std::string cmdFileName(std::string f)
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{
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f = Path::toNativeSeparators(f);
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if (f.find(" ") != std::string::npos)
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return "\"" + f + "\"";
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return f;
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}
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static std::vector<std::string> split(const std::string &str, const std::string &sep=" ")
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{
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std::vector<std::string> ret;
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for (std::string::size_type startPos = 0U; startPos < str.size();) {
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startPos = str.find_first_not_of(sep, startPos);
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if (startPos == std::string::npos)
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break;
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if (str[startPos] == '\"') {
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const std::string::size_type endPos = str.find("\"", startPos + 1);
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ret.push_back(str.substr(startPos + 1, endPos - startPos - 1));
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startPos = (endPos < str.size()) ? (endPos + 1) : endPos;
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continue;
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}
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const std::string::size_type endPos = str.find(sep, startPos + 1);
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ret.push_back(str.substr(startPos, endPos - startPos));
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startPos = endPos;
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}
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return ret;
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}
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static void createDumpFile(const Settings& settings,
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const std::string& filename,
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const std::vector<std::string>& files,
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const simplecpp::Token* rawtokens,
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std::ofstream& fdump,
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std::string& dumpFile)
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{
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if (!settings.dump && settings.addons.empty())
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return;
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if (!settings.dumpFile.empty())
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dumpFile = settings.dumpFile;
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else if (!settings.dump && !settings.buildDir.empty())
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dumpFile = AnalyzerInformation::getAnalyzerInfoFile(settings.buildDir, filename, "") + ".dump";
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else
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dumpFile = filename + ".dump";
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fdump.open(dumpFile);
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if (!fdump.is_open())
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return;
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fdump << "<?xml version=\"1.0\"?>" << std::endl;
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fdump << "<dumps>" << std::endl;
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fdump << " <platform"
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<< " name=\"" << settings.platformString() << '\"'
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<< " char_bit=\"" << settings.char_bit << '\"'
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<< " short_bit=\"" << settings.short_bit << '\"'
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<< " int_bit=\"" << settings.int_bit << '\"'
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<< " long_bit=\"" << settings.long_bit << '\"'
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<< " long_long_bit=\"" << settings.long_long_bit << '\"'
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<< " pointer_bit=\"" << (settings.sizeof_pointer * settings.char_bit) << '\"'
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<< "/>\n";
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if (rawtokens) {
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fdump << " <rawtokens>" << std::endl;
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for (unsigned int i = 0; i < files.size(); ++i)
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fdump << " <file index=\"" << i << "\" name=\"" << ErrorLogger::toxml(files[i]) << "\"/>" << std::endl;
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for (const simplecpp::Token *tok = rawtokens; tok; tok = tok->next) {
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fdump << " <tok "
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<< "fileIndex=\"" << tok->location.fileIndex << "\" "
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<< "linenr=\"" << tok->location.line << "\" "
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<< "column=\"" << tok->location.col << "\" "
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<< "str=\"" << ErrorLogger::toxml(tok->str()) << "\""
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<< "/>" << std::endl;
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}
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fdump << " </rawtokens>" << std::endl;
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}
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}
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static std::string executeAddon(const AddonInfo &addonInfo,
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const std::string &defaultPythonExe,
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const std::string &dumpFile,
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std::function<bool(std::string,std::vector<std::string>,std::string,std::string*)> executeCommand)
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{
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const std::string redirect = "2>&1";
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std::string pythonExe;
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if (!addonInfo.python.empty())
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pythonExe = cmdFileName(addonInfo.python);
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else if (!defaultPythonExe.empty())
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pythonExe = cmdFileName(defaultPythonExe);
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else {
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#ifdef _WIN32
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const char *py_exes[] = { "python3.exe", "python.exe" };
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#else
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const char *py_exes[] = { "python3", "python" };
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#endif
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for (const char* py_exe : py_exes) {
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std::string out;
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if (executeCommand(py_exe, split("--version"), redirect, &out) && out.compare(0, 7, "Python ") == 0 && std::isdigit(out[7])) {
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pythonExe = py_exe;
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break;
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}
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}
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if (pythonExe.empty())
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throw InternalError(nullptr, "Failed to auto detect python");
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}
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const std::string args = cmdFileName(addonInfo.scriptFile) + " --cli" + addonInfo.args + " " + cmdFileName(dumpFile);
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std::string result;
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if (!executeCommand(pythonExe, split(args), redirect, &result))
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throw InternalError(nullptr, "Failed to execute addon (command: '" + pythonExe + " " + args + "')");
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// Validate output..
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std::istringstream istr(result);
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std::string line;
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while (std::getline(istr, line)) {
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if (line.compare(0,9,"Checking ", 0, 9) != 0 && !line.empty() && line[0] != '{')
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throw InternalError(nullptr, "Failed to execute '" + pythonExe + " " + args + "'. " + result);
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}
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// Valid results
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return result;
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}
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static std::string getDefinesFlags(const std::string &semicolonSeparatedString)
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{
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std::string flags;
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for (const std::string &d: split(semicolonSeparatedString, ";"))
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flags += "-D" + d + " ";
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return flags;
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}
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CppCheck::CppCheck(ErrorLogger &errorLogger,
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bool useGlobalSuppressions,
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std::function<bool(std::string,std::vector<std::string>,std::string,std::string*)> executeCommand)
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: mErrorLogger(errorLogger)
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, mExitCode(0)
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, mSuppressInternalErrorFound(false)
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, mUseGlobalSuppressions(useGlobalSuppressions)
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, mTooManyConfigs(false)
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, mSimplify(true)
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, mExecuteCommand(executeCommand)
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{
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}
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CppCheck::~CppCheck()
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{
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while (!mFileInfo.empty()) {
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delete mFileInfo.back();
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mFileInfo.pop_back();
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}
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s_timerResults.showResults(mSettings.showtime);
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}
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const char * CppCheck::version()
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{
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return Version;
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}
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const char * CppCheck::extraVersion()
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{
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return ExtraVersion;
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}
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static bool reportClangErrors(std::istream &is, std::function<void(const ErrorMessage&)> reportErr)
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{
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std::string line;
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while (std::getline(is, line)) {
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if (line.empty() || line[0] == ' ' || line[0] == '`' || line[0] == '-')
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continue;
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std::string::size_type pos3 = line.find(": error: ");
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if (pos3 == std::string::npos)
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pos3 = line.find(": fatal error:");
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if (pos3 == std::string::npos)
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continue;
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// file:line:column: error: ....
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const std::string::size_type pos2 = line.rfind(":", pos3 - 1);
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const std::string::size_type pos1 = line.rfind(":", pos2 - 1);
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if (pos1 >= pos2 || pos2 >= pos3)
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continue;
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const std::string filename = line.substr(0, pos1);
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const std::string linenr = line.substr(pos1+1, pos2-pos1-1);
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const std::string colnr = line.substr(pos2+1, pos3-pos2-1);
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const std::string msg = line.substr(line.find(":", pos3+1) + 2);
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std::list<ErrorMessage::FileLocation> locationList;
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ErrorMessage::FileLocation loc;
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loc.setfile(Path::toNativeSeparators(filename));
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loc.line = std::atoi(linenr.c_str());
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loc.column = std::atoi(colnr.c_str());
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locationList.push_back(loc);
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ErrorMessage errmsg(locationList,
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loc.getfile(),
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Severity::error,
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msg,
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"syntaxError",
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Certainty::normal);
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reportErr(errmsg);
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return true;
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}
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return false;
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}
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unsigned int CppCheck::check(const std::string &path)
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{
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if (mSettings.clang) {
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if (!mSettings.quiet)
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mErrorLogger.reportOut(std::string("Checking ") + path + "...");
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const std::string lang = Path::isCPP(path) ? "-x c++" : "-x c";
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const std::string analyzerInfo = mSettings.buildDir.empty() ? std::string() : AnalyzerInformation::getAnalyzerInfoFile(mSettings.buildDir, path, "");
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const std::string clangcmd = analyzerInfo + ".clang-cmd";
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const std::string clangStderr = analyzerInfo + ".clang-stderr";
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const std::string clangAst = analyzerInfo + ".clang-ast";
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std::string exe = mSettings.clangExecutable;
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#ifdef _WIN32
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// append .exe if it is not a path
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if (Path::fromNativeSeparators(mSettings.clangExecutable).find('/') == std::string::npos) {
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exe += ".exe";
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}
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#endif
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std::string flags(lang + " ");
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if (Path::isCPP(path) && !mSettings.standards.stdValue.empty())
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flags += "-std=" + mSettings.standards.stdValue + " ";
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for (const std::string &i: mSettings.includePaths)
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flags += "-I" + i + " ";
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flags += getDefinesFlags(mSettings.userDefines);
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const std::string args2 = "-fsyntax-only -Xclang -ast-dump -fno-color-diagnostics " + flags + path;
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const std::string redirect2 = analyzerInfo.empty() ? std::string("2>&1") : ("2> " + clangStderr);
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if (!mSettings.buildDir.empty()) {
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std::ofstream fout(clangcmd);
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fout << exe << " " << args2 << " " << redirect2 << std::endl;
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} else if (mSettings.verbose && !mSettings.quiet) {
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mErrorLogger.reportOut(exe + " " + args2);
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}
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std::string output2;
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if (!mExecuteCommand(exe,split(args2),redirect2,&output2) || output2.find("TranslationUnitDecl") == std::string::npos) {
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std::cerr << "Failed to execute '" << exe << " " << args2 << " " << redirect2 << "'" << std::endl;
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return 0;
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}
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// Ensure there are not syntax errors...
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if (!mSettings.buildDir.empty()) {
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std::ifstream fin(clangStderr);
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auto reportError = [this](const ErrorMessage& errorMessage) {
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reportErr(errorMessage);
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};
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if (reportClangErrors(fin, reportError))
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return 0;
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} else {
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std::istringstream istr(output2);
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auto reportError = [this](const ErrorMessage& errorMessage) {
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reportErr(errorMessage);
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};
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if (reportClangErrors(istr, reportError))
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return 0;
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}
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if (!mSettings.buildDir.empty()) {
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std::ofstream fout(clangAst);
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fout << output2 << std::endl;
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}
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try {
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std::istringstream ast(output2);
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Tokenizer tokenizer(&mSettings, this);
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tokenizer.list.appendFileIfNew(path);
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clangimport::parseClangAstDump(&tokenizer, ast);
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ValueFlow::setValues(&tokenizer.list, const_cast<SymbolDatabase *>(tokenizer.getSymbolDatabase()), this, &mSettings);
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if (mSettings.debugnormal)
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tokenizer.printDebugOutput(1);
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checkNormalTokens(tokenizer);
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// create dumpfile
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std::ofstream fdump;
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std::string dumpFile;
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createDumpFile(mSettings, path, tokenizer.list.getFiles(), nullptr, fdump, dumpFile);
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if (fdump.is_open()) {
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fdump << "<dump cfg=\"\">" << std::endl;
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fdump << " <standards>" << std::endl;
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fdump << " <c version=\"" << mSettings.standards.getC() << "\"/>" << std::endl;
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fdump << " <cpp version=\"" << mSettings.standards.getCPP() << "\"/>" << std::endl;
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fdump << " </standards>" << std::endl;
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tokenizer.dump(fdump);
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fdump << "</dump>" << std::endl;
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fdump << "</dumps>" << std::endl;
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fdump.close();
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}
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// run addons
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executeAddons(dumpFile);
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} catch (const InternalError &e) {
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internalError(path, e.errorMessage);
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mExitCode = 1; // e.g. reflect a syntax error
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} catch (const std::exception &e) {
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internalError(path, e.what());
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}
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return mExitCode;
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}
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std::ifstream fin(path);
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return checkFile(Path::simplifyPath(path), emptyString, fin);
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}
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unsigned int CppCheck::check(const std::string &path, const std::string &content)
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{
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std::istringstream iss(content);
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return checkFile(Path::simplifyPath(path), emptyString, iss);
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}
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unsigned int CppCheck::check(const ImportProject::FileSettings &fs)
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{
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CppCheck temp(mErrorLogger, mUseGlobalSuppressions, mExecuteCommand);
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|
temp.mSettings = mSettings;
|
|
if (!temp.mSettings.userDefines.empty())
|
|
temp.mSettings.userDefines += ';';
|
|
if (mSettings.clang)
|
|
temp.mSettings.userDefines += fs.defines;
|
|
else
|
|
temp.mSettings.userDefines += fs.cppcheckDefines();
|
|
temp.mSettings.includePaths = fs.includePaths;
|
|
temp.mSettings.userUndefs.insert(fs.undefs.cbegin(), fs.undefs.cend());
|
|
if (fs.standard.find("++") != std::string::npos)
|
|
temp.mSettings.standards.setCPP(fs.standard);
|
|
else if (!fs.standard.empty())
|
|
temp.mSettings.standards.setC(fs.standard);
|
|
if (fs.platformType != Settings::Unspecified)
|
|
temp.mSettings.platform(fs.platformType);
|
|
if (mSettings.clang) {
|
|
temp.mSettings.includePaths.insert(temp.mSettings.includePaths.end(), fs.systemIncludePaths.cbegin(), fs.systemIncludePaths.cend());
|
|
return temp.check(Path::simplifyPath(fs.filename));
|
|
}
|
|
std::ifstream fin(fs.filename);
|
|
unsigned int returnValue = temp.checkFile(Path::simplifyPath(fs.filename), fs.cfg, fin);
|
|
mSettings.nomsg.addSuppressions(temp.mSettings.nomsg.getSuppressions());
|
|
return returnValue;
|
|
}
|
|
|
|
unsigned int CppCheck::checkFile(const std::string& filename, const std::string &cfgname, std::istream& fileStream)
|
|
{
|
|
mExitCode = 0;
|
|
mSuppressInternalErrorFound = false;
|
|
|
|
// only show debug warnings for accepted C/C++ source files
|
|
if (!Path::acceptFile(filename))
|
|
mSettings.debugwarnings = false;
|
|
|
|
if (Settings::terminated())
|
|
return mExitCode;
|
|
|
|
if (!mSettings.quiet) {
|
|
std::string fixedpath = Path::simplifyPath(filename);
|
|
fixedpath = Path::toNativeSeparators(fixedpath);
|
|
mErrorLogger.reportOut(std::string("Checking ") + fixedpath + ' ' + cfgname + std::string("..."));
|
|
|
|
if (mSettings.verbose) {
|
|
mErrorLogger.reportOut("Defines:" + mSettings.userDefines);
|
|
std::string undefs;
|
|
for (const std::string& U : mSettings.userUndefs) {
|
|
if (!undefs.empty())
|
|
undefs += ';';
|
|
undefs += ' ' + U;
|
|
}
|
|
mErrorLogger.reportOut("Undefines:" + undefs);
|
|
std::string includePaths;
|
|
for (const std::string &I : mSettings.includePaths)
|
|
includePaths += " -I" + I;
|
|
mErrorLogger.reportOut("Includes:" + includePaths);
|
|
mErrorLogger.reportOut(std::string("Platform:") + mSettings.platformString());
|
|
}
|
|
}
|
|
|
|
if (plistFile.is_open()) {
|
|
plistFile << ErrorLogger::plistFooter();
|
|
plistFile.close();
|
|
}
|
|
|
|
CheckUnusedFunctions checkUnusedFunctions(nullptr, nullptr, nullptr);
|
|
|
|
try {
|
|
Preprocessor preprocessor(mSettings, this);
|
|
std::set<std::string> configurations;
|
|
|
|
simplecpp::OutputList outputList;
|
|
std::vector<std::string> files;
|
|
simplecpp::TokenList tokens1(fileStream, files, filename, &outputList);
|
|
|
|
// If there is a syntax error, report it and stop
|
|
for (const simplecpp::Output &output : outputList) {
|
|
bool err;
|
|
switch (output.type) {
|
|
case simplecpp::Output::ERROR:
|
|
case simplecpp::Output::INCLUDE_NESTED_TOO_DEEPLY:
|
|
case simplecpp::Output::SYNTAX_ERROR:
|
|
case simplecpp::Output::UNHANDLED_CHAR_ERROR:
|
|
case simplecpp::Output::EXPLICIT_INCLUDE_NOT_FOUND:
|
|
err = true;
|
|
break;
|
|
case simplecpp::Output::WARNING:
|
|
case simplecpp::Output::MISSING_HEADER:
|
|
case simplecpp::Output::PORTABILITY_BACKSLASH:
|
|
err = false;
|
|
break;
|
|
}
|
|
|
|
if (err) {
|
|
std::string file = Path::fromNativeSeparators(output.location.file());
|
|
if (mSettings.relativePaths)
|
|
file = Path::getRelativePath(file, mSettings.basePaths);
|
|
|
|
const ErrorMessage::FileLocation loc1(file, output.location.line, output.location.col);
|
|
std::list<ErrorMessage::FileLocation> callstack(1, loc1);
|
|
|
|
ErrorMessage errmsg(callstack,
|
|
"",
|
|
Severity::error,
|
|
output.msg,
|
|
"syntaxError",
|
|
Certainty::normal);
|
|
reportErr(errmsg);
|
|
return mExitCode;
|
|
}
|
|
}
|
|
|
|
if (!preprocessor.loadFiles(tokens1, files))
|
|
return mExitCode;
|
|
|
|
if (!mSettings.plistOutput.empty()) {
|
|
std::string filename2;
|
|
if (filename.find('/') != std::string::npos)
|
|
filename2 = filename.substr(filename.rfind('/') + 1);
|
|
else
|
|
filename2 = filename;
|
|
std::size_t fileNameHash = std::hash<std::string> {}(filename);
|
|
filename2 = mSettings.plistOutput + filename2.substr(0, filename2.find('.')) + "_" + std::to_string(fileNameHash) + ".plist";
|
|
plistFile.open(filename2);
|
|
plistFile << ErrorLogger::plistHeader(version(), files);
|
|
}
|
|
|
|
// write dump file xml prolog
|
|
std::ofstream fdump;
|
|
std::string dumpFile;
|
|
createDumpFile(mSettings, filename, files, tokens1.cfront(), fdump, dumpFile);
|
|
|
|
// Parse comments and then remove them
|
|
preprocessor.inlineSuppressions(tokens1);
|
|
if ((mSettings.dump || !mSettings.addons.empty()) && fdump.is_open()) {
|
|
mSettings.nomsg.dump(fdump);
|
|
}
|
|
tokens1.removeComments();
|
|
preprocessor.removeComments();
|
|
|
|
if (!mSettings.buildDir.empty()) {
|
|
// Get toolinfo
|
|
std::ostringstream toolinfo;
|
|
toolinfo << CPPCHECK_VERSION_STRING;
|
|
toolinfo << (mSettings.severity.isEnabled(Severity::warning) ? 'w' : ' ');
|
|
toolinfo << (mSettings.severity.isEnabled(Severity::style) ? 's' : ' ');
|
|
toolinfo << (mSettings.severity.isEnabled(Severity::performance) ? 'p' : ' ');
|
|
toolinfo << (mSettings.severity.isEnabled(Severity::portability) ? 'p' : ' ');
|
|
toolinfo << (mSettings.severity.isEnabled(Severity::information) ? 'i' : ' ');
|
|
toolinfo << mSettings.userDefines;
|
|
mSettings.nomsg.dump(toolinfo);
|
|
|
|
// Calculate checksum so it can be compared with old checksum / future checksums
|
|
const unsigned int checksum = preprocessor.calculateChecksum(tokens1, toolinfo.str());
|
|
std::list<ErrorMessage> errors;
|
|
if (!mAnalyzerInformation.analyzeFile(mSettings.buildDir, filename, cfgname, checksum, &errors)) {
|
|
while (!errors.empty()) {
|
|
reportErr(errors.front());
|
|
errors.pop_front();
|
|
}
|
|
return mExitCode; // known results => no need to reanalyze file
|
|
}
|
|
}
|
|
|
|
// Get directives
|
|
preprocessor.setDirectives(tokens1);
|
|
preprocessor.simplifyPragmaAsm(&tokens1);
|
|
|
|
preprocessor.setPlatformInfo(&tokens1);
|
|
|
|
// Get configurations..
|
|
if ((mSettings.checkAllConfigurations && mSettings.userDefines.empty()) || mSettings.force) {
|
|
Timer t("Preprocessor::getConfigs", mSettings.showtime, &s_timerResults);
|
|
configurations = preprocessor.getConfigs(tokens1);
|
|
} else {
|
|
configurations.insert(mSettings.userDefines);
|
|
}
|
|
|
|
if (mSettings.checkConfiguration) {
|
|
for (const std::string &config : configurations)
|
|
(void)preprocessor.getcode(tokens1, config, files, true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Run define rules on raw code
|
|
for (const Settings::Rule &rule : mSettings.rules) {
|
|
if (rule.tokenlist != "define")
|
|
continue;
|
|
|
|
std::string code;
|
|
const std::list<Directive> &directives = preprocessor.getDirectives();
|
|
for (const Directive &dir : directives) {
|
|
if (dir.str.compare(0,8,"#define ") == 0)
|
|
code += "#line " + MathLib::toString(dir.linenr) + " \"" + dir.file + "\"\n" + dir.str + '\n';
|
|
}
|
|
Tokenizer tokenizer2(&mSettings, this);
|
|
std::istringstream istr2(code);
|
|
tokenizer2.list.createTokens(istr2);
|
|
executeRules("define", tokenizer2);
|
|
break;
|
|
}
|
|
|
|
if (!mSettings.force && configurations.size() > mSettings.maxConfigs) {
|
|
if (mSettings.severity.isEnabled(Severity::information)) {
|
|
tooManyConfigsError(Path::toNativeSeparators(filename),configurations.size());
|
|
} else {
|
|
mTooManyConfigs = true;
|
|
}
|
|
}
|
|
|
|
std::set<unsigned long long> checksums;
|
|
int checkCount = 0;
|
|
bool hasValidConfig = false;
|
|
std::list<std::string> configurationError;
|
|
for (const std::string &currCfg : configurations) {
|
|
// bail out if terminated
|
|
if (Settings::terminated())
|
|
break;
|
|
|
|
// Check only a few configurations (default 12), after that bail out, unless --force
|
|
// was used.
|
|
if (!mSettings.force && ++checkCount > mSettings.maxConfigs)
|
|
break;
|
|
|
|
if (!mSettings.userDefines.empty()) {
|
|
mCurrentConfig = mSettings.userDefines;
|
|
const std::vector<std::string> v1(split(mSettings.userDefines, ";"));
|
|
for (const std::string &cfg: split(currCfg, ";")) {
|
|
if (std::find(v1.begin(), v1.end(), cfg) == v1.end()) {
|
|
mCurrentConfig += ";" + cfg;
|
|
}
|
|
}
|
|
} else {
|
|
mCurrentConfig = currCfg;
|
|
}
|
|
|
|
if (mSettings.preprocessOnly) {
|
|
Timer t("Preprocessor::getcode", mSettings.showtime, &s_timerResults);
|
|
std::string codeWithoutCfg = preprocessor.getcode(tokens1, mCurrentConfig, files, true);
|
|
t.stop();
|
|
|
|
if (codeWithoutCfg.compare(0,5,"#file") == 0)
|
|
codeWithoutCfg.insert(0U, "//");
|
|
std::string::size_type pos = 0;
|
|
while ((pos = codeWithoutCfg.find("\n#file",pos)) != std::string::npos)
|
|
codeWithoutCfg.insert(pos+1U, "//");
|
|
pos = 0;
|
|
while ((pos = codeWithoutCfg.find("\n#endfile",pos)) != std::string::npos)
|
|
codeWithoutCfg.insert(pos+1U, "//");
|
|
pos = 0;
|
|
while ((pos = codeWithoutCfg.find(Preprocessor::macroChar,pos)) != std::string::npos)
|
|
codeWithoutCfg[pos] = ' ';
|
|
reportOut(codeWithoutCfg);
|
|
continue;
|
|
}
|
|
|
|
Tokenizer tokenizer(&mSettings, this);
|
|
tokenizer.setPreprocessor(&preprocessor);
|
|
if (mSettings.showtime != SHOWTIME_MODES::SHOWTIME_NONE)
|
|
tokenizer.setTimerResults(&s_timerResults);
|
|
|
|
try {
|
|
// Create tokens, skip rest of iteration if failed
|
|
{
|
|
Timer timer("Tokenizer::createTokens", mSettings.showtime, &s_timerResults);
|
|
simplecpp::TokenList tokensP = preprocessor.preprocess(tokens1, mCurrentConfig, files, true);
|
|
tokenizer.createTokens(std::move(tokensP));
|
|
}
|
|
hasValidConfig = true;
|
|
|
|
// If only errors are printed, print filename after the check
|
|
if (!mSettings.quiet && (!mCurrentConfig.empty() || checkCount > 1)) {
|
|
std::string fixedpath = Path::simplifyPath(filename);
|
|
fixedpath = Path::toNativeSeparators(fixedpath);
|
|
mErrorLogger.reportOut("Checking " + fixedpath + ": " + mCurrentConfig + "...");
|
|
}
|
|
|
|
if (!tokenizer.tokens())
|
|
continue;
|
|
|
|
// skip rest of iteration if just checking configuration
|
|
if (mSettings.checkConfiguration)
|
|
continue;
|
|
|
|
// Check raw tokens
|
|
checkRawTokens(tokenizer);
|
|
|
|
// Simplify tokens into normal form, skip rest of iteration if failed
|
|
Timer timer2("Tokenizer::simplifyTokens1", mSettings.showtime, &s_timerResults);
|
|
bool result = tokenizer.simplifyTokens1(mCurrentConfig);
|
|
timer2.stop();
|
|
if (!result)
|
|
continue;
|
|
|
|
// dump xml if --dump
|
|
if ((mSettings.dump || !mSettings.addons.empty()) && fdump.is_open()) {
|
|
fdump << "<dump cfg=\"" << ErrorLogger::toxml(mCurrentConfig) << "\">" << std::endl;
|
|
fdump << " <standards>" << std::endl;
|
|
fdump << " <c version=\"" << mSettings.standards.getC() << "\"/>" << std::endl;
|
|
fdump << " <cpp version=\"" << mSettings.standards.getCPP() << "\"/>" << std::endl;
|
|
fdump << " </standards>" << std::endl;
|
|
preprocessor.dump(fdump);
|
|
tokenizer.dump(fdump);
|
|
fdump << "</dump>" << std::endl;
|
|
}
|
|
|
|
// Skip if we already met the same simplified token list
|
|
if (mSettings.force || mSettings.maxConfigs > 1) {
|
|
const unsigned long long checksum = tokenizer.list.calculateChecksum();
|
|
if (checksums.find(checksum) != checksums.end()) {
|
|
if (mSettings.debugwarnings)
|
|
purgedConfigurationMessage(filename, mCurrentConfig);
|
|
continue;
|
|
}
|
|
checksums.insert(checksum);
|
|
}
|
|
|
|
// Check normal tokens
|
|
checkNormalTokens(tokenizer);
|
|
|
|
// Analyze info..
|
|
if (!mSettings.buildDir.empty())
|
|
checkUnusedFunctions.parseTokens(tokenizer, filename.c_str(), &mSettings);
|
|
|
|
// simplify more if required, skip rest of iteration if failed
|
|
if (mSimplify && hasRule("simple")) {
|
|
std::cout << "Handling of \"simple\" rules is deprecated and will be removed in Cppcheck 2.5." << std::endl;
|
|
|
|
// if further simplification fails then skip rest of iteration
|
|
Timer timer3("Tokenizer::simplifyTokenList2", mSettings.showtime, &s_timerResults);
|
|
result = tokenizer.simplifyTokenList2();
|
|
timer3.stop();
|
|
if (!result)
|
|
continue;
|
|
|
|
if (!Settings::terminated())
|
|
executeRules("simple", tokenizer);
|
|
}
|
|
|
|
} catch (const simplecpp::Output &o) {
|
|
// #error etc during preprocessing
|
|
configurationError.push_back((mCurrentConfig.empty() ? "\'\'" : mCurrentConfig) + " : [" + o.location.file() + ':' + MathLib::toString(o.location.line) + "] " + o.msg);
|
|
--checkCount; // don't count invalid configurations
|
|
continue;
|
|
|
|
} catch (const InternalError &e) {
|
|
std::list<ErrorMessage::FileLocation> locationList;
|
|
if (e.token) {
|
|
ErrorMessage::FileLocation loc(e.token, &tokenizer.list);
|
|
locationList.push_back(loc);
|
|
} else {
|
|
ErrorMessage::FileLocation loc(tokenizer.list.getSourceFilePath(), 0, 0);
|
|
ErrorMessage::FileLocation loc2(filename, 0, 0);
|
|
locationList.push_back(loc2);
|
|
if (filename != tokenizer.list.getSourceFilePath())
|
|
locationList.push_back(loc);
|
|
}
|
|
ErrorMessage errmsg(locationList,
|
|
tokenizer.list.getSourceFilePath(),
|
|
Severity::error,
|
|
e.errorMessage,
|
|
e.id,
|
|
Certainty::normal);
|
|
|
|
if (errmsg.severity == Severity::error || mSettings.severity.isEnabled(errmsg.severity))
|
|
reportErr(errmsg);
|
|
}
|
|
}
|
|
|
|
if (!hasValidConfig && configurations.size() > 1 && mSettings.severity.isEnabled(Severity::information)) {
|
|
std::string msg;
|
|
msg = "This file is not analyzed. Cppcheck failed to extract a valid configuration. Use -v for more details.";
|
|
msg += "\nThis file is not analyzed. Cppcheck failed to extract a valid configuration. The tested configurations have these preprocessor errors:";
|
|
for (const std::string &s : configurationError)
|
|
msg += '\n' + s;
|
|
|
|
std::list<ErrorMessage::FileLocation> locationList;
|
|
ErrorMessage::FileLocation loc;
|
|
loc.setfile(Path::toNativeSeparators(filename));
|
|
locationList.push_back(loc);
|
|
ErrorMessage errmsg(locationList,
|
|
loc.getfile(),
|
|
Severity::information,
|
|
msg,
|
|
"noValidConfiguration",
|
|
Certainty::normal);
|
|
reportErr(errmsg);
|
|
}
|
|
|
|
// dumped all configs, close root </dumps> element now
|
|
if (fdump.is_open()) {
|
|
fdump << "</dumps>" << std::endl;
|
|
fdump.close();
|
|
}
|
|
|
|
executeAddons(dumpFile);
|
|
|
|
} catch (const std::runtime_error &e) {
|
|
internalError(filename, e.what());
|
|
} catch (const std::bad_alloc &e) {
|
|
internalError(filename, e.what());
|
|
} catch (const InternalError &e) {
|
|
internalError(filename, e.errorMessage);
|
|
mExitCode=1; // e.g. reflect a syntax error
|
|
}
|
|
|
|
mAnalyzerInformation.setFileInfo("CheckUnusedFunctions", checkUnusedFunctions.analyzerInfo());
|
|
mAnalyzerInformation.close();
|
|
|
|
// In jointSuppressionReport mode, unmatched suppressions are
|
|
// collected after all files are processed
|
|
if (!mSettings.jointSuppressionReport && (mSettings.severity.isEnabled(Severity::information) || mSettings.checkConfiguration)) {
|
|
reportUnmatchedSuppressions(mSettings.nomsg.getUnmatchedLocalSuppressions(filename, isUnusedFunctionCheckEnabled()));
|
|
}
|
|
|
|
mErrorList.clear();
|
|
|
|
return mExitCode;
|
|
}
|
|
|
|
void CppCheck::internalError(const std::string &filename, const std::string &msg)
|
|
{
|
|
const std::string fixedpath = Path::toNativeSeparators(filename);
|
|
const std::string fullmsg("Bailing out from checking " + fixedpath + " since there was an internal error: " + msg);
|
|
|
|
if (mSettings.severity.isEnabled(Severity::information)) {
|
|
const ErrorMessage::FileLocation loc1(filename, 0, 0);
|
|
std::list<ErrorMessage::FileLocation> callstack(1, loc1);
|
|
|
|
ErrorMessage errmsg(callstack,
|
|
emptyString,
|
|
Severity::information,
|
|
fullmsg,
|
|
"internalError",
|
|
Certainty::normal);
|
|
|
|
mErrorLogger.reportErr(errmsg);
|
|
} else {
|
|
// Report on stdout
|
|
mErrorLogger.reportOut(fullmsg);
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
// CppCheck - A function that checks a raw token list
|
|
//---------------------------------------------------------------------------
|
|
void CppCheck::checkRawTokens(const Tokenizer &tokenizer)
|
|
{
|
|
// Execute rules for "raw" code
|
|
executeRules("raw", tokenizer);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
// CppCheck - A function that checks a normal token list
|
|
//---------------------------------------------------------------------------
|
|
|
|
void CppCheck::checkNormalTokens(const Tokenizer &tokenizer)
|
|
{
|
|
mSettings.library.bugHunting = mSettings.bugHunting;
|
|
if (mSettings.bugHunting)
|
|
ExprEngine::runChecks(this, &tokenizer, &mSettings);
|
|
else {
|
|
// call all "runChecks" in all registered Check classes
|
|
for (Check *check : Check::instances()) {
|
|
if (Settings::terminated())
|
|
return;
|
|
|
|
if (Tokenizer::isMaxTime())
|
|
return;
|
|
|
|
Timer timerRunChecks(check->name() + "::runChecks", mSettings.showtime, &s_timerResults);
|
|
check->runChecks(&tokenizer, &mSettings, this);
|
|
}
|
|
|
|
if (mSettings.clang)
|
|
// TODO: Use CTU for Clang analysis
|
|
return;
|
|
|
|
// Analyse the tokens..
|
|
|
|
CTU::FileInfo *fi1 = CTU::getFileInfo(&tokenizer);
|
|
if (fi1) {
|
|
mFileInfo.push_back(fi1);
|
|
mAnalyzerInformation.setFileInfo("ctu", fi1->toString());
|
|
}
|
|
|
|
for (const Check *check : Check::instances()) {
|
|
Check::FileInfo *fi = check->getFileInfo(&tokenizer, &mSettings);
|
|
if (fi != nullptr) {
|
|
mFileInfo.push_back(fi);
|
|
mAnalyzerInformation.setFileInfo(check->name(), fi->toString());
|
|
}
|
|
}
|
|
|
|
executeRules("normal", tokenizer);
|
|
}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
bool CppCheck::hasRule(const std::string &tokenlist) const
|
|
{
|
|
#ifdef HAVE_RULES
|
|
for (const Settings::Rule &rule : mSettings.rules) {
|
|
if (rule.tokenlist == tokenlist)
|
|
return true;
|
|
}
|
|
#else
|
|
(void)tokenlist;
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_RULES
|
|
|
|
static const char * pcreErrorCodeToString(const int pcreExecRet)
|
|
{
|
|
switch (pcreExecRet) {
|
|
case PCRE_ERROR_NULL:
|
|
return "Either code or subject was passed as NULL, or ovector was NULL "
|
|
"and ovecsize was not zero (PCRE_ERROR_NULL)";
|
|
case PCRE_ERROR_BADOPTION:
|
|
return "An unrecognized bit was set in the options argument (PCRE_ERROR_BADOPTION)";
|
|
case PCRE_ERROR_BADMAGIC:
|
|
return "PCRE stores a 4-byte \"magic number\" at the start of the compiled code, "
|
|
"to catch the case when it is passed a junk pointer and to detect when a "
|
|
"pattern that was compiled in an environment of one endianness is run in "
|
|
"an environment with the other endianness. This is the error that PCRE "
|
|
"gives when the magic number is not present (PCRE_ERROR_BADMAGIC)";
|
|
case PCRE_ERROR_UNKNOWN_NODE:
|
|
return "While running the pattern match, an unknown item was encountered in the "
|
|
"compiled pattern. This error could be caused by a bug in PCRE or by "
|
|
"overwriting of the compiled pattern (PCRE_ERROR_UNKNOWN_NODE)";
|
|
case PCRE_ERROR_NOMEMORY:
|
|
return "If a pattern contains back references, but the ovector that is passed "
|
|
"to pcre_exec() is not big enough to remember the referenced substrings, "
|
|
"PCRE gets a block of memory at the start of matching to use for this purpose. "
|
|
"If the call via pcre_malloc() fails, this error is given. The memory is "
|
|
"automatically freed at the end of matching. This error is also given if "
|
|
"pcre_stack_malloc() fails in pcre_exec(). "
|
|
"This can happen only when PCRE has been compiled with "
|
|
"--disable-stack-for-recursion (PCRE_ERROR_NOMEMORY)";
|
|
case PCRE_ERROR_NOSUBSTRING:
|
|
return "This error is used by the pcre_copy_substring(), pcre_get_substring(), "
|
|
"and pcre_get_substring_list() functions (see below). "
|
|
"It is never returned by pcre_exec() (PCRE_ERROR_NOSUBSTRING)";
|
|
case PCRE_ERROR_MATCHLIMIT:
|
|
return "The backtracking limit, as specified by the match_limit field in a pcre_extra "
|
|
"structure (or defaulted) was reached. "
|
|
"See the description above (PCRE_ERROR_MATCHLIMIT)";
|
|
case PCRE_ERROR_CALLOUT:
|
|
return "This error is never generated by pcre_exec() itself. "
|
|
"It is provided for use by callout functions that want to yield a distinctive "
|
|
"error code. See the pcrecallout documentation for details (PCRE_ERROR_CALLOUT)";
|
|
case PCRE_ERROR_BADUTF8:
|
|
return "A string that contains an invalid UTF-8 byte sequence was passed as a subject, "
|
|
"and the PCRE_NO_UTF8_CHECK option was not set. If the size of the output vector "
|
|
"(ovecsize) is at least 2, the byte offset to the start of the the invalid UTF-8 "
|
|
"character is placed in the first element, and a reason code is placed in the "
|
|
"second element. The reason codes are listed in the following section. For "
|
|
"backward compatibility, if PCRE_PARTIAL_HARD is set and the problem is a truncated "
|
|
"UTF-8 character at the end of the subject (reason codes 1 to 5), "
|
|
"PCRE_ERROR_SHORTUTF8 is returned instead of PCRE_ERROR_BADUTF8";
|
|
case PCRE_ERROR_BADUTF8_OFFSET:
|
|
return "The UTF-8 byte sequence that was passed as a subject was checked and found to "
|
|
"be valid (the PCRE_NO_UTF8_CHECK option was not set), but the value of "
|
|
"startoffset did not point to the beginning of a UTF-8 character or the end of "
|
|
"the subject (PCRE_ERROR_BADUTF8_OFFSET)";
|
|
case PCRE_ERROR_PARTIAL:
|
|
return "The subject string did not match, but it did match partially. See the "
|
|
"pcrepartial documentation for details of partial matching (PCRE_ERROR_PARTIAL)";
|
|
case PCRE_ERROR_BADPARTIAL:
|
|
return "This code is no longer in use. It was formerly returned when the PCRE_PARTIAL "
|
|
"option was used with a compiled pattern containing items that were not supported "
|
|
"for partial matching. From release 8.00 onwards, there are no restrictions on "
|
|
"partial matching (PCRE_ERROR_BADPARTIAL)";
|
|
case PCRE_ERROR_INTERNAL:
|
|
return "An unexpected internal error has occurred. This error could be caused by a bug "
|
|
"in PCRE or by overwriting of the compiled pattern (PCRE_ERROR_INTERNAL)";
|
|
case PCRE_ERROR_BADCOUNT:
|
|
return"This error is given if the value of the ovecsize argument is negative "
|
|
"(PCRE_ERROR_BADCOUNT)";
|
|
case PCRE_ERROR_RECURSIONLIMIT :
|
|
return "The internal recursion limit, as specified by the match_limit_recursion "
|
|
"field in a pcre_extra structure (or defaulted) was reached. "
|
|
"See the description above (PCRE_ERROR_RECURSIONLIMIT)";
|
|
case PCRE_ERROR_DFA_UITEM:
|
|
return "PCRE_ERROR_DFA_UITEM";
|
|
case PCRE_ERROR_DFA_UCOND:
|
|
return "PCRE_ERROR_DFA_UCOND";
|
|
case PCRE_ERROR_DFA_WSSIZE:
|
|
return "PCRE_ERROR_DFA_WSSIZE";
|
|
case PCRE_ERROR_DFA_RECURSE:
|
|
return "PCRE_ERROR_DFA_RECURSE";
|
|
case PCRE_ERROR_NULLWSLIMIT:
|
|
return "PCRE_ERROR_NULLWSLIMIT";
|
|
case PCRE_ERROR_BADNEWLINE:
|
|
return "An invalid combination of PCRE_NEWLINE_xxx options was "
|
|
"given (PCRE_ERROR_BADNEWLINE)";
|
|
case PCRE_ERROR_BADOFFSET:
|
|
return "The value of startoffset was negative or greater than the length "
|
|
"of the subject, that is, the value in length (PCRE_ERROR_BADOFFSET)";
|
|
case PCRE_ERROR_SHORTUTF8:
|
|
return "This error is returned instead of PCRE_ERROR_BADUTF8 when the subject "
|
|
"string ends with a truncated UTF-8 character and the PCRE_PARTIAL_HARD option is set. "
|
|
"Information about the failure is returned as for PCRE_ERROR_BADUTF8. "
|
|
"It is in fact sufficient to detect this case, but this special error code for "
|
|
"PCRE_PARTIAL_HARD precedes the implementation of returned information; "
|
|
"it is retained for backwards compatibility (PCRE_ERROR_SHORTUTF8)";
|
|
case PCRE_ERROR_RECURSELOOP:
|
|
return "This error is returned when pcre_exec() detects a recursion loop "
|
|
"within the pattern. Specifically, it means that either the whole pattern "
|
|
"or a subpattern has been called recursively for the second time at the same "
|
|
"position in the subject string. Some simple patterns that might do this "
|
|
"are detected and faulted at compile time, but more complicated cases, "
|
|
"in particular mutual recursions between two different subpatterns, "
|
|
"cannot be detected until run time (PCRE_ERROR_RECURSELOOP)";
|
|
case PCRE_ERROR_JIT_STACKLIMIT:
|
|
return "This error is returned when a pattern that was successfully studied "
|
|
"using a JIT compile option is being matched, but the memory available "
|
|
"for the just-in-time processing stack is not large enough. See the pcrejit "
|
|
"documentation for more details (PCRE_ERROR_JIT_STACKLIMIT)";
|
|
case PCRE_ERROR_BADMODE:
|
|
return "This error is given if a pattern that was compiled by the 8-bit library "
|
|
"is passed to a 16-bit or 32-bit library function, or vice versa (PCRE_ERROR_BADMODE)";
|
|
case PCRE_ERROR_BADENDIANNESS:
|
|
return "This error is given if a pattern that was compiled and saved is reloaded on a "
|
|
"host with different endianness. The utility function pcre_pattern_to_host_byte_order() "
|
|
"can be used to convert such a pattern so that it runs on the new host (PCRE_ERROR_BADENDIANNESS)";
|
|
case PCRE_ERROR_DFA_BADRESTART:
|
|
return "PCRE_ERROR_DFA_BADRESTART";
|
|
#if PCRE_MAJOR >= 8 && PCRE_MINOR >= 32
|
|
case PCRE_ERROR_BADLENGTH:
|
|
return "This error is given if pcre_exec() is called with a negative value for the length argument (PCRE_ERROR_BADLENGTH)";
|
|
case PCRE_ERROR_JIT_BADOPTION:
|
|
return "This error is returned when a pattern that was successfully studied using a JIT compile "
|
|
"option is being matched, but the matching mode (partial or complete match) does not correspond "
|
|
"to any JIT compilation mode. When the JIT fast path function is used, this error may be "
|
|
"also given for invalid options. See the pcrejit documentation for more details (PCRE_ERROR_JIT_BADOPTION)";
|
|
#endif
|
|
}
|
|
return "";
|
|
}
|
|
|
|
#endif // HAVE_RULES
|
|
|
|
|
|
void CppCheck::executeRules(const std::string &tokenlist, const Tokenizer &tokenizer)
|
|
{
|
|
(void)tokenlist;
|
|
(void)tokenizer;
|
|
|
|
#ifdef HAVE_RULES
|
|
// There is no rule to execute
|
|
if (!hasRule(tokenlist))
|
|
return;
|
|
|
|
// Write all tokens in a string that can be parsed by pcre
|
|
std::ostringstream ostr;
|
|
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next())
|
|
ostr << " " << tok->str();
|
|
const std::string str(ostr.str());
|
|
|
|
for (const Settings::Rule &rule : mSettings.rules) {
|
|
if (rule.pattern.empty() || rule.id.empty() || rule.severity == Severity::none || rule.tokenlist != tokenlist)
|
|
continue;
|
|
|
|
if (!mSettings.quiet) {
|
|
reportOut("Processing rule: " + rule.pattern);
|
|
}
|
|
|
|
const char *pcreCompileErrorStr = nullptr;
|
|
int erroffset = 0;
|
|
pcre * const re = pcre_compile(rule.pattern.c_str(),0,&pcreCompileErrorStr,&erroffset,nullptr);
|
|
if (!re) {
|
|
if (pcreCompileErrorStr) {
|
|
const std::string msg = "pcre_compile failed: " + std::string(pcreCompileErrorStr);
|
|
const ErrorMessage errmsg(std::list<ErrorMessage::FileLocation>(),
|
|
emptyString,
|
|
Severity::error,
|
|
msg,
|
|
"pcre_compile",
|
|
Certainty::normal);
|
|
|
|
reportErr(errmsg);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Optimize the regex, but only if PCRE_CONFIG_JIT is available
|
|
#ifdef PCRE_CONFIG_JIT
|
|
const char *pcreStudyErrorStr = nullptr;
|
|
pcre_extra * const pcreExtra = pcre_study(re, PCRE_STUDY_JIT_COMPILE, &pcreStudyErrorStr);
|
|
// pcre_study() returns NULL for both errors and when it can not optimize the regex.
|
|
// The last argument is how one checks for errors.
|
|
// It is NULL if everything works, and points to an error string otherwise.
|
|
if (pcreStudyErrorStr) {
|
|
const std::string msg = "pcre_study failed: " + std::string(pcreStudyErrorStr);
|
|
const ErrorMessage errmsg(std::list<ErrorMessage::FileLocation>(),
|
|
emptyString,
|
|
Severity::error,
|
|
msg,
|
|
"pcre_study",
|
|
Certainty::normal);
|
|
|
|
reportErr(errmsg);
|
|
// pcre_compile() worked, but pcre_study() returned an error. Free the resources allocated by pcre_compile().
|
|
pcre_free(re);
|
|
continue;
|
|
}
|
|
#else
|
|
const pcre_extra * const pcreExtra = nullptr;
|
|
#endif
|
|
|
|
int pos = 0;
|
|
int ovector[30]= {0};
|
|
while (pos < (int)str.size()) {
|
|
const int pcreExecRet = pcre_exec(re, pcreExtra, str.c_str(), (int)str.size(), pos, 0, ovector, 30);
|
|
if (pcreExecRet < 0) {
|
|
const std::string errorMessage = pcreErrorCodeToString(pcreExecRet);
|
|
if (!errorMessage.empty()) {
|
|
const ErrorMessage errmsg(std::list<ErrorMessage::FileLocation>(),
|
|
emptyString,
|
|
Severity::error,
|
|
std::string("pcre_exec failed: ") + errorMessage,
|
|
"pcre_exec",
|
|
Certainty::normal);
|
|
|
|
reportErr(errmsg);
|
|
}
|
|
break;
|
|
}
|
|
const unsigned int pos1 = (unsigned int)ovector[0];
|
|
const unsigned int pos2 = (unsigned int)ovector[1];
|
|
|
|
// jump to the end of the match for the next pcre_exec
|
|
pos = (int)pos2;
|
|
|
|
// determine location..
|
|
ErrorMessage::FileLocation loc;
|
|
loc.setfile(tokenizer.list.getSourceFilePath());
|
|
loc.line = 0;
|
|
|
|
std::size_t len = 0;
|
|
for (const Token *tok = tokenizer.tokens(); tok; tok = tok->next()) {
|
|
len = len + 1U + tok->str().size();
|
|
if (len > pos1) {
|
|
loc.setfile(tokenizer.list.getFiles().at(tok->fileIndex()));
|
|
loc.line = tok->linenr();
|
|
break;
|
|
}
|
|
}
|
|
|
|
const std::list<ErrorMessage::FileLocation> callStack(1, loc);
|
|
|
|
// Create error message
|
|
std::string summary;
|
|
if (rule.summary.empty())
|
|
summary = "found '" + str.substr(pos1, pos2 - pos1) + "'";
|
|
else
|
|
summary = rule.summary;
|
|
const ErrorMessage errmsg(callStack, tokenizer.list.getSourceFilePath(), rule.severity, summary, rule.id, Certainty::normal);
|
|
|
|
// Report error
|
|
reportErr(errmsg);
|
|
}
|
|
|
|
pcre_free(re);
|
|
#ifdef PCRE_CONFIG_JIT
|
|
// Free up the EXTRA PCRE value (may be NULL at this point)
|
|
if (pcreExtra) {
|
|
pcre_free_study(pcreExtra);
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void CppCheck::executeAddons(const std::string& dumpFile)
|
|
{
|
|
|
|
if (!mSettings.addons.empty() && !dumpFile.empty()) {
|
|
for (const std::string &addon : mSettings.addons) {
|
|
struct AddonInfo addonInfo;
|
|
const std::string &failedToGetAddonInfo = addonInfo.getAddonInfo(addon, mSettings.exename);
|
|
if (!failedToGetAddonInfo.empty()) {
|
|
reportOut(failedToGetAddonInfo);
|
|
mExitCode = 1;
|
|
continue;
|
|
}
|
|
const std::string results =
|
|
executeAddon(addonInfo, mSettings.addonPython, dumpFile, mExecuteCommand);
|
|
std::istringstream istr(results);
|
|
std::string line;
|
|
|
|
while (std::getline(istr, line)) {
|
|
if (line.compare(0,1,"{") != 0)
|
|
continue;
|
|
|
|
picojson::value res;
|
|
std::istringstream istr2(line);
|
|
istr2 >> res;
|
|
if (!res.is<picojson::object>())
|
|
continue;
|
|
|
|
picojson::object obj = res.get<picojson::object>();
|
|
|
|
const std::string fileName = obj["file"].get<std::string>();
|
|
const int64_t lineNumber = obj["linenr"].get<int64_t>();
|
|
const int64_t column = obj["column"].get<int64_t>();
|
|
|
|
ErrorMessage errmsg;
|
|
|
|
errmsg.callStack.emplace_back(ErrorMessage::FileLocation(fileName, lineNumber, column));
|
|
|
|
errmsg.id = obj["addon"].get<std::string>() + "-" + obj["errorId"].get<std::string>();
|
|
const std::string text = obj["message"].get<std::string>();
|
|
errmsg.setmsg(text);
|
|
const std::string severity = obj["severity"].get<std::string>();
|
|
errmsg.severity = Severity::fromString(severity);
|
|
if (errmsg.severity == Severity::SeverityType::none)
|
|
continue;
|
|
errmsg.file0 = fileName;
|
|
|
|
reportErr(errmsg);
|
|
}
|
|
}
|
|
std::remove(dumpFile.c_str());
|
|
}
|
|
|
|
}
|
|
|
|
Settings &CppCheck::settings()
|
|
{
|
|
return mSettings;
|
|
}
|
|
|
|
void CppCheck::tooManyConfigsError(const std::string &file, const int numberOfConfigurations)
|
|
{
|
|
if (!mSettings.severity.isEnabled(Severity::information) && !mTooManyConfigs)
|
|
return;
|
|
|
|
mTooManyConfigs = false;
|
|
|
|
if (mSettings.severity.isEnabled(Severity::information) && file.empty())
|
|
return;
|
|
|
|
std::list<ErrorMessage::FileLocation> loclist;
|
|
if (!file.empty()) {
|
|
ErrorMessage::FileLocation location;
|
|
location.setfile(file);
|
|
loclist.push_back(location);
|
|
}
|
|
|
|
std::ostringstream msg;
|
|
msg << "Too many #ifdef configurations - cppcheck only checks " << mSettings.maxConfigs;
|
|
if (numberOfConfigurations > mSettings.maxConfigs)
|
|
msg << " of " << numberOfConfigurations << " configurations. Use --force to check all configurations.\n";
|
|
if (file.empty())
|
|
msg << " configurations. Use --force to check all configurations. For more details, use --enable=information.\n";
|
|
msg << "The checking of the file will be interrupted because there are too many "
|
|
"#ifdef configurations. Checking of all #ifdef configurations can be forced "
|
|
"by --force command line option or from GUI preferences. However that may "
|
|
"increase the checking time.";
|
|
if (file.empty())
|
|
msg << " For more details, use --enable=information.";
|
|
|
|
|
|
ErrorMessage errmsg(loclist,
|
|
emptyString,
|
|
Severity::information,
|
|
msg.str(),
|
|
"toomanyconfigs", CWE398,
|
|
Certainty::normal);
|
|
|
|
reportErr(errmsg);
|
|
}
|
|
|
|
void CppCheck::purgedConfigurationMessage(const std::string &file, const std::string& configuration)
|
|
{
|
|
mTooManyConfigs = false;
|
|
|
|
if (mSettings.severity.isEnabled(Severity::information) && file.empty())
|
|
return;
|
|
|
|
std::list<ErrorMessage::FileLocation> loclist;
|
|
if (!file.empty()) {
|
|
ErrorMessage::FileLocation location;
|
|
location.setfile(file);
|
|
loclist.push_back(location);
|
|
}
|
|
|
|
ErrorMessage errmsg(loclist,
|
|
emptyString,
|
|
Severity::information,
|
|
"The configuration '" + configuration + "' was not checked because its code equals another one.",
|
|
"purgedConfiguration",
|
|
Certainty::normal);
|
|
|
|
reportErr(errmsg);
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
|
|
void CppCheck::reportErr(const ErrorMessage &msg)
|
|
{
|
|
mSuppressInternalErrorFound = false;
|
|
|
|
if (!mSettings.library.reportErrors(msg.file0))
|
|
return;
|
|
|
|
const std::string errmsg = msg.toString(mSettings.verbose);
|
|
if (errmsg.empty())
|
|
return;
|
|
|
|
// Alert only about unique errors
|
|
if (std::find(mErrorList.begin(), mErrorList.end(), errmsg) != mErrorList.end())
|
|
return;
|
|
|
|
const Suppressions::ErrorMessage errorMessage = msg.toSuppressionsErrorMessage();
|
|
|
|
if (mUseGlobalSuppressions) {
|
|
if (mSettings.nomsg.isSuppressed(errorMessage)) {
|
|
mSuppressInternalErrorFound = true;
|
|
return;
|
|
}
|
|
} else {
|
|
if (mSettings.nomsg.isSuppressedLocal(errorMessage)) {
|
|
mSuppressInternalErrorFound = true;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!mSettings.nofail.isSuppressed(errorMessage) && !mSettings.nomsg.isSuppressed(errorMessage)) {
|
|
mExitCode = 1;
|
|
}
|
|
|
|
mErrorList.push_back(errmsg);
|
|
|
|
mErrorLogger.reportErr(msg);
|
|
mAnalyzerInformation.reportErr(msg, mSettings.verbose);
|
|
if (!mSettings.plistOutput.empty() && plistFile.is_open()) {
|
|
plistFile << ErrorLogger::plistData(msg);
|
|
}
|
|
}
|
|
|
|
void CppCheck::reportOut(const std::string &outmsg)
|
|
{
|
|
mErrorLogger.reportOut(outmsg);
|
|
}
|
|
|
|
void CppCheck::reportProgress(const std::string &filename, const char stage[], const std::size_t value)
|
|
{
|
|
mErrorLogger.reportProgress(filename, stage, value);
|
|
}
|
|
|
|
void CppCheck::reportInfo(const ErrorMessage &msg)
|
|
{
|
|
const Suppressions::ErrorMessage &errorMessage = msg.toSuppressionsErrorMessage();
|
|
if (!mSettings.nomsg.isSuppressed(errorMessage))
|
|
mErrorLogger.reportInfo(msg);
|
|
}
|
|
|
|
void CppCheck::reportStatus(unsigned int /*fileindex*/, unsigned int /*filecount*/, std::size_t /*sizedone*/, std::size_t /*sizetotal*/)
|
|
{
|
|
|
|
}
|
|
|
|
void CppCheck::bughuntingReport(const std::string &str)
|
|
{
|
|
mErrorLogger.bughuntingReport(str);
|
|
}
|
|
|
|
void CppCheck::getErrorMessages()
|
|
{
|
|
Settings s(mSettings);
|
|
s.severity.enable(Severity::warning);
|
|
s.severity.enable(Severity::style);
|
|
s.severity.enable(Severity::portability);
|
|
s.severity.enable(Severity::performance);
|
|
s.severity.enable(Severity::information);
|
|
|
|
purgedConfigurationMessage("","");
|
|
|
|
mTooManyConfigs = true;
|
|
tooManyConfigsError("",0U);
|
|
|
|
// call all "getErrorMessages" in all registered Check classes
|
|
for (std::list<Check *>::const_iterator it = Check::instances().begin(); it != Check::instances().end(); ++it)
|
|
(*it)->getErrorMessages(this, &s);
|
|
|
|
Preprocessor::getErrorMessages(this, &s);
|
|
}
|
|
|
|
void CppCheck::analyseClangTidy(const ImportProject::FileSettings &fileSettings)
|
|
{
|
|
std::string allIncludes;
|
|
for (const std::string &inc : fileSettings.includePaths) {
|
|
allIncludes = allIncludes + "-I\"" + inc + "\" ";
|
|
}
|
|
|
|
const std::string allDefines = getDefinesFlags(fileSettings.defines);
|
|
|
|
#ifdef _WIN32
|
|
const char exe[] = "clang-tidy.exe";
|
|
#else
|
|
const char exe[] = "clang-tidy";
|
|
#endif
|
|
|
|
const std::string args = "-quiet -checks=*,-clang-analyzer-*,-llvm* \"" + fileSettings.filename + "\" -- " + allIncludes + allDefines;
|
|
std::string output;
|
|
if (!mExecuteCommand(exe, split(args), "", &output)) {
|
|
std::cerr << "Failed to execute '" << exe << "'" << std::endl;
|
|
return;
|
|
}
|
|
|
|
// parse output and create error messages
|
|
std::istringstream istr(output);
|
|
std::string line;
|
|
|
|
if (!mSettings.buildDir.empty()) {
|
|
const std::string analyzerInfoFile = AnalyzerInformation::getAnalyzerInfoFile(mSettings.buildDir, fileSettings.filename, "");
|
|
std::ofstream fcmd(analyzerInfoFile + ".clang-tidy-cmd");
|
|
fcmd << istr.str();
|
|
}
|
|
|
|
while (std::getline(istr, line)) {
|
|
if (line.find("error") == std::string::npos && line.find("warning") == std::string::npos)
|
|
continue;
|
|
|
|
std::size_t endColumnPos = line.find(": error:");
|
|
if (endColumnPos == std::string::npos) {
|
|
endColumnPos = line.find(": warning:");
|
|
}
|
|
|
|
const std::size_t endLinePos = line.rfind(":", endColumnPos-1);
|
|
const std::size_t endNamePos = line.rfind(":", endLinePos - 1);
|
|
const std::size_t endMsgTypePos = line.find(':', endColumnPos + 2);
|
|
const std::size_t endErrorPos = line.rfind('[', std::string::npos);
|
|
if (endLinePos==std::string::npos || endNamePos==std::string::npos || endMsgTypePos==std::string::npos || endErrorPos==std::string::npos)
|
|
continue;
|
|
|
|
const std::string lineNumString = line.substr(endNamePos + 1, endLinePos - endNamePos - 1);
|
|
const std::string columnNumString = line.substr(endLinePos + 1, endColumnPos - endLinePos - 1);
|
|
const std::string errorTypeString = line.substr(endColumnPos + 1, endMsgTypePos - endColumnPos - 1);
|
|
const std::string messageString = line.substr(endMsgTypePos + 1, endErrorPos - endMsgTypePos - 1);
|
|
const std::string errorString = line.substr(endErrorPos, line.length());
|
|
|
|
std::string fixedpath = Path::simplifyPath(line.substr(0, endNamePos));
|
|
const int64_t lineNumber = std::atol(lineNumString.c_str());
|
|
const int64_t column = std::atol(columnNumString.c_str());
|
|
fixedpath = Path::toNativeSeparators(fixedpath);
|
|
|
|
ErrorMessage errmsg;
|
|
errmsg.callStack.emplace_back(ErrorMessage::FileLocation(fixedpath, lineNumber, column));
|
|
|
|
errmsg.id = "clang-tidy-" + errorString.substr(1, errorString.length() - 2);
|
|
if (errmsg.id.find("performance") != std::string::npos)
|
|
errmsg.severity = Severity::SeverityType::performance;
|
|
else if (errmsg.id.find("portability") != std::string::npos)
|
|
errmsg.severity = Severity::SeverityType::portability;
|
|
else if (errmsg.id.find("cert") != std::string::npos || errmsg.id.find("misc") != std::string::npos || errmsg.id.find("unused") != std::string::npos)
|
|
errmsg.severity = Severity::SeverityType::warning;
|
|
else
|
|
errmsg.severity = Severity::SeverityType::style;
|
|
|
|
errmsg.file0 = fixedpath;
|
|
errmsg.setmsg(messageString);
|
|
reportErr(errmsg);
|
|
}
|
|
}
|
|
|
|
bool CppCheck::analyseWholeProgram()
|
|
{
|
|
bool errors = false;
|
|
// Init CTU
|
|
CTU::maxCtuDepth = mSettings.maxCtuDepth;
|
|
// Analyse the tokens
|
|
CTU::FileInfo ctu;
|
|
for (const Check::FileInfo *fi : mFileInfo) {
|
|
const CTU::FileInfo *fi2 = dynamic_cast<const CTU::FileInfo *>(fi);
|
|
if (fi2) {
|
|
ctu.functionCalls.insert(ctu.functionCalls.end(), fi2->functionCalls.begin(), fi2->functionCalls.end());
|
|
ctu.nestedCalls.insert(ctu.nestedCalls.end(), fi2->nestedCalls.begin(), fi2->nestedCalls.end());
|
|
}
|
|
}
|
|
for (Check *check : Check::instances())
|
|
errors |= check->analyseWholeProgram(&ctu, mFileInfo, mSettings, *this); // TODO: ctu
|
|
return errors && (mExitCode > 0);
|
|
}
|
|
|
|
void CppCheck::analyseWholeProgram(const std::string &buildDir, const std::map<std::string, std::size_t> &files)
|
|
{
|
|
(void)files;
|
|
if (buildDir.empty())
|
|
return;
|
|
if (mSettings.checks.isEnabled(Checks::unusedFunction))
|
|
CheckUnusedFunctions::analyseWholeProgram(this, buildDir);
|
|
std::list<Check::FileInfo*> fileInfoList;
|
|
CTU::FileInfo ctuFileInfo;
|
|
|
|
// Load all analyzer info data..
|
|
const std::string filesTxt(buildDir + "/files.txt");
|
|
std::ifstream fin(filesTxt);
|
|
std::string filesTxtLine;
|
|
while (std::getline(fin, filesTxtLine)) {
|
|
const std::string::size_type firstColon = filesTxtLine.find(':');
|
|
if (firstColon == std::string::npos)
|
|
continue;
|
|
const std::string::size_type lastColon = filesTxtLine.rfind(':');
|
|
if (firstColon == lastColon)
|
|
continue;
|
|
const std::string xmlfile = buildDir + '/' + filesTxtLine.substr(0,firstColon);
|
|
//const std::string sourcefile = filesTxtLine.substr(lastColon+1);
|
|
|
|
tinyxml2::XMLDocument doc;
|
|
const tinyxml2::XMLError error = doc.LoadFile(xmlfile.c_str());
|
|
if (error != tinyxml2::XML_SUCCESS)
|
|
continue;
|
|
|
|
const tinyxml2::XMLElement * const rootNode = doc.FirstChildElement();
|
|
if (rootNode == nullptr)
|
|
continue;
|
|
|
|
for (const tinyxml2::XMLElement *e = rootNode->FirstChildElement(); e; e = e->NextSiblingElement()) {
|
|
if (std::strcmp(e->Name(), "FileInfo") != 0)
|
|
continue;
|
|
const char *checkClassAttr = e->Attribute("check");
|
|
if (!checkClassAttr)
|
|
continue;
|
|
if (std::strcmp(checkClassAttr, "ctu") == 0) {
|
|
ctuFileInfo.loadFromXml(e);
|
|
continue;
|
|
}
|
|
for (Check *check : Check::instances()) {
|
|
if (checkClassAttr == check->name())
|
|
fileInfoList.push_back(check->loadFileInfoFromXml(e));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set CTU max depth
|
|
CTU::maxCtuDepth = mSettings.maxCtuDepth;
|
|
|
|
// Analyse the tokens
|
|
for (Check *check : Check::instances())
|
|
check->analyseWholeProgram(&ctuFileInfo, fileInfoList, mSettings, *this);
|
|
|
|
for (Check::FileInfo *fi : fileInfoList)
|
|
delete fi;
|
|
}
|
|
|
|
bool CppCheck::isUnusedFunctionCheckEnabled() const
|
|
{
|
|
return (mSettings.jobs == 1 && mSettings.checks.isEnabled(Checks::unusedFunction));
|
|
}
|