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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2021 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "checkthread.h"
#include <QDebug>
#include <QDir>
#include <QFile>
#include <QProcess>
#include <QSettings>
#include "erroritem.h"
#include "threadresult.h"
#include "cppcheck.h"
#include "common.h"
static bool executeCommand(std::string exe, std::vector<std::string> args, std::string redirect, std::string *output)
{
output->clear();
QStringList args2;
for (std::string arg: args)
args2 << QString::fromStdString(arg);
QProcess process;
process.start(QString::fromStdString(exe), args2);
process.waitForFinished();
if (redirect == "2>&1") {
QString s1 = process.readAllStandardOutput();
QString s2 = process.readAllStandardError();
*output = (s1 + "\n" + s2).toStdString();
} else
*output = process.readAllStandardOutput().toStdString();
if (redirect.compare(0,3,"2> ") == 0) {
std::ofstream fout(redirect.substr(3));
fout << process.readAllStandardError().toStdString();
}
return process.exitCode() == 0;
}
CheckThread::CheckThread(ThreadResult &result) :
mState(Ready),
mResult(result),
mCppcheck(result, true, executeCommand),
mAnalyseWholeProgram(false)
{
//ctor
}
CheckThread::~CheckThread()
{
//dtor
}
void CheckThread::check(const Settings &settings)
{
mFiles.clear();
mCppcheck.settings() = settings;
start();
}
void CheckThread::analyseWholeProgram(const QStringList &files)
{
mFiles = files;
mAnalyseWholeProgram = true;
start();
}
void CheckThread::run()
{
mState = Running;
if (!mFiles.isEmpty() || mAnalyseWholeProgram) {
mAnalyseWholeProgram = false;
qDebug() << "Whole program analysis";
const std::string &buildDir = mCppcheck.settings().buildDir;
if (!buildDir.empty()) {
std::map<std::string,std::size_t> files2;
for (const QString& file : mFiles)
files2[file.toStdString()] = 0;
mCppcheck.analyseWholeProgram(buildDir, files2);
}
mFiles.clear();
emit done();
return;
}
QString file = mResult.getNextFile();
while (!file.isEmpty() && mState == Running) {
qDebug() << "Checking file" << file;
mCppcheck.check(file.toStdString());
runAddonsAndTools(nullptr, file);
emit fileChecked(file);
if (mState == Running)
file = mResult.getNextFile();
}
ImportProject::FileSettings fileSettings = mResult.getNextFileSettings();
while (!fileSettings.filename.empty() && mState == Running) {
file = QString::fromStdString(fileSettings.filename);
qDebug() << "Checking file" << file;
mCppcheck.check(fileSettings);
runAddonsAndTools(&fileSettings, QString::fromStdString(fileSettings.filename));
emit fileChecked(file);
if (mState == Running)
fileSettings = mResult.getNextFileSettings();
}
if (mState == Running)
mState = Ready;
else
mState = Stopped;
emit done();
}
void CheckThread::runAddonsAndTools(const ImportProject::FileSettings *fileSettings, const QString &fileName)
{
foreach (const QString addon, mAddonsAndTools) {
if (addon == CLANG_ANALYZER || addon == CLANG_TIDY) {
if (!fileSettings)
continue;
if (!fileSettings->cfg.empty() && fileSettings->cfg.compare(0,5,"Debug") != 0)
continue;
QStringList args;
for (std::list<std::string>::const_iterator incIt = fileSettings->includePaths.begin(); incIt != fileSettings->includePaths.end(); ++incIt)
args << ("-I" + QString::fromStdString(*incIt));
for (std::list<std::string>::const_iterator i = fileSettings->systemIncludePaths.begin(); i != fileSettings->systemIncludePaths.end(); ++i)
args << "-isystem" << QString::fromStdString(*i);
foreach (QString def, QString::fromStdString(fileSettings->defines).split(";")) {
args << ("-D" + def);
}
foreach (const std::string& U, fileSettings->undefs) {
args << QString::fromStdString("-U" + U);
}
const QString clangPath = CheckThread::clangTidyCmd();
if (!clangPath.isEmpty()) {
QDir dir(clangPath + "/../lib/clang");
foreach (QString ver, dir.entryList()) {
QString includePath = dir.absolutePath() + '/' + ver + "/include";
if (ver[0] != '.' && QDir(includePath).exists()) {
args << "-isystem" << includePath;
break;
}
}
}
#ifdef Q_OS_WIN
// To create compile_commands.json in windows see:
// https://bitsmaker.gitlab.io/post/clang-tidy-from-vs2015/
foreach (QString includePath, mClangIncludePaths) {
if (!includePath.isEmpty()) {
includePath.replace("\\", "/");
args << "-isystem" << includePath.trimmed();
}
}
args << "-U__STDC__" << "-fno-ms-compatibility";
#endif
if (!fileSettings->standard.empty())
args << ("-std=" + QString::fromStdString(fileSettings->standard));
else {
switch (mCppcheck.settings().standards.cpp) {
case Standards::CPP03:
args << "-std=c++03";
break;
case Standards::CPP11:
args << "-std=c++11";
break;
case Standards::CPP14:
args << "-std=c++14";
break;
case Standards::CPP17:
args << "-std=c++17";
break;
case Standards::CPP20:
args << "-std=c++20";
break;
}
}
QString analyzerInfoFile;
const std::string &buildDir = mCppcheck.settings().buildDir;
if (!buildDir.empty()) {
analyzerInfoFile = QString::fromStdString(AnalyzerInformation::getAnalyzerInfoFile(buildDir, fileSettings->filename, fileSettings->cfg));
QStringList args2(args);
args2.insert(0,"-E");
args2 << fileName;
QProcess process;
process.start(clangCmd(),args2);
process.waitForFinished();
const QByteArray &ba = process.readAllStandardOutput();
const quint16 chksum = qChecksum(ba.data(), ba.length());
QFile f1(analyzerInfoFile + '.' + addon + "-E");
if (f1.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream in1(&f1);
const quint16 oldchksum = in1.readAll().toInt();
if (oldchksum == chksum) {
QFile f2(analyzerInfoFile + '.' + addon + "-results");
if (f2.open(QIODevice::ReadOnly | QIODevice::Text)) {
QTextStream in2(&f2);
parseClangErrors(addon, fileName, in2.readAll());
continue;
}
}
f1.close();
}
f1.open(QIODevice::WriteOnly | QIODevice::Text);
QTextStream out1(&f1);
out1 << chksum;
QFile::remove(analyzerInfoFile + '.' + addon + "-results");
}
if (addon == CLANG_ANALYZER) {
/*
// Using clang
args.insert(0,"--analyze");
args.insert(1, "-Xanalyzer");
args.insert(2, "-analyzer-output=text");
args << fileName;
*/
// Using clang-tidy
args.insert(0,"-checks=-*,clang-analyzer-*");
args.insert(1, fileName);
args.insert(2, "--");
} else {
args.insert(0,"-checks=*,-clang-analyzer-*,-llvm*");
args.insert(1, fileName);
args.insert(2, "--");
}
{
const QString cmd(clangTidyCmd());
QString debug(cmd.contains(" ") ? ('\"' + cmd + '\"') : cmd);
foreach (QString arg, args) {
if (arg.contains(" "))
debug += " \"" + arg + '\"';
else
debug += ' ' + arg;
}
qDebug() << debug;
if (!analyzerInfoFile.isEmpty()) {
QFile f(analyzerInfoFile + '.' + addon + "-cmd");
if (f.open(QIODevice::WriteOnly | QIODevice::Text)) {
QTextStream out(&f);
out << debug;
}
}
}
QProcess process;
process.start(clangTidyCmd(), args);
process.waitForFinished(600*1000);
const QString errout(process.readAllStandardOutput() + "\n\n\n" + process.readAllStandardError());
if (!analyzerInfoFile.isEmpty()) {
QFile f(analyzerInfoFile + '.' + addon + "-results");
if (f.open(QIODevice::WriteOnly | QIODevice::Text)) {
QTextStream out(&f);
out << errout;
}
}
parseClangErrors(addon, fileName, errout);
}
}
}
void CheckThread::stop()
{
mState = Stopping;
Settings::terminate();
}
void CheckThread::parseClangErrors(const QString &tool, const QString &file0, QString err)
{
QList<ErrorItem> errorItems;
ErrorItem errorItem;
QRegExp r1("(.+):([0-9]+):([0-9]+): (note|warning|error|fatal error): (.*)");
QRegExp r2("(.*)\\[([a-zA-Z0-9\\-_\\.]+)\\]");
QTextStream in(&err, QIODevice::ReadOnly);
while (!in.atEnd()) {
QString line = in.readLine();
if (line.startsWith("Assertion failed:")) {
ErrorItem e;
e.errorPath.append(QErrorPathItem());
e.errorPath.last().file = file0;
e.errorPath.last().line = 1;
e.errorPath.last().column = 1;
e.errorId = tool + "-internal-error";
e.file0 = file0;
e.message = line;
e.severity = Severity::information;
errorItems.append(e);
continue;
}
if (!r1.exactMatch(line))
continue;
if (r1.cap(4) != "note") {
errorItems.append(errorItem);
errorItem = ErrorItem();
errorItem.file0 = r1.cap(1);
}
errorItem.errorPath.append(QErrorPathItem());
errorItem.errorPath.last().file = r1.cap(1);
errorItem.errorPath.last().line = r1.cap(2).toInt();
errorItem.errorPath.last().column = r1.cap(3).toInt();
if (r1.cap(4) == "warning")
errorItem.severity = Severity::SeverityType::warning;
else if (r1.cap(4) == "error" || r1.cap(4) == "fatal error")
errorItem.severity = Severity::SeverityType::error;
QString message,id;
if (r2.exactMatch(r1.cap(5))) {
message = r2.cap(1);
const QString id1(r2.cap(2));
if (id1.startsWith("clang"))
id = id1;
else
id = tool + '-' + r2.cap(2);
if (tool == CLANG_TIDY) {
if (id1.startsWith("performance"))
errorItem.severity = Severity::SeverityType::performance;
else if (id1.startsWith("portability"))
errorItem.severity = Severity::SeverityType::portability;
else if (id1.startsWith("cert") || (id1.startsWith("misc") && !id1.contains("unused")))
errorItem.severity = Severity::SeverityType::warning;
else
errorItem.severity = Severity::SeverityType::style;
}
} else {
message = r1.cap(5);
id = CLANG_ANALYZER;
}
if (errorItem.errorPath.size() == 1) {
errorItem.message = message;
errorItem.errorId = id;
}
errorItem.errorPath.last().info = message;
}
errorItems.append(errorItem);
foreach (const ErrorItem &e, errorItems) {
if (e.errorPath.isEmpty())
continue;
Suppressions::ErrorMessage errorMessage;
errorMessage.setFileName(e.errorPath.back().file.toStdString());
errorMessage.lineNumber = e.errorPath.back().line;
errorMessage.errorId = e.errorId.toStdString();
errorMessage.symbolNames = e.symbolNames.toStdString();
if (isSuppressed(errorMessage))
continue;
std::list<ErrorMessage::FileLocation> callstack;
foreach (const QErrorPathItem &path, e.errorPath) {
callstack.push_back(ErrorMessage::FileLocation(path.file.toStdString(), path.info.toStdString(), path.line, path.column));
}
const std::string f0 = file0.toStdString();
const std::string msg = e.message.toStdString();
const std::string id = e.errorId.toStdString();
ErrorMessage errmsg(callstack, f0, e.severity, msg, id, Certainty::normal);
mResult.reportErr(errmsg);
}
}
bool CheckThread::isSuppressed(const Suppressions::ErrorMessage &errorMessage) const
{
foreach (const Suppressions::Suppression &suppression, mSuppressions) {
if (suppression.isSuppressed(errorMessage))
return true;
}
return false;
}
QString CheckThread::clangCmd()
{
QString path = QSettings().value(SETTINGS_CLANG_PATH,QString()).toString();
if (!path.isEmpty())
path += '/';
path += "clang";
#ifdef Q_OS_WIN
path += ".exe";
#endif
QProcess process;
process.start(path, QStringList() << "--version");
process.waitForFinished();
if (process.exitCode() == 0)
return path;
#ifdef Q_OS_WIN
// Try to autodetect clang
if (QFileInfo("C:/Program Files/LLVM/bin/clang.exe").exists())
return "C:/Program Files/LLVM/bin/clang.exe";
#endif
return QString();
}
QString CheckThread::clangTidyCmd()
{
QString path = QSettings().value(SETTINGS_CLANG_PATH,QString()).toString();
if (!path.isEmpty())
path += '/';
path += "clang-tidy";
#ifdef Q_OS_WIN
path += ".exe";
#endif
QProcess process;
process.start(path, QStringList() << "--version");
process.waitForFinished();
if (process.exitCode() == 0)
return path;
#ifdef Q_OS_WIN
// Try to autodetect clang-tidy
if (QFileInfo("C:/Program Files/LLVM/bin/clang-tidy.exe").exists())
return "C:/Program Files/LLVM/bin/clang-tidy.exe";
#endif
return QString();
}