qbenchmarkvalgrind.cpp

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Absolute File Name:

/home/qt/qt5_coco/qt5/qtbase/src/testlib/qbenchmarkvalgrind.cpp

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bool QBenchmarkValgrindUtils::haveValgrind()

{

QProcess process;

process.start(QLatin1String("valgrind"), QStringList(QLatin1String("--version")));

return process.waitForStarted() && process.waitForFinished(-1);

}

bool QBenchmarkValgrindUtils::rerunThroughCallgrind(const QStringList &origAppArgs, int &exitCode)

{

if (!QBenchmarkValgrindUtils::runCallgrindSubProcess(origAppArgs, exitCode)) {

QMessageLogger(__FILE__, 6571, __PRETTY_FUNCTION__).warning("failed to run callgrind subprocess");

return false;

}

return true;

}

static void dumpOutput(const QByteArray &data, FILE *fh)

{

QFile file;

file.open(fh, QIODevice::WriteOnly);

file.write(data);

}

qint64 QBenchmarkValgrindUtils::extractResult(const QString &fileName)

{

QFile file(fileName);

const bool openOk = file.open(QIODevice::ReadOnly | QIODevice::Text);

((!(openOk)) ? qt_assert("openOk",__FILE__,8288) : qt_noop());

(void)openOk;;

qint64 val = -1;

bool valSeen = false;

QRegExp rxValue(QLatin1String("^summary: (\\d+)"));

while (!file.atEnd()

!file.atEnd()	Description
TRUE	never evaluated
FALSE	never evaluated

) {

const QString line(QLatin1String(file.readLine()));

if (rxValue.indexIn(line) != -1

rxValue.indexIn(line) != -1	Description
TRUE	never evaluated
FALSE	never evaluated

) {

((!(rxValue.captureCount() == 1)) ? qt_assert("rxValue.captureCount() == 1",__FILE__,9197) : qt_noop());

bool ok;

val = rxValue.cap(1).toLongLong(&ok);

((!(ok)) ? qt_assert("ok",__FILE__,94100) : qt_noop());

valSeen = true;

break;

never executed: break;

}

never executed: end of block

if (!(__builtin_expect(!!(!

__builtin_expe...lSeen), false)	Description
TRUE	never evaluated
FALSE	never evaluated

valSeen)), false)

__builtin_expe...lSeen), false)	Description
TRUE	never evaluated
FALSE	never evaluated

)

QMessageLogger(__FILE__, 100106, __PRETTY_FUNCTION__).fatal("Failed to extract result");

never executed: QMessageLogger(__FILE__, 106, __PRETTY_FUNCTION__).fatal("Failed to extract result");

return

never executed: return val;

val;

never executed: return val;

}

QString QBenchmarkValgrindUtils::getNewestFileName()

{

QStringList nameFilters;

QString base = QBenchmarkGlobalData::current->callgrindOutFileBase;

((!(!base.isEmpty())) ? qt_assert("!base.isEmpty()",__FILE__,109115) : qt_noop());

nameFilters << QString::fromLatin1("%1.*").arg(base);

const QFileInfoList fiList = QDir().entryInfoList(nameFilters, QDir::Files | QDir::Readable);

((!(!fiList.empty())) ? qt_assert("!fiList.empty()",__FILE__,113119) : qt_noop());

int hiSuffix = -1;

QFileInfo lastFileInfo;

const QString pattern = QString::fromLatin1("%1.(\\d+)").arg(base);

QRegExp rx(pattern);

for (QForeachContainer<typename QtPrivate::remove_reference<decltype(fiList)>::type> _container_((fiList)); _container_.control && _container_.i != _container_.e; ++_container_.i, _container_.control ^= 1)for (const QFileInfo &fileInfo = *_container_.i; _container_.control; _container_.control = 0: fiList) {

const int index = rx.indexIn(fileInfo.fileName());

((!(index == 0)) ? qt_assert("index == 0",__FILE__,120126) : qt_noop());

(void)index;;

bool ok;

const int suffix = rx.cap(1).toInt(&ok);

((!(ok)) ? qt_assert("ok",__FILE__,124130) : qt_noop());

((!(suffix >= 0)) ? qt_assert("suffix >= 0",__FILE__,125131) : qt_noop());

if (suffix > hiSuffix

suffix > hiSuffix	Description
TRUE	never evaluated
FALSE	never evaluated

) {

lastFileInfo = fileInfo;

hiSuffix = suffix;

}

never executed: end of block

}

never executed: end of block

return

never executed: return lastFileInfo.fileName();

lastFileInfo.fileName();

never executed: return lastFileInfo.fileName();

}

qint64 QBenchmarkValgrindUtils::extractLastResult()

{

return extractResult(getNewestFileName());

}

void QBenchmarkValgrindUtils::cleanup()

100

{

101

QStringList nameFilters;

102

QString base = QBenchmarkGlobalData::current->callgrindOutFileBase;

103

((!(!base.isEmpty())) ? qt_assert("!base.isEmpty()",__FILE__,144150) : qt_noop());

104

nameFilters

105

<< base

106

<< QString::fromLatin1("%1.*").arg(base);

107

const QFileInfoList fiList = QDir().entryInfoList(nameFilters, QDir::Files | QDir::Readable);

108

109

const bool removeOk = QFile::remove(fileInfo.fileName());

110

((!(removeOk)) ? qt_assert("removeOk",__FILE__,151157) : qt_noop());

111

(void)removeOk;;

112

}

never executed: end of block

113

}

never executed: end of block

114

115

QString QBenchmarkValgrindUtils::outFileBase(qint64 pid)

116

{

117

return QString::fromLatin1("callgrind.out.%1").arg(

118

pid != -1 ? pid : QCoreApplication::applicationPid());

}

bool QBenchmarkValgrindUtils::runCallgrindSubProcess(const QStringList &origAppArgs, int &exitCode)

125

{

126

const QString execFile(origAppArgs.at(0));

127

QStringList args;

128

args << QLatin1String("--tool=callgrind") << QLatin1String("--instr-atstart=yes")

129

<< QLatin1String("--quiet")

130

<< execFile << QLatin1String("-callgrindchild");

for (int i = 1; i < origAppArgs.size(); ++i) {

135

const QString arg(origAppArgs.at(i));

136

if (arg == QLatin1String("-callgrind"))

continue;

args << arg;

}

QProcess process;

process.start(QLatin1String("valgrind"), args);

143

process.waitForStarted(-1);

144

QBenchmarkGlobalData::current->callgrindOutFileBase =

145

QBenchmarkValgrindUtils::outFileBase(process.pid());

146

const bool finishedOk = process.waitForFinished(-1);

147

exitCode = process.exitCode();

148

149

dumpOutput(process.readAllStandardOutput(), stdout);

150

dumpOutput(process.readAllStandardError(), stderr);

return finishedOk;

}

void QBenchmarkCallgrindMeasurer::start()

156

{

157

{unsigned int _qzz_res; { volatile unsigned long long int _zzq_args[6]; volatile unsigned long long int _zzq_result; _zzq_args[0] = (unsigned long long int)(VG_USERREQ__ZERO_STATS); _zzq_args[1] = (unsigned long long int)(0); _zzq_args[2] = (unsigned long long int)(0); _zzq_args[3] = (unsigned long long int)(0); _zzq_args[4] = (unsigned long long int)(0); _zzq_args[5] = (unsigned long long int)(0); __asm__ volatile("rolq $3, %%rdi ; rolq $13, %%rdi\n\t" "rolq $61, %%rdi ; rolq $51, %%rdi\n\t" "xchgq %%rbx,%%rbx" : "=d" (_zzq_result) : "a" (&_zzq_args[0]), "0" (0) : "cc", "memory" ); _qzz_res = _zzq_result; (void)_qzz_res; }; };

158

}

159

160

qint64 QBenchmarkCallgrindMeasurer::checkpoint()

161

{

162

{unsigned int _qzz_res; { volatile unsigned long long int _zzq_args[6]; volatile unsigned long long int _zzq_result; _zzq_args[0] = (unsigned long long int)(VG_USERREQ__DUMP_STATS); _zzq_args[1] = (unsigned long long int)(0); _zzq_args[2] = (unsigned long long int)(0); _zzq_args[3] = (unsigned long long int)(0); _zzq_args[4] = (unsigned long long int)(0); _zzq_args[5] = (unsigned long long int)(0); __asm__ volatile("rolq $3, %%rdi ; rolq $13, %%rdi\n\t" "rolq $61, %%rdi ; rolq $51, %%rdi\n\t" "xchgq %%rbx,%%rbx" : "=d" (_zzq_result) : "a" (&_zzq_args[0]), "0" (0) : "cc", "memory" ); _qzz_res = _zzq_result; (void)_qzz_res; }; };

163

const qint64 result = QBenchmarkValgrindUtils::extractLastResult();

return result;

}

qint64 QBenchmarkCallgrindMeasurer::stop()

168

{

169