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-rw-r--r--app/main.cpp20
-rw-r--r--app/perfunwind.cpp21
-rw-r--r--app/perfunwind.h104
3 files changed, 87 insertions, 58 deletions
diff --git a/app/main.cpp b/app/main.cpp
index bcc2ad8..0de996d 100644
--- a/app/main.cpp
+++ b/app/main.cpp
@@ -111,8 +111,7 @@ int main(int argc, char *argv[])
QDir::rootPath());
parser.addOption(sysroot);
- const auto defaultDebug = QString::fromLatin1("%1usr%1lib%1debug%2%3%1.debug%2.debug")
- .arg(QDir::separator(), QDir::listSeparator(), QDir::homePath());
+ const auto defaultDebug = PerfUnwind::defaultDebugInfoPath();
QCommandLineOption debug(QLatin1String("debug"),
QCoreApplication::translate(
"main",
@@ -150,7 +149,7 @@ int main(int argc, char *argv[])
defaultArch);
parser.addOption(arch);
- const auto defaultKallsyms = QString::fromLatin1("%1proc%1kallsyms").arg(QDir::separator());
+ const auto defaultKallsyms = PerfUnwind::defaultKallsymsPath();
QCommandLineOption kallsymsPath(QLatin1String("kallsyms"),
QCoreApplication::translate(
"main", "Path to kallsyms mapping to resolve kernel "
@@ -227,11 +226,16 @@ int main(int argc, char *argv[])
PerfUnwind unwind(outfile.data(), parser.value(sysroot), parser.isSet(debug) ?
parser.value(debug) : parser.value(sysroot) + parser.value(debug),
- parser.value(extra), parser.value(appPath), parser.isSet(kallsymsPath)
- ? parser.value(kallsymsPath)
- : parser.value(sysroot) + parser.value(kallsymsPath),
- parser.isSet(kallsymsPath), parser.isSet(printStats),
- maxEventBufferSize, maxFramesValue);
+ parser.value(extra), parser.value(appPath), parser.isSet(printStats));
+
+ unwind.setKallsymsPath(parser.isSet(kallsymsPath)
+ ? parser.value(kallsymsPath)
+ : (parser.value(sysroot) + parser.value(kallsymsPath)));
+
+ unwind.setIgnoreKallsymsBuildId(parser.isSet(kallsymsPath));
+
+ unwind.setMaxEventBufferSize(maxEventBufferSize);
+ unwind.setMaxUnwindFrames(maxFramesValue);
PerfHeader header(infile.data());
PerfAttributes attributes;
diff --git a/app/perfunwind.cpp b/app/perfunwind.cpp
index 4ace26b..eaad741 100644
--- a/app/perfunwind.cpp
+++ b/app/perfunwind.cpp
@@ -85,19 +85,26 @@ static int find_debuginfo(Dwfl_Module *module, void **userData, const char *modu
return symbolTable->findDebugInfo(module, moduleName, base, file, debugLink, crc, debugInfoFilename);
}
+QString PerfUnwind::defaultDebugInfoPath()
+{
+ return QString::fromLatin1("%1usr%1lib%1debug%2%3%1.debug%2.debug")
+ .arg(QDir::separator(), QDir::listSeparator(), QDir::homePath());
+}
+
+QString PerfUnwind::defaultKallsymsPath()
+{
+ return QString::fromLatin1("%1proc%1kallsyms").arg(QDir::separator());
+}
+
PerfUnwind::PerfUnwind(QIODevice *output, const QString &systemRoot, const QString &debugPath,
- const QString &extraLibsPath, const QString &appPath,
- const QString &kallsymsPath, bool ignoreKallsymsBuildId,
- bool printStats, uint maxEventBufferSize, int maxFrames) :
+ const QString &extraLibsPath, const QString &appPath, bool printStats) :
m_output(output), m_architecture(PerfRegisterInfo::ARCH_INVALID), m_systemRoot(systemRoot),
m_extraLibsPath(extraLibsPath), m_appPath(appPath), m_debugPath(debugPath),
- m_kallsymsPath(kallsymsPath), m_ignoreKallsymsBuildId(ignoreKallsymsBuildId),
- m_maxEventBufferSize(maxEventBufferSize), m_eventBufferSize(0),
- m_lastFlushMaxTime(0)
+ m_kallsymsPath(QDir::rootPath() + defaultKallsymsPath()), m_ignoreKallsymsBuildId(false),
+ m_maxEventBufferSize(10 * (1 << 20)), m_eventBufferSize(0), m_lastFlushMaxTime(0)
{
m_stats.enabled = printStats;
m_currentUnwind.unwind = this;
- m_currentUnwind.maxFrames = maxFrames;
m_offlineCallbacks.find_elf = dwfl_build_id_find_elf;
m_offlineCallbacks.find_debuginfo = find_debuginfo;
m_offlineCallbacks.section_address = dwfl_offline_section_address;
diff --git a/app/perfunwind.h b/app/perfunwind.h
index e259676..e1ab885 100644
--- a/app/perfunwind.h
+++ b/app/perfunwind.h
@@ -33,6 +33,7 @@
#include <QIODevice>
#include <QByteArray>
#include <QString>
+#include <QDir>
#include <limits>
@@ -97,15 +98,67 @@ public:
bool isInterworking;
};
+ struct Stats
+ {
+ Stats()
+ : numSamples(0), numMmaps(0), numRounds(0), numBufferFlushes(0),
+ numTimeViolatingSamples(0), numTimeViolatingMmaps(0),
+ numSamplesInRound(0), numMmapsInRound(0),
+ maxSamplesPerRound(0), maxMmapsPerRound(0),
+ maxSamplesPerFlush(0), maxMmapsPerFlush(0),
+ maxBufferSize(0), maxTotalEventSizePerRound(0),
+ maxTime(0), maxTimeBetweenRounds(0), maxReorderTime(0),
+ lastRoundTime(0), totalEventSizePerRound(0),
+ enabled(false)
+ {}
+
+ void addEventTime(quint64 time);
+ void finishedRound();
+
+ quint64 numSamples;
+ quint64 numMmaps;
+ quint64 numRounds;
+ quint64 numBufferFlushes;
+ quint64 numTimeViolatingSamples;
+ quint64 numTimeViolatingMmaps;
+ int numSamplesInRound;
+ int numMmapsInRound;
+ int maxSamplesPerRound;
+ int maxMmapsPerRound;
+ int maxSamplesPerFlush;
+ int maxMmapsPerFlush;
+ uint maxBufferSize;
+ uint maxTotalEventSizePerRound;
+ quint64 maxTime;
+ quint64 maxTimeBetweenRounds;
+ quint64 maxReorderTime;
+ quint64 lastRoundTime;
+ uint totalEventSizePerRound;
+ bool enabled;
+ };
+
static const quint32 s_kernelPid = std::numeric_limits<quint32>::max();
+ static QString defaultDebugInfoPath();
+ static QString defaultKallsymsPath();
- PerfUnwind(QIODevice *output, const QString &systemRoot, const QString &debugInfo,
- const QString &extraLibs, const QString &appPath,
- const QString &kallsymsPath, bool ignoreKallsymsBuildId,
- bool printStats, uint maxEventBufferSize,
- int maxFrames);
+ PerfUnwind(QIODevice *output, const QString &systemRoot = QDir::rootPath(),
+ const QString &debugPath = defaultDebugInfoPath(),
+ const QString &extraLibs = QString(), const QString &appPath = QString(),
+ bool printStats = false);
~PerfUnwind();
+ QString kallsymsPath() const { return m_kallsymsPath; }
+ void setKallsymsPath(const QString &kallsymsPath) { m_kallsymsPath = kallsymsPath; }
+
+ bool ignoreKallsymsBuildId() const { return m_ignoreKallsymsBuildId; }
+ void setIgnoreKallsymsBuildId(bool ignore) { m_ignoreKallsymsBuildId = ignore; }
+
+ uint maxEventBufferSize() const { return m_maxEventBufferSize; }
+ void setMaxEventBufferSize(uint size) { m_maxEventBufferSize = size; }
+
+ int maxUnwindFrames() const { return m_currentUnwind.maxFrames; }
+ void setMaxUnwindFrames(int maxUnwindFrames) { m_currentUnwind.maxFrames = maxUnwindFrames; }
+
PerfRegisterInfo::Architecture architecture() const { return m_architecture; }
void setArchitecture(PerfRegisterInfo::Architecture architecture)
{
@@ -155,6 +208,9 @@ public:
QString extraLibsPath() const { return m_extraLibsPath; }
QString appPath() const { return m_appPath; }
QString debugPath() const { return m_debugPath; }
+ Stats stats() const { return m_stats; }
+
+ void flushEventBuffer() { flushEventBuffer(0); }
private:
@@ -213,44 +269,6 @@ private:
uint m_eventBufferSize;
quint64 m_lastFlushMaxTime;
- struct Stats
- {
- Stats()
- : numSamples(0), numMmaps(0), numRounds(0), numBufferFlushes(0),
- numTimeViolatingSamples(0), numTimeViolatingMmaps(0),
- numSamplesInRound(0), numMmapsInRound(0),
- maxSamplesPerRound(0), maxMmapsPerRound(0),
- maxSamplesPerFlush(0), maxMmapsPerFlush(0),
- maxBufferSize(0), maxTotalEventSizePerRound(0),
- maxTime(0), maxTimeBetweenRounds(0), maxReorderTime(0),
- lastRoundTime(0), totalEventSizePerRound(0),
- enabled(false)
- {}
-
- void addEventTime(quint64 time);
- void finishedRound();
-
- quint64 numSamples;
- quint64 numMmaps;
- quint64 numRounds;
- quint64 numBufferFlushes;
- quint64 numTimeViolatingSamples;
- quint64 numTimeViolatingMmaps;
- int numSamplesInRound;
- int numMmapsInRound;
- int maxSamplesPerRound;
- int maxMmapsPerRound;
- int maxSamplesPerFlush;
- int maxMmapsPerFlush;
- uint maxBufferSize;
- uint maxTotalEventSizePerRound;
- quint64 maxTime;
- quint64 maxTimeBetweenRounds;
- quint64 maxReorderTime;
- quint64 lastRoundTime;
- uint totalEventSizePerRound;
- bool enabled;
- };
Stats m_stats;
void unwindStack(Dwfl *dwfl);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-23 15:55:32 +0000