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debugger: more work on Qml -> C++ -> Qml "cross stepping"

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This commit is contained in:
hjk
2011-01-24 13:37:07 +01:00
parent e39386352a
commit b9a06c42eb
2 changed files with 66 additions and 34 deletions
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98
src/plugins/debugger/gdb/gdbengine.cpp
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@@ -185,7 +185,7 @@ GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters,
DebuggerEngine *masterEngine)
: DebuggerEngine(startParameters, masterEngine)
{
setObjectName(QLatin1String("GdbEngine"));
setObjectName(_("GdbEngine"));
m_busy = false;
m_gdbAdapter = 0;
@@ -461,8 +461,10 @@ void GdbEngine::handleResponse(const QByteArray &buff)
// line="1584",shlib="/../libFoo_debug.dylib",times="0"}
const GdbMi bkpt = result.findChild("bkpt");
const int number = bkpt.findChild("number").data().toInt();
BreakpointId id = breakHandler()->findBreakpointByNumber(number);
updateBreakpointDataFromOutput(id, bkpt);
if (!isQmlStepBreakpoint1(number) && isQmlStepBreakpoint2(number)) {
BreakpointId id = breakHandler()->findBreakpointByNumber(number);
updateBreakpointDataFromOutput(id, bkpt);
}
} else {
qDebug() << "IGNORED ASYNC OUTPUT"
<< asyncClass << result.toString();
@@ -509,6 +511,15 @@ void GdbEngine::handleResponse(const QByteArray &buff)
m_lastWinException = msgWinException(data);
showMessage(m_lastWinException, LogMisc);
}
if (data.startsWith("QMLBP:")) {
int pos1 = 6;
int pos2 = data.indexOf(' ', pos1);
m_qmlBreakpointNumbers[2] = data.mid(pos1, pos2 - pos1).toInt();
//qDebug() << "FOUND QMLBP: " << m_qmlBreakpointNumbers[2];
//qDebug() << "CURRENT: " << m_qmlBreakpointNumbers;
}
break;
}
@@ -1211,12 +1222,14 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
if (fullName.isEmpty())
fullName = QString::fromUtf8(frame.findChild("file").data());
const bool isSpecialQmlBreakpoint =
m_qmlBreakpointNumbers.keys().contains(bkptno);
if (bkptno && frame.isValid() && !isSpecialQmlBreakpoint) {
if (bkptno && frame.isValid()
&& !isQmlStepBreakpoint1(bkptno)
&& !isQmlStepBreakpoint2(bkptno)) {
// Use opportunity to update the breakpoint marker position.
BreakHandler *handler = breakHandler();
//qDebug() << " PROBLEM: " << m_qmlBreakpointNumbers << bkptno
// << isQmlStepBreakpoint1(bkptno)
// << isQmlStepBreakpoint2(bkptno)
BreakpointId id = handler->findBreakpointByNumber(bkptno);
const BreakpointResponse &response = handler->response(id);
QString fileName = response.fileName;
@@ -1228,9 +1241,12 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
handler->setMarkerFileAndLine(id, fileName, lineNumber);
}
//qDebug() << "BP " << bkptno << data.toString();
// Quickly set the location marker.
if (lineNumber && !debuggerCore()->boolSetting(OperateByInstruction)
&& QFileInfo(fullName).exists() && !isSpecialQmlBreakpoint)
&& QFileInfo(fullName).exists()
&& !isQmlStepBreakpoint1(bkptno)
&& !isQmlStepBreakpoint2(bkptno))
gotoLocation(Location(fullName, lineNumber));
if (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
@@ -1259,6 +1275,8 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
// *stopped arriving earlier than ^done response to an -exec-step
notifyInferiorRunOk();
notifyInferiorSpontaneousStop();
} else if (state() == InferiorStopOk && isQmlStepBreakpoint2(bkptno)) {
// That's expected.
} else {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state());
notifyInferiorStopOk();
@@ -1289,7 +1307,9 @@ void GdbEngine::handleStopResponse(const GdbMi &data)
}
#endif
if (isSpecialQmlBreakpoint)
//qDebug() << "STOP: " << m_qmlBreakpointNumbers;
if (isQmlStepBreakpoint1(bkptno))
return;
handleStop0(data);
@@ -2097,6 +2117,7 @@ void GdbEngine::setTokenBarrier()
void GdbEngine::updateBreakpointDataFromOutput(BreakpointId id, const GdbMi &bkpt)
{
QTC_ASSERT(bkpt.isValid(), return);
BreakpointResponse response = breakHandler()->response(id);
response.multiple = false;
@@ -2359,8 +2380,7 @@ void GdbEngine::handleBreakList(const GdbMi &table)
foreach (const GdbMi &bkpt, bkpts) {
BreakpointResponse needle;
needle.number = bkpt.findChild("number").data().toInt();
// FIXME: Performance.
if (m_qmlBreakpointNumbers.values().contains(needle.number))
if (isQmlStepBreakpoint2(needle.number))
continue;
BreakpointId id = breakHandler()->findSimilarBreakpoint(needle);
if (id != BreakpointId(-1)) {
@@ -3940,11 +3960,7 @@ static DisassemblerLine parseLine(const GdbMi &line)
{
DisassemblerLine dl;
QByteArray address = line.findChild("address").data();
//QByteArray funcName = line.findChild("func-name").data();
//QByteArray offset = line.findChild("offset").data();
dl.address = address.toULongLong();
//ba += funcName + "+" + offset + " ";
//ba += QByteArray(30 - funcName.size() - offset.size(), ' ');
dl.data = _(line.findChild("inst").data());
return dl;
}
@@ -4181,18 +4197,19 @@ bool GdbEngine::startGdb(const QStringList &args, const QString &gdb, const QStr
return false;
}
const QString winPythonVersion = QLatin1String(winPythonVersionC);
const QString winPythonVersion = _(winPythonVersionC);
const QDir dir = fi.absoluteDir();
QProcessEnvironment environment = gdbProc()->processEnvironment();
const QString pythonPathVariable = QLatin1String("PYTHONPATH");
const QString pythonPathVariable = _("PYTHONPATH");
QString pythonPath;
const QString environmentPythonPath = environment.value(pythonPathVariable);
if (dir.exists(winPythonVersion)) {
pythonPath = QDir::toNativeSeparators(dir.absoluteFilePath(winPythonVersion));
} else if (dir.exists(QLatin1String("lib"))) { // Needed for our gdb 7.2 packages
pythonPath = QDir::toNativeSeparators(dir.absoluteFilePath(QLatin1String("lib")));
} else if (dir.exists(_("lib"))) {
// Needed for our gdb 7.2 packages
pythonPath = QDir::toNativeSeparators(dir.absoluteFilePath(_("lib")));
} else {
pythonPath = environmentPythonPath;
}
@@ -4201,8 +4218,8 @@ bool GdbEngine::startGdb(const QStringList &args, const QString &gdb, const QStr
showMessage(_("GDB %1 CANNOT FIND THE PYTHON INSTALLATION.").arg(nativeGdb));
showStatusMessage(_("%1 cannot find python").arg(nativeGdb));
const QString msg = tr("The gdb installed at %1 cannot "
"find a valid python installation in its %2 subdirectory.\n"
"You may set the PYTHONPATH to your installation.")
"find a valid python installation in its %2 subdirectory.\n"
"You may set the PYTHONPATH to your installation.")
.arg(nativeGdb).arg(winPythonVersion);
handleAdapterStartFailed(msg, settingsIdHint);
return false;
@@ -4393,7 +4410,8 @@ void GdbEngine::handleGdbFinished(int code, QProcess::ExitStatus type)
}
}
void GdbEngine::handleAdapterStartFailed(const QString &msg, const QString &settingsIdHint)
void GdbEngine::handleAdapterStartFailed(const QString &msg,
const QString &settingsIdHint)
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage(_("ADAPTER START FAILED"));
@@ -4505,10 +4523,8 @@ void GdbEngine::handleAdapterCrashed(const QString &msg)
showMessageBox(QMessageBox::Critical, tr("Adapter crashed"), msg);
}
void GdbEngine::setUseDebuggingHelpers(const QVariant &on)
void GdbEngine::setUseDebuggingHelpers(const QVariant &)
{
//qDebug() << "SWITCHING ON/OFF DUMPER DEBUGGING:" << on;
Q_UNUSED(on)
setTokenBarrier();
updateLocals();
}
@@ -4566,11 +4582,12 @@ void GdbEngine::handleRemoteSetupFailed(const QString &message)
bool GdbEngine::setupQmlStep(bool on)
{
QTC_ASSERT(isSlaveEngine(), return false);
Q_UNUSED(on);
m_qmlBreakpointNumbers.clear();
//qDebug() << "CLEAR: " << m_qmlBreakpointNumbers;
postCommand("tbreak '" + qtNamespace() + "QScript::FunctionWrapper::proxyCall'\n"
"commands\n"
"set $d=(void*)((FunctionWrapper*)callee)->data->function\n"
"tbreak *$d\ncontinue\nend",
"tbreak *$d\nprintf \"QMLBP:%d \\n\",$bpnum\ncontinue\nend",
NeedsStop, CB(handleSetQmlStepBreakpoint));
m_preparedForQmlBreak = on;
return true;
@@ -4580,19 +4597,32 @@ void GdbEngine::handleSetQmlStepBreakpoint(const GdbResponse &response)
{
//QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
if (response.resultClass == GdbResultDone) {
// 20^done,bkpt={number="2",type="breakpoint",disp="keep",enabled="y",
// addr="<PENDING>",pending="'myns::QScript::qScriptBreaker'"}
const GdbMi bkpt = response.data.findChild("bkpt");
const GdbMi number = bkpt.findChild("number");
const int bpnr = number.data().toInt();
// "{logstreamoutput="tbreak 'myns::QScript::FunctionWrapper::proxyCall'\n"
//,consolestreamoutput="Temporary breakpoint 1 at 0xf166e7:
// file bridge/qscriptfunction.cpp, line 75.\n"}
QByteArray ba = parsePlainConsoleStream(response);
const int pos2 = ba.indexOf(" at 0x");
const int pos1 = ba.lastIndexOf(" ", pos2 - 1) + 1;
QByteArray mid = ba.mid(pos1, pos2 - pos1);
const int bpnr = mid.toInt();
m_qmlBreakpointNumbers[1] = bpnr;
//postCommand("disable " + number.data());
//postCommand("enable " + number.data());
//qDebug() << "SET: " << m_qmlBreakpointNumbers;
}
QTC_ASSERT(masterEngine(), return);
masterEngine()->readyToExecuteQmlStep();
}
bool GdbEngine::isQmlStepBreakpoint1(int bpnr) const
{
//qDebug() << "CHECK 1: " << m_qmlBreakpointNumbers[1] << bpnr;
return bpnr && m_qmlBreakpointNumbers[1] == bpnr;
}
bool GdbEngine::isQmlStepBreakpoint2(int bpnr) const
{
//qDebug() << "CHECK 2: " << m_qmlBreakpointNumbers[2] << bpnr;
return bpnr && m_qmlBreakpointNumbers[2] == bpnr;
}
//
// Factory