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debugger: work on a "synchroneous" mode

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For the case that gdb can give all the interesting data in one go.
This commit is contained in:
hjk
2009-10-12 14:50:27 +02:00
parent 982347dda5
commit 7e3d954195
3 changed files with 129 additions and 35 deletions
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111
src/plugins/debugger/gdb/gdbengine.cpp
View File

@@ -89,7 +89,7 @@
#endif
#include <ctype.h>
// FIXME: temporary hack to evalute tbreak based step-over behaviour
// FIXME: temporary hack to evalaute tbreak based step-over behaviour
static QString lastFile;
static int lastLine;
@@ -2648,8 +2648,6 @@ static void setWatchDataSAddress(WatchData &data, const GdbMi &mi)
void GdbEngine::setUseDebuggingHelpers(const QVariant &on)
{
//qDebug() << "SWITCHING ON/OFF DUMPER DEBUGGING:" << on;
// FIXME: a bit too harsh, but otherwise the treeview sometimes look funny
//m_expandedINames.clear();
Q_UNUSED(on)
setTokenBarrier();
updateLocals();
@@ -2916,6 +2914,7 @@ void GdbEngine::updateSubItem(const WatchData &data0)
return;
}
//#if !X
if (data.isHasChildrenNeeded() && data.variable.isEmpty()) {
#if DEBUG_SUBITEM
qDebug() << "UPDATE SUBITEM: VARIABLE NEEDED FOR CHILDCOUNT";
@@ -2925,6 +2924,7 @@ void GdbEngine::updateSubItem(const WatchData &data0)
// item, with childrenNeeded() set.
return;
}
//#endif
if (data.isHasChildrenNeeded()) {
QTC_ASSERT(!data.variable.isEmpty(), return); // tested above
@@ -2939,6 +2939,21 @@ void GdbEngine::updateSubItem(const WatchData &data0)
void GdbEngine::updateWatchData(const WatchData &data)
{
if (isSynchroneous()) {
// This should only be called for fresh expanded items, not for
// items that had their children retrieved earlier.
qDebug() << "\nUPDATE WATCH DATA: " << data.toString() << "\n";
#if 0
WatchData data1 = data;
data1.setAllUnneeded();
insertData(data1);
rebuildModel();
#else
if (data.iname.endsWith(_(".")))
return;
updateLocals();
#endif
} else {
// Bump requests to avoid model rebuilding during the nested
// updateWatchModel runs.
++m_pendingRequests;
@@ -2950,6 +2965,7 @@ void GdbEngine::updateWatchData(const WatchData &data)
updateWatchDataHelper(data);
#endif
}
}
void GdbEngine::updateWatchDataHelper(const WatchData &data)
{
@@ -3341,12 +3357,6 @@ void GdbEngine::handleDebuggingHelperValue3(const GdbResponse &response)
void GdbEngine::updateLocals()
{
// Asynchronous load of injected library, initialize in first stop
if (m_dumperInjectionLoad && m_debuggingHelperState == DebuggingHelperLoadTried
&& m_dumperHelper.typeCount() == 0
&& inferiorPid() > 0)
tryQueryDebuggingHelpers();
m_pendingRequests = 0;
m_processedNames.clear();
@@ -3355,6 +3365,19 @@ void GdbEngine::updateLocals()
m_toolTipExpression.clear();
manager()->watchHandler()->beginCycle();
// Asynchronous load of injected library, initialize in first stop
if (m_dumperInjectionLoad && m_debuggingHelperState == DebuggingHelperLoadTried
&& m_dumperHelper.typeCount() == 0
&& inferiorPid() > 0)
tryQueryDebuggingHelpers();
if (isSynchroneous()) {
QStringList expanded = m_manager->watchHandler()->expandedINames().toList();
qDebug() << "EXPANDED: " << expanded;
postCommand(_("bb %1").arg(expanded.join(_(","))),
WatchUpdate, CB(handleStackFrame1));
postCommand(_("p 0"), WatchUpdate, CB(handleStackFrame2));
} else {
QString level = QString::number(currentFrame());
// '2' is 'list with type and value'
QString cmd = _("-stack-list-arguments 2 ") + level + _c(' ') + level;
@@ -3363,6 +3386,50 @@ void GdbEngine::updateLocals()
postCommand(_("-stack-list-locals 2"), WatchUpdate,
CB(handleStackListLocals)); // stage 2/2
}
}
void GdbEngine::handleStackFrame1(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
QByteArray out = response.data.findChild("consolestreamoutput").data();
while (out.endsWith(' ') || out.endsWith('\n'))
out.chop(1);
//qDebug() << "FIRST CHUNK: " << out;
m_firstChunk = out;
} else if (response.resultClass == GdbResultError) {
QTC_ASSERT(false, /**/);
}
}
void GdbEngine::handleStackFrame2(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
QByteArray out = response.data.findChild("consolestreamoutput").data();
while (out.endsWith(' ') || out.endsWith('\n'))
out.chop(1);
//qDebug() << "SECOND CHUNK: " << out;
out = m_firstChunk + out;
// FIXME: Hack, make sure dumper does not return "{}"
out.replace(",{}", "");
GdbMi all("[" + out + "]");
qDebug() << "ALL: " << all.toString();
QList<GdbMi> locals = all.children();
//manager()->watchHandler()->insertBulkData(locals);
//setLocals(locals);
WatchData *data = manager()->watchHandler()->findItem(_("local"));
QTC_ASSERT(data, return);
QList<WatchData> list;
foreach (const GdbMi &local, locals)
handleChildren(*data, local, &list);
manager()->watchHandler()->insertBulkData(list);
manager()->watchHandler()->updateWatchers();
} else if (response.resultClass == GdbResultError) {
QTC_ASSERT(false, /**/);
}
}
void GdbEngine::handleStackListArguments(const GdbResponse &response)
{
@@ -3456,6 +3523,13 @@ void GdbEngine::setLocals(const QList<GdbMi> &locals)
data.exp = nam;
data.framekey = m_currentFrame + data.name;
setWatchDataType(data, item.findChild("type"));
if (isSynchroneous()) {
setWatchDataValue(data, item.findChild("value"),
item.findChild("valueencoded").data().toInt());
// We know that the complete list of children is
// somewhere in the response.
data.setChildrenUnneeded();
} else {
// set value only directly if it is simple enough, otherwise
// pass through the insertData() machinery
if (isIntOrFloatType(data.type) || isPointerType(data.type))
@@ -3464,6 +3538,8 @@ void GdbEngine::setLocals(const QList<GdbMi> &locals)
setWatchDataValue(data, item.findChild("value"));
data.setHasChildren(false);
}
}
// Let's be a bit more bold:
//if (!hasDebuggingHelperForType(data.type)) {
// QByteArray value = item.findChild("value").data();
@@ -3515,7 +3591,8 @@ void GdbEngine::handleVarListChildrenHelper(const GdbMi &item,
//qDebug() << "DATA" << data.toString();
QString cmd = _("-var-list-children --all-values \"") + data.variable + _c('"');
//iname += '.' + exp;
postCommand(cmd, WatchUpdate, CB(handleVarListChildren), QVariant::fromValue(data));
postCommand(cmd, WatchUpdate,
CB(handleVarListChildren), QVariant::fromValue(data));
} else if (item.findChild("numchild").data() == "0") {
// happens for structs without data, e.g. interfaces.
WatchData data;
@@ -3533,7 +3610,8 @@ void GdbEngine::handleVarListChildrenHelper(const GdbMi &item,
WatchData data;
data.iname = _(name);
QString cmd = _("-var-list-children --all-values \"") + data.variable + _c('"');
postCommand(cmd, WatchUpdate, CB(handleVarListChildren), QVariant::fromValue(data));
postCommand(cmd, WatchUpdate,
CB(handleVarListChildren), QVariant::fromValue(data));
} else if (exp == "staticMetaObject") {
// && item.findChild("type").data() == "const QMetaObject")
// FIXME: Namespaces?
@@ -3655,6 +3733,9 @@ void GdbEngine::assignValueInDebugger(const QString &expression, const QString &
void GdbEngine::tryLoadDebuggingHelpers()
{
if (isSynchroneous())
return;
if (m_debuggingHelperState != DebuggingHelperUninitialized)
return;
if (!startModeAllowsDumpers()) {
@@ -3735,9 +3816,13 @@ void GdbEngine::tryLoadDebuggingHelpers()
void GdbEngine::tryQueryDebuggingHelpers()
{
#if !X
// retrieve list of dumpable classes
postCommand(_("call (void*)qDumpObjectData440(1,%1+1,0,0,0,0,0,0)"), EmbedToken);
postCommand(_("p (char*)&qDumpOutBuffer"), CB(handleQueryDebuggingHelper));
#else
m_debuggingHelperState = DebuggingHelperUnavailable;
#endif
}
void GdbEngine::recheckDebuggingHelperAvailability()
@@ -4186,6 +4271,10 @@ void GdbEngine::showMessageBox(int icon, const QString &title, const QString &te
m_manager->showMessageBox(icon, title, text);
}
bool GdbEngine::isSynchroneous() const
{
return false;
}
//
// Factory

8
src/plugins/debugger/gdb/gdbengine.h
View File

@@ -146,9 +146,10 @@ private:
Q_SLOT void setDebugDebuggingHelpers(const QVariant &on);
Q_SLOT void setUseDebuggingHelpers(const QVariant &on);
Q_SLOT void setAutoDerefPointers(const QVariant &on);
virtual bool isGdbEngine() const { return true; }
bool isGdbEngine() const { return true; }
bool isSynchroneous() const;
virtual bool checkConfiguration(int toolChain, QString *errorMessage, QString *settingsPage= 0) const;
bool checkConfiguration(int toolChain, QString *errorMessage, QString *settingsPage= 0) const;
//
// Own stuff
@@ -347,6 +348,9 @@ private:
void handleStackListFrames(const GdbResponse &response);
void handleStackSelectThread(const GdbResponse &response);
void handleStackListThreads(const GdbResponse &response);
void handleStackFrame1(const GdbResponse &response);
void handleStackFrame2(const GdbResponse &response);
QByteArray m_firstChunk;
Q_SLOT void reloadStack(bool forceGotoLocation);
Q_SLOT void reloadFullStack();

1
src/plugins/debugger/idebuggerengine.h
View File

@@ -119,6 +119,7 @@ public:
virtual bool isGdbEngine() const { return false; }
virtual bool checkConfiguration(int /* toolChain */, QString * /* errorMessage */, QString * /* settingsPage */ = 0) const { return true; }
virtual bool isSynchroneous() const { return false; }
protected:
void showStatusMessage(const QString &msg, int timeout = -1);
DebuggerState state() const;