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debugger: make use of dynamic type for dumpers configurable

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It's too expensive to have it unconditionally on in some settings.
Giving the user the possibility to switch it off seems ok.

Change-Id: I7bdcb0ce919f0dca83a4563ac83958efdeb251e7
Reviewed-by: hjk <qthjk@ovi.com>
This commit is contained in:
hjk
2011-11-29 12:20:06 +01:00
committed by hjk
parent a24c49720a
commit 600a2f839e
8 changed files with 75 additions and 26 deletions
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58
share/qtcreator/dumper/dumper.py
View File

@@ -89,11 +89,38 @@ def hasInferiorThreadList():
except:
return False
def dynamicTypeName(value):
#vtbl = str(parseAndEvaluate("{int(*)(int)}%s" % long(value.address)))
vtbl = gdb.execute("info symbol {int*}%s" % long(value.address),
to_string = True)
pos1 = vtbl.find("vtable ")
if pos1 != -1:
pos1 += 11
pos2 = vtbl.find(" +", pos1)
if pos2 != -1:
return vtbl[pos1 : pos2]
return str(value.type)
def upcast(value):
try:
type = value.dynamic_type
return value.cast(type)
return value.cast(value.dynamic_type)
except:
pass
#try:
# return value.cast(lookupType(dynamicTypeName(value)))
#except:
# pass
return value
def expensiveUpcast(value):
try:
return value.cast(value.dynamic_type)
except:
pass
try:
return value.cast(lookupType(dynamicTypeName(value)))
except:
pass
return value
typeCache = {}
@@ -956,6 +983,7 @@ class Dumper:
elif arg.startswith("watchers:"):
watchers = base64.b16decode(arg[pos:], True)
self.useDynamicType = "dyntype" in options
self.useFancy = "fancy" in options
self.passExceptions = "pe" in options
self.autoDerefPointers = "autoderef" in options
@@ -1542,30 +1570,26 @@ class Dumper:
warn("WRONG ASSUMPTION HERE: %s " % type.code)
check(False)
#vtbl = str(parseAndEvaluate("{int(*)(int)}%s" % long(value.address)))
vtbl = gdb.execute("info symbol {int*}%s" % long(value.address),
to_string = True)
pos1 = vtbl.find("vtable ")
if pos1 != -1:
pos1 += 11
pos2 = vtbl.find(" +", pos1)
if pos2 != -1:
self.putType(vtbl[pos1 : pos2], 1)
if self.useDynamicType:
dtypeName = dynamicTypeName(value)
else:
dtypeName = typeName
if self.useFancy and (format is None or format >= 1):
self.putAddress(value.address)
self.putType(typeName)
self.putType(dtypeName)
if typeName in qqDumpers:
qqDumpers[typeName](self, value)
if dtypeName in qqDumpers:
qqDumpers[dtypeName](self, expensiveUpcast(value))
return
nsStrippedType = self.stripNamespaceFromType(typeName)\
nsStrippedType = self.stripNamespaceFromType(dtypeName)\
.replace("::", "__")
#warn(" STRIPPED: %s" % nsStrippedType)
#warn(" DUMPERS: %s" % (nsStrippedType in qqDumpers))
if nsStrippedType in qqDumpers:
qqDumpers[nsStrippedType](self, value)
qqDumpers[nsStrippedType](self, expensiveUpcast(value))
return
# Is this derived from QObject?
@@ -1580,7 +1604,7 @@ class Dumper:
fields = extractFields(type)
#fields = type.fields()
self.putType(typeName)
self.putType(dtypeName)
self.putAddress(value.address)
self.putValue("{...}")

8
src/plugins/debugger/debuggeractions.cpp
View File

@@ -357,6 +357,14 @@ DebuggerSettings::DebuggerSettings(QSettings *settings)
item->setValue(false);
insertItem(AutoEnrichParameters, item);
item = new SavedAction(this);
item->setSettingsKey(debugModeGroup, QLatin1String("UseDynamicType"));
item->setText(tr("Use dynamic object type for display"));
item->setCheckable(true);
item->setDefaultValue(true);
item->setValue(true);
insertItem(UseDynamicType, item);
item = new SavedAction(this);
item->setSettingsKey(debugModeGroup, QLatin1String("TargetAsync"));
item->setCheckable(true);

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

@@ -120,6 +120,7 @@ enum DebuggerActionCode
GdbStartupCommands,
GdbWatchdogTimeout,
AutoEnrichParameters,
UseDynamicType,
TargetAsync,
// Stack

3
src/plugins/debugger/gdb/gdboptionspage.cpp
View File

@@ -88,6 +88,8 @@ QWidget *GdbOptionsPage::createPage(QWidget *parent)
m_ui->checkBoxLoadGdbInit);
m_group.insert(debuggerCore()->action(AutoEnrichParameters),
m_ui->checkBoxAutoEnrichParameters);
m_group.insert(debuggerCore()->action(UseDynamicType),
m_ui->checkBoxUseDynamicType);
m_group.insert(debuggerCore()->action(TargetAsync),
m_ui->checkBoxTargetAsync);
m_group.insert(debuggerCore()->action(AdjustBreakpointLocations),
@@ -120,6 +122,7 @@ QWidget *GdbOptionsPage::createPage(QWidget *parent)
<< sep << m_ui->groupBoxLocations->title()
<< sep << m_ui->checkBoxLoadGdbInit->text()
<< sep << m_ui->checkBoxTargetAsync->text()
<< sep << m_ui->checkBoxUseDynamicType->text()
<< sep << m_ui->labelGdbWatchdogTimeout->text()
<< sep << m_ui->checkBoxEnableReverseDebugging->text()
<< sep << m_ui->checkBoxSkipKnownFrames->text()

20
src/plugins/debugger/gdb/gdboptionspage.ui
View File

@@ -92,6 +92,16 @@ on slow machines. In this case, the value should be increased.</string>
</widget>
</item>
<item row="4" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxUseDynamicType">
<property name="toolTip">
<string>This specifies whether the dynamic or the static type of objects will be displayed. Choosing the dynamic type might be slower.</string>
</property>
<property name="text">
<string>Use dynamic object type for display</string>
</property>
</widget>
</item>
<item row="5" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxLoadGdbInit">
<property name="toolTip">
<string>This allows or inhibits reading the user's default .gdbinit file on debugger startup.</string>
@@ -101,14 +111,14 @@ on slow machines. In this case, the value should be increased.</string>
</property>
</widget>
</item>
<item row="5" column="0" colspan="2">
<item row="6" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxTargetAsync">
<property name="text">
<string>Use asynchronous mode to control the inferior</string>
</property>
</widget>
</item>
<item row="6" column="0" colspan="2">
<item row="7" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxAutoEnrichParameters">
<property name="toolTip">
<string>This adds common paths to locations of debug information at debugger startup.</string>
@@ -118,21 +128,21 @@ on slow machines. In this case, the value should be increased.</string>
</property>
</widget>
</item>
<item row="7" column="0" colspan="2">
<item row="8" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxBreakOnWarning">
<property name="text">
<string>Stop when a qWarning is issued</string>
</property>
</widget>
</item>
<item row="8" column="0" colspan="2">
<item row="9" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxBreakOnFatal">
<property name="text">
<string>Stop when a qFatal is issued</string>
</property>
</widget>
</item>
<item row="9" column="0" colspan="2">
<item row="10" column="0" colspan="2">
<widget class="QCheckBox" name="checkBoxEnableReverseDebugging">
<property name="toolTip">
<string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Selecting this enables reverse debugging.&lt;/p&gt;&lt;.p&gt;&lt;b&gt;Note:&lt;/b&gt; This feature is very slow and unstable on the GDB side. It exhibits unpredictable behavior when going backwards over system calls and is very likely to destroy your debugging session.&lt;/p&gt;&lt;body&gt;&lt;/html&gt;</string>

6
src/plugins/debugger/gdb/pythongdbengine.cpp
View File

@@ -93,12 +93,14 @@ void GdbEngine::updateLocalsPython(const UpdateParameters &params)
const static bool alwaysVerbose = !qgetenv("QTC_DEBUGGER_PYTHON_VERBOSE").isEmpty();
QByteArray options;
if (alwaysVerbose)
options += "pe,";
if (debuggerCore()->boolSetting(UseDebuggingHelpers))
options += "fancy,";
if (debuggerCore()->boolSetting(AutoDerefPointers))
options += "autoderef,";
if (alwaysVerbose)
options += "pe,";
if (debuggerCore()->boolSetting(UseDynamicType))
options += "dyntype,";
if (options.isEmpty())
options += "defaults,";
if (params.tryPartial)

1
src/plugins/debugger/watchwindow.cpp
View File

@@ -864,6 +864,7 @@ void WatchWindow::contextMenuEvent(QContextMenuEvent *ev)
menu.addAction(debuggerCore()->action(ShowStdNamespace));
menu.addAction(debuggerCore()->action(ShowQtNamespace));
menu.addAction(debuggerCore()->action(SortStructMembers));
menu.addAction(debuggerCore()->action(UseDynamicType));
QAction *actClearCodeModelSnapshot
= new QAction(tr("Refresh Code Model Snapshot"), &menu);