Files
qt-creator/src/plugins/debugger/gdb/classicgdbengine.cpp
Oswald Buddenhagen 65c169c80e Merge remote-tracking branch 'origin/2.6'
Conflicts:
	qtcreator.pri
	qtcreator.qbs
	src/plugins/android/androidrunner.cpp
	src/plugins/projectexplorer/kitmanager.cpp

Change-Id: I653ddaef6e341818fc74aacfe30e89c07f40a8c6
2013-01-16 16:46:03 +01:00

1538 lines
55 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "gdbengine.h"
#include "gdbmi.h"
#include "debuggerstartparameters.h"
#include "debuggeractions.h"
#include "debuggercore.h"
#include "debuggerstringutils.h"
#include "stackhandler.h"
#include "watchhandler.h"
#include <coreplugin/icore.h>
#include <qtsupport/qtsupportconstants.h>
#include <utils/qtcassert.h>
#include <utils/savedaction.h>
#include <utils/fileutils.h>
#include <QFile>
#include <QFileInfo>
#include <QMessageBox>
#include <QPushButton>
#if !defined(Q_OS_WIN)
#include <dlfcn.h>
#endif
#include <cctype>
#define PRECONDITION QTC_CHECK(!hasPython())
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)
enum {
debugPending = 0,
debugSubItem = 0,
debug = 0
};
namespace Debugger {
namespace Internal {
// ----------------- QtDumperHelper::TypeData
DumperHelper::TypeData::TypeData() :
type(UnknownType),
isTemplate(false)
{
}
void DumperHelper::TypeData::clear()
{
isTemplate = false;
type = UnknownType;
tmplate.clear();
inner.clear();
}
// ----------------- QtDumperHelper
DumperHelper::DumperHelper() :
m_qtVersion(0),
m_dumperVersion(1.0)
{
qFill(m_specialSizes, m_specialSizes + SpecialSizeCount, 0);
setQClassPrefixes(QByteArray());
}
void DumperHelper::clear()
{
m_nameTypeMap.clear();
m_qtVersion = 0;
m_dumperVersion = 1.0;
m_qtNamespace.clear();
m_sizeCache.clear();
qFill(m_specialSizes, m_specialSizes + SpecialSizeCount, 0);
m_expressionCache.clear();
setQClassPrefixes(QByteArray());
}
QString DumperHelper::msgDumperOutdated(double requiredVersion, double currentVersion)
{
return QCoreApplication::translate("QtDumperHelper",
"Found an outdated version of the debugging helper library (%1); "
"version %2 is required.").
arg(currentVersion).arg(requiredVersion);
}
QString DumperHelper::msgPtraceError(DebuggerStartMode sm)
{
if (sm == StartInternal) {
return QCoreApplication::translate("QtDumperHelper",
"ptrace: Operation not permitted.\n\n"
"Could not attach to the process. "
"Make sure no other debugger traces this process.\n"
"Check the settings of\n"
"/proc/sys/kernel/yama/ptrace_scope\n"
"For more details, see /etc/sysctl.d/10-ptrace.conf\n");
}
return QCoreApplication::translate("QtDumperHelper",
"ptrace: Operation not permitted.\n\n"
"Could not attach to the process. "
"Make sure no other debugger traces this process.\n"
"If your uid matches the uid\n"
"of the target process, check the settings of\n"
"/proc/sys/kernel/yama/ptrace_scope\n"
"For more details, see /etc/sysctl.d/10-ptrace.conf\n");
}
static inline void formatQtVersion(int v, QTextStream &str)
{
str << ((v >> 16) & 0xFF) << '.' << ((v >> 8) & 0xFF) << '.' << (v & 0xFF);
}
QString DumperHelper::toString(bool debug) const
{
if (debug) {
QString rc;
QTextStream str(&rc);
str << "version=";
formatQtVersion(m_qtVersion, str);
str << "dumperversion='" << m_dumperVersion << "' namespace='" << m_qtNamespace << "'," << m_nameTypeMap.size() << " known types <type enum>: ";
const NameTypeMap::const_iterator cend = m_nameTypeMap.constEnd();
for (NameTypeMap::const_iterator it = m_nameTypeMap.constBegin(); it != cend; ++it) {
str <<",[" << it.key() << ',' << it.value() << ']';
}
str << "\nSpecial size: ";
for (int i = 0; i < SpecialSizeCount; i++)
str << ' ' << m_specialSizes[i];
str << "\nSize cache: ";
const SizeCache::const_iterator scend = m_sizeCache.constEnd();
for (SizeCache::const_iterator it = m_sizeCache.constBegin(); it != scend; ++it) {
str << ' ' << it.key() << '=' << it.value() << '\n';
}
str << "\nExpression cache: (" << m_expressionCache.size() << ")\n";
const ExpressionCache::const_iterator excend = m_expressionCache.constEnd();
for (ExpressionCache::const_iterator it = m_expressionCache.constBegin(); it != excend; ++it)
str << " " << it.key() << ' ' << it.value() << '\n';
return rc;
}
const QString nameSpace = m_qtNamespace.isEmpty()
? QCoreApplication::translate("QtDumperHelper", "<none>") : QLatin1String(m_qtNamespace);
return QCoreApplication::translate("QtDumperHelper",
"%n known types, Qt version: %1, Qt namespace: %2 Dumper version: %3",
0, QCoreApplication::CodecForTr,
m_nameTypeMap.size()).arg(QLatin1String(qtVersionString()), nameSpace).arg(m_dumperVersion);
}
DumperHelper::Type DumperHelper::simpleType(const QByteArray &simpleType) const
{
return m_nameTypeMap.value(simpleType, UnknownType);
}
int DumperHelper::qtVersion() const
{
return m_qtVersion;
}
QByteArray DumperHelper::qtNamespace() const
{
return m_qtNamespace;
}
int DumperHelper::typeCount() const
{
return m_nameTypeMap.size();
}
// Look up unnamespaced 'std' types.
static DumperHelper::Type stdType(const QByteArray &type)
{
if (type == "vector")
return DumperHelper::StdVectorType;
if (type == "deque")
return DumperHelper::StdDequeType;
if (type == "set")
return DumperHelper::StdSetType;
if (type == "stack")
return DumperHelper::StdStackType;
if (type == "map")
return DumperHelper::StdMapType;
if (type == "basic_string")
return DumperHelper::StdStringType;
return DumperHelper::UnknownType;
}
static DumperHelper::Type specialType(QByteArray type)
{
// Std classes.
if (type.startsWith("std::"))
return stdType(type.mid(5));
// Strip namespace
// FIXME: that's not a good idea as it makes all namespaces equal.
const int namespaceIndex = type.lastIndexOf("::");
if (namespaceIndex == -1) {
// None ... check for std..
const DumperHelper::Type sType = stdType(type);
if (sType != DumperHelper::UnknownType)
return sType;
} else {
type = type.mid(namespaceIndex + 2);
}
if (type == "QAbstractItem")
return DumperHelper::QAbstractItemType;
if (type == "QMap")
return DumperHelper::QMapType;
if (type == "QMapNode")
return DumperHelper::QMapNodeType;
if (type == "QMultiMap")
return DumperHelper::QMultiMapType;
if (type == "QObject")
return DumperHelper::QObjectType;
if (type == "QObjectSignal")
return DumperHelper::QObjectSignalType;
if (type == "QObjectSlot")
return DumperHelper::QObjectSlotType;
if (type == "QStack")
return DumperHelper::QStackType;
if (type == "QVector")
return DumperHelper::QVectorType;
if (type == "QWidget")
return DumperHelper::QWidgetType;
return DumperHelper::UnknownType;
}
QByteArray DumperHelper::qtVersionString() const
{
QString rc;
QTextStream str(&rc);
formatQtVersion(m_qtVersion, str);
return rc.toLatin1();
}
// Parse a list of types.
typedef QList<QByteArray> QByteArrayList;
static QByteArray qClassName(const QByteArray &qtNamespace, const char *className)
{
if (qtNamespace.isEmpty())
return className;
QByteArray rc = qtNamespace;
rc += "::";
rc += className;
return rc;
}
static double getDumperVersion(const GdbMi &contents)
{
const GdbMi dumperVersionG = contents.findChild("dumperversion");
if (dumperVersionG.type() != GdbMi::Invalid) {
bool ok;
const double v = QString::fromLatin1(dumperVersionG.data()).toDouble(&ok);
if (ok)
return v;
}
return 1.0;
}
void DumperHelper::setQClassPrefixes(const QByteArray &qNamespace)
{
// Prefixes with namespaces
m_qPointerPrefix = qClassName(qNamespace, "QPointer");
m_qSharedPointerPrefix = qClassName(qNamespace, "QSharedPointer");
m_qSharedDataPointerPrefix = qClassName(qNamespace, "QSharedDataPointer");
m_qWeakPointerPrefix = qClassName(qNamespace, "QWeakPointer");
m_qListPrefix = qClassName(qNamespace, "QList");
m_qLinkedListPrefix = qClassName(qNamespace, "QLinkedList");
m_qVectorPrefix = qClassName(qNamespace, "QVector");
m_qQueuePrefix = qClassName(qNamespace, "QQueue");
}
bool DumperHelper::parseQuery(const GdbMi &contents)
{
clear();
if (debug > 1)
qDebug() << "parseQuery" << contents.toString(true, 2);
// Common info, dumper version, etc
QByteArray ns = contents.findChild("namespace").data();
setQtNamespace(ns);
int qtv = 0;
const GdbMi qtversion = contents.findChild("qtversion");
if (qtversion.children().size() == 3) {
qtv = (qtversion.childAt(0).data().toInt() << 16)
+ (qtversion.childAt(1).data().toInt() << 8)
+ qtversion.childAt(2).data().toInt();
}
m_qtVersion = qtv;
// Get list of helpers
QByteArrayList availableSimpleDebuggingHelpers;
foreach (const GdbMi &item, contents.findChild("dumpers").children())
availableSimpleDebuggingHelpers.append(item.data());
// Parse types
m_nameTypeMap.clear();
foreach (const QByteArray &type, availableSimpleDebuggingHelpers) {
const Type t = specialType(type);
m_nameTypeMap.insert(type, t != UnknownType ? t : SupportedType);
}
m_dumperVersion = getDumperVersion(contents);
// Parse sizes
foreach (const GdbMi &sizesList, contents.findChild("sizes").children()) {
const int childCount = sizesList.childCount();
if (childCount > 1) {
const int size = sizesList.childAt(0).data().toInt();
for (int c = 1; c < childCount; c++)
addSize(sizesList.childAt(c).data(), size);
}
}
// Parse expressions
foreach (const GdbMi &exprList, contents.findChild("expressions").children())
if (exprList.childCount() == 2)
m_expressionCache.insert(exprList.childAt(0).data(),
exprList.childAt(1).data());
return true;
}
void DumperHelper::addSize(const QByteArray &name, int size)
{
// Special interest cases
if (name == "char*") {
m_specialSizes[PointerSize] = size;
return;
}
const SpecialSizeType st = specialSizeType(name);
if (st != SpecialSizeCount) {
m_specialSizes[st] = size;
return;
}
do {
// CDB helpers
if (name == "std::string") {
m_sizeCache.insert("std::basic_string<char,std::char_traits<char>,std::allocator<char> >", size);
m_sizeCache.insert("basic_string<char,char_traits<char>,allocator<char> >", size);
break;
}
if (name == "std::wstring") {
m_sizeCache.insert("basic_string<unsigned short,char_traits<unsignedshort>,allocator<unsignedshort> >", size);
m_sizeCache.insert("std::basic_string<unsigned short,std::char_traits<unsigned short>,std::allocator<unsigned short> >", size);
break;
}
} while (false);
m_sizeCache.insert(name, size);
}
DumperHelper::Type DumperHelper::type(const QByteArray &typeName) const
{
const DumperHelper::TypeData td = typeData(typeName);
return td.type;
}
static bool extractTemplate(const QByteArray &type, QByteArray *tmplate, QByteArray *inner)
{
// Input "Template<Inner1,Inner2,...>::Foo" will return "Template::Foo" in
// 'tmplate' and "Inner1@Inner2@..." etc in 'inner'. Result indicates
// whether parsing was successful
// Gdb inserts a blank after each comma which we would like to avoid
tmplate->clear();
inner->clear();
if (!type.contains('<'))
return false;
int level = 0;
bool skipSpace = false;
const int size = type.size();
for (int i = 0; i != size; ++i) {
const char c = type.at(i);
switch (c) {
case '<':
*(level == 0 ? tmplate : inner) += c;
++level;
break;
case '>':
--level;
*(level == 0 ? tmplate : inner) += c;
break;
case ',':
*inner += (level == 1) ? '@' : ',';
skipSpace = true;
break;
default:
if (!skipSpace || c != ' ') {
*(level == 0 ? tmplate : inner) += c;
skipSpace = false;
}
break;
}
}
*tmplate = tmplate->trimmed();
tmplate->replace("<>", "");
*inner = inner->trimmed();
// qDebug() << "EXTRACT TEMPLATE: " << *tmplate << *inner << " FROM " << type;
return !inner->isEmpty();
}
DumperHelper::TypeData DumperHelper::typeData(const QByteArray &typeName) const
{
TypeData td;
td.type = UnknownType;
const Type st = simpleType(typeName);
if (st != UnknownType) {
td.isTemplate = false;
td.type = st;
return td;
}
// Try template
td.isTemplate = extractTemplate(typeName, &td.tmplate, &td.inner);
if (!td.isTemplate)
return td;
// Check the template type QMap<X,Y> -> 'QMap'
td.type = simpleType(td.tmplate);
return td;
}
static QByteArray sizeofTypeExpression(const QByteArray &type)
{
if (type.endsWith('*'))
return "sizeof(void*)";
if (type.endsWith('>'))
return "sizeof(" + type + ')';
return "sizeof(" + gdbQuoteTypes(type) + ')';
}
// Format an expression to have the debugger query the
// size. Use size cache if possible
QByteArray DumperHelper::evaluationSizeofTypeExpression(const QByteArray &typeName) const
{
// Look up special size types
const SpecialSizeType st = specialSizeType(typeName);
if (st != SpecialSizeCount) {
if (const int size = m_specialSizes[st])
return QByteArray::number(size);
}
// Look up size cache
const SizeCache::const_iterator sit = m_sizeCache.constFind(typeName);
if (sit != m_sizeCache.constEnd())
return QByteArray::number(sit.value());
// Finally have the debugger evaluate
return sizeofTypeExpression(typeName);
}
DumperHelper::SpecialSizeType DumperHelper::specialSizeType(const QByteArray &typeName) const
{
if (isPointerType(typeName))
return PointerSize;
if (typeName == "int")
return IntSize;
if (typeName.startsWith("std::allocator"))
return StdAllocatorSize;
if (typeName.startsWith(m_qPointerPrefix))
return QPointerSize;
if (typeName.startsWith(m_qSharedPointerPrefix))
return QSharedPointerSize;
if (typeName.startsWith(m_qSharedDataPointerPrefix))
return QSharedDataPointerSize;
if (typeName.startsWith(m_qWeakPointerPrefix))
return QWeakPointerSize;
if (typeName.startsWith(m_qListPrefix))
return QListSize;
if (typeName.startsWith(m_qLinkedListPrefix))
return QLinkedListSize;
if (typeName.startsWith(m_qVectorPrefix))
return QVectorSize;
if (typeName.startsWith(m_qQueuePrefix))
return QQueueSize;
return SpecialSizeCount;
}
static inline bool isInteger(const QByteArray &n)
{
const int size = n.size();
if (!size)
return false;
for (int i = 0; i < size; i++)
if (!std::isdigit(n.at(i)))
return false;
return true;
}
// Return debugger expression to get the offset of a map node.
static inline QByteArray qMapNodeValueOffsetExpression(const QByteArray &type)
{
return "(size_t)&(('" + type + "'*)0)->value";
}
void DumperHelper::evaluationParameters(const WatchData &data,
const TypeData &td, QByteArray *inBuffer, QByteArrayList *extraArgsIn) const
{
enum { maxExtraArgCount = 4 };
QByteArrayList &extraArgs = *extraArgsIn;
// See extractTemplate for parameters
QByteArrayList inners = td.inner.split('@');
if (inners.at(0).isEmpty())
inners.clear();
for (int i = 0; i != inners.size(); ++i)
inners[i] = inners[i].simplified();
QByteArray outertype = td.isTemplate ? td.tmplate : data.type;
// adjust the data extract
if (outertype == m_qtNamespace + "QWidget")
outertype = m_qtNamespace + "QObject";
QByteArray inner = td.inner;
const QByteArray zero = "0";
extraArgs.clear();
if (!inners.empty()) {
// "generic" template dumpers: passing sizeof(argument)
// gives already most information the dumpers need
const int count = qMin(int(maxExtraArgCount), inners.size());
for (int i = 0; i < count; i++)
extraArgs.push_back(evaluationSizeofTypeExpression(inners.at(i)));
}
// Pad with zeros
while (extraArgs.size() < maxExtraArgCount)
extraArgs.push_back("0");
// in rare cases we need more or less:
switch (td.type) {
case QAbstractItemType:
if (data.dumperFlags.isEmpty())
qWarning("Internal error: empty dumper state '%s'.", data.iname.constData());
else
inner = data.dumperFlags.mid(1);
break;
case QObjectSlotType:
case QObjectSignalType: {
// we need the number out of something like
// iname="local.ob.slots.2" // ".deleteLater()"?
const int pos = data.iname.lastIndexOf('.');
const QByteArray slotNumber = data.iname.mid(pos + 1);
QTC_CHECK(slotNumber.toInt() != -1);
extraArgs[0] = slotNumber;
}
break;
case QMapType:
case QMultiMapType: {
QByteArray nodetype;
if (m_qtVersion >= 0x040500) {
nodetype = m_qtNamespace + "QMapNode";
nodetype += data.type.mid(outertype.size());
} else {
// FIXME: doesn't work for QMultiMap
nodetype = data.type + "::Node";
}
//qDebug() << "OUTERTYPE: " << outertype << " NODETYPE: " << nodetype
// << "QT VERSION" << m_qtVersion << ((4 << 16) + (5 << 8) + 0);
extraArgs[2] = evaluationSizeofTypeExpression(nodetype);
extraArgs[3] = qMapNodeValueOffsetExpression(nodetype);
}
break;
case QMapNodeType:
extraArgs[2] = evaluationSizeofTypeExpression(data.type);
extraArgs[3] = qMapNodeValueOffsetExpression(data.type);
break;
case StdVectorType:
//qDebug() << "EXTRACT TEMPLATE: " << outertype << inners;
if (inners.at(0) == "bool")
outertype = "std::vector::bool";
break;
case StdDequeType:
extraArgs[1] = "0";
break;
case StdStackType:
// remove 'std::allocator<...>':
extraArgs[1] = "0";
break;
case StdSetType:
// remove 'std::less<...>':
extraArgs[1] = "0";
// remove 'std::allocator<...>':
extraArgs[2] = "0";
break;
case StdMapType: {
// We need the offset of the second item in the value pair.
// We read the type of the pair from the allocator argument because
// that gets the constness "right" (in the sense that gdb/cdb can
// read it back: "std::allocator<std::pair<Key,Value> >"
// -> "std::pair<Key,Value>". Different debuggers have varying
// amounts of terminating blanks...
extraArgs[2].clear();
extraArgs[3] = "0";
QByteArray pairType = inners.at(3);
int bracketPos = pairType.indexOf('<');
if (bracketPos != -1)
pairType.remove(0, bracketPos + 1);
// We don't want the comparator and the allocator confuse gdb.
const char closingBracket = '>';
bracketPos = pairType.lastIndexOf(closingBracket);
if (bracketPos != -1)
bracketPos = pairType.lastIndexOf(closingBracket, bracketPos - pairType.size() - 1);
if (bracketPos != -1)
pairType.truncate(bracketPos + 1);
extraArgs[2] = "(size_t)&(('";
extraArgs[2] += pairType;
extraArgs[2] += "'*)0)->second";
}
break;
case StdStringType:
//qDebug() << "EXTRACT TEMPLATE: " << outertype << inners;
if (inners.at(0) == "char")
outertype = "std::string";
else if (inners.at(0) == "wchar_t")
outertype = "std::wstring";
qFill(extraArgs, zero);
break;
case UnknownType:
qWarning("Unknown type encountered in %s.\n", Q_FUNC_INFO);
break;
case SupportedType:
case QVectorType:
case QStackType:
case QObjectType:
case QWidgetType:
break;
}
// Look up expressions in the cache
if (!m_expressionCache.empty()) {
const ExpressionCache::const_iterator excCend = m_expressionCache.constEnd();
const QByteArrayList::iterator eend = extraArgs.end();
for (QByteArrayList::iterator it = extraArgs.begin(); it != eend; ++it) {
QByteArray &e = *it;
if (!e.isEmpty() && e != zero && !isInteger(e)) {
const ExpressionCache::const_iterator eit = m_expressionCache.constFind(e);
if (eit != excCend)
e = eit.value();
}
}
}
inBuffer->clear();
inBuffer->append(outertype);
inBuffer->append('\0');
inBuffer->append(data.iname);
inBuffer->append('\0');
inBuffer->append(data.exp);
inBuffer->append('\0');
inBuffer->append(inner);
inBuffer->append('\0');
inBuffer->append(data.iname);
inBuffer->append('\0');
if (debug)
qDebug() << '\n' << Q_FUNC_INFO << '\n' << data.toString() << "\n-->" << outertype << td.type << extraArgs;
}
QDebug operator<<(QDebug in, const DumperHelper::TypeData &d)
{
QDebug nsp = in.nospace();
nsp << " type=" << d.type << " tpl=" << d.isTemplate;
if (d.isTemplate)
nsp << d.tmplate << '<' << d.inner << '>';
return in;
}
static bool isAccessSpecifier(const QByteArray &ba)
{
return ba == "private" || ba == "protected" || ba == "public";
}
// reads a MI-encoded item frome the consolestream
static bool parseConsoleStream(const GdbResponse &response, GdbMi *contents)
{
QByteArray out = response.consoleStreamOutput;
int markerPos = out.indexOf('"') + 1; // position of 'success marker'
if (markerPos == 0 || out.at(markerPos) == 'f') { // 't' or 'f'
// custom dumper produced no output
return false;
}
out = out.mid(markerPos + 1);
out = out.left(out.lastIndexOf('"'));
// optimization: dumper output never needs real C unquoting
out.replace('\\', "");
contents->fromStringMultiple(out);
//qDebug() << "CONTENTS" << contents->toString(true);
return contents->isValid();
}
void GdbEngine::updateLocalsClassic()
{
PRECONDITION;
//m_pendingWatchRequests = 0;
m_pendingBreakpointRequests = 0;
m_processedNames.clear();
QByteArray level = QByteArray::number(currentFrame());
// '2' is 'list with type and value'
QByteArray cmd = "-stack-list-arguments 2 " + level + ' ' + level;
postCommand(cmd, Discardable,
CB(handleStackListArgumentsClassic));
// '2' is 'list with type and value'
postCommand("-stack-list-locals 2", Discardable,
CB(handleStackListLocalsClassic)); // stage 2/2
}
static inline QString msgRetrievingWatchData(int pending)
{
return GdbEngine::tr("Retrieving data for watch view (%n requests pending)...", 0, pending);
}
void GdbEngine::runDirectDebuggingHelperClassic(const WatchData &data, bool dumpChildren)
{
Q_UNUSED(dumpChildren)
QByteArray type = data.type;
QByteArray cmd;
if (type == "QString" || type.endsWith("::QString"))
cmd = "qdumpqstring (&(" + data.exp + "))";
else if (type == "QStringList" || type.endsWith("::QStringList"))
cmd = "qdumpqstringlist (&(" + data.exp + "))";
QVariant var;
var.setValue(data);
postCommand(cmd, Discardable, CB(handleDebuggingHelperValue3Classic), var);
showStatusMessage(msgRetrievingWatchData(m_uncompleted.size()), 10000);
}
void GdbEngine::runDebuggingHelperClassic(const WatchData &data0, bool dumpChildren)
{
PRECONDITION;
if (m_debuggingHelperState != DebuggingHelperAvailable) {
runDirectDebuggingHelperClassic(data0, dumpChildren);
return;
}
WatchData data = data0;
// Avoid endless loops created by faulty dumpers.
QByteArray processedName = QByteArray::number(dumpChildren) + '-' + data.iname;
if (m_processedNames.contains(processedName)) {
showMessage(
_("<Breaking endless loop for " + data.iname + '>'), LogMiscInput);
data.setAllUnneeded();
data.setValue(_("<unavailable>"));
data.setHasChildren(false);
insertData(data);
return;
}
m_processedNames.insert(processedName);
QByteArray params;
QList<QByteArray> extraArgs;
const DumperHelper::TypeData td = m_dumperHelper.typeData(data0.type);
m_dumperHelper.evaluationParameters(data, td, &params, &extraArgs);
//int protocol = (data.iname.startsWith("watch") && data.type == "QImage") ? 3 : 2;
//int protocol = data.iname.startsWith("watch") ? 3 : 2;
const int protocol = 2;
//int protocol = isDisplayedIName(data.iname) ? 3 : 2;
QByteArray addr;
if (data.address)
addr = "(void*)" + data.hexAddress();
else if (data.exp.isEmpty()) // happens e.g. for QAbstractItem
addr = QByteArray(1, '0');
else
addr = "&(" + data.exp + ')';
sendWatchParameters(params);
QByteArray cmd = "call (void*)qDumpObjectData440("
+ QByteArray::number(protocol)
+ ",0,"
+ addr
+ ','
+ (dumpChildren ? '1' : '0');
foreach (const QByteArray &ex, extraArgs)
cmd += ',' + ex;
cmd += ')';
postCommand(cmd, Discardable | NonCriticalResponse);
showStatusMessage(msgRetrievingWatchData(m_uncompleted.size()), 10000);
// retrieve response
postCommand("p (char*)&qDumpOutBuffer", Discardable,
CB(handleDebuggingHelperValue2Classic), qVariantFromValue(data));
}
void GdbEngine::createGdbVariableClassic(const WatchData &data)
{
PRECONDITION;
postCommand("-var-delete \"" + data.iname + '"', Discardable);
QByteArray exp = data.exp;
if (exp.isEmpty() && data.address)
exp = "*(" + gdbQuoteTypes(data.type) + "*)" + data.hexAddress();
QVariant val = QVariant::fromValue<WatchData>(data);
postCommand("-var-create \"" + data.iname + "\" * \"" + exp + '"',
Discardable, CB(handleVarCreate), val);
}
void GdbEngine::updateSubItemClassic(const WatchData &data0)
{
PRECONDITION;
WatchData data = data0;
if (debugSubItem)
qDebug() << "UPDATE SUBITEM:" << data.toString();
QTC_ASSERT(data.isValid(), return);
// in any case we need the type first
if (data.isTypeNeeded()) {
// This should only happen if we don't have a variable yet.
// Let's play safe, though.
if (!data.variable.isEmpty()) {
// Update: It does so for out-of-scope watchers.
# if 1
qDebug() << "FIXME: GdbEngine::updateSubItem:"
<< data.toString() << "should not happen";
# else
data.setType(WatchData::msgNotInScope());
data.setValue(WatchData::msgNotInScope());
data.setHasChildren(false);
insertData(data);
return;
# endif
}
// The WatchVarCreate handler will receive type information
// and re-insert a WatchData item with correct type, so
// we will not re-enter this bit.
// FIXME: Concurrency issues?
createGdbVariableClassic(data);
return;
}
// We should have a type now. This is relied upon further below.
QTC_ASSERT(!data.type.isEmpty(), return);
// A common case that can be easily solved.
if (data.isChildrenNeeded() && isPointerType(data.type)
&& !hasDebuggingHelperForType(data.type)) {
// We sometimes know what kind of children pointers have.
if (debugSubItem)
qDebug() << "IT'S A POINTER";
if (debuggerCore()->boolSetting(AutoDerefPointers)) {
// Try automatic dereferentiation
data.exp = "(*(" + data.exp + "))";
data.type = data.type + '.'; // FIXME: fragile HACK to avoid recursion
if (data.value.startsWith(QLatin1String("0x")))
data.value.insert(0, QLatin1Char('@'));
insertData(data);
} else {
data.setChildrenUnneeded();
insertData(data);
WatchData data1;
data1.iname = data.iname + ".*";
data1.name = QLatin1Char('*') + data.name;
data1.exp = "(*(" + data.exp + "))";
data1.type = stripPointerType(data.type);
data1.setValueNeeded();
data1.setChildrenUnneeded();
insertData(data1);
}
return;
}
if (data.isValueNeeded() && hasDebuggingHelperForType(data.type)) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: CUSTOMVALUE";
runDebuggingHelperClassic(data,
watchHandler()->isExpandedIName(data.iname));
return;
}
/*
if (data.isValueNeeded() && data.exp.isEmpty()) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: NO EXPRESSION?";
data.setError("<no expression given>");
insertData(data);
return;
}
*/
if (data.isValueNeeded() && data.variable.isEmpty()) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: VARIABLE NEEDED FOR VALUE";
createGdbVariableClassic(data);
// the WatchVarCreate handler will re-insert a WatchData
// item, with valueNeeded() set.
return;
}
if (data.isValueNeeded()) {
QTC_ASSERT(!data.variable.isEmpty(), return); // tested above
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: VALUE";
QByteArray cmd = "-var-evaluate-expression \"" + data.iname + '"';
postCommand(cmd, Discardable,
CB(handleEvaluateExpressionClassic), QVariant::fromValue(data));
return;
}
if (data.isChildrenNeeded() && hasDebuggingHelperForType(data.type)) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: CUSTOMVALUE WITH CHILDREN";
runDebuggingHelperClassic(data, true);
return;
}
if (data.isChildrenNeeded() && data.variable.isEmpty()) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: VARIABLE NEEDED FOR CHILDREN";
createGdbVariableClassic(data);
// the WatchVarCreate handler will re-insert a WatchData
// item, with childrenNeeded() set.
return;
}
if (data.isChildrenNeeded()) {
QTC_ASSERT(!data.variable.isEmpty(), return); // tested above
QByteArray cmd = "-var-list-children --all-values \"" + data.variable + '"';
postCommand(cmd, Discardable,
CB(handleVarListChildrenClassic), QVariant::fromValue(data));
return;
}
if (data.isHasChildrenNeeded() && hasDebuggingHelperForType(data.type)) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: CUSTOMVALUE WITH CHILDREN";
runDebuggingHelperClassic(data, watchHandler()->isExpandedIName(data.iname));
return;
}
//#if !X
if (data.isHasChildrenNeeded() && data.variable.isEmpty()) {
if (debugSubItem)
qDebug() << "UPDATE SUBITEM: VARIABLE NEEDED FOR CHILDCOUNT";
createGdbVariableClassic(data);
// the WatchVarCreate handler will re-insert a WatchData
// item, with childrenNeeded() set.
return;
}
//#endif
if (data.isHasChildrenNeeded()) {
QTC_ASSERT(!data.variable.isEmpty(), return); // tested above
QByteArray cmd = "-var-list-children --all-values \"" + data.variable + '"';
postCommand(cmd, Discardable,
CB(handleVarListChildrenClassic), QVariant::fromValue(data));
return;
}
qDebug() << "FIXME: UPDATE SUBITEM:" << data.toString();
QTC_ASSERT(false, return);
}
void GdbEngine::handleDebuggingHelperValue2Classic(const GdbResponse &response)
{
PRECONDITION;
WatchData data = response.cookie.value<WatchData>();
QTC_ASSERT(data.isValid(), return);
// The real dumper might have aborted without giving any answers.
// Remove traces of the question, too.
if (m_cookieForToken.contains(response.token - 1)) {
m_cookieForToken.remove(response.token - 1);
showMessage(_("DETECTING LOST COMMAND %1").arg(response.token - 1));
// --m_pendingWatchRequests;
data.setError(WatchData::msgNotInScope());
insertData(data);
return;
}
//qDebug() << "CUSTOM VALUE RESULT:" << response.toString();
//qDebug() << "FOR DATA:" << data.toString() << response.resultClass;
if (response.resultClass != GdbResultDone) {
qDebug() << "STRANGE CUSTOM DUMPER RESULT DATA:" << data.toString();
return;
}
GdbMi contents;
if (!parseConsoleStream(response, &contents)) {
data.setError(WatchData::msgNotInScope());
insertData(data);
return;
}
setWatchDataType(data, response.data.findChild("type"));
setWatchDataDisplayedType(data, response.data.findChild("displaytype"));
QList<WatchData> list;
parseWatchData(watchHandler()->expandedINames(), data, contents, &list);
//for (int i = 0; i != list.size(); ++i)
// qDebug() << "READ: " << list.at(i).toString();
foreach (const WatchData &data, list)
insertData(data);
}
void GdbEngine::handleDebuggingHelperValue3Classic(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
WatchData data = response.cookie.value<WatchData>();
QByteArray out = response.consoleStreamOutput;
while (out.endsWith(' ') || out.endsWith('\n'))
out.chop(1);
QList<QByteArray> list = out.split(' ');
if (list.isEmpty()) {
data.setError(WatchData::msgNotInScope());
data.setAllUnneeded();
insertData(data);
} else if (data.type == "QString"
|| data.type.endsWith("::QString")) {
QList<QByteArray> list = out.split(' ');
QString str;
int l = out.isEmpty() ? 0 : list.size();
for (int i = 0; i < l; ++i)
str.append(list.at(i).toInt());
data.setValue(QLatin1Char('"') + str + QLatin1Char('"'));
data.setHasChildren(false);
data.setAllUnneeded();
insertData(data);
} else if (data.type == "QStringList"
|| data.type.endsWith("::QStringList")) {
if (out.isEmpty()) {
data.setValue(tr("<0 items>"));
data.setHasChildren(false);
data.setAllUnneeded();
insertData(data);
} else {
int l = list.size();
//: In string list
data.setValue(tr("<%n items>", 0, l));
data.setHasChildren(!list.empty());
data.setAllUnneeded();
insertData(data);
for (int i = 0; i < l; ++i) {
WatchData data1;
data1.name = _("[%1]").arg(i);
data1.type = data.type.left(data.type.size() - 4);
data1.iname = data.iname + '.' + QByteArray::number(i);
const QByteArray &addressSpec = list.at(i);
if (addressSpec.startsWith("0x"))
data.setHexAddress(addressSpec);
else
data.dumperFlags = addressSpec; // Item model dumpers pull tricks
data1.exp = "((" + gdbQuoteTypes(data1.type) + "*)" + addressSpec + ')';
data1.setHasChildren(false);
data1.setValueNeeded();
QByteArray cmd = "qdumpqstring (" + data1.exp + ')';
QVariant var;
var.setValue(data1);
postCommand(cmd, Discardable,
CB(handleDebuggingHelperValue3Classic), var);
}
}
} else {
data.setError(WatchData::msgNotInScope());
data.setAllUnneeded();
insertData(data);
}
} else {
WatchData data = response.cookie.value<WatchData>();
data.setError(WatchData::msgNotInScope());
data.setAllUnneeded();
insertData(data);
}
}
void GdbEngine::tryLoadDebuggingHelpersClassic()
{
if (m_forceAsyncModel)
return;
PRECONDITION;
if (dumperHandling() == GdbEngine::DumperNotAvailable) {
// Load at least gdb macro based dumpers.
m_debuggingHelperState = DebuggingHelperLoadTried;
postCommand(Utils::FileReader::fetchQrc(_(":/gdb/gdbmacros.txt")));
return;
}
if (debugPending)
qDebug() << "TRY LOAD CUSTOM DUMPERS";
m_debuggingHelperState = DebuggingHelperUnavailable;
if (!checkDebuggingHelpersClassic())
return;
m_debuggingHelperState = DebuggingHelperLoadTried;
// Do not use STRINGIFY for RTLD_NOW as we really want to expand that to a number.
#if defined(Q_OS_WIN)
// We are using Python on Windows.
QTC_CHECK(false);
#elif defined(Q_OS_MAC)
QByteArray dlopenLib = startParameters().dumperLibrary.toLocal8Bit();
//postCommand("sharedlibrary libc"); // for malloc
//postCommand("sharedlibrary libdl"); // for dlopen
const QByteArray flag = QByteArray::number(RTLD_NOW);
postCommand("call (void)dlopen(\"" + GdbMi::escapeCString(dlopenLib)
+ "\", " + flag + ")",
CB(handleDebuggingHelperSetup));
//postCommand("sharedlibrary " + dotEscape(dlopenLib));
#else
QByteArray dlopenLib = startParameters().dumperLibrary.toLocal8Bit();
//postCommand("p dlopen");
const QByteArray flag = QByteArray::number(RTLD_NOW);
postCommand("sharedlibrary libc"); // for malloc
postCommand("sharedlibrary libdl"); // for dlopen
postCommand("call (void*)dlopen(\"" + GdbMi::escapeCString(dlopenLib)
+ "\", " + flag + ")",
CB(handleDebuggingHelperSetup));
// Some older systems like CentOS 4.6 prefer this:
postCommand("call (void*)__dlopen(\"" + GdbMi::escapeCString(dlopenLib)
+ "\", " + flag + ")",
CB(handleDebuggingHelperSetup));
postCommand("sharedlibrary " + dotEscape(dlopenLib));
#endif
// Retrieve list of dumpable classes.
postCommand("call (void*)qDumpObjectData440(1,0,0,0,0,0,0,0)");
postCommand("p (char*)&qDumpOutBuffer", CB(handleQueryDebuggingHelperClassic));
}
// Called from CoreAdapter and AttachAdapter
void GdbEngine::updateAllClassic()
{
PRECONDITION;
if (debugPending)
qDebug() << "UPDATING ALL\n";
QTC_ASSERT(state() == InferiorUnrunnable || state() == InferiorStopOk,
qDebug() << state());
tryLoadDebuggingHelpersClassic();
reloadModulesInternal();
postCommand("-stack-list-frames", Discardable,
CB(handleStackListFrames),
QVariant::fromValue<StackCookie>(StackCookie(false, true)));
stackHandler()->setCurrentIndex(0);
if (supportsThreads())
postCommand("-thread-list-ids", Discardable, CB(handleThreadListIds), 0);
reloadRegisters();
updateLocals();
}
void GdbEngine::setDebuggingHelperStateClassic(DebuggingHelperState s)
{
PRECONDITION;
m_debuggingHelperState = s;
}
void GdbEngine::handleStackListArgumentsClassic(const GdbResponse &response)
{
PRECONDITION;
// stage 1/2
// Linux:
// 12^done,stack-args=
// [frame={level="0",args=[
// {name="argc",type="int",value="1"},
// {name="argv",type="char **",value="(char **) 0x7..."}]}]
// Mac:
// 78^done,stack-args=
// {frame={level="0",args={
// varobj=
// {exp="this",value="0x38a2fab0",name="var21",numchild="3",
// type="CurrentDocumentFind * const",typecode="PTR",
// dynamic_type="",in_scope="true",block_start_addr="0x3938e946",
// block_end_addr="0x3938eb2d"},
// varobj=
// {exp="before",value="@0xbfffb9f8: {d = 0x3a7f2a70}",
// name="var22",numchild="1",type="const QString ...} }}}
//
// In both cases, iterating over the children of stack-args/frame/args
// is ok.
m_currentFunctionArgs.clear();
if (response.resultClass == GdbResultDone) {
const GdbMi list = response.data.findChild("stack-args");
const GdbMi frame = list.findChild("frame");
const GdbMi args = frame.findChild("args");
m_currentFunctionArgs = args.children();
} else {
// Seems to occur on "RedHat 4 based Linux" gdb 7.0.1:
// ^error,msg="Cannot access memory at address 0x0"
showMessage(_("UNEXPECTED RESPONSE: ") + QLatin1String(response.toString()));
}
}
void GdbEngine::handleStackListLocalsClassic(const GdbResponse &response)
{
PRECONDITION;
// stage 2/2
// There could be shadowed variables
QList<GdbMi> locals = response.data.findChild("locals").children();
locals += m_currentFunctionArgs;
QMap<QByteArray, int> seen;
// If desired, retrieve list of uninitialized variables looking at
// the current frame. This is invoked first time after a stop from
// handleStop1, which passes on the frame as cookie. The whole stack
// is not known at this point.
QStringList uninitializedVariables;
if (debuggerCore()->action(UseCodeModel)->isChecked()) {
const StackFrame frame =
response.cookie.canConvert<Debugger::Internal::StackFrame>()
? qvariant_cast<Debugger::Internal::StackFrame>(response.cookie)
: stackHandler()->currentFrame();
if (frame.isUsable())
getUninitializedVariables(debuggerCore()->cppCodeModelSnapshot(),
frame.function, frame.file, frame.line,
&uninitializedVariables);
}
WatchHandler *handler = watchHandler();
insertData(*handler->findData("local"));
foreach (const GdbMi &item, locals) {
const WatchData data = localVariable(item, uninitializedVariables, &seen);
if (data.isValid())
insertData(data);
}
if (!m_resultVarName.isEmpty()) {
WatchData rd;
rd.iname = "return.0";
rd.name = QLatin1String("return");
rd.exp = m_resultVarName;
insertData(rd);
}
handler->updateWatchers();
}
static void showQtDumperLibraryWarning(const QString &details)
{
QMessageBox dialog(debuggerCore()->mainWindow());
QPushButton *qtPref = dialog.addButton(DebuggerCore::tr("Open Qt Options"),
QMessageBox::ActionRole);
QPushButton *helperOff = dialog.addButton(DebuggerCore::tr("Turn off Helper Usage"),
QMessageBox::ActionRole);
QPushButton *justContinue = dialog.addButton(DebuggerCore::tr("Continue Anyway"),
QMessageBox::AcceptRole);
dialog.setDefaultButton(justContinue);
dialog.setWindowTitle(DebuggerCore::tr("Debugging Helper Missing"));
dialog.setText(DebuggerCore::tr("The debugger could not load the debugging helper library."));
dialog.setInformativeText(DebuggerCore::tr(
"The debugging helper is used to nicely format the values of some Qt "
"and Standard Library data types. "
"It must be compiled for each used Qt version separately. "
"In the Qt Creator Build and Run preferences page, select a Qt version, "
"expand the Details section and click Build All."));
if (!details.isEmpty())
dialog.setDetailedText(details);
#if defined(Q_OS_MAC) && QT_VERSION >= 0x050000
dialog.setWindowModality(Qt::WindowModal);
#endif
dialog.exec();
if (dialog.clickedButton() == qtPref) {
Core::ICore::showOptionsDialog(
ProjectExplorer::Constants::PROJECTEXPLORER_SETTINGS_CATEGORY,
QtSupport::Constants::QTVERSION_SETTINGS_PAGE_ID);
} else if (dialog.clickedButton() == helperOff) {
debuggerCore()->action(UseDebuggingHelpers)->setValue(qVariantFromValue(false), false);
}
}
bool GdbEngine::checkDebuggingHelpersClassic()
{
PRECONDITION;
if (!debuggerCore()->boolSetting(UseDebuggingHelpers))
return false;
const QString lib = startParameters().dumperLibrary;
if (QFileInfo(lib).exists())
return true;
const QStringList &locations = startParameters().dumperLibraryLocations;
const QString loc = locations.join(QLatin1String(", "));
const QString msg = tr("The debugging helper library was not found at %1.")
.arg(loc);
showMessage(msg);
// This can happen for remote debugging.
if (!locations.isEmpty())
showQtDumperLibraryWarning(msg); // This might build the library.
return QFileInfo(lib).exists();
}
void GdbEngine::handleQueryDebuggingHelperClassic(const GdbResponse &response)
{
const double dumperVersionRequired = 1.0;
//qDebug() << "DATA DUMPER TRIAL:" << response.toString();
GdbMi contents;
QTC_ASSERT(parseConsoleStream(response, &contents), qDebug() << response.toString());
const bool ok = m_dumperHelper.parseQuery(contents)
&& m_dumperHelper.typeCount();
if (ok) {
// Get version and sizes from dumpers. Expression cache
// currently causes errors.
const double dumperVersion = getDumperVersion(contents);
if (dumperVersion < dumperVersionRequired) {
showQtDumperLibraryWarning(
DumperHelper::msgDumperOutdated(dumperVersionRequired, dumperVersion));
m_debuggingHelperState = DebuggingHelperUnavailable;
return;
}
m_debuggingHelperState = DebuggingHelperAvailable;
const QString successMsg = tr("Dumper version %1, %n custom dumpers found.",
0, m_dumperHelper.typeCount()).arg(dumperVersion);
showStatusMessage(successMsg);
// Sanity check for Qt version of dumpers and debuggee.
QByteArray ns = m_dumperHelper.qtNamespace();
postCommand("-var-create A@ * '" + ns + "qVersion'()",
CB(handleDebuggingHelperVersionCheckClassic));
postCommand("-var-delete A@");
} else {
// Retry if thread has not terminated yet.
m_debuggingHelperState = DebuggingHelperUnavailable;
showStatusMessage(tr("Debugging helpers not found."));
}
//qDebug() << m_dumperHelper.toString(true);
//qDebug() << m_availableSimpleDebuggingHelpers << "DATA DUMPERS AVAILABLE";
}
void GdbEngine::handleDebuggingHelperVersionCheckClassic(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
QString value = _(response.data.findChild("value").data());
QString debuggeeQtVersion = value.section(QLatin1Char('"'), 1, 1);
QString dumperQtVersion = QLatin1String(m_dumperHelper.qtVersionString());
if (debuggeeQtVersion.isEmpty()) {
showMessage(_("DUMPER VERSION CHECK SKIPPED, NO qVersion() OUTPUT IN")
+ QLatin1String(response.toString()));
} else if (dumperQtVersion.isEmpty()) {
showMessage(_("DUMPER VERSION CHECK SKIPPED, NO VERSION STRING"));
} else if (dumperQtVersion != debuggeeQtVersion) {
showMessageBox(QMessageBox::Warning,
tr("Debugging helpers: Qt version mismatch"),
tr("The Qt version used to build the debugging helpers (%1) "
"does not match the Qt version used to build the debugged "
"application (%2).\nThis might yield incorrect results.")
.arg(dumperQtVersion).arg(debuggeeQtVersion));
} else {
showMessage(_("DUMPER VERSION CHECK SUCCESSFUL: ")
+ dumperQtVersion);
}
} else {
showMessage(QLatin1String("DUMPER VERSION CHECK NOT COMPLETED"));
}
}
void GdbEngine::handleVarListChildrenHelperClassic(const GdbMi &item,
const WatchData &parent, int sortId)
{
//qDebug() << "VAR_LIST_CHILDREN: PARENT" << parent.toString();
//qDebug() << "VAR_LIST_CHILDREN: ITEM" << item.toString();
QByteArray exp = item.findChild("exp").data();
QByteArray name = item.findChild("name").data();
if (isAccessSpecifier(exp)) {
// Suppress 'private'/'protected'/'public' level.
WatchData data;
data.variable = name;
data.iname = parent.iname;
//data.iname = data.variable;
data.exp = parent.exp;
data.setTypeUnneeded();
data.setValueUnneeded();
data.setHasChildrenUnneeded();
data.setChildrenUnneeded();
QByteArray cmd = "-var-list-children --all-values \"" + data.variable + '"';
//iname += '.' + exp;
postCommand(cmd, Discardable,
CB(handleVarListChildrenClassic), QVariant::fromValue(data));
} else if (!startsWithDigit(QLatin1String(exp))
&& item.findChild("numchild").data() == "0") {
// Happens for structs without data, e.g. interfaces.
WatchData data;
data.name = _(exp);
data.iname = parent.iname + '.' + data.name.toLatin1();
data.variable = name;
setWatchDataType(data, item.findChild("type"));
setWatchDataValue(data, item);
setWatchDataAddress(data, item.findChild("addr"), GdbMi());
data.setHasChildren(false);
insertData(data);
} else if (parent.iname.endsWith('.')) {
// Happens with anonymous unions.
WatchData data;
data.iname = name;
QByteArray cmd = "-var-list-children --all-values \"" + data.variable + '"';
postCommand(cmd, Discardable,
CB(handleVarListChildrenClassic), QVariant::fromValue(data));
} else if (exp == "staticMetaObject") {
// && item.findChild("type").data() == "const QMetaObject")
// FIXME: Namespaces?
// { do nothing } FIXME: make configurable?
// special "clever" hack to avoid clutter in the GUI.
// I am not sure this is a good idea...
} else {
// Suppress 'private'/'protected'/'public' level.
WatchData data;
data.iname = parent.iname + '.' + exp;
data.variable = name;
data.sortId = sortId;
setWatchDataType(data, item.findChild("type"));
setWatchDataValue(data, item);
setWatchDataAddress(data, item.findChild("addr"), GdbMi());
setWatchDataChildCount(data, item.findChild("numchild"));
if (!watchHandler()->isExpandedIName(data.iname))
data.setChildrenUnneeded();
data.name = _(exp);
if (data.name == QLatin1String(data.type)) {
if (isPointerType(parent.type)) {
data.exp = "*(" + parent.exp + ')';
data.name = _("*") + parent.name;
} else {
// A type we derive from? gdb crashes when creating variables here
data.exp = parent.exp;
}
} else if (exp.startsWith('*')) {
// A pointer
data.exp = "*(" + parent.exp + ')';
} else if (startsWithDigit(data.name)) {
// An array. No variables needed?
data.name = QLatin1Char('[') + data.name + QLatin1Char(']');
data.exp = parent.exp + '[' + exp + ']';
} else if (0 && parent.name.endsWith(QLatin1Char('.'))) {
// Happens with anonymous unions
data.exp = parent.exp + data.name.toLatin1();
//data.name = "<anonymous union>";
} else if (exp.isEmpty()) {
// Happens with anonymous unions
data.exp = parent.exp;
data.name = tr("<n/a>");
data.iname = parent.iname + ".@";
data.type = tr("<anonymous union>").toUtf8();
} else {
// A structure. Hope there's nothing else...
data.exp = '(' + parent.exp + ")." + data.name.toLatin1();
}
if (hasDebuggingHelperForType(data.type)) {
// we do not trust gdb if we have a custom dumper
data.setValueNeeded();
data.setHasChildrenNeeded();
}
//qDebug() << "VAR_LIST_CHILDREN: PARENT 3" << parent.toString();
//qDebug() << "VAR_LIST_CHILDREN: APPENDEE" << data.toString();
insertData(data);
}
}
void GdbEngine::handleVarListChildrenClassic(const GdbResponse &response)
{
//WatchResultCounter dummy(this, WatchVarListChildren);
WatchData data = response.cookie.value<WatchData>();
if (!data.isValid())
return;
if (response.resultClass == GdbResultDone) {
//qDebug() << "VAR_LIST_CHILDREN: PARENT" << data.toString();
QList<GdbMi> children = response.data.findChild("children").children();
if (children.isEmpty()) {
// happens e.g. if no debug information is present or
// if the class really has no children
WatchData data1;
data1.iname = data.iname + ".child";
//: About variable's value
data1.value = tr("<no information>");
data1.hasChildren = false;
data1.setAllUnneeded();
insertData(data1);
data.setAllUnneeded();
insertData(data);
} else {
if (data.variable.endsWith("private")
|| data.variable.endsWith("protected")
|| data.variable.endsWith("public")) {
// this skips the spurious "public", "private" etc levels
// gdb produces
} else {
data.setChildrenUnneeded();
insertData(data);
}
for (int i = 0; i != children.size(); ++i)
handleVarListChildrenHelperClassic(children.at(i), data, i);
}
} else {
data.setError(QString::fromLocal8Bit(response.data.findChild("msg").data()));
}
}
void GdbEngine::handleEvaluateExpressionClassic(const GdbResponse &response)
{
WatchData data = response.cookie.value<WatchData>();
QTC_ASSERT(data.isValid(), qDebug() << "HUH?");
if (response.resultClass == GdbResultDone) {
//if (col == 0)
// data.name = response.data.findChild("value").data();
//else
setWatchDataValue(data, response.data);
} else {
data.setError(QString::fromLocal8Bit(response.data.findChild("msg").data()));
}
//qDebug() << "HANDLE EVALUATE EXPRESSION:" << data.toString();
insertData(data);
//updateWatchModel2();
}
} // namespace Internal
} // namespace Debugger