gdbengine.cpp 135 KB
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/***************************************************************************
**
** This file is part of Qt Creator
**
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** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
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**
** Non-Open Source Usage
**
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** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
**
** GNU General Public License Usage
**
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** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception
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** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
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**
***************************************************************************/
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#include "gdbengine.h"

#include "debuggerconstants.h"
#include "debuggermanager.h"
#include "gdbmi.h"
#include "procinterrupt.h"

#include "disassemblerhandler.h"
#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
#include "stackhandler.h"
#include "watchhandler.h"

#include "startexternaldialog.h"
#include "attachexternaldialog.h"

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#include <utils/qtcassert.h>

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#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtCore/QTime>
#include <QtCore/QTimer>

#include <QtGui/QAction>
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
#include <QtGui/QToolTip>

#if defined(Q_OS_LINUX) || defined(Q_OS_MAC)
#include <unistd.h>
#include <dlfcn.h>
#endif

using namespace Debugger;
using namespace Debugger::Internal;
using namespace Debugger::Constants;

Q_DECLARE_METATYPE(Debugger::Internal::GdbMi);

//#define DEBUG_PENDING  1
//#define DEBUG_SUBITEM  1

#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
#   define PENDING_DEBUG(s) 
#endif

static const QString tooltipIName = "tooltip";

///////////////////////////////////////////////////////////////////////
//
// GdbCommandType
//
///////////////////////////////////////////////////////////////////////

enum GdbCommandType
{
    GdbInvalidCommand = 0,

    GdbShowVersion = 100,
    GdbFileExecAndSymbols,
    GdbQueryPwd,
    GdbQuerySources,
    GdbAsyncOutput2,
    GdbExecRun,
    GdbExecRunToFunction,
    GdbExecStep,
    GdbExecNext,
    GdbExecStepI,
    GdbExecNextI,
    GdbExecContinue,
    GdbExecFinish,
    GdbExecJumpToLine,
    GdbExecInterrupt,
    GdbInfoShared,
    GdbInfoProc,
    GdbQueryDataDumper1,
    GdbQueryDataDumper2,

    BreakCondition = 200,
    BreakEnablePending,
    BreakSetAnnotate,
    BreakDelete,
    BreakList,
    BreakIgnore,
    BreakInfo,
    BreakInsert,
    BreakInsert1,

    DisassemblerList = 300,

    ModulesList = 400,

    RegisterListNames = 500,
    RegisterListValues,

    StackSelectThread = 600,
    StackListThreads,
    StackListFrames,
    StackListLocals,
    StackListArguments,

    WatchVarAssign = 700,             // data changed by user
    WatchVarListChildren,
    WatchVarCreate,
    WatchEvaluateExpression,
    WatchToolTip,
    WatchDumpCustomSetup,
    WatchDumpCustomValue1,           // waiting for gdb ack
    WatchDumpCustomValue2,           // waiting for actual data
    WatchDumpCustomEditValue,
};

QString dotEscape(QString str)
{
    str.replace(' ', '.');
    str.replace('\\', '.');
    str.replace('/', '.');
    return str;
}

QString currentTime()
{
    return QTime::currentTime().toString("hh:mm:ss.zzz");
}

static int &currentToken()
{
    static int token = 0;
    return token;
}

static bool isSkippableFunction(const QString &funcName, const QString &fileName)
{
    if (fileName.endsWith("kernel/qobject.cpp"))
        return true;
    if (fileName.endsWith("kernel/moc_qobject.cpp"))
        return true;
    if (fileName.endsWith("kernel/qmetaobject.cpp"))
        return true;
    if (fileName.endsWith(".moc"))
        return true;

    if (funcName.endsWith("::qt_metacall"))
        return true;

    return false;
}

static bool isLeavableFunction(const QString &funcName, const QString &fileName)
{
    if (funcName.endsWith("QObjectPrivate::setCurrentSender"))
        return true;
    if (fileName.endsWith("kernel/qmetaobject.cpp")
            && funcName.endsWith("QMetaObject::methodOffset"))
        return true;
    if (fileName.endsWith("kernel/qobject.h"))
        return true;
    if (fileName.endsWith("kernel/qobject.cpp")
            && funcName.endsWith("QObjectConnectionListVector::at"))
        return true;
    if (fileName.endsWith("kernel/qobject.cpp")
            && funcName.endsWith("~QObject"))
        return true;
    if (fileName.endsWith("thread/qmutex.cpp"))
        return true;
    if (fileName.endsWith("thread/qthread.cpp"))
        return true;
    if (fileName.endsWith("thread/qthread_unix.cpp"))
        return true;
    if (fileName.endsWith("thread/qmutex.h"))
        return true;
    if (fileName.contains("thread/qbasicatomic"))
        return true;
    if (fileName.contains("thread/qorderedmutexlocker_p"))
        return true;
    if (fileName.contains("arch/qatomic"))
        return true;
    if (fileName.endsWith("tools/qvector.h"))
        return true;
    if (fileName.endsWith("tools/qlist.h"))
        return true;
    if (fileName.endsWith("tools/qhash.h"))
        return true;
    if (fileName.endsWith("tools/qmap.h"))
        return true;
    if (fileName.endsWith("tools/qstring.h"))
        return true;
    if (fileName.endsWith("global/qglobal.h"))
        return true;

    return false;
}


///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

GdbEngine::GdbEngine(DebuggerManager *parent)
{
    q = parent;
    qq = parent->engineInterface();
    init();
}

GdbEngine::~GdbEngine()
{
}

void GdbEngine::init()
{
    m_pendingRequests = 0;
    m_gdbVersion = 100;
    m_shared = 0;

    m_oldestAcceptableToken = -1;

    // Gdb Process interaction
    connect(&m_gdbProc, SIGNAL(error(QProcess::ProcessError)), this,
        SLOT(gdbProcError(QProcess::ProcessError)));
    connect(&m_gdbProc, SIGNAL(readyReadStandardOutput()), this,
        SLOT(readGdbStandardOutput()));
    connect(&m_gdbProc, SIGNAL(readyReadStandardError()), this,
        SLOT(readGdbStandardError()));
    connect(&m_gdbProc, SIGNAL(finished(int, QProcess::ExitStatus)), q,
        SLOT(exitDebugger()));

    // Output
    connect(this, SIGNAL(gdbResponseAvailable()),
        this, SLOT(handleResponse()), Qt::QueuedConnection);

    connect(this, SIGNAL(gdbOutputAvailable(QString,QString)),
        q, SLOT(showDebuggerOutput(QString,QString)),
        Qt::QueuedConnection);
    connect(this, SIGNAL(gdbInputAvailable(QString,QString)),
        q, SLOT(showDebuggerInput(QString,QString)),
        Qt::QueuedConnection);
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    connect(this, SIGNAL(applicationOutputAvailable(QString)),
        q, SLOT(showApplicationOutput(QString)),
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        Qt::QueuedConnection);
}

void GdbEngine::gdbProcError(QProcess::ProcessError error)
{
    QString msg;
    switch (error) {
        case QProcess::FailedToStart:
            msg = QString(tr("The Gdb process failed to start. Either the "
                "invoked program '%1' is missing, or you may have insufficient "
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                "permissions to invoke the program.")).arg(q->settings()->m_gdbCmd);
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            break;
        case QProcess::Crashed:
            msg = tr("The Gdb process crashed some time after starting "
                "successfully.");
            break;
        case QProcess::Timedout:
            msg = tr("The last waitFor...() function timed out. "
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
            break;
        case QProcess::WriteError:
            msg = tr("An error occurred when attempting to write "
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
            break;
        case QProcess::ReadError:
            msg = tr("An error occurred when attempting to read from "
                "the Gdb process. For example, the process may not be running.");
            break;
        default:
            msg = tr("An unknown error in the Gdb process occurred. "
                "This is the default return value of error().");
    }

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    q->showStatusMessage(msg);
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    QMessageBox::critical(q->mainWindow(), tr("Error"), msg);
    // act as if it was closed by the core
    q->exitDebugger();
}

static void skipSpaces(const char *&from, const char *to)
{
    while (from != to && QChar(*from).isSpace())
        ++from;
}

static inline bool isNameChar(char c)
{
    // could be 'stopped' or 'shlibs-added'
    return (c >= 'a' && c <= 'z') || c == '-';
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
    Q_UNUSED(to);
    // note that qDebug cuts off output after a certain size... (bug?)
    qDebug("\n>>>>> %s\n%s\n====\n%s\n<<<<<\n",
        qPrintable(currentTime()),
        qPrintable(QString(ba).trimmed()),
        qPrintable(to.trimmed()));
    //qDebug() << "";
    //qDebug() << qPrintable(currentTime())
    //    << " Reading response:  " << QString(ba).trimmed() << "\n";
}
#endif

static void skipTerminator(const char *&from, const char *to)
{
    skipSpaces(from, to);
    // skip '(gdb)'
    if (from[0] == '(' && from[1] == 'g' && from[3] == 'b' && from[4] == ')')
        from += 5;
    skipSpaces(from, to);
}

// called asyncronously as response to Gdb stdout output in
// gdbResponseAvailable()
void GdbEngine::handleResponse()
{
    static QTime lastTime;

    emit gdbOutputAvailable("            ", currentTime());
    emit gdbOutputAvailable("stdout:", m_inbuffer);

#if 0
    qDebug() // << "#### start response handling #### "
        << currentTime()
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
        << "buf: " << m_inbuffer.left(1500) << "..."
        //<< "buf: " << m_inbuffer
        << "size:" << m_inbuffer.size();
#else
    //qDebug() << "buf: " << m_inbuffer;
#endif

    lastTime = QTime::currentTime();

    while (1) {
        if (m_inbuffer.isEmpty())
            break;

        const char *from = m_inbuffer.constData();
        // FIXME: check for line ending in '\n(gdb)\n'
        const char *to = from + m_inbuffer.size();
        const char *inner;

        //const char *oldfrom = from;

        //skipSpaces(from, to);
        skipTerminator(from, to);
        int token = -1;

        // token is a sequence of numbers
        for (inner = from; inner != to; ++inner)
            if (*inner < '0' || *inner > '9')
                break;
        if (from != inner) {
            token = QString(QByteArray(from, inner - from)).toInt();
            from = inner;
            //qDebug() << "found token " << token;
        }

        if (from == to) {
            //qDebug() << "Returning: " << toString();
            break;
        }

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        if (token == -1 && *from != '&' && *from != '~' && *from != '*') {
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            // FIXME: On Linux the application's std::out is merged in here.
            // High risk of falsely interpreting this as MI output.
            // We assume that we _always_ use tokens, so not finding a token
            // is a positive indication for the presence of application output.
            QString s;
            while (from != to && *from != '\n')
                s += *from++;
            //qDebug() << "UNREQUESTED DATA " << s << " TAKEN AS APPLICATION OUTPUT";
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            //s += '\n';
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            m_inbuffer = QByteArray(from, to - from);
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            emit applicationOutputAvailable(s);
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            continue;
        }

        // next char decides kind of record
        const char c = *from++;
        //qDebug() << "CODE:" << c;

        switch (c) {
            case '*':
            case '+':
            case '=': {
                QByteArray asyncClass;
                for (; from != to; ++from) {
                    const char c = *from;
                    if (!isNameChar(c))
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                        break;
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                    asyncClass += *from;
                }
                //qDebug() << "ASYNCCLASS" << asyncClass;

                GdbMi record;
                while (from != to && *from == ',') {
                    ++from; // skip ','
                    GdbMi data;
                    data.parseResultOrValue(from, to);
                    if (data.isValid()) {
                        //qDebug() << "parsed response: " << data.toString();
                        record.m_children += data;
                        record.m_type = GdbMi::Tuple;
                    }
                }
                //dump(oldfrom, from, record.toString());
                skipTerminator(from, to);
                m_inbuffer = QByteArray(from, to - from);
                if (asyncClass == "stopped") {
                    handleAsyncOutput(record);
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                } else if (asyncClass == "running") {
                    // Archer has 'thread-id="all"' here
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                } else {
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                    qDebug() << "IGNORED ASYNC OUTPUT " << record.toString();
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                }
                break;
            }

            case '~':
            case '@':
            case '&': {
                QString data = GdbMi::parseCString(from, to);
                handleStreamOutput(data, c);
                //dump(oldfrom, from, record.toString());
                m_inbuffer = QByteArray(from, to - from);
                break;
            }

            case '#': {
                //qDebug() << "CUSTOM OUTPUT, TOKEN" << token;
                QString str;
                for (; from != to && *from >= '0' && *from <= '9'; ++from)
                    str += QLatin1Char(*from);
                ++from; // skip the ' '
                int len = str.toInt();
                QByteArray ba(from, len);
                from += len;
                m_inbuffer = QByteArray(from, to - from);
                m_customOutputForToken[token] += QString(ba);
                break;
            }

            case '^': {
                GdbResultRecord record;

                record.token = token;

                for (inner = from; inner != to; ++inner)
                    if (*inner < 'a' || *inner > 'z')
                        break;

                QByteArray resultClass(from, inner - from);

                if (resultClass == "done")
                    record.resultClass = GdbResultDone;
                else if (resultClass == "running")
                    record.resultClass = GdbResultRunning;
                else if (resultClass == "connected")
                    record.resultClass = GdbResultConnected;
                else if (resultClass == "error")
                    record.resultClass = GdbResultError;
                else if (resultClass == "exit")
                    record.resultClass = GdbResultExit;
                else
                    record.resultClass = GdbResultUnknown;

                from = inner;
                skipSpaces(from, to);
                if (from != to && *from == ',') {
                    ++from;
                    record.data.parseTuple_helper(from, to);
                    record.data.m_type = GdbMi::Tuple;
                    record.data.m_name = "data";
                }
                skipSpaces(from, to);
                skipTerminator(from, to);

                //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
                //qDebug() << "\nTARGET STREAM:" + m_pendingTargetStreamOutput;
                //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
                record.data.setStreamOutput("logstreamoutput",
                    m_pendingLogStreamOutput);
                record.data.setStreamOutput("targetstreamoutput",
                    m_pendingTargetStreamOutput);
                record.data.setStreamOutput("consolestreamoutput",
                    m_pendingConsoleStreamOutput);
                QByteArray custom = m_customOutputForToken[token];
                if (!custom.isEmpty())
                    record.data.setStreamOutput("customvaluecontents",
                        '{' + custom + '}');
                //m_customOutputForToken.remove(token);
                m_pendingLogStreamOutput.clear();
                m_pendingTargetStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();

                //dump(oldfrom, from, record.toString());
                m_inbuffer = QByteArray(from, to - from);
                handleResultRecord(record);
                break;
            }
            default: {
                qDebug() << "FIXME: UNKNOWN CODE: " << c << " IN " << m_inbuffer;
                m_inbuffer = QByteArray(from, to - from);
                break;
            }
        }
    }

    //qDebug() << "##### end response handling ####\n\n\n"
    //    << currentTime() << lastTime.msecsTo(QTime::currentTime());
    lastTime = QTime::currentTime();
}

#ifdef Q_OS_MAC
static void fixMac(QByteArray &out)
{
    // HACK: gdb on Mac mixes MI1 and MI2 syntax. Not nice.
    // it returns:   9^done,locals={{name="a"},{name="w"}}
    // instead of:   9^done,locals=[{name="a"},{name="w"}]
    if (!out.contains("locals={{name"))
        return;

    static const QByteArray termArray("(gdb) ");
    int pos = out.indexOf(termArray);
    if (pos == -1)
        return;

    int pos1 = out.indexOf("={{");
    if (pos1 == -1)
        return;

    int pos2 = out.indexOf("]]");
    if (pos2 == -1)
        return;

    if (pos1 < pos && pos2 < pos) {
        out[pos1 + 1] = '[';
        out[pos2 + 1] = ']';
    }
}
#endif

void GdbEngine::readGdbStandardError()
{
    QByteArray err = m_gdbProc.readAllStandardError();
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    emit applicationOutputAvailable(err);
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}

void GdbEngine::readGdbStandardOutput()
{
    // This is the function called whenever the Gdb process created
    // output. As a rule of thumb, stdout contains _real_ Gdb output
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    // as responses to our command
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    // and "spontaneous" events like messages on loaded shared libraries.
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    // OTOH, stderr contains application output produced by qDebug etc.
    // There is no organized way to pass application stdout output.
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    QByteArray out = m_gdbProc.readAllStandardOutput();

    //qDebug() << "\n\n\nPLUGIN OUT: '" <<  out.data() << "'\n\n\n";

    #ifdef Q_OS_MAC
    fixMac(out);
    #endif

    m_inbuffer.append(out);
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    //QTC_ASSERT(!m_inbuffer.isEmpty(), return);
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    char c = m_inbuffer[m_inbuffer.size() - 1];
    static const QByteArray termArray("(gdb) ");
    if (out.indexOf(termArray) == -1 && c != 10 && c != 13) {
        //qDebug() << "\n\nBuffer not yet filled, waiting for more data to arrive";
        //qDebug() << m_inbuffer.data() << m_inbuffer.size();
        //qDebug() << "\n\n";
        return;
    }

    emit gdbResponseAvailable();
}

void GdbEngine::interruptInferior()
{
    if (m_gdbProc.state() == QProcess::NotRunning)
        return;

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    if (q->m_attachedPID > 0) {
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        if (interruptProcess(q->m_attachedPID))
            qq->notifyInferiorStopped();
        return;
    }

#ifdef Q_OS_MAC
    sendCommand("-exec-interrupt", GdbExecInterrupt);
    qq->notifyInferiorStopped();
#else
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    qDebug() << "CANNOT STOP INFERIOR" << m_gdbProc.pid();
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    if (interruptChildProcess(m_gdbProc.pid()))
        qq->notifyInferiorStopped();
#endif
}

void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
    int pid = pid0.toInt();
    if (pid == 0) {
        qDebug() << "Cannot parse PID from " << pid0;
        return;
    }
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    if (pid == q->m_attachedPID)
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        return;
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    q->m_attachedPID = pid;
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    qq->notifyInferiorPidChanged(pid); 
}

void GdbEngine::sendSynchronizedCommand(const QString & command,
    int type, const QVariant &cookie, bool needStop)
{
    sendCommand(command, type, cookie, needStop, true);
}

void GdbEngine::sendCommand(const QString &command, int type,
    const QVariant &cookie, bool needStop, bool synchronized)
{
    if (m_gdbProc.state() == QProcess::NotRunning) {
        //qDebug() << "NO GDB PROCESS RUNNING, CMD IGNORED:" << command;
        return;
    }

    bool temporarilyStopped = false;
    if (needStop && q->status() == DebuggerInferiorRunning) {
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        q->showStatusMessage(tr("Temporarily stopped"));
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        interruptInferior();
        temporarilyStopped = true;
    }

    ++currentToken();
    if (synchronized) {
        ++m_pendingRequests;
        PENDING_DEBUG("   TYPE " << type << " INCREMENTS PENDING TO: "
            << m_pendingRequests << command);
    } else {
        PENDING_DEBUG("   UNKNOWN TYPE " << type << " LEAVES PENDING AT: "
            << m_pendingRequests << command);
    }

    GdbCookie cmd;
    cmd.synchronized = synchronized;
    cmd.command = command;
    cmd.command = QString::number(currentToken()) + cmd.command;
    if (cmd.command.contains("%1"))
        cmd.command = cmd.command.arg(currentToken());
    cmd.type = type;
    cmd.cookie = cookie;

    m_cookieForToken[currentToken()] = cmd;

    //qDebug() << "";
    if (!command.isEmpty()) {
        //qDebug() << qPrintable(currentTime()) << "RUNNING  << cmd.command;
        m_gdbProc.write(cmd.command.toLatin1() + "\r\n");
        //emit gdbInputAvailable(QString(), "         " +  currentTime());
        emit gdbInputAvailable(QString(), "[" + currentTime() + "]    " + cmd.command);
        //emit gdbInputAvailable(QString(), cmd.command);
    }

    if (temporarilyStopped)
        sendCommand("-exec-continue");

    // slows down
    //qApp->processEvents();
}

void GdbEngine::handleResultRecord(const GdbResultRecord &record)
{
    //qDebug() << "TOKEN: " << record.token
    //    << " ACCEPTABLE: " << m_oldestAcceptableToken;
    //qDebug() << "";
    //qDebug() << "\nRESULT" << record.token << record.toString();

    int token = record.token;
    if (token == -1)
        return;

    GdbCookie cmd = m_cookieForToken.take(token);

    // FIXME: this falsely rejects results from the custom dumper recognition
    // procedure, too...
    if (record.token < m_oldestAcceptableToken) {
        //qDebug() << "### SKIPPING OLD RESULT " << record.toString();
        //QMessageBox::information(m_mainWindow, tr("Skipped"), "xxx");
        return;
    }

#if 0
    qDebug() << "# handleOutput, "
        << "cmd type: " << cmd.type
        << "cmd synchronized: " << cmd.synchronized
        << "\n record: " << record.toString();
#endif

    // << "\n data: " << record.data.toString(true);

    if (cmd.type != GdbInvalidCommand)
        handleResult(record, cmd.type, cmd.cookie);

    if (cmd.synchronized) {
        --m_pendingRequests;
        PENDING_DEBUG("   TYPE " << cmd.type << " DECREMENTS PENDING TO: "
            << m_pendingRequests << cmd.command);
        if (m_pendingRequests == 0)
            updateWatchModel2();
    } else {
        PENDING_DEBUG("   UNKNOWN TYPE " << cmd.type << " LEAVES PENDING AT: "
            << m_pendingRequests << cmd.command);
    }
}

void GdbEngine::handleResult(const GdbResultRecord & record, int type,
    const QVariant & cookie)
{
    switch (type) {
        case GdbExecNext:
        case GdbExecStep:
        case GdbExecNextI:
        case GdbExecStepI:
        case GdbExecContinue:
        case GdbExecFinish:
            // evil code sharing
        case GdbExecRun:
            handleExecRun(record);
            break;
        case GdbInfoProc:
            handleInfoProc(record);
            break;

        case GdbShowVersion:
            handleShowVersion(record);
            break;
        case GdbFileExecAndSymbols:
            handleFileExecAndSymbols(record);
            break;
        case GdbExecRunToFunction:
            // that should be "^running". We need to handle the resulting
            // "Stopped"
            //handleExecRunToFunction(record);
            break;
        case GdbExecInterrupt:
            break;
        case GdbExecJumpToLine:
            handleExecJumpToLine(record);
            break;
        case GdbQueryPwd:
            handleQueryPwd(record);
            break;
        case GdbQuerySources:
            handleQuerySources(record);
            break;
        case GdbAsyncOutput2:
            handleAsyncOutput2(cookie.value<GdbMi>());
            break;
        case GdbInfoShared:
            handleInfoShared(record);
            break;
        case GdbQueryDataDumper1:
            handleQueryDataDumper1(record);
            break;
        case GdbQueryDataDumper2:
            handleQueryDataDumper2(record);
            break;

        case BreakList:
            handleBreakList(record);
            break;
        case BreakInsert:
            handleBreakInsert(record, cookie.toInt());
            break;
        case BreakInsert1:
            handleBreakInsert1(record, cookie.toInt());
            break;
        case BreakInfo:
            handleBreakInfo(record, cookie.toInt());
            break;
        case BreakEnablePending:
        case BreakDelete:
            // nothing
            break;
        case BreakIgnore:
            handleBreakIgnore(record, cookie.toInt());
            break;
        case BreakCondition:
            handleBreakCondition(record, cookie.toInt());
            break;

        case DisassemblerList:
            handleDisassemblerList(record, cookie.toString());
            break;

        case ModulesList:
            handleModulesList(record);
            break;

        case RegisterListNames:
            handleRegisterListNames(record);
            break;
        case RegisterListValues:
            handleRegisterListValues(record);
            break;

        case StackListFrames:
            handleStackListFrames(record);
            break;
        case StackListThreads:
            handleStackListThreads(record, cookie.toInt());
            break;
        case StackSelectThread:
            handleStackSelectThread(record, cookie.toInt());
            break;
        case StackListLocals:
            handleStackListLocals(record);
            break;
        case StackListArguments:
            handleStackListArguments(record);
            break;

        case WatchVarListChildren:
            handleVarListChildren(record, cookie.value<WatchData>());
            break;
        case WatchVarCreate:
            handleVarCreate(record, cookie.value<WatchData>());
            break;
        case WatchVarAssign:
            handleVarAssign();
            break;
        case WatchEvaluateExpression:
            handleEvaluateExpression(record, cookie.value<WatchData>());
            break;
        case WatchToolTip:
            handleToolTip(record, cookie.toString());
            break;
        case WatchDumpCustomValue1:
            handleDumpCustomValue1(record, cookie.value<WatchData>());
            break;
        case WatchDumpCustomValue2:
            handleDumpCustomValue2(record, cookie.value<WatchData>());
            break;
        case WatchDumpCustomSetup:
            handleDumpCustomSetup(record);
            break;

        default:
            qDebug() << "FIXME: GdbEngine::handleResult: "
                "should not happen" << type;
            break;
    }
}

void GdbEngine::executeDebuggerCommand(const QString &command)
{
    //createGdbProcessIfNeeded();
    if (m_gdbProc.state() == QProcess::NotRunning) {
        qDebug() << "NO GDB PROCESS RUNNING, PLAIN CMD IGNORED: " << command;
        return;
    }

    GdbCookie cmd;
    cmd.command = command;
    cmd.type = -1;

    //m_cookieForToken[currentToken()] = cmd;
    //++currentToken();

    //qDebug() << "";
    //qDebug() << currentTime() << "Running command:   " << cmd.command;
    emit gdbInputAvailable(QString(), cmd.command);
    m_gdbProc.write(cmd.command.toLatin1() + "\r\n");
}

void GdbEngine::handleQueryPwd(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as 'pwd'
    // is supported by MI
    //qDebug() << "PWD OUTPUT:" <<  record.toString();
    // Gdb responses _unless_ we get an error first.
    if (record.resultClass == GdbResultDone) {
#ifdef Q_OS_LINUX
        // "5^done,{logstreamoutput="pwd ",consolestreamoutput
        // ="Working directory /home/apoenitz/dev/work/test1.  "}
        m_pwd = record.data.findChild("consolestreamoutput").data();
        int pos = m_pwd.indexOf("Working directory");
        m_pwd = m_pwd.mid(pos + 18);
        m_pwd = m_pwd.trimmed();
        if (m_pwd.endsWith('.'))
            m_pwd.chop(1);
#endif
#ifdef Q_OS_WIN
        // ~"Working directory C:\\Users\\Thomas\\Documents\\WBTest3\\debug.\n"
        m_pwd = record.data.findChild("consolestreamoutput").data();
        m_pwd = m_pwd.trimmed();
#endif
        //qDebug() << "PWD RESULT:" <<  m_pwd;
    }
}

void GdbEngine::handleQuerySources(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
        m_shortToFullName.clear();
        m_fullToShortName.clear();
        // "^done,files=[{file="../../../../bin/gdbmacros/gdbmacros.cpp",
        // fullname="/data5/dev/ide/main/bin/gdbmacros/gdbmacros.cpp"},
        GdbMi files = record.data.findChild("files");
        foreach (const GdbMi &item, files.children()) {
            QString fileName = item.findChild("file").data();
            GdbMi fullName = item.findChild("fullname");
            QString full = fullName.data();
            #ifdef Q_OS_WIN
            full = QDir::cleanPath(full);
            #endif
            if (fullName.isValid() && QFileInfo(full).isReadable()) {
                //qDebug() << "STORING 2: " << fileName << full;
                m_shortToFullName[fileName] = full;
                m_fullToShortName[full] = fileName;
            }
        }
    }
}

void GdbEngine::handleInfoProc(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
        #if defined(Q_OS_MAC)
        //^done,process-id="85075"
        maybeHandleInferiorPidChanged(record.data.findChild("process-id").data());
        #endif

        #if defined(Q_OS_LINUX) || defined(Q_OS_WIN)
        // FIXME: use something more robust
        QRegExp re(QLatin1String("process (\\d+)"));
        QString data = record.data.findChild("consolestreamoutput").data();
        if (re.indexIn(data) != -1)
            maybeHandleInferiorPidChanged(re.cap(1));
        #endif
    }
}

void GdbEngine::handleInfoShared(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
        // let the modules handler do the parsing
        handleModulesList(record);
        QList<Module> modules = qq->modulesHandler()->modules();
        bool reloadNeeded = false;
        foreach (const Module &module, modules) {
            // FIXME: read this from some list
            if (!module.symbolsRead && !module.moduleName.contains("Q")) {
                reloadNeeded = true;
                sendCommand("sharedlibrary " + dotEscape(module.moduleName));
            }
        }
        if (reloadNeeded)
            reloadModules();
        continueInferior();
    }
}

void GdbEngine::handleExecJumpToLine(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as 'jump'
    // is supported by MI
    // "&"jump /home/apoenitz/dev/work/test1/test1.cpp:242"
    // ~"Continuing at 0x4058f3."
    // ~"run1 (argc=1, argv=0x7fffb213a478) at test1.cpp:242"
    // ~"242\t x *= 2;"
    //109^done"
    qq->notifyInferiorStopped();
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    q->showStatusMessage(tr("Jumped. Stopped."));
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    QString output = record.data.findChild("logstreamoutput").data();
    if (!output.isEmpty())
        return;
    QString fileAndLine = output.section(' ', 1, 1);
    QString file = fileAndLine.section(':', 0, 0);
    int line = fileAndLine.section(':', 1, 1).toInt();
    q->gotoLocation(file, line, true);
}

void GdbEngine::handleExecRunToFunction(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as there's a real
    // reason given when the temporary breakpoint is hit.
    // reight now we get:
    // 14*stopped,thread-id="1",frame={addr="0x0000000000403ce4",
    // func="foo",args=[{name="str",value="@0x7fff0f450460"}],
    // file="main.cpp",fullname="/tmp/g/main.cpp",line="37"}
    qq->notifyInferiorStopped();
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    q->showStatusMessage(tr("Run to Function finished. Stopped."));
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    GdbMi frame = record.data.findChild("frame");
    QString file = frame.findChild("fullname").data();
    int line = frame.findChild("line").data().toInt();
    qDebug() << "HIT: " << file << line << " IN " << frame.toString()
        << " -- " << record.toString();
    q->gotoLocation(file, line, true);
}

void GdbEngine::handleStreamOutput(const QString &data, char code)
{
    // Linux
    if (data.contains("[New Thread")) {
        QRegExp re("\\[New Thread 0x([0-9a-f]*) \\(LWP ([0-9]*)\\)\\]");
        if (re.indexIn(data) != -1)
            maybeHandleInferiorPidChanged(re.cap(2));
    }

    // Mac
    if (data.contains("[Switching to process ")) {
        QRegExp re("\\[Switching to process ([0-9]*) local thread 0x([0-9a-f]*)\\]");
        if (re.indexIn(data) != -1)
            maybeHandleInferiorPidChanged(re.cap(1));
    }

    // present it twice: now and together with the next 'real' result
    switch (code) {
        case '~':
            m_pendingConsoleStreamOutput += data;
            break;
        case '@':
            m_pendingTargetStreamOutput += data;
            break;
        case '&':
            m_pendingLogStreamOutput += data;
            // On Windows, the contents seem to depend on the debugger
            // version and/or OS version used.
            if (data.startsWith("warning:"))
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                qq->showApplicationOutput(data);
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            break;
    }

#ifdef Q_OS_LINUX
    if (data.startsWith("Pending break") && data.contains("\" resolved")) {
        qDebug() << "SCHEDULING -break-list";
        //m_breakListOnStopNeeded = true;
    }
#endif

#if 0
    if (m_slurpingPTypeOutput)
        qDebug() << "SLURP: " << output.data;

    //  "No symbol \"__dlopen\" in current context."
    //  "No symbol \"dlopen\" in current context."
    if (output.data.startsWith("No symbol ")
            && output.data.contains("dlopen")) {
        m_dlopened = true;
        return;
    }

    // output of 'ptype <foo>'
    if (output.data.startsWith("type = ")) {
        if (output.data.endsWith("{") || output.data.endsWith("{\\n")) {
            // multi-line output started here...
            m_slurpingPTypeOutput = true;
            m_slurpedPTypeOutput = output.data;
        } else {
            // Happens for simple types. Process it immediately
            m_watchHandler->handleTypeContents(output.data);
        }
        return;
    }
    if (m_slurpingPTypeOutput) {
        m_slurpedPTypeOutput += '\n';
        m_slurpedPTypeOutput += output.data;
        if (output.data.startsWith("}")) {
            // this is the last line...
            m_slurpingPTypeOutput = false;
            m_watchHandler->handleTypeContents(m_slurpedPTypeOutput);
            m_slurpedPTypeOutput.clear();
        }
        return;
    }
#endif
}

static bool isExitedReason(const QString &reason)
{
    return reason == QLatin1String("exited-normally")   // inferior exited normally
        || reason == QLatin1String("exited-signalled")  // inferior exited because of a signal
        //|| reason == QLatin1String("signal-received") // inferior received signal
        || reason == QLatin1String("exited");           // inferior exited
}

static bool isStoppedReason(const QString &reason)
{
    return reason == QLatin1String("function-finished")  // -exec-finish
        || reason == QLatin1String("signal-received")  // handled as "isExitedReason"
        || reason == QLatin1String("breakpoint-hit")     // -exec-continue
        || reason == QLatin1String("end-stepping-range") // -exec-next, -exec-step
        || reason == QLatin1String("location-reached")   // -exec-until
        || reason == QLatin1String("access-watchpoint-trigger")
        || reason == QLatin1String("read-watchpoint-trigger")
#ifdef Q_OS_MAC
        || reason.isEmpty()
#endif
    ;
}

void GdbEngine::handleAsyncOutput(const GdbMi &data)
{
    const QString reason = data.findChild("reason").data();

    QString console = data.findChild("consolestreamoutput").data();
    if (console.contains("Stopped due to shared library event") || reason.isEmpty()) {
        ++m_shared;
        //if (m_shared == 2)
        //    tryLoadCustomDumpers();
        //qDebug() << "SHARED LIBRARY EVENT " << data.toString() << m_shared;
        if (qq->useFastStart()) {
            if (1 || m_shared <= 16) { // libpthread?
                sendCommand("info shared", GdbInfoShared);
                //sendCommand("sharedlibrary gdbdebugger ");
                //continueInferior();
            } else {
                // auto-load from now on
                sendCommand("info shared");
                sendCommand("set auto-solib-add on");
                sendCommand("-file-list-exec-source-files", GdbQuerySources);
                sendCommand("-break-list", BreakList);
                //sendCommand("bt");
                //QVariant var = QVariant::fromValue<GdbMi>(data);
                //sendCommand("p 1", GdbAsyncOutput2, var);  // dummy
                continueInferior();
            }
        } else {
            // slow start requested.
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            q->showStatusMessage(tr("Loading %1...").arg(QString(data.toString())));
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            continueInferior();
        }
        return;
    }

    if (isExitedReason(reason)) {
        qq->notifyInferiorExited();
        QString msg = "Program exited normally";
        if (reason == "exited") {
            msg = "Program exited with exit code "
                + data.findChild("exit-code").toString();
        } else if (reason == "exited-signalled") {
            msg = "Program exited after receiving signal "
                + data.findChild("signal-name").toString();
        } else if (reason == "signal-received") {
            msg = "Program exited after receiving signal "
                + data.findChild("signal-name").toString();
        }
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        q->showStatusMessage(msg);
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        q->exitDebugger();
        return;
    }

    tryLoadCustomDumpers();

    // jump over well-known frames
    static int stepCounter = 0;
    if (qq->skipKnownFrames()) {
        if (reason == "end-stepping-range" || reason == "function-finished") {
            GdbMi frame = data.findChild("frame");
            //qDebug() << frame.toString();
            m_currentFrame = frame.findChild("addr").data() + '%' +
                 frame.findChild("func").data() + '%';

            QString funcName = frame.findChild("func").data();
            QString fileName = frame.findChild("file").data();
            if (isLeavableFunction(funcName, fileName)) {
                //qDebug() << "LEAVING" << funcName;
                ++stepCounter;
                q->stepOutExec();
                //stepExec();
                return;
            }
            if (isSkippableFunction(funcName, fileName)) {
                //qDebug() << "SKIPPING" << funcName;
                ++stepCounter;
                q->stepExec();
                return;
            }
            //if (stepCounter)
            //    qDebug() << "STEPCOUNTER:" << stepCounter;
            stepCounter = 0;
        }
    }

    if (isStoppedReason(reason) || reason.isEmpty()) {
        // Need another round trip
        if (reason == "breakpoint-hit") {
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            q->showStatusMessage(tr("Stopped at breakpoint"));
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            GdbMi frame = data.findChild("frame");
            //qDebug() << frame.toString();
            m_currentFrame = frame.findChild("addr").data() + '%' +
                 frame.findChild("func").data() + '%';

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            QApplication::alert(q->mainWindow(), 3000);
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            sendCommand("-file-list-exec-source-files", GdbQuerySources);
            sendCommand("-break-list", BreakList);
            QVariant var = QVariant::fromValue<GdbMi>(data);
            sendCommand("p 0", GdbAsyncOutput2, var);  // dummy
        } else {
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            q->showStatusMessage(tr("Stopped: \"%1\"").arg(reason));
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            handleAsyncOutput2(data);
        }
        return;
    }

    qDebug() << "STOPPED FOR UNKNOWN REASON" << data.toString();
    // Ignore it. Will be handled with full response later in the
    // JumpToLine or RunToFunction handlers
#if 1
    // FIXME: remove this special case as soon as there's a real
    // reason given when the temporary breakpoint is hit.
    // reight now we get:
    // 14*stopped,thread-id="1",frame={addr="0x0000000000403ce4",
    // func="foo",args=[{name="str",value="@0x7fff0f450460"}],
    // file="main.cpp",fullname="/tmp/g/main.cpp",line="37"}
    //
    // MAC yields sometimes:
    // stdout:3661*stopped,time={wallclock="0.00658",user="0.00142",
    // system="0.00136",start="1218810678.805432",end="1218810678.812011"}
    q->resetLocation();
    qq->notifyInferiorStopped();
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    q->showStatusMessage(tr("Run to Function finished. Stopped."));
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    GdbMi frame = data.findChild("frame");
    QString file = frame.findChild("fullname").data();
    int line = frame.findChild("line").data().toInt();
    qDebug() << "HIT: " << file << line << " IN " << frame.toString()
        << " -- " << data.toString();
    q->gotoLocation(file, line, true);
#endif
}


void GdbEngine::handleAsyncOutput2(const GdbMi &data)
{
    qq->notifyInferiorStopped();

    //
    // Breakpoints
    //
    //qDebug() << "BREAK ASYNC: " << output.toString();
    //sendListBreakpoints();
    //attemptBreakpointSynchronization();
    //if (m_breakListOnStopNeeded)
    //    sendListBreakpoints();

    // something reasonably 'invariant'
    // Linux:
    //"79*stopped,reason="end-stepping-range",reason="breakpoint-hit",bkptno="1",
    //thread-id="1",frame={addr="0x0000000000405d8f",func="run1",
    //args=[{name="argc",value="1"},{name="argv",value="0x7fffb7c23058"}],
    //file="test1.cpp",fullname="/home/apoenitz/dev/work/test1/test1.cpp"
    //,line="261"}"
    // Mac: (but only sometimes)
    // "82*stopped,bkpt={number="0",type="step
    // resume",disp="keep",enabled="y",addr="0x43127171",at="<Find::
    // Internal::FindToolWindow::invokeFindIncremental()
    // +225>",thread="1",shlib="/Users/epreuss/dev/ide/main/bin/
    // workbench.app/Contents/PlugIns/Trolltech/libFind.1.0.0.dylib",
    // frame="0xbfffd800",thread="1",times="1"},

    //
    // Stack
    //
    qq->stackHandler()->setCurrentIndex(0);
    updateLocals(); // Quick shot

    int currentId = data.findChild("thread-id").data().toInt();
    sendSynchronizedCommand("-stack-list-frames", StackListFrames);
    if (supportsThreads())
        sendSynchronizedCommand("-thread-list-ids", StackListThreads, currentId);

    //
    // Disassembler
    //
    // Linux:
    //"79*stopped,reason="end-stepping-range",reason="breakpoint-hit",bkptno="1",
    //thread-id="1",frame={addr="0x0000000000405d8f",func="run1",
    //args=[{name="argc",value="1"},{name="argv",value="0x7fffb7c23058"}],
    //file="test1.cpp",fullname="/home/apoenitz/dev/work/test1/test1.cpp",line="261"}"
    // Mac: (but only sometimes)
    m_address = data.findChild("frame").findChild("addr").data();
    qq->reloadDisassembler();

    //
    // Registers
    //
    qq->reloadRegisters();
}

void GdbEngine::handleShowVersion(const GdbResultRecord &response)
{
    if (response.resultClass == GdbResultDone) {
        m_gdbVersion = 100;
        QString msg = response.data.findChild("consolestreamoutput").data();
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        QRegExp supported("GNU gdb(.*) (\\d+)\\.(\\d+)(\\.(\\d+))?");
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        if (supported.indexIn(msg) == -1) {
            qDebug() << "UNSUPPORTED GDB VERSION " << msg;
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            QStringList list = msg.split("\n");
            while (list.size() > 2)
                list.removeLast();
            msg = tr("The debugger you are using identifies itself as:")
                + "<p><p>" + list.join("<br>") + "<p><p>"
                + tr("This version is not officially supported by Qt Creator.\n"
                     "Debugging will most likely not work well.\n"
                     "Using gdb 6.7 or later is strongly recommended.");
#if 0
            // ugly, but 'Show again' check box...
            static QErrorMessage *err = new QErrorMessage(m_mainWindow);
            err->setMinimumSize(400, 300);
            err->showMessage(msg);
#else
            //QMessageBox::information(m_mainWindow, tr("Warning"), msg);
#endif
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        } else {
            m_gdbVersion = 10000 * supported.cap(2).toInt()
                         +   100 * supported.cap(3).toInt()
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                         +     1 * supported.cap(5).toInt();
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            //qDebug() << "GDB VERSION " << m_gdbVersion;
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        }
    }
}

void GdbEngine::handleFileExecAndSymbols
    (const GdbResultRecord &response)
{
    if (response.resultClass == GdbResultDone) {
        //m_breakHandler->clearBreakMarkers();
    } else if (response.resultClass == GdbResultError) {
        QString msg = response.data.findChild("msg").data();
        QMessageBox::critical(q->mainWindow(), tr("Error"),
            tr("Starting executable failed:\n") + msg);
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        QTC_ASSERT(q->status() == DebuggerInferiorRunning, /**/);
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        interruptInferior();
    }
}

void GdbEngine::handleExecRun(const GdbResultRecord &response)
{
    if (response.resultClass == GdbResultRunning) {
        qq->notifyInferiorRunning();
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        q->showStatusMessage(tr("Running..."));
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        //reloadModules();
    } else if (response.resultClass == GdbResultError) {
        QString msg = response.data.findChild("msg").data();
        if (msg == "Cannot find bounds of current function") {
            qq->notifyInferiorStopped();
            //q->showStatusMessage(tr("No debug information available. "
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            //  "Leaving function..."));
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            //stepOutExec();
        } else {
            QMessageBox::critical(q->mainWindow(), tr("Error"),
                tr("Starting executable failed:\n") + msg);
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            QTC_ASSERT(q->status() == DebuggerInferiorRunning, /**/);
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            interruptInferior();
        }
    }
}

void GdbEngine::queryFullName(const QString &fileName, QString *full)
{
    *full = fullName(fileName);
}

QString GdbEngine::shortName(const QString &fullName)
{
    return m_fullToShortName.value(fullName, QString());
}

QString GdbEngine::fullName(const QString &fileName)
{
    //QString absName = m_manager->currentWorkingDirectory() + "/" + file; ??
    if (fileName.isEmpty())
        return QString();
    QString full = m_shortToFullName.value(fileName, QString());
    //qDebug() << "RESOLVING: " << fileName << full;
    if (!full.isEmpty())
        return full;
    QFileInfo fi(fileName);
    if (!fi.isReadable())
        return QString();
    full = fi.absoluteFilePath();
    #ifdef Q_OS_WIN
    full = QDir::cleanPath(full);
    #endif
    //qDebug() << "STORING: " << fileName << full;
    m_shortToFullName[fileName] = full;
    m_fullToShortName[full] = fileName;
    return full;
}

QString GdbEngine::fullName(const QStringList &candidates)
{
    QString full;
    foreach (const QString &fileName, candidates) {
        full = fullName(fileName);
        if (!full.isEmpty())
            return full;
    }
    foreach (const QString &fileName, candidates) {
        if (!fileName.isEmpty())
            return fileName;
    }
    return full;
}

void GdbEngine::shutdown()
{
    exitDebugger();
}

void GdbEngine::exitDebugger()
{
    //qDebug() << "EXITING: " << m_gdbProc.state();
    if (m_gdbProc.state() == QProcess::Starting)
        m_gdbProc.waitForStarted();
    if (m_gdbProc.state() == QProcess::Running) {
        interruptInferior();
        sendCommand("kill");
        sendCommand("-gdb-exit");
        // 20s can easily happen when loading webkit debug information
        m_gdbProc.waitForFinished(20000);
        if (m_gdbProc.state() != QProcess::Running) {
            m_gdbProc.terminate();
            m_gdbProc.waitForFinished(20000);
        }
    }
    if (m_gdbProc.state() != QProcess::NotRunning)
        qDebug() << "PROBLEM STOPPING DEBUGGER";

    m_shortToFullName.clear();
    m_fullToShortName.clear();
    m_varToType.clear();
    m_dataDumperState = DataDumperUninitialized;
    m_shared = 0;
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    //q->settings()->m_debugDumpers = false;
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}


int GdbEngine::currentFrame() const
{
    return qq->stackHandler()->currentIndex();
}


bool GdbEngine::startDebugger()
{
    QStringList gdbArgs;

    QFileInfo fi(q->m_executable);
    QString fileName = '"' + fi.absoluteFilePath() + '"';

    if (m_gdbProc.state() != QProcess::NotRunning) {
        qDebug() << "GDB IS ALREADY RUNNING!";
        return false;
    }

    //gdbArgs.prepend(QLatin1String("--quiet"));
    gdbArgs.prepend(QLatin1String("mi"));
    gdbArgs.prepend(QLatin1String("-i"));

    if (!q->m_workingDir.isEmpty())
        m_gdbProc.setWorkingDirectory(q->m_workingDir);
    if (!q->m_environment.isEmpty())
        m_gdbProc.setEnvironment(q->m_environment);

    #if 0
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    qDebug() << "Command: " << q->settings()->m_gdbCmd;
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    qDebug() << "WorkingDirectory: " << m_gdbProc.workingDirectory();
    qDebug() << "Environment: " << m_gdbProc.environment();
    qDebug() << "Arguments: " << gdbArgs;
    qDebug() << "BuildDir: " << q->m_buildDir;
    qDebug() << "ExeFile: " << q->m_executable;
    #endif

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    q->showStatusMessage(tr("Starting Debugger"));
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    emit gdbInputAvailable(QString(), q->settings()->m_gdbCmd + ' ' + gdbArgs.join(" "));
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    m_gdbProc.start(q->settings()->m_gdbCmd, gdbArgs);
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    m_gdbProc.waitForStarted();

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    if (m_gdbProc.state() != QProcess::Running) {
        QMessageBox::critical(q->mainWindow(), tr("Debugger Startup Failure"),
                              tr("Cannot start debugger: %1").arg(m_gdbProc.errorString()));
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        return false;
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    }
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    q->showStatusMessage(tr("Gdb Running"));
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    sendCommand("show version", GdbShowVersion);
    if (qq->useFastStart()) {
        sendCommand("set auto-solib-add off");
        sendCommand("set stop-on-solib-events 1");
    }
    //sendCommand("-enable-timings");
    //sendCommand("set stop-on-solib-events 1");
    sendCommand("set print static-members off"); // Seemingly doesn't work.
    //sendCommand("define hook-stop\n-thread-list-ids\n-stack-list-frames\nend");
    //sendCommand("define hook-stop\nprint 4\nend");
    //sendCommand("define hookpost-stop\nprint 5\nend");
    //sendCommand("define hook-call\nprint 6\nend");
    //sendCommand("define hookpost-call\nprint 7\nend");
    //sendCommand("set print object on"); // works with CLI, but not MI
    //sendCommand("set step-mode on");  // we can't work with that yes
    //sendCommand("set exec-done-display on");
    //sendCommand("set print pretty on");
    //sendCommand("set confirm off");
    //sendCommand("set pagination off");
    sendCommand("set breakpoint pending on", BreakEnablePending);

    // one of the following is needed to prevent crashes in gdb on code like:
    //  template <class T> T foo() { return T(0); }
    //  int main() { return foo<int>(); }
    //  (gdb) call 'int foo<int>'()
    //  /build/buildd/gdb-6.8/gdb/valops.c:2069: internal-error:
    sendCommand("set overload-resolution off");
    //sendCommand("set demangle-style none");

    // From the docs:
    //  Stop means reenter debugger if this signal happens (implies print).
    //  Print means print a message if this signal happens.
    //  Pass means let program see this signal;
    //  otherwise program doesn't know.
    //  Pass and Stop may be combined.
    // We need "print" as otherwise we would get no feedback whatsoever
    // Custom Dumper crashs which happen regularily for when accessing
    // uninitialized variables.
    sendCommand("handle SIGSEGV nopass stop print");

    // This is useful to kill the inferior whenever gdb dies.
    //sendCommand("handle SIGTERM pass nostop print");

    sendCommand("set unwindonsignal on");
    sendCommand("pwd", GdbQueryPwd);

    #ifdef Q_OS_MAC
    sendCommand("-gdb-set inferior-auto-start-cfm off");
    sendCommand("-gdb-set sharedLibrary load-rules "
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            "dyld \".*libSystem.*\" all "
            "dyld \".*libauto.*\" all "
            "dyld \".*AppKit.*\" all "
            "dyld \".*PBGDBIntrospectionSupport.*\" all "
            "dyld \".*Foundation.*\" all "
            "dyld \".*CFDataFormatters.*\" all "
            "dyld \".*libobjc.*\" all "
            "dyld \".*CarbonDataFormatters.*\" all");
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    #endif
    if (q->startMode() == q->attachExternal) {
        sendCommand("attach " + QString::number(q->m_attachedPID));
    }

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    if (q->startMode() == q->startInternal || q->startMode() == q->startExternal) {
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        sendCommand("-file-exec-and-symbols " + fileName, GdbFileExecAndSymbols);
        #ifdef Q_OS_MAC
        sendCommand("sharedlibrary apply-load-rules all");
        #endif
        sendCommand("-file-list-exec-source-files", GdbQuerySources);
        //sendCommand("-gdb-set stop-on-solib-events 1");
    }

    sendCommand("-data-list-register-names", RegisterListNames);

    // set all to "pending"
    if (q->startMode() == q->attachExternal)
        qq->breakHandler()->removeAllBreakpoints();
    else
        qq->breakHandler()->setAllPending();

    QTimer::singleShot(0, this, SLOT(attemptBreakpointSynchronization()));

    return true;
}

void GdbEngine::continueInferior()
{
    q->resetLocation();
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    emit gdbInputAvailable(QString(), QString());
    sendCommand("-exec-continue", GdbExecContinue);
}

void GdbEngine::runInferior()
{
    q->resetLocation();
    // FIXME: this ignores important startup messages
    setTokenBarrier();
    if (!q->m_processArgs.isEmpty())
        sendCommand("-exec-arguments " + q->m_processArgs.join(" "));
    qq->notifyInferiorRunningRequested();
    emit gdbInputAvailable(QString(), QString());
    sendCommand("-exec-run", GdbExecRun);
#if defined(Q_OS_WIN)
    sendCommand("info proc", GdbInfoProc);
#endif
#if defined(Q_OS_LINUX)
    sendCommand("info proc", GdbInfoProc);
#endif
#if defined(Q_OS_MAC)
    sendCommand("info pid", GdbInfoProc, QVariant(), true);
#endif
}

void GdbEngine::stepExec()
{
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    emit gdbInputAvailable(QString(), QString());
    sendCommand("-exec-step", GdbExecStep);
}

void GdbEngine::stepIExec()
{
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    sendCommand("-exec-step-instruction", GdbExecStepI);
}

void GdbEngine::stepOutExec()
{
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    sendCommand("-exec-finish", GdbExecFinish);
}

void GdbEngine::nextExec()
{
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    emit gdbInputAvailable(QString(), QString());
    sendCommand("-exec-next", GdbExecNext);
}

void GdbEngine::nextIExec()
{
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    sendCommand("-exec-next-instruction", GdbExecNextI);
}

void GdbEngine::runToLineExec(const QString &fileName, int lineNumber)
{
    setTokenBarrier();
    qq->notifyInferiorRunningRequested();
    sendCommand("-exec-until " + fileName + ":" + QString::number(lineNumber));
}

void GdbEngine::runToFunctionExec(const QString &functionName)
{
    setTokenBarrier();
    sendCommand("-break-insert -t " + functionName);
    qq->notifyInferiorRunningRequested();
    sendCommand("-exec-continue", GdbExecRunToFunction);
}

void GdbEngine::jumpToLineExec(const QString &fileName, int lineNumber)
{
#if 1
    // not available everywhere?
    //sendCliCommand("tbreak " + fileName + ":" + QString::number(lineNumber));
    sendCommand("-break-insert -t " + fileName + ":" + QString::number(lineNumber));
    sendCommand("jump " + fileName + ":" + QString::number(lineNumber));
    // will produce something like
    //  &"jump /home/apoenitz/dev/work/test1/test1.cpp:242"
    //  ~"Continuing at 0x4058f3."
    //  ~"run1 (argc=1, argv=0x7fffbf1f5538) at test1.cpp:242"
    //  ~"242\t x *= 2;"
    //  23^done"
    q->gotoLocation(fileName, lineNumber, true);
    //setBreakpoint();
    //sendCommand("jump " + fileName + ":" + QString::number(lineNumber));
#else
    q->gotoLocation(fileName, lineNumber, true);
    setBreakpoint(fileName, lineNumber);
    sendCommand("jump " + fileName + ":" + QString::number(lineNumber));
#endif
}

/*!
    \fn void GdbEngine::setTokenBarrier()
    \brief Sets up internal structures to handle a new debugger turn.

    This method is called at the beginnign of all step/next/finish etc.
    debugger functions.
*/

void GdbEngine::setTokenBarrier()
{
    m_oldestAcceptableToken = currentToken();
}

void GdbEngine::setDebugDumpers(bool on)
{
    if (on) {
        qDebug() << "SWITCHING ON DUMPER DEBUGGING";
        sendCommand("set unwindonsignal off");
        q->breakByFunction("qDumpObjectData440");
        //updateLocals();
    } else {
        qDebug() << "SWITCHING OFF DUMPER DEBUGGING";
        sendCommand("set unwindonsignal on");
    }
}

//QByteArray GdbEngine::dumperChannel() const
//{
//    return m_dumperServer->serverName().toLatin1();
//    //QByteArray ba;
//    //ba.setNum(m_dumperServer->serverPort());
//    //return ba;
//}


//////////////////////////////////////////////////////////////////////
//
// Breakpoint specific stuff
//
//////////////////////////////////////////////////////////////////////

void GdbEngine::breakpointDataFromOutput(BreakpointData *data, const GdbMi &bkpt)
{
    if (!bkpt.isValid())
        return;
    if (!data)
        return;
    data->pending = false;
    data->bpMultiple = false;
    data->bpCondition.clear();
    QStringList files;
    foreach (const GdbMi &child, bkpt.children()) {
        if (child.hasName("number")) {
            data->bpNumber = child.data();
        } else if (child.hasName("func")) {
            data->bpFuncName = child.data();
        } else if (child.hasName("addr")) {
            // <MULTIPLE> happens in constructors. In this case there are
            // _two_ fields named "addr" in the response. On Linux that is...
            if (child.data() == "<MULTIPLE>")
                data->bpMultiple = true;
            else
                data->bpAddress = child.data();
        } else if (child.hasName("file")) {
            files.append(child.data());
        } else if (child.hasName("fullname")) {
            QString fullName = child.data();
            #ifdef Q_OS_WIN
            fullName = QDir::cleanPath(fullName);
            #endif
            files.prepend(fullName);
        } else if (child.hasName("line")) {
            data->bpLineNumber = child.data();
            if (child.data().toInt())
                data->markerLineNumber = child.data().toInt();
        } else if (child.hasName("cond")) {
            data->bpCondition = child.data();
            // gdb 6.3 likes to "rewrite" conditions. Just accept that fact.
            if (data->bpCondition != data->condition && data->conditionsMatch())
                data->condition = data->bpCondition;
        }
        else if (child.hasName("pending")) {
            data->pending = true;
            int pos = child.data().lastIndexOf(':');
            if (pos > 0) {
                data->bpLineNumber = child.data().mid(pos + 1);
                data->markerLineNumber = child.data().mid(pos + 1).toInt();
                files.prepend(child.data().left(pos));
            } else {
                files.prepend(child.data());
            }
        }
    }
    // This field is not present.  Contents needs to be parsed from
    // the plain "ignore" response.
    //else if (child.hasName("ignore"))
    //    data->bpIgnoreCount = child.data();

    QString name = fullName(files);
    if (data->bpFileName.isEmpty())
        data->bpFileName = name;
    if (data->markerFileName.isEmpty())
        data->markerFileName = name;
}

void GdbEngine::sendInsertBreakpoint(int index)
{
    const BreakpointData *data = qq->breakHandler()->at(index);
    QString where;
    if (data->funcName.isEmpty()) {
        where = data->fileName;
#ifdef Q_OS_MAC
        // full names do not work on Mac/MI
        QFileInfo fi(data->fileName);
        where = fi.fileName();
        //where = fi.absoluteFilePath();
#endif
#ifdef Q_OS_WIN
        // full names do not work on Mac/MI
        QFileInfo fi(data->fileName);
        where = fi.fileName();
    //where = m_manager->shortName(data->fileName);
        //if (where.isEmpty())
        //    where = data->fileName;
#endif
        // we need something like   "\"file name.cpp\":100"  to
        // survive the gdb command line parser with file names intact
        where = "\"\\\"" + where + "\\\":" + data->lineNumber + "\"";
    } else {
        where = data->funcName;
    }

    // set up fallback in case of pending breakpoints which aren't handled
    // by the MI interface
#ifdef Q_OS_LINUX
    QString cmd = "-break-insert ";
    //if (!data->condition.isEmpty())
    //    cmd += "-c " + data->condition + " ";
    cmd += where;
#endif
#ifdef Q_OS_MAC
    QString cmd = "-break-insert -l -1 ";
    //if (!data->condition.isEmpty())
    //    cmd += "-c " + data->condition + " ";
    cmd += where;
#endif
#ifdef Q_OS_WIN
    QString cmd = "-break-insert ";
    //if (!data->condition.isEmpty())
    //    cmd += "-c " + data->condition + " ";
    cmd += where;
#endif
    sendCommand(cmd, BreakInsert, index, true);
    //processQueueAndContinue();
}

void GdbEngine::handleBreakList(const GdbResultRecord &record)
{
    // 45^done,BreakpointTable={nr_rows="2",nr_cols="6",hdr=[
    // {width="3",alignment="-1",col_name="number",colhdr="Num"}, ...
    // body=[bkpt={number="1",type="breakpoint",disp="keep",enabled="y",
    //  addr="0x000000000040109e",func="main",file="app.cpp",
    //  fullname="/home/apoenitz/dev/work/plugintest/app/app.cpp",
    //  line="11",times="1"},
    //  bkpt={number="2",type="breakpoint",disp="keep",enabled="y",
    //  addr="<PENDING>",pending="plugin.cpp:7",times="0"}] ... }

    if (record.resultClass == GdbResultDone) {
        GdbMi table = record.data.findChild("BreakpointTable");
        if (table.isValid())
            handleBreakList(table);
    }
}

void GdbEngine::handleBreakList(const GdbMi &table)
{
    //qDebug() << "GdbEngine::handleOutput: table: "
    //  << table.toString();
    GdbMi body = table.findChild("body");
    //qDebug() << "GdbEngine::handleOutput: body: "
    //  << body.toString();
    QList<GdbMi> bkpts;
    if (body.isValid()) {
        // Non-Mac
        bkpts = body.children();
    } else {
        // Mac
        bkpts = table.children();
        // remove the 'hdr' and artificial items
        //qDebug() << "FOUND " << bkpts.size() << " BREAKPOINTS";
        for (int i = bkpts.size(); --i >= 0; ) {
            int num = bkpts.at(i).findChild("number").data().toInt();
            if (num <= 0) {
                //qDebug() << "REMOVING " << i << bkpts.at(i).toString();
                bkpts.removeAt(i);
            }
        }
        //qDebug() << "LEFT " << bkpts.size() << " BREAKPOINTS";
    }

    BreakHandler *handler = qq->breakHandler();
    for (int index = 0; index != bkpts.size(); ++index) {
        BreakpointData temp(handler);
        breakpointDataFromOutput(&temp, bkpts.at(index));
        int found = handler->findBreakpoint(temp);
        if (found != -1)
            breakpointDataFromOutput(handler->at(found), bkpts.at(index));
        //else
            //qDebug() << "CANNOT HANDLE RESPONSE " << bkpts.at(index).toString();
    }

    attemptBreakpointSynchronization();
    handler->updateMarkers();
}


void GdbEngine::handleBreakIgnore(const GdbResultRecord &record, int index)
{
    // gdb 6.8:
    // ignore 2 0:
    // ~"Will stop next time breakpoint 2 is reached.\n"
    // 28^done
    // ignore 2 12:
    // &"ignore 2 12\n"
    // ~"Will ignore next 12 crossings of breakpoint 2.\n"
    // 29^done
    //
    // gdb 6.3 does not produce any console output
    BreakHandler *handler = qq->breakHandler();
    if (record.resultClass == GdbResultDone && index < handler->size()) {
        QString msg = record.data.findChild("consolestreamoutput").data();
        BreakpointData *data = handler->at(index);
        //if (msg.contains("Will stop next time breakpoint")) {
        //    data->bpIgnoreCount = "0";
        //} else if (msg.contains("Will ignore next")) {
        //    data->bpIgnoreCount = data->ignoreCount;
        //}
        // FIXME: this assumes it is doing the right thing...
        data->bpIgnoreCount = data->ignoreCount;
        attemptBreakpointSynchronization();
        handler->updateMarkers();
    }
}

void GdbEngine::handleBreakCondition(const GdbResultRecord &record, int index)
{
    BreakHandler *handler = qq->breakHandler();
    if (record.resultClass == GdbResultDone) {
        // we just assume it was successful. otherwise we had to parse
        // the output stream data
        BreakpointData *data = handler->at(index);
        //qDebug() << "HANDLE BREAK CONDITION " << index << data->condition;
        data->bpCondition = data->condition;
        attemptBreakpointSynchronization();
        handler->updateMarkers();
    } else if (record.resultClass == GdbResultError) {
        QString msg = record.data.findChild("msg").data();
        // happens on Mac
        if (1 || msg.startsWith("Error parsing breakpoint condition. "
                " Will try again when we hit the breakpoint.")) {
            BreakpointData *data = handler->at(index);
            //qDebug() << "ERROR BREAK CONDITION " << index << data->condition;
            data->bpCondition = data->condition;
            attemptBreakpointSynchronization();
            handler->updateMarkers();
        }
    }
}

void GdbEngine::handleBreakInsert(const GdbResultRecord &record, int index)
{
    BreakHandler *handler = qq->breakHandler();
    if (record.resultClass == GdbResultDone) {
        //qDebug() << "HANDLE BREAK INSERT " << index;
//#ifdef Q_OS_MAC
        // interesting only on Mac?
        BreakpointData *data = handler->at(index);
        GdbMi bkpt = record.data.findChild("bkpt");
        //qDebug() << "BKPT: " << bkpt.toString() << " DATA" << data->toToolTip();
        breakpointDataFromOutput(data, bkpt);
//#endif
        attemptBreakpointSynchronization();
        handler->updateMarkers();
    } else if (record.resultClass == GdbResultError) {
        const BreakpointData *data = handler->at(index);
#ifdef Q_OS_LINUX
        //QString where = "\"\\\"" + data->fileName + "\\\":"
        //    + data->lineNumber + "\"";
        QString where = "\"" + data->fileName + "\":"
            + data->lineNumber;
        sendCommand("break " + where, BreakInsert1, index);
#endif
#ifdef Q_OS_MAC
        QFileInfo fi(data->fileName);
        QString where = "\"" + fi.fileName() + "\":"
            + data->lineNumber;
        sendCommand("break " + where, BreakInsert1, index);
#endif
#ifdef Q_OS_WIN
        QFileInfo fi(data->fileName);
        QString where = "\"" + fi.fileName() + "\":"
            + data->lineNumber;
        //QString where = m_data->fileName + QLatin1Char(':') + data->lineNumber;
        sendCommand("break " + where, BreakInsert1, index);
#endif
    }
}

void GdbEngine::extractDataFromInfoBreak(const QString &output, BreakpointData *data)
{
    data->bpFileName = "<MULTIPLE>";

    //qDebug() << output;
    if (output.isEmpty())
        return;
    // "Num     Type           Disp Enb Address            What
    // 4       breakpoint     keep y   <MULTIPLE>         0x00000000004066ad
    // 4.1                         y     0x00000000004066ad in CTorTester
    //  at /data5/dev/ide/main/tests/manual/gdbdebugger/simple/app.cpp:124
    // - or - 
    // everything on a single line on Windows for constructors of classes
    // within namespaces.
    // Sometimes the path is relative too.
  
    QRegExp re("MULTIPLE.*(0x[0-9a-f]+) in (.*)\\s+at (.*):([\\d]+)([^\\d]|$)");
    re.setMinimal(true);

    if (re.indexIn(output) != -1) {
        data->bpAddress = re.cap(1);
        data->bpFuncName = re.cap(2).trimmed();
        data->bpLineNumber = re.cap(4);
        QString full = fullName(re.cap(3));
        data->markerLineNumber = data->bpLineNumber.toInt();
        data->markerFileName = full;
        data->bpFileName = full;
        //qDebug() << "FOUND BREAKPOINT\n" << output
        //    << re.cap(1) << "\n" << re.cap(2) << "\n"
        //    << re.cap(3) << "\n" << re.cap(4) << "\n";
    } else {
        qDebug() << "COULD NOT MATCH " << re.pattern() << " AND " << output;
        data->bpNumber = "<unavailable>";
    }
}

void GdbEngine::handleBreakInfo(const GdbResultRecord &record, int bpNumber)
{
    BreakHandler *handler = qq->breakHandler();
    if (record.resultClass == GdbResultDone) {
        // Old-style output for multiple breakpoints, presumably in a
        // constructor
        int found = handler->findBreakpoint(bpNumber);
        if (found != -1) {
            QString str = record.data.findChild("consolestreamoutput").data();
            extractDataFromInfoBreak(str, handler->at(found));
            handler->updateMarkers();
            attemptBreakpointSynchronization(); // trigger "ready"
        }
    }
}

void GdbEngine::handleBreakInsert1(const GdbResultRecord &record, int index)
{
    BreakHandler *handler = qq->breakHandler();
    if (record.resultClass == GdbResultDone) {
        // Pending breakpoints in dylibs on Mac only?
        BreakpointData *data = handler->at(index);
        GdbMi bkpt = record.data.findChild("bkpt");
        breakpointDataFromOutput(data, bkpt);
        attemptBreakpointSynchronization(); // trigger "ready"
        handler->updateMarkers();
    } else if (record.resultClass == GdbResultError) {
        qDebug() << "INSERTING BREAKPOINT WITH BASE NAME FAILED. GIVING UP";
        BreakpointData *data = handler->at(index);
        data->bpNumber = "<unavailable>";
        attemptBreakpointSynchronization(); // trigger "ready"
        handler->updateMarkers();
    }
}

void GdbEngine::attemptBreakpointSynchronization()
{
    BreakHandler *handler = qq->breakHandler();
    //qDebug() << "BREAKPOINT SYNCHRONIZATION ";

    foreach (BreakpointData *data, handler->takeRemovedBreakpoints()) {
        //qDebug() << " SYNCHRONIZATION REMOVING" << data;
        QString bpNumber = data->bpNumber;
        if (!bpNumber.trimmed().isEmpty())
            sendCommand("-break-delete " + bpNumber, BreakDelete, 0, true);
        //else
        //    qDebug() << "BP HAS NO NUMBER: " << data->markerFileName;
        delete data;
    }

    bool updateNeeded = false;

    for (int index = 0; index != handler->size(); ++index) {
        BreakpointData *data = handler->at(index);
        // multiple breakpoints?
        if (data->bpMultiple && data->bpFileName.isEmpty()) {
            sendCommand(QString("info break %1").arg(data->bpNumber),
                BreakInfo, data->bpNumber.toInt());
            updateNeeded = true;
            break;
        }
    }

    for (int index = 0; index != handler->size(); ++index) {
        BreakpointData *data = handler->at(index);
        // unset breakpoints?
        if (data->bpNumber.isEmpty()) {
            data->bpNumber = " ";
            sendInsertBreakpoint(index);
            //qDebug() << "UPDATE NEEDED BECAUSE OF UNKNOWN BREAKPOINT";
            updateNeeded = true;
            break;
        }
    }

    if (!updateNeeded) {
        for (int index = 0; index != handler->size(); ++index) {
            BreakpointData *data = handler->at(index);
            // update conditions if needed
            if (data->bpNumber.toInt() && data->condition != data->bpCondition
                   && !data->conditionsMatch()) {
                sendCommand(QString("condition %1 %2").arg(data->bpNumber)
                    .arg(data->condition), BreakCondition, index);
                //qDebug() << "UPDATE NEEDED BECAUSE OF CONDITION"
                //    << data->condition << data->bpCondition;
                updateNeeded = true;
                break;
            }
            // update ignorecount if needed
            if (data->bpNumber.toInt() && data->ignoreCount != data->bpIgnoreCount) {
                sendCommand(QString("ignore %1 %2").arg(data->bpNumber)
                    .arg(data->ignoreCount), BreakIgnore, index);
                updateNeeded = true;
                break;
            }
        }
    }

    for (int index = 0; index != handler->size(); ++index) {
        // happens sometimes on Mac. Brush over symptoms
        BreakpointData *data = handler->at(index);
        if (data->markerFileName.startsWith("../")) {
            data->markerFileName = fullName(data->markerFileName);
            handler->updateMarkers();
        }
    }

    if (updateNeeded) {
        //interruptAndContinue();
        //sendListBreakpoints();
    }

    if (!updateNeeded && q->status() == DebuggerProcessStartingUp)
        qq->notifyStartupFinished();
}


//////////////////////////////////////////////////////////////////////
//
// Disassembler specific stuff
//
//////////////////////////////////////////////////////////////////////

void GdbEngine::reloadDisassembler()
{
    emit sendCommand("disassemble", DisassemblerList, m_address);
}

void GdbEngine::handleDisassemblerList(const GdbResultRecord &record,
    const QString &cookie)
{
    QList<DisassemblerLine> lines;
    static const QString pad = QLatin1String("    ");
    int currentLine = -1;
    if (record.resultClass == GdbResultDone) {
        QString res = record.data.findChild("consolestreamoutput").data();
        QTextStream ts(&res, QIODevice::ReadOnly);
        while (!ts.atEnd()) {
            //0x0000000000405fd8 <_ZN11QTextStreamD1Ev@plt+0>:
            //    jmpq   *2151890(%rip)    # 0x6135b0 <_GLOBAL_OFFSET_TABLE_+640>
            //0x0000000000405fde <_ZN11QTextStreamD1Ev@plt+6>:
            //    pushq  $0x4d
            //0x0000000000405fe3 <_ZN11QTextStreamD1Ev@plt+11>:
            //    jmpq   0x405af8 <_init+24>
            //0x0000000000405fe8 <_ZN9QHashData6rehashEi@plt+0>:
            //    jmpq   *2151882(%rip)    # 0x6135b8 <_GLOBAL_OFFSET_TABLE_+648>
            QString str = ts.readLine();
            if (!str.startsWith(QLatin1String("0x"))) {
                //qDebug() << "IGNORING DISASSEMBLER" << str;
                continue;
            }
            DisassemblerLine line;
            QTextStream ts(&str, QIODevice::ReadOnly);
            ts >> line.address >> line.symbol;
            line.mnemonic = ts.readLine().trimmed();
            if (line.symbol.endsWith(QLatin1Char(':')))
                line.symbol.chop(1);
            line.addressDisplay = line.address + pad;
            if (line.addressDisplay.startsWith(QLatin1String("0x00000000")))
                line.addressDisplay.replace(2, 8, QString());
            line.symbolDisplay = line.symbol + pad;

            if (line.address == cookie)
                currentLine = lines.size();

            lines.append(line);
        }
    } else {
        DisassemblerLine line;
        line.addressDisplay = tr("<could not retreive module information>");
        lines.append(line);
    }

    qq->disassemblerHandler()->setLines(lines);
    if (currentLine != -1)
        qq->disassemblerHandler()->setCurrentLine(currentLine);
}


//////////////////////////////////////////////////////////////////////
//
// Modules specific stuff
//
//////////////////////////////////////////////////////////////////////

void GdbEngine::loadSymbols(const QString &moduleName)
{
    // FIXME: gdb does not understand quoted names here (tested with 6.8)
    sendCommand("sharedlibrary " + dotEscape(moduleName));
    reloadModules();
}

void GdbEngine::loadAllSymbols()
{
    sendCommand("sharedlibrary .*");
    reloadModules();
}

void GdbEngine::reloadModules()
{
    sendCommand("info shared", ModulesList, QVariant());
}

void GdbEngine::handleModulesList(const GdbResultRecord &record)
{
    QList<Module> modules;
    if (record.resultClass == GdbResultDone) {
        QString data = record.data.findChild("consolestreamoutput").data();
        QTextStream ts(&data, QIODevice::ReadOnly);
        while (!ts.atEnd()) {
            QString line = ts.readLine();
            if (!line.startsWith("0x"))
                continue;
            Module module;
            QString symbolsRead;
            QTextStream ts(&line, QIODevice::ReadOnly);
            ts >> module.startAddress >> module.endAddress >> symbolsRead;
            module.moduleName = ts.readLine().trimmed();
            module.symbolsRead = (symbolsRead == "Yes");
            modules.append(module);
        }
    }
    qq->modulesHandler()->setModules(modules);
}


//////////////////////////////////////////////////////////////////////
//
// Stack specific stuff
//
//////////////////////////////////////////////////////////////////////

void GdbEngine::handleStackSelectThread(const GdbResultRecord &record, int)
{
    Q_UNUSED(record);
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    //qDebug("FIXME: StackHandler::handleOutput: SelectThread");
    q->showStatusMessage(tr("Retrieving data for stack view..."), 3000);
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    sendCommand("-stack-list-frames", StackListFrames);
}


void GdbEngine::handleStackListFrames(const GdbResultRecord &record)
{
    QList<StackFrame> stackFrames;

    const GdbMi stack = record.data.findChild("stack");
    QString dummy = stack.toString();
    if (!stack.isValid()) {
        qDebug() << "FIXME: stack: " << stack.toString();
        return;
    }

    int topFrame = -1;

    for (int i = 0; i != stack.childCount(); ++i) {
        //qDebug() << "HANDLING FRAME: " << stack.childAt(i).toString();
        const GdbMi frameMi = stack.childAt(i);
        StackFrame frame;
        frame.level = i;
        QStringList files;
        files.append(frameMi.findChild("fullname").data());
        files.append(frameMi.findChild("file").data());
        frame.file = fullName(files);
        frame.function = frameMi.findChild("func").data();
        frame.from = frameMi.findChild("from").data();
        frame.line = frameMi.findChild("line").data().toInt();
        frame.address = frameMi.findChild("addr").data();

        stackFrames.append(frame);

#ifdef Q_OS_WIN
        const bool isBogus =
            // Assume this is wrong and points to some strange stl_algobase
            // implementation. Happens on Karsten's XP system with Gdb 5.50
            (frame.file.endsWith("/bits/stl_algobase.h") && frame.line == 150)
            // Also wrong. Happens on Vista with Gdb 5.50
               || (frame.function == "operator new" && frame.line == 151);

        // immediately leave bogus frames
        if (topFrame == -1 && isBogus) {
            sendCommand("-exec-finish");
            return;
        }

#endif

        // Initialize top frame to the first valid frame
        const bool isValid = !frame.file.isEmpty() && !frame.function.isEmpty();
        if (isValid && topFrame == -1)
            topFrame = i;
    }

    qq->stackHandler()->setFrames(stackFrames);

#if 0
    if (0 && topFrame != -1) {
        // updates of locals already triggered early
        const StackFrame &frame = qq->stackHandler()->currentFrame();
        bool usable = !frame.file.isEmpty() && QFileInfo(frame.file).isReadable();
        if (usable)
            q->gotoLocation(frame.file, frame.line, true);
        else
            qDebug() << "FULL NAME NOT USABLE 0: " << frame.file;
    } else {
        activateFrame(topFrame);
    }
#else
    if (topFrame != -1) {
        // updates of locals already triggered early
        const StackFrame &frame = qq->stackHandler()->currentFrame();
        bool usable = !frame.file.isEmpty() && QFileInfo(frame.file).isReadable();
        if (usable)
            q->gotoLocation(frame.file, frame.line, true);
        else
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            qDebug() << "FULL NAME NOT USABLE 0: " << frame.file << topFrame;
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    }
#endif
}

void GdbEngine::selectThread(int index)
{
    //reset location arrow
    q->resetLocation();

    ThreadsHandler *threadsHandler = qq->threadsHandler();
    threadsHandler->setCurrentThread(index);

    QList<ThreadData> threads = threadsHandler->threads();
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    QTC_ASSERT(index < threads.size(), return);
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    int id = threads.at(index).id;
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    q->showStatusMessage(tr("Retrieving data for stack view..."), 10000);
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    sendCommand(QLatin1String("-thread-select ") + QString::number(id),
        StackSelectThread);
}

void GdbEngine::activateFrame(int frameIndex)
{
    if (q->status() != DebuggerInferiorStopped)
        return;

    StackHandler *stackHandler = qq->stackHandler();
    int oldIndex = stackHandler->currentIndex();
    //qDebug() << "ACTIVATE FRAME: " << frameIndex << oldIndex
    //    << stackHandler->currentIndex();

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    QTC_ASSERT(frameIndex < stackHandler->stackSize(), return);
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