debuggerengine.cpp

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
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** accordance with the commercial license agreement provided with the
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**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/

#include "debuggerengine.h"

#include "debuggerinternalconstants.h"
#include "debuggeractions.h"
#include "debuggercore.h"
#include "debuggericons.h"
#include "debuggerruncontrol.h"
#include "debuggerstartparameters.h"
#include "debuggertooltipmanager.h"

#include "breakhandler.h"
#include "disassembleragent.h"
#include "logwindow.h"
#include "memoryagent.h"
#include "moduleshandler.h"
#include "registerhandler.h"
#include "sourcefileshandler.h"
#include "sourceutils.h"
#include "stackhandler.h"
#include "terminal.h"
#include "threadshandler.h"
#include "watchhandler.h"
#include "debugger/shared/peutils.h"
#include "console/console.h"

#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/icore.h>
#include <coreplugin/idocument.h>
#include <coreplugin/messagebox.h>
#include <coreplugin/progressmanager/progressmanager.h>
#include <coreplugin/progressmanager/futureprogress.h>

#include <projectexplorer/projectexplorer.h>
#include <projectexplorer/taskhub.h>

#include <texteditor/texteditor.h>

#include <utils/fileinprojectfinder.h>
#include <utils/macroexpander.h>
#include <utils/qtcassert.h>
#include <utils/savedaction.h>

#include <QDebug>
#include <QTimer>
#include <QFileInfo>
#include <QDir>

#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonValue>

using namespace Core;
using namespace Debugger::Internal;
using namespace ProjectExplorer;
using namespace TextEditor;

//#define WITH_BENCHMARK
#ifdef WITH_BENCHMARK
#include <valgrind/callgrind.h>
#endif

// VariableManager Prefix
const char PrefixDebugExecutable[]  = "DebuggedExecutable";

namespace Debugger {

QDebug operator<<(QDebug d, DebuggerState state)
{
    //return d << DebuggerEngine::stateName(state) << '(' << int(state) << ')';
    return d << DebuggerEngine::stateName(state);
}

QDebug operator<<(QDebug str, const DebuggerRunParameters &sp)
{
    QDebug nospace = str.nospace();
    nospace << "executable=" << sp.inferior.executable
            << " coreFile=" << sp.coreFile
            << " processArgs=" << sp.inferior.commandLineArguments
            << " inferior environment=<" << sp.inferior.environment.size() << " variables>"
            << " debugger environment=<" << sp.debuggerEnvironment.size() << " variables>"
            << " workingDir=" << sp.inferior.workingDirectory
            << " attachPID=" << sp.attachPID
            << " useTerminal=" << sp.useTerminal
            << " remoteChannel=" << sp.remoteChannel
            << " serverStartScript=" << sp.serverStartScript
            << " abi=" << sp.toolChainAbi.toString() << '\n';
    return str;
}

namespace Internal {

Location::Location(const StackFrame &frame, bool marker)
{
    init();
    m_fileName = frame.file;
    m_lineNumber = frame.line;
    m_needsMarker = marker;
    m_functionName = frame.function;
    m_hasDebugInfo = frame.isUsable();
    m_address = frame.address;
    m_from = frame.module;
}


LocationMark::LocationMark(DebuggerEngine *engine, const QString &file, int line)
    : TextMark(file, line, Constants::TEXT_MARK_CATEGORY_LOCATION), m_engine(engine)
{
    setIcon(Icons::LOCATION.icon());
    setPriority(TextMark::HighPriority);
}

bool LocationMark::isDraggable() const
{
    return m_engine->hasCapability(JumpToLineCapability);
}

void LocationMark::dragToLine(int line)
{
    if (m_engine) {
        if (BaseTextEditor *textEditor = BaseTextEditor::currentTextEditor()) {
            ContextData location = getLocationContext(textEditor->textDocument(), line);
            if (location.isValid())
                m_engine->executeJumpToLine(location);
        }
    }
}

//////////////////////////////////////////////////////////////////////
//
// DebuggerEnginePrivate
//
//////////////////////////////////////////////////////////////////////

// transitions:
//   None->Requested
//   Requested->Succeeded
//   Requested->Failed
//   Requested->Cancelled
enum RemoteSetupState { RemoteSetupNone, RemoteSetupRequested,
                        RemoteSetupSucceeded, RemoteSetupFailed,
                        RemoteSetupCancelled };

class DebuggerEnginePrivate : public QObject
{
    Q_OBJECT

public:
    DebuggerEnginePrivate(DebuggerEngine *engine, const DebuggerRunParameters &sp)
      : m_engine(engine),
        m_masterEngine(0),
        m_runControl(0),
        m_runParameters(sp),
        m_state(DebuggerNotReady),
        m_lastGoodState(DebuggerNotReady),
        m_targetState(DebuggerNotReady),
        m_remoteSetupState(RemoteSetupNone),
        m_inferiorPid(0),
        m_modulesHandler(engine),
        m_registerHandler(engine),
        m_sourceFilesHandler(),
        m_stackHandler(engine),
        m_threadsHandler(),
        m_watchHandler(engine),
        m_disassemblerAgent(engine),
        m_memoryAgent(engine),
        m_isStateDebugging(false)
    {
        connect(&m_locationTimer, &QTimer::timeout,
                this, &DebuggerEnginePrivate::resetLocation);
        connect(action(IntelFlavor), &Utils::SavedAction::valueChanged,
                this, &DebuggerEnginePrivate::reloadDisassembly);

        Utils::globalMacroExpander()->registerFileVariables(PrefixDebugExecutable,
            tr("Debugged executable"),
            [this] { return m_runParameters.inferior.executable; });
    }

    void doSetupEngine();
    void doSetupInferior();
    void doRunEngine();
    void doShutdownEngine();
    void doShutdownInferior();
    void doInterruptInferior();
    void doFinishDebugger();

    void reloadDisassembly()
    {
        m_disassemblerAgent.reload();
    }

    void queueSetupEngine()
    {
        m_engine->setState(EngineSetupRequested);
        m_engine->showMessage("QUEUE: SETUP ENGINE");
        QTimer::singleShot(0, this, &DebuggerEnginePrivate::doSetupEngine);
    }

    void queueSetupInferior()
    {
        m_engine->setState(InferiorSetupRequested);
        m_engine->showMessage("QUEUE: SETUP INFERIOR");
        QTimer::singleShot(0, this, &DebuggerEnginePrivate::doSetupInferior);
    }

    void queueRunEngine()
    {
        m_engine->setState(EngineRunRequested);
        m_engine->showMessage("QUEUE: RUN ENGINE");
        QTimer::singleShot(0, this, &DebuggerEnginePrivate::doRunEngine);
    }

    void queueShutdownEngine()
    {
        m_engine->setState(EngineShutdownRequested);
        m_engine->showMessage("QUEUE: SHUTDOWN ENGINE");
        QTimer::singleShot(0, this, &DebuggerEnginePrivate::doShutdownEngine);
    }

    void queueShutdownInferior()
    {
        m_engine->setState(InferiorShutdownRequested);
        m_engine->showMessage("QUEUE: SHUTDOWN INFERIOR");
        QTimer::singleShot(0, this, &DebuggerEnginePrivate::doShutdownInferior);
    }

    void queueFinishDebugger()
    {
        QTC_ASSERT(state() == EngineShutdownOk
            || state() == EngineShutdownFailed, qDebug() << state());
        m_engine->setState(DebuggerFinished);
        resetLocation();
        if (isMasterEngine()) {
            m_engine->showMessage("QUEUE: FINISH DEBUGGER");
            QTimer::singleShot(0, this, &DebuggerEnginePrivate::doFinishDebugger);
        }
    }

    void raiseApplication()
    {
        QTC_ASSERT(runControl(), return);
        runControl()->bringApplicationToForeground(m_inferiorPid);
    }

    void scheduleResetLocation()
    {
        m_stackHandler.scheduleResetLocation();
        m_watchHandler.scheduleResetLocation();
        m_threadsHandler.scheduleResetLocation();
        m_disassemblerAgent.scheduleResetLocation();
        m_locationTimer.setSingleShot(true);
        m_locationTimer.start(80);
    }

    void resetLocation()
    {
        m_lookupRequests.clear();
        m_locationTimer.stop();
        m_locationMark.reset();
        m_stackHandler.resetLocation();
        m_watchHandler.resetLocation();
        m_threadsHandler.resetLocation();
        m_disassemblerAgent.resetLocation();
        DebuggerToolTipManager::resetLocation();
    }

public:
    DebuggerState state() const { return m_state; }
    RemoteSetupState remoteSetupState() const { return m_remoteSetupState; }
    bool isMasterEngine() const { return m_engine->isMasterEngine(); }
    DebuggerRunControl *runControl() const
        { return m_masterEngine ? m_masterEngine->runControl() : m_runControl; }
    void setRemoteSetupState(RemoteSetupState state);

    DebuggerEngine *m_engine; // Not owned.
    DebuggerEngine *m_masterEngine; // Not owned
    DebuggerRunControl *m_runControl;  // Not owned.

    DebuggerRunParameters m_runParameters;

    // The current state.
    DebuggerState m_state;

    // The state we had before something unexpected happend.
    DebuggerState m_lastGoodState;

    // The state we are aiming for.
    DebuggerState m_targetState;

    // State of RemoteSetup signal/slots.
    RemoteSetupState m_remoteSetupState;

    Terminal m_terminal;
    qint64 m_inferiorPid;

    ModulesHandler m_modulesHandler;
    RegisterHandler m_registerHandler;
    SourceFilesHandler m_sourceFilesHandler;
    StackHandler m_stackHandler;
    ThreadsHandler m_threadsHandler;
    WatchHandler m_watchHandler;
    QFutureInterface<void> m_progress;

    DisassemblerAgent m_disassemblerAgent;
    MemoryAgent m_memoryAgent;
    QScopedPointer<LocationMark> m_locationMark;
    QTimer m_locationTimer;

    bool m_isStateDebugging;

    Utils::FileInProjectFinder m_fileFinder;
    QString m_qtNamespace;

    // Safety net to avoid infinite lookups.
    QSet<QString> m_lookupRequests; // FIXME: Integrate properly.
};


//////////////////////////////////////////////////////////////////////
//
// DebuggerEngine
//
//////////////////////////////////////////////////////////////////////

DebuggerEngine::DebuggerEngine(const DebuggerRunParameters &startParameters)
  : d(new DebuggerEnginePrivate(this, startParameters))
{}

DebuggerEngine::~DebuggerEngine()
{
    disconnect();
    delete d;
}

QString DebuggerEngine::stateName(int s)
{
#    define SN(x) case x: return QLatin1String(#x);
    switch (s) {
        SN(DebuggerNotReady)
        SN(EngineSetupRequested)
        SN(EngineSetupOk)
        SN(EngineSetupFailed)
        SN(EngineRunFailed)
        SN(InferiorSetupRequested)
        SN(InferiorSetupFailed)
        SN(InferiorSetupOk)
        SN(EngineRunRequested)
        SN(InferiorRunRequested)
        SN(InferiorRunOk)
        SN(InferiorRunFailed)
        SN(InferiorUnrunnable)
        SN(InferiorStopRequested)
        SN(InferiorStopOk)
        SN(InferiorStopFailed)
        SN(InferiorShutdownRequested)
        SN(InferiorShutdownOk)
        SN(InferiorShutdownFailed)
        SN(EngineShutdownRequested)
        SN(EngineShutdownOk)
        SN(EngineShutdownFailed)
        SN(DebuggerFinished)
    }
    return QLatin1String("<unknown>");
#    undef SN
}

void DebuggerEngine::showStatusMessage(const QString &msg, int timeout) const
{
    showMessage(msg, StatusBar, timeout);
}

void DebuggerEngine::frameUp()
{
    int currentIndex = stackHandler()->currentIndex();
    activateFrame(qMin(currentIndex + 1, stackHandler()->stackSize() - 1));
}

void DebuggerEngine::frameDown()
{
    int currentIndex = stackHandler()->currentIndex();
    activateFrame(qMax(currentIndex - 1, 0));
}

void DebuggerEngine::doUpdateLocals(const UpdateParameters &)
{
}

void DebuggerEngine::setTargetState(DebuggerState state)
{
    d->m_targetState = state;
}

ModulesHandler *DebuggerEngine::modulesHandler() const
{
    return d->m_masterEngine
        ? d->m_masterEngine->modulesHandler()
        : &d->m_modulesHandler;
}

RegisterHandler *DebuggerEngine::registerHandler() const
{
    return d->m_masterEngine
        ? d->m_masterEngine->registerHandler()
        : &d->m_registerHandler;
}

StackHandler *DebuggerEngine::stackHandler() const
{
    return d->m_masterEngine
        ? d->m_masterEngine->stackHandler()
        : &d->m_stackHandler;
}

ThreadsHandler *DebuggerEngine::threadsHandler() const
{
    return d->m_masterEngine
        ? d->m_masterEngine->threadsHandler()
        : &d->m_threadsHandler;
}

WatchHandler *DebuggerEngine::watchHandler() const
{
    return d->m_masterEngine
        ? d->m_masterEngine->watchHandler()
        : &d->m_watchHandler;
}

SourceFilesHandler *DebuggerEngine::sourceFilesHandler() const
{
    return d->m_masterEngine
        ? d->m_masterEngine->sourceFilesHandler()
        : &d->m_sourceFilesHandler;
}

QAbstractItemModel *DebuggerEngine::modulesModel() const
{
   return modulesHandler()->model();
}

QAbstractItemModel *DebuggerEngine::registerModel() const
{
    return registerHandler()->model();
}

QAbstractItemModel *DebuggerEngine::stackModel() const
{
    return stackHandler()->model();
}

QAbstractItemModel *DebuggerEngine::threadsModel() const
{
    return threadsHandler()->model();
}

QAbstractItemModel *DebuggerEngine::watchModel() const
{
    return watchHandler()->model();
}

QAbstractItemModel *DebuggerEngine::sourceFilesModel() const
{
    return sourceFilesHandler()->model();
}

void DebuggerEngine::fetchMemory(MemoryAgent *, QObject *,
        quint64 addr, quint64 length)
{
    Q_UNUSED(addr);
    Q_UNUSED(length);
}

void DebuggerEngine::changeMemory(MemoryAgent *, QObject *,
        quint64 addr, const QByteArray &data)
{
    Q_UNUSED(addr);
    Q_UNUSED(data);
}

void DebuggerEngine::setRegisterValue(const QString &name, const QString &value)
{
    Q_UNUSED(name);
    Q_UNUSED(value);
}

static Utils::OutputFormat outputFormatForChannelType(int channel)
{
    switch (channel) {
    case AppOutput: return Utils::StdOutFormatSameLine;
    case AppError: return Utils::StdErrFormatSameLine;
    case AppStuff: return Utils::DebugFormat;
    default: return Utils::NumberOfFormats;
    }
}

void DebuggerEngine::showMessage(const QString &msg, int channel, int timeout) const
{
    if (d->m_masterEngine) {
        d->m_masterEngine->showMessage(msg, channel, timeout);
        return;
    }
    //if (msg.size() && msg.at(0).isUpper() && msg.at(1).isUpper())
    //    qDebug() << qPrintable(msg) << "IN STATE" << state();
    if (channel == ConsoleOutput)
        debuggerConsole()->printItem(ConsoleItem::DefaultType, msg);

    Internal::showMessage(msg, channel, timeout);
    switch (channel) {
    case AppOutput:
    case AppError:
    case AppStuff:
        if (d->m_runControl)
            d->m_runControl->appendMessage(msg, outputFormatForChannelType(channel));
        else
            qWarning("Warning: %s (no active run control)", qPrintable(msg));
        break;
    default:
        break;
    }
}

void DebuggerEngine::startDebugger(DebuggerRunControl *runControl)
{
    QTC_ASSERT(runControl, notifyEngineSetupFailed(); return);
    QTC_ASSERT(!d->m_runControl, notifyEngineSetupFailed(); return);

    d->m_progress.setProgressRange(0, 1000);
    FutureProgress *fp = ProgressManager::addTask(d->m_progress.future(),
        tr("Launching Debugger"), "Debugger.Launcher");
    connect(fp, &FutureProgress::canceled, this, &DebuggerEngine::quitDebugger);
    fp->setKeepOnFinish(FutureProgress::HideOnFinish);
    d->m_progress.reportStarted();

    d->m_runControl = runControl;

    d->m_inferiorPid = d->m_runParameters.attachPID > 0
        ? d->m_runParameters.attachPID : 0;
    if (d->m_inferiorPid)
        d->m_runControl->setApplicationProcessHandle(ProcessHandle(d->m_inferiorPid));

    if (isNativeMixedActive())
        d->m_runParameters.inferior.environment.set("QV4_FORCE_INTERPRETER", "1");

    action(OperateByInstruction)->setEnabled(hasCapability(DisassemblerCapability));

    QTC_ASSERT(state() == DebuggerNotReady || state() == DebuggerFinished,
         qDebug() << state());
    d->m_lastGoodState = DebuggerNotReady;
    d->m_targetState = DebuggerNotReady;
    d->m_progress.setProgressValue(200);

    d->m_terminal.setup();
    if (d->m_terminal.isUsable()) {
        connect(&d->m_terminal, &Terminal::stdOutReady, [this, runControl](const QString &msg) {
            runControl->appendMessage(msg, Utils::StdOutFormatSameLine);
        });
        connect(&d->m_terminal, &Terminal::stdErrReady, [this, runControl](const QString &msg) {
            runControl->appendMessage(msg, Utils::StdErrFormatSameLine);
        });
        connect(&d->m_terminal, &Terminal::error, [this, runControl](const QString &msg) {
            runControl->appendMessage(msg, Utils::ErrorMessageFormat);
        });
    }

    d->queueSetupEngine();
}

void DebuggerEngine::resetLocation()
{
    // Do it after some delay to avoid flicker.
    d->scheduleResetLocation();
}

void DebuggerEngine::gotoLocation(const Location &loc)
{
     d->resetLocation();

    if (loc.canBeDisassembled()
            && ((hasCapability(OperateByInstructionCapability) && boolSetting(OperateByInstruction))
                || !loc.hasDebugInfo()) )
    {
        d->m_disassemblerAgent.setLocation(loc);
        return;
    }

    if (loc.fileName().isEmpty()) {
        showMessage("CANNOT GO TO THIS LOCATION");
        return;
    }
    const QString file = QDir::cleanPath(loc.fileName());
    const int line = loc.lineNumber();
    bool newEditor = false;
    IEditor *editor = EditorManager::openEditor(file, Id(),
                                                EditorManager::IgnoreNavigationHistory, &newEditor);
    QTC_ASSERT(editor, return); // Unreadable file?

    editor->gotoLine(line, 0, !boolSetting(StationaryEditorWhileStepping));

    if (newEditor)
        editor->document()->setProperty(Constants::OPENED_BY_DEBUGGER, true);

    if (loc.needsMarker())
        d->m_locationMark.reset(new LocationMark(this, file, line));

    //qDebug() << "MEMORY: " << d->m_memoryAgent.hasVisibleEditor();
}

// Called from RunControl.
void DebuggerEngine::handleStartFailed()
{
    showMessage("HANDLE RUNCONTROL START FAILED");
    d->m_runControl = 0;
    d->m_progress.setProgressValue(900);
    d->m_progress.reportCanceled();
    d->m_progress.reportFinished();
}

// Called from RunControl.
void DebuggerEngine::handleFinished()
{
    showMessage("HANDLE RUNCONTROL FINISHED");
    d->m_runControl = 0;
    d->m_progress.setProgressValue(1000);
    d->m_progress.reportFinished();
    modulesHandler()->removeAll();
    stackHandler()->removeAll();
    threadsHandler()->removeAll();
    watchHandler()->cleanup();
}

const DebuggerRunParameters &DebuggerEngine::runParameters() const
{
    return d->m_runParameters;
}

DebuggerRunParameters &DebuggerEngine::runParameters()
{
    return d->m_runParameters;
}

DebuggerState DebuggerEngine::state() const
{
    return d->m_state;
}

DebuggerState DebuggerEngine::lastGoodState() const
{
    return d->m_lastGoodState;
}

DebuggerState DebuggerEngine::targetState() const
{
    return d->m_targetState;
}

static bool isAllowedTransition(DebuggerState from, DebuggerState to)
{
    switch (from) {
    case DebuggerNotReady:
        return to == EngineSetupRequested;

    case EngineSetupRequested:
        return to == EngineSetupOk || to == EngineSetupFailed;
    case EngineSetupFailed:
        // In is the engine's task to go into a proper "Shutdown"
        // state before calling notifyEngineSetupFailed
        return to == DebuggerFinished;
    case EngineSetupOk:
        return to == InferiorSetupRequested || to == EngineShutdownRequested;

    case InferiorSetupRequested:
        return to == InferiorSetupOk || to == InferiorSetupFailed;
    case InferiorSetupFailed:
        return to == EngineShutdownRequested;
    case InferiorSetupOk:
        return to == EngineRunRequested;

    case EngineRunRequested:
        return to == EngineRunFailed
            || to == InferiorRunRequested
            || to == InferiorRunOk
            || to == InferiorStopOk
            || to == InferiorUnrunnable;
    case EngineRunFailed:
        return to == EngineShutdownRequested;

    case InferiorRunRequested:
        return to == InferiorRunOk || to == InferiorRunFailed;
    case InferiorRunFailed:
        return to == InferiorStopOk;
    case InferiorRunOk:
        return to == InferiorStopRequested
            || to == InferiorStopOk       // A spontaneous stop.
            || to == InferiorShutdownOk;  // A spontaneous exit.

    case InferiorStopRequested:
        return to == InferiorStopOk || to == InferiorStopFailed;
    case InferiorStopOk:
        return to == InferiorRunRequested || to == InferiorShutdownRequested
            || to == InferiorStopOk || to == InferiorShutdownOk;
    case InferiorStopFailed:
        return to == EngineShutdownRequested;

    case InferiorUnrunnable:
        return to == InferiorShutdownRequested;
    case InferiorShutdownRequested:
        return to == InferiorShutdownOk || to == InferiorShutdownFailed;
    case InferiorShutdownOk:
        return to == EngineShutdownRequested;
    case InferiorShutdownFailed:
        return to == EngineShutdownRequested;

    case EngineShutdownRequested:
        return to == EngineShutdownOk || to == EngineShutdownFailed;
    case EngineShutdownOk:
        return to == DebuggerFinished;
    case EngineShutdownFailed:
        return to == DebuggerFinished;

    case DebuggerFinished:
        return to == EngineSetupRequested; // Happens on restart.
    }

    qDebug() << "UNKNOWN DEBUGGER STATE:" << from;
    return false;
}

void DebuggerEngine::setupSlaveEngine()
{
    QTC_CHECK(state() == DebuggerNotReady);
    d->queueSetupEngine();
}

void DebuggerEnginePrivate::doSetupEngine()
{
    m_engine->showMessage("CALL: SETUP ENGINE");
    QTC_ASSERT(state() == EngineSetupRequested, qDebug() << m_engine << state());
    m_engine->validateExecutable(&m_runParameters);
    m_engine->setupEngine();
}

void DebuggerEngine::notifyEngineSetupFailed()
{
    showMessage("NOTE: ENGINE SETUP FAILED");
    QTC_ASSERT(d->remoteSetupState() == RemoteSetupNone
               || d->remoteSetupState() == RemoteSetupRequested
               || d->remoteSetupState() == RemoteSetupSucceeded,
               qDebug() << this << "remoteSetupState" << d->remoteSetupState());
    if (d->remoteSetupState() == RemoteSetupRequested)
        d->setRemoteSetupState(RemoteSetupCancelled);

    QTC_ASSERT(state() == EngineSetupRequested, qDebug() << this << state());
    setState(EngineSetupFailed);
    if (isMasterEngine() && runControl())
        runControl()->startFailed();
    setState(DebuggerFinished);
}

void DebuggerEngine::notifyEngineSetupOk()
{
    showMessage("NOTE: ENGINE SETUP OK");
    QTC_ASSERT(d->remoteSetupState() == RemoteSetupNone
               || d->remoteSetupState() == RemoteSetupSucceeded,
               qDebug() << this << "remoteSetupState" << d->remoteSetupState());

    QTC_ASSERT(state() == EngineSetupRequested, qDebug() << this << state());
    setState(EngineSetupOk);
    showMessage("QUEUE: SETUP INFERIOR");
    if (isMasterEngine())
        d->queueSetupInferior();
}

void DebuggerEngine::setupSlaveInferior()
{
    QTC_CHECK(state() == EngineSetupOk);
    d->queueSetupInferior();
}

void DebuggerEnginePrivate::doSetupInferior()
{
    m_engine->showMessage("CALL: SETUP INFERIOR");
    QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << m_engine << state());
    m_progress.setProgressValue(250);
    m_engine->setupInferior();
}

void DebuggerEngine::notifyInferiorSetupFailed()
{
    showMessage("NOTE: INFERIOR SETUP FAILED");
    QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << this << state());
    showStatusMessage(tr("Setup failed."));
    setState(InferiorSetupFailed);
    if (isMasterEngine())
        d->queueShutdownEngine();
}

void DebuggerEngine::notifyInferiorSetupOk()
{
#ifdef WITH_BENCHMARK
    CALLGRIND_START_INSTRUMENTATION;
#endif
    aboutToNotifyInferiorSetupOk();
    showMessage("NOTE: INFERIOR SETUP OK");
    QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << this << state());
    setState(InferiorSetupOk);
    if (isMasterEngine())
        d->queueRunEngine();
}

void DebuggerEngine::runSlaveEngine()
{
    QTC_ASSERT(isSlaveEngine(), return);
    QTC_CHECK(state() == InferiorSetupOk);
    d->queueRunEngine();
}

void DebuggerEnginePrivate::doRunEngine()
{
    m_engine->showMessage("CALL: RUN ENGINE");
    QTC_ASSERT(state() == EngineRunRequested, qDebug() << m_engine << state());
    m_progress.setProgressValue(300);
    m_engine->runEngine();
}

void DebuggerEngine::notifyEngineRunOkAndInferiorUnrunnable()
{
    showMessage("NOTE: INFERIOR UNRUNNABLE");
    d->m_progress.setProgressValue(1000);
    d->m_progress.reportFinished();
    QTC_ASSERT(state() == EngineRunRequested, qDebug() << this << state());
    showStatusMessage(tr("Loading finished."));
    setState(InferiorUnrunnable);
}

void DebuggerEngine::notifyEngineRunFailed()
{