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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "termgdbadapter.h"
#include "debuggerstartparameters.h"
#include "gdbmi.h"
#include "gdbengine.h"
#include "procinterrupt.h"
#include "debuggerstringutils.h"
#include "debuggercore.h"
#include "shared/hostutils.h"
#include <utils/qtcassert.h>
#include <coreplugin/icore.h>
#include <QMessageBox>
namespace Debugger {
namespace Internal {
#define CB(callback) \
static_cast<GdbEngine::GdbCommandCallback>(&GdbTermEngine::callback), \
STRINGIFY(callback)
///////////////////////////////////////////////////////////////////////
//
// TermGdbAdapter
//
///////////////////////////////////////////////////////////////////////
GdbTermEngine::GdbTermEngine(const DebuggerStartParameters &startParameters)
: GdbEngine(startParameters)
{
#ifdef Q_OS_WIN
// Windows up to xp needs a workaround for attaching to freshly started processes. see proc_stub_win
if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA) {
m_stubProc.setMode(Utils::ConsoleProcess::Suspend);
} else {
m_stubProc.setMode(Utils::ConsoleProcess::Debug);
}
#else
m_stubProc.setMode(Utils::ConsoleProcess::Debug);
m_stubProc.setSettings(Core::ICore::settings());
#endif
}
GdbTermEngine::~GdbTermEngine()
{
m_stubProc.disconnect(); // Avoid spurious state transitions from late exiting stub
}
GdbEngine::DumperHandling GdbTermEngine::dumperHandling() const
{
// LD_PRELOAD fails for System-Qt on Mac.
#if defined(Q_OS_WIN) || defined(Q_OS_MAC)
return DumperLoadedByGdb;
#else
return DumperLoadedByAdapter; // Handles loading itself via LD_PRELOAD
#endif
}
void GdbTermEngine::setupEngine()
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage(_("TRYING TO START ADAPTER"));
// Currently, adapters are not re-used
// // We leave the console open, so recycle it now.
// m_stubProc.blockSignals(true);
// m_stubProc.stop();
// m_stubProc.blockSignals(false);
if (!prepareCommand())
return;
m_stubProc.setWorkingDirectory(startParameters().workingDirectory);
// Set environment + dumper preload.
m_stubProc.setEnvironment(startParameters().environment);
connect(&m_stubProc, SIGNAL(processError(QString)), SLOT(stubError(QString)));
connect(&m_stubProc, SIGNAL(processStarted()), SLOT(stubStarted()));
connect(&m_stubProc, SIGNAL(wrapperStopped()), SLOT(stubExited()));
// FIXME: Starting the stub implies starting the inferior. This is
// fairly unclean as far as the state machine and error reporting go.
if (!m_stubProc.start(startParameters().executable,
startParameters().processArgs)) {
// Error message for user is delivered via a signal.
handleAdapterStartFailed(QString());
return;
}
}
void GdbTermEngine::stubStarted()
{
startGdb();
}
void GdbTermEngine::handleGdbStartFailed()
{
m_stubProc.stop();
}
void GdbTermEngine::setupInferior()
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
const qint64 attachedPID = m_stubProc.applicationPID();
#ifdef Q_OS_WIN
const qint64 attachedMainThreadID = m_stubProc.applicationMainThreadID();
showMessage(QString::fromLatin1("Attaching to %1 (%2)").arg(attachedPID).arg(attachedMainThreadID), LogMisc);
#else
showMessage(QString::fromLatin1("Attaching to %1").arg(attachedPID), LogMisc);
#endif
notifyInferiorPid(attachedPID);
postCommand("attach " + QByteArray::number(attachedPID),
CB(handleStubAttached));
}
void GdbTermEngine::handleStubAttached(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
#ifdef Q_OS_WIN
QString errorMessage;
#endif // Q_OS_WIN
switch (response.resultClass) {
case GdbResultDone:
case GdbResultRunning:
#ifdef Q_OS_WIN
// Resume thread that was suspended by console stub process (see stub code).
if (winResumeThread(m_stubProc.applicationMainThreadID(), &errorMessage)) {
showMessage(QString::fromLatin1("Inferior attached, thread %1 resumed").
arg(m_stubProc.applicationMainThreadID()), LogMisc);
} else {
showMessage(QString::fromLatin1("Inferior attached, unable to resume thread %1: %2").
arg(m_stubProc.applicationMainThreadID()).arg(errorMessage),
LogWarning);
}
#else
showMessage(_("INFERIOR ATTACHED"));
#endif // Q_OS_WIN
handleInferiorPrepared();
break;
case GdbResultError:
if (response.data.findChild("msg").data() == "ptrace: Operation not permitted.") {
notifyInferiorSetupFailed(DumperHelper::msgPtraceError(startParameters().startMode));
break;
}
notifyInferiorSetupFailed(QString::fromLocal8Bit(response.data.findChild("msg").data()));
break;
default:
notifyInferiorSetupFailed(QString::fromLatin1("Invalid response %1").arg(response.resultClass));
break;
}
}
void GdbTermEngine::runEngine()
{
QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
notifyEngineRunAndInferiorStopOk();
continueInferiorInternal();
}
void GdbTermEngine::interruptInferior2()
{
interruptLocalInferior(inferiorPid());
}
void GdbTermEngine::stubError(const QString &msg)
{
showMessageBox(QMessageBox::Critical, tr("Debugger Error"), msg);
}
void GdbTermEngine::stubExited()
{
if (state() == EngineShutdownRequested || state() == DebuggerFinished) {
showMessage(_("STUB EXITED EXPECTEDLY"));
return;
}
showMessage(_("STUB EXITED"));
notifyEngineIll();
}
void GdbTermEngine::shutdownEngine()
{
notifyAdapterShutdownOk();
}
} // namespace Internal
} // namespace Debugger
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