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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "plaingdbadapter.h"
#include "gdbengine.h"
#include "procinterrupt.h"
#include "debuggerstringutils.h"
#include <utils/qtcassert.h>
#include <QtCore/QFileInfo>
namespace Debugger {
namespace Internal {
#define CB(callback) \
static_cast<GdbEngine::AdapterCallback>(&PlainGdbAdapter::callback), \
STRINGIFY(callback)
///////////////////////////////////////////////////////////////////////
//
// PlainGdbAdapter
//
///////////////////////////////////////////////////////////////////////
PlainGdbAdapter::PlainGdbAdapter(GdbEngine *engine, QObject *parent)
: AbstractGdbAdapter(engine, parent)
{
// Output
connect(&m_outputCollector, SIGNAL(byteDelivery(QByteArray)),
engine, SLOT(readDebugeeOutput(QByteArray)));
}
AbstractGdbAdapter::DumperHandling PlainGdbAdapter::dumperHandling() const
{
// LD_PRELOAD fails for System-Qt on Mac.
#if defined(Q_OS_WIN) || defined(Q_OS_MAC)
return DumperLoadedByGdb;
#else
return DumperLoadedByGdbPreload;
#endif
}
void PlainGdbAdapter::startAdapter()
{
QTC_ASSERT(state() == EngineStarting, qDebug() << state());
setState(AdapterStarting);
debugMessage(_("TRYING TO START ADAPTER"));
QStringList gdbArgs;
if (!m_outputCollector.listen()) {
emit adapterStartFailed(tr("Cannot set up communication with child process: %1")
.arg(m_outputCollector.errorString()), QString());
return;
}
gdbArgs.append(_("--tty=") + m_outputCollector.serverName());
if (!startParameters().workingDir.isEmpty())
m_engine->m_gdbProc.setWorkingDirectory(startParameters().workingDir);
if (!startParameters().environment.isEmpty())
m_engine->m_gdbProc.setEnvironment(startParameters().environment);
if (!m_engine->startGdb(gdbArgs)) {
m_outputCollector.shutdown();
return;
}
emit adapterStarted();
}
void PlainGdbAdapter::startInferior()
{
QTC_ASSERT(state() == InferiorStarting, qDebug() << state());
if (!startParameters().processArgs.isEmpty()) {
QString args = startParameters().processArgs.join(_(" "));
m_engine->postCommand("-exec-arguments " + args.toLocal8Bit());
}
QFileInfo fi(startParameters().executable);
QByteArray path = fi.absoluteFilePath().toLocal8Bit();
m_engine->postCommand("-file-exec-and-symbols \"" + path + '"',
CB(handleFileExecAndSymbols));
}
void PlainGdbAdapter::handleFileExecAndSymbols(const GdbResponse &response)
{
QTC_ASSERT(state() == InferiorStarting, qDebug() << state());
if (response.resultClass == GdbResultDone) {
#ifdef Q_OS_LINUX
// Old gdbs do not announce the PID for programs without pthreads.
// Note that successfully preloading the debugging helpers will
// automatically load pthreads, so this will be unnecessary.
if (m_engine->m_gdbVersion < 70000)
m_engine->postCommand("info target", CB(handleInfoTarget));
#endif
emit inferiorPrepared();
} else {
QString msg = tr("Starting executable failed:\n") +
QString::fromLocal8Bit(response.data.findChild("msg").data());
emit inferiorStartFailed(msg);
}
}
#ifdef Q_OS_LINUX
void PlainGdbAdapter::handleInfoTarget(const GdbResponse &response)
{
if (response.resultClass == GdbResultDone) {
// [some leading stdout here]
// >&" Entry point: 0x80831f0 0x08048134 - 0x08048147 is .interp\n"
// [some trailing stdout here]
QString msg = _(response.data.findChild("consolestreamoutput").data());
QRegExp needle(_("\\bEntry point: 0x([0-9a-f]+)\\b"));
if (needle.indexIn(msg) != -1) {
m_engine->m_entryPoint =
"0x" + needle.cap(1).toLatin1().rightJustified(sizeof(void *) * 2, '0');
m_engine->postCommand("tbreak *0x" + needle.cap(1).toAscii());
// Do nothing here - inferiorPrepared handles the sequencing.
} else {
emit inferiorStartFailed(_("Parsing start address failed"));
}
} else if (response.resultClass == GdbResultError) {
emit inferiorStartFailed(_("Fetching start address failed"));
}
}
#endif
void PlainGdbAdapter::startInferiorPhase2()
{
setState(InferiorRunningRequested);
m_engine->postCommand("-exec-run", GdbEngine::RunRequest, CB(handleExecRun));
}
void PlainGdbAdapter::handleExecRun(const GdbResponse &response)
{
if (response.resultClass == GdbResultRunning) {
QTC_ASSERT(state() == InferiorRunning, qDebug() << state());
debugMessage(_("INFERIOR STARTED"));
showStatusMessage(msgInferiorStarted());
} else {
QTC_ASSERT(state() == InferiorRunningRequested, qDebug() << state());
const QString &msg = QString::fromLocal8Bit(response.data.findChild("msg").data());
//QTC_ASSERT(status() == InferiorRunning, /**/);
//interruptInferior();
emit inferiorStartFailed(msg);
}
}
void PlainGdbAdapter::interruptInferior()
{
const qint64 attachedPID = m_engine->inferiorPid();
if (attachedPID <= 0) {
debugMessage(_("TRYING TO INTERRUPT INFERIOR BEFORE PID WAS OBTAINED"));
return;
}
if (!interruptProcess(attachedPID))
debugMessage(_("CANNOT INTERRUPT %1").arg(attachedPID));
}
void PlainGdbAdapter::shutdown()
{
debugMessage(_("PLAIN ADAPTER SHUTDOWN %1").arg(state()));
m_outputCollector.shutdown();
}
} // namespace Internal
} // namespace Debugger
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