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qt-creator/src/plugins/debugger/gdb/plaingdbadapter.cpp

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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 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 "debuggeractions.h"
#include "gdbengine.h"
#include "procinterrupt.h"
#include <utils/qtcassert.h>
#include <coreplugin/icore.h>
#include <QtCore/QFileInfo>
#include <QtGui/QMessageBox>
namespace Debugger {
namespace Internal {
#define STRINGIFY_INTERNAL(x) #x
#define STRINGIFY(x) STRINGIFY_INTERNAL(x)
#define CB(callback) \
static_cast<GdbEngine::AdapterCallback>(&PlainGdbAdapter::callback), \
STRINGIFY(callback)
///////////////////////////////////////////////////////////////////////
//
// PlainGdbAdapter
//
///////////////////////////////////////////////////////////////////////
PlainGdbAdapter::PlainGdbAdapter(GdbEngine *engine, QObject *parent)
: AbstractGdbAdapter(engine, parent)
{
QTC_ASSERT(state() == AdapterNotRunning, qDebug() << state());
connect(&m_gdbProc, SIGNAL(error(QProcess::ProcessError)),
this, SIGNAL(error(QProcess::ProcessError)));
connect(&m_gdbProc, SIGNAL(readyReadStandardOutput()),
this, SIGNAL(readyReadStandardOutput()));
connect(&m_gdbProc, SIGNAL(readyReadStandardError()),
this, SIGNAL(readyReadStandardError()));
connect(&m_gdbProc, SIGNAL(started()),
this, SLOT(handleGdbStarted()));
connect(&m_gdbProc, SIGNAL(finished(int, QProcess::ExitStatus)),
this, SLOT(handleGdbFinished(int, QProcess::ExitStatus)));
m_stubProc.setMode(Core::Utils::ConsoleProcess::Debug);
#ifdef Q_OS_UNIX
m_stubProc.setSettings(Core::ICore::instance()->settings());
#endif
connect(&m_stubProc, SIGNAL(processError(QString)),
this, SLOT(stubError(QString)));
connect(&m_stubProc, SIGNAL(processStarted()),
this, SLOT(stubStarted()));
// FIXME:
// connect(&m_stubProc, SIGNAL(wrapperStopped()),
// m_manager, SLOT(exitDebugger()));
}
void PlainGdbAdapter::startAdapter()
{
QTC_ASSERT(state() == AdapterNotRunning, qDebug() << state());
setState(AdapterStarting);
debugMessage(_("TRYING TO START ADAPTER"));
QStringList gdbArgs;
gdbArgs.prepend(_("mi"));
gdbArgs.prepend(_("-i"));
if (startParameters().useTerminal) {
m_stubProc.stop(); // We leave the console open, so recycle it now.
m_stubProc.setWorkingDirectory(startParameters().workingDir);
m_stubProc.setEnvironment(startParameters().environment);
if (!m_stubProc.start(startParameters().executable,
startParameters().processArgs)) {
// Error message for user is delivered via a signal.
emitAdapterStartFailed(QString());
return;
}
} else {
if (!m_engine->m_outputCollector.listen()) {
emitAdapterStartFailed(tr("Cannot set up communication with child process: %1")
.arg(m_engine->m_outputCollector.errorString()));
return;
}
gdbArgs.prepend(_("--tty=") + m_engine->m_outputCollector.serverName());
if (!startParameters().workingDir.isEmpty())
setWorkingDirectory(startParameters().workingDir);
if (!startParameters().environment.isEmpty())
setEnvironment(startParameters().environment);
}
QString location = theDebuggerStringSetting(GdbLocation);
//showStatusMessage(tr("Starting Debugger: ") + loc + _c(' ') + gdbArgs.join(_(" ")));
m_gdbProc.start(location, gdbArgs);
}
void PlainGdbAdapter::handleGdbStarted()
{
QTC_ASSERT(state() == AdapterStarting, qDebug() << state());
setState(AdapterStarted);
emit adapterStarted();
}
void PlainGdbAdapter::prepareInferior()
{
QTC_ASSERT(state() == AdapterStarted, qDebug() << state());
setState(InferiorPreparing);
if (!startParameters().processArgs.isEmpty())
m_engine->postCommand(_("-exec-arguments ")
+ startParameters().processArgs.join(_(" ")));
QFileInfo fi(m_engine->startParameters().executable);
m_engine->postCommand(_("-file-exec-and-symbols \"%1\"").arg(fi.absoluteFilePath()),
CB(handleFileExecAndSymbols));
}
void PlainGdbAdapter::handleFileExecAndSymbols(const GdbResultRecord &response, const QVariant &)
{
QTC_ASSERT(state() == InferiorPreparing, qDebug() << state());
if (response.resultClass == GdbResultDone) {
//m_breakHandler->clearBreakMarkers();
setState(InferiorPrepared);
emit inferiorPrepared();
} else if (response.resultClass == GdbResultError) {
QString msg = tr("Starting executable failed:\n") +
__(response.data.findChild("msg").data());
setState(InferiorPreparationFailed);
emit inferiorPreparationFailed(msg);
}
}
void PlainGdbAdapter::handleInfoTarget(const GdbResultRecord &response, const QVariant &)
{
QTC_ASSERT(state() == AdapterNotRunning, qDebug() << state());
#if defined(Q_OS_MAC)
Q_UNUSED(response)
#else
/*
#ifdef Q_OS_MAC
m_engine->postCommand(_("sharedlibrary apply-load-rules all"));
// On MacOS, breaking in at the entry point wreaks havoc.
m_engine->postCommand(_("tbreak main"));
m_waitingForFirstBreakpointToBeHit = true;
m_engine->postCommand(_("-exec-run"), CB(handleExecRun));
#else
// FIXME:
// if (!m_dumperInjectionLoad)
// m_engine->postCommand(_("set auto-solib-add off"));
m_engine->postCommand(_("info target"), CB(handleInfoTarget));
#endif
*/
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) {
//debugMessage(_("STREAM: ") + msg + " " + needle.cap(1));
m_engine->postCommand(_("tbreak *") + needle.cap(1));
// FIXME: m_waitingForFirstBreakpointToBeHit = true;
m_engine->postCommand(_("-exec-run"), CB(handleExecRun));
} else {
debugMessage(_("PARSING START ADDRESS FAILED: ") + msg);
emit inferiorStartFailed(_("Parsing start address failed"));
}
} else if (response.resultClass == GdbResultError) {
debugMessage(_("FETCHING START ADDRESS FAILED: " + response.toString()));
emit inferiorStartFailed(_("Fetching start address failed"));
}
#endif
}
void PlainGdbAdapter::handleExecRun(const GdbResultRecord &response, const QVariant &)
{
QTC_ASSERT(state() == InferiorStarting, qDebug() << state());
if (response.resultClass == GdbResultRunning) {
setState(InferiorStarted);
emit inferiorStarted();
} else {
QTC_ASSERT(response.resultClass == GdbResultError, /**/);
const QByteArray &msg = response.data.findChild("msg").data();
//QTC_ASSERT(status() == DebuggerInferiorRunning, /**/);
//interruptInferior();
setState(InferiorStartFailed);
emit inferiorStartFailed(msg);
}
}
void PlainGdbAdapter::startInferior()
{
QTC_ASSERT(state() == InferiorPrepared, qDebug() << state());
setState(InferiorStarting);
m_engine->postCommand(_("-exec-run"), CB(handleExecRun));
}
void PlainGdbAdapter::interruptInferior()
{
debugMessage(_("TRYING TO INTERUPT INFERIOR"));
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()
{
if (state() == InferiorStarted) {
setState(InferiorShuttingDown);
m_engine->postCommand(_("kill"), CB(handleKill));
return;
}
if (state() == InferiorShutDown) {
setState(AdapterShuttingDown);
m_engine->postCommand(_("-gdb-exit"), CB(handleExit));
return;
}
/*
if (state() == InferiorShutdownFailed) {
m_gdbProc.terminate();
// 20s can easily happen when loading webkit debug information
m_gdbProc.waitForFinished(20000);
setState(AdapterShuttingDown);
debugMessage(_("FORCING TERMINATION: %1")
.arg(state()));
if (state() != QProcess::NotRunning) {
debugMessage(_("PROBLEM STOPPING DEBUGGER: STATE %1")
.arg(state()));
m_gdbProc.kill();
}
m_engine->postCommand(_("-gdb-exit"), CB(handleExit));
return;
}
*/
QTC_ASSERT(state() == AdapterNotRunning, qDebug() << state());
}
void PlainGdbAdapter::handleKill(const GdbResultRecord &response, const QVariant &)
{
if (response.resultClass == GdbResultDone) {
setState(InferiorShutDown);
emit inferiorShutDown();
shutdown(); // re-iterate...
} else if (response.resultClass == GdbResultError) {
QString msg = tr("Inferior process could not be stopped:\n") +
__(response.data.findChild("msg").data());
setState(InferiorShutdownFailed);
emit inferiorShutdownFailed(msg);
}
}
void PlainGdbAdapter::handleExit(const GdbResultRecord &response, const QVariant &)
{
if (response.resultClass == GdbResultDone) {
// don't set state here, this will be handled in handleGdbFinished()
} else if (response.resultClass == GdbResultError) {
QString msg = tr("Gdb process could not be stopped:\n") +
__(response.data.findChild("msg").data());
emit adapterShutdownFailed(msg);
}
}
void PlainGdbAdapter::handleGdbFinished(int, QProcess::ExitStatus)
{
debugMessage(_("GDB PROESS FINISHED"));
setState(AdapterNotRunning);
emit adapterShutDown();
}
void PlainGdbAdapter::stubStarted()
{
const qint64 attachedPID = m_stubProc.applicationPID();
emit inferiorPidChanged(attachedPID);
m_engine->postCommand(_("attach %1").arg(attachedPID), CB(handleStubAttached));
}
void PlainGdbAdapter::handleStubAttached(const GdbResultRecord &, const QVariant &)
{
qDebug() << "STUB ATTACHED, FIXME";
//qq->notifyInferiorStopped();
//handleAqcuiredInferior();
// FIXME: m_autoContinue = true;
}
void PlainGdbAdapter::stubError(const QString &msg)
{
QMessageBox::critical(m_engine->mainWindow(), tr("Debugger Error"), msg);
}
void PlainGdbAdapter::emitAdapterStartFailed(const QString &msg)
{
// QMessageBox::critical(mainWindow(), tr("Debugger Startup Failure"),
// tr("Cannot start debugger: %1").arg(m_gdbAdapter->errorString()));
m_stubProc.blockSignals(true);
m_stubProc.stop();
m_stubProc.blockSignals(false);
emit adapterStartFailed(msg);
}
} // namespace Internal
} // namespace Debugger