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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** 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.
**
****************************************************************************/
#include "termgdbadapter.h"
#include <debugger/debuggercore.h>
#include <debugger/debuggerprotocol.h>
#include <debugger/debuggerstartparameters.h>
#include <debugger/shared/hostutils.h>
#include <utils/hostosinfo.h>
#include <utils/qtcassert.h>
#include <coreplugin/icore.h>
#include <coreplugin/messagebox.h>
using namespace Utils;
namespace Debugger {
namespace Internal {
///////////////////////////////////////////////////////////////////////
//
// TermGdbAdapter
//
///////////////////////////////////////////////////////////////////////
GdbTermEngine::GdbTermEngine(const DebuggerRunParameters &startParameters)
: GdbEngine(startParameters)
{
if (HostOsInfo::isWindowsHost()) {
// 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(ConsoleProcess::Suspend);
else
m_stubProc.setMode(ConsoleProcess::Debug);
} else {
m_stubProc.setMode(ConsoleProcess::Debug);
m_stubProc.setSettings(Core::ICore::settings());
}
}
GdbTermEngine::~GdbTermEngine()
{
m_stubProc.disconnect(); // Avoid spurious state transitions from late exiting stub
}
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(runParameters().inferior.workingDirectory);
// Set environment + dumper preload.
m_stubProc.setEnvironment(runParameters().stubEnvironment);
connect(&m_stubProc, &ConsoleProcess::processError,
this, &GdbTermEngine::stubError);
connect(&m_stubProc, &ConsoleProcess::processStarted,
this, &GdbTermEngine::stubStarted);
connect(&m_stubProc, &ConsoleProcess::stubStopped,
this, &GdbTermEngine::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(runParameters().inferior.executable,
runParameters().inferior.commandLineArguments)) {
// 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();
const qint64 attachedMainThreadID = m_stubProc.applicationMainThreadID();
notifyInferiorPid(ProcessHandle(attachedPID));
const QString msg = (attachedMainThreadID != -1)
? QString("Going to attach to %1 (%2)").arg(attachedPID).arg(attachedMainThreadID)
: QString("Going to attach to %1").arg(attachedPID);
showMessage(msg, LogMisc);
handleInferiorPrepared();
}
void GdbTermEngine::runEngine()
{
QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
const qint64 attachedPID = m_stubProc.applicationPID();
runCommand({"attach " + QString::number(attachedPID),
[this](const DebuggerResponse &r) { handleStubAttached(r); }});
}
void GdbTermEngine::handleStubAttached(const DebuggerResponse &response)
{
// InferiorStopOk can happen if the "*stopped" in response to the
// 'attach' comes in before its '^done'
QTC_ASSERT(state() == EngineRunRequested || state() == InferiorStopOk,
qDebug() << state());
switch (response.resultClass) {
case ResultDone:
case ResultRunning:
if (runParameters().toolChainAbi.os() == ProjectExplorer::Abi::WindowsOS) {
QString errorMessage;
// Resume thread that was suspended by console stub process (see stub code).
const qint64 mainThreadId = m_stubProc.applicationMainThreadID();
if (winResumeThread(mainThreadId, &errorMessage)) {
showMessage(QString("Inferior attached, thread %1 resumed").
arg(mainThreadId), LogMisc);
} else {
showMessage(QString("Inferior attached, unable to resume thread %1: %2").
arg(mainThreadId).arg(errorMessage),
LogWarning);
}
notifyEngineRunAndInferiorStopOk();
continueInferiorInternal();
} else {
showMessage("INFERIOR ATTACHED AND RUNNING");
//notifyEngineRunAndInferiorRunOk();
// Wait for the upcoming *stopped and handle it there.
}
break;
case ResultError:
if (response.data["msg"].data() == "ptrace: Operation not permitted.") {
showMessage(msgPtraceError(runParameters().startMode));
notifyEngineRunFailed();
break;
}
showMessage(response.data["msg"].data());
notifyEngineIll();
break;
default:
showMessage(QString("Invalid response %1").arg(response.resultClass));
notifyEngineIll();
break;
}
}
void GdbTermEngine::interruptInferior2()
{
interruptLocalInferior(inferiorPid());
}
void GdbTermEngine::stubError(const QString &msg)
{
Core::AsynchronousMessageBox::critical(tr("Debugger Error"), msg);
notifyEngineIll();
}
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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