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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 "attachgdbadapter.h"
#include <coreplugin/messagebox.h>
#include <debugger/debuggerprotocol.h>
#include <debugger/debuggerstartparameters.h>
#include <utils/qtcassert.h>
#include <utils/qtcfallthrough.h>
namespace Debugger {
namespace Internal {
GdbAttachEngine::GdbAttachEngine(bool useTerminal)
: GdbEngine(useTerminal)
{
}
void GdbAttachEngine::setupEngine()
{
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
showMessage("TRYING TO START ADAPTER");
startGdb();
}
void GdbAttachEngine::setupInferior()
{
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
// Task 254674 does not want to remove them
//qq->breakHandler()->removeAllBreakpoints();
handleInferiorPrepared();
}
void GdbAttachEngine::runEngine()
{
QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
const qint64 pid = runParameters().attachPID.pid();
showStatusMessage(tr("Attaching to process %1.").arg(pid));
runCommand({"attach " + QString::number(pid),
[this](const DebuggerResponse &r) { handleAttach(r); }});
// In some cases we get only output like
// "Could not attach to process. If your uid matches the uid of the target\n"
// "process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try\n"
// " again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf\n"
// " ptrace: Operation not permitted.\n"
// but no(!) ^ response. Use a second command to force *some* output
runCommand({"print 24"});
}
void GdbAttachEngine::handleAttach(const DebuggerResponse &response)
{
QTC_ASSERT(state() == EngineRunRequested || state() == InferiorStopOk,
qDebug() << state());
switch (response.resultClass) {
case ResultDone:
case ResultRunning:
showMessage("INFERIOR ATTACHED");
if (state() == EngineRunRequested) {
// Happens e.g. for "Attach to unstarted application"
// We will get a '*stopped' later that we'll interpret as 'spontaneous'
// So acknowledge the current state and put a delayed 'continue' in the pipe.
showMessage(tr("Attached to running application"), StatusBar);
notifyEngineRunAndInferiorRunOk();
} else {
// InferiorStopOk, e.g. for "Attach to running application".
// The *stopped came in between sending the 'attach' and
// receiving its '^done'.
if (runParameters().continueAfterAttach)
continueInferiorInternal();
}
break;
case ResultError:
if (response.data["msg"].data() == "ptrace: Operation not permitted.") {
QString msg = msgPtraceError(runParameters().startMode);
showStatusMessage(tr("Failed to attach to application: %1").arg(msg));
Core::AsynchronousMessageBox::warning(tr("Debugger Error"), msg);
notifyEngineIll();
break;
}
Q_FALLTHROUGH(); // if msg != "ptrace: ..."
default:
showStatusMessage(tr("Failed to attach to application: %1")
.arg(QString(response.data["msg"].data())));
notifyEngineIll();
}
}
void GdbAttachEngine::interruptInferior2()
{
interruptLocalInferior(runParameters().attachPID.pid());
}
void GdbAttachEngine::shutdownEngine()
{
notifyAdapterShutdownOk();
}
} // namespace Internal
} // namespace Debugger
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