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

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#include "attachgdbadapter.h"

#include <coreplugin/messagebox.h>

#include <debugger/debuggerprotocol.h>
#include <debugger/debuggerstringutils.h>
#include <debugger/debuggerstartparameters.h>

#include <utils/qtcassert.h>

namespace Debugger {
namespace Internal {

///////////////////////////////////////////////////////////////////////
//
// AttachGdbAdapter
//
///////////////////////////////////////////////////////////////////////

GdbAttachEngine::GdbAttachEngine(const DebuggerStartParameters &startParameters)
    : GdbEngine(startParameters)
{
}

void GdbAttachEngine::setupEngine()
{
    QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
    showMessage(_("TRYING TO START ADAPTER"));

    if (!startParameters().workingDirectory.isEmpty())
        m_gdbProc->setWorkingDirectory(startParameters().workingDirectory);
    if (startParameters().environment.size())
        m_gdbProc->setEnvironment(startParameters().environment.toStringList());

    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 = startParameters().attachPID;
    postCommand("attach " + QByteArray::number(pid), NoFlags,
                [this](const DebuggerResponse &r) { handleAttach(r); });
    showStatusMessage(tr("Attached to process %1.").arg(inferiorPid()));
}

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 (startParameters().continueAfterAttach)
                continueInferiorInternal();
        }
        break;
    case ResultError:
        if (response.data["msg"].data() == "ptrace: Operation not permitted.") {
            QString msg = msgPtraceError(startParameters().startMode);
            showStatusMessage(tr("Failed to attach to application: %1").arg(msg));
            Core::AsynchronousMessageBox::warning(tr("Debugger Error"), msg);
            notifyEngineIll();
            break;
        }
        // if msg != "ptrace: ..." fall through
    default:
        showStatusMessage(tr("Failed to attach to application: %1")
                          .arg(QString::fromLocal8Bit(response.data["msg"].data())));
        notifyEngineIll();
    }
}

void GdbAttachEngine::interruptInferior2()
{
    interruptLocalInferior(startParameters().attachPID);
}

void GdbAttachEngine::shutdownEngine()
{
    notifyAdapterShutdownOk();
}

} // namespace Internal
} // namespace Debugger