gdbengine.cpp 142 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
5
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
9
** Commercial Usage
10
**
11 12 13 14
** 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.
15
**
16
** GNU Lesser General Public License Usage
17
**
18 19 20 21 22 23
** 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.
24
**
25
** If you are unsure which license is appropriate for your use, please
hjk's avatar
hjk committed
26
** contact the sales department at http://qt.nokia.com/contact.
con's avatar
con committed
27
**
28
**************************************************************************/
con's avatar
con committed
29

30 31
#define QT_NO_CAST_FROM_ASCII

con's avatar
con committed
32
#include "gdbengine.h"
33
#include "gdboptionspage.h"
34 35
#include "trkoptions.h"
#include "trkoptionspage.h"
36

37 38
#include "attachgdbadapter.h"
#include "coregdbadapter.h"
hjk's avatar
hjk committed
39
#include "plaingdbadapter.h"
40
#include "termgdbadapter.h"
41
#include "remotegdbadapter.h"
42
#include "trkgdbadapter.h"
con's avatar
con committed
43

44
#include "watchutils.h"
45
#include "debuggeractions.h"
46
#include "debuggeragents.h"
con's avatar
con committed
47 48
#include "debuggerconstants.h"
#include "debuggermanager.h"
49
#include "debuggertooltip.h"
50
#include "debuggerstringutils.h"
con's avatar
con committed
51 52 53 54 55 56 57
#include "gdbmi.h"

#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
#include "stackhandler.h"
#include "watchhandler.h"
58
#include "sourcefileswindow.h"
con's avatar
con committed
59

60
#include "debuggerdialogs.h"
con's avatar
con committed
61

hjk's avatar
hjk committed
62
#include <utils/qtcassert.h>
63
#include <utils/fancymainwindow.h>
64
#include <texteditor/itexteditor.h>
65
#include <projectexplorer/toolchain.h>
66
#include <coreplugin/icore.h>
hjk's avatar
hjk committed
67

con's avatar
con committed
68 69 70
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
71
#include <QtCore/QMetaObject>
con's avatar
con committed
72 73
#include <QtCore/QTime>
#include <QtCore/QTimer>
74
#include <QtCore/QTextStream>
con's avatar
con committed
75 76

#include <QtGui/QAction>
77
#include <QtCore/QCoreApplication>
con's avatar
con committed
78 79 80
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
81 82
#include <QtGui/QDialogButtonBox>
#include <QtGui/QPushButton>
83
#ifdef Q_OS_WIN
84
#    include "shared/sharedlibraryinjector.h"
85
#endif
con's avatar
con committed
86

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
87
#ifdef Q_OS_UNIX
con's avatar
con committed
88 89 90
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
91
#include <ctype.h>
con's avatar
con committed
92

93 94 95 96 97 98 99 100
#define DIVERT(func, pars) \
    do { \
        if (hasPython()) \
            func ## Python(pars); \
        else \
            func ## Plain(pars); \
    } while (0)

101 102
namespace Debugger {
namespace Internal {
con's avatar
con committed
103 104 105 106 107 108

//#define DEBUG_PENDING  1

#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
Roberto Raggi's avatar
Roberto Raggi committed
109
#   define PENDING_DEBUG(s)
con's avatar
con committed
110
#endif
111
#define PENDING_DEBUGX(s) qDebug() << s
con's avatar
con committed
112

113 114
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

115
QByteArray GdbEngine::tooltipINameForExpression(const QByteArray &exp)
116 117 118 119 120 121 122
{
    // FIXME: 'exp' can contain illegal characters
    //return "tooltip." + exp;
    Q_UNUSED(exp)
    return "tooltip.x";
}

hjk's avatar
hjk committed
123
static bool stateAcceptsGdbCommands(DebuggerState state)
hjk's avatar
hjk committed
124
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
125 126 127 128 129 130 131 132
    switch (state) {
    case AdapterStarting:
    case AdapterStarted:
    case AdapterStartFailed:
    case InferiorUnrunnable:
    case InferiorStarting:
    case InferiorStartFailed:
    case InferiorRunningRequested:
133
    case InferiorRunningRequested_Kill:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
134 135
    case InferiorRunning:
    case InferiorStopping:
136
    case InferiorStopping_Kill:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
137 138 139 140 141 142 143 144 145 146 147 148 149
    case InferiorStopped:
    case InferiorShuttingDown:
    case InferiorShutDown:
    case InferiorShutdownFailed:
        return true;
    case DebuggerNotReady:
    case EngineStarting:
    case InferiorStopFailed:
    case EngineShuttingDown:
        break;
    }
    return false;
}
hjk's avatar
hjk committed
150

con's avatar
con committed
151 152 153 154 155 156
static int &currentToken()
{
    static int token = 0;
    return token;
}

157 158 159 160 161 162
static bool isAccessSpecifier(const QByteArray &ba)
{
    return ba == "private" || ba == "protected" || ba == "public";
}


hjk's avatar
hjk committed
163
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
164
{
hjk's avatar
hjk committed
165
    GdbMi output = response.data.findChild("consolestreamoutput");
166 167 168 169 170 171 172 173 174 175
    QByteArray out = output.data();
    // FIXME: proper decoding needed
    if (out.endsWith("\\n"))
        out.chop(2);
    while (out.endsWith('\n') || out.endsWith(' '))
        out.chop(1);
    int pos = out.indexOf(" = ");
    return out.mid(pos + 3);
}

con's avatar
con committed
176 177 178 179 180 181
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

hjk's avatar
hjk committed
182 183
GdbEngine::GdbEngine(DebuggerManager *manager) :
    IDebuggerEngine(manager),
184
#ifdef Q_OS_WIN // Do injection loading with MinGW (call loading does not work with 64bit)
hjk's avatar
hjk committed
185
    m_dumperInjectionLoad(true)
186
#else
hjk's avatar
hjk committed
187
    m_dumperInjectionLoad(false)
188
#endif
con's avatar
con committed
189
{
190 191
    m_trkOptions = QSharedPointer<TrkOptions>(new TrkOptions);
    m_trkOptions->fromSettings(Core::ICore::instance()->settings());
hjk's avatar
hjk committed
192
    m_gdbAdapter = 0;
193

194 195 196 197
    m_commandTimer = new QTimer(this);
    m_commandTimer->setSingleShot(true);
    connect(m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));

198 199 200
    // Needs no resetting in initializeVariables()
    m_busy = false;

201 202
    connect(theDebuggerAction(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setAutoDerefPointers(QVariant)));
203
}
204

205
void GdbEngine::connectDebuggingHelperActions()
206
{
207 208 209 210 211 212
    connect(theDebuggerAction(UseDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setUseDebuggingHelpers(QVariant)));
    connect(theDebuggerAction(DebugDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setDebugDebuggingHelpers(QVariant)));
    connect(theDebuggerAction(RecheckDebuggingHelpers), SIGNAL(triggered()),
            this, SLOT(recheckDebuggingHelperAvailability()));
213 214
}
   
215 216 217 218 219 220 221
void GdbEngine::disconnectDebuggingHelperActions()
{
    disconnect(theDebuggerAction(UseDebuggingHelpers), 0, this, 0);
    disconnect(theDebuggerAction(DebugDebuggingHelpers), 0, this, 0);
    disconnect(theDebuggerAction(RecheckDebuggingHelpers), 0, this, 0);
}

222 223 224 225
DebuggerStartMode GdbEngine::startMode() const
{
    QTC_ASSERT(!m_startParameters.isNull(), return NoStartMode);
    return m_startParameters->startMode;
con's avatar
con committed
226 227
}

228 229 230 231 232
QMainWindow *GdbEngine::mainWindow() const
{
    return m_manager->mainWindow();
}

con's avatar
con committed
233 234
GdbEngine::~GdbEngine()
{
hjk's avatar
hjk committed
235
    // prevent sending error messages afterwards
236
    disconnect(&m_gdbProc, 0, this, 0);
237
    delete m_gdbAdapter;
238
    m_gdbAdapter = 0;
hjk's avatar
hjk committed
239 240
}

241
void GdbEngine::connectAdapter()
con's avatar
con committed
242
{
hjk's avatar
hjk committed
243 244
    connect(m_gdbAdapter, SIGNAL(adapterStarted()),
        this, SLOT(handleAdapterStarted()));
245 246
    connect(m_gdbAdapter, SIGNAL(adapterStartFailed(QString,QString)),
        this, SLOT(handleAdapterStartFailed(QString,QString)));
hjk's avatar
hjk committed
247

248 249
    connect(m_gdbAdapter, SIGNAL(inferiorPrepared()),
        this, SLOT(handleInferiorPrepared()));
hjk's avatar
hjk committed
250 251 252 253

    connect(m_gdbAdapter, SIGNAL(inferiorStartFailed(QString)),
        this, SLOT(handleInferiorStartFailed(QString)));

254 255
    connect(m_gdbAdapter, SIGNAL(adapterCrashed(QString)),
        this, SLOT(handleAdapterCrashed(QString)));
256
}
257

258 259
void GdbEngine::initializeVariables()
{
260
    m_debuggingHelperState = DebuggingHelperUninitialized;
261
    m_gdbVersion = 100;
hjk's avatar
hjk committed
262
    m_gdbBuildVersion = -1;
263
    m_isMacGdb = false;
264
    m_hasPython = false;
265
    m_registerNamesListed = false;
266 267 268 269 270

    m_fullToShortName.clear();
    m_shortToFullName.clear();
    m_varToType.clear();

271
    invalidateSourcesList();
272
    m_sourcesListUpdating = false;
273
    m_breakListUpdating = false;
274 275 276
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
    m_pendingRequests = 0;
277
    m_commandsDoneCallback = 0;
hjk's avatar
hjk committed
278
    m_commandsToRunOnTemporaryBreak.clear();
279
    m_cookieForToken.clear();
280 281 282 283 284 285

    m_pendingConsoleStreamOutput.clear();
    m_pendingLogStreamOutput.clear();

    m_inbuffer.clear();

286 287
    m_commandTimer->stop();

288 289 290 291
    // ConverterState has no reset() function.
    m_outputCodecState.~ConverterState();
    new (&m_outputCodecState) QTextCodec::ConverterState();

292 293
    m_currentFunctionArgs.clear();
    m_currentFrame.clear();
294
    m_dumperHelper.clear();
295 296 297
#ifdef Q_OS_LINUX
    m_entryPoint.clear();
#endif
298 299
}

300
QString GdbEngine::errorMessage(QProcess::ProcessError error)
con's avatar
con committed
301 302 303
{
    switch (error) {
        case QProcess::FailedToStart:
304
            return tr("The Gdb process failed to start. Either the "
con's avatar
con committed
305
                "invoked program '%1' is missing, or you may have insufficient "
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
306
                "permissions to invoke the program.")
hjk's avatar
hjk committed
307
                .arg(theDebuggerStringSetting(GdbLocation));
con's avatar
con committed
308
        case QProcess::Crashed:
309
            return tr("The Gdb process crashed some time after starting "
con's avatar
con committed
310 311
                "successfully.");
        case QProcess::Timedout:
312
            return tr("The last waitFor...() function timed out. "
con's avatar
con committed
313 314 315
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
        case QProcess::WriteError:
316
            return tr("An error occurred when attempting to write "
con's avatar
con committed
317 318 319
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
        case QProcess::ReadError:
320
            return tr("An error occurred when attempting to read from "
con's avatar
con committed
321 322
                "the Gdb process. For example, the process may not be running.");
        default:
323
            return tr("An unknown error in the Gdb process occurred. ");
con's avatar
con committed
324 325 326 327 328 329 330
    }
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
331
    Q_UNUSED(to)
con's avatar
con committed
332 333 334 335 336 337 338 339 340 341 342
    // note that qDebug cuts off output after a certain size... (bug?)
    qDebug("\n>>>>> %s\n%s\n====\n%s\n<<<<<\n",
        qPrintable(currentTime()),
        qPrintable(QString(ba).trimmed()),
        qPrintable(to.trimmed()));
    //qDebug() << "";
    //qDebug() << qPrintable(currentTime())
    //    << " Reading response:  " << QString(ba).trimmed() << "\n";
}
#endif

343 344
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
345
    m_manager->showApplicationOutput(m_outputCodec->toUnicode(
346 347 348
            data.constData(), data.length(), &m_outputCodecState));
}

hjk's avatar
hjk committed
349 350
void GdbEngine::debugMessage(const QString &msg)
{
351
    gdbOutputAvailable(LogDebug, msg);
hjk's avatar
hjk committed
352 353
}

354
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
355 356 357
{
    static QTime lastTime;

358
    if (theDebuggerBoolSetting(LogTimeStamps))
359 360
        gdbOutputAvailable(LogTime, currentTime());
    gdbOutputAvailable(LogOutput, QString::fromLocal8Bit(buff, buff.length()));
con's avatar
con committed
361 362 363 364 365

#if 0
    qDebug() // << "#### start response handling #### "
        << currentTime()
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
366 367
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
368
        << "size:" << buff.size();
con's avatar
con committed
369
#else
370
    //qDebug() << "buf:" << buff;
con's avatar
con committed
371 372 373 374
#endif

    lastTime = QTime::currentTime();

375 376
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
377

378 379 380
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
381

382 383 384 385
    int token = -1;
    // token is a sequence of numbers
    for (inner = from; inner != to; ++inner)
        if (*inner < '0' || *inner > '9')
con's avatar
con committed
386
            break;
387 388 389
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
390
        //qDebug() << "found token" << token;
391
    }
con's avatar
con committed
392

hjk's avatar
hjk committed
393
    // next char decides kind of response
394 395 396 397 398 399 400 401 402 403 404 405 406 407
    const char c = *from++;
    //qDebug() << "CODE:" << c;
    switch (c) {
        case '*':
        case '+':
        case '=': {
            QByteArray asyncClass;
            for (; from != to; ++from) {
                const char c = *from;
                if (!isNameChar(c))
                    break;
                asyncClass += *from;
            }
            //qDebug() << "ASYNCCLASS" << asyncClass;
con's avatar
con committed
408

hjk's avatar
hjk committed
409
            GdbMi result;
410 411
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
412
                if (*from != ',') {
hjk's avatar
hjk committed
413 414
                    // happens on archer where we get 
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb) 
hjk's avatar
hjk committed
415
                    result.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
416 417 418 419 420
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
hjk's avatar
hjk committed
421 422 423
                    //qDebug() << "parsed result:" << data.toString();
                    result.m_children += data;
                    result.m_type = GdbMi::Tuple;
con's avatar
con committed
424 425
                }
            }
426
            if (asyncClass == "stopped") {
427
                handleStopResponse(result);
428 429
                m_pendingLogStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();
430 431
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
432 433 434 435
            } else if (asyncClass == "library-loaded") {
                // Archer has 'id="/usr/lib/libdrm.so.2",
                // target-name="/usr/lib/libdrm.so.2",
                // host-name="/usr/lib/libdrm.so.2",
436
                // symbols-loaded="0"
hjk's avatar
hjk committed
437
                QByteArray id = result.findChild("id").data();
438
                if (!id.isEmpty())
hjk's avatar
hjk committed
439
                    showStatusMessage(tr("Library %1 loaded.").arg(_(id)));
440
                invalidateSourcesList();
hjk's avatar
hjk committed
441 442 443 444
            } else if (asyncClass == "library-unloaded") {
                // Archer has 'id="/usr/lib/libdrm.so.2",
                // target-name="/usr/lib/libdrm.so.2",
                // host-name="/usr/lib/libdrm.so.2"
hjk's avatar
hjk committed
445
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
446
                showStatusMessage(tr("Library %1 unloaded.").arg(_(id)));
447
                invalidateSourcesList();
448 449
            } else if (asyncClass == "thread-group-created") {
                // Archer has "{id="28902"}" 
hjk's avatar
hjk committed
450
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
451
                showStatusMessage(tr("Thread group %1 created.").arg(_(id)));
452 453 454
                int pid = id.toInt();
                if (pid != inferiorPid())
                    handleInferiorPidChanged(pid);
455 456
            } else if (asyncClass == "thread-created") {
                //"{id="1",group-id="28902"}" 
hjk's avatar
hjk committed
457
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
458
                showStatusMessage(tr("Thread %1 created.").arg(_(id)));
459 460
            } else if (asyncClass == "thread-group-exited") {
                // Archer has "{id="28902"}" 
hjk's avatar
hjk committed
461
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
462
                showStatusMessage(tr("Thread group %1 exited.").arg(_(id)));
463 464
            } else if (asyncClass == "thread-exited") {
                //"{id="1",group-id="28902"}" 
hjk's avatar
hjk committed
465 466
                QByteArray id = result.findChild("id").data();
                QByteArray groupid = result.findChild("group-id").data();
hjk's avatar
hjk committed
467
                showStatusMessage(tr("Thread %1 in group %2 exited.")
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
468
                    .arg(_(id)).arg(_(groupid)));
hjk's avatar
hjk committed
469
            } else if (asyncClass == "thread-selected") {
hjk's avatar
hjk committed
470
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
471
                showStatusMessage(tr("Thread %1 selected.").arg(_(id)));
hjk's avatar
hjk committed
472
                //"{id="2"}" 
473
            #if defined(Q_OS_MAC)
474 475
            } else if (asyncClass == "shlibs-updated") {
                // MAC announces updated libs
476
                invalidateSourcesList();
477 478 479 480 481 482 483
            } else if (asyncClass == "shlibs-added") {
                // MAC announces added libs
                // {shlib-info={num="2", name="libmathCommon.A_debug.dylib",
                // kind="-", dyld-addr="0x7f000", reason="dyld", requested-state="Y",
                // state="Y", path="/usr/lib/system/libmathCommon.A_debug.dylib",
                // description="/usr/lib/system/libmathCommon.A_debug.dylib",
                // loaded_addr="0x7f000", slide="0x7f000", prefix=""}}
484
                invalidateSourcesList();
485 486
            #endif
            } else {
487
                qDebug() << "IGNORED ASYNC OUTPUT"
hjk's avatar
hjk committed
488
                    << asyncClass << result.toString();
489
            }
490 491
            break;
        }
492

493
        case '~': {
494 495
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
496 497 498 499 500 501 502

            // Parse pid from noise.
            if (!inferiorPid()) {
                // Linux/Mac gdb: [New [Tt]hread 0x545 (LWP 4554)]
                static QRegExp re1(_("New .hread 0x[0-9a-f]+ \\(LWP ([0-9]*)\\)"));
                // MinGW 6.8: [New thread 2437.0x435345]
                static QRegExp re2(_("New .hread ([0-9]+)\\.0x[0-9a-f]*"));
hjk's avatar
hjk committed
503 504 505
                // Mac: [Switching to process 9294 local thread 0x2e03] or
                // [Switching to process 31773]
                static QRegExp re3(_("Switching to process ([0-9]+)"));
506 507 508 509 510
                QTC_ASSERT(re1.isValid() && re2.isValid(), return);
                if (re1.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re1.cap(1));
                else if (re2.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re2.cap(1));
511 512
                else if (re3.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re3.cap(1));
513
            }
514 515

            // Show some messages to give the impression something happens.
516
            if (data.startsWith("Reading symbols from ")) {
517
                showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
518
                invalidateSourcesList();
519 520 521
            } else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
                if (data.endsWith('\n'))
                    data.chop(1);
522
                showStatusMessage(_(data), 1000);
523
            }
524 525
            break;
        }
526

527
        case '@': {
528
            readDebugeeOutput(GdbMi::parseCString(from, to));
529
            break;
con's avatar
con committed
530 531
        }

532 533 534 535 536 537
        case '&': {
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingLogStreamOutput += data;
            // On Windows, the contents seem to depend on the debugger
            // version and/or OS version used.
            if (data.startsWith("warning:"))
hjk's avatar
hjk committed
538
                manager()->showApplicationOutput(_(data.mid(9))); // cut "warning: "
con's avatar
con committed
539 540 541
            break;
        }

542
        case '^': {
hjk's avatar
hjk committed
543
            GdbResponse response;
con's avatar
con committed
544

hjk's avatar
hjk committed
545
            response.token = token;
con's avatar
con committed
546

547 548 549
            for (inner = from; inner != to; ++inner)
                if (*inner < 'a' || *inner > 'z')
                    break;
con's avatar
con committed
550

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
551
            QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
552
            if (resultClass == "done") {
hjk's avatar
hjk committed
553
                response.resultClass = GdbResultDone;
554
            } else if (resultClass == "running") {
555 556 557 558 559
                if (state() == InferiorStopped) { // Result of manual command.
                    m_manager->resetLocation();
                    setTokenBarrier();
                    setState(InferiorRunningRequested);
                }
560 561
                setState(InferiorRunning);
                showStatusMessage(tr("Running..."));
hjk's avatar
hjk committed
562
                response.resultClass = GdbResultRunning;
563
            } else if (resultClass == "connected") {
hjk's avatar
hjk committed
564
                response.resultClass = GdbResultConnected;
565
            } else if (resultClass == "error") {
hjk's avatar
hjk committed
566
                response.resultClass = GdbResultError;
567
            } else if (resultClass == "exit") {
hjk's avatar
hjk committed
568
                response.resultClass = GdbResultExit;
569
            } else {
hjk's avatar
hjk committed
570
                response.resultClass = GdbResultUnknown;
571
            }
con's avatar
con committed
572

573 574
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
575 576
                if (*from == ',') {
                    ++from;
hjk's avatar
hjk committed
577 578 579
                    response.data.parseTuple_helper(from, to);
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
hjk's avatar
hjk committed
580 581
                } else {
                    // Archer has this
hjk's avatar
hjk committed
582 583
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
con's avatar
con committed
584 585
                }
            }
586 587 588

            //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
            //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
hjk's avatar
hjk committed
589
            response.data.setStreamOutput("logstreamoutput",
590
                m_pendingLogStreamOutput);
hjk's avatar
hjk committed
591
            response.data.setStreamOutput("consolestreamoutput",
592 593 594 595
                m_pendingConsoleStreamOutput);
            m_pendingLogStreamOutput.clear();
            m_pendingConsoleStreamOutput.clear();

596
            handleResultRecord(&response);
597 598 599 600 601
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
602 603 604 605 606 607
        }
    }
}

void GdbEngine::readGdbStandardError()
{
608 609 610 611
    QByteArray err = m_gdbProc.readAllStandardError();
    if (err == "Undefined command: \"bb\".  Try \"help\".\n")
        return;
    qWarning() << "Unexpected gdb stderr:" << err;
con's avatar
con committed
612 613 614 615
}

void GdbEngine::readGdbStandardOutput()
{
616
    if (m_commandTimer->isActive()) 
617 618
        m_commandTimer->start(); // Retrigger

619 620
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
621

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
622
    m_inbuffer.append(m_gdbProc.readAllStandardOutput());
con's avatar
con committed
623

624 625 626 627
    // This can trigger when a dialog starts a nested event loop
    if (m_busy)
        return;

628 629
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
630
        int end = m_inbuffer.indexOf('\n', scan);
631 632 633 634 635
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
636
        scan = newstart;
637 638
        if (end == start)
            continue;
639
        #if defined(Q_OS_WIN)
640 641 642 643 644
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
645
        #endif
646
        m_busy = true;
647
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
648
        m_busy = false;
con's avatar
con committed
649
    }
650
    m_inbuffer.clear();
con's avatar
con committed
651 652 653 654
}

void GdbEngine::interruptInferior()
{
655
    QTC_ASSERT(state() == InferiorRunning, qDebug() << state(); return);
con's avatar
con committed
656

hjk's avatar
hjk committed
657 658 659
    setState(InferiorStopping);
    showStatusMessage(tr("Stop requested..."), 5000);

660
    debugMessage(_("TRYING TO INTERRUPT INFERIOR"));
hjk's avatar
hjk committed
661
    m_gdbAdapter->interruptInferior();
con's avatar
con committed
662 663
}

664 665 666 667 668 669 670 671 672 673
void GdbEngine::interruptInferiorTemporarily()
{
    interruptInferior();
    foreach (const GdbCommand &cmd, m_commandsToRunOnTemporaryBreak)
        if (cmd.flags & LosesChild) {
            setState(InferiorStopping_Kill);
            break;
        }
}

con's avatar
con committed
674 675
void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
676
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
677
    if (pid == 0) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
678
        debugMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
679 680
        return;
    }
hjk's avatar
hjk committed
681
    if (pid == inferiorPid())
con's avatar
con committed
682
        return;
683 684
    debugMessage(_("FOUND PID %1").arg(pid));    

685
    handleInferiorPidChanged(pid);
686 687
    if (m_dumperInjectionLoad && !hasPython())
        tryLoadDebuggingHelpersClassic();
con's avatar
con committed
688 689
}

690
void GdbEngine::postCommand(const QByteArray &command, AdapterCallback callback,
hjk's avatar
hjk committed
691
                            const char *callbackName, const QVariant &cookie)
692 693 694 695
{
    postCommand(command, NoFlags, callback, callbackName, cookie);
}

696
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
697 698
                            AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
hjk's avatar
hjk committed
699 700 701
{
    GdbCommand cmd;
    cmd.command = command;
702
    cmd.flags = flags;
hjk's avatar
hjk committed
703 704 705 706 707 708
    cmd.adapterCallback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

709
void GdbEngine::postCommand(const QByteArray &command, GdbCommandCallback callback,
710 711
                            const char *callbackName, const QVariant &cookie)
{
712
    postCommand(command, NoFlags, callback, callbackName, cookie);
713 714
}

715
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
716 717
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
hjk's avatar
hjk committed
718 719 720 721 722 723 724 725 726 727 728
{
    GdbCommand cmd;
    cmd.command = command;
    cmd.flags = flags;
    cmd.callback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

void GdbEngine::postCommandHelper(const GdbCommand &cmd)
con's avatar
con committed
729
{
hjk's avatar
hjk committed
730
    if (!stateAcceptsGdbCommands(state())) {
731
        PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: " + cmd.command));
732
        debugMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
733
            .arg(_(cmd.command)).arg(state()));
con's avatar
con committed
734 735 736
        return;
    }

hjk's avatar
hjk committed
737
    if (cmd.flags & RebuildModel) {
con's avatar
con committed
738
        ++m_pendingRequests;
739 740
        PENDING_DEBUG("   MODEL:" << cmd.command << "=>" << cmd.callbackName
                      << "INCREMENTS PENDING TO" << m_pendingRequests);
con's avatar
con committed
741
    } else {
742 743
        PENDING_DEBUG("   OTHER (IN):" << cmd.command << "=>" << cmd.callbackName
                      << "LEAVES PENDING AT" << m_pendingRequests);
con's avatar
con committed
744 745
    }

746
    if ((cmd.flags & NeedsStop) || !m_commandsToRunOnTemporaryBreak.isEmpty()) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
747
        if (state() == InferiorStopped || state() == InferiorUnrunnable
748
            || state() == InferiorStarting || state() == AdapterStarted) {
hjk's avatar
hjk committed
749 750 751 752
            // Can be safely sent now.
            flushCommand(cmd);
        } else {
            // Queue the commands that we cannot send at once.
753
            debugMessage(_("QUEUING COMMAND " + cmd.command));
hjk's avatar
hjk committed
754
            m_commandsToRunOnTemporaryBreak.append(cmd);
755
            if (state() == InferiorStopping) {
756 757
                if (cmd.flags & LosesChild)
                    setState(InferiorStopping_Kill);
758
                debugMessage(_("CHILD ALREADY BEING INTERRUPTED"));
759 760
                // FIXME
                shutdown();
761 762
            } else if (state() == InferiorStopping_Kill) {
                debugMessage(_("CHILD ALREADY BEING INTERRUPTED (KILL PENDING)"));
763 764
                // FIXME
                shutdown();
765
            } else if (state() == InferiorRunningRequested) {
766 767
                if (cmd.flags & LosesChild)
                    setState(InferiorRunningRequested_Kill);
768
                debugMessage(_("RUNNING REQUESTED; POSTPONING INTERRUPT"));
769 770
            } else if (state() == InferiorRunningRequested_Kill) {
                debugMessage(_("RUNNING REQUESTED; POSTPONING INTERRUPT (KILL PENDING)"));
771
            } else if (state() == InferiorRunning) {
772
                showStatusMessage(tr("Stopping temporarily."), 1000);
773
                interruptInferiorTemporarily();
774 775
            } else {
                qDebug() << "ATTEMPTING TO QUEUE COMMAND IN INAPPROPRIATE STATE" << state();
776
            }
hjk's avatar
hjk committed
777
        }
hjk's avatar
hjk committed
778
    } else if (!cmd.command.isEmpty()) {
779
        flushCommand(cmd);
con's avatar
con committed
780 781 782
    }
}

783 784 785 786 787
void GdbEngine::flushQueuedCommands()
{
    showStatusMessage(tr("Processing queued commands."), 1000);
    while (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
        GdbCommand cmd = m_commandsToRunOnTemporaryBreak.takeFirst();
788 789
        debugMessage(_("RUNNING QUEUED COMMAND " + cmd.command + ' '
            + cmd.callbackName));
790 791 792 793
        flushCommand(cmd);
    }
}

hjk's avatar
hjk committed
794
void GdbEngine::flushCommand(const GdbCommand &cmd0)
795
{
hjk's avatar
hjk committed
796
    GdbCommand cmd = cmd0;
hjk's avatar
hjk committed
797
    if (state() == DebuggerNotReady) {
798 799
        gdbInputAvailable(LogInput, _(cmd.command));
        debugMessage(_("GDB PROCESS NOT RUNNING, PLAIN CMD IGNORED: " + cmd.command));
800 801 802
        return;
    }

803
    ++currentToken();
804
    cmd.postTime = QTime::currentTime();
805
    m_cookieForToken[currentToken()] = cmd;
806 807
    cmd.command = QByteArray::number(currentToken()) + cmd.command;
    gdbInputAvailable(LogInput, _(cmd.command));
808

809
    m_gdbAdapter->write(cmd.command + "\r\n");
810

811 812
    m_commandTimer->start();

813 814
    if (cmd.flags & LosesChild)
        setState(InferiorShuttingDown);
815 816
}

817 818 819 820 821 822
int GdbEngine::commandTimeoutTime() const
{
    int time = theDebuggerAction(GdbWatchdogTimeout)->value().toInt();
    return 1000 * qMax(20, time);
}

823 824 825 826
void GdbEngine::commandTimeout()
{
    QList<int> keys = m_cookieForToken.keys();
    qSort(keys);
827
    bool killIt = false;
828
    foreach (int key, keys) {
829 830 831
        const GdbCommand &cmd = m_cookieForToken.value(key);
        if (!(cmd.flags & NonCriticalResponse))
            killIt = true;
832 833 834 835 836
        QByteArray msg = QByteArray::number(key);
        msg += ": " + cmd.command + " => ";
        QTC_ASSERT(cmd.callbackName, /**/);
        msg += cmd.callbackName;
        debugMessage(_(msg));
837
    }
838 839 840 841
    if (killIt) {
        debugMessage(_("TIMED OUT WAITING FOR GDB REPLY. COMMANDS STILL IN PROGRESS:"));
        int timeOut = m_commandTimer->interval();
        //m_commandTimer->stop();
842
        const QString msg = tr("The gdb process has not responded "
con's avatar
con committed
843
            "to a command within %1 seconds. This could mean it is stuck "
844
            "in an endless loop or taking longer than expected to perform "
845
            "the operation.\nYou can choose between waiting "