gdbengine.cpp 139 KB
Newer Older
con's avatar
con committed
1
2
3
4
/***************************************************************************
**
** This file is part of Qt Creator
**
5
** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
7
8
**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
9
10
11
**
** Non-Open Source Usage
**
con's avatar
con committed
12
13
14
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
15
16
17
18
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
con's avatar
con committed
19
20
21
22
23
24
25
26
27
28
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
29
** rights. These rights are described in the Nokia Qt GPL Exception
30
** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
31
32
**
***************************************************************************/
con's avatar
con committed
33
34
35
36
37
38
39
40
41
42
43
44
45
46

#include "gdbengine.h"

#include "debuggerconstants.h"
#include "debuggermanager.h"
#include "gdbmi.h"
#include "procinterrupt.h"

#include "disassemblerhandler.h"
#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
#include "stackhandler.h"
#include "watchhandler.h"
47
#include "sourcefileswindow.h"
con's avatar
con committed
48
49
50
51

#include "startexternaldialog.h"
#include "attachexternaldialog.h"

hjk's avatar
hjk committed
52
53
#include <utils/qtcassert.h>

con's avatar
con committed
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtCore/QTime>
#include <QtCore/QTimer>

#include <QtGui/QAction>
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
#include <QtGui/QToolTip>

#if defined(Q_OS_LINUX) || defined(Q_OS_MAC)
#include <unistd.h>
#include <dlfcn.h>
#endif

using namespace Debugger;
using namespace Debugger::Internal;
using namespace Debugger::Constants;

Q_DECLARE_METATYPE(Debugger::Internal::GdbMi);

//#define DEBUG_PENDING  1
//#define DEBUG_SUBITEM  1

#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
Roberto Raggi's avatar
Roberto Raggi committed
83
#   define PENDING_DEBUG(s)
con's avatar
con committed
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
#endif

static const QString tooltipIName = "tooltip";

///////////////////////////////////////////////////////////////////////
//
// GdbCommandType
//
///////////////////////////////////////////////////////////////////////

enum GdbCommandType
{
    GdbInvalidCommand = 0,

    GdbShowVersion = 100,
    GdbFileExecAndSymbols,
    GdbQueryPwd,
    GdbQuerySources,
    GdbAsyncOutput2,
103
    GdbStart,
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
104
    GdbAttached,
con's avatar
con committed
105
106
107
108
109
110
111
112
113
114
115
116
    GdbExecRun,
    GdbExecRunToFunction,
    GdbExecStep,
    GdbExecNext,
    GdbExecStepI,
    GdbExecNextI,
    GdbExecContinue,
    GdbExecFinish,
    GdbExecJumpToLine,
    GdbExecInterrupt,
    GdbInfoShared,
    GdbInfoProc,
117
    GdbInfoThreads,
con's avatar
con committed
118
119
    GdbQueryDataDumper1,
    GdbQueryDataDumper2,
120
    GdbTemporaryContinue,
con's avatar
con committed
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151

    BreakCondition = 200,
    BreakEnablePending,
    BreakSetAnnotate,
    BreakDelete,
    BreakList,
    BreakIgnore,
    BreakInfo,
    BreakInsert,
    BreakInsert1,

    DisassemblerList = 300,

    ModulesList = 400,

    RegisterListNames = 500,
    RegisterListValues,

    StackSelectThread = 600,
    StackListThreads,
    StackListFrames,
    StackListLocals,
    StackListArguments,

    WatchVarAssign = 700,             // data changed by user
    WatchVarListChildren,
    WatchVarCreate,
    WatchEvaluateExpression,
    WatchToolTip,
    WatchDumpCustomSetup,
    WatchDumpCustomValue1,           // waiting for gdb ack
152
    WatchDumpCustomValue2,           // waiting for actual data
con's avatar
con committed
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
    WatchDumpCustomEditValue,
};

QString dotEscape(QString str)
{
    str.replace(' ', '.');
    str.replace('\\', '.');
    str.replace('/', '.');
    return str;
}

QString currentTime()
{
    return QTime::currentTime().toString("hh:mm:ss.zzz");
}

static int &currentToken()
{
    static int token = 0;
    return token;
}

static bool isSkippableFunction(const QString &funcName, const QString &fileName)
{
    if (fileName.endsWith("kernel/qobject.cpp"))
        return true;
    if (fileName.endsWith("kernel/moc_qobject.cpp"))
        return true;
    if (fileName.endsWith("kernel/qmetaobject.cpp"))
        return true;
    if (fileName.endsWith(".moc"))
        return true;

    if (funcName.endsWith("::qt_metacall"))
        return true;

    return false;
}

static bool isLeavableFunction(const QString &funcName, const QString &fileName)
{
    if (funcName.endsWith("QObjectPrivate::setCurrentSender"))
        return true;
    if (fileName.endsWith("kernel/qmetaobject.cpp")
            && funcName.endsWith("QMetaObject::methodOffset"))
        return true;
    if (fileName.endsWith("kernel/qobject.h"))
        return true;
    if (fileName.endsWith("kernel/qobject.cpp")
            && funcName.endsWith("QObjectConnectionListVector::at"))
        return true;
    if (fileName.endsWith("kernel/qobject.cpp")
            && funcName.endsWith("~QObject"))
        return true;
    if (fileName.endsWith("thread/qmutex.cpp"))
        return true;
    if (fileName.endsWith("thread/qthread.cpp"))
        return true;
    if (fileName.endsWith("thread/qthread_unix.cpp"))
        return true;
    if (fileName.endsWith("thread/qmutex.h"))
        return true;
    if (fileName.contains("thread/qbasicatomic"))
        return true;
    if (fileName.contains("thread/qorderedmutexlocker_p"))
        return true;
    if (fileName.contains("arch/qatomic"))
        return true;
    if (fileName.endsWith("tools/qvector.h"))
        return true;
    if (fileName.endsWith("tools/qlist.h"))
        return true;
    if (fileName.endsWith("tools/qhash.h"))
        return true;
    if (fileName.endsWith("tools/qmap.h"))
        return true;
    if (fileName.endsWith("tools/qstring.h"))
        return true;
    if (fileName.endsWith("global/qglobal.h"))
        return true;

    return false;
}


///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

GdbEngine::GdbEngine(DebuggerManager *parent)
{
    q = parent;
    qq = parent->engineInterface();
248
249
    initializeVariables();
    initializeConnections();
con's avatar
con committed
250
251
252
253
}

GdbEngine::~GdbEngine()
{
hjk's avatar
hjk committed
254
255
    // prevent sending error messages afterwards
    m_gdbProc.disconnect(this);
con's avatar
con committed
256
257
}

258
void GdbEngine::initializeConnections()
con's avatar
con committed
259
260
261
262
263
264
265
266
267
268
269
270
{
    // Gdb Process interaction
    connect(&m_gdbProc, SIGNAL(error(QProcess::ProcessError)), this,
        SLOT(gdbProcError(QProcess::ProcessError)));
    connect(&m_gdbProc, SIGNAL(readyReadStandardOutput()), this,
        SLOT(readGdbStandardOutput()));
    connect(&m_gdbProc, SIGNAL(readyReadStandardError()), this,
        SLOT(readGdbStandardError()));
    connect(&m_gdbProc, SIGNAL(finished(int, QProcess::ExitStatus)), q,
        SLOT(exitDebugger()));

    // Output
271
272
    connect(&m_outputCollector, SIGNAL(byteDelivery(QByteArray)),
            SLOT(readDebugeeOutput(QByteArray)));
con's avatar
con committed
273
274
275
276
277
278
279
280
281
    connect(this, SIGNAL(gdbResponseAvailable()),
        this, SLOT(handleResponse()), Qt::QueuedConnection);

    connect(this, SIGNAL(gdbOutputAvailable(QString,QString)),
        q, SLOT(showDebuggerOutput(QString,QString)),
        Qt::QueuedConnection);
    connect(this, SIGNAL(gdbInputAvailable(QString,QString)),
        q, SLOT(showDebuggerInput(QString,QString)),
        Qt::QueuedConnection);
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
282
283
    connect(this, SIGNAL(applicationOutputAvailable(QString)),
        q, SLOT(showApplicationOutput(QString)),
con's avatar
con committed
284
285
286
        Qt::QueuedConnection);
}

287
288
289
290
void GdbEngine::initializeVariables()
{
    m_dataDumperState = DataDumperUninitialized;
    m_gdbVersion = 100;
hjk's avatar
hjk committed
291
    m_gdbBuildVersion = -1;
292
293
294
295
296
297
298
299
300
301

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

    m_modulesListOutdated = true;
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
    m_pendingRequests = 0;
    m_waitingForBreakpointSynchronizationToContinue = false;
302
    m_waitingForFirstBreakpointToBeHit = false;
303
    m_commandsToRunOnTemporaryBreak.clear();
304
305
}

con's avatar
con committed
306
307
308
309
310
311
312
void GdbEngine::gdbProcError(QProcess::ProcessError error)
{
    QString msg;
    switch (error) {
        case QProcess::FailedToStart:
            msg = QString(tr("The Gdb process failed to start. Either the "
                "invoked program '%1' is missing, or you may have insufficient "
313
                "permissions to invoke the program.")).arg(q->settings()->m_gdbCmd);
con's avatar
con committed
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
            break;
        case QProcess::Crashed:
            msg = tr("The Gdb process crashed some time after starting "
                "successfully.");
            break;
        case QProcess::Timedout:
            msg = tr("The last waitFor...() function timed out. "
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
            break;
        case QProcess::WriteError:
            msg = tr("An error occurred when attempting to write "
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
            break;
        case QProcess::ReadError:
            msg = tr("An error occurred when attempting to read from "
                "the Gdb process. For example, the process may not be running.");
            break;
        default:
            msg = tr("An unknown error in the Gdb process occurred. "
                "This is the default return value of error().");
    }

338
    q->showStatusMessage(msg);
con's avatar
con committed
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
    QMessageBox::critical(q->mainWindow(), tr("Error"), msg);
    // act as if it was closed by the core
    q->exitDebugger();
}

static void skipSpaces(const char *&from, const char *to)
{
    while (from != to && QChar(*from).isSpace())
        ++from;
}

static inline bool isNameChar(char c)
{
    // could be 'stopped' or 'shlibs-added'
    return (c >= 'a' && c <= 'z') || c == '-';
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
    Q_UNUSED(to);
    // 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

static void skipTerminator(const char *&from, const char *to)
{
    skipSpaces(from, to);
    // skip '(gdb)'
    if (from[0] == '(' && from[1] == 'g' && from[3] == 'b' && from[4] == ')')
        from += 5;
    skipSpaces(from, to);
}

381
382
383
384
385
386
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
    emit applicationOutputAvailable(m_outputCodec->toUnicode(
            data.constData(), data.length(), &m_outputCodecState));
}

hjk's avatar
hjk committed
387
388
389
390
391
void GdbEngine::debugMessage(const QString &msg)
{
    emit gdbOutputAvailable("debug:", msg);
}

con's avatar
con committed
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
// called asyncronously as response to Gdb stdout output in
// gdbResponseAvailable()
void GdbEngine::handleResponse()
{
    static QTime lastTime;

    emit gdbOutputAvailable("            ", currentTime());
    emit gdbOutputAvailable("stdout:", m_inbuffer);

#if 0
    qDebug() // << "#### start response handling #### "
        << currentTime()
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
        << "buf: " << m_inbuffer.left(1500) << "..."
        //<< "buf: " << m_inbuffer
        << "size:" << m_inbuffer.size();
#else
    //qDebug() << "buf: " << m_inbuffer;
#endif

    lastTime = QTime::currentTime();

    while (1) {
        if (m_inbuffer.isEmpty())
            break;

        const char *from = m_inbuffer.constData();
        // FIXME: check for line ending in '\n(gdb)\n'
        const char *to = from + m_inbuffer.size();
        const char *inner;

        //const char *oldfrom = from;

        //skipSpaces(from, to);
        skipTerminator(from, to);
        int token = -1;

        // token is a sequence of numbers
        for (inner = from; inner != to; ++inner)
            if (*inner < '0' || *inner > '9')
                break;
        if (from != inner) {
            token = QString(QByteArray(from, inner - from)).toInt();
            from = inner;
            //qDebug() << "found token " << token;
        }

        if (from == to) {
            //qDebug() << "Returning: " << toString();
            break;
        }

        // next char decides kind of record
        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))
hjk's avatar
hjk committed
456
                        break;
con's avatar
con committed
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
                    asyncClass += *from;
                }
                //qDebug() << "ASYNCCLASS" << asyncClass;

                GdbMi record;
                while (from != to && *from == ',') {
                    ++from; // skip ','
                    GdbMi data;
                    data.parseResultOrValue(from, to);
                    if (data.isValid()) {
                        //qDebug() << "parsed response: " << data.toString();
                        record.m_children += data;
                        record.m_type = GdbMi::Tuple;
                    }
                }
                //dump(oldfrom, from, record.toString());
                skipTerminator(from, to);
                m_inbuffer = QByteArray(from, to - from);
                if (asyncClass == "stopped") {
                    handleAsyncOutput(record);
477
478
                } else if (asyncClass == "running") {
                    // Archer has 'thread-id="all"' here
hjk's avatar
hjk committed
479
480
481
482
483
484
485
486
487
488
489
                #ifdef Q_OS_MAC
                } else if (asyncClass == "shlibs-updated") {
                    // MAC announces updated libs
                } 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=""}}
                #endif
con's avatar
con committed
490
                } else {
hjk's avatar
hjk committed
491
492
                    qDebug() << "IGNORED ASYNC OUTPUT "
                        << asyncClass << record.toString();
con's avatar
con committed
493
494
495
496
                }
                break;
            }

497
            case '~': {
498
                QByteArray data = GdbMi::parseCString(from, to);
499
500
501
502
503
504
                m_pendingConsoleStreamOutput += data;
                m_inbuffer = QByteArray(from, to - from);
                break;
            }

            case '@': {
505
                QByteArray data = GdbMi::parseCString(from, to);
506
507
508
509
510
                m_pendingTargetStreamOutput += data;
                m_inbuffer = QByteArray(from, to - from);
                break;
            }

con's avatar
con committed
511
            case '&': {
512
                QByteArray data = GdbMi::parseCString(from, to);
513
                m_pendingLogStreamOutput += data;
con's avatar
con committed
514
                m_inbuffer = QByteArray(from, to - from);
515
516
517
518
                // On Windows, the contents seem to depend on the debugger
                // version and/or OS version used.
                if (data.startsWith("warning:"))
                    qq->showApplicationOutput(data);
con's avatar
con committed
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
                break;
            }

            case '^': {
                GdbResultRecord record;

                record.token = token;

                for (inner = from; inner != to; ++inner)
                    if (*inner < 'a' || *inner > 'z')
                        break;

                QByteArray resultClass(from, inner - from);

                if (resultClass == "done")
                    record.resultClass = GdbResultDone;
                else if (resultClass == "running")
                    record.resultClass = GdbResultRunning;
                else if (resultClass == "connected")
                    record.resultClass = GdbResultConnected;
                else if (resultClass == "error")
                    record.resultClass = GdbResultError;
                else if (resultClass == "exit")
                    record.resultClass = GdbResultExit;
                else
                    record.resultClass = GdbResultUnknown;

                from = inner;
                skipSpaces(from, to);
                if (from != to && *from == ',') {
                    ++from;
                    record.data.parseTuple_helper(from, to);
                    record.data.m_type = GdbMi::Tuple;
                    record.data.m_name = "data";
                }
                skipSpaces(from, to);
                skipTerminator(from, to);

                //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
                //qDebug() << "\nTARGET STREAM:" + m_pendingTargetStreamOutput;
                //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
                record.data.setStreamOutput("logstreamoutput",
                    m_pendingLogStreamOutput);
                record.data.setStreamOutput("targetstreamoutput",
                    m_pendingTargetStreamOutput);
                record.data.setStreamOutput("consolestreamoutput",
                    m_pendingConsoleStreamOutput);
                QByteArray custom = m_customOutputForToken[token];
                if (!custom.isEmpty())
                    record.data.setStreamOutput("customvaluecontents",
                        '{' + custom + '}');
                //m_customOutputForToken.remove(token);
                m_pendingLogStreamOutput.clear();
                m_pendingTargetStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();

                //dump(oldfrom, from, record.toString());
                m_inbuffer = QByteArray(from, to - from);
                handleResultRecord(record);
                break;
            }
            default: {
                qDebug() << "FIXME: UNKNOWN CODE: " << c << " IN " << m_inbuffer;
                m_inbuffer = QByteArray(from, to - from);
                break;
            }
        }
    }

    //qDebug() << "##### end response handling ####\n\n\n"
    //    << currentTime() << lastTime.msecsTo(QTime::currentTime());
    lastTime = QTime::currentTime();
}

#ifdef Q_OS_MAC
static void fixMac(QByteArray &out)
{
    // HACK: gdb on Mac mixes MI1 and MI2 syntax. Not nice.
    // it returns:   9^done,locals={{name="a"},{name="w"}}
    // instead of:   9^done,locals=[{name="a"},{name="w"}]
    if (!out.contains("locals={{name"))
        return;

    static const QByteArray termArray("(gdb) ");
    int pos = out.indexOf(termArray);
    if (pos == -1)
        return;

    int pos1 = out.indexOf("={{");
    if (pos1 == -1)
        return;

    int pos2 = out.indexOf("]]");
    if (pos2 == -1)
        return;

    if (pos1 < pos && pos2 < pos) {
        out[pos1 + 1] = '[';
        out[pos2 + 1] = ']';
    }
}
#endif

void GdbEngine::readGdbStandardError()
{
624
    qWarning() << "Unexpected gdb stderr:" << m_gdbProc.readAllStandardError();
con's avatar
con committed
625
626
627
628
629
630
}

void GdbEngine::readGdbStandardOutput()
{
    // This is the function called whenever the Gdb process created
    // output. As a rule of thumb, stdout contains _real_ Gdb output
hjk's avatar
hjk committed
631
    // as responses to our command
con's avatar
con committed
632
    // and "spontaneous" events like messages on loaded shared libraries.
hjk's avatar
hjk committed
633
634
    // OTOH, stderr contains application output produced by qDebug etc.
    // There is no organized way to pass application stdout output.
con's avatar
con committed
635
636
637
638
639
640
641
642
643
644

    QByteArray out = m_gdbProc.readAllStandardOutput();

    //qDebug() << "\n\n\nPLUGIN OUT: '" <<  out.data() << "'\n\n\n";

    #ifdef Q_OS_MAC
    fixMac(out);
    #endif

    m_inbuffer.append(out);
hjk's avatar
hjk committed
645
    //QTC_ASSERT(!m_inbuffer.isEmpty(), return);
con's avatar
con committed
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660

    char c = m_inbuffer[m_inbuffer.size() - 1];
    static const QByteArray termArray("(gdb) ");
    if (out.indexOf(termArray) == -1 && c != 10 && c != 13) {
        //qDebug() << "\n\nBuffer not yet filled, waiting for more data to arrive";
        //qDebug() << m_inbuffer.data() << m_inbuffer.size();
        //qDebug() << "\n\n";
        return;
    }

    emit gdbResponseAvailable();
}

void GdbEngine::interruptInferior()
{
661
662
663
664
    qq->notifyInferiorStopRequested();
    if (m_gdbProc.state() == QProcess::NotRunning) {
        debugMessage("TRYING TO INTERRUPT INFERIOR WITHOUT RUNNING GDB");
        qq->notifyInferiorExited();
con's avatar
con committed
665
        return;
666
    }
con's avatar
con committed
667

hjk's avatar
hjk committed
668
    if (q->m_attachedPID > 0) {
669
670
671
672
        if (!interruptProcess(q->m_attachedPID))
        //    qq->notifyInferiorStopped();
        //else
            debugMessage(QString("CANNOT INTERRUPT %1").arg(q->m_attachedPID));
con's avatar
con committed
673
674
675
676
677
        return;
    }

#ifdef Q_OS_MAC
    sendCommand("-exec-interrupt", GdbExecInterrupt);
678
    //qq->notifyInferiorStopped();
con's avatar
con committed
679
#else
680
681
682
683
    if (!interruptChildProcess(m_gdbProc.pid()))
    //    qq->notifyInferiorStopped();
    //else
        debugMessage(QString("CANNOT STOP INFERIOR"));
con's avatar
con committed
684
685
686
687
688
689
690
#endif
}

void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
    int pid = pid0.toInt();
    if (pid == 0) {
hjk's avatar
hjk committed
691
        debugMessage(QString("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
692
693
        return;
    }
hjk's avatar
hjk committed
694
    if (pid == q->m_attachedPID)
con's avatar
con committed
695
        return;
hjk's avatar
hjk committed
696
    debugMessage(QString("FOUND PID %1").arg(pid));
hjk's avatar
hjk committed
697
    q->m_attachedPID = pid;
Roberto Raggi's avatar
Roberto Raggi committed
698
    qq->notifyInferiorPidChanged(pid);
con's avatar
con committed
699
700
701
}

void GdbEngine::sendSynchronizedCommand(const QString & command,
702
    int type, const QVariant &cookie, StopNeeded needStop)
con's avatar
con committed
703
{
704
    sendCommand(command, type, cookie, needStop, Synchronized);
con's avatar
con committed
705
706
707
}

void GdbEngine::sendCommand(const QString &command, int type,
708
    const QVariant &cookie, StopNeeded needStop, Synchronization synchronized)
con's avatar
con committed
709
710
{
    if (m_gdbProc.state() == QProcess::NotRunning) {
hjk's avatar
hjk committed
711
        debugMessage("NO GDB PROCESS RUNNING, CMD IGNORED: " + command);
con's avatar
con committed
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
        return;
    }

    if (synchronized) {
        ++m_pendingRequests;
        PENDING_DEBUG("   TYPE " << type << " INCREMENTS PENDING TO: "
            << m_pendingRequests << command);
    } else {
        PENDING_DEBUG("   UNKNOWN TYPE " << type << " LEAVES PENDING AT: "
            << m_pendingRequests << command);
    }

    GdbCookie cmd;
    cmd.synchronized = synchronized;
    cmd.command = command;
    cmd.type = type;
    cmd.cookie = cookie;

730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
    if (needStop && q->status() != DebuggerInferiorStopped
            && q->status() != DebuggerProcessStartingUp) {
        // queue the commands that we cannot send at once
        QTC_ASSERT(q->status() == DebuggerInferiorRunning,
            qDebug() << "STATUS: " << q->status());
        q->showStatusMessage(tr("Stopping temporarily."));
        debugMessage("QUEUING COMMAND " + cmd.command);
        m_commandsToRunOnTemporaryBreak.append(cmd);
        interruptInferior();
    } else if (!command.isEmpty()) {
        ++currentToken();
        m_cookieForToken[currentToken()] = cmd;
        cmd.command = QString::number(currentToken()) + cmd.command;
        if (cmd.command.contains("%1"))
            cmd.command = cmd.command.arg(currentToken());
con's avatar
con committed
745
746
747

        m_gdbProc.write(cmd.command.toLatin1() + "\r\n");
        //emit gdbInputAvailable(QString(), "         " +  currentTime());
748
749
        //emit gdbInputAvailable(QString(), "[" + currentTime() + "]    " + cmd.command);
        emit gdbInputAvailable(QString(), cmd.command);
con's avatar
con committed
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
    }
}

void GdbEngine::handleResultRecord(const GdbResultRecord &record)
{
    //qDebug() << "TOKEN: " << record.token
    //    << " ACCEPTABLE: " << m_oldestAcceptableToken;
    //qDebug() << "";
    //qDebug() << "\nRESULT" << record.token << record.toString();

    int token = record.token;
    if (token == -1)
        return;

    GdbCookie cmd = m_cookieForToken.take(token);

    if (record.token < m_oldestAcceptableToken) {
        //qDebug() << "### SKIPPING OLD RESULT " << record.toString();
        //QMessageBox::information(m_mainWindow, tr("Skipped"), "xxx");
        return;
    }

#if 0
    qDebug() << "# handleOutput, "
        << "cmd type: " << cmd.type
        << "cmd synchronized: " << cmd.synchronized
        << "\n record: " << record.toString();
#endif

    // << "\n data: " << record.data.toString(true);

    if (cmd.type != GdbInvalidCommand)
        handleResult(record, cmd.type, cmd.cookie);

    if (cmd.synchronized) {
        --m_pendingRequests;
        PENDING_DEBUG("   TYPE " << cmd.type << " DECREMENTS PENDING TO: "
            << m_pendingRequests << cmd.command);
788
789
        if (m_pendingRequests <= 0) {
            PENDING_DEBUG(" ....  AND TRIGGERS MODEL UPDATE");
con's avatar
con committed
790
            updateWatchModel2();
791
        }
con's avatar
con committed
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
    } else {
        PENDING_DEBUG("   UNKNOWN TYPE " << cmd.type << " LEAVES PENDING AT: "
            << m_pendingRequests << cmd.command);
    }
}

void GdbEngine::handleResult(const GdbResultRecord & record, int type,
    const QVariant & cookie)
{
    switch (type) {
        case GdbExecNext:
        case GdbExecStep:
        case GdbExecNextI:
        case GdbExecStepI:
        case GdbExecContinue:
        case GdbExecFinish:
            // evil code sharing
            handleExecRun(record);
            break;
811

812
813
        case GdbStart:
            handleStart(record);
814
            break;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
815
816
817
        case GdbAttached:
            handleAttach();
            break;
con's avatar
con committed
818
819
820
        case GdbInfoProc:
            handleInfoProc(record);
            break;
821
822
823
        case GdbInfoThreads:
            handleInfoThreads(record);
            break;
con's avatar
con committed
824
825
826
827
828
829
830
831
832
833
834
835
836

        case GdbShowVersion:
            handleShowVersion(record);
            break;
        case GdbFileExecAndSymbols:
            handleFileExecAndSymbols(record);
            break;
        case GdbExecRunToFunction:
            // that should be "^running". We need to handle the resulting
            // "Stopped"
            //handleExecRunToFunction(record);
            break;
        case GdbExecInterrupt:
837
            qq->notifyInferiorStopped();
con's avatar
con committed
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
            break;
        case GdbExecJumpToLine:
            handleExecJumpToLine(record);
            break;
        case GdbQueryPwd:
            handleQueryPwd(record);
            break;
        case GdbQuerySources:
            handleQuerySources(record);
            break;
        case GdbAsyncOutput2:
            handleAsyncOutput2(cookie.value<GdbMi>());
            break;
        case GdbInfoShared:
            handleInfoShared(record);
            break;
        case GdbQueryDataDumper1:
            handleQueryDataDumper1(record);
            break;
        case GdbQueryDataDumper2:
            handleQueryDataDumper2(record);
            break;
860
861
862
863
        case GdbTemporaryContinue:
            continueInferior();
            q->showStatusMessage(tr("Continuing after temporary stop."));
            break;
con's avatar
con committed
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944

        case BreakList:
            handleBreakList(record);
            break;
        case BreakInsert:
            handleBreakInsert(record, cookie.toInt());
            break;
        case BreakInsert1:
            handleBreakInsert1(record, cookie.toInt());
            break;
        case BreakInfo:
            handleBreakInfo(record, cookie.toInt());
            break;
        case BreakEnablePending:
        case BreakDelete:
            // nothing
            break;
        case BreakIgnore:
            handleBreakIgnore(record, cookie.toInt());
            break;
        case BreakCondition:
            handleBreakCondition(record, cookie.toInt());
            break;

        case DisassemblerList:
            handleDisassemblerList(record, cookie.toString());
            break;

        case ModulesList:
            handleModulesList(record);
            break;

        case RegisterListNames:
            handleRegisterListNames(record);
            break;
        case RegisterListValues:
            handleRegisterListValues(record);
            break;

        case StackListFrames:
            handleStackListFrames(record);
            break;
        case StackListThreads:
            handleStackListThreads(record, cookie.toInt());
            break;
        case StackSelectThread:
            handleStackSelectThread(record, cookie.toInt());
            break;
        case StackListLocals:
            handleStackListLocals(record);
            break;
        case StackListArguments:
            handleStackListArguments(record);
            break;

        case WatchVarListChildren:
            handleVarListChildren(record, cookie.value<WatchData>());
            break;
        case WatchVarCreate:
            handleVarCreate(record, cookie.value<WatchData>());
            break;
        case WatchVarAssign:
            handleVarAssign();
            break;
        case WatchEvaluateExpression:
            handleEvaluateExpression(record, cookie.value<WatchData>());
            break;
        case WatchToolTip:
            handleToolTip(record, cookie.toString());
            break;
        case WatchDumpCustomValue1:
            handleDumpCustomValue1(record, cookie.value<WatchData>());
            break;
        case WatchDumpCustomValue2:
            handleDumpCustomValue2(record, cookie.value<WatchData>());
            break;
        case WatchDumpCustomSetup:
            handleDumpCustomSetup(record);
            break;

        default:
hjk's avatar
hjk committed
945
946
            debugMessage(QString("FIXME: GdbEngine::handleResult: "
                "should not happen %1").arg(type));
con's avatar
con committed
947
948
949
950
951
952
953
954
            break;
    }
}

void GdbEngine::executeDebuggerCommand(const QString &command)
{
    //createGdbProcessIfNeeded();
    if (m_gdbProc.state() == QProcess::NotRunning) {
hjk's avatar
hjk committed
955
        debugMessage("NO GDB PROCESS RUNNING, PLAIN CMD IGNORED: " + command);
con's avatar
con committed
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
        return;
    }

    GdbCookie cmd;
    cmd.command = command;
    cmd.type = -1;

    emit gdbInputAvailable(QString(), cmd.command);
    m_gdbProc.write(cmd.command.toLatin1() + "\r\n");
}

void GdbEngine::handleQueryPwd(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as 'pwd'
    // is supported by MI
    //qDebug() << "PWD OUTPUT:" <<  record.toString();
    // Gdb responses _unless_ we get an error first.
    if (record.resultClass == GdbResultDone) {
#ifdef Q_OS_LINUX
        // "5^done,{logstreamoutput="pwd ",consolestreamoutput
        // ="Working directory /home/apoenitz/dev/work/test1.  "}
        m_pwd = record.data.findChild("consolestreamoutput").data();
        int pos = m_pwd.indexOf("Working directory");
        m_pwd = m_pwd.mid(pos + 18);
        m_pwd = m_pwd.trimmed();
        if (m_pwd.endsWith('.'))
            m_pwd.chop(1);
#endif
#ifdef Q_OS_WIN
        // ~"Working directory C:\\Users\\Thomas\\Documents\\WBTest3\\debug.\n"
        m_pwd = record.data.findChild("consolestreamoutput").data();
        m_pwd = m_pwd.trimmed();
#endif
hjk's avatar
hjk committed
989
        debugMessage("PWD RESULT: " + m_pwd);
con's avatar
con committed
990
991
992
993
994
995
    }
}

void GdbEngine::handleQuerySources(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
996
        QMap<QString, QString> oldShortToFull = m_shortToFullName;
con's avatar
con committed
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
        m_shortToFullName.clear();
        m_fullToShortName.clear();
        // "^done,files=[{file="../../../../bin/gdbmacros/gdbmacros.cpp",
        // fullname="/data5/dev/ide/main/bin/gdbmacros/gdbmacros.cpp"},
        GdbMi files = record.data.findChild("files");
        foreach (const GdbMi &item, files.children()) {
            QString fileName = item.findChild("file").data();
            GdbMi fullName = item.findChild("fullname");
            QString full = fullName.data();
            #ifdef Q_OS_WIN
            full = QDir::cleanPath(full);
            #endif
            if (fullName.isValid() && QFileInfo(full).isReadable()) {
                //qDebug() << "STORING 2: " << fileName << full;
                m_shortToFullName[fileName] = full;
                m_fullToShortName[full] = fileName;
            }
        }
1015
1016
        if (m_shortToFullName != oldShortToFull)
            qq->sourceFileWindow()->setSourceFiles(m_shortToFullName);
con's avatar
con committed
1017
1018
1019
    }
}

1020
1021
1022
1023
void GdbEngine::handleInfoThreads(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
        // FIXME: use something more robust
Roberto Raggi's avatar
Roberto Raggi committed
1024
        // WIN:     * 3 Thread 2312.0x4d0  0x7c91120f in ?? ()
1025
1026
1027
1028
1029
1030
1031
1032
        // LINUX:   * 1 Thread 0x7f466273c6f0 (LWP 21455)  0x0000000000404542 in ...
        QRegExp re(QLatin1String("Thread (\\d+)\\.0x.* in"));
        QString data = record.data.findChild("consolestreamoutput").data();
        if (re.indexIn(data) != -1)
            maybeHandleInferiorPidChanged(re.cap(1));
    }
}

con's avatar
con committed
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
void GdbEngine::handleInfoProc(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
        #if defined(Q_OS_MAC)
        //^done,process-id="85075"
        maybeHandleInferiorPidChanged(record.data.findChild("process-id").data());
        #endif

        #if defined(Q_OS_LINUX) || defined(Q_OS_WIN)
        // FIXME: use something more robust
        QRegExp re(QLatin1String("process (\\d+)"));
        QString data = record.data.findChild("consolestreamoutput").data();
        if (re.indexIn(data) != -1)
            maybeHandleInferiorPidChanged(re.cap(1));
        #endif
    }
}

void GdbEngine::handleInfoShared(const GdbResultRecord &record)
{
    if (record.resultClass == GdbResultDone) {
        // let the modules handler do the parsing
        handleModulesList(record);
    }
}

void GdbEngine::handleExecJumpToLine(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as 'jump'
    // is supported by MI
    // "&"jump /home/apoenitz/dev/work/test1/test1.cpp:242"
    // ~"Continuing at 0x4058f3."
    // ~"run1 (argc=1, argv=0x7fffb213a478) at test1.cpp:242"
    // ~"242\t x *= 2;"
    //109^done"
    qq->notifyInferiorStopped();
1069
    q->showStatusMessage(tr("Jumped. Stopped."));
con's avatar
con committed
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
    QString output = record.data.findChild("logstreamoutput").data();
    if (!output.isEmpty())
        return;
    QString fileAndLine = output.section(' ', 1, 1);
    QString file = fileAndLine.section(':', 0, 0);
    int line = fileAndLine.section(':', 1, 1).toInt();
    q->gotoLocation(file, line, true);
}

void GdbEngine::handleExecRunToFunction(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as there's a real
    // reason given when the temporary breakpoint is hit.
    // reight now we get:
    // 14*stopped,thread-id="1",frame={addr="0x0000000000403ce4",
    // func="foo",args=[{name="str",value="@0x7fff0f450460"}],
    // file="main.cpp",fullname="/tmp/g/main.cpp",line="37"}
    qq->notifyInferiorStopped();
1088
    q->showStatusMessage(tr("Run to Function finished. Stopped."));
con's avatar
con committed
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
    GdbMi frame = record.data.findChild("frame");
    QString file = frame.findChild("fullname").data();
    int line = frame.findChild("line").data().toInt();
    qDebug() << "HIT: " << file << line << " IN " << frame.toString()
        << " -- " << record.toString();
    q->gotoLocation(file, line, true);
}

static bool isExitedReason(const QString &reason)
{
    return reason == QLatin1String("exited-normally")   // inferior exited normally
        || reason == QLatin1String("exited-signalled")  // inferior exited because of a signal
        //|| reason == QLatin1String("signal-received") // inferior received signal
        || reason == QLatin1String("exited");           // inferior exited
}

static bool isStoppedReason(const QString &reason)
{
    return reason == QLatin1String("function-finished")  // -exec-finish
        || reason == QLatin1String("signal-received")  // handled as "isExitedReason"
        || reason == QLatin1String("breakpoint-hit")     // -exec-continue
        || reason == QLatin1String("end-stepping-range") // -exec-next, -exec-step
        || reason == QLatin1String("location-reached")   // -exec-until
        || reason == QLatin1String("access-watchpoint-trigger")
        || reason == QLatin1String("read-watchpoint-trigger")
#ifdef Q_OS_MAC
        || reason.isEmpty()
#endif
    ;
}

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1120
1121
1122
1123
1124
1125
1126
1127
1128
void GdbEngine::handleAqcuiredInferior()
{
    #if defined(Q_OS_WIN)
    sendCommand("info thread", GdbInfoThreads);
    #endif
    #if defined(Q_OS_LINUX)
    sendCommand("info proc", GdbInfoProc);
    #endif
    #if defined(Q_OS_MAC)
Marius Bugge Monsen's avatar
Marius Bugge Monsen committed
1129
    sendCommand("info pid", GdbInfoProc, QVariant(), NeedsStop);
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1130
1131
1132
1133
    #endif
    reloadSourceFiles();
    tryLoadCustomDumpers();

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1134
#ifndef Q_OS_MAC
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
    // intentionally after tryLoadCustomDumpers(),
    // otherwise we'd interupt solib loading.
    if (qq->wantsAllPluginBreakpoints()) {
        sendCommand("set auto-solib-add on");
        sendCommand("set stop-on-solib-events 0");
        sendCommand("sharedlibrary .*");
    } else if (qq->wantsSelectedPluginBreakpoints()) {
        sendCommand("set auto-solib-add on");
        sendCommand("set stop-on-solib-events 1");
        sendCommand("sharedlibrary " + qq->selectedPluginBreakpointsPattern());
    } else if (qq->wantsNoPluginBreakpoints()) {
        // should be like that already
        sendCommand("set auto-solib-add off");
        sendCommand("set stop-on-solib-events 0");
    }
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1150
#endif
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1151
1152
    // nicer to see a bit of the world we live in
    reloadModules();
1153
    attemptBreakpointSynchronization();
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1154
1155
}

con's avatar
con committed
1156
1157
1158
1159
void GdbEngine::handleAsyncOutput(const GdbMi &data)
{
    const QString reason = data.findChild("reason").data();

1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
    if (isExitedReason(reason)) {
        qq->notifyInferiorExited();
        QString msg = "Program exited normally";
        if (reason == "exited") {
            msg = "Program exited with exit code "
                + data.findChild("exit-code").toString();
        } else if (reason == "exited-signalled") {
            msg = "Program exited after receiving signal "
                + data.findChild("signal-name").toString();
        } else if (reason == "signal-received") {
            msg = "Program exited after receiving signal "
                + data.findChild("signal-name").toString();
        }
        q->showStatusMessage(msg);
        // FIXME: shouldn't this use a statis change?
        debugMessage("CALLING PARENT EXITDEBUGGER");
        q->exitDebugger();
        return;
    }


1181
1182
1183
    //MAC: bool isFirstStop = data.findChild("bkptno").data() == "1";
    //!MAC: startSymbolName == data.findChild("frame").findChild("func")
    if (m_waitingForFirstBreakpointToBeHit) {
1184
1185
1186
1187
        // If the executable dies already that early we might get something
        // like stdout:49*stopped,reason="exited",exit-code="0177"
        // This is handled now above.

1188
        qq->notifyInferiorStopped();
1189
        m_waitingForFirstBreakpointToBeHit = false;
1190
1191
1192
        //
        // this will "continue" if done
        m_waitingForBreakpointSynchronizationToContinue = true;
1193
1194
        //
        // that's the "early stop"
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1195
        handleAqcuiredInferior();
1196
        return;
1197
1198
    }

1199
    if (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
Roberto Raggi's avatar
Roberto Raggi committed
1200
        QTC_ASSERT(q->status() == DebuggerInferiorStopRequested,
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
            qDebug() << "STATUS: " << q->status())
        qq->notifyInferiorStopped();
        q->showStatusMessage(tr("Temporarily stopped."));
        // FIXME: racy
        foreach (const GdbCookie &cmd, m_commandsToRunOnTemporaryBreak) {
            debugMessage(QString("RUNNING QUEUED COMMAND %1 %2")
                .arg(cmd.command).arg(cmd.type));
            sendCommand(cmd.command, cmd.type, cmd.cookie);
        }
        sendCommand("p temporaryStop", GdbTemporaryContinue);
        m_commandsToRunOnTemporaryBreak.clear();
        q->showStatusMessage(tr("Handling queued commands."));
        return;
    }

1216
    QString msg = data.findChild("consolestreamoutput").data();
1217
1218
    if (msg.contains("Stopped due to shared library event") || reason.isEmpty()) {
        if (qq->wantsSelectedPluginBreakpoints()) {
hjk's avatar
hjk committed
1219
1220
            debugMessage("SHARED LIBRARY EVENT: " + data.toString());
            debugMessage("PATTERN: " + qq->selectedPluginBreakpointsPattern());
1221
            sendCommand("sharedlibrary " + qq->selectedPluginBreakpointsPattern());
con's avatar
con committed
1222
            continueInferior();
1223
1224
            q->showStatusMessage(tr("Loading %1...").arg(QString(data.toString())));
            return;
con's avatar
con committed
1225
        }
1226
        m_modulesListOutdated = true;
1227
        // fall through
con's avatar
con committed
1228
1229
    }

1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
    // seen on XP after removing a breakpoint while running
    //  stdout:945*stopped,reason="signal-received",signal-name="SIGTRAP",
    //  signal-meaning="Trace/breakpoint trap",thread-id="2",
    //  frame={addr="0x7c91120f",func="ntdll!DbgUiConnectToDbg",
    //  args=[],from="C:\\WINDOWS\\system32\\ntdll.dll"}
    if (reason == "signal-received"
          && data.findChild("signal-name").toString() == "SIGTRAP") {
        continueInferior();
        return;
    }

1241
    //tryLoadCustomDumpers();
con's avatar
con committed
1242
1243
1244
1245
1246
1247

    // jump over well-known frames
    static int stepCounter = 0;
    if (qq->skipKnownFrames()) {
        if (reason == "end-stepping-range" || reason == "function-finished") {
            GdbMi frame = data.findChild("frame");
hjk's avatar
hjk committed
1248
            //debugMessage(frame.toString());
con's avatar
con committed
1249
1250
1251
1252
1253
1254
            m_currentFrame = frame.findChild("addr").data() + '%' +
                 frame.findChild("func").data() + '%';

            QString funcName = frame.findChild("func").data();
            QString fileName = frame.findChild("file").data();
            if (isLeavableFunction(funcName, fileName)) {
hjk's avatar
hjk committed
1255
                //debugMessage("LEAVING" + funcName);
con's avatar
con committed
1256
1257
1258
1259
1260
1261
                ++stepCounter;
                q->stepOutExec();
                //stepExec();
                return;
            }
            if (isSkippableFunction(funcName, fileName)) {
hjk's avatar
hjk committed
1262
                //debugMessage("SKIPPING" + funcName);
con's avatar
con committed
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
                ++stepCounter;
                q->stepExec();
                return;
            }
            //if (stepCounter)
            //    qDebug() << "STEPCOUNTER:" << stepCounter;
            stepCounter = 0;
        }
    }

    if (isStoppedReason(reason) || reason.isEmpty()) {
1274
        if (m_modulesListOutdated) {
1275
            reloadModules();
1276
            m_modulesListOutdated = false;
1277
        }
con's avatar
con committed
1278
1279
        // Need another round trip
        if (reason == "breakpoint-hit") {
1280
            q->showStatusMessage(tr("Stopped at breakpoint"));
con's avatar
con committed
1281
            GdbMi frame = data.findChild("frame");
hjk's avatar
hjk committed
1282
            //debugMessage("HIT BREAKPOINT: " + frame.toString());
con's avatar
con committed
1283
1284
1285
            m_currentFrame = frame.findChild("addr").data() + '%' +
                 frame.findChild("func").data() + '%';

1286
            QApplication::alert(q->mainWindow(), 3000);
1287
            reloadSourceFiles();
con's avatar
con committed
1288
1289
1290
1291
            sendCommand("-break-list", BreakList);
            QVariant var = QVariant::fromValue<GdbMi>(data);
            sendCommand("p 0", GdbAsyncOutput2, var);  // dummy
        } else {
hjk's avatar
hjk committed
1292
            q->showStatusMessage(tr("Stopped: \"%1\"").arg(reason));
con's avatar
con committed
1293
1294
1295
1296
1297
            handleAsyncOutput2(data);
        }
        return;
    }

hjk's avatar
hjk committed
1298
    debugMessage("STOPPED FOR UNKNOWN REASON: " + data.toString());
con's avatar
con committed
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
    // Ignore it. Will be handled with full response later in the
    // JumpToLine or RunToFunction handlers
#if 1
    // FIXME: remove this special case as soon as there's a real
    // reason given when the temporary breakpoint is hit.
    // reight now we get:
    // 14*stopped,thread-id="1",frame={addr="0x0000000000403ce4",
    // func="foo",args=[{name="str",value="@0x7fff0f450460"}],
    // file="main.cpp",fullname="/tmp/g/main.cpp",line="37"}
    //
    // MAC yields sometimes:
    // stdout:3661*stopped,time={wallclock="0.00658",user="0.00142",
    // system="0.00136",start="1218810678.805432",end="1218810678.812011"}
    q->resetLocation();
    qq->notifyInferiorStopped();
1314
    q->showStatusMessage(tr("Run to Function finished. Stopped."));
con's avatar
con committed
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
    GdbMi frame = data.findChild("frame");
    QString file = frame.findChild("fullname").data();
    int line = frame.findChild("line").data().toInt();
    qDebug() << "HIT: " << file << line << " IN " << frame.toString()
        << " -- " << data.toString();
    q->gotoLocation(file, line, true);
#endif
}


void GdbEngine::handleAsyncOutput2(const GdbMi &data)
{
    qq->notifyInferiorStopped();

    //
    // Stack
    //
    qq->stackHandler()->setCurrentIndex(0);
    updateLocals(); // Quick shot

    int currentId = data.findChild("thread-id").data().toInt();
    sendSynchronizedCommand("-stack-list-frames", StackListFrames);
    if (supportsThreads())
        sendSynchronizedCommand("-thread-list-ids", StackListThreads, currentId);

    //
    // Disassembler
    //
    // Linux:
    //"79*stopped,reason="end-stepping-range",reason="breakpoint-hit",bkptno="1",
    //thread-id="1",frame={addr="0x0000000000405d8f",func="run1",
    //args=[{name="argc",value="1"},{name="argv",value="0x7fffb7c23058"}],
    //file="test1.cpp",fullname="/home/apoenitz/dev/work/test1/test1.cpp",line="261"}"
    // Mac: (but only sometimes)
    m_address = data.findChild("frame").findChild("addr").data();
    qq->reloadDisassembler();

    //
    // Registers
    //
    qq->reloadRegisters();
}

void GdbEngine::handleShowVersion(const GdbResultRecord &response)
{
hjk's avatar
hjk committed
1360
1361
1362
    //qDebug () << "VERSION 2:" << response.data.findChild("consolestreamoutput").data();
    //qDebug () << "VERSION:" << response.toString();
    debugMessage("VERSION:" + response.toString());
con's avatar
con committed
1363
1364
    if (response.resultClass == GdbResultDone) {
        m_gdbVersion = 100;
hjk's avatar
hjk committed
1365
        m_gdbBuildVersion = -1;
con's avatar
con committed
1366
        QString msg = response.data.findChild("consolestreamoutput").data();
hjk's avatar
hjk committed
1367
        QRegExp supported("GNU gdb(.*) (\\d+)\\.(\\d+)(\\.(\\d+))?(-(\\d+))?");
1368
        if (supported.indexIn(msg) == -1) {
hjk's avatar
hjk committed
1369
            debugMessage("UNSUPPORTED GDB VERSION " + msg);
con's avatar
con committed
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
            QStringList list = msg.split("\n");
            while (list.size() > 2)
                list.removeLast();
            msg = tr("The debugger you are using identifies itself as:")
                + "<p><p>" + list.join("<br>") + "<p><p>"
                + tr("This version is not officially supported by Qt Creator.\n"
                     "Debugging will most likely not work well.\n"
                     "Using gdb 6.7 or later is strongly recommended.");
#if 0
            // ugly, but 'Show again' check box...
            static QErrorMessage *err = new QErrorMessage(m_mainWindow);
            err->setMinimumSize(400, 300);
            err->showMessage(msg);
#else
            //QMessageBox::information(m_mainWindow, tr("Warning"), msg);
#endif
1386
1387
1388
        } else {
            m_gdbVersion = 10000 * supported.cap(2).toInt()
                         +   100 * supported.cap(3).toInt()
hjk's avatar
hjk committed
1389
                         +     1 * supported.cap(5).toInt();
hjk's avatar
hjk committed
1390
1391
            m_gdbBuildVersion = supported.cap(7).toInt();
            debugMessage(QString("GDB VERSION: %1").arg(m_gdbVersion));
con's avatar
con committed
1392
        }
hjk's avatar
hjk committed
1393
        //qDebug () << "VERSION 3:" << m_gdbVersion << m_gdbBuildVersion;
con's avatar
con committed
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
    }
}

void GdbEngine::handleFileExecAndSymbols
    (const GdbResultRecord &response)
{
    if (response.resultClass == GdbResultDone) {
        //m_breakHandler->clearBreakMarkers();
    } else if (response.resultClass == GdbResultError) {
        QString msg = response.data.findChild("msg").data();
        QMessageBox::critical(q->mainWindow(), tr("Error"),
            tr("Starting executable failed:\n") + msg);
hjk's avatar
hjk committed
1406
        QTC_ASSERT(q->status() == DebuggerInferiorRunning, /**/);
con's avatar
con committed
1407
1408
1409
1410
1411
1412
1413
1414
        interruptInferior();
    }
}

void GdbEngine::handleExecRun(const GdbResultRecord &response)
{
    if (response.resultClass == GdbResultRunning) {
        qq->notifyInferiorRunning();
1415
        q->showStatusMessage(tr("Running..."));
con's avatar
con committed
1416
1417
1418
1419
1420
    } else if (response.resultClass == GdbResultError) {
        QString msg = response.data.findChild("msg").data();
        if (msg == "Cannot find bounds of current function") {
            qq->notifyInferiorStopped();
            //q->showStatusMessage(tr("No debug information available. "
1421
            //  "Leaving function..."));
con's avatar
con committed
1422
1423
1424
1425
            //stepOutExec();
        } else {
            QMessageBox::critical(q->mainWindow(), tr("Error"),
                tr("Starting executable failed:\n") + msg);
hjk's avatar
hjk committed
1426
            QTC_ASSERT(q->status() == DebuggerInferiorRunning, /**/);
con's avatar
con committed
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
            interruptInferior();
        }
    }
}

void GdbEngine::queryFullName(const QString &fileName, QString *full)
{
    *full = fullName(fileName);
}

QString GdbEngine::shortName(const QString &fullName)
{
    return m_fullToShortName.value(fullName, QString());
}

QString GdbEngine::fullName(const QString &fileName)
{
    //QString absName = m_manager->currentWorkingDirectory() + "/" + file; ??
    if (fileName.isEmpty())
        return QString();
    QString full = m_shortToFullName.value(fileName, QString());
hjk's avatar
hjk committed
1448
    //debugMessage("RESOLVING: " + fileName + " " +  full);
con's avatar
con committed
1449
1450
1451
1452
1453
1454
1455
1456
1457
    if (!full.isEmpty())
        return full;
    QFileInfo fi(fileName);
    if (!fi.isReadable())
        return QString();
    full = fi.absoluteFilePath();
    #ifdef Q_OS_WIN
    full = QDir::cleanPath(full);
    #endif
hjk's avatar
hjk committed
1458
    //debugMessage("STORING: " + fileName + " " + full);
con's avatar
con committed
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
    m_shortToFullName[fileName] = full;
    m_fullToShortName[full] = fileName;
    return full;
}

QString GdbEngine::fullName(const QStringList &candidates)
{
    QString full;
    foreach (const QString &fileName, candidates) {
        full = fullName(fileName);
        if (!full.isEmpty())
            return full;
    }
    foreach (const QString &fileName, candidates) {
        if (!fileName.isEmpty())
            return fileName;
    }
    return full;
}

void GdbEngine::shutdown()
{
    exitDebugger();
}

void GdbEngine::exitDebugger()
{
hjk's avatar
hjk committed
1486
1487
1488
1489
    debugMessage(QString("GDBENGINE EXITDEBUFFER: %1").arg(m_gdbProc.state()));
    if (m_gdbProc.state() == QProcess::Starting) {
        debugMessage(QString("WAITING FOR GDB STARTUP TO SHUTDOWN: %1")
            .arg(m_gdbProc.state()));
con's avatar
con committed
1490
        m_gdbProc.waitForStarted();
hjk's avatar
hjk committed
1491
    }
con's avatar
con committed
1492
    if (m_gdbProc.state() == QProcess::Running) {
hjk's avatar
hjk committed
1493
1494
        debugMessage(QString("WAITING FOR RUNNING GDB TO SHUTDOWN: %1")
            .arg(m_gdbProc.state()));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
        if (q->status() != DebuggerInferiorStopped
            && q->status() != DebuggerProcessStartingUp) {
            QTC_ASSERT(q->status() == DebuggerInferiorRunning,
                qDebug() << "STATUS ON EXITDEBUGGER: " << q->status());
            interruptInferior();
        }
        if (q->startMode() == DebuggerManager::AttachExternal)
            sendCommand("detach");
        else
            sendCommand("kill");
con's avatar
con committed
1505
1506
1507
1508
        sendCommand("-gdb-exit");
        // 20s can easily happen when loading webkit debug information
        m_gdbProc.waitForFinished(20000);
        if (m_gdbProc.state() != QProcess::Running) {
hjk's avatar
hjk committed
1509
1510
            debugMessage(QString("FORCING TERMINATION: %1")
                .arg(m_gdbProc.state()));
con's avatar
con committed
1511
1512
1513
1514
1515
            m_gdbProc.terminate();
            m_gdbProc.waitForFinished(20000);
        }
    }
    if (m_gdbProc.state() != QProcess::NotRunning)
hjk's avatar
hjk committed
1516
        debugMessage("PROBLEM STOPPING DEBUGGER");
con's avatar
con committed
1517

1518
    m_outputCollector.shutdown();
1519
    initializeVariables();
1520
    //q->settings()->m_debugDumpers = false;
con's avatar
con committed
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
}


int GdbEngine::currentFrame() const
{
    return qq->stackHandler()->currentIndex();
}


bool GdbEngine::startDebugger()
{
    QStringList gdbArgs;

    QFileInfo fi(q->m_executable);
    QString fileName = '"' + fi.absoluteFilePath() + '"';

    if (m_gdbProc.state() != QProcess::NotRunning) {
hjk's avatar
hjk committed
1538
        debugMessage("GDB IS ALREADY RUNNING!");
con's avatar
con committed
1539
1540
1541
        return false;
    }

1542
1543
1544
1545
1546
1547
1548
1549
1550
    if (!m_outputCollector.listen()) {
        QMessageBox::critical(q->mainWindow(), tr("Debugger Startup Failure"),
                              tr("Cannot set up communication with child process: %1")
                              .arg(m_outputCollector.errorString()));
        return false;
    }

    gdbArgs.prepend(QLatin1String("--tty=") + m_outputCollector.serverName());

con's avatar
con committed
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
    //gdbArgs.prepend(QLatin1String("--quiet"));
    gdbArgs.prepend(QLatin1String("mi"));
    gdbArgs.prepend(QLatin1String("-i"));

    if (!q->m_workingDir.isEmpty())
        m_gdbProc.setWorkingDirectory(q->m_workingDir);
    if (!q->m_environment.isEmpty())
        m_gdbProc.setEnvironment(q->m_environment);

    #if 0
1561
    qDebug() << "Command: " << q->settings()->m_gdbCmd;
con's avatar
con committed
1562
    qDebug() << "WorkingDirectory: " << m_gdbProc.workingDirectory();
1563
    qDebug() << "ScriptFile: " << q->settings()->m_scriptFile;
con's avatar
con committed
1564
1565
1566
1567
1568
1569
    qDebug() << "Environment: " << m_gdbProc.environment();
    qDebug() << "Arguments: " << gdbArgs;
    qDebug() << "BuildDir: " << q->m_buildDir;
    qDebug() << "ExeFile: " << q->m_executable;
    #endif

1570
    q->showStatusMessage(tr("Starting Debugger: ") + q->settings()->m_gdbCmd + ' ' + gdbArgs.join(" "));
1571
    m_gdbProc.start(q->settings()->m_gdbCmd, gdbArgs);
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1572
    if (!m_gdbProc.waitForStarted()) {
1573
1574
        QMessageBox::critical(q->mainWindow(), tr("Debugger Startup Failure"),
                              tr("Cannot start debugger: %1").arg(m_gdbProc.errorString()));
1575
        m_outputCollector.shutdown();
con's avatar
con committed
1576
        return false;
1577
    }
con's avatar
con committed
1578

1579
    q->showStatusMessage(tr("Gdb Running"));
con's avatar
con committed
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595

    sendCommand("show version", GdbShowVersion);
    //sendCommand("-enable-timings");
    sendCommand("set print static-members off"); // Seemingly doesn't work.
    //sendCommand("define hook-stop\n-thread-list-ids\n-stack-list-frames\nend");
    //sendCommand("define hook-stop\nprint 4\nend");
    //sendCommand("define hookpost-stop\nprint 5\nend");
    //sendCommand("define hook-call\nprint 6\nend");
    //sendCommand("define hookpost-call\nprint 7\nend");
    //sendCommand("set print object on"); // works with CLI, but not MI
    //sendCommand("set step-mode on");  // we can't work with that yes
    //sendCommand("set exec-done-display on");
    //sendCommand("set print pretty on");
    //sendCommand("set confirm off");
    //sendCommand("set pagination off");
    sendCommand("set breakpoint pending on", BreakEnablePending);
1596
    sendCommand("set print elements 10000");
1597
    sendCommand("-data-list-register-names", RegisterListNames);
con's avatar
con committed
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622

    // one of the following is needed to prevent crashes in gdb on code like:
    //  template <class T> T foo() { return T(0); }
    //  int main() { return foo<int>(); }
    //  (gdb) call 'int foo<int>'()
    //  /build/buildd/gdb-6.8/gdb/valops.c:2069: internal-error:
    sendCommand("set overload-resolution off");
    //sendCommand("set demangle-style none");

    // From the docs:
    //  Stop means reenter debugger if this signal happens (implies print).
    //  Print means print a message if this signal happens.
    //  Pass means let program see this signal;
    //  otherwise program doesn't know.
    //  Pass and Stop may be combined.
    // We need "print" as otherwise we would get no feedback whatsoever
    // Custom Dumper crashs which happen regularily for when accessing
    // uninitialized variables.
    sendCommand("handle SIGSEGV nopass stop print");

    // This is useful to kill the inferior whenever gdb dies.
    //sendCommand("handle SIGTERM pass nostop print");

    sendCommand("set unwindonsignal on");
    sendCommand("pwd", GdbQueryPwd);
1623
1624
    sendCommand("set width 0");
    sendCommand("set height 0");
con's avatar
con committed
1625
1626
1627
1628

    #ifdef Q_OS_MAC
    sendCommand("-gdb-set inferior-auto-start-cfm off");
    sendCommand("-gdb-set sharedLibrary load-rules "
con's avatar
con committed
1629
1630
1631
1632
1633
1634
1635
1636
            "dyld \".*libSystem.*\" all "
            "dyld \".*libauto.*\" all "
            "dyld \".*AppKit.*\" all "
            "dyld \".*PBGDBIntrospectionSupport.*\" all "
            "dyld \".*Foundation.*\" all "
            "dyld \".*CFDataFormatters.*\" all "
            "dyld \".*libobjc.*\" all "
            "dyld \".*CarbonDataFormatters.*\" all");
con's avatar
con committed
1637
    #endif
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653

    QString scriptFileName = q->settings()->m_scriptFile;
    if (!scriptFileName.isEmpty()) {
        QFile scriptFile(scriptFileName);
        if (scriptFile.open(QIODevice::ReadOnly)) {
            sendCommand("source " + scriptFileName);
        } else {
            QMessageBox::warning(q->mainWindow(),
            tr("Cannot find debugger initialization script"),
            tr("The debugger settings point to a script file at '%1' "
               "which is not accessible. If a script file is not needed, "
               "consider clearing that entry to avoid this warning. "
              ).arg(scriptFileName));
        }
    }

1654
    if (q->startMode() == DebuggerManager::AttachExternal) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1655
        sendCommand("attach " + QString::number(q->m_attachedPID), GdbAttached);
1656
    } else {
1657
        // StartInternal or StartExternal
1658
1659
1660
1661
1662
        sendCommand("-file-exec-and-symbols " + fileName, GdbFileExecAndSymbols);
        //sendCommand("file " + fileName, GdbFileExecAndSymbols);
        #ifdef Q_OS_MAC
        sendCommand("sharedlibrary apply-load-rules all");
        #endif
1663
1664
        if (!q->m_processArgs.isEmpty())
            sendCommand("-exec-arguments " + q->m_processArgs.join(" "));
hjk's avatar
hjk committed
1665
        #ifndef Q_OS_MAC
1666
        sendCommand("set auto-solib-add off");
hjk's avatar
hjk committed
1667
        #endif
1668
        sendCommand("info target", GdbStart);
1669
1670
    }

con's avatar
con committed
1671
    // set all to "pending"
1672
    if (q->startMode() == DebuggerManager::AttachExternal)
con's avatar
con committed
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
        qq->breakHandler()->removeAllBreakpoints();
    else
        qq->breakHandler()->setAllPending();

    return true;
}

void GdbEngine::continueInferior()
{
    q->resetLocation();
    setTokenBarrier();
1684
    qq->notifyInferiorRunningRequested();
con's avatar
con committed
1685
1686
1687
    sendCommand("-exec-continue", GdbExecContinue);
}

1688
void GdbEngine::handleStart(const GdbResultRecord &response)
1689
1690
{
    if (response.resultClass == GdbResultDone) {
1691
1692
1693
        // [some leading stdout here]
        // stdout:&"        Entry point: 0x80831f0  0x08048134 - 0x08048147 is .interp\n"
        // [some trailing stdout here]
1694
        QString msg = response.data.findChild("consolestreamoutput").data();
1695
        QRegExp needle("\\bEntry point: (0x[0-9a-f]+)\\b");
1696
        if (needle.indexIn(msg) != -1) {
hjk's avatar
hjk committed
1697
            //debugMessage("STREAM: " + msg + " " + needle.cap(1));
1698
            sendCommand("tbreak *" + needle.cap(1));
1699
            m_waitingForFirstBreakpointToBeHit = true;
1700
            qq->notifyInferiorRunningRequested();
1701
            sendCommand("-exec-run");</