gdbengine.cpp 174 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2
3
4
**
** This file is part of Qt Creator
**
con's avatar
con committed
5
** Copyright (c) 2011 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
**
con's avatar
con committed
9
** No Commercial Usage
10
**
con's avatar
con committed
11
12
13
14
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
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
**
con's avatar
con committed
25
26
27
28
29
30
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
con's avatar
con committed
31
**
32
**************************************************************************/
con's avatar
con committed
33

34
35
#define QT_NO_CAST_FROM_ASCII

con's avatar
con committed
36
#include "gdbengine.h"
37

Friedemann Kleint's avatar
Friedemann Kleint committed
38
39
#include "debuggerstartparameters.h"
#include "disassemblerlines.h"
40
41
#include "attachgdbadapter.h"
#include "coregdbadapter.h"
ck's avatar
ck committed
42
#include "localplaingdbadapter.h"
43
#include "termgdbadapter.h"
ck's avatar
ck committed
44
45
#include "remotegdbserveradapter.h"
#include "remoteplaingdbadapter.h"
46
#include "trkgdbadapter.h"
47
#include "codagdbadapter.h"
con's avatar
con committed
48

49
#include "debuggeractions.h"
con's avatar
con committed
50
#include "debuggerconstants.h"
51
52
53
#include "debuggercore.h"
#include "debuggerplugin.h"
#include "debuggerrunner.h"
54
#include "debuggerstringutils.h"
55
#include "debuggertooltipmanager.h"
56
#include "disassembleragent.h"
con's avatar
con committed
57
#include "gdbmi.h"
58
59
60
#include "gdboptionspage.h"
#include "memoryagent.h"
#include "watchutils.h"
con's avatar
con committed
61
62
63
64

#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
65
#include "snapshothandler.h"
66
#include "sourcefileshandler.h"
con's avatar
con committed
67
#include "stackhandler.h"
hjk's avatar
hjk committed
68
#include "threadshandler.h"
con's avatar
con committed
69
#include "watchhandler.h"
70

71
72
73
#ifdef Q_OS_WIN
#    include "dbgwinutils.h"
#endif
74
#include "logwindow.h"
con's avatar
con committed
75

76
#include <coreplugin/icore.h>
77
#include <coreplugin/ifile.h>
78
#include <projectexplorer/abi.h>
79
#include <projectexplorer/projectexplorerconstants.h>
80
81
#include <texteditor/itexteditor.h>
#include <utils/qtcassert.h>
hjk's avatar
hjk committed
82

83
#include <QtCore/QCoreApplication>
con's avatar
con committed
84
85
86
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
87
#include <QtCore/QMetaObject>
con's avatar
con committed
88
89
#include <QtCore/QTime>
#include <QtCore/QTimer>
90
#include <QtCore/QTemporaryFile>
91
#include <QtCore/QTextStream>
con's avatar
con committed
92
93

#include <QtGui/QAction>
94
#include <QtGui/QDialogButtonBox>
con's avatar
con committed
95
96
97
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
98
#include <QtGui/QPushButton>
con's avatar
con committed
99

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
100
#ifdef Q_OS_UNIX
con's avatar
con committed
101
102
103
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
104
#include <ctype.h>
con's avatar
con committed
105

hjk's avatar
hjk committed
106
107
using namespace ProjectExplorer;

108
109
namespace Debugger {
namespace Internal {
con's avatar
con committed
110

111
112
113
class GdbToolTipContext : public DebuggerToolTipContext
{
public:
114
115
    GdbToolTipContext(const DebuggerToolTipContext &c) :
        DebuggerToolTipContext(c), editor(0) {}
116
117
118

    QPoint mousePosition;
    QString expression;
119
    Core::IEditor *editor;
120
121
};

122
123
static const char winPythonVersionC[] = "python2.5";

124
125
126
enum { debugPending = 0 };

#define PENDING_DEBUG(s) do { if (debugPending) qDebug() << s; } while (0)
con's avatar
con committed
127

128
129
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

130
QByteArray GdbEngine::tooltipIName(const QString &exp)
131
{
132
    return "tooltip." + exp.toLatin1().toHex();
133
134
}

hjk's avatar
hjk committed
135
static bool stateAcceptsGdbCommands(DebuggerState state)
hjk's avatar
hjk committed
136
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
137
    switch (state) {
hjk's avatar
hjk committed
138
    case EngineSetupRequested:
139
140
    case EngineSetupOk:
    case EngineSetupFailed:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
141
    case InferiorUnrunnable:
hjk's avatar
hjk committed
142
    case InferiorSetupRequested:
hjk's avatar
hjk committed
143
    case InferiorSetupFailed:
hjk's avatar
hjk committed
144
145
146
147
148
149
150
151
    case EngineRunRequested:
    case InferiorRunRequested:
    case InferiorRunOk:
    case InferiorStopRequested:
    case InferiorStopOk:
    case InferiorShutdownRequested:
    case EngineShutdownRequested:
    case InferiorShutdownOk:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
152
153
154
155
    case InferiorShutdownFailed:
        return true;
    case DebuggerNotReady:
    case InferiorStopFailed:
156
    case InferiorSetupOk:
hjk's avatar
hjk committed
157
    case EngineRunFailed:
hjk's avatar
hjk committed
158
    case InferiorExitOk:
hjk's avatar
hjk committed
159
160
161
162
    case InferiorRunFailed:
    case EngineShutdownOk:
    case EngineShutdownFailed:
    case DebuggerFinished:
163
        return false;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
164
165
166
    }
    return false;
}
hjk's avatar
hjk committed
167

con's avatar
con committed
168
169
170
171
172
173
static int &currentToken()
{
    static int token = 0;
    return token;
}

hjk's avatar
hjk committed
174
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
175
{
hjk's avatar
hjk committed
176
    GdbMi output = response.data.findChild("consolestreamoutput");
177
178
179
180
181
182
183
184
185
186
    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
187
188
189
190
191
192
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

193
194
195
GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters,
        DebuggerEngine *masterEngine)
  : DebuggerEngine(startParameters, masterEngine)
con's avatar
con committed
196
{
197
    setObjectName(_("GdbEngine"));
198

199
    m_busy = false;
200
201
202
203
204
205
206
207
208
209
210
211
212
213
    m_gdbAdapter = 0;
    m_debuggingHelperState = DebuggingHelperUninitialized;
    m_gdbVersion = 100;
    m_gdbBuildVersion = -1;
    m_isMacGdb = false;
    m_hasPython = false;
    m_registerNamesListed = false;
    m_hasInferiorThreadList = false;
    m_sourcesListUpdating = false;
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
    m_pendingWatchRequests = 0;
    m_pendingBreakpointRequests = 0;
    m_commandsDoneCallback = 0;
214
    m_stackNeeded = false;
215
    m_preparedForQmlBreak = false;
216
217
    m_disassembleUsesComma = false;

218
219
    invalidateSourcesList();

ck's avatar
ck committed
220
    m_gdbAdapter = createAdapter();
221

222
223
224
    m_commandTimer.setSingleShot(true);
    connect(&m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));

hjk's avatar
hjk committed
225
    connect(debuggerCore()->action(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
226
            SLOT(reloadLocals()));
hjk's avatar
hjk committed
227
    connect(debuggerCore()->action(SortStructMembers), SIGNAL(valueChanged(QVariant)),
228
            SLOT(reloadLocals()));
229
230
231
232
    connect(debuggerCore()->action(ShowStdNamespace), SIGNAL(valueChanged(QVariant)),
            SLOT(reloadLocals()));
    connect(debuggerCore()->action(ShowQtNamespace), SIGNAL(valueChanged(QVariant)),
            SLOT(reloadLocals()));
hjk's avatar
hjk committed
233
    connect(debuggerCore()->action(CreateFullBacktrace), SIGNAL(triggered()),
234
            SLOT(createFullBacktrace()));
235
}
236

237
238
DebuggerStartMode GdbEngine::startMode() const
{
239
    return startParameters().startMode;
con's avatar
con committed
240
241
}

ck's avatar
ck committed
242
243
244
245
246
AbstractGdbProcess *GdbEngine::gdbProc() const
{
    return m_gdbAdapter->gdbProc();
}

con's avatar
con committed
247
248
GdbEngine::~GdbEngine()
{
249
    // Prevent sending error messages afterwards.
ck's avatar
ck committed
250
251
    if (m_gdbAdapter)
        disconnect(gdbProc(), 0, this, 0);
252
    delete m_gdbAdapter;
253
    m_gdbAdapter = 0;
hjk's avatar
hjk committed
254
255
}

256
QString GdbEngine::errorMessage(QProcess::ProcessError error)
con's avatar
con committed
257
258
259
{
    switch (error) {
        case QProcess::FailedToStart:
260
            return tr("The Gdb process failed to start. Either the "
con's avatar
con committed
261
                "invoked program '%1' is missing, or you may have insufficient "
262
263
                "permissions to invoke the program.\n%2")
                .arg(m_gdb, gdbProc()->errorString());
con's avatar
con committed
264
        case QProcess::Crashed:
265
            return tr("The Gdb process crashed some time after starting "
con's avatar
con committed
266
267
                "successfully.");
        case QProcess::Timedout:
268
            return tr("The last waitFor...() function timed out. "
con's avatar
con committed
269
270
271
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
        case QProcess::WriteError:
272
            return tr("An error occurred when attempting to write "
con's avatar
con committed
273
274
275
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
        case QProcess::ReadError:
276
            return tr("An error occurred when attempting to read from "
con's avatar
con committed
277
278
                "the Gdb process. For example, the process may not be running.");
        default:
279
            return tr("An unknown error in the Gdb process occurred. ");
con's avatar
con committed
280
281
282
283
284
285
286
    }
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
287
    Q_UNUSED(to)
con's avatar
con committed
288
289
290
291
292
293
294
295
296
297
298
    // 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

299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
// Parse "~:gdb: unknown target exception 0xc0000139 at 0x77bef04e\n"
// and return an exception message
static inline QString msgWinException(const QByteArray &data)
{
    const int exCodePos = data.indexOf("0x");
    const int blankPos = exCodePos != -1 ? data.indexOf(' ', exCodePos + 1) : -1;
    const int addressPos = blankPos != -1 ? data.indexOf("0x", blankPos + 1) : -1;
    if (addressPos < 0)
        return GdbEngine::tr("An exception was triggered.");
    const unsigned exCode = data.mid(exCodePos, blankPos - exCodePos).toUInt(0, 0);
    const quint64 address = data.mid(addressPos).trimmed().toULongLong(0, 0);
    QString rc;
    QTextStream str(&rc);
    str << GdbEngine::tr("An exception was triggered: ");
#ifdef Q_OS_WIN
    formatWindowsException(exCode, address, 0, 0, 0, str);
#else
    Q_UNUSED(exCode)
    Q_UNUSED(address)
#endif
    str << '.';
    return rc;
}

323
324
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
325
326
    QString msg = m_outputCodec->toUnicode(data.constData(), data.length(),
        &m_outputCodecState);
327
    showMessage(msg, AppOutput);
328
329
}

330
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
331
{
332
    showMessage(QString::fromLocal8Bit(buff, buff.length()), LogOutput);
con's avatar
con committed
333
334

#if 0
335
    static QTime lastTime;
con's avatar
con committed
336
337
    qDebug() // << "#### start response handling #### "
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
338
339
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
340
        << "size:" << buff.size();
341
    lastTime = QTime::currentTime();
con's avatar
con committed
342
#else
343
    //qDebug() << "buf:" << buff;
con's avatar
con committed
344
#endif
345
346
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
347

348
349
350
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
351

352
353
354
355
    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
356
            break;
357
358
359
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
360
        //qDebug() << "found token" << token;
361
    }
con's avatar
con committed
362

hjk's avatar
hjk committed
363
    // next char decides kind of response
364
365
366
367
368
369
370
371
372
373
374
375
376
377
    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
378

hjk's avatar
hjk committed
379
            GdbMi result;
380
381
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
382
                if (*from != ',') {
383
384
                    // happens on archer where we get
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb)
hjk's avatar
hjk committed
385
                    result.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
386
387
388
389
390
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
hjk's avatar
hjk committed
391
392
393
                    //qDebug() << "parsed result:" << data.toString();
                    result.m_children += data;
                    result.m_type = GdbMi::Tuple;
con's avatar
con committed
394
395
                }
            }
396
            if (asyncClass == "stopped") {
397
                handleStopResponse(result);
398
399
                m_pendingLogStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();
400
401
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
402
403
404
405
            } 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",
406
                // symbols-loaded="0"
hjk's avatar
hjk committed
407
                QByteArray id = result.findChild("id").data();
408
                if (!id.isEmpty())
409
                    showStatusMessage(tr("Library %1 loaded").arg(_(id)), 1000);
410
                progressPing();
411
                invalidateSourcesList();
hjk's avatar
hjk committed
412
413
414
415
            } 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
416
                QByteArray id = result.findChild("id").data();
417
                progressPing();
418
                showStatusMessage(tr("Library %1 unloaded").arg(_(id)), 1000);
419
                invalidateSourcesList();
420
421
            } else if (asyncClass == "thread-group-added") {
                // 7.1-symbianelf has "{id="i1"}"
422
423
424
            } else if (asyncClass == "thread-group-created"
                    || asyncClass == "thread-group-started") {
                // Archer had only "{id="28902"}" at some point of 6.8.x.
hjk's avatar
hjk committed
425
426
                // *-started seems to be standard in 7.1, but in early
                // 7.0.x, there was a *-created instead.
427
                progressPing();
ck's avatar
ck committed
428
                // 7.1.50 has thread-group-started,id="i1",pid="3529"
hjk's avatar
hjk committed
429
                QByteArray id = result.findChild("id").data();
430
                showStatusMessage(tr("Thread group %1 created").arg(_(id)), 1000);
ck's avatar
ck committed
431
432
433
434
435
436
437
                int pid = id.toInt();
                if (!pid) {
                    id = result.findChild("pid").data();
                    pid = id.toInt();
                }
                if (pid)
                    notifyInferiorPid(pid);
438
            } else if (asyncClass == "thread-created") {
439
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
440
                QByteArray id = result.findChild("id").data();
441
                showStatusMessage(tr("Thread %1 created").arg(_(id)), 1000);
442
            } else if (asyncClass == "thread-group-exited") {
443
                // Archer has "{id="28902"}"
hjk's avatar
hjk committed
444
                QByteArray id = result.findChild("id").data();
445
                showStatusMessage(tr("Thread group %1 exited").arg(_(id)), 1000);
446
            } else if (asyncClass == "thread-exited") {
447
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
448
449
                QByteArray id = result.findChild("id").data();
                QByteArray groupid = result.findChild("group-id").data();
450
                showStatusMessage(tr("Thread %1 in group %2 exited")
hjk's avatar
hjk committed
451
                    .arg(_(id)).arg(_(groupid)), 1000);
hjk's avatar
hjk committed
452
            } else if (asyncClass == "thread-selected") {
hjk's avatar
hjk committed
453
                QByteArray id = result.findChild("id").data();
454
                showStatusMessage(tr("Thread %1 selected").arg(_(id)), 1000);
455
                //"{id="2"}"
456
457
            } else if (m_isMacGdb && asyncClass == "shlibs-updated") {
                // Apple's gdb announces updated libs.
458
                invalidateSourcesList();
459
460
            } else if (m_isMacGdb && asyncClass == "shlibs-added") {
                // Apple's gdb announces added libs.
461
462
463
464
465
                // {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=""}}
466
                invalidateSourcesList();
467
468
469
470
471
            } else if (m_isMacGdb && asyncClass == "resolve-pending-breakpoint") {
                // Apple's gdb announces resolved breakpoints.
                // new_bp="1",pended_bp="1",new_expr="\"gdbengine.cpp\":1584",
                // bkpt={number="1",type="breakpoint",disp="keep",enabled="y",
                // addr="0x0000000115cc3ddf",func="foo()",file="../foo.cpp",
472
                // line="1584",shlib="/../libFoo_debug.dylib",times="0"}
473
474
                const GdbMi bkpt = result.findChild("bkpt");
                const int number = bkpt.findChild("number").data().toInt();
475
476
477
                if (!isQmlStepBreakpoint1(number) && isQmlStepBreakpoint2(number)) {
                    BreakpointId id = breakHandler()->findBreakpointByNumber(number);
                    updateBreakpointDataFromOutput(id, bkpt);
hjk's avatar
hjk committed
478
479
480
                    BreakpointResponse response = breakHandler()->response(id);
                    if (response.correctedLineNumber == 0)
                        attemptAdjustBreakpointLocation(id);
481
                }
482
            } else {
483
                qDebug() << "IGNORED ASYNC OUTPUT"
hjk's avatar
hjk committed
484
                    << asyncClass << result.toString();
485
            }
486
487
            break;
        }
488

489
        case '~': {
490
491
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
492
493

            // Parse pid from noise.
494
            if (!inferiorPid()) {
495
496
497
498
                // 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
499
500
501
                // Mac: [Switching to process 9294 local thread 0x2e03] or
                // [Switching to process 31773]
                static QRegExp re3(_("Switching to process ([0-9]+)"));
502
503
504
505
506
                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));
507
508
                else if (re3.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re3.cap(1));
509
            }
510
511

            // Show some messages to give the impression something happens.
512
            if (data.startsWith("Reading symbols from ")) {
513
                showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
514
                progressPing();
515
                invalidateSourcesList();
516
517
518
            } else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
                if (data.endsWith('\n'))
                    data.chop(1);
519
                progressPing();
520
                showStatusMessage(_(data), 1000);
521
522
523
524
525
526
            } else if (data.startsWith("gdb: unknown target exception 0x")) {
                // [Windows, most likely some DLL/Entry point not found]:
                // "gdb: unknown target exception 0xc0000139 at 0x77bef04e"
                // This may be fatal and cause the target to exit later
                m_lastWinException = msgWinException(data);
                showMessage(m_lastWinException, LogMisc);
527
            }
528
529
530
531
532
533
534
535
536

            if (data.startsWith("QMLBP:")) {
                int pos1 = 6;
                int pos2 = data.indexOf(' ', pos1);
                m_qmlBreakpointNumbers[2] = data.mid(pos1, pos2 - pos1).toInt();
                //qDebug() << "FOUND QMLBP: " << m_qmlBreakpointNumbers[2];
                //qDebug() << "CURRENT: " << m_qmlBreakpointNumbers;
            }

537
538
            break;
        }
539

540
        case '@': {
541
            readDebugeeOutput(GdbMi::parseCString(from, to));
542
            break;
con's avatar
con committed
543
544
        }

545
546
547
548
549
550
        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:"))
551
                showMessage(_(data.mid(9)), AppStuff); // Cut "warning: "
con's avatar
con committed
552
553
554
            break;
        }

555
        case '^': {
hjk's avatar
hjk committed
556
            GdbResponse response;
con's avatar
con committed
557

hjk's avatar
hjk committed
558
            response.token = token;
con's avatar
con committed
559

560
561
562
            for (inner = from; inner != to; ++inner)
                if (*inner < 'a' || *inner > 'z')
                    break;
con's avatar
con committed
563

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
564
            QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
565
            if (resultClass == "done") {
hjk's avatar
hjk committed
566
                response.resultClass = GdbResultDone;
567
            } else if (resultClass == "running") {
hjk's avatar
hjk committed
568
                response.resultClass = GdbResultRunning;
569
            } else if (resultClass == "connected") {
hjk's avatar
hjk committed
570
                response.resultClass = GdbResultConnected;
571
            } else if (resultClass == "error") {
hjk's avatar
hjk committed
572
                response.resultClass = GdbResultError;
573
            } else if (resultClass == "exit") {
hjk's avatar
hjk committed
574
                response.resultClass = GdbResultExit;
575
            } else {
hjk's avatar
hjk committed
576
                response.resultClass = GdbResultUnknown;
577
            }
con's avatar
con committed
578

579
580
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
581
582
                if (*from == ',') {
                    ++from;
hjk's avatar
hjk committed
583
584
585
                    response.data.parseTuple_helper(from, to);
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
hjk's avatar
hjk committed
586
                } else {
587
                    // Archer has this.
hjk's avatar
hjk committed
588
589
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
con's avatar
con committed
590
591
                }
            }
592
593
594

            //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
            //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
hjk's avatar
hjk committed
595
            response.data.setStreamOutput("logstreamoutput",
596
                m_pendingLogStreamOutput);
hjk's avatar
hjk committed
597
            response.data.setStreamOutput("consolestreamoutput",
598
599
600
601
                m_pendingConsoleStreamOutput);
            m_pendingLogStreamOutput.clear();
            m_pendingConsoleStreamOutput.clear();

602
            handleResultRecord(&response);
603
604
605
606
607
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
608
609
610
611
612
613
        }
    }
}

void GdbEngine::readGdbStandardError()
{
ck's avatar
ck committed
614
    QByteArray err = gdbProc()->readAllStandardError();
615
    showMessage(_("UNEXPECTED GDB STDERR: " + err));
616
617
    if (err == "Undefined command: \"bb\".  Try \"help\".\n")
        return;
618
619
    if (err.startsWith("BFD: reopening"))
        return;
620
    qWarning() << "Unexpected gdb stderr:" << err;
con's avatar
con committed
621
622
623
624
}

void GdbEngine::readGdbStandardOutput()
{
625
    m_commandTimer.start(); // Restart timer.
626

627
628
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
629

ck's avatar
ck committed
630
    m_inbuffer.append(gdbProc()->readAllStandardOutput());
con's avatar
con committed
631

632
    // This can trigger when a dialog starts a nested event loop.
633
634
635
    if (m_busy)
        return;

636
637
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
638
        int end = m_inbuffer.indexOf('\n', scan);
639
640
641
642
643
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
644
        scan = newstart;
645
646
        if (end == start)
            continue;
Tobias Hunger's avatar
Tobias Hunger committed
647
#        if defined(Q_OS_WIN)
648
649
650
651
652
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
Tobias Hunger's avatar
Tobias Hunger committed
653
#        endif
654
        m_busy = true;
655
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
656
        m_busy = false;
con's avatar
con committed
657
    }
658
    m_inbuffer.clear();
con's avatar
con committed
659
660
661
662
}

void GdbEngine::interruptInferior()
{
hjk's avatar
hjk committed
663
    QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state(); return);
664
665
666
667
668
669
670
671

    if (debuggerCore()->boolSetting(TargetAsync)) {
        postCommand("-exec-interrupt");
    } else {
        showStatusMessage(tr("Stop requested..."), 5000);
        showMessage(_("TRYING TO INTERRUPT INFERIOR"));
        m_gdbAdapter->interruptInferior();
    }
con's avatar
con committed
672
673
}

674
675
void GdbEngine::interruptInferiorTemporarily()
{
676
    foreach (const GdbCommand &cmd, m_commandsToRunOnTemporaryBreak) {
677
        if (cmd.flags & LosesChild) {
hjk's avatar
hjk committed
678
            notifyInferiorIll();
679
            return;
680
        }
681
    }
682
    requestInterruptInferior();
683
684
}

con's avatar
con committed
685
686
void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
687
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
688
    if (pid == 0) {
689
        showMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
690
691
        return;
    }
692
    if (pid == inferiorPid())
con's avatar
con committed
693
        return;
694

695
696
    showMessage(_("FOUND PID %1").arg(pid));
    notifyInferiorPid(pid);
con's avatar
con committed
697
698
}

699
void GdbEngine::postCommand(const QByteArray &command, AdapterCallback callback,
hjk's avatar
hjk committed
700
                            const char *callbackName, const QVariant &cookie)
701
702
703
704
{
    postCommand(command, NoFlags, callback, callbackName, cookie);
}

705
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
706
707
                            AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
hjk's avatar
hjk committed
708
709
710
{
    GdbCommand cmd;
    cmd.command = command;
711
    cmd.flags = flags;
hjk's avatar
hjk committed
712
713
714
715
716
717
    cmd.adapterCallback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

718
void GdbEngine::postCommand(const QByteArray &command, GdbCommandCallback callback,
719
720
                            const char *callbackName, const QVariant &cookie)
{
721
    postCommand(command, NoFlags, callback, callbackName, cookie);
722
723
}

724
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
725
726
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
hjk's avatar
hjk committed
727
728
729
730
731
732
733
734
735
736
737
{
    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
738
{
hjk's avatar
hjk committed
739
    if (!stateAcceptsGdbCommands(state())) {
740
        PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: " + cmd.command));
741
        showMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
742
            .arg(_(cmd.command)).arg(state()));
con's avatar
con committed
743
744
745
        return;
    }

746
747
    if (cmd.flags & RebuildWatchModel) {
        ++m_pendingWatchRequests;
748
        PENDING_DEBUG("   WATCH MODEL:" << cmd.command << "=>" << cmd.callbackName
749
                      << "INCREMENTS PENDING TO" << m_pendingWatchRequests);
750
751
752
753
    } else if (cmd.flags & RebuildBreakpointModel) {
        ++m_pendingBreakpointRequests;
        PENDING_DEBUG("   BRWAKPOINT MODEL:" << cmd.command << "=>" << cmd.callbackName
                      << "INCREMENTS PENDING TO" << m_pendingBreakpointRequests);
con's avatar
con committed
754
    } else {
755
        PENDING_DEBUG("   OTHER (IN):" << cmd.command << "=>" << cmd.callbackName
756
757
                      << "LEAVES PENDING WATCH AT" << m_pendingWatchRequests
                      << "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
con's avatar
con committed
758
759
    }

760
761
762
763
764
765
    // FIXME: clean up logic below
    if (cmd.flags & Immediate) {
        // This should always be sent.
        flushCommand(cmd);
    } else if ((cmd.flags & NeedsStop)
            || !m_commandsToRunOnTemporaryBreak.isEmpty()) {
hjk's avatar
hjk committed
766
767
768
        if (state() == InferiorStopOk || state() == InferiorUnrunnable
            || state() == InferiorSetupRequested || state() == EngineSetupOk
            || state() == InferiorShutdownRequested) {
hjk's avatar
hjk committed
769
770
771
772
            // Can be safely sent now.
            flushCommand(cmd);
        } else {
            // Queue the commands that we cannot send at once.
773
            showMessage(_("QUEUING COMMAND " + cmd.command));
hjk's avatar
hjk committed
774
            m_commandsToRunOnTemporaryBreak.append(cmd);
hjk's avatar
hjk committed
775
776
777
778
            if (state() == InferiorStopRequested) {
                if (cmd.flags & LosesChild) {
                    notifyInferiorIll();
                }
779
                showMessage(_("CHILD ALREADY BEING INTERRUPTED. STILL HOPING."));
780
781
                // Calling shutdown() here breaks all situations where two
                // NeedsStop commands are issued in quick succession.
hjk's avatar
hjk committed
782
            } else if (state() == InferiorRunOk) {
783
                showStatusMessage(tr("Stopping temporarily"), 1000);
784
                interruptInferiorTemporarily();
785
            } else {
hjk's avatar
hjk committed
786
787
                qDebug() << "ATTEMPTING TO QUEUE COMMAND "
                    << cmd.command << "IN INAPPROPRIATE STATE" << state();
788
            }
hjk's avatar
hjk committed
789
        }
hjk's avatar
hjk committed
790
    } else if (!cmd.command.isEmpty()) {
791
        flushCommand(cmd);
con's avatar
con committed
792
793
794
    }
}

795
796
void GdbEngine::flushQueuedCommands()
{
797
    showStatusMessage(tr("Processing queued commands"), 1000);
798
799
    while (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
        GdbCommand cmd = m_commandsToRunOnTemporaryBreak.takeFirst();
800
        showMessage(_("RUNNING QUEUED COMMAND " + cmd.command + ' '
801
            + cmd.callbackName));
802
803
804
805
        flushCommand(cmd);
    }
}

hjk's avatar
hjk committed
806
void GdbEngine::flushCommand(const GdbCommand &cmd0)
807
{
808
809
810
    if (!stateAcceptsGdbCommands(state())) {
        showMessage(_(cmd0.command), LogInput);
        showMessage(_("GDB PROCESS ACCEPTS NO CMD IN STATE %1 ").arg(state()));
811
812
813
        return;
    }

814
    QTC_ASSERT(gdbProc()->state() == QProcess::Running, return;)
815

816
    ++currentToken();
817
    GdbCommand cmd = cmd0;
818
    cmd.postTime = QTime::currentTime();
819
    m_cookieForToken[currentToken()] = cmd;
820
821
    if (cmd.flags & ConsoleCommand)
        cmd.command = "-interpreter-exec console \"" + cmd.command + '"';
822
    cmd.command = QByteArray::number(currentToken()) + cmd.command;
823
    showMessage(_(cmd.command), LogInput);
824

825
    m_gdbAdapter->write(cmd.command + "\r\n");
826

827
    // Start Watchdog.
828
829
    if (m_commandTimer.interval() <= 20000)
        m_commandTimer.setInterval(commandTimeoutTime());
830
831
832
833
    // The process can die for external reason between the "-gdb-exit" was
    // sent and a response could be retrieved. We don't want the watchdog
    // to bark in that case since the only possible outcome is a dead
    // process anyway.
834
    if (!cmd.command.endsWith("-gdb-exit"))
835
        m_commandTimer.start();
836

hjk's avatar
hjk committed
837
    //if (cmd.flags & LosesChild)
hjk's avatar
hjk committed
838
    //    notifyInferiorIll();
839
840
}

841
842
int GdbEngine::commandTimeoutTime() const
{
hjk's avatar
hjk committed
843
    int time = debuggerCore()->action(GdbWatchdogTimeout)->value().toInt();
844
    return 1000 * qMax(40, time);
845
846
}

847
848
849
850
void GdbEngine::commandTimeout()
{
    QList<int> keys = m_cookieForToken.keys();
    qSort(keys);
851
    bool killIt = false;
852
    foreach (int key, keys) {
853
854
855
        const GdbCommand &cmd = m_cookieForToken.value(key);
        if (!(cmd.flags & NonCriticalResponse))
            killIt = true;
856
857
        QByteArray msg = QByteArray::number(key);
        msg += ": " + cmd.command + " => ";
858
        msg += cmd.callbackName ? cmd.callbackName : "<unnamed callback>";
859
        showMessage(_(msg));
860
    }
861
    if (killIt) {
862
        showMessage(_("TIMED OUT WAITING FOR GDB REPLY. COMMANDS STILL IN PROGRESS:"));
863
864
        int timeOut = m_commandTimer.interval();
        //m_commandTimer.stop();
865
        const QString msg = tr("The gdb process has not responded "
con's avatar
con committed
866
            "to a command within %1 seconds. This could mean it is stuck "