gdbengine.cpp 153 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2
3
4
**
** This file is part of Qt Creator
**
5
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
9
** Commercial Usage
10
**
11
12
13
14
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
15
**
16
** GNU Lesser General Public License Usage
17
**
18
19
20
21
22
23
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
**
25
** If you are unsure which license is appropriate for your use, please
hjk's avatar
hjk committed
26
** contact the sales department at http://qt.nokia.com/contact.
con's avatar
con committed
27
**
28
**************************************************************************/
con's avatar
con committed
29

30
31
#define QT_NO_CAST_FROM_ASCII

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

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

43
#include "watchutils.h"
44
#include "debuggeractions.h"
45
#include "debuggeragents.h"
con's avatar
con committed
46
47
#include "debuggerconstants.h"
#include "debuggermanager.h"
48
#include "debuggertooltip.h"
49
#include "debuggerstringutils.h"
con's avatar
con committed
50
51
52
53
54
55
56
#include "gdbmi.h"

#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
#include "stackhandler.h"
#include "watchhandler.h"
57
#include "sourcefileswindow.h"
con's avatar
con committed
58

59
#include "debuggerdialogs.h"
con's avatar
con committed
60

hjk's avatar
hjk committed
61
#include <utils/qtcassert.h>
62
#include <utils/fancymainwindow.h>
63
#include <texteditor/itexteditor.h>
64
#include <projectexplorer/toolchain.h>
65
#include <coreplugin/icore.h>
hjk's avatar
hjk committed
66

con's avatar
con committed
67
68
69
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
70
#include <QtCore/QMetaObject>
con's avatar
con committed
71
72
#include <QtCore/QTime>
#include <QtCore/QTimer>
73
#include <QtCore/QTextStream>
con's avatar
con committed
74
75

#include <QtGui/QAction>
76
#include <QtCore/QCoreApplication>
con's avatar
con committed
77
78
79
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
80
81
#include <QtGui/QDialogButtonBox>
#include <QtGui/QPushButton>
82
#ifdef Q_OS_WIN
83
#    include "shared/sharedlibraryinjector.h"
84
#endif
con's avatar
con committed
85

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
86
#ifdef Q_OS_UNIX
con's avatar
con committed
87
88
89
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
90
#include <ctype.h>
con's avatar
con committed
91

92
93
namespace Debugger {
namespace Internal {
con's avatar
con committed
94
95

//#define DEBUG_PENDING  1
96
//#define DEBUG_SUBITEM  1
con's avatar
con committed
97
98
99
100

#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
Roberto Raggi's avatar
Roberto Raggi committed
101
#   define PENDING_DEBUG(s)
con's avatar
con committed
102
103
#endif

104
105
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

hjk's avatar
hjk committed
106
static bool stateAcceptsGdbCommands(DebuggerState state)
hjk's avatar
hjk committed
107
108
{
    return state == AdapterStarted
109
        || state == InferiorUnrunnable
hjk's avatar
hjk committed
110
        || state == InferiorStarting
hjk's avatar
hjk committed
111
112
113
114
        || state == InferiorRunningRequested
        || state == InferiorRunning
        || state == InferiorStopping
        || state == InferiorStopped
hjk's avatar
hjk committed
115
116
117
118
119
        || state == InferiorShuttingDown
        || state == InferiorShutDown
        || state == AdapterShuttingDown;
};

con's avatar
con committed
120
121
122
123
124
125
static int &currentToken()
{
    static int token = 0;
    return token;
}

126
// reads a MI-encoded item frome the consolestream
hjk's avatar
hjk committed
127
static bool parseConsoleStream(const GdbResponse &response, GdbMi *contents)
128
{
hjk's avatar
hjk committed
129
    GdbMi output = response.data.findChild("consolestreamoutput");
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
    QByteArray out = output.data();

    int markerPos = out.indexOf('"') + 1; // position of 'success marker'
    if (markerPos == 0 || out.at(markerPos) == 'f') {  // 't' or 'f'
        // custom dumper produced no output
        return false;
    }

    out = out.mid(markerPos +  1);
    out = out.left(out.lastIndexOf('"'));
    // optimization: dumper output never needs real C unquoting
    out.replace('\\', "");
    out = "dummy={" + out + "}";

    contents->fromString(out);
    //qDebug() << "CONTENTS" << contents->toString(true);
    return contents->isValid();
}

hjk's avatar
hjk committed
149
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
150
{
hjk's avatar
hjk committed
151
    GdbMi output = response.data.findChild("consolestreamoutput");
152
153
154
155
156
157
158
159
160
161
    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
162
163
164
165
166
167
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

hjk's avatar
hjk committed
168
169
GdbEngine::GdbEngine(DebuggerManager *manager) :
    IDebuggerEngine(manager),
170
#ifdef Q_OS_WIN // Do injection loading with MinGW (call loading does not work with 64bit)
hjk's avatar
hjk committed
171
    m_dumperInjectionLoad(true)
172
#else
hjk's avatar
hjk committed
173
    m_dumperInjectionLoad(false)
174
#endif
con's avatar
con committed
175
{
176
177
    m_trkOptions = QSharedPointer<TrkOptions>(new TrkOptions);
    m_trkOptions->fromSettings(Core::ICore::instance()->settings());
hjk's avatar
hjk committed
178
    m_gdbAdapter = 0;
179

180
181
    connect(theDebuggerAction(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setAutoDerefPointers(QVariant)));
182
}
183

184
void GdbEngine::connectDebuggingHelperActions()
185
{
186
187
188
189
190
191
    connect(theDebuggerAction(UseDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setUseDebuggingHelpers(QVariant)));
    connect(theDebuggerAction(DebugDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setDebugDebuggingHelpers(QVariant)));
    connect(theDebuggerAction(RecheckDebuggingHelpers), SIGNAL(triggered()),
            this, SLOT(recheckDebuggingHelperAvailability()));
192
193
}
   
194
195
196
197
198
199
200
void GdbEngine::disconnectDebuggingHelperActions()
{
    disconnect(theDebuggerAction(UseDebuggingHelpers), 0, this, 0);
    disconnect(theDebuggerAction(DebugDebuggingHelpers), 0, this, 0);
    disconnect(theDebuggerAction(RecheckDebuggingHelpers), 0, this, 0);
}

201
202
203
204
DebuggerStartMode GdbEngine::startMode() const
{
    QTC_ASSERT(!m_startParameters.isNull(), return NoStartMode);
    return m_startParameters->startMode;
con's avatar
con committed
205
206
}

207
208
209
210
211
QMainWindow *GdbEngine::mainWindow() const
{
    return m_manager->mainWindow();
}

con's avatar
con committed
212
213
GdbEngine::~GdbEngine()
{
hjk's avatar
hjk committed
214
    // prevent sending error messages afterwards
215
    delete m_gdbAdapter;
hjk's avatar
hjk committed
216
217
}

218
void GdbEngine::connectAdapter()
con's avatar
con committed
219
220
{
    // Gdb Process interaction
hjk's avatar
hjk committed
221
    connect(m_gdbAdapter, SIGNAL(readyReadStandardOutput()),
222
        this, SLOT(readGdbStandardOutput()));
hjk's avatar
hjk committed
223
    connect(m_gdbAdapter, SIGNAL(readyReadStandardError()),
224
        this, SLOT(readGdbStandardError()));
hjk's avatar
hjk committed
225
226
227

    connect(m_gdbAdapter, SIGNAL(adapterStarted()),
        this, SLOT(handleAdapterStarted()));
228
229
    connect(m_gdbAdapter, SIGNAL(adapterStartFailed(QString,QString)),
        this, SLOT(handleAdapterStartFailed(QString,QString)));
hjk's avatar
hjk committed
230
231
232
233
234
235
236
237
238
239
240
241
    connect(m_gdbAdapter, SIGNAL(adapterShutDown()),
        this, SLOT(handleAdapterShutDown()));
    connect(m_gdbAdapter, SIGNAL(adapterShutdownFailed(QString)),
        this, SLOT(handleAdapterShutdownFailed(QString)));

    connect(m_gdbAdapter, SIGNAL(inferiorStartFailed(QString)),
        this, SLOT(handleInferiorStartFailed(QString)));
    connect(m_gdbAdapter, SIGNAL(inferiorShutDown()),
        this, SLOT(handleInferiorShutDown()));
    connect(m_gdbAdapter, SIGNAL(inferiorShutdownFailed(QString)),
        this, SLOT(handleInferiorShutdownFailed(QString)));

242
243
    connect(m_gdbAdapter, SIGNAL(adapterCrashed(QString)),
        this, SLOT(handleAdapterCrashed(QString)));
244
}
245

246
247
void GdbEngine::initializeVariables()
{
248
    m_debuggingHelperState = DebuggingHelperUninitialized;
249
    m_gdbVersion = 100;
hjk's avatar
hjk committed
250
    m_gdbBuildVersion = -1;
hjk's avatar
hjk committed
251
    m_isSynchroneous = false;
252
253
254
255
256
257
258
259
260

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

    m_modulesListOutdated = true;
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
    m_pendingRequests = 0;
261
    m_commandsDoneCallback = 0;
262
    m_commandsToRunOnTemporaryBreak.clear();
263
    m_cookieForToken.clear();
264
265
266
267
268
269

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

    m_inbuffer.clear();

270
271
272
273
    // ConverterState has no reset() function.
    m_outputCodecState.~ConverterState();
    new (&m_outputCodecState) QTextCodec::ConverterState();

274
275
    m_currentFunctionArgs.clear();
    m_currentFrame.clear();
276
    m_dumperHelper.clear();
277
278
}

279
QString GdbEngine::errorMessage(QProcess::ProcessError error)
con's avatar
con committed
280
281
282
{
    switch (error) {
        case QProcess::FailedToStart:
283
            return tr("The Gdb process failed to start. Either the "
con's avatar
con committed
284
                "invoked program '%1' is missing, or you may have insufficient "
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
285
                "permissions to invoke the program.")
hjk's avatar
hjk committed
286
                .arg(theDebuggerStringSetting(GdbLocation));
con's avatar
con committed
287
        case QProcess::Crashed:
288
            return tr("The Gdb process crashed some time after starting "
con's avatar
con committed
289
290
                "successfully.");
        case QProcess::Timedout:
291
            return tr("The last waitFor...() function timed out. "
con's avatar
con committed
292
293
294
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
        case QProcess::WriteError:
295
            return tr("An error occurred when attempting to write "
con's avatar
con committed
296
297
298
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
        case QProcess::ReadError:
299
            return tr("An error occurred when attempting to read from "
con's avatar
con committed
300
301
                "the Gdb process. For example, the process may not be running.");
        default:
302
            return tr("An unknown error in the Gdb process occurred. ");
con's avatar
con committed
303
304
305
306
307
308
309
    }
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
310
    Q_UNUSED(to)
con's avatar
con committed
311
312
313
314
315
316
317
318
319
320
321
    // 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

322
323
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
324
    m_manager->showApplicationOutput(m_outputCodec->toUnicode(
325
326
327
            data.constData(), data.length(), &m_outputCodecState));
}

hjk's avatar
hjk committed
328
329
void GdbEngine::debugMessage(const QString &msg)
{
330
    gdbOutputAvailable(LogDebug, msg);
hjk's avatar
hjk committed
331
332
}

333
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
334
335
336
{
    static QTime lastTime;

337
    if (theDebuggerBoolSetting(LogTimeStamps))
338
339
        gdbOutputAvailable(LogTime, currentTime());
    gdbOutputAvailable(LogOutput, QString::fromLocal8Bit(buff, buff.length()));
con's avatar
con committed
340
341
342
343
344

#if 0
    qDebug() // << "#### start response handling #### "
        << currentTime()
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
345
346
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
347
        << "size:" << buff.size();
con's avatar
con committed
348
#else
349
    //qDebug() << "buf:" << buff;
con's avatar
con committed
350
351
352
353
#endif

    lastTime = QTime::currentTime();

354
355
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
356

357
358
359
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
360

361
362
363
364
    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
365
            break;
366
367
368
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
369
        //qDebug() << "found token" << token;
370
    }
con's avatar
con committed
371

hjk's avatar
hjk committed
372
    // next char decides kind of response
373
374
375
376
377
378
379
380
381
382
383
384
385
386
    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
387

hjk's avatar
hjk committed
388
            GdbMi result;
389
390
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
391
                if (*from != ',') {
hjk's avatar
hjk committed
392
393
                    // happens on archer where we get 
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb) 
hjk's avatar
hjk committed
394
                    result.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
395
396
397
398
399
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
hjk's avatar
hjk committed
400
401
402
                    //qDebug() << "parsed result:" << data.toString();
                    result.m_children += data;
                    result.m_type = GdbMi::Tuple;
con's avatar
con committed
403
404
                }
            }
405
            if (asyncClass == "stopped") {
406
                handleStopResponse(result);
407
408
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
409
410
411
412
            } 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",
413
                // symbols-loaded="0"
hjk's avatar
hjk committed
414
                QByteArray id = result.findChild("id").data();
415
                if (!id.isEmpty())
hjk's avatar
hjk committed
416
                    showStatusMessage(tr("Library %1 loaded.").arg(_(id)));
hjk's avatar
hjk committed
417
418
419
420
            } 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
421
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
422
                showStatusMessage(tr("Library %1 unloaded.").arg(_(id)));
423
424
            } else if (asyncClass == "thread-group-created") {
                // Archer has "{id="28902"}" 
hjk's avatar
hjk committed
425
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
426
                showStatusMessage(tr("Thread group %1 created.").arg(_(id)));
427
428
429
                int pid = id.toInt();
                if (pid != inferiorPid())
                    handleInferiorPidChanged(pid);
430
431
            } else if (asyncClass == "thread-created") {
                //"{id="1",group-id="28902"}" 
hjk's avatar
hjk committed
432
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
433
                showStatusMessage(tr("Thread %1 created.").arg(_(id)));
434
435
            } else if (asyncClass == "thread-group-exited") {
                // Archer has "{id="28902"}" 
hjk's avatar
hjk committed
436
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
437
                showStatusMessage(tr("Thread group %1 exited.").arg(_(id)));
438
439
            } else if (asyncClass == "thread-exited") {
                //"{id="1",group-id="28902"}" 
hjk's avatar
hjk committed
440
441
                QByteArray id = result.findChild("id").data();
                QByteArray groupid = result.findChild("group-id").data();
hjk's avatar
hjk committed
442
                showStatusMessage(tr("Thread %1 in group %2 exited.")
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
443
                    .arg(_(id)).arg(_(groupid)));
hjk's avatar
hjk committed
444
            } else if (asyncClass == "thread-selected") {
hjk's avatar
hjk committed
445
                QByteArray id = result.findChild("id").data();
hjk's avatar
hjk committed
446
                showStatusMessage(tr("Thread %1 selected.").arg(_(id)));
hjk's avatar
hjk committed
447
                //"{id="2"}" 
448
            #if defined(Q_OS_MAC)
449
450
451
452
453
454
455
456
457
458
459
            } 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
            } else {
460
                qDebug() << "IGNORED ASYNC OUTPUT"
hjk's avatar
hjk committed
461
                    << asyncClass << result.toString();
462
            }
463
464
            break;
        }
465

466
        case '~': {
467
468
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
469
470
471
472
473
474
475

            // Parse pid from noise.
            if (!inferiorPid()) {
                // Linux/Mac gdb: [New [Tt]hread 0x545 (LWP 4554)]
                static QRegExp re1(_("New .hread 0x[0-9a-f]+ \\(LWP ([0-9]*)\\)"));
                // MinGW 6.8: [New thread 2437.0x435345]
                static QRegExp re2(_("New .hread ([0-9]+)\\.0x[0-9a-f]*"));
hjk's avatar
hjk committed
476
477
478
                // Mac: [Switching to process 9294 local thread 0x2e03] or
                // [Switching to process 31773]
                static QRegExp re3(_("Switching to process ([0-9]+)"));
479
480
481
482
483
                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));
484
485
                else if (re3.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re3.cap(1));
486
            }
487
488

            // Show some messages to give the impression something happens.
hjk's avatar
hjk committed
489
            if (data.startsWith("Reading symbols from "))
490
                showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
491
492
493
            if (data.endsWith('\n'))
                data.chop(1);
            if (data.startsWith("[New ") || data.startsWith("[Thread "))
494
                showStatusMessage(_(data), 1000);
495
496
            break;
        }
497

498
        case '@': {
499
            readDebugeeOutput(GdbMi::parseCString(from, to));
500
            break;
con's avatar
con committed
501
502
        }

503
504
505
506
507
508
        case '&': {
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingLogStreamOutput += data;
            // On Windows, the contents seem to depend on the debugger
            // version and/or OS version used.
            if (data.startsWith("warning:"))
hjk's avatar
hjk committed
509
                manager()->showApplicationOutput(_(data.mid(9))); // cut "warning: "
con's avatar
con committed
510
511
512
            break;
        }

513
        case '^': {
hjk's avatar
hjk committed
514
            GdbResponse response;
con's avatar
con committed
515

hjk's avatar
hjk committed
516
            response.token = token;
con's avatar
con committed
517

518
519
520
            for (inner = from; inner != to; ++inner)
                if (*inner < 'a' || *inner > 'z')
                    break;
con's avatar
con committed
521

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
522
            QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
523
            if (resultClass == "done") {
hjk's avatar
hjk committed
524
                response.resultClass = GdbResultDone;
525
526
527
            } else if (resultClass == "running") {
                setState(InferiorRunning);
                showStatusMessage(tr("Running..."));
hjk's avatar
hjk committed
528
                response.resultClass = GdbResultRunning;
529
            } else if (resultClass == "connected") {
hjk's avatar
hjk committed
530
                response.resultClass = GdbResultConnected;
531
            } else if (resultClass == "error") {
hjk's avatar
hjk committed
532
                response.resultClass = GdbResultError;
533
            } else if (resultClass == "exit") {
hjk's avatar
hjk committed
534
                response.resultClass = GdbResultExit;
535
            } else {
hjk's avatar
hjk committed
536
                response.resultClass = GdbResultUnknown;
537
            }
con's avatar
con committed
538

539
540
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
541
542
                if (*from == ',') {
                    ++from;
hjk's avatar
hjk committed
543
544
545
                    response.data.parseTuple_helper(from, to);
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
hjk's avatar
hjk committed
546
547
                } else {
                    // Archer has this
hjk's avatar
hjk committed
548
549
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
con's avatar
con committed
550
551
                }
            }
552
553
554

            //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
            //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
hjk's avatar
hjk committed
555
            response.data.setStreamOutput("logstreamoutput",
556
                m_pendingLogStreamOutput);
hjk's avatar
hjk committed
557
            response.data.setStreamOutput("consolestreamoutput",
558
559
560
561
                m_pendingConsoleStreamOutput);
            m_pendingLogStreamOutput.clear();
            m_pendingConsoleStreamOutput.clear();

hjk's avatar
hjk committed
562
            handleResultRecord(response);
563
564
565
566
567
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
568
569
570
571
572
573
        }
    }
}

void GdbEngine::readGdbStandardError()
{
hjk's avatar
hjk committed
574
    qWarning() << "Unexpected gdb stderr:" << m_gdbAdapter->readAllStandardError();
con's avatar
con committed
575
576
577
578
}

void GdbEngine::readGdbStandardOutput()
{
579
580
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
581

hjk's avatar
hjk committed
582
    m_inbuffer.append(m_gdbAdapter->readAllStandardOutput());
con's avatar
con committed
583

584
585
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
586
        int end = m_inbuffer.indexOf('\n', scan);
587
588
589
590
591
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
592
        scan = newstart;
593
594
        if (end == start)
            continue;
595
        #if defined(Q_OS_WIN)
596
597
598
599
600
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
601
        #endif
602
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
con's avatar
con committed
603
    }
604
    m_inbuffer.clear();
con's avatar
con committed
605
606
607
608
}

void GdbEngine::interruptInferior()
{
hjk's avatar
hjk committed
609
    QTC_ASSERT(state() == InferiorRunning, qDebug() << state());
610

hjk's avatar
hjk committed
611
    if (state() == DebuggerNotReady) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
612
        debugMessage(_("TRYING TO INTERRUPT INFERIOR WITHOUT RUNNING GDB"));
613
        shutdown();
con's avatar
con committed
614
        return;
615
    }
con's avatar
con committed
616

hjk's avatar
hjk committed
617
618
619
    setState(InferiorStopping);
    showStatusMessage(tr("Stop requested..."), 5000);

620
    debugMessage(_("TRYING TO INTERUPT INFERIOR"));
hjk's avatar
hjk committed
621
    m_gdbAdapter->interruptInferior();
con's avatar
con committed
622
623
624
625
}

void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
626
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
627
    if (pid == 0) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
628
        debugMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
629
630
        return;
    }
hjk's avatar
hjk committed
631
    if (pid == inferiorPid())
con's avatar
con committed
632
        return;
633
634
    debugMessage(_("FOUND PID %1").arg(pid));    

635
    handleInferiorPidChanged(pid);
636
637
    if (m_dumperInjectionLoad)
        tryLoadDebuggingHelpers();
con's avatar
con committed
638
639
}

hjk's avatar
hjk committed
640
641
void GdbEngine::postCommand(const QString &command, AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
642
643
644
645
646
647
648
{
    postCommand(command, NoFlags, callback, callbackName, cookie);
}

void GdbEngine::postCommand(const QString &command, GdbCommandFlags flags,
                            AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
hjk's avatar
hjk committed
649
650
651
{
    GdbCommand cmd;
    cmd.command = command;
652
    cmd.flags = flags;
hjk's avatar
hjk committed
653
654
655
656
657
658
    cmd.adapterCallback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

659
void GdbEngine::postCommand(const QString &command, GdbCommandCallback callback,
660
661
                            const char *callbackName, const QVariant &cookie)
{
662
    postCommand(command, NoFlags, callback, callbackName, cookie);
663
664
}

665
void GdbEngine::postCommand(const QString &command, GdbCommandFlags flags,
666
667
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
hjk's avatar
hjk committed
668
669
670
671
672
673
674
675
676
677
678
{
    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
679
{
hjk's avatar
hjk committed
680
    if (!stateAcceptsGdbCommands(state())) {
hjk's avatar
hjk committed
681
        PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: ") + cmd.command);
682
683
        debugMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
            .arg(cmd.command).arg(state()));
con's avatar
con committed
684
685
686
        return;
    }

hjk's avatar
hjk committed
687
    if (cmd.flags & RebuildModel) {
con's avatar
con committed
688
        ++m_pendingRequests;
hjk's avatar
hjk committed
689
        PENDING_DEBUG("   CALLBACK" << cmd.callbackName
690
            << "INCREMENTS PENDING TO:" << m_pendingRequests << cmd.command);
con's avatar
con committed
691
    } else {
hjk's avatar
hjk committed
692
        PENDING_DEBUG("   UNKNOWN CALLBACK" << cmd.callbackName
693
            << "LEAVES PENDING AT:" << m_pendingRequests << cmd.command);
con's avatar
con committed
694
695
    }

hjk's avatar
hjk committed
696
    if (cmd.flags & NeedsStop) {
697
        if (state() == InferiorStopped || state() == AdapterStarted) {
hjk's avatar
hjk committed
698
699
700
701
702
703
704
705
706
707
            // Can be safely sent now.
            flushCommand(cmd);
        } else {
            // Queue the commands that we cannot send at once.
            showStatusMessage(tr("Stopping temporarily."), 1000);
            qDebug() << _("QUEUING COMMAND ") + cmd.command;
            debugMessage(_("QUEUING COMMAND ") + cmd.command);
            m_commandsToRunOnTemporaryBreak.append(cmd);
            interruptInferior();
        }
hjk's avatar
hjk committed
708
    } else if (!cmd.command.isEmpty()) {
709
        flushCommand(cmd);
con's avatar
con committed
710
711
712
    }
}

hjk's avatar
hjk committed
713
void GdbEngine::flushCommand(const GdbCommand &cmd0)
714
{
hjk's avatar
hjk committed
715
    GdbCommand cmd = cmd0;
hjk's avatar
hjk committed
716
    if (state() == DebuggerNotReady) {
717
        gdbInputAvailable(LogInput, cmd.command);
718
719
720
721
        debugMessage(_("GDB PROCESS NOT RUNNING, PLAIN CMD IGNORED: ") + cmd.command);
        return;
    }

722
    ++currentToken();
723
    cmd.postTime = QTime::currentTime();
724
725
    m_cookieForToken[currentToken()] = cmd;
    cmd.command = QString::number(currentToken()) + cmd.command;
726
    if (cmd.flags & EmbedToken)
727
        cmd.command = cmd.command.arg(currentToken());
728
    gdbInputAvailable(LogInput, cmd.command);
729
730

    m_gdbAdapter->write(cmd.command.toLatin1() + "\r\n");
731
732
}

hjk's avatar
hjk committed
733
void GdbEngine::handleResultRecord(const GdbResponse &response)
con's avatar
con committed
734
{
hjk's avatar
hjk committed
735
    //qDebug() << "TOKEN:" << response.token
736
    //    << " ACCEPTABLE:" << m_oldestAcceptableToken;
hjk's avatar
hjk committed
737
    //qDebug() << "\nRESULT" << response.token << response.toString();
con's avatar
con committed
738

hjk's avatar
hjk committed
739
    int token = response.token;
con's avatar
con committed
740
741
742
    if (token == -1)
        return;

743
    if (!m_cookieForToken.contains(token)) {
744
745
746
747
        // In theory this should not happen (rather the error should be
        // reported in the "first" response to the command) in practice it
        // does. We try to handle a few situations we are aware of gracefully.
        // Ideally, this code should not be present at all.
748
749
        debugMessage(_("COOKIE FOR TOKEN %1 ALREADY EATEN. "
            "TWO RESPONSES FOR ONE COMMAND?").arg(token));
hjk's avatar
hjk committed
750
751
        if (response.resultClass == GdbResultError) {
            QByteArray msg = response.data.findChild("msg").data();
752
753
754
755
756
757
758
            if (msg == "Cannot find new threads: generic error") {
                // Handle a case known to occur on Linux/gdb 6.8 when debugging moc
                // with helpers enabled. In this case we get a second response with
                // msg="Cannot find new threads: generic error"
                showMessageBox(QMessageBox::Critical,
                    tr("Executable failed"), QString::fromLocal8Bit(msg));
                showStatusMessage(tr("Process failed to start."));
759
                shutdown();
760
761
762
            } else if (msg == "\"finish\" not meaningful in the outermost frame.") { 
                // Handle a case known to appear on gdb 6.4 symbianelf when
                // the stack is cut due to access to protected memory.
763
764
                setState(InferiorStopping);
                setState(InferiorStopped);
765
766
767
768
769
770
771
772
773
774
775
            } else if (msg.startsWith("Cannot find bounds of current function")) {
                // Happens when running "-exec-next" in a function for which
                // there is no debug information. Divert to "-exec-next-step"
                setState(InferiorStopping);
                setState(InferiorStopped);
                nextIExec();
            } else {
                showMessageBox(QMessageBox::Critical,
                    tr("Executable failed"), QString::fromLocal8Bit(msg));
                showStatusMessage(tr("Executable failed: %1")
                    .arg(QString::fromLocal8Bit(msg)));
776
            }
777
778
779
780
        }
        return;
    }

781
    GdbCommand cmd = m_cookieForToken.take(token);
782
    if (theDebuggerBoolSetting(LogTimeStamps)) {
783
        gdbOutputAvailable(LogTime, _("Response time: %1: %2 s")
784
785
786
            .arg(cmd.command)
            .arg(cmd.postTime.msecsTo(QTime::currentTime()) / 1000.));
    }
con's avatar
con committed
787

hjk's avatar
hjk committed
788
    if (response.token < m_oldestAcceptableToken && (cmd.flags & Discardable)) {
789
        //debugMessage(_("### SKIPPING OLD RESULT") + response.toString());
con's avatar
con committed
790
791
792
        return;
    }

hjk's avatar
hjk committed
793
794
795
    GdbResponse responseWithCookie = response;
    responseWithCookie.cookie = cmd.cookie;

796
    if (response.resultClass != GdbResultError &&
797
798
799
800
801
802
        response.resultClass != ((cmd.flags & RunRequest) ? GdbResultRunning :
                                 (cmd.flags & ExitRequest) ? GdbResultExit :
                                 GdbResultDone)) {
        QString rsp = _(GdbResponse::stringFromResultClass(response.resultClass));
        qWarning() << "UNEXPECTED RESPONSE " << rsp << " TO COMMAND" << cmd.command << " AT " __FILE__ ":" STRINGIFY(__LINE__);
        debugMessage(_("UNEXPECTED RESPONSE %1 TO COMMAND %2").arg(rsp).arg(cmd.command));
803
804
805
806
807
808
    } else {
        if (cmd.callback)
            (this->*cmd.callback)(responseWithCookie);
        else if (cmd.adapterCallback)
            (m_gdbAdapter->*cmd.adapterCallback)(responseWithCookie);
    }
con's avatar
con committed
809

810
    if (cmd.flags & RebuildModel) {
con's avatar
con committed
811
        --m_pendingRequests;
hjk's avatar
hjk committed
812
        PENDING_DEBUG("   TYPE " << cmd.callbackName << " DECREMENTS PENDING TO: "
con's avatar
con committed
813
            << m_pendingRequests << cmd.command);
814
        if (m_pendingRequests <= 0) {
hjk's avatar
hjk committed
815
816
            PENDING_DEBUG("\n\n ....  AND TRIGGERS MODEL UPDATE\n");
            rebuildModel();
817
        }
con's avatar
con committed
818
    } else {
hjk's avatar
hjk committed
819
        PENDING_DEBUG("   UNKNOWN TYPE " << cmd.callbackName << " LEAVES PENDING AT: "
con's avatar
con committed
820
821
            << m_pendingRequests << cmd.command);
    }
822

823
824
    // Continue only if there are no commands wire anymore, so this will
    // be fully synchroneous.
825
826
827
828
    // This is somewhat inefficient, as it makes the last command synchronous.
    // An optimization would be requesting the continue immediately when the
    // event loop is entered, and let individual commands have a flag to suppress
    // that behavior.
829
    if (m_commandsDoneCallback && m_cookieForToken.isEmpty()) {
830
        debugMessage(_("ALL COMMANDS DONE; INVOKING CALLBACK"));
831
832
        CommandsDoneCallback cont = m_commandsDoneCallback;
        m_commandsDoneCallback = 0;
hjk's avatar
hjk committed
833
834
835
        (this->*cont)();
    } else {
        PENDING_DEBUG("MISSING TOKENS: " << m_cookieForToken.keys());
836
    }
con's avatar
con committed
837
838
839
840
}

void GdbEngine::executeDebuggerCommand(const QString &command)
{
hjk's avatar
hjk committed
841
    if (state() == DebuggerNotReady) {
842
        debugMessage(_("GDB PROCESS NOT RUNNING, PLAIN CMD IGNORED: ") + command);
con's avatar
con committed
843
844
845
        return;
    }

hjk's avatar
hjk committed
846
    m_gdbAdapter->write(command.toLatin1() + "\r\n");
con's avatar
con committed
847
848
}

849
// Called from CoreAdapter and AttachAdapter
850
void GdbEngine::updateAll()
851
{
852
    QTC_ASSERT(state() == InferiorUnrunnable || state() == InferiorStopped, /**/);
853
    tryLoadDebuggingHelpers();
hjk's avatar
hjk committed
854
855
    postCommand(_("-stack-list-frames"), WatchUpdate, CB(handleStackListFrames),
        QVariant::fromValue<StackCookie>(StackCookie(false, true)));
856
    manager()->stackHandler()->setCurrentIndex(0);
857
    if (supportsThreads())
858
        postCommand(_("-thread-list-ids"), WatchUpdate, CB(handleStackListThreads), 0);
hjk's avatar
hjk committed
859
    manager()->reloadRegisters();
hjk's avatar
hjk committed
860
    updateLocals(); 
861
862
}

hjk's avatar
hjk committed
863
void GdbEngine::handleQuerySources(const GdbResponse &response)
con's avatar
con committed
864
{
hjk's avatar
hjk committed
865
    if (response.resultClass == GdbResultDone) {
866
        QMap<QString, QString> oldShortToFull = m_shortToFullName;
con's avatar
con committed
867
868
869
870
        m_shortToFullName.clear();
        m_fullToShortName.clear();
        // "^done,files=[{file="../../../../bin/gdbmacros/gdbmacros.cpp",
        // fullname="/data5/dev/ide/main/bin/gdbmacros/gdbmacros.cpp"},
hjk's avatar
hjk committed
871
        GdbMi files = response.data.findChild("files");
con's avatar
con committed
872
        foreach (const GdbMi &item, files.children()) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
873
            QString fileName = QString::fromLocal8Bit(item.findChild("file").data());
con's avatar
con committed
874
            GdbMi fullName = item.findChild("fullname");
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
875
            QString full = QString::fromLocal8Bit(fullName.data());
con's avatar
con committed
876
877
878
879
880
881
882
883
            #ifdef Q_OS_WIN
            full = QDir::cleanPath(full);
            #endif
            if (fullName.isValid() && QFileInfo(full).isReadable()) {
                m_shortToFullName[fileName] = full;
                m_fullToShortName[full] = fileName;
            }
        }
884
        if (m_shortToFullName != oldShortToFull)
hjk's avatar
hjk committed
885
            manager()->sourceFileWindow()->setSourceFiles(m_shortToFullName);
con's avatar
con committed
886
887
888
    }
}

889
#if 0
hjk's avatar
hjk committed
890
void GdbEngine::handleExecJumpToLine(const GdbResponse &response)
con's avatar
con committed
891
892
893
894
895
896
897
898
{
    // 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"
hjk's avatar
hjk committed
899
    setState(InferiorStopped);
hjk's avatar
hjk committed
900
    showStatusMessage(tr("Jumped. Stopped."));
hjk's avatar
hjk committed
901
    QByteArray output = response.data.findChild("logstreamoutput").data();
902
    if (output.isEmpty())
con's avatar
con committed
903
        return;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
904
905
906
907
908
909
    int idx1 = output.indexOf(' ') + 1;
    if (idx1 > 0) {
        int idx2 = output.indexOf(':'