gdbengine.cpp 158 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2
3
4
**
** This file is part of Qt Creator
**
hjk's avatar
hjk committed
5
** Copyright (c) 2010 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

34
#include "gdboptionspage.h"
hjk's avatar
hjk committed
35
36
#include "debuggeruiswitcher.h"
#include "debuggermainwindow.h"
37
#include "debuggerplugin.h"
38

39
40
#include "attachgdbadapter.h"
#include "coregdbadapter.h"
ck's avatar
ck committed
41
#include "localplaingdbadapter.h"
42
#include "termgdbadapter.h"
ck's avatar
ck committed
43
44
#include "remotegdbserveradapter.h"
#include "remoteplaingdbadapter.h"
45
#include "trkgdbadapter.h"
con's avatar
con committed
46

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

#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
58
#include "snapshothandler.h"
59
#include "sourcefileshandler.h"
con's avatar
con committed
60
#include "stackhandler.h"
hjk's avatar
hjk committed
61
#include "threadshandler.h"
con's avatar
con committed
62
#include "watchhandler.h"
63

64
#include "sourcefileswindow.h"
con's avatar
con committed
65

66
#include "debuggerdialogs.h"
con's avatar
con committed
67

hjk's avatar
hjk committed
68
#include <utils/qtcassert.h>
69
#include <utils/fancymainwindow.h>
70
#include <texteditor/itexteditor.h>
71
#include <projectexplorer/toolchain.h>
72
#include <coreplugin/icore.h>
hjk's avatar
hjk committed
73
74
#include <coreplugin/progressmanager/progressmanager.h>
#include <coreplugin/progressmanager/futureprogress.h>
hjk's avatar
hjk committed
75

76
#include <QtCore/QCoreApplication>
con's avatar
con committed
77
78
79
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
80
#include <QtCore/QMetaObject>
con's avatar
con committed
81
82
#include <QtCore/QTime>
#include <QtCore/QTimer>
83
#include <QtCore/QTemporaryFile>
84
#include <QtCore/QTextStream>
con's avatar
con committed
85
86

#include <QtGui/QAction>
87
#include <QtGui/QDialogButtonBox>
con's avatar
con committed
88
89
90
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
91
#include <QtGui/QPushButton>
con's avatar
con committed
92

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
93
#ifdef Q_OS_UNIX
con's avatar
con committed
94
95
96
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
97
#include <ctype.h>
con's avatar
con committed
98

99

100
101
namespace Debugger {
namespace Internal {
con's avatar
con committed
102
103
104

//#define DEBUG_PENDING  1

105
106
static const char winPythonVersionC[] = "python2.5";

con's avatar
con committed
107
108
109
#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
Roberto Raggi's avatar
Roberto Raggi committed
110
#   define PENDING_DEBUG(s)
con's avatar
con committed
111
#endif
112
#define PENDING_DEBUGX(s) qDebug() << s
con's avatar
con committed
113

114
115
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

116
QByteArray GdbEngine::tooltipINameForExpression(const QByteArray &exp)
117
118
119
120
121
122
123
{
    // FIXME: 'exp' can contain illegal characters
    //return "tooltip." + exp;
    Q_UNUSED(exp)
    return "tooltip.x";
}

hjk's avatar
hjk committed
124
static bool stateAcceptsGdbCommands(DebuggerState state)
hjk's avatar
hjk committed
125
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
126
127
128
129
130
131
132
133
    switch (state) {
    case AdapterStarting:
    case AdapterStarted:
    case AdapterStartFailed:
    case InferiorUnrunnable:
    case InferiorStarting:
    case InferiorStartFailed:
    case InferiorRunningRequested:
134
    case InferiorRunningRequested_Kill:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
135
136
    case InferiorRunning:
    case InferiorStopping:
137
    case InferiorStopping_Kill:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
138
139
140
141
142
143
144
145
146
147
148
149
150
    case InferiorStopped:
    case InferiorShuttingDown:
    case InferiorShutDown:
    case InferiorShutdownFailed:
        return true;
    case DebuggerNotReady:
    case EngineStarting:
    case InferiorStopFailed:
    case EngineShuttingDown:
        break;
    }
    return false;
}
hjk's avatar
hjk committed
151

con's avatar
con committed
152
153
154
155
156
157
static int &currentToken()
{
    static int token = 0;
    return token;
}

hjk's avatar
hjk committed
158
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
159
{
hjk's avatar
hjk committed
160
    GdbMi output = response.data.findChild("consolestreamoutput");
161
162
163
164
165
166
167
168
169
170
    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
171
172
173
174
175
176
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

177
178
GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters)
  : DebuggerEngine(startParameters)
con's avatar
con committed
179
{
hjk's avatar
hjk committed
180
    m_gdbAdapter = 0;
hjk's avatar
hjk committed
181
    m_progress = 0;
182

183
184
185
186
    m_commandTimer = new QTimer(this);
    m_commandTimer->setSingleShot(true);
    connect(m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));

187
188
    // Needs no resetting in initializeVariables()
    m_busy = false;
189
    initializeVariables();
190

191
192
    connect(theDebuggerAction(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setAutoDerefPointers(QVariant)));
193
194
    connect(theDebuggerAction(CreateFullBacktrace), SIGNAL(triggered()),
            this, SLOT(createFullBacktrace()));
195
}
196

197
void GdbEngine::connectDebuggingHelperActions()
198
{
199
200
201
    connect(theDebuggerAction(UseDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
            this, SLOT(setUseDebuggingHelpers(QVariant)));
    connect(theDebuggerAction(DebugDebuggingHelpers), SIGNAL(valueChanged(QVariant)),
202
            this, SLOT(setDebugDebuggingHelpersClassic(QVariant)));
203
    connect(theDebuggerAction(RecheckDebuggingHelpers), SIGNAL(triggered()),
204
            this, SLOT(recheckDebuggingHelperAvailabilityClassic()));
205
}
206

207
208
209
210
211
212
213
void GdbEngine::disconnectDebuggingHelperActions()
{
    disconnect(theDebuggerAction(UseDebuggingHelpers), 0, this, 0);
    disconnect(theDebuggerAction(DebugDebuggingHelpers), 0, this, 0);
    disconnect(theDebuggerAction(RecheckDebuggingHelpers), 0, this, 0);
}

214
215
DebuggerStartMode GdbEngine::startMode() const
{
216
    return startParameters().startMode;
con's avatar
con committed
217
218
}

219
220
QMainWindow *GdbEngine::mainWindow() const
{
221
    return DebuggerUISwitcher::instance()->mainWindow();
222
223
}

ck's avatar
ck committed
224
225
226
227
228
AbstractGdbProcess *GdbEngine::gdbProc() const
{
    return m_gdbAdapter->gdbProc();
}

con's avatar
con committed
229
230
GdbEngine::~GdbEngine()
{
231
    // Prevent sending error messages afterwards.
ck's avatar
ck committed
232
233
    if (m_gdbAdapter)
        disconnect(gdbProc(), 0, this, 0);
234
    delete m_gdbAdapter;
235
    m_gdbAdapter = 0;
hjk's avatar
hjk committed
236
237
}

238
void GdbEngine::connectAdapter()
con's avatar
con committed
239
{
hjk's avatar
hjk committed
240
241
    connect(m_gdbAdapter, SIGNAL(adapterStarted()),
        this, SLOT(handleAdapterStarted()));
242
243
    connect(m_gdbAdapter, SIGNAL(adapterStartFailed(QString,QString)),
        this, SLOT(handleAdapterStartFailed(QString,QString)));
244
245
    connect(m_gdbAdapter, SIGNAL(inferiorPrepared()),
        this, SLOT(handleInferiorPrepared()));
hjk's avatar
hjk committed
246
247
    connect(m_gdbAdapter, SIGNAL(inferiorStartFailed(QString)),
        this, SLOT(handleInferiorStartFailed(QString)));
248
249
    connect(m_gdbAdapter, SIGNAL(adapterCrashed(QString)),
        this, SLOT(handleAdapterCrashed(QString)));
250
}
251

252
253
void GdbEngine::initializeVariables()
{
254
    m_debuggingHelperState = DebuggingHelperUninitialized;
255
    m_gdbVersion = 100;
hjk's avatar
hjk committed
256
    m_gdbBuildVersion = -1;
257
    m_isMacGdb = false;
258
    m_hasPython = false;
259
    m_registerNamesListed = false;
260
261
262
263

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

264
    invalidateSourcesList();
265
    m_sourcesListUpdating = false;
266
267
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
268
    m_pendingWatchRequests = 0;
269
    m_pendingBreakpointRequests = 0;
270
    m_commandsDoneCallback = 0;
271
    m_commandsToRunOnTemporaryBreak.clear();
272
    m_cookieForToken.clear();
273
274
275
276
277

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

    m_inbuffer.clear();
278
    m_resultVarName.clear();
279

280
281
    m_commandTimer->stop();

282
283
284
285
    // ConverterState has no reset() function.
    m_outputCodecState.~ConverterState();
    new (&m_outputCodecState) QTextCodec::ConverterState();

286
287
    m_currentFunctionArgs.clear();
    m_currentFrame.clear();
288
    m_dumperHelper.clear();
289
290
291
#ifdef Q_OS_LINUX
    m_entryPoint.clear();
#endif
hjk's avatar
hjk committed
292
293
    delete m_progress;
    m_progress = 0;
294
295
}

296
QString GdbEngine::errorMessage(QProcess::ProcessError error)
con's avatar
con committed
297
298
299
{
    switch (error) {
        case QProcess::FailedToStart:
300
            return tr("The Gdb process failed to start. Either the "
con's avatar
con committed
301
                "invoked program '%1' is missing, or you may have insufficient "
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
302
                "permissions to invoke the program.")
303
                .arg(m_gdb);
con's avatar
con committed
304
        case QProcess::Crashed:
305
            return tr("The Gdb process crashed some time after starting "
con's avatar
con committed
306
307
                "successfully.");
        case QProcess::Timedout:
308
            return tr("The last waitFor...() function timed out. "
con's avatar
con committed
309
310
311
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
        case QProcess::WriteError:
312
            return tr("An error occurred when attempting to write "
con's avatar
con committed
313
314
315
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
        case QProcess::ReadError:
316
            return tr("An error occurred when attempting to read from "
con's avatar
con committed
317
318
                "the Gdb process. For example, the process may not be running.");
        default:
319
            return tr("An unknown error in the Gdb process occurred. ");
con's avatar
con committed
320
321
322
323
324
325
326
    }
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
327
    Q_UNUSED(to)
con's avatar
con committed
328
329
330
331
332
333
334
335
336
337
338
    // 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

339
340
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
341
342
343
    QString msg = m_outputCodec->toUnicode(data.constData(), data.length(),
        &m_outputCodecState);
    showMessage(msg, AppStuff);
344
345
}

346
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
347
348
349
{
    static QTime lastTime;

350
    if (theDebuggerBoolSetting(LogTimeStamps))
351
352
        showMessage(currentTime(), LogTime);
    showMessage(QString::fromLocal8Bit(buff, buff.length()), LogOutput);
con's avatar
con committed
353
354
355
356
357

#if 0
    qDebug() // << "#### start response handling #### "
        << currentTime()
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
358
359
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
360
        << "size:" << buff.size();
con's avatar
con committed
361
#else
362
    //qDebug() << "buf:" << buff;
con's avatar
con committed
363
364
365
366
#endif

    lastTime = QTime::currentTime();

367
368
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
369

370
371
372
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
373

374
375
376
377
    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
378
            break;
379
380
381
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
382
        //qDebug() << "found token" << token;
383
    }
con's avatar
con committed
384

hjk's avatar
hjk committed
385
    // next char decides kind of response
386
387
388
389
390
391
392
393
394
395
396
397
398
399
    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
400

hjk's avatar
hjk committed
401
            GdbMi result;
402
403
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
404
                if (*from != ',') {
405
406
                    // happens on archer where we get
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb)
hjk's avatar
hjk committed
407
                    result.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
408
409
410
411
412
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
hjk's avatar
hjk committed
413
414
415
                    //qDebug() << "parsed result:" << data.toString();
                    result.m_children += data;
                    result.m_type = GdbMi::Tuple;
con's avatar
con committed
416
417
                }
            }
418
            if (asyncClass == "stopped") {
419
                handleStopResponse(result);
420
421
                m_pendingLogStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();
422
423
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
424
425
426
427
            } 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",
428
                // symbols-loaded="0"
hjk's avatar
hjk committed
429
                QByteArray id = result.findChild("id").data();
430
                if (!id.isEmpty())
431
                    showStatusMessage(tr("Library %1 loaded").arg(_(id)), 1000);
hjk's avatar
hjk committed
432
433
                int progress = m_progress->progressValue();
                m_progress->setProgressValue(qMin(70, progress + 1));
434
                invalidateSourcesList();
hjk's avatar
hjk committed
435
436
437
438
            } 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
439
                QByteArray id = result.findChild("id").data();
440
                showStatusMessage(tr("Library %1 unloaded").arg(_(id)), 1000);
441
                invalidateSourcesList();
442
443
            } else if (asyncClass == "thread-group-added") {
                // 7.1-symbianelf has "{id="i1"}"
444
445
446
            } 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
447
448
                // *-started seems to be standard in 7.1, but in early
                // 7.0.x, there was a *-created instead.
449
                const int progress = m_progress->progressValue();
hjk's avatar
hjk committed
450
                m_progress->setProgressValue(qMin(70, progress + 1));
hjk's avatar
hjk committed
451
                QByteArray id = result.findChild("id").data();
452
                showStatusMessage(tr("Thread group %1 created").arg(_(id)), 1000);
453
                const int pid = id.toInt();
454
                notifyInferiorPid(pid);
455
            } else if (asyncClass == "thread-created") {
456
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
457
                QByteArray id = result.findChild("id").data();
458
                showStatusMessage(tr("Thread %1 created").arg(_(id)), 1000);
459
            } else if (asyncClass == "thread-group-exited") {
460
                // Archer has "{id="28902"}"
hjk's avatar
hjk committed
461
                QByteArray id = result.findChild("id").data();
462
                showStatusMessage(tr("Thread group %1 exited").arg(_(id)), 1000);
463
            } else if (asyncClass == "thread-exited") {
464
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
465
466
                QByteArray id = result.findChild("id").data();
                QByteArray groupid = result.findChild("group-id").data();
467
                showStatusMessage(tr("Thread %1 in group %2 exited")
hjk's avatar
hjk committed
468
                    .arg(_(id)).arg(_(groupid)), 1000);
hjk's avatar
hjk committed
469
            } else if (asyncClass == "thread-selected") {
hjk's avatar
hjk committed
470
                QByteArray id = result.findChild("id").data();
471
                showStatusMessage(tr("Thread %1 selected").arg(_(id)), 1000);
472
                //"{id="2"}"
473
474
            } else if (m_isMacGdb && asyncClass == "shlibs-updated") {
                // Apple's gdb announces updated libs.
475
                invalidateSourcesList();
476
477
            } else if (m_isMacGdb && asyncClass == "shlibs-added") {
                // Apple's gdb announces added libs.
478
479
480
481
482
                // {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=""}}
483
                invalidateSourcesList();
484
485
486
487
488
            } 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",
489
                // line="1584",shlib="/../libFoo_debug.dylib",times="0"}
490
491
                const GdbMi bkpt = result.findChild("bkpt");
                const int number = bkpt.findChild("number").data().toInt();
492
                BreakpointData *data = breakHandler()->findBreakpointByNumber(number);
493
                setBreakpointDataFromOutput(data, bkpt);
494
                breakHandler()->updateMarkers();
495
            } else {
496
                qDebug() << "IGNORED ASYNC OUTPUT"
hjk's avatar
hjk committed
497
                    << asyncClass << result.toString();
498
            }
499
500
            break;
        }
501

502
        case '~': {
503
504
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
505
506

            // Parse pid from noise.
507
            if (!inferiorPid()) {
508
509
510
511
                // 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
512
513
514
                // Mac: [Switching to process 9294 local thread 0x2e03] or
                // [Switching to process 31773]
                static QRegExp re3(_("Switching to process ([0-9]+)"));
515
516
517
518
519
                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));
520
521
                else if (re3.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re3.cap(1));
522
            }
523
524

            // Show some messages to give the impression something happens.
525
            if (data.startsWith("Reading symbols from ")) {
526
                showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
527
                invalidateSourcesList();
528
529
530
            } else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
                if (data.endsWith('\n'))
                    data.chop(1);
531
                showStatusMessage(_(data), 1000);
532
            }
533
534
            break;
        }
535

536
        case '@': {
537
            readDebugeeOutput(GdbMi::parseCString(from, to));
538
            break;
con's avatar
con committed
539
540
        }

541
542
543
544
545
546
        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:"))
547
                showMessage(_(data.mid(9)), AppStuff); // cut "warning: "
con's avatar
con committed
548
549
550
            break;
        }

551
        case '^': {
hjk's avatar
hjk committed
552
            GdbResponse response;
con's avatar
con committed
553

hjk's avatar
hjk committed
554
            response.token = token;
con's avatar
con committed
555

556
557
558
            for (inner = from; inner != to; ++inner)
                if (*inner < 'a' || *inner > 'z')
                    break;
con's avatar
con committed
559

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
560
            QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
561
            if (resultClass == "done") {
hjk's avatar
hjk committed
562
                response.resultClass = GdbResultDone;
563
            } else if (resultClass == "running") {
hjk's avatar
hjk committed
564
565
566
567
                if (m_progress) {
                    m_progress->setProgressValue(100);
                    m_progress->reportFinished();
                }
568
                if (state() == InferiorStopped) { // Result of manual command.
569
                    resetLocation();
570
571
572
                    setTokenBarrier();
                    setState(InferiorRunningRequested);
                }
573
574
                setState(InferiorRunning);
                showStatusMessage(tr("Running..."));
hjk's avatar
hjk committed
575
                response.resultClass = GdbResultRunning;
576
            } else if (resultClass == "connected") {
hjk's avatar
hjk committed
577
                response.resultClass = GdbResultConnected;
578
            } else if (resultClass == "error") {
hjk's avatar
hjk committed
579
                response.resultClass = GdbResultError;
580
            } else if (resultClass == "exit") {
hjk's avatar
hjk committed
581
                response.resultClass = GdbResultExit;
582
            } else {
hjk's avatar
hjk committed
583
                response.resultClass = GdbResultUnknown;
584
            }
con's avatar
con committed
585

586
587
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
588
589
                if (*from == ',') {
                    ++from;
hjk's avatar
hjk committed
590
591
592
                    response.data.parseTuple_helper(from, to);
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
hjk's avatar
hjk committed
593
594
                } else {
                    // Archer has this
hjk's avatar
hjk committed
595
596
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
con's avatar
con committed
597
598
                }
            }
599
600
601

            //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
            //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
hjk's avatar
hjk committed
602
            response.data.setStreamOutput("logstreamoutput",
603
                m_pendingLogStreamOutput);
hjk's avatar
hjk committed
604
            response.data.setStreamOutput("consolestreamoutput",
605
606
607
608
                m_pendingConsoleStreamOutput);
            m_pendingLogStreamOutput.clear();
            m_pendingConsoleStreamOutput.clear();

609
            handleResultRecord(&response);
610
611
612
613
614
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
615
616
617
618
619
620
        }
    }
}

void GdbEngine::readGdbStandardError()
{
ck's avatar
ck committed
621
    QByteArray err = gdbProc()->readAllStandardError();
622
    showMessage(_("UNEXPECTED GDB STDERR: " + err));
623
624
    if (err == "Undefined command: \"bb\".  Try \"help\".\n")
        return;
625
626
    if (err.startsWith("BFD: reopening"))
        return;
627
    qWarning() << "Unexpected gdb stderr:" << err;
con's avatar
con committed
628
629
630
631
}

void GdbEngine::readGdbStandardOutput()
{
632
    if (m_commandTimer->isActive())
633
634
        m_commandTimer->start(); // Retrigger

635
636
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
637

ck's avatar
ck committed
638
    m_inbuffer.append(gdbProc()->readAllStandardOutput());
con's avatar
con committed
639

640
641
642
643
    // This can trigger when a dialog starts a nested event loop
    if (m_busy)
        return;

644
645
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
646
        int end = m_inbuffer.indexOf('\n', scan);
647
648
649
650
651
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
652
        scan = newstart;
653
654
        if (end == start)
            continue;
Tobias Hunger's avatar
Tobias Hunger committed
655
#        if defined(Q_OS_WIN)
656
657
658
659
660
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
Tobias Hunger's avatar
Tobias Hunger committed
661
#        endif
662
        m_busy = true;
663
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
664
        m_busy = false;
con's avatar
con committed
665
    }
666
    m_inbuffer.clear();
con's avatar
con committed
667
668
669
670
}

void GdbEngine::interruptInferior()
{
671
    QTC_ASSERT(state() == InferiorRunning, qDebug() << state(); return);
con's avatar
con committed
672

hjk's avatar
hjk committed
673
674
675
    setState(InferiorStopping);
    showStatusMessage(tr("Stop requested..."), 5000);

676
    showMessage(_("TRYING TO INTERRUPT INFERIOR"));
hjk's avatar
hjk committed
677
    m_gdbAdapter->interruptInferior();
con's avatar
con committed
678
679
}

680
681
682
void GdbEngine::interruptInferiorTemporarily()
{
    interruptInferior();
683
    foreach (const GdbCommand &cmd, m_commandsToRunOnTemporaryBreak) {
684
685
686
687
        if (cmd.flags & LosesChild) {
            setState(InferiorStopping_Kill);
            break;
        }
688
    }
689
690
}

con's avatar
con committed
691
692
void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
693
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
694
    if (pid == 0) {
695
        showMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
696
697
        return;
    }
698
    if (pid == inferiorPid())
con's avatar
con committed
699
        return;
700

701
702
    showMessage(_("FOUND PID %1").arg(pid));
    notifyInferiorPid(pid);
con's avatar
con committed
703
704
}

705
void GdbEngine::postCommand(const QByteArray &command, AdapterCallback callback,
hjk's avatar
hjk committed
706
                            const char *callbackName, const QVariant &cookie)
707
708
709
710
{
    postCommand(command, NoFlags, callback, callbackName, cookie);
}

711
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
712
713
                            AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
hjk's avatar
hjk committed
714
715
716
{
    GdbCommand cmd;
    cmd.command = command;
717
    cmd.flags = flags;
hjk's avatar
hjk committed
718
719
720
721
722
723
    cmd.adapterCallback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

724
void GdbEngine::postCommand(const QByteArray &command, GdbCommandCallback callback,
725
726
                            const char *callbackName, const QVariant &cookie)
{
727
    postCommand(command, NoFlags, callback, callbackName, cookie);
728
729
}

730
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
731
732
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
hjk's avatar
hjk committed
733
734
735
736
737
738
739
740
741
742
743
{
    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
744
{
hjk's avatar
hjk committed
745
    if (!stateAcceptsGdbCommands(state())) {
746
        PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: " + cmd.command));
747
        showMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
748
            .arg(_(cmd.command)).arg(state()));
con's avatar
con committed
749
750
751
        return;
    }

752
753
    if (cmd.flags & RebuildWatchModel) {
        ++m_pendingWatchRequests;
754
        PENDING_DEBUG("   WATCH MODEL:" << cmd.command << "=>" << cmd.callbackName
755
                      << "INCREMENTS PENDING TO" << m_pendingWatchRequests);
756
757
758
759
    } 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
760
    } else {
761
        PENDING_DEBUG("   OTHER (IN):" << cmd.command << "=>" << cmd.callbackName
762
763
                      << "LEAVES PENDING WATCH AT" << m_pendingWatchRequests
                      << "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
con's avatar
con committed
764
765
    }

766
767
768
769
770
771
    // FIXME: clean up logic below
    if (cmd.flags & Immediate) {
        // This should always be sent.
        flushCommand(cmd);
    } else if ((cmd.flags & NeedsStop)
            || !m_commandsToRunOnTemporaryBreak.isEmpty()) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
772
        if (state() == InferiorStopped || state() == InferiorUnrunnable
773
            || state() == InferiorStarting || state() == AdapterStarted) {
hjk's avatar
hjk committed
774
775
776
777
            // Can be safely sent now.
            flushCommand(cmd);
        } else {
            // Queue the commands that we cannot send at once.
778
            showMessage(_("QUEUING COMMAND " + cmd.command));
hjk's avatar
hjk committed
779
            m_commandsToRunOnTemporaryBreak.append(cmd);
780
            if (state() == InferiorStopping) {
781
782
                if (cmd.flags & LosesChild)
                    setState(InferiorStopping_Kill);
783
                showMessage(_("CHILD ALREADY BEING INTERRUPTED. STILL HOPING."));
784
785
                // Calling shutdown() here breaks all situations where two
                // NeedsStop commands are issued in quick succession.
786
            } else if (state() == InferiorStopping_Kill) {
787
                showMessage(_("CHILD ALREADY BEING INTERRUPTED (KILL PENDING)"));
788
789
                // FIXME
                shutdown();
790
            } else if (state() == InferiorRunningRequested) {
791
792
                if (cmd.flags & LosesChild)
                    setState(InferiorRunningRequested_Kill);
793
                showMessage(_("RUNNING REQUESTED; POSTPONING INTERRUPT"));
794
            } else if (state() == InferiorRunningRequested_Kill) {
795
                showMessage(_("RUNNING REQUESTED; POSTPONING INTERRUPT (KILL PENDING)"));
796
            } else if (state() == InferiorRunning) {
797
                showStatusMessage(tr("Stopping temporarily"), 1000);
798
                interruptInferiorTemporarily();
799
800
            } else {
                qDebug() << "ATTEMPTING TO QUEUE COMMAND IN INAPPROPRIATE STATE" << state();
801
            }
hjk's avatar
hjk committed
802
        }
hjk's avatar
hjk committed
803
    } else if (!cmd.command.isEmpty()) {
804
        flushCommand(cmd);
con's avatar
con committed
805
806
807
    }
}

808
809
void GdbEngine::flushQueuedCommands()
{
810
    showStatusMessage(tr("Processing queued commands"), 1000);
811
812
    while (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
        GdbCommand cmd = m_commandsToRunOnTemporaryBreak.takeFirst();
813
        showMessage(_("RUNNING QUEUED COMMAND " + cmd.command + ' '
814
            + cmd.callbackName));
815
816
817
818
        flushCommand(cmd);
    }
}

hjk's avatar
hjk committed
819
void GdbEngine::flushCommand(const GdbCommand &cmd0)
820
{
hjk's avatar
hjk committed
821
    GdbCommand cmd = cmd0;
hjk's avatar
hjk committed
822
    if (state() == DebuggerNotReady) {
823
824
        showMessage(_(cmd.command), LogInput);
        showMessage(_("GDB PROCESS NOT RUNNING, PLAIN CMD IGNORED: " + cmd.command));
825
826
827
        return;
    }

828
    ++currentToken();
829
    cmd.postTime = QTime::currentTime();
830
    m_cookieForToken[currentToken()] = cmd;
831
    cmd.command = QByteArray::number(currentToken()) + cmd.command;
832
    showMessage(_(cmd.command), LogInput);
833

834
    m_gdbAdapter->write(cmd.command + "\r\n");
835

836
837
    m_commandTimer->start();

838
839
    if (cmd.flags & LosesChild)
        setState(InferiorShuttingDown);
840
841
}