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"
hjk's avatar
hjk committed
34
#include "trkgdbadapter.h"
con's avatar
con committed
35

36
#include "watchutils.h"
37
#include "debuggeractions.h"
38
#include "debuggeragents.h"
con's avatar
con committed
39
40
#include "debuggerconstants.h"
#include "debuggermanager.h"
41
#include "debuggertooltip.h"
con's avatar
con committed
42
43
44
45
46
47
48
49
#include "gdbmi.h"
#include "procinterrupt.h"

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

52
#include "debuggerdialogs.h"
con's avatar
con committed
53

hjk's avatar
hjk committed
54
#include <utils/qtcassert.h>
55
#include <texteditor/itexteditor.h>
56
#include <coreplugin/icore.h>
hjk's avatar
hjk committed
57

con's avatar
con committed
58
59
60
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
61
#include <QtCore/QMetaObject>
con's avatar
con committed
62
63
#include <QtCore/QTime>
#include <QtCore/QTimer>
64
#include <QtCore/QTextStream>
con's avatar
con committed
65
66

#include <QtGui/QAction>
67
#include <QtCore/QCoreApplication>
con's avatar
con committed
68
69
70
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
71
72
#include <QtGui/QDialogButtonBox>
#include <QtGui/QPushButton>
73
#ifdef Q_OS_WIN
74
#    include "shared/sharedlibraryinjector.h"
75
#endif
con's avatar
con committed
76

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
77
#ifdef Q_OS_UNIX
con's avatar
con committed
78
79
80
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
81
#include <ctype.h>
con's avatar
con committed
82

83
84
namespace Debugger {
namespace Internal {
con's avatar
con committed
85
86
87
using namespace Debugger::Constants;

//#define DEBUG_PENDING  1
hjk's avatar
hjk committed
88
//#define DEBUG_SUBITEM  1
con's avatar
con committed
89
90
91
92

#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
Roberto Raggi's avatar
Roberto Raggi committed
93
#   define PENDING_DEBUG(s)
con's avatar
con committed
94
95
#endif

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
96
97
#define STRINGIFY_INTERNAL(x) #x
#define STRINGIFY(x) STRINGIFY_INTERNAL(x)
98
99
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

con's avatar
con committed
100
101
102
103
104
105
static int &currentToken()
{
    static int token = 0;
    return token;
}

106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
// reads a MI-encoded item frome the consolestream
static bool parseConsoleStream(const GdbResultRecord &record, GdbMi *contents)
{
    GdbMi output = record.data.findChild("consolestreamoutput");
    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();
}

static QByteArray parsePlainConsoleStream(const GdbResultRecord &record)
{
    GdbMi output = record.data.findChild("consolestreamoutput");
    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);
}

hjk's avatar
hjk committed
142
143
///////////////////////////////////////////////////////////////////////
//
hjk's avatar
hjk committed
144
// PlainGdbAdapter
hjk's avatar
hjk committed
145
146
147
//
///////////////////////////////////////////////////////////////////////

hjk's avatar
hjk committed
148
void PlainGdbAdapter::attach(GdbEngine *engine) const
hjk's avatar
hjk committed
149
150
151
152
153
154
155
{
    QFileInfo fi(engine->startParameters().executable);
    QString fileName = fi.absoluteFilePath();
    engine->postCommand(_("-file-exec-and-symbols ") + fileName,
        &GdbEngine::handleFileExecAndSymbols, "handleFileExecAndSymbols");
}

con's avatar
con committed
156
157
158
159
160
161
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

hjk's avatar
hjk committed
162
GdbEngine::GdbEngine(DebuggerManager *parent, AbstractGdbAdapter *gdbAdapter) :
163
#ifdef Q_OS_WIN // Do injection loading with MinGW (call loading does not work with 64bit)
164
    m_dumperInjectionLoad(true),
165
#else
166
    m_dumperInjectionLoad(false),
167
#endif
168
    q(parent),
169
    qq(parent->engineInterface())
con's avatar
con committed
170
{
hjk's avatar
hjk committed
171
    m_gdbAdapter = gdbAdapter;
172
    m_stubProc.setMode(Core::Utils::ConsoleProcess::Debug);
173
174
175
#ifdef Q_OS_UNIX
    m_stubProc.setSettings(Core::ICore::instance()->settings());
#endif
176
177
    initializeVariables();
    initializeConnections();
con's avatar
con committed
178
179
180
181
}

GdbEngine::~GdbEngine()
{
hjk's avatar
hjk committed
182
    // prevent sending error messages afterwards
hjk's avatar
hjk committed
183
184
    m_gdbAdapter->disconnect(this);
    delete m_gdbAdapter;
con's avatar
con committed
185
186
}

187
void GdbEngine::initializeConnections()
con's avatar
con committed
188
189
{
    // Gdb Process interaction
hjk's avatar
hjk committed
190
    connect(m_gdbAdapter, SIGNAL(error(QProcess::ProcessError)),
191
        this, SLOT(gdbProcError(QProcess::ProcessError)));
hjk's avatar
hjk committed
192
    connect(m_gdbAdapter, SIGNAL(readyReadStandardOutput()),
193
        this, SLOT(readGdbStandardOutput()));
hjk's avatar
hjk committed
194
    connect(m_gdbAdapter, SIGNAL(readyReadStandardError()),
195
        this, SLOT(readGdbStandardError()));
hjk's avatar
hjk committed
196
    connect(m_gdbAdapter, SIGNAL(finished(int, QProcess::ExitStatus)),
197
        q, SLOT(exitDebugger()));
hjk's avatar
hjk committed
198
    connect(m_gdbAdapter, SIGNAL(started()),
hjk's avatar
hjk committed
199
        this, SLOT(startDebugger2()));
200
201
202
203
204
205
206
207
208
209

    connect(&m_stubProc, SIGNAL(processError(QString)),
        this, SLOT(stubError(QString)));
    connect(&m_stubProc, SIGNAL(processStarted()),
        this, SLOT(stubStarted()));
    connect(&m_stubProc, SIGNAL(wrapperStopped()),
        q, SLOT(exitDebugger()));

    connect(&m_uploadProc, SIGNAL(error(QProcess::ProcessError)),
        this, SLOT(uploadProcError(QProcess::ProcessError)));
210
211
212
213
    connect(&m_uploadProc, SIGNAL(readyReadStandardOutput()),
        this, SLOT(readUploadStandardOutput()));
    connect(&m_uploadProc, SIGNAL(readyReadStandardError()),
        this, SLOT(readUploadStandardError()));
214

con's avatar
con committed
215
    // Output
216
    connect(&m_outputCollector, SIGNAL(byteDelivery(QByteArray)),
217
        this, SLOT(readDebugeeOutput(QByteArray)));
con's avatar
con committed
218

219
220
    connect(this, SIGNAL(gdbOutputAvailable(int,QString)),
        q, SLOT(showDebuggerOutput(int,QString)),
con's avatar
con committed
221
        Qt::QueuedConnection);
222
223
    connect(this, SIGNAL(gdbInputAvailable(int,QString)),
        q, SLOT(showDebuggerInput(int,QString)),
con's avatar
con committed
224
        Qt::QueuedConnection);
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
225
226
    connect(this, SIGNAL(applicationOutputAvailable(QString)),
        q, SLOT(showApplicationOutput(QString)),
con's avatar
con committed
227
        Qt::QueuedConnection);
228

229
    // FIXME: These trigger even if the engine is not active
230
231
232
233
234
235
    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()));
con's avatar
con committed
236
237
}

238
239
void GdbEngine::initializeVariables()
{
240
    m_debuggingHelperState = DebuggingHelperUninitialized;
241
    m_gdbVersion = 100;
hjk's avatar
hjk committed
242
    m_gdbBuildVersion = -1;
243
244
245
246
247
248
249
250
251

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

    m_modulesListOutdated = true;
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
    m_pendingRequests = 0;
252
    m_autoContinue = false;
253
    m_waitingForFirstBreakpointToBeHit = false;
254
    m_commandsToRunOnTemporaryBreak.clear();
255
    m_cookieForToken.clear();
256
257
258
259
260
261
262
263
264
265
    m_customOutputForToken.clear();

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

    m_inbuffer.clear();

    m_currentFunctionArgs.clear();
    m_currentFrame.clear();
266
    m_dumperHelper.clear();
267
268
269
270

    // FIXME: unhandled:
    //m_outputCodecState = QTextCodec::ConverterState();
    //OutputCollector m_outputCollector;
hjk's avatar
hjk committed
271
    //QProcess m_gdbAdapter;
272
273
    //QProcess m_uploadProc;
    //Core::Utils::ConsoleProcess m_stubProc;
274
275
}

con's avatar
con committed
276
277
278
void GdbEngine::gdbProcError(QProcess::ProcessError error)
{
    QString msg;
279
    bool kill = true;
con's avatar
con committed
280
281
    switch (error) {
        case QProcess::FailedToStart:
282
            kill = false;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
283
            msg = 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));
287
            emitStartFailed();
con's avatar
con committed
288
289
            break;
        case QProcess::Crashed:
290
            kill = false;
con's avatar
con committed
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
            msg = tr("The Gdb process crashed some time after starting "
                "successfully.");
            break;
        case QProcess::Timedout:
            msg = tr("The last waitFor...() function timed out. "
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
            break;
        case QProcess::WriteError:
            msg = tr("An error occurred when attempting to write "
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
            break;
        case QProcess::ReadError:
            msg = tr("An error occurred when attempting to read from "
                "the Gdb process. For example, the process may not be running.");
            break;
        default:
            msg = tr("An unknown error in the Gdb process occurred. "
                "This is the default return value of error().");
    }

313
    q->showStatusMessage(msg);
con's avatar
con committed
314
315
    QMessageBox::critical(q->mainWindow(), tr("Error"), msg);
    // act as if it was closed by the core
316
317
    if (kill)
        q->exitDebugger();
con's avatar
con committed
318
319
}

320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
void GdbEngine::uploadProcError(QProcess::ProcessError error)
{
    QString msg;
    switch (error) {
        case QProcess::FailedToStart:
            msg = tr("The upload process failed to start. Either the "
                "invoked script '%1' is missing, or you may have insufficient "
                "permissions to invoke the program.")
                .arg(theDebuggerStringSetting(GdbLocation));
            break;
        case QProcess::Crashed:
            msg = tr("The upload process crashed some time after starting "
                "successfully.");
            break;
        case QProcess::Timedout:
            msg = tr("The last waitFor...() function timed out. "
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
            break;
        case QProcess::WriteError:
            msg = tr("An error occurred when attempting to write "
                "to the upload process. For example, the process may not be running, "
                "or it may have closed its input channel.");
            break;
        case QProcess::ReadError:
            msg = tr("An error occurred when attempting to read from "
                "the upload process. For example, the process may not be running.");
            break;
        default:
            msg = tr("An unknown error in the upload process occurred. "
                "This is the default return value of error().");
    }

    q->showStatusMessage(msg);
    QMessageBox::critical(q->mainWindow(), tr("Error"), msg);
}

357
358
359
void GdbEngine::readUploadStandardOutput()
{
    QByteArray ba = m_uploadProc.readAllStandardOutput();
360
    gdbOutputAvailable(LogOutput, QString::fromLocal8Bit(ba, ba.length()));
361
362
363
364
365
}

void GdbEngine::readUploadStandardError()
{
    QByteArray ba = m_uploadProc.readAllStandardError();
366
    gdbOutputAvailable(LogError, QString::fromLocal8Bit(ba, ba.length()));
367
368
}

con's avatar
con committed
369
370
371
372
#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
373
    Q_UNUSED(to)
con's avatar
con committed
374
375
376
377
378
379
380
381
382
383
384
    // 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

385
386
387
388
389
390
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
    emit applicationOutputAvailable(m_outputCodec->toUnicode(
            data.constData(), data.length(), &m_outputCodecState));
}

hjk's avatar
hjk committed
391
392
void GdbEngine::debugMessage(const QString &msg)
{
393
    emit gdbOutputAvailable(LogDebug, msg);
hjk's avatar
hjk committed
394
395
}

396
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
397
398
399
{
    static QTime lastTime;

400
    if (theDebuggerBoolSetting(LogTimeStamps))
401
        emit gdbOutputAvailable(LogTime, currentTime());
402
    emit gdbOutputAvailable(LogOutput, QString::fromLocal8Bit(buff, buff.length()));
con's avatar
con committed
403
404
405
406
407

#if 0
    qDebug() // << "#### start response handling #### "
        << currentTime()
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
408
409
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
410
        << "size:" << buff.size();
con's avatar
con committed
411
#else
412
    //qDebug() << "buf:" << buff;
con's avatar
con committed
413
414
415
416
#endif

    lastTime = QTime::currentTime();

417
418
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
419

420
421
422
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
423

424
425
426
427
    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
428
            break;
429
430
431
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
432
        //qDebug() << "found token" << token;
433
    }
con's avatar
con committed
434

435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
    // next char decides kind of record
    const char c = *from++;
    //qDebug() << "CODE:" << c;
    switch (c) {
        case '*':
        case '+':
        case '=': {
            QByteArray asyncClass;
            for (; from != to; ++from) {
                const char c = *from;
                if (!isNameChar(c))
                    break;
                asyncClass += *from;
            }
            //qDebug() << "ASYNCCLASS" << asyncClass;
con's avatar
con committed
450

451
452
453
            GdbMi record;
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
454
                if (*from != ',') {
hjk's avatar
hjk committed
455
456
                    // happens on archer where we get 
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb) 
457
                    record.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
458
459
460
461
462
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
463
                    //qDebug() << "parsed response:" << data.toString();
hjk's avatar
hjk committed
464
465
                    record.m_children += data;
                    record.m_type = GdbMi::Tuple;
con's avatar
con committed
466
467
                }
            }
468
469
470
471
            if (asyncClass == "stopped") {
                handleAsyncOutput(record);
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
472
473
474
475
            } 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",
476
                // symbols-loaded="0"
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
477
                QByteArray id = record.findChild("id").data();
478
                if (!id.isEmpty())
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
479
                    q->showStatusMessage(tr("Library %1 loaded.").arg(_(id)));
hjk's avatar
hjk committed
480
481
482
483
            } 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"
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
484
485
                QByteArray id = record.findChild("id").data();
                q->showStatusMessage(tr("Library %1 unloaded.").arg(_(id)));
486
487
            } else if (asyncClass == "thread-group-created") {
                // Archer has "{id="28902"}" 
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
488
489
                QByteArray id = record.findChild("id").data();
                q->showStatusMessage(tr("Thread group %1 created.").arg(_(id)));
490
491
            } else if (asyncClass == "thread-created") {
                //"{id="1",group-id="28902"}" 
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
492
493
                QByteArray id = record.findChild("id").data();
                q->showStatusMessage(tr("Thread %1 created.").arg(_(id)));
494
495
            } else if (asyncClass == "thread-group-exited") {
                // Archer has "{id="28902"}" 
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
496
497
                QByteArray id = record.findChild("id").data();
                q->showStatusMessage(tr("Thread group %1 exited.").arg(_(id)));
498
499
            } else if (asyncClass == "thread-exited") {
                //"{id="1",group-id="28902"}" 
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
500
501
                QByteArray id = record.findChild("id").data();
                QByteArray groupid = record.findChild("group-id").data();
502
                q->showStatusMessage(tr("Thread %1 in group %2 exited.")
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
503
                    .arg(_(id)).arg(_(groupid)));
hjk's avatar
hjk committed
504
            } else if (asyncClass == "thread-selected") {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
505
506
                QByteArray id = record.findChild("id").data();
                q->showStatusMessage(tr("Thread %1 selected.").arg(_(id)));
hjk's avatar
hjk committed
507
                //"{id="2"}" 
508
            #if defined(Q_OS_MAC)
509
510
511
512
513
514
515
516
517
518
519
            } 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 {
520
                qDebug() << "IGNORED ASYNC OUTPUT"
521
                    << asyncClass << record.toString();
522
            }
523
524
            break;
        }
525

526
        case '~': {
527
528
529
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
            if (data.startsWith("Reading symbols from ")) {
530
                q->showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))));
531
            }
532
533
            break;
        }
534

535
        case '@': {
536
537
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingTargetStreamOutput += data;
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:"))
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
547
                qq->showApplicationOutput(_(data.mid(9))); // cut "warning: "
con's avatar
con committed
548
549
550
            break;
        }

551
552
        case '^': {
            GdbResultRecord record;
con's avatar
con committed
553

554
            record.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
562
563
564
565
566
567
568
569
570
571
572
            if (resultClass == "done")
                record.resultClass = GdbResultDone;
            else if (resultClass == "running")
                record.resultClass = GdbResultRunning;
            else if (resultClass == "connected")
                record.resultClass = GdbResultConnected;
            else if (resultClass == "error")
                record.resultClass = GdbResultError;
            else if (resultClass == "exit")
                record.resultClass = GdbResultExit;
            else
                record.resultClass = GdbResultUnknown;
con's avatar
con committed
573

574
575
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
576
577
578
579
580
581
582
583
584
                if (*from == ',') {
                    ++from;
                    record.data.parseTuple_helper(from, to);
                    record.data.m_type = GdbMi::Tuple;
                    record.data.m_name = "data";
                } else {
                    // Archer has this
                    record.data.m_type = GdbMi::Tuple;
                    record.data.m_name = "data";
con's avatar
con committed
585
586
                }
            }
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611

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

            handleResultRecord(record);
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
612
613
614
615
        }
    }
}

616
void GdbEngine::handleStubAttached(const GdbResultRecord &, const QVariant &)
617
618
619
{
    qq->notifyInferiorStopped();
    handleAqcuiredInferior();
620
    m_autoContinue = true;
621
622
623
624
}

void GdbEngine::stubStarted()
{
625
626
627
    const qint64 attachedPID = m_stubProc.applicationPID();
    qq->notifyInferiorPidChanged(attachedPID);
    postCommand(_("attach %1").arg(attachedPID), CB(handleStubAttached));
628
629
630
631
632
633
634
}

void GdbEngine::stubError(const QString &msg)
{
    QMessageBox::critical(q->mainWindow(), tr("Debugger Error"), msg);
}

con's avatar
con committed
635
636
void GdbEngine::readGdbStandardError()
{
hjk's avatar
hjk committed
637
    qWarning() << "Unexpected gdb stderr:" << m_gdbAdapter->readAllStandardError();
con's avatar
con committed
638
639
640
641
}

void GdbEngine::readGdbStandardOutput()
{
642
643
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
644

hjk's avatar
hjk committed
645
    m_inbuffer.append(m_gdbAdapter->readAllStandardOutput());
con's avatar
con committed
646

647
648
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
649
        int end = m_inbuffer.indexOf('\n', scan);
650
651
652
653
654
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
655
        scan = newstart;
656
657
        if (end == start)
            continue;
658
        #if defined(Q_OS_WIN)
659
660
661
662
663
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
664
        #endif
665
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
con's avatar
con committed
666
    }
667
    m_inbuffer.clear();
con's avatar
con committed
668
669
670
671
}

void GdbEngine::interruptInferior()
{
672
    qq->notifyInferiorStopRequested();
673

hjk's avatar
hjk committed
674
    if (m_gdbAdapter->state() == QProcess::NotRunning) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
675
        debugMessage(_("TRYING TO INTERRUPT INFERIOR WITHOUT RUNNING GDB"));
676
        qq->notifyInferiorExited();
con's avatar
con committed
677
        return;
678
    }
con's avatar
con committed
679

680
    if (q->startMode() == StartRemote) {
681
        postCommand(_("-exec-interrupt"));
682
683
684
        return;
    }

685
686
    const qint64 attachedPID = q->inferiorPid();
    if (attachedPID <= 0) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
687
        debugMessage(_("TRYING TO INTERRUPT INFERIOR BEFORE PID WAS OBTAINED"));
con's avatar
con committed
688
689
690
        return;
    }

691
692
    if (!interruptProcess(attachedPID))
        debugMessage(_("CANNOT INTERRUPT %1").arg(attachedPID));
con's avatar
con committed
693
694
695
696
}

void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
697
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
698
    if (pid == 0) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
699
        debugMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
700
701
        return;
    }
702
    if (pid == q->inferiorPid())
con's avatar
con committed
703
        return;
704
705
    debugMessage(_("FOUND PID %1").arg(pid));    

Roberto Raggi's avatar
Roberto Raggi committed
706
    qq->notifyInferiorPidChanged(pid);
707
708
    if (m_dumperInjectionLoad)
        tryLoadDebuggingHelpers();
con's avatar
con committed
709
710
}

711
void GdbEngine::postCommand(const QString &command, GdbCommandCallback callback,
712
713
                            const char *callbackName, const QVariant &cookie)
{
714
    postCommand(command, NoFlags, callback, callbackName, cookie);
715
716
}

717
void GdbEngine::postCommand(const QString &command, GdbCommandFlags flags,
718
719
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
con's avatar
con committed
720
{
hjk's avatar
hjk committed
721
    if (m_gdbAdapter->state() == QProcess::NotRunning) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
722
        debugMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: ") + command);
con's avatar
con committed
723
724
725
        return;
    }

726
    if (flags & RebuildModel) {
con's avatar
con committed
727
        ++m_pendingRequests;
728
        PENDING_DEBUG("   CALLBACK" << callbackName << "INCREMENTS PENDING TO:"
con's avatar
con committed
729
730
            << m_pendingRequests << command);
    } else {
731
        PENDING_DEBUG("   UNKNOWN CALLBACK" << callbackName << "LEAVES PENDING AT:"
con's avatar
con committed
732
733
734
            << m_pendingRequests << command);
    }

735
    GdbCommand cmd;
con's avatar
con committed
736
    cmd.command = command;
737
738
739
    cmd.flags = flags;
    cmd.callback = callback;
    cmd.callbackName = callbackName;
con's avatar
con committed
740
741
    cmd.cookie = cookie;

742
    if ((flags & NeedsStop) && q->status() != DebuggerInferiorStopped
743
744
745
            && q->status() != DebuggerProcessStartingUp) {
        // queue the commands that we cannot send at once
        QTC_ASSERT(q->status() == DebuggerInferiorRunning,
746
            qDebug() << "STATUS:" << q->status());
747
        q->showStatusMessage(tr("Stopping temporarily."));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
748
        debugMessage(_("QUEUING COMMAND ") + cmd.command);
749
750
751
        m_commandsToRunOnTemporaryBreak.append(cmd);
        interruptInferior();
    } else if (!command.isEmpty()) {
752
        flushCommand(cmd);
con's avatar
con committed
753
754
755
    }
}

756
757
758
void GdbEngine::flushCommand(GdbCommand &cmd)
{
    ++currentToken();
759
    cmd.postTime = QTime::currentTime();
760
761
    m_cookieForToken[currentToken()] = cmd;
    cmd.command = QString::number(currentToken()) + cmd.command;
762
    if (cmd.flags & EmbedToken)
763
764
        cmd.command = cmd.command.arg(currentToken());

765
    emit gdbInputAvailable(LogInput, cmd.command);
766
    executeDebuggerCommand(cmd.command);
767
768
}

con's avatar
con committed
769
770
void GdbEngine::handleResultRecord(const GdbResultRecord &record)
{
771
772
    //qDebug() << "TOKEN:" << record.token
    //    << " ACCEPTABLE:" << m_oldestAcceptableToken;
con's avatar
con committed
773
774
775
776
777
778
779
    //qDebug() << "";
    //qDebug() << "\nRESULT" << record.token << record.toString();

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

780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
    if (!m_cookieForToken.contains(token)) {
        // In theory this should not happen, in practice it does.
        debugMessage(_("COOKIE FOR TOKEN %1 ALREADY EATEN. "
            "TWO RESPONSES FOR ONE COMMAND?").arg(token));
        // 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"
        if (record.resultClass == GdbResultError) {
            QByteArray msg = record.data.findChild("msg").data();
            QMessageBox::critical(q->mainWindow(), tr("Error"),
                tr("Executable failed:\n") + QString::fromLocal8Bit(msg));
            q->showStatusMessage(tr("Process failed to start."));
            exitDebugger();
            //qq->notifyInferiorStopped();
            //qq->notifyInferiorExited();
        }
        return;
    }

799
    GdbCommand cmd = m_cookieForToken.take(token);
800
801
802
803
804
    if (theDebuggerBoolSetting(LogTimeStamps)) {
        emit gdbOutputAvailable(LogTime, _("Response time: %1: %2 s")
            .arg(cmd.command)
            .arg(cmd.postTime.msecsTo(QTime::currentTime()) / 1000.));
    }
con's avatar
con committed
805

806
    if (record.token < m_oldestAcceptableToken && (cmd.flags & Discardable)) {
807
        //qDebug() << "### SKIPPING OLD RESULT" << record.toString();
808
        //QMessageBox::information(q->mainWindow(), tr("Skipped"), "xxx");
con's avatar
con committed
809
810
811
812
        return;
    }

#if 0
813
    qDebug() << "# handleOutput,"
hjk's avatar
hjk committed
814
        << "cmd name:" << cmd.callbackName
815
        << " cmd synchronized:" << cmd.synchronized
con's avatar
con committed
816
817
818
819
820
        << "\n record: " << record.toString();
#endif

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

821
822
    if (cmd.callback)
        (this->*(cmd.callback))(record, cmd.cookie);
con's avatar
con committed
823

824
    if (cmd.flags & RebuildModel) {
con's avatar
con committed
825
        --m_pendingRequests;
hjk's avatar
hjk committed
826
        PENDING_DEBUG("   TYPE " << cmd.callbackName << " DECREMENTS PENDING TO: "
con's avatar
con committed
827
            << m_pendingRequests << cmd.command);
828
        if (m_pendingRequests <= 0) {
hjk's avatar
hjk committed
829
830
            PENDING_DEBUG("\n\n ....  AND TRIGGERS MODEL UPDATE\n");
            rebuildModel();
831
        }
con's avatar
con committed
832
    } else {
hjk's avatar
hjk committed
833
        PENDING_DEBUG("   UNKNOWN TYPE " << cmd.callbackName << " LEAVES PENDING AT: "
con's avatar
con committed
834
835
            << m_pendingRequests << cmd.command);
    }
836
837
838
839
840
841
842
843
844
845

    // 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.
    if (m_cookieForToken.isEmpty() && m_autoContinue) {
        m_autoContinue = false;
        continueInferior();
        q->showStatusMessage(tr("Continuing after temporary stop."));
    }
con's avatar
con committed
846
847
848
849
}

void GdbEngine::executeDebuggerCommand(const QString &command)
{
hjk's avatar
hjk committed
850
    if (m_gdbAdapter->state() != QProcess::Running) {
851
        debugMessage(_("GDB PROCESS NOT RUNNING, PLAIN CMD IGNORED: ") + command);
con's avatar
con committed
852
853
854
        return;
    }

hjk's avatar
hjk committed
855
    m_gdbAdapter->write(command.toLatin1() + "\r\n");
con's avatar
con committed
856
857
}

858
void GdbEngine::handleTargetCore(const GdbResultRecord &, const QVariant &)
859
860
{
    qq->notifyInferiorStopped();
861
862
    q->showStatusMessage(tr("Core file loaded."));
    q->resetLocation();
863
    tryLoadDebuggingHelpers();
864
865
    qq->stackHandler()->setCurrentIndex(0);
    updateLocals(); // Quick shot
866
    reloadStack();
867
    if (supportsThreads())
868
        postCommand(_("-thread-list-ids"), WatchUpdate, CB(handleStackListThreads), 0);
869
    qq->reloadRegisters();
870
871
}

872
void GdbEngine::handleQuerySources(const GdbResultRecord &record, const QVariant &)
con's avatar
con committed
873
874
{
    if (record.resultClass == GdbResultDone) {
875
        QMap<QString, QString> oldShortToFull = m_shortToFullName;
con's avatar
con committed
876
877
878
879
880
881
        m_shortToFullName.clear();
        m_fullToShortName.clear();
        // "^done,files=[{file="../../../../bin/gdbmacros/gdbmacros.cpp",
        // fullname="/data5/dev/ide/main/bin/gdbmacros/gdbmacros.cpp"},
        GdbMi files = record.data.findChild("files");
        foreach (const GdbMi &item, files.children()) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
882
            QString fileName = QString::fromLocal8Bit(item.findChild("file").data());
con's avatar
con committed
883
            GdbMi fullName = item.findChild("fullname");
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
884
            QString full = QString::fromLocal8Bit(fullName.data());
con's avatar
con committed
885
886
887
888
            #ifdef Q_OS_WIN
            full = QDir::cleanPath(full);
            #endif
            if (fullName.isValid() && QFileInfo(full).isReadable()) {
889
                //qDebug() << "STORING 2:" << fileName << full;
con's avatar
con committed
890
891
892
893
                m_shortToFullName[fileName] = full;
                m_fullToShortName[full] = fileName;
            }
        }
894
895
        if (m_shortToFullName != oldShortToFull)
            qq->sourceFileWindow()->setSourceFiles(m_shortToFullName);
con's avatar
con committed
896
897
898
    }
}

899
void GdbEngine::handleInfoThreads(const GdbResultRecord &record, const QVariant &)
900
{
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
    if (record.resultClass != GdbResultDone)
        return;
    // FIXME: use something more robust
    // WIN:     [New thread 3380.0x2bc]
    //          * 3 Thread 2312.0x4d0  0x7c91120f in ?? ()
    // LINUX:   * 1 Thread 0x7f466273c6f0 (LWP 21455)  0x0000000000404542 in ...
    const QString data = _(record.data.findChild("consolestreamoutput").data());
    if (data.isEmpty())
        return;
    // check "[New thread 3380.0x2bc]"
    if (data.startsWith(QLatin1Char('['))) {
        QRegExp ren(_("^\\[New thread (\\d+)\\.0x.*"));
        Q_ASSERT(ren.isValid());
        if (ren.indexIn(data) != -1) {
            maybeHandleInferiorPidChanged(ren.cap(1));
            return;
        }
918
    }
919
920
921
922
923
    // check "* 3 Thread ..."
    QRegExp re(_("^\\*? +\\d+ +[Tt]hread (\\d+)\\.0x.* in"));
    Q_ASSERT(re.isValid());
    if (re.indexIn(data) != -1)
        maybeHandleInferiorPidChanged(re.cap(1));
924
925
}

926
void GdbEngine::handleInfoProc(const GdbResultRecord &record, const QVariant &)
con's avatar
con committed
927
928
{
    if (record.resultClass == GdbResultDone) {
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
929
        #ifdef Q_OS_MAC
con's avatar
con committed
930
        //^done,process-id="85075"
Oswald Buddenhagen's avatar
nicer    
Oswald Buddenhagen committed
931
        maybeHandleInferiorPidChanged(_(record.data.findChild("process-id").data()));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
932
        #else
con's avatar
con committed
933
        // FIXME: use something more robust
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
934
935
        QRegExp re(__("process (\\d+)"));
        QString data = __(record.data.findChild("consolestreamoutput").data());
con's avatar
con committed
936
937
938
939
940
941
        if (re.indexIn(data) != -1)
            maybeHandleInferiorPidChanged(re.cap(1));
        #endif
    }
}

942
void GdbEngine::handleInfoShared(const GdbResultRecord &record, const QVariant &cookie)
con's avatar
con committed
943
944
945
{
    if (record.resultClass == GdbResultDone) {
        // let the modules handler do the parsing
946
        handleModulesList(record, cookie);
con's avatar
con committed
947
948
949
    }
}

950
#if 0
con's avatar
con committed
951
952
953
954
955
956
957
958
959
960
void GdbEngine::handleExecJumpToLine(const GdbResultRecord &record)
{
    // FIXME: remove this special case as soon as 'jump'
    // is supported by MI
    // "&"jump /home/apoenitz/dev/work/test1/test1.cpp:242"
    // ~"Continuing at 0x4058f3."
    // ~"run1 (argc=1, argv=0x7fffb213a478) at test1.cpp:242"
    // ~"242\t x *= 2;"
    //109^done"
    qq->notifyInferiorStopped();
961
    q->showStatusMessage(tr("Jumped. Stopped."));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
962
    QByteArray output = record.data.findChild("logstreamoutput").data();
963
    if (output.isEmpty())
con's avatar
con committed
964
        return;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
965
966
967
968
969
970
971
972
973
    int idx1 = output.indexOf(' ') + 1;
    if (idx1 > 0) {
        int idx2 = output.indexOf(':', idx1);
        if (idx2 > 0) {
            QString file = QString::fromLocal8Bit(output.mid(idx1, idx2 - idx1));
            int line = output.mid(idx2 + 1).toInt();
            q->gotoLocation(file, line, true);
        }
    }
con's avatar
con committed
974
}
975
#endif
con's avatar
con committed
976

977
void GdbEngine::handleExecRunToFunction(const GdbResultRecord &record, const QVariant &)
con's avatar
con committed
978
979
980
981
982
983
984
985
{
    // FIXME: remove this special case as soon as there's a real
    // reason given when the temporary breakpoint is hit.
    // reight now we get:
    // 14*stopped,thread-id="1",frame={addr="0x0000000000403ce4",
    // func="foo",args=[{name="str",value="@0x7fff0f450460"}],
    // file="main.cpp",fullname="/tmp/g/main.cpp",line="37"}
    qq->notifyInferiorStopped();
986
    q->showStatusMessage(tr("Run to Function finished. Stopped."));
con's avatar
con committed
987
    GdbMi frame = record.data.findChild("frame");
988
989
990
991
992
    StackFrame f;
    f.file = QString::fromLocal8Bit(frame.findChild("fullname").data());
    f.line = frame.findChild("line").data().toInt();
    f.address = _(frame.findChild("addr").data());
    q->gotoLocation(f, true);
con's avatar
con committed
993
994
}

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
995
static bool isExitedReason(const QByteArray &reason)
con's avatar
con committed
996
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
997
998
999
1000
    return reason == "exited-normally"   // inferior exited normally
        || reason == "exited-signalled"  // inferior exited because of a signal
        //|| reason == "signal-received" // inferior received signal
        || reason == "exited";           // inferior exited
con's avatar
con committed
1001
1002
}

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1003
static bool isStoppedReason(const QByteArray &reason)
con's avatar
con committed
1004
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1005
1006
1007
1008
1009
1010
1011
    return reason == "function-finished"  // -exec-finish
        || reason == "signal-received"  // handled as "isExitedReason"
        || reason == "breakpoint-hit"     // -exec-continue
        || reason == "end-stepping-range" // -exec-next, -exec-step
        || reason == "location-reached"   // -exec-until
        || reason == "access-watchpoint-trigger"
        || reason == "read-watchpoint-trigger"
1012
        #ifdef Q_OS_MAC
con's avatar
con committed
1013
        || reason.isEmpty()
1014
        #endif
con's avatar
con committed
1015
1016
1017
    ;
}

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1018
1019
void GdbEngine::handleAqcuiredInferior()
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1020
    #ifdef Q_OS_WIN
1021
    postCommand(_("info thread"), CB(handleInfoThreads));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1022
    #elif defined(Q_OS_MAC)
1023
    postCommand(_("info pid"), NeedsStop, CB(handleInfoProc));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1024
1025
    #else
    postCommand(_("info proc"), CB(handleInfoProc));
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1026
    #endif