gdbengine.cpp 164 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
con's avatar
con committed
5
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
con's avatar
con committed
9
** No Commercial Usage
10
**
con's avatar
con committed
11 12 13 14
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
15
**
16
** GNU Lesser General Public License Usage
17
**
18 19 20 21 22 23
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
**
con's avatar
con committed
25 26 27 28 29 30
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
con's avatar
con committed
31
**
32
**************************************************************************/
con's avatar
con committed
33

34 35
#define QT_NO_CAST_FROM_ASCII

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

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

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

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

71
#include "logwindow.h"
con's avatar
con committed
72

73
#include <coreplugin/icore.h>
74 75 76
#include <projectexplorer/toolchain.h>
#include <texteditor/itexteditor.h>
#include <utils/qtcassert.h>
hjk's avatar
hjk committed
77

78
#include <QtCore/QCoreApplication>
con's avatar
con committed
79 80 81
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
82
#include <QtCore/QMetaObject>
con's avatar
con committed
83 84
#include <QtCore/QTime>
#include <QtCore/QTimer>
85
#include <QtCore/QTemporaryFile>
86
#include <QtCore/QTextStream>
con's avatar
con committed
87 88

#include <QtGui/QAction>
89
#include <QtGui/QDialogButtonBox>
con's avatar
con committed
90 91 92
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
93
#include <QtGui/QPushButton>
con's avatar
con committed
94

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
95
#ifdef Q_OS_UNIX
con's avatar
con committed
96 97 98
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
99
#include <ctype.h>
con's avatar
con committed
100

101

102 103
namespace Debugger {
namespace Internal {
con's avatar
con committed
104 105 106

//#define DEBUG_PENDING  1

107 108
static const char winPythonVersionC[] = "python2.5";

con's avatar
con committed
109 110 111
#if DEBUG_PENDING
#   define PENDING_DEBUG(s) qDebug() << s
#else
Roberto Raggi's avatar
Roberto Raggi committed
112
#   define PENDING_DEBUG(s)
con's avatar
con committed
113
#endif
114
#define PENDING_DEBUGX(s) qDebug() << s
con's avatar
con committed
115

116 117
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

118
QByteArray GdbEngine::tooltipIName(const QString &exp)
119
{
120
    return "tooltip." + exp.toLatin1().toHex();
121 122
}

hjk's avatar
hjk committed
123
static bool stateAcceptsGdbCommands(DebuggerState state)
hjk's avatar
hjk committed
124
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
125
    switch (state) {
hjk's avatar
hjk committed
126
    case EngineSetupRequested:
127 128
    case EngineSetupOk:
    case EngineSetupFailed:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
129
    case InferiorUnrunnable:
hjk's avatar
hjk committed
130
    case InferiorSetupRequested:
hjk's avatar
hjk committed
131
    case InferiorSetupFailed:
hjk's avatar
hjk committed
132 133 134 135 136 137 138 139
    case EngineRunRequested:
    case InferiorRunRequested:
    case InferiorRunOk:
    case InferiorStopRequested:
    case InferiorStopOk:
    case InferiorShutdownRequested:
    case EngineShutdownRequested:
    case InferiorShutdownOk:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
140 141 142 143
    case InferiorShutdownFailed:
        return true;
    case DebuggerNotReady:
    case InferiorStopFailed:
144 145
    case InferiorStopSpontaneous:
    case InferiorSetupOk:
hjk's avatar
hjk committed
146
    case EngineRunFailed:
147
    case EngineRunOk:
hjk's avatar
hjk committed
148 149 150 151
    case InferiorRunFailed:
    case EngineShutdownOk:
    case EngineShutdownFailed:
    case DebuggerFinished:
152
        return false;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
153 154 155
    }
    return false;
}
hjk's avatar
hjk committed
156

con's avatar
con committed
157 158 159 160 161 162
static int &currentToken()
{
    static int token = 0;
    return token;
}

hjk's avatar
hjk committed
163
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
164
{
hjk's avatar
hjk committed
165
    GdbMi output = response.data.findChild("consolestreamoutput");
166 167 168 169 170 171 172 173 174 175
    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
176 177 178 179 180 181
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

182 183 184
GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters,
        DebuggerEngine *masterEngine)
  : DebuggerEngine(startParameters, masterEngine)
con's avatar
con committed
185
{
Friedemann Kleint's avatar
Friedemann Kleint committed
186
    setObjectName(QLatin1String("GdbEngine"));
187

188
    m_busy = false;
189 190 191 192 193 194 195 196 197 198 199 200 201 202
    m_gdbAdapter = 0;
    m_debuggingHelperState = DebuggingHelperUninitialized;
    m_gdbVersion = 100;
    m_gdbBuildVersion = -1;
    m_isMacGdb = false;
    m_hasPython = false;
    m_registerNamesListed = false;
    m_hasInferiorThreadList = false;
    m_sourcesListUpdating = false;
    m_oldestAcceptableToken = -1;
    m_outputCodec = QTextCodec::codecForLocale();
    m_pendingWatchRequests = 0;
    m_pendingBreakpointRequests = 0;
    m_commandsDoneCallback = 0;
203
    m_stackNeeded = false;
204 205
    invalidateSourcesList();

ck's avatar
ck committed
206
    m_gdbAdapter = createAdapter();
207

208 209 210
    m_commandTimer.setSingleShot(true);
    connect(&m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));

hjk's avatar
hjk committed
211
    connect(debuggerCore()->action(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
212
            SLOT(reloadLocals()));
hjk's avatar
hjk committed
213
    connect(debuggerCore()->action(SortStructMembers), SIGNAL(valueChanged(QVariant)),
214
            SLOT(reloadLocals()));
hjk's avatar
hjk committed
215
    connect(debuggerCore()->action(CreateFullBacktrace), SIGNAL(triggered()),
216
            SLOT(createFullBacktrace()));
217
}
218

219 220
DebuggerStartMode GdbEngine::startMode() const
{
221
    return startParameters().startMode;
con's avatar
con committed
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
QString GdbEngine::errorMessage(QProcess::ProcessError error)
con's avatar
con committed
239 240 241
{
    switch (error) {
        case QProcess::FailedToStart:
242
            return tr("The Gdb process failed to start. Either the "
con's avatar
con committed
243
                "invoked program '%1' is missing, or you may have insufficient "
244 245
                "permissions to invoke the program.\n%2")
                .arg(m_gdb, gdbProc()->errorString());
con's avatar
con committed
246
        case QProcess::Crashed:
247
            return tr("The Gdb process crashed some time after starting "
con's avatar
con committed
248 249
                "successfully.");
        case QProcess::Timedout:
250
            return tr("The last waitFor...() function timed out. "
con's avatar
con committed
251 252 253
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
        case QProcess::WriteError:
254
            return tr("An error occurred when attempting to write "
con's avatar
con committed
255 256 257
                "to the Gdb process. For example, the process may not be running, "
                "or it may have closed its input channel.");
        case QProcess::ReadError:
258
            return tr("An error occurred when attempting to read from "
con's avatar
con committed
259 260
                "the Gdb process. For example, the process may not be running.");
        default:
261
            return tr("An unknown error in the Gdb process occurred. ");
con's avatar
con committed
262 263 264 265 266 267 268
    }
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
269
    Q_UNUSED(to)
con's avatar
con committed
270 271 272 273 274 275 276 277 278 279 280
    // 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

281 282
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
283 284 285
    QString msg = m_outputCodec->toUnicode(data.constData(), data.length(),
        &m_outputCodecState);
    showMessage(msg, AppStuff);
286 287
}

288
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
289
{
290
    showMessage(QString::fromLocal8Bit(buff, buff.length()), LogOutput);
con's avatar
con committed
291 292

#if 0
293
    static QTime lastTime;
con's avatar
con committed
294 295
    qDebug() // << "#### start response handling #### "
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
296 297
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
298
        << "size:" << buff.size();
299
    lastTime = QTime::currentTime();
con's avatar
con committed
300
#else
301
    //qDebug() << "buf:" << buff;
con's avatar
con committed
302
#endif
303 304
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
305

306 307 308
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
309

310 311 312 313
    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
314
            break;
315 316 317
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
318
        //qDebug() << "found token" << token;
319
    }
con's avatar
con committed
320

hjk's avatar
hjk committed
321
    // next char decides kind of response
322 323 324 325 326 327 328 329 330 331 332 333 334 335
    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
336

hjk's avatar
hjk committed
337
            GdbMi result;
338 339
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
340
                if (*from != ',') {
341 342
                    // happens on archer where we get
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb)
hjk's avatar
hjk committed
343
                    result.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
344 345 346 347 348
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
hjk's avatar
hjk committed
349 350 351
                    //qDebug() << "parsed result:" << data.toString();
                    result.m_children += data;
                    result.m_type = GdbMi::Tuple;
con's avatar
con committed
352 353
                }
            }
354
            if (asyncClass == "stopped") {
355
                handleStopResponse(result);
356 357
                m_pendingLogStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();
358 359
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
360 361 362 363
            } 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",
364
                // symbols-loaded="0"
hjk's avatar
hjk committed
365
                QByteArray id = result.findChild("id").data();
366
                if (!id.isEmpty())
367
                    showStatusMessage(tr("Library %1 loaded").arg(_(id)), 1000);
368
                progressPing();
369
                invalidateSourcesList();
hjk's avatar
hjk committed
370 371 372 373
            } 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
374
                QByteArray id = result.findChild("id").data();
375
                progressPing();
376
                showStatusMessage(tr("Library %1 unloaded").arg(_(id)), 1000);
377
                invalidateSourcesList();
378 379
            } else if (asyncClass == "thread-group-added") {
                // 7.1-symbianelf has "{id="i1"}"
380 381 382
            } 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
383 384
                // *-started seems to be standard in 7.1, but in early
                // 7.0.x, there was a *-created instead.
385
                progressPing();
ck's avatar
ck committed
386
                // 7.1.50 has thread-group-started,id="i1",pid="3529"
hjk's avatar
hjk committed
387
                QByteArray id = result.findChild("id").data();
388
                showStatusMessage(tr("Thread group %1 created").arg(_(id)), 1000);
ck's avatar
ck committed
389 390 391 392 393 394 395
                int pid = id.toInt();
                if (!pid) {
                    id = result.findChild("pid").data();
                    pid = id.toInt();
                }
                if (pid)
                    notifyInferiorPid(pid);
396
            } else if (asyncClass == "thread-created") {
397
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
398
                QByteArray id = result.findChild("id").data();
399
                showStatusMessage(tr("Thread %1 created").arg(_(id)), 1000);
400
            } else if (asyncClass == "thread-group-exited") {
401
                // Archer has "{id="28902"}"
hjk's avatar
hjk committed
402
                QByteArray id = result.findChild("id").data();
403
                showStatusMessage(tr("Thread group %1 exited").arg(_(id)), 1000);
404
            } else if (asyncClass == "thread-exited") {
405
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
406 407
                QByteArray id = result.findChild("id").data();
                QByteArray groupid = result.findChild("group-id").data();
408
                showStatusMessage(tr("Thread %1 in group %2 exited")
hjk's avatar
hjk committed
409
                    .arg(_(id)).arg(_(groupid)), 1000);
hjk's avatar
hjk committed
410
            } else if (asyncClass == "thread-selected") {
hjk's avatar
hjk committed
411
                QByteArray id = result.findChild("id").data();
412
                showStatusMessage(tr("Thread %1 selected").arg(_(id)), 1000);
413
                //"{id="2"}"
414 415
            } else if (m_isMacGdb && asyncClass == "shlibs-updated") {
                // Apple's gdb announces updated libs.
416
                invalidateSourcesList();
417 418
            } else if (m_isMacGdb && asyncClass == "shlibs-added") {
                // Apple's gdb announces added libs.
419 420 421 422 423
                // {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=""}}
424
                invalidateSourcesList();
425 426 427 428 429
            } 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",
430
                // line="1584",shlib="/../libFoo_debug.dylib",times="0"}
431 432
                const GdbMi bkpt = result.findChild("bkpt");
                const int number = bkpt.findChild("number").data().toInt();
hjk's avatar
hjk committed
433
                BreakpointId id = breakHandler()->findBreakpointByNumber(number);
434
                updateBreakpointDataFromOutput(id, bkpt);
435
            } else {
436
                qDebug() << "IGNORED ASYNC OUTPUT"
hjk's avatar
hjk committed
437
                    << asyncClass << result.toString();
438
            }
439 440
            break;
        }
441

442
        case '~': {
443 444
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
445 446

            // Parse pid from noise.
447
            if (!inferiorPid()) {
448 449 450 451
                // 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
452 453 454
                // Mac: [Switching to process 9294 local thread 0x2e03] or
                // [Switching to process 31773]
                static QRegExp re3(_("Switching to process ([0-9]+)"));
455 456 457 458 459
                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));
460 461
                else if (re3.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re3.cap(1));
462
            }
463 464

            // Show some messages to give the impression something happens.
465
            if (data.startsWith("Reading symbols from ")) {
466
                showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
467
                progressPing();
468
                invalidateSourcesList();
469 470 471
            } else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
                if (data.endsWith('\n'))
                    data.chop(1);
472
                progressPing();
473
                showStatusMessage(_(data), 1000);
474
            }
475 476
            break;
        }
477

478
        case '@': {
479
            readDebugeeOutput(GdbMi::parseCString(from, to));
480
            break;
con's avatar
con committed
481 482
        }

483 484 485 486 487 488
        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:"))
489
                showMessage(_(data.mid(9)), AppStuff); // Cut "warning: "
con's avatar
con committed
490 491 492
            break;
        }

493
        case '^': {
hjk's avatar
hjk committed
494
            GdbResponse response;
con's avatar
con committed
495

hjk's avatar
hjk committed
496
            response.token = token;
con's avatar
con committed
497

498 499 500
            for (inner = from; inner != to; ++inner)
                if (*inner < 'a' || *inner > 'z')
                    break;
con's avatar
con committed
501

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
502
            QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
503
            if (resultClass == "done") {
hjk's avatar
hjk committed
504
                response.resultClass = GdbResultDone;
505
            } else if (resultClass == "running") {
hjk's avatar
hjk committed
506
                response.resultClass = GdbResultRunning;
507
            } else if (resultClass == "connected") {
hjk's avatar
hjk committed
508
                response.resultClass = GdbResultConnected;
509
            } else if (resultClass == "error") {
hjk's avatar
hjk committed
510
                response.resultClass = GdbResultError;
511
            } else if (resultClass == "exit") {
hjk's avatar
hjk committed
512
                response.resultClass = GdbResultExit;
513
            } else {
hjk's avatar
hjk committed
514
                response.resultClass = GdbResultUnknown;
515
            }
con's avatar
con committed
516

517 518
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
519 520
                if (*from == ',') {
                    ++from;
hjk's avatar
hjk committed
521 522 523
                    response.data.parseTuple_helper(from, to);
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
hjk's avatar
hjk committed
524
                } else {
525
                    // Archer has this.
hjk's avatar
hjk committed
526 527
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
con's avatar
con committed
528 529
                }
            }
530 531 532

            //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
            //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
hjk's avatar
hjk committed
533
            response.data.setStreamOutput("logstreamoutput",
534
                m_pendingLogStreamOutput);
hjk's avatar
hjk committed
535
            response.data.setStreamOutput("consolestreamoutput",
536 537 538 539
                m_pendingConsoleStreamOutput);
            m_pendingLogStreamOutput.clear();
            m_pendingConsoleStreamOutput.clear();

540
            handleResultRecord(&response);
541 542 543 544 545
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
546 547 548 549 550 551
        }
    }
}

void GdbEngine::readGdbStandardError()
{
ck's avatar
ck committed
552
    QByteArray err = gdbProc()->readAllStandardError();
553
    showMessage(_("UNEXPECTED GDB STDERR: " + err));
554 555
    if (err == "Undefined command: \"bb\".  Try \"help\".\n")
        return;
556 557
    if (err.startsWith("BFD: reopening"))
        return;
558
    qWarning() << "Unexpected gdb stderr:" << err;
con's avatar
con committed
559 560 561 562
}

void GdbEngine::readGdbStandardOutput()
{
563
    m_commandTimer.start(); // Restart timer.
564

565 566
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
567

ck's avatar
ck committed
568
    m_inbuffer.append(gdbProc()->readAllStandardOutput());
con's avatar
con committed
569

570
    // This can trigger when a dialog starts a nested event loop.
571 572 573
    if (m_busy)
        return;

574 575
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
576
        int end = m_inbuffer.indexOf('\n', scan);
577 578 579 580 581
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
582
        scan = newstart;
583 584
        if (end == start)
            continue;
Tobias Hunger's avatar
Tobias Hunger committed
585
#        if defined(Q_OS_WIN)
586 587 588 589 590
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
Tobias Hunger's avatar
Tobias Hunger committed
591
#        endif
592
        m_busy = true;
593
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
594
        m_busy = false;
con's avatar
con committed
595
    }
596
    m_inbuffer.clear();
con's avatar
con committed
597 598 599 600
}

void GdbEngine::interruptInferior()
{
hjk's avatar
hjk committed
601
    QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state(); return);
hjk's avatar
hjk committed
602
    showStatusMessage(tr("Stop requested..."), 5000);
603
    showMessage(_("TRYING TO INTERRUPT INFERIOR"));
hjk's avatar
hjk committed
604
    m_gdbAdapter->interruptInferior();
con's avatar
con committed
605 606
}

607 608
void GdbEngine::interruptInferiorTemporarily()
{
609
    foreach (const GdbCommand &cmd, m_commandsToRunOnTemporaryBreak) {
610
        if (cmd.flags & LosesChild) {
hjk's avatar
hjk committed
611
            notifyInferiorIll();
612
            return;
613
        }
614
    }
615
    requestInterruptInferior();
616 617
}

con's avatar
con committed
618 619
void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
620
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
621
    if (pid == 0) {
622
        showMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
623 624
        return;
    }
625
    if (pid == inferiorPid())
con's avatar
con committed
626
        return;
627

628 629
    showMessage(_("FOUND PID %1").arg(pid));
    notifyInferiorPid(pid);
con's avatar
con committed
630 631
}

632
void GdbEngine::postCommand(const QByteArray &command, AdapterCallback callback,
hjk's avatar
hjk committed
633
                            const char *callbackName, const QVariant &cookie)
634 635 636 637
{
    postCommand(command, NoFlags, callback, callbackName, cookie);
}

638
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
639 640
                            AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
hjk's avatar
hjk committed
641 642 643
{
    GdbCommand cmd;
    cmd.command = command;
644
    cmd.flags = flags;
hjk's avatar
hjk committed
645 646 647 648 649 650
    cmd.adapterCallback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

651
void GdbEngine::postCommand(const QByteArray &command, GdbCommandCallback callback,
652 653
                            const char *callbackName, const QVariant &cookie)
{
654
    postCommand(command, NoFlags, callback, callbackName, cookie);
655 656
}

657
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
658 659
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
hjk's avatar
hjk committed
660 661 662 663 664 665 666 667 668 669 670
{
    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
671
{
hjk's avatar
hjk committed
672
    if (!stateAcceptsGdbCommands(state())) {
673
        PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: " + cmd.command));
674
        showMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
675
            .arg(_(cmd.command)).arg(state()));
con's avatar
con committed
676 677 678
        return;
    }

679 680
    if (cmd.flags & RebuildWatchModel) {
        ++m_pendingWatchRequests;
681
        PENDING_DEBUG("   WATCH MODEL:" << cmd.command << "=>" << cmd.callbackName
682
                      << "INCREMENTS PENDING TO" << m_pendingWatchRequests);
683 684 685 686
    } 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
687
    } else {
688
        PENDING_DEBUG("   OTHER (IN):" << cmd.command << "=>" << cmd.callbackName
689 690
                      << "LEAVES PENDING WATCH AT" << m_pendingWatchRequests
                      << "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
con's avatar
con committed
691 692
    }

693 694 695 696 697 698
    // FIXME: clean up logic below
    if (cmd.flags & Immediate) {
        // This should always be sent.
        flushCommand(cmd);
    } else if ((cmd.flags & NeedsStop)
            || !m_commandsToRunOnTemporaryBreak.isEmpty()) {
hjk's avatar
hjk committed
699 700 701
        if (state() == InferiorStopOk || state() == InferiorUnrunnable
            || state() == InferiorSetupRequested || state() == EngineSetupOk
            || state() == InferiorShutdownRequested) {
hjk's avatar
hjk committed
702 703 704 705
            // Can be safely sent now.
            flushCommand(cmd);
        } else {
            // Queue the commands that we cannot send at once.
706
            showMessage(_("QUEUING COMMAND " + cmd.command));
hjk's avatar
hjk committed
707
            m_commandsToRunOnTemporaryBreak.append(cmd);
hjk's avatar
hjk committed
708 709 710 711
            if (state() == InferiorStopRequested) {
                if (cmd.flags & LosesChild) {
                    notifyInferiorIll();
                }
712
                showMessage(_("CHILD ALREADY BEING INTERRUPTED. STILL HOPING."));
713 714
                // Calling shutdown() here breaks all situations where two
                // NeedsStop commands are issued in quick succession.
hjk's avatar
hjk committed
715
            } else if (state() == InferiorRunOk) {
716
                showStatusMessage(tr("Stopping temporarily"), 1000);
717
                interruptInferiorTemporarily();
718
            } else {
hjk's avatar
hjk committed
719 720
                qDebug() << "ATTEMPTING TO QUEUE COMMAND "
                    << cmd.command << "IN INAPPROPRIATE STATE" << state();
721
            }
hjk's avatar
hjk committed
722
        }
hjk's avatar
hjk committed
723
    } else if (!cmd.command.isEmpty()) {
724
        flushCommand(cmd);
con's avatar
con committed
725 726 727
    }
}

728 729
void GdbEngine::flushQueuedCommands()
{
730
    showStatusMessage(tr("Processing queued commands"), 1000);
731 732
    while (!m_commandsToRunOnTemporaryBreak.isEmpty()) {
        GdbCommand cmd = m_commandsToRunOnTemporaryBreak.takeFirst();
733
        showMessage(_("RUNNING QUEUED COMMAND " + cmd.command + ' '
734
            + cmd.callbackName));
735 736 737 738
        flushCommand(cmd);
    }
}

hjk's avatar
hjk committed
739
void GdbEngine::flushCommand(const GdbCommand &cmd0)
740
{
741 742 743
    if (!stateAcceptsGdbCommands(state())) {
        showMessage(_(cmd0.command), LogInput);
        showMessage(_("GDB PROCESS ACCEPTS NO CMD IN STATE %1 ").arg(state()));
744 745 746
        return;
    }

747
    QTC_ASSERT(gdbProc()->state() == QProcess::Running, return;)
748

749
    ++currentToken();
750
    GdbCommand cmd = cmd0;
751
    cmd.postTime = QTime::currentTime();
752
    m_cookieForToken[currentToken()] = cmd;
753 754
    if (cmd.flags & ConsoleCommand)
        cmd.command = "-interpreter-exec console \"" + cmd.command + '"';
755
    cmd.command = QByteArray::number(currentToken()) + cmd.command;
756
    showMessage(_(cmd.command), LogInput);
757

758
    m_gdbAdapter->write(cmd.command + "\r\n");
759

760
    // Start Watchdog.
761 762
    if (m_commandTimer.interval() <= 20000)
        m_commandTimer.setInterval(commandTimeoutTime());
763 764 765 766
    // The process can die for external reason between the "-gdb-exit" was
    // sent and a response could be retrieved. We don't want the watchdog
    // to bark in that case since the only possible outcome is a dead
    // process anyway.
767
    if (!cmd.command.endsWith("-gdb-exit"))
768
        m_commandTimer.start();
769

hjk's avatar
hjk committed
770
    //if (cmd.flags & LosesChild)
hjk's avatar
hjk committed
771
    //    notifyInferiorIll();
772 773
}

774 775
int GdbEngine::commandTimeoutTime() const
{
hjk's avatar
hjk committed
776
    int time = debuggerCore()->action(GdbWatchdogTimeout)->value().toInt();
777
    return 1000 * qMax(40, time);
778 779
}

780 781 782 783
void GdbEngine::commandTimeout()
{
    QList<int> keys = m_cookieForToken.keys();
    qSort(keys);
784
    bool killIt = false;
785
    foreach (int key, keys) {
786 787 788
        const GdbCommand &cmd = m_cookieForToken.value(key);
        if (!(cmd.flags & NonCriticalResponse))
            killIt = true;
789 790
        QByteArray msg = QByteArray::number(key);
        msg += ": " + cmd.command + " => ";
791
        msg += cmd.callbackName ? cmd.callbackName : "<unnamed callback>";
792
        showMessage(_(msg));
793
    }
794
    if (killIt) {