gdbengine.cpp 176 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
con's avatar
con committed
5
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
con's avatar
con committed
9
** No Commercial Usage
10
**
con's avatar
con committed
11 12 13 14
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
15
**
16
** GNU Lesser General Public License Usage
17
**
18 19 20 21 22 23
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
**
con's avatar
con committed
25 26 27 28 29 30
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
con's avatar
con committed
31
**
32
**************************************************************************/
con's avatar
con committed
33

34 35
#define QT_NO_CAST_FROM_ASCII

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

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

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

#include "breakhandler.h"
#include "moduleshandler.h"
#include "registerhandler.h"
65
#include "snapshothandler.h"
66
#include "sourcefileshandler.h"
con's avatar
con committed
67
#include "stackhandler.h"
hjk's avatar
hjk committed
68
#include "threadshandler.h"
con's avatar
con committed
69
#include "watchhandler.h"
70
#include "debuggersourcepathmappingwidget.h"
71

72 73 74
#ifdef Q_OS_WIN
#    include "dbgwinutils.h"
#endif
75
#include "logwindow.h"
con's avatar
con committed
76

77
#include <coreplugin/icore.h>
78
#include <coreplugin/ifile.h>
79
#include <projectexplorer/abi.h>
80
#include <projectexplorer/projectexplorerconstants.h>
81 82
#include <texteditor/itexteditor.h>
#include <utils/qtcassert.h>
hjk's avatar
hjk committed
83

84
#include <QtCore/QCoreApplication>
con's avatar
con committed
85 86 87
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
88
#include <QtCore/QMetaObject>
con's avatar
con committed
89 90
#include <QtCore/QTime>
#include <QtCore/QTimer>
91
#include <QtCore/QTemporaryFile>
92
#include <QtCore/QTextStream>
con's avatar
con committed
93 94

#include <QtGui/QAction>
95
#include <QtGui/QDialogButtonBox>
con's avatar
con committed
96 97 98
#include <QtGui/QLabel>
#include <QtGui/QMainWindow>
#include <QtGui/QMessageBox>
99
#include <QtGui/QPushButton>
con's avatar
con committed
100

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
101
#ifdef Q_OS_UNIX
con's avatar
con committed
102 103 104
#include <unistd.h>
#include <dlfcn.h>
#endif
hjk's avatar
hjk committed
105
#include <ctype.h>
con's avatar
con committed
106

hjk's avatar
hjk committed
107 108
using namespace ProjectExplorer;

109 110
namespace Debugger {
namespace Internal {
con's avatar
con committed
111

112 113 114
class GdbToolTipContext : public DebuggerToolTipContext
{
public:
115 116
    GdbToolTipContext(const DebuggerToolTipContext &c) :
        DebuggerToolTipContext(c), editor(0) {}
117 118 119

    QPoint mousePosition;
    QString expression;
120
    Core::IEditor *editor;
121 122
};

123 124
static const char winPythonVersionC[] = "python2.5";

125 126 127
enum { debugPending = 0 };

#define PENDING_DEBUG(s) do { if (debugPending) qDebug() << s; } while (0)
con's avatar
con committed
128

129 130
#define CB(callback) &GdbEngine::callback, STRINGIFY(callback)

131
QByteArray GdbEngine::tooltipIName(const QString &exp)
132
{
133
    return "tooltip." + exp.toLatin1().toHex();
134 135
}

hjk's avatar
hjk committed
136
static bool stateAcceptsGdbCommands(DebuggerState state)
hjk's avatar
hjk committed
137
{
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
138
    switch (state) {
hjk's avatar
hjk committed
139
    case EngineSetupRequested:
140 141
    case EngineSetupOk:
    case EngineSetupFailed:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
142
    case InferiorUnrunnable:
hjk's avatar
hjk committed
143
    case InferiorSetupRequested:
hjk's avatar
hjk committed
144
    case InferiorSetupFailed:
hjk's avatar
hjk committed
145 146 147 148 149 150 151 152
    case EngineRunRequested:
    case InferiorRunRequested:
    case InferiorRunOk:
    case InferiorStopRequested:
    case InferiorStopOk:
    case InferiorShutdownRequested:
    case EngineShutdownRequested:
    case InferiorShutdownOk:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
153 154 155 156
    case InferiorShutdownFailed:
        return true;
    case DebuggerNotReady:
    case InferiorStopFailed:
157
    case InferiorSetupOk:
hjk's avatar
hjk committed
158
    case EngineRunFailed:
hjk's avatar
hjk committed
159
    case InferiorExitOk:
hjk's avatar
hjk committed
160 161 162 163
    case InferiorRunFailed:
    case EngineShutdownOk:
    case EngineShutdownFailed:
    case DebuggerFinished:
164
        return false;
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
165 166 167
    }
    return false;
}
hjk's avatar
hjk committed
168

con's avatar
con committed
169 170 171 172 173 174
static int &currentToken()
{
    static int token = 0;
    return token;
}

hjk's avatar
hjk committed
175
static QByteArray parsePlainConsoleStream(const GdbResponse &response)
176
{
hjk's avatar
hjk committed
177
    GdbMi output = response.data.findChild("consolestreamoutput");
178 179 180 181 182 183 184 185 186 187
    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
188 189 190 191 192 193
///////////////////////////////////////////////////////////////////////
//
// GdbEngine
//
///////////////////////////////////////////////////////////////////////

194 195 196
GdbEngine::GdbEngine(const DebuggerStartParameters &startParameters,
        DebuggerEngine *masterEngine)
  : DebuggerEngine(startParameters, masterEngine)
con's avatar
con committed
197
{
198
    setObjectName(_("GdbEngine"));
199

200
    m_busy = false;
201 202 203 204 205 206 207 208 209 210 211 212 213 214
    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;
215
    m_stackNeeded = false;
216
    m_preparedForQmlBreak = false;
217
    m_disassembleUsesComma = false;
hjk's avatar
hjk committed
218
    m_qFatalBreakpointNumber = 0;
219

220 221
    invalidateSourcesList();

ck's avatar
ck committed
222
    m_gdbAdapter = createAdapter();
223

224 225 226
    m_commandTimer.setSingleShot(true);
    connect(&m_commandTimer, SIGNAL(timeout()), SLOT(commandTimeout()));

hjk's avatar
hjk committed
227
    connect(debuggerCore()->action(AutoDerefPointers), SIGNAL(valueChanged(QVariant)),
228
            SLOT(reloadLocals()));
hjk's avatar
hjk committed
229
    connect(debuggerCore()->action(SortStructMembers), SIGNAL(valueChanged(QVariant)),
230
            SLOT(reloadLocals()));
231 232 233 234
    connect(debuggerCore()->action(ShowStdNamespace), SIGNAL(valueChanged(QVariant)),
            SLOT(reloadLocals()));
    connect(debuggerCore()->action(ShowQtNamespace), SIGNAL(valueChanged(QVariant)),
            SLOT(reloadLocals()));
hjk's avatar
hjk committed
235
    connect(debuggerCore()->action(CreateFullBacktrace), SIGNAL(triggered()),
236
            SLOT(createFullBacktrace()));
237
}
238

239 240
DebuggerStartMode GdbEngine::startMode() const
{
241
    return startParameters().startMode;
con's avatar
con committed
242 243
}

ck's avatar
ck committed
244 245 246 247 248
AbstractGdbProcess *GdbEngine::gdbProc() const
{
    return m_gdbAdapter->gdbProc();
}

con's avatar
con committed
249 250
GdbEngine::~GdbEngine()
{
251
    // Prevent sending error messages afterwards.
ck's avatar
ck committed
252 253
    if (m_gdbAdapter)
        disconnect(gdbProc(), 0, this, 0);
254
    delete m_gdbAdapter;
255
    m_gdbAdapter = 0;
hjk's avatar
hjk committed
256 257
}

258
QString GdbEngine::errorMessage(QProcess::ProcessError error)
con's avatar
con committed
259 260 261
{
    switch (error) {
        case QProcess::FailedToStart:
Jarek Kobus's avatar
Jarek Kobus committed
262
            return tr("The gdb process failed to start. Either the "
con's avatar
con committed
263
                "invoked program '%1' is missing, or you may have insufficient "
264 265
                "permissions to invoke the program.\n%2")
                .arg(m_gdb, gdbProc()->errorString());
con's avatar
con committed
266
        case QProcess::Crashed:
Jarek Kobus's avatar
Jarek Kobus committed
267
            return tr("The gdb process crashed some time after starting "
con's avatar
con committed
268 269
                "successfully.");
        case QProcess::Timedout:
270
            return tr("The last waitFor...() function timed out. "
con's avatar
con committed
271 272 273
                "The state of QProcess is unchanged, and you can try calling "
                "waitFor...() again.");
        case QProcess::WriteError:
274
            return tr("An error occurred when attempting to write "
Jarek Kobus's avatar
Jarek Kobus committed
275
                "to the gdb process. For example, the process may not be running, "
con's avatar
con committed
276 277
                "or it may have closed its input channel.");
        case QProcess::ReadError:
278
            return tr("An error occurred when attempting to read from "
Jarek Kobus's avatar
Jarek Kobus committed
279
                "the gdb process. For example, the process may not be running.");
con's avatar
con committed
280
        default:
Jarek Kobus's avatar
Jarek Kobus committed
281
            return tr("An unknown error in the gdb process occurred. ");
con's avatar
con committed
282 283 284 285 286 287 288
    }
}

#if 0
static void dump(const char *first, const char *middle, const QString & to)
{
    QByteArray ba(first, middle - first);
289
    Q_UNUSED(to)
con's avatar
con committed
290 291 292 293 294 295 296 297 298 299 300
    // 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

301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
// Parse "~:gdb: unknown target exception 0xc0000139 at 0x77bef04e\n"
// and return an exception message
static inline QString msgWinException(const QByteArray &data)
{
    const int exCodePos = data.indexOf("0x");
    const int blankPos = exCodePos != -1 ? data.indexOf(' ', exCodePos + 1) : -1;
    const int addressPos = blankPos != -1 ? data.indexOf("0x", blankPos + 1) : -1;
    if (addressPos < 0)
        return GdbEngine::tr("An exception was triggered.");
    const unsigned exCode = data.mid(exCodePos, blankPos - exCodePos).toUInt(0, 0);
    const quint64 address = data.mid(addressPos).trimmed().toULongLong(0, 0);
    QString rc;
    QTextStream str(&rc);
    str << GdbEngine::tr("An exception was triggered: ");
#ifdef Q_OS_WIN
    formatWindowsException(exCode, address, 0, 0, 0, str);
#else
    Q_UNUSED(exCode)
    Q_UNUSED(address)
#endif
    str << '.';
    return rc;
}

325 326
void GdbEngine::readDebugeeOutput(const QByteArray &data)
{
327 328
    QString msg = m_outputCodec->toUnicode(data.constData(), data.length(),
        &m_outputCodecState);
329
    showMessage(msg, AppOutput);
330 331
}

332
void GdbEngine::handleResponse(const QByteArray &buff)
con's avatar
con committed
333
{
334
    showMessage(QString::fromLocal8Bit(buff, buff.length()), LogOutput);
con's avatar
con committed
335 336

#if 0
337
    static QTime lastTime;
con's avatar
con committed
338 339
    qDebug() // << "#### start response handling #### "
        << lastTime.msecsTo(QTime::currentTime()) << "ms,"
340 341
        << "buf:" << buff.left(1500) << "..."
        //<< "buf:" << buff
342
        << "size:" << buff.size();
343
    lastTime = QTime::currentTime();
con's avatar
con committed
344
#else
345
    //qDebug() << "buf:" << buff;
con's avatar
con committed
346
#endif
347 348
    if (buff.isEmpty() || buff == "(gdb) ")
        return;
con's avatar
con committed
349

350 351 352
    const char *from = buff.constData();
    const char *to = from + buff.size();
    const char *inner;
con's avatar
con committed
353

354 355 356 357
    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
358
            break;
359 360 361
    if (from != inner) {
        token = QByteArray(from, inner - from).toInt();
        from = inner;
362
        //qDebug() << "found token" << token;
363
    }
con's avatar
con committed
364

hjk's avatar
hjk committed
365
    // next char decides kind of response
366 367 368 369 370 371 372 373 374 375 376 377 378 379
    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
380

hjk's avatar
hjk committed
381
            GdbMi result;
382 383
            while (from != to) {
                GdbMi data;
hjk's avatar
hjk committed
384
                if (*from != ',') {
385 386
                    // happens on archer where we get
                    // 23^running <NL> *running,thread-id="all" <NL> (gdb)
hjk's avatar
hjk committed
387
                    result.m_type = GdbMi::Tuple;
hjk's avatar
hjk committed
388 389 390 391 392
                    break;
                }
                ++from; // skip ','
                data.parseResultOrValue(from, to);
                if (data.isValid()) {
hjk's avatar
hjk committed
393 394 395
                    //qDebug() << "parsed result:" << data.toString();
                    result.m_children += data;
                    result.m_type = GdbMi::Tuple;
con's avatar
con committed
396 397
                }
            }
398
            if (asyncClass == "stopped") {
399
                handleStopResponse(result);
400 401
                m_pendingLogStreamOutput.clear();
                m_pendingConsoleStreamOutput.clear();
402 403
            } else if (asyncClass == "running") {
                // Archer has 'thread-id="all"' here
404 405 406 407
            } 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",
408
                // symbols-loaded="0"
hjk's avatar
hjk committed
409
                QByteArray id = result.findChild("id").data();
410
                if (!id.isEmpty())
411
                    showStatusMessage(tr("Library %1 loaded").arg(_(id)), 1000);
412
                progressPing();
413
                invalidateSourcesList();
hjk's avatar
hjk committed
414 415 416 417
            } 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
418
                QByteArray id = result.findChild("id").data();
419
                progressPing();
420
                showStatusMessage(tr("Library %1 unloaded").arg(_(id)), 1000);
421
                invalidateSourcesList();
422 423
            } else if (asyncClass == "thread-group-added") {
                // 7.1-symbianelf has "{id="i1"}"
424 425 426
            } 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
427 428
                // *-started seems to be standard in 7.1, but in early
                // 7.0.x, there was a *-created instead.
429
                progressPing();
ck's avatar
ck committed
430
                // 7.1.50 has thread-group-started,id="i1",pid="3529"
hjk's avatar
hjk committed
431
                QByteArray id = result.findChild("id").data();
432
                showStatusMessage(tr("Thread group %1 created").arg(_(id)), 1000);
ck's avatar
ck committed
433 434 435 436 437 438 439
                int pid = id.toInt();
                if (!pid) {
                    id = result.findChild("pid").data();
                    pid = id.toInt();
                }
                if (pid)
                    notifyInferiorPid(pid);
440
            } else if (asyncClass == "thread-created") {
441
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
442
                QByteArray id = result.findChild("id").data();
443
                showStatusMessage(tr("Thread %1 created").arg(_(id)), 1000);
444
            } else if (asyncClass == "thread-group-exited") {
445
                // Archer has "{id="28902"}"
hjk's avatar
hjk committed
446
                QByteArray id = result.findChild("id").data();
447
                showStatusMessage(tr("Thread group %1 exited").arg(_(id)), 1000);
448
            } else if (asyncClass == "thread-exited") {
449
                //"{id="1",group-id="28902"}"
hjk's avatar
hjk committed
450 451
                QByteArray id = result.findChild("id").data();
                QByteArray groupid = result.findChild("group-id").data();
452
                showStatusMessage(tr("Thread %1 in group %2 exited")
hjk's avatar
hjk committed
453
                    .arg(_(id)).arg(_(groupid)), 1000);
hjk's avatar
hjk committed
454
            } else if (asyncClass == "thread-selected") {
hjk's avatar
hjk committed
455
                QByteArray id = result.findChild("id").data();
456
                showStatusMessage(tr("Thread %1 selected").arg(_(id)), 1000);
457
                //"{id="2"}"
458 459
            } else if (m_isMacGdb && asyncClass == "shlibs-updated") {
                // Apple's gdb announces updated libs.
460
                invalidateSourcesList();
461 462
            } else if (m_isMacGdb && asyncClass == "shlibs-added") {
                // Apple's gdb announces added libs.
463 464 465 466 467
                // {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=""}}
468
                invalidateSourcesList();
469 470 471 472 473
            } 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",
474
                // line="1584",shlib="/../libFoo_debug.dylib",times="0"}
475 476
                const GdbMi bkpt = result.findChild("bkpt");
                const int number = bkpt.findChild("number").data().toInt();
477 478 479
                if (!isQmlStepBreakpoint1(number) && isQmlStepBreakpoint2(number)) {
                    BreakpointId id = breakHandler()->findBreakpointByNumber(number);
                    updateBreakpointDataFromOutput(id, bkpt);
hjk's avatar
hjk committed
480 481 482
                    BreakpointResponse response = breakHandler()->response(id);
                    if (response.correctedLineNumber == 0)
                        attemptAdjustBreakpointLocation(id);
483
                }
484
            } else {
485
                qDebug() << "IGNORED ASYNC OUTPUT"
hjk's avatar
hjk committed
486
                    << asyncClass << result.toString();
487
            }
488 489
            break;
        }
490

491
        case '~': {
492 493
            QByteArray data = GdbMi::parseCString(from, to);
            m_pendingConsoleStreamOutput += data;
494 495

            // Parse pid from noise.
496
            if (!inferiorPid()) {
497 498 499 500
                // 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
501 502 503
                // Mac: [Switching to process 9294 local thread 0x2e03] or
                // [Switching to process 31773]
                static QRegExp re3(_("Switching to process ([0-9]+)"));
504 505 506 507 508
                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));
509 510
                else if (re3.indexIn(_(data)) != -1)
                    maybeHandleInferiorPidChanged(re3.cap(1));
511
            }
512 513

            // Show some messages to give the impression something happens.
514
            if (data.startsWith("Reading symbols from ")) {
515
                showStatusMessage(tr("Reading %1...").arg(_(data.mid(21))), 1000);
516
                progressPing();
517
                invalidateSourcesList();
518 519 520
            } else if (data.startsWith("[New ") || data.startsWith("[Thread ")) {
                if (data.endsWith('\n'))
                    data.chop(1);
521
                progressPing();
522
                showStatusMessage(_(data), 1000);
523 524 525 526 527 528
            } else if (data.startsWith("gdb: unknown target exception 0x")) {
                // [Windows, most likely some DLL/Entry point not found]:
                // "gdb: unknown target exception 0xc0000139 at 0x77bef04e"
                // This may be fatal and cause the target to exit later
                m_lastWinException = msgWinException(data);
                showMessage(m_lastWinException, LogMisc);
529
            }
530 531 532 533 534 535 536 537 538

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

539 540
            break;
        }
541

542
        case '@': {
543
            readDebugeeOutput(GdbMi::parseCString(from, to));
544
            break;
con's avatar
con committed
545 546
        }

547 548 549 550 551 552
        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:"))
553
                showMessage(_(data.mid(9)), AppStuff); // Cut "warning: "
con's avatar
con committed
554 555 556
            break;
        }

557
        case '^': {
hjk's avatar
hjk committed
558
            GdbResponse response;
con's avatar
con committed
559

hjk's avatar
hjk committed
560
            response.token = token;
con's avatar
con committed
561

562 563 564
            for (inner = from; inner != to; ++inner)
                if (*inner < 'a' || *inner > 'z')
                    break;
con's avatar
con committed
565

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
566
            QByteArray resultClass = QByteArray::fromRawData(from, inner - from);
567
            if (resultClass == "done") {
hjk's avatar
hjk committed
568
                response.resultClass = GdbResultDone;
569
            } else if (resultClass == "running") {
hjk's avatar
hjk committed
570
                response.resultClass = GdbResultRunning;
571
            } else if (resultClass == "connected") {
hjk's avatar
hjk committed
572
                response.resultClass = GdbResultConnected;
573
            } else if (resultClass == "error") {
hjk's avatar
hjk committed
574
                response.resultClass = GdbResultError;
575
            } else if (resultClass == "exit") {
hjk's avatar
hjk committed
576
                response.resultClass = GdbResultExit;
577
            } else {
hjk's avatar
hjk committed
578
                response.resultClass = GdbResultUnknown;
579
            }
con's avatar
con committed
580

581 582
            from = inner;
            if (from != to) {
hjk's avatar
hjk committed
583 584
                if (*from == ',') {
                    ++from;
hjk's avatar
hjk committed
585 586 587
                    response.data.parseTuple_helper(from, to);
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
hjk's avatar
hjk committed
588
                } else {
589
                    // Archer has this.
hjk's avatar
hjk committed
590 591
                    response.data.m_type = GdbMi::Tuple;
                    response.data.m_name = "data";
con's avatar
con committed
592 593
                }
            }
594 595 596

            //qDebug() << "\nLOG STREAM:" + m_pendingLogStreamOutput;
            //qDebug() << "\nCONSOLE STREAM:" + m_pendingConsoleStreamOutput;
hjk's avatar
hjk committed
597
            response.data.setStreamOutput("logstreamoutput",
598
                m_pendingLogStreamOutput);
hjk's avatar
hjk committed
599
            response.data.setStreamOutput("consolestreamoutput",
600 601 602 603
                m_pendingConsoleStreamOutput);
            m_pendingLogStreamOutput.clear();
            m_pendingConsoleStreamOutput.clear();

604
            handleResultRecord(&response);
605 606 607 608 609
            break;
        }
        default: {
            qDebug() << "UNKNOWN RESPONSE TYPE" << c;
            break;
con's avatar
con committed
610 611 612 613 614 615
        }
    }
}

void GdbEngine::readGdbStandardError()
{
ck's avatar
ck committed
616
    QByteArray err = gdbProc()->readAllStandardError();
617
    showMessage(_("UNEXPECTED GDB STDERR: " + err));
618 619
    if (err == "Undefined command: \"bb\".  Try \"help\".\n")
        return;
620 621
    if (err.startsWith("BFD: reopening"))
        return;
Jarek Kobus's avatar
Jarek Kobus committed
622
    qWarning() << "Unexpected GDB stderr:" << err;
con's avatar
con committed
623 624 625 626
}

void GdbEngine::readGdbStandardOutput()
{
627
    m_commandTimer.start(); // Restart timer.
628

629 630
    int newstart = 0;
    int scan = m_inbuffer.size();
con's avatar
con committed
631

ck's avatar
ck committed
632
    m_inbuffer.append(gdbProc()->readAllStandardOutput());
con's avatar
con committed
633

634
    // This can trigger when a dialog starts a nested event loop.
635 636 637
    if (m_busy)
        return;

638 639
    while (newstart < m_inbuffer.size()) {
        int start = newstart;
640
        int end = m_inbuffer.indexOf('\n', scan);
641 642 643 644 645
        if (end < 0) {
            m_inbuffer.remove(0, start);
            return;
        }
        newstart = end + 1;
646
        scan = newstart;
647 648
        if (end == start)
            continue;
Tobias Hunger's avatar
Tobias Hunger committed
649
#        if defined(Q_OS_WIN)
650 651 652 653 654
        if (m_inbuffer.at(end - 1) == '\r') {
            --end;
            if (end == start)
                continue;
        }
Tobias Hunger's avatar
Tobias Hunger committed
655
#        endif
656
        m_busy = true;
657
        handleResponse(QByteArray::fromRawData(m_inbuffer.constData() + start, end - start));
658
        m_busy = false;
con's avatar
con committed
659
    }
660
    m_inbuffer.clear();
con's avatar
con committed
661 662 663 664
}

void GdbEngine::interruptInferior()
{
hjk's avatar
hjk committed
665
    QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state(); return);
666 667 668 669 670 671 672 673

    if (debuggerCore()->boolSetting(TargetAsync)) {
        postCommand("-exec-interrupt");
    } else {
        showStatusMessage(tr("Stop requested..."), 5000);
        showMessage(_("TRYING TO INTERRUPT INFERIOR"));
        m_gdbAdapter->interruptInferior();
    }
con's avatar
con committed
674 675
}

676 677
void GdbEngine::interruptInferiorTemporarily()
{
678
    foreach (const GdbCommand &cmd, m_commandsToRunOnTemporaryBreak) {
679
        if (cmd.flags & LosesChild) {
hjk's avatar
hjk committed
680
            notifyInferiorIll();
681
            return;
682
        }
683
    }
684
    requestInterruptInferior();
685 686
}

con's avatar
con committed
687 688
void GdbEngine::maybeHandleInferiorPidChanged(const QString &pid0)
{
689
    const qint64 pid = pid0.toLongLong();
con's avatar
con committed
690
    if (pid == 0) {
691
        showMessage(_("Cannot parse PID from %1").arg(pid0));
con's avatar
con committed
692 693
        return;
    }
694
    if (pid == inferiorPid())
con's avatar
con committed
695
        return;
696

697 698
    showMessage(_("FOUND PID %1").arg(pid));
    notifyInferiorPid(pid);
con's avatar
con committed
699 700
}

701
void GdbEngine::postCommand(const QByteArray &command, AdapterCallback callback,
hjk's avatar
hjk committed
702
                            const char *callbackName, const QVariant &cookie)
703 704 705 706
{
    postCommand(command, NoFlags, callback, callbackName, cookie);
}

707
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
708 709
                            AdapterCallback callback,
                            const char *callbackName, const QVariant &cookie)
hjk's avatar
hjk committed
710 711 712
{
    GdbCommand cmd;
    cmd.command = command;
713
    cmd.flags = flags;
hjk's avatar
hjk committed
714 715 716 717 718 719
    cmd.adapterCallback = callback;
    cmd.callbackName = callbackName;
    cmd.cookie = cookie;
    postCommandHelper(cmd);
}

720
void GdbEngine::postCommand(const QByteArray &command, GdbCommandCallback callback,
721 722
                            const char *callbackName, const QVariant &cookie)
{
723
    postCommand(command, NoFlags, callback, callbackName, cookie);
724 725
}

726
void GdbEngine::postCommand(const QByteArray &command, GdbCommandFlags flags,
727 728
                            GdbCommandCallback callback, const char *callbackName,
                            const QVariant &cookie)
hjk's avatar
hjk committed
729 730 731 732 733 734 735 736 737 738 739
{
    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
740
{
hjk's avatar
hjk committed
741
    if (!stateAcceptsGdbCommands(state())) {
742
        PENDING_DEBUG(_("NO GDB PROCESS RUNNING, CMD IGNORED: " + cmd.command));
743
        showMessage(_("NO GDB PROCESS RUNNING, CMD IGNORED: %1 %2")
744
            .arg(_(cmd.command)).arg(state()));
con's avatar
con committed
745 746 747
        return;
    }

748 749
    if (cmd.flags & RebuildWatchModel) {
        ++m_pendingWatchRequests;
750
        PENDING_DEBUG("   WATCH MODEL:" << cmd.command << "=>" << cmd.callbackName
751
                      << "INCREMENTS PENDING TO" << m_pendingWatchRequests);
752 753 754 755
    } 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
756
    } else {
757
        PENDING_DEBUG("   OTHER (IN):" << cmd.command << "=>" << cmd.callbackName
758 759
                      << "LEAVES PENDING WATCH AT" << m_pendingWatchRequests
                      << "LEAVES PENDING BREAKPOINT AT" << m_pendingBreakpointRequests);
con's avatar
con committed
760 761
    }

762 763 764 765 766 767
    // 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
768 769 770
        if (state() == InferiorStopOk || state() == InferiorUnrunnable
            || state() == InferiorSetupRequested || state() == EngineSetupOk
            || state() == InferiorShutdownRequested) {
hjk's avatar
hjk committed
771 772 773 774
            // Can be safely sent now.
            flushCommand(cmd);
        } else {
            // Queue the commands that we cannot send at once.
775
            showMessage(_("QUEUING COMMAND " + cmd.command));
hjk's avatar
hjk committed
776
            m_commandsToRunOnTemporaryBreak.append(cmd);
hjk's avatar
hjk committed
777 778 779 780
            if (state() == InferiorStopRequested) {
                if (cmd.flags & LosesChild) {
                    notifyInferiorIll();
                }
781
                showMessage(_("CHILD ALREADY BEING INTERRUPTED. STILL HOPING."));
782 783
                // Calling shutdown() here breaks all situations where two
                // NeedsStop commands are issued in quick succession.
hjk's avatar
hjk committed
784
            } else if (state() == InferiorRunOk) {
785
                showStatusMessage(tr("Stopping temporarily"), 1000);
786
                interruptInferiorTemporarily();
787
            } else {
hjk's avatar
hjk committed
788 789
                qDebug() << "ATTEMPTING TO QUEUE COMMAND "
                    << cmd.command << "IN INAPPROPRIATE STATE" << state();
790
            }
hjk's avatar
hjk committed
791
        }
hjk's avatar
hjk committed
792
    } else if (!cmd.command.isEmpty()) {
793
        flushCommand(cmd);
con's avatar
con committed
794 795 796
    }
}

797 798
void GdbEngine::flushQueuedCommands()
{
799
    showStatusMessage(