gdbengine.h 16.3 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
**************************************************************************/
hjk's avatar
hjk committed
29

con's avatar
con committed
30
31
32
#ifndef DEBUGGER_GDBENGINE_H
#define DEBUGGER_GDBENGINE_H

33
#include "idebuggerengine.h"
hjk's avatar
hjk committed
34
#include "debuggermanager.h" // only for StartParameters
35
#include "gdbmi.h"
36
#include "watchutils.h"
37

con's avatar
con committed
38
39
40
41
42
43
#include <QtCore/QByteArray>
#include <QtCore/QHash>
#include <QtCore/QMap>
#include <QtCore/QObject>
#include <QtCore/QProcess>
#include <QtCore/QPoint>
hjk's avatar
hjk committed
44
#include <QtCore/QSet>
45
#include <QtCore/QTextCodec>
46
#include <QtCore/QTime>
con's avatar
con committed
47
48
49
50
51
52
#include <QtCore/QVariant>

QT_BEGIN_NAMESPACE
class QAction;
class QAbstractItemModel;
class QWidget;
53
class QMainWindow;
con's avatar
con committed
54
55
56
QT_END_NAMESPACE

namespace Debugger {
57
class DebuggerManager;
con's avatar
con committed
58
59
namespace Internal {

hjk's avatar
hjk committed
60
class AbstractGdbAdapter;
hjk's avatar
hjk committed
61
class GdbResponse;
con's avatar
con committed
62
63
64
class GdbMi;

class BreakpointData;
65
class WatchData;
con's avatar
con committed
66

67
68
class AttachGdbAdapter;
class CoreGdbAdapter;
69
70
class PlainGdbAdapter;
class RemoteGdbAdapter;
71
class TrkGdbAdapter;
72
struct TrkOptions;
73

74
enum DebuggingHelperState
con's avatar
con committed
75
{
76
77
78
79
    DebuggingHelperUninitialized,
    DebuggingHelperLoadTried,
    DebuggingHelperAvailable,
    DebuggingHelperUnavailable,
con's avatar
con committed
80
81
82
83
84
85
86
};

class GdbEngine : public IDebuggerEngine
{
    Q_OBJECT

public:
hjk's avatar
hjk committed
87
    explicit GdbEngine(DebuggerManager *manager);
con's avatar
con committed
88
89
90
    ~GdbEngine();

private:
91
    friend class AbstractGdbAdapter;
92
93
    friend class AttachGdbAdapter;
    friend class CoreGdbAdapter;
hjk's avatar
hjk committed
94
    friend class PlainGdbAdapter;
95
    friend class TermGdbAdapter;
96
    friend class RemoteGdbAdapter;
97
    friend class TrkGdbAdapter;
hjk's avatar
hjk committed
98

99
private: ////////// General Interface //////////
con's avatar
con committed
100

101
    virtual void addOptionPages(QList<Core::IOptionsPage*> *opts) const;
con's avatar
con committed
102

103
    virtual bool checkConfiguration(int toolChain, QString *errorMessage, QString *settingsPage= 0) const;
con's avatar
con committed
104

105
    virtual bool isGdbEngine() const { return true; }
con's avatar
con committed
106

107
108
109
110
    virtual void startDebugger(const DebuggerStartParametersPtr &sp);
    virtual void exitDebugger();
    virtual void detachDebugger();
    virtual void shutdown();
con's avatar
con committed
111

112
    virtual void executeDebuggerCommand(const QString &command);
con's avatar
con committed
113

114
private: ////////// General State //////////
con's avatar
con committed
115

116
117
118
119
120
    void initializeVariables();
    DebuggerStartMode startMode() const;
    const DebuggerStartParameters &startParameters() const
        { return *m_startParameters; }
    Q_SLOT void setAutoDerefPointers(const QVariant &on);
121

122
123
    DebuggerStartParametersPtr m_startParameters;
    QSharedPointer<TrkOptions> m_trkOptions;
124

125
private: ////////// Gdb Process Management //////////
126

127
128
    AbstractGdbAdapter *createAdapter(const DebuggerStartParametersPtr &dp);
    void connectAdapter();
129
130
131
    bool startGdb(const QStringList &args = QStringList(),
                  const QString &gdb = QString(),
                  const QString &settingsIdHint = QString());
132
    void startInferiorPhase2();
133

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
134
135
136
    void handleInferiorShutdown(const GdbResponse &response);
    void handleGdbExit(const GdbResponse &response);

137
138
139
140
    void gdbInputAvailable(int channel, const QString &msg)
    { m_manager->showDebuggerInput(channel, msg); }
    void gdbOutputAvailable(int channel, const QString &msg)
    { m_manager->showDebuggerOutput(channel, msg); }
141

142
private slots:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
143
144
    void handleGdbFinished(int, QProcess::ExitStatus status);
    void handleGdbError(QProcess::ProcessError error);
145
146
147
    void readGdbStandardOutput();
    void readGdbStandardError();
    void readDebugeeOutput(const QByteArray &data);
con's avatar
con committed
148

149
150
    void handleAdapterStarted();
    void handleAdapterStartFailed(const QString &msg, const QString &settingsIdHint = QString());
con's avatar
con committed
151

152
153
    void handleInferiorPrepared();

154
155
156
    void handleInferiorStartFailed(const QString &msg);

    void handleAdapterCrashed(const QString &msg);
con's avatar
con committed
157

158
159
160
161
162
private:
    QTextCodec *m_outputCodec;
    QTextCodec::ConverterState m_outputCodecState;

    QByteArray m_inbuffer;
163
    bool m_busy;
con's avatar
con committed
164

Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
165
    QProcess m_gdbProc;
166
167
168
169
170
    AbstractGdbAdapter *m_gdbAdapter;

private: ////////// Gdb Command Management //////////

    public: // otherwise the Qt flag macros are unhappy
171
172
    enum GdbCommandFlag {
        NoFlags = 0,
173
174
175
        NeedsStop = 1,    // The command needs a stopped inferior
        Discardable = 2,  // No need to wait for the reply before continuing inferior
        RebuildModel = 4, // Trigger model rebuild when no such commands are pending any more
176
        WatchUpdate = Discardable | RebuildModel,
177
        EmbedToken = 8,   // Expand %1 in the command to the command token
178
179
        RunRequest = 16,  // Callback expect GdbResultRunning instead of GdbResultDone
        ExitRequest = 32  // Callback expect GdbResultExit instead of GdbResultDone
180
181
    };
    Q_DECLARE_FLAGS(GdbCommandFlags, GdbCommandFlag)
182
    private:
183

hjk's avatar
hjk committed
184
    typedef void (GdbEngine::*GdbCommandCallback)
hjk's avatar
hjk committed
185
        (const GdbResponse &response);
hjk's avatar
hjk committed
186
    typedef void (AbstractGdbAdapter::*AdapterCallback)
hjk's avatar
hjk committed
187
        (const GdbResponse &response);
188
189
190

    struct GdbCommand
    {
hjk's avatar
hjk committed
191
192
193
        GdbCommand()
            : flags(0), callback(0), adapterCallback(0), callbackName(0)
        {}
194
195
196

        int flags;
        GdbCommandCallback callback;
hjk's avatar
hjk committed
197
        AdapterCallback adapterCallback;
198
199
200
        const char *callbackName;
        QString command;
        QVariant cookie;
201
        QTime postTime;
202
203
    };

con's avatar
con committed
204
205
    // type and cookie are sender-internal data, opaque for the "event
    // queue". resultNeeded == true increments m_pendingResults on
hjk's avatar
hjk committed
206
    // send and decrements on receipt, effectively preventing
con's avatar
con committed
207
    // watch model updates before everything is finished.
hjk's avatar
hjk committed
208
    void flushCommand(const GdbCommand &cmd);
209
    void postCommand(const QString &command,
210
211
212
213
                     GdbCommandFlags flags,
                     GdbCommandCallback callback = 0,
                     const char *callbackName = 0,
                     const QVariant &cookie = QVariant());
214
    void postCommand(const QString &command,
215
216
217
                     GdbCommandCallback callback = 0,
                     const char *callbackName = 0,
                     const QVariant &cookie = QVariant());
hjk's avatar
hjk committed
218
219
220
221
    void postCommand(const QString &command,
                     AdapterCallback callback,
                     const char *callbackName,
                     const QVariant &cookie = QVariant());
222
223
224
225
226
    void postCommand(const QString &command,
                     GdbCommandFlags flags,
                     AdapterCallback callback,
                     const char *callbackName,
                     const QVariant &cookie = QVariant());
hjk's avatar
hjk committed
227
    void postCommandHelper(const GdbCommand &cmd);
con's avatar
con committed
228
229
    void setTokenBarrier();

230
    QHash<int, GdbCommand> m_cookieForToken;
con's avatar
con committed
231

232
233
    QByteArray m_pendingConsoleStreamOutput;
    QByteArray m_pendingLogStreamOutput;
234

235
236
237
238
    // contains the first token number for the current round
    // of evaluation. Responses with older tokens are considers
    // out of date and discarded.
    int m_oldestAcceptableToken;
con's avatar
con committed
239

240
    int m_pendingRequests; // Watch updating commands in flight
hjk's avatar
hjk committed
241

242
243
244
    typedef void (GdbEngine::*CommandsDoneCallback)();
    // function called after all previous responses have been received
    CommandsDoneCallback m_commandsDoneCallback;
hjk's avatar
hjk committed
245

246
247
248
    QList<GdbCommand> m_commandsToRunOnTemporaryBreak;

private: ////////// Gdb Output, State & Capability Handling //////////
hjk's avatar
hjk committed
249

250
    void handleResponse(const QByteArray &buff);
251
    void handleStopResponse(const GdbMi &data);
252
    void handleResultRecord(GdbResponse *response);
hjk's avatar
hjk committed
253
    void handleStop1(const GdbResponse &response);
254
    void handleStop1(const GdbMi &data);
255
256
257
258
259
260
    StackFrame parseStackFrame(const GdbMi &mi, int level);

    virtual bool isSynchroneous() const;
    bool supportsThreads() const;

    // Gdb initialization sequence
hjk's avatar
hjk committed
261
    void handleShowVersion(const GdbResponse &response);
hjk's avatar
hjk committed
262
    void handleIsSynchroneous(const GdbResponse &response);
con's avatar
con committed
263

264
    int m_gdbVersion; // 6.8.0 is 60800
265
    int m_gdbBuildVersion; // MAC only?
266
    bool m_isMacGdb;
267
    bool m_isSynchroneous; // Can act synchroneously?
hjk's avatar
hjk committed
268

269
private: ////////// Inferior Management //////////
270

271
    // This should be always the last call in a function.
272
    Q_SLOT virtual void attemptBreakpointSynchronization();
273

274
275
276
277
278
    virtual void stepExec();
    virtual void stepOutExec();
    virtual void nextExec();
    virtual void stepIExec();
    virtual void nextIExec();
con's avatar
con committed
279

280
281
282
283
    void continueInferiorInternal();
    void autoContinueInferior();
    virtual void continueInferior();
    virtual void interruptInferior();
con's avatar
con committed
284

285
286
287
288
    virtual void runToLineExec(const QString &fileName, int lineNumber);
    virtual void runToFunctionExec(const QString &functionName);
//    void handleExecRunToFunction(const GdbResponse &response);
    virtual void jumpToLineExec(const QString &fileName, int lineNumber);
con's avatar
con committed
289

290
    void handleExecContinue(const GdbResponse &response);
con's avatar
con committed
291

292
293
294
    qint64 inferiorPid() const { return m_manager->inferiorPid(); }
    void handleInferiorPidChanged(qint64 pid) { manager()->notifyInferiorPidChanged(pid); }
    void maybeHandleInferiorPidChanged(const QString &pid);
con's avatar
con committed
295

296
297
298
299
300
301
private: ////////// View & Data Stuff //////////

    virtual void selectThread(int index);
    virtual void activateFrame(int index);

    void gotoLocation(const StackFrame &frame, bool setLocationMarker);
con's avatar
con committed
302
303
304
305

    //
    // Breakpoint specific stuff
    //
hjk's avatar
hjk committed
306
    void handleBreakList(const GdbResponse &response);
con's avatar
con committed
307
    void handleBreakList(const GdbMi &table);
hjk's avatar
hjk committed
308
309
310
311
312
    void handleBreakIgnore(const GdbResponse &response);
    void handleBreakInsert(const GdbResponse &response);
    void handleBreakInsert1(const GdbResponse &response);
    void handleBreakCondition(const GdbResponse &response);
    void handleBreakInfo(const GdbResponse &response);
con's avatar
con committed
313
314
315
    void extractDataFromInfoBreak(const QString &output, BreakpointData *data);
    void breakpointDataFromOutput(BreakpointData *data, const GdbMi &bkpt);
    void sendInsertBreakpoint(int index);
316
    QString breakLocation(const QString &file) const;
con's avatar
con committed
317
318
319
320

    //
    // Modules specific stuff
    //
321
322
323
    virtual void loadSymbols(const QString &moduleName);
    virtual void loadAllSymbols();
    virtual QList<Symbol> moduleSymbols(const QString &moduleName);
324
    virtual void reloadModules();
325
    void reloadModulesInternal();
hjk's avatar
hjk committed
326
    void handleModulesList(const GdbResponse &response);
con's avatar
con committed
327

328
    bool m_modulesListOutdated;
con's avatar
con committed
329
330
331

    //
    // Register specific stuff
hjk's avatar
hjk committed
332
    //
333
334
    Q_SLOT virtual void reloadRegisters();
    virtual void setRegisterValue(int nr, const QString &value);
hjk's avatar
hjk committed
335
336
    void handleRegisterListNames(const GdbResponse &response);
    void handleRegisterListValues(const GdbResponse &response);
con's avatar
con committed
337

338
339
340
341
342
343
344
345
346
347
348
349
    //
    // Disassembler specific stuff
    //
    virtual void fetchDisassembler(DisassemblerViewAgent *agent,
        const StackFrame &frame);
    void fetchDisassemblerByAddress(DisassemblerViewAgent *agent,
        bool useMixedMode);
    void handleFetchDisassemblerByLine(const GdbResponse &response);
    void handleFetchDisassemblerByAddress1(const GdbResponse &response);
    void handleFetchDisassemblerByAddress0(const GdbResponse &response);
    QString parseDisassembler(const GdbMi &lines);

350
351
    //
    // Source file specific stuff
hjk's avatar
hjk committed
352
    //
353
    virtual void reloadSourceFiles();
354
    void reloadSourceFilesInternal();
355
356
357
    void handleQuerySources(const GdbResponse &response);

    QString fullName(const QString &fileName);
358
359
360
361
362
#ifdef Q_OS_WIN
    QString cleanupFullName(const QString &fileName);
#else
    QString cleanupFullName(const QString &fileName) { return fileName; }
#endif
363
364
365
366

    // awful hack to keep track of used files
    QMap<QString, QString> m_shortToFullName;
    QMap<QString, QString> m_fullToShortName;
con's avatar
con committed
367

368
369
370
    bool m_sourcesListOutdated;
    bool m_sourcesListUpdating;

con's avatar
con committed
371
372
    //
    // Stack specific stuff
hjk's avatar
hjk committed
373
    //
374
    void updateAll();
hjk's avatar
hjk committed
375
376
377
    void handleStackListFrames(const GdbResponse &response);
    void handleStackSelectThread(const GdbResponse &response);
    void handleStackListThreads(const GdbResponse &response);
378
    void handleStackFrame(const GdbResponse &response);
hjk's avatar
hjk committed
379
    Q_SLOT void reloadStack(bool forceGotoLocation);
380
    Q_SLOT virtual void reloadFullStack();
381
    int currentFrame() const;
con's avatar
con committed
382

383
384
    QList<GdbMi> m_currentFunctionArgs;
    QString m_currentFrame;
con's avatar
con committed
385
386

    //
387
    // Watch specific stuff
hjk's avatar
hjk committed
388
    //
389
    virtual void setToolTipExpression(const QPoint &mousePos, TextEditor::ITextEditor *editor, int cursorPos);
con's avatar
con committed
390

391
392
393
394
395
396
397
    virtual void assignValueInDebugger(const QString &expr, const QString &value);

    virtual void fetchMemory(MemoryViewAgent *agent, quint64 addr, quint64 length);
    void handleFetchMemory(const GdbResponse &response);

    virtual void watchPoint(const QPoint &);
    void handleWatchPoint(const GdbResponse &response);
con's avatar
con committed
398
399
400

    // FIXME: BaseClass. called to improve situation for a watch item
    void updateSubItem(const WatchData &data);
401
402
    void handleChildren(const WatchData &parent, const GdbMi &child,
        QList<WatchData> *insertions);
con's avatar
con committed
403

404
    void virtual updateWatchData(const WatchData &data);
405
    Q_SLOT void updateWatchDataHelper(const WatchData &data);
hjk's avatar
hjk committed
406
    void rebuildModel();
407
    bool showToolTip();
con's avatar
con committed
408
409
410
411
412

    void insertData(const WatchData &data);
    void sendWatchParameters(const QByteArray &params0);
    void createGdbVariable(const WatchData &data);

413
414
415
    void runDebuggingHelper(const WatchData &data, bool dumpChildren);
    void runDirectDebuggingHelper(const WatchData &data, bool dumpChildren);
    bool hasDebuggingHelperForType(const QString &type) const;
con's avatar
con committed
416

hjk's avatar
hjk committed
417
    void handleVarListChildren(const GdbResponse &response);
418
419
    void handleVarListChildrenHelper(const GdbMi &child,
        const WatchData &parent);
hjk's avatar
hjk committed
420
421
422
423
424
425
426
427
428
    void handleVarCreate(const GdbResponse &response);
    void handleVarAssign(const GdbResponse &response);
    void handleEvaluateExpression(const GdbResponse &response);
    //void handleToolTip(const GdbResponse &response);
    void handleQueryDebuggingHelper(const GdbResponse &response);
    void handleDebuggingHelperValue2(const GdbResponse &response);
    void handleDebuggingHelperValue3(const GdbResponse &response);
    void handleDebuggingHelperEditValue(const GdbResponse &response);
    void handleDebuggingHelperSetup(const GdbResponse &response);
429
430

    void updateLocals(const QVariant &cookie = QVariant());
hjk's avatar
hjk committed
431
    void handleStackListLocals(const GdbResponse &response);
432
433
434
435
    WatchData localVariable(const GdbMi &item,
                            const QStringList &uninitializedVariables,
                            QMap<QByteArray, int> *seen);
    void setLocals(const QList<GdbMi> &locals);
hjk's avatar
hjk committed
436
    void handleStackListArguments(const GdbResponse &response);
con's avatar
con committed
437
    void setWatchDataType(WatchData &data, const GdbMi &mi);
438
    void setWatchDataDisplayedType(WatchData &data, const GdbMi &mi);
con's avatar
con committed
439

hjk's avatar
hjk committed
440
    QSet<QString> m_processedNames;
con's avatar
con committed
441
442
    QMap<QString, QString> m_varToType;

443
private: ////////// Dumper Management //////////
444

445
446
447
448
449
450
451
452
    bool startModeAllowsDumpers() const;
    void tryLoadDebuggingHelpers();
    void tryQueryDebuggingHelpers();
    Q_SLOT void recheckDebuggingHelperAvailability();
    void connectDebuggingHelperActions();
    void disconnectDebuggingHelperActions();
    Q_SLOT void setDebugDebuggingHelpers(const QVariant &on);
    Q_SLOT void setUseDebuggingHelpers(const QVariant &on);
453

454
455
456
    const bool m_dumperInjectionLoad;
    DebuggingHelperState m_debuggingHelperState;
    QtDumperHelper m_dumperHelper;
457

458
private: ////////// Convenience Functions //////////
hjk's avatar
hjk committed
459

460
    QString errorMessage(QProcess::ProcessError error);
461
    void showMessageBox(int icon, const QString &title, const QString &text);
462
    void debugMessage(const QString &msg);
463
464
    QMainWindow *mainWindow() const;

con's avatar
con committed
465
466
467
468
469
};

} // namespace Internal
} // namespace Debugger

470
471
Q_DECLARE_OPERATORS_FOR_FLAGS(Debugger::Internal::GdbEngine::GdbCommandFlags)

con's avatar
con committed
472
#endif // DEBUGGER_GDBENGINE_H