lldbbridge.py 61.2 KB
Newer Older
1
2
############################################################################
#
3
# Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
# Contact: http://www.qt-project.org/legal
#
# This file is part of Qt Creator.
#
# Commercial License Usage
# Licensees holding valid commercial Qt licenses may use this file in
# accordance with the commercial license agreement provided with the
# Software or, alternatively, in accordance with the terms contained in
# a written agreement between you and Digia.  For licensing terms and
# conditions see http://qt.digia.com/licensing.  For further information
# use the contact form at http://qt.digia.com/contact-us.
#
# GNU Lesser General Public License Usage
# 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.
#
# In addition, as a special exception, Digia gives you certain additional
# rights.  These rights are described in the Digia Qt LGPL Exception
# version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
#
#############################################################################
29

30
import atexit
31
import inspect
32
import json
33
import os
34
import re
35
36
import select
import sys
37
import subprocess
38
import threading
39

40
41
42
43
44
currentDir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
sys.path.insert(1, currentDir)

from dumper import *
from qttypes import *
hjk's avatar
hjk committed
45
46
47
from stdtypes import *
from misctypes import *
from boosttypes import *
48
from creatortypes import *
49

50
51
52
lldbCmd = 'lldb'
if len(sys.argv) > 1:
    lldbCmd = sys.argv[1]
53

54
proc = subprocess.Popen(args=[lldbCmd, '-P'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
55
(path, error) = proc.communicate()
56

57
if error.startswith('lldb: invalid option -- P'):
58
    sys.stdout.write('msg=\'Could not run "%s -P". Trying to find lldb.so from Xcode.\'@\n' % lldbCmd)
59
60
61
62
63
    proc = subprocess.Popen(args=['xcode-select', '--print-path'],
        stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    (path, error) = proc.communicate()
    if len(error):
        path = '/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Versions/A/Resources/Python/'
64
65
        sys.stdout.write('msg=\'Could not run "xcode-select --print-path"@\n')
        sys.stdout.write('msg=\'Using hardcoded fallback at %s\'@\n' % path)
66
67
    else:
        path = path.strip() + '/../SharedFrameworks/LLDB.framework/Versions/A/Resources/Python/'
68
        sys.stdout.write('msg=\'Using fallback at %s\'@\n' % path)
69

70
sys.path.insert(1, path.strip())
71
72

import lldb
73
74
75
76
77
78
79

#######################################################################
#
# Helpers
#
#######################################################################

80
qqWatchpointOffset = 10000
81

82
lldb.theDumper = None
83
84

def warn(message):
85
    print('\n\nWARNING="%s",\n' % message.encode("latin1").replace('"', "'"))
86
87
88

def showException(msg, exType, exValue, exTraceback):
    warn("**** CAUGHT EXCEPTION: %s ****" % msg)
89
90
91
    import traceback
    lines = [line for line in traceback.format_exception(exType, exValue, exTraceback)]
    warn('\n'.join(lines))
92
93
94
95

def fileName(file):
    return str(file) if file.IsValid() else ''

96

97
98
99
100
101
102
103
104
105
106
# Breakpoints. Keep synchronized with BreakpointType in breakpoint.h
UnknownType = 0
BreakpointByFileAndLine = 1
BreakpointByFunction = 2
BreakpointByAddress = 3
BreakpointAtThrow = 4
BreakpointAtCatch = 5
BreakpointAtMain = 6
BreakpointAtFork = 7
BreakpointAtExec = 8
107
108
109
110
111
BreakpointAtSysCall = 9
WatchpointAtAddress = 10
WatchpointAtExpression = 11
BreakpointOnQmlSignalEmit = 12
BreakpointAtJavaScriptThrow = 13
112

113
114
115
# See db.StateType
stateNames = ["invalid", "unloaded", "connected", "attaching", "launching", "stopped",
    "running", "stepping", "crashed", "detached", "exited", "suspended" ]
116

117
118
119
def loggingCallback(args):
    s = args.strip()
    s = s.replace('"', "'")
120
    sys.stdout.write('log="%s"@\n' % s)
121

hjk's avatar
hjk committed
122
123
124
125
def check(exp):
    if not exp:
        raise RuntimeError("Check failed")

126
127
Value = lldb.SBValue

128
129
def impl_SBValue__add__(self, offset):
    if self.GetType().IsPointerType():
130
131
132
133
        if isinstance(offset, int) or isinstance(offset, long):
            pass
        else:
            offset = offset.GetValueAsSigned()
134
        itemsize = self.GetType().GetPointeeType().GetByteSize()
135
        address = self.GetValueAsUnsigned() + offset * itemsize
136
        address = address & 0xFFFFFFFFFFFFFFFF  # Force unsigned
137
138
        return self.CreateValueFromAddress(None, address,
                self.GetType().GetPointeeType()).AddressOf()
hjk's avatar
hjk committed
139

140
    raise RuntimeError("SBValue.__add__ not implemented: %s" % self.GetType())
141
142
    return NotImplemented

143
def impl_SBValue__sub__(self, other):
144
    if self.GetType().IsPointerType():
145
146
147
148
        if isinstance(other, int) or isinstance(other, long):
            address = self.GetValueAsUnsigned() - offset.GetValueAsSigned()
            address = address & 0xFFFFFFFFFFFFFFFF  # Force unsigned
            return self.CreateValueFromAddress(None, address, self.GetType())
149
        if other.GetType().IsPointerType():
150
151
            itemsize = self.GetType().GetPointeeType().GetByteSize()
            return (self.GetValueAsUnsigned() - other.GetValueAsUnsigned()) / itemsize
152
    raise RuntimeError("SBValue.__sub__ not implemented: %s" % self.GetType())
153
154
    return NotImplemented

155
156
157
158
159
160
161
def impl_SBValue__le__(self, other):
    if self.GetType().IsPointerType() and other.GetType().IsPointerType():
        return int(self) <= int(other)
    raise RuntimeError("SBValue.__le__ not implemented")
    return NotImplemented

def impl_SBValue__int__(self):
162
    return self.GetValueAsSigned()
163
164
165
166
167
168
169
170
171
172

def impl_SBValue__float__(self):
    error = lldb.SBError()
    if self.GetType().GetByteSize() == 4:
        result = self.GetData().GetFloat(error, 0)
    else:
        result = self.GetData().GetDouble(error, 0)
    if error.Success():
        return result
    return NotImplemented
173

174
175
176
def impl_SBValue__long__(self):
    return int(self.GetValue(), 0)

177
178
179
180
181
182
183
184
185
def impl_SBValue__getitem__(value, index):
    if isinstance(index, int):
        type = value.GetType()
        if type.IsPointerType():
            innertype = value.Dereference().GetType()
            address = value.GetValueAsUnsigned() + index * innertype.GetByteSize()
            address = address & 0xFFFFFFFFFFFFFFFF  # Force unsigned
            return value.CreateValueFromAddress(None, address, innertype)
        return value.GetChildAtIndex(index)
186
    return value.GetChildMemberWithName(index)
187

188
189
190
191
def impl_SBValue__deref(value):
    result = value.Dereference()
    if result.IsValid():
        return result
192
193
    exp = "*(class %s*)0x%x" % (value.GetType().GetPointeeType(), value.GetValueAsUnsigned())
    return value.CreateValueFromExpression(None, exp)
194

195
lldb.SBValue.__add__ = impl_SBValue__add__
196
lldb.SBValue.__sub__ = impl_SBValue__sub__
197
lldb.SBValue.__le__ = impl_SBValue__le__
198

199
200
lldb.SBValue.__getitem__ = impl_SBValue__getitem__
lldb.SBValue.__int__ = impl_SBValue__int__
201
lldb.SBValue.__float__ = impl_SBValue__float__
202
203
lldb.SBValue.__long__ = lambda self: long(self.GetValue(), 0)

204
lldb.SBValue.code = lambda self: self.GetTypeClass()
205
lldb.SBValue.cast = lambda self, typeObj: self.Cast(typeObj)
206
lldb.SBValue.dereference = impl_SBValue__deref
207
lldb.SBValue.address = property(lambda self: self.GetLoadAddress())
208
209

lldb.SBType.pointer = lambda self: self.GetPointerType()
hjk's avatar
hjk committed
210
lldb.SBType.target = lambda self: self.GetPointeeType()
211
lldb.SBType.code = lambda self: self.GetTypeClass()
212
lldb.SBType.sizeof = property(lambda self: self.GetByteSize())
213
214


hjk's avatar
hjk committed
215
216
lldb.SBType.unqualified = \
    lambda self: self.GetUnqualifiedType() if hasattr(self, 'GetUnqualifiedType') else self
217
218
lldb.SBType.strip_typedefs = \
    lambda self: self.GetCanonicalType() if hasattr(self, 'GetCanonicalType') else self
219

hjk's avatar
hjk committed
220
221
222
lldb.SBType.__orig__str__ = lldb.SBType.__str__
lldb.SBType.__str__ = lldb.SBType.GetName

223
224
225
226
def simpleEncoding(typeobj):
    code = typeobj.GetTypeClass()
    size = typeobj.sizeof
    if code == lldb.eTypeClassBuiltin:
hjk's avatar
hjk committed
227
228
229
230
231
232
        name = str(typeobj)
        if name == "float":
            return Hex2EncodedFloat4
        if name == "double":
            return Hex2EncodedFloat8
        if name.find("unsigned") >= 0:
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
            if size == 1:
                return Hex2EncodedUInt1
            if size == 2:
                return Hex2EncodedUInt2
            if size == 4:
                return Hex2EncodedUInt4
            if size == 8:
                return Hex2EncodedUInt8
        else:
            if size == 1:
                return Hex2EncodedInt1
            if size == 2:
                return Hex2EncodedInt2
            if size == 4:
                return Hex2EncodedInt4
            if size == 8:
                return Hex2EncodedInt8
    return None
hjk's avatar
hjk committed
251

252
class Dumper(DumperBase):
253
    def __init__(self):
254
255
        DumperBase.__init__(self)

256
257
        lldb.theDumper = self

258
        self.debugger = lldb.SBDebugger.Create()
259
        #self.debugger.SetLoggingCallback(loggingCallback)
260
261
262
263
264
265
        #Same as: self.debugger.HandleCommand("log enable lldb dyld step")
        #self.debugger.EnableLog("lldb", ["dyld", "step", "process", "state", "thread", "events",
        #    "communication", "unwind", "commands"])
        #self.debugger.EnableLog("lldb", ["all"])
        self.debugger.Initialize()
        self.debugger.HandleCommand("settings set auto-confirm on")
266
267
268
269
270
271
272
273
274
275

        # FIXME: warn("DISABLING DEFAULT FORMATTERS")
        # It doesn't work at all with 179.5 and we have some bad
        # interactonn in 3000
        # if not hasattr(lldb.SBType, 'GetCanonicalType'): # "Test" for 179.5
        self.debugger.HandleCommand('type category delete gnu-libstdc++')
        self.debugger.HandleCommand('type category delete libcxx')
        #for i in range(self.debugger.GetNumCategories()):
        #    self.debugger.GetCategoryAtIndex(i).SetEnabled(False)

276
        self.isLldb = True
hjk's avatar
hjk committed
277
        self.isGoodLldb = hasattr(lldb.SBValue, "SetPreferDynamicValue")
278
279
280
281
        self.process = None
        self.target = None
        self.eventState = lldb.eStateInvalid
        self.expandedINames = {}
282
        self.passExceptions = False
283
        self.useLldbDumpers = False
hjk's avatar
hjk committed
284
        self.autoDerefPointers = True
285
        self.useDynamicType = True
hjk's avatar
hjk committed
286
        self.useFancy = True
hjk's avatar
hjk committed
287
288
        self.formats = {}
        self.typeformats = {}
289
290
291
292
293
294

        self.currentIName = None
        self.currentValuePriority = -100
        self.currentValueEncoding = None
        self.currentType = ""
        self.currentTypePriority = -100
295
        self.currentValue = None
296
297
298
299
300
        self.currentNumChild = None
        self.currentMaxNumChild = None
        self.currentPrintsAddress = None
        self.currentChildType = None
        self.currentChildNumChild = None
301
        self.currentWatchers = {}
302

hjk's avatar
hjk committed
303
        self.executable_ = None
304
305
306
307
        self.startMode_ = None
        self.processArgs_ = None
        self.attachPid_ = None

308
309
        self.charType_ = None
        self.intType_ = None
310
        self.int64Type_ = None
311
312
        self.sizetType_ = None
        self.charPtrType_ = None
hjk's avatar
hjk committed
313
        self.voidPtrType_ = None
314
        self.isShuttingDown_ = False
315
        self.isInterrupting_ = False
316
        self.dummyValue = None
317
        self.types_ = {}
318

319
320
321
322
    def enterSubItem(self, item):
        if isinstance(item.name, lldb.SBValue):
            # Avoid $$__synth__ suffix on Mac.
            value = item.name
hjk's avatar
hjk committed
323
324
            if self.isGoodLldb:
                value.SetPreferSyntheticValue(False)
325
326
327
328
            item.name = value.GetName()
            if item.name is None:
                self.anonNumber += 1
                item.name = "#%d" % self.anonNumber
329
330
        if not item.iname:
            item.iname = "%s.%s" % (self.currentIName, item.name)
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
        self.put('{')
        #if not item.name is None:
        if isinstance(item.name, str):
            if item.name == '**&':
                item.name = '*'
            self.put('name="%s",' % item.name)
        item.savedIName = self.currentIName
        item.savedValue = self.currentValue
        item.savedValuePriority = self.currentValuePriority
        item.savedValueEncoding = self.currentValueEncoding
        item.savedType = self.currentType
        item.savedTypePriority = self.currentTypePriority
        self.currentIName = item.iname
        self.currentValuePriority = -100
        self.currentValueEncoding = None
        self.currentType = ""
        self.currentTypePriority = -100

    def exitSubItem(self, item, exType, exValue, exTraceBack):
        if not exType is None:
            if self.passExceptions:
                showException("SUBITEM", exType, exValue, exTraceBack)
            self.putNumChild(0)
            self.putValue("<not accessible>")
        try:
            typeName = self.currentType
            if len(typeName) > 0 and typeName != self.currentChildType:
                self.put('type="%s",' % typeName) # str(type.unqualified()) ?
            if  self.currentValue is None:
                self.put('value="<not accessible>",numchild="0",')
            else:
                if not self.currentValueEncoding is None:
363
                    self.put('valueencoded="%s",' % self.currentValueEncoding)
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
                self.put('value="%s",' % self.currentValue)
        except:
            pass
        self.put('},')
        self.currentIName = item.savedIName
        self.currentValue = item.savedValue
        self.currentValuePriority = item.savedValuePriority
        self.currentValueEncoding = item.savedValueEncoding
        self.currentType = item.savedType
        self.currentTypePriority = item.savedTypePriority
        return True

    def isSimpleType(self, typeobj):
        typeClass = typeobj.GetTypeClass()
        return typeClass == lldb.eTypeClassBuiltin

hjk's avatar
hjk committed
380
381
382
    def childWithName(self, value, name):
        child = value.GetChildMemberWithName(name)
        return child if child.IsValid() else None
383

384
385
386
    def simpleValue(self, value):
        return str(value.value)

387
388
389
390
391
392
393
394
395
    def childAt(self, value, index):
        return value.GetChildAtIndex(index)

    def fieldAt(self, type, index):
        return type.GetFieldAtIndex(index)

    def pointerValue(self, value):
        return value.GetValueAsUnsigned()

396
397
398
399
400
    def enumExpression(self, enumType, enumValue):
        ns = self.qtNamespace()
        return ns + "Qt::" + enumType + "(" \
            + ns + "Qt::" + enumType + "::" + enumValue + ")"

401
402
403
404
405
406
407
    def call2(self, value, func, args):
        # args is a tuple.
        arg = ','.join(args)
        #warn("CALL: %s -> %s(%s)" % (value, func, arg))
        type = value.type.name
        exp = "((%s*)%s)->%s(%s)" % (type, value.address, func, arg)
        #warn("CALL: %s" % exp)
408
        result = value.CreateValueFromExpression('', exp)
409
410
411
        #warn("  -> %s" % result)
        return result

412
413
414
415
416
417
418
419
420
421
    def makeValue(self, type, *args):
        thread = self.currentThread()
        frame = thread.GetFrameAtIndex(0)
        inner = ','.join(args)
        value = frame.EvaluateExpression(type + '{' + inner + '}')
        #warn("  TYPE: %s" % value.type)
        #warn("  ADDR: 0x%x" % value.address)
        #warn("  VALUE: %s" % value)
        return value

422
423
424
425
426
    def parseAndEvaluate(self, expr):
        thread = self.currentThread()
        frame = thread.GetFrameAtIndex(0)
        return frame.EvaluateExpression(expr)

427
428
429
430
431
432
433
434
435
436
437
438
439
    def call(self, value, func, *args):
        return self.call2(value, func, args)

    def checkPointer(self, p, align = 1):
        if not self.isNull(p):
            p.Dereference()

    def isNull(self, p):
        return p.GetValueAsUnsigned() == 0

    def directBaseClass(self, typeobj, index = 0):
        return typeobj.GetDirectBaseClassAtIndex(index)

440
    def templateArgument(self, typeobj, index):
441
        type = typeobj.GetTemplateArgumentType(index)
hjk's avatar
hjk committed
442
        if type.IsValid():
443
444
445
446
447
448
449
            return type
        inner = self.extractTemplateArgument(typeobj.GetName(), index)
        return self.lookupType(inner)

    def numericTemplateArgument(self, typeobj, index):
        inner = self.extractTemplateArgument(typeobj.GetName(), index)
        return int(inner)
450

hjk's avatar
hjk committed
451
452
453
454
455
456
    def isReferenceType(self, typeobj):
        return typeobj.IsReferenceType()

    def isStructType(self, typeobj):
        return typeobj.GetTypeClass() in (lldb.eTypeClassStruct, lldb.eTypeClassClass)

457
458
    def qtVersionAndNamespace(self):
        self.cachedQtNamespace = ""
459
        self.cachedQtVersion = 0x0
460

461
462
463
        coreExpression = re.compile(r"(lib)?Qt5?Core")
        for n in range(0, self.target.GetNumModules()):
            module = self.target.GetModuleAtIndex(n)
464
465
            fileName = module.GetFileSpec().GetFilename()
            if coreExpression.match(fileName):
466
                # Extract version.
467
                reverseVersion = module.GetVersion()
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
                if len(reverseVersion):
                    # Mac, Clang?
                    reverseVersion.reverse()
                    shift = 0
                    for v in reverseVersion:
                        self.cachedQtVersion += v << shift
                        shift += 8
                else:
                    # Linux, gcc?
                    if fileName.endswith(".5"):
                        self.cachedQtVersion = 0x50000
                    elif fileName.endswith(".4"):
                        self.cachedQtVersion = 0x40800
                    else:
                        warn("CANNOT GUESS QT VERSION")

484
485
486
487
488
489
490
491
492
493

                # Look for some Qt symbol to extract namespace.
                for symbol in module.symbols:
                    name = symbol.GetName()
                    pos = name.find("QString")
                    if pos >= 0:
                        name = name[:pos]
                        if name.endswith("::"):
                            self.cachedQtNamespace = re.sub('^.*[^\w]([\w]+)::$', '\\1', name) + '::'
                        break
494
                break
495
496

        # Memoize good results.
497
        self.qtNamespace = lambda: self.cachedQtNamespace
498
        self.qtVersion = lambda: self.cachedQtVersion
499
500
501
502
503
504

    def qtNamespace(self):
        self.qtVersionAndNamespace()
        return self.cachedQtNamespace

    def qtVersion(self):
505
        self.qtVersionAndNamespace()
506
        return self.cachedQtVersion
507

hjk's avatar
hjk committed
508
509
510
    def intSize(self):
        return 4

511
512
    def intType(self):
        if self.intType_ is None:
hjk's avatar
hjk committed
513
             self.intType_ = self.target.FindFirstType('int')
514
515
        return self.intType_

516
517
518
519
520
    def int64Type(self):
        if self.int64Type_ is None:
             self.int64Type_ = self.target.FindFirstType('long long int')
        return self.int64Type_

521
522
    def charType(self):
        if self.charType_ is None:
hjk's avatar
hjk committed
523
             self.charType_ = self.target.FindFirstType('char')
524
525
526
527
528
529
530
531
        return self.charType_

    def charPtrType(self):
        if self.charPtrType_ is None:
             self.charPtrType_ = self.charType().GetPointerType()
        return self.charPtrType_

    def voidPtrType(self):
hjk's avatar
hjk committed
532
533
534
        if self.voidPtrType_ is None:
             self.voidPtrType_ = self.target.FindFirstType('void').GetPointerType()
        return self.voidPtrType_
535

hjk's avatar
hjk committed
536
    def ptrSize(self):
537
538
539
540
541
542
543
        return self.charPtrType().GetByteSize()

    def sizetType(self):
        if self.sizetType_ is None:
             self.sizetType_ = self.lookupType('size_t')
        return self.sizetType_

544
545
546
    def addressOf(self, value):
        return int(value.GetLoadAddress())

hjk's avatar
hjk committed
547
548
549
    def extractInt(self, address):
        return int(self.createValue(address, self.intType()))

550
551
552
    def extractInt64(self, address):
        return int(self.createValue(address, self.int64Type()))

553
554
555
    def extractByte(self, address):
        return int(self.createValue(address, self.charType())) & 0xFF

556
557
558
559
560
561
    def handleCommand(self, command):
        result = lldb.SBCommandReturnObject()
        self.debugger.GetCommandInterpreter().HandleCommand(command, result)
        success = result.Succeeded()
        if success:
            self.report('output="%s"' % result.GetOutput())
562
        else:
563
564
565
566
567
568
            self.report('error="%s"' % result.GetError())
        self.reportData()

    def put(self, stuff):
        sys.stdout.write(stuff)

569
    def isMovableType(self, type):
570
        if type.GetTypeClass() in (lldb.eTypeClassBuiltin, lldb.eTypeClassPointer):
571
            return True
572
        return self.isKnownMovableType(self.stripNamespaceFromType(type.GetName()))
573

574
575
    def putNumChild(self, numchild):
        #warn("NUM CHILD: '%s' '%s'" % (numchild, self.currentChildNumChild))
hjk's avatar
hjk committed
576
577
        #if numchild != self.currentChildNumChild:
        self.put('numchild="%s",' % numchild)
578

579
580
581
582
583
584
585
    def putPointerValue(self, value):
        # Use a lower priority
        if value is None:
            self.putEmptyValue(-1)
        else:
            self.putValue("0x%x" % value.Dereference())

hjk's avatar
hjk committed
586
587
588
    def putSimpleValue(self, value, encoding = None, priority = 0):
        self.putValue(value.GetValue(), encoding, priority)

589
    def tryPutArrayContents(self, typeobj, base, n):
590
        if not self.isSimpleType(typeobj):
591
592
593
            return False
        size = n * typeobj.sizeof
        self.put('childtype="%s",' % typeobj)
594
595
        self.put('addrbase="0x%x",' % int(base))
        self.put('addrstep="%d",' % typeobj.sizeof)
596
597
        self.put('arrayencoding="%s",' % simpleEncoding(typeobj))
        self.put('arraydata="')
598
        self.put(self.readMemory(base, size))
599
600
601
602
603
604
        self.put('",')
        return True

    def putArrayData(self, type, base, n,
            childNumChild = None, maxNumChild = 10000):
        if not self.tryPutArrayContents(type, base, n):
605
            base = self.createPointerValue(base, type)
606
607
608
609
610
            with Children(self, n, type, childNumChild, maxNumChild,
                    base, type.GetByteSize()):
                for i in self.childRange():
                    self.putSubItem(i, (base + i).dereference())

611
612
613
614
615
616
617
618
    def createPointerValue(self, address, pointeeType):
        addr = int(address) & 0xFFFFFFFFFFFFFFFF
        return self.context.CreateValueFromAddress(None, addr, pointeeType).AddressOf()

    def createValue(self, address, referencedType):
        addr = int(address) & 0xFFFFFFFFFFFFFFFF
        return self.context.CreateValueFromAddress(None, addr, referencedType)

619
    def putCallItem(self, name, value, func, *args):
620
        result = self.call2(value, func, args)
621
622
623
        with SubItem(self, name):
            self.putItem(result)

624
625
626
627
628
    def childRange(self):
        if self.currentMaxNumChild is None:
            return xrange(0, self.currentNumChild)
        return xrange(min(self.currentMaxNumChild, self.currentNumChild))

629
630
631
    def canonicalTypeName(self, name):
        return re.sub('\\bconst\\b', '', name).replace(' ', '')

632
    def lookupType(self, name):
hjk's avatar
hjk committed
633
        #warn("LOOKUP TYPE NAME: %s" % name)
hjk's avatar
hjk committed
634
        if name.endswith('*'):
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
            typeobj = self.lookupType(name[:-1].strip())
            return typeobj.GetPointerType() if type.IsValid() else None
        typeobj = self.target.FindFirstType(name)
        #warn("LOOKUP RESULT: %s" % typeobj.name)
        #warn("LOOKUP VALID: %s" % typeobj.IsValid())
        if typeobj.IsValid():
            return typeobj
        try:
            if len(self.types_) == 0:
                for i in xrange(self.target.GetNumModules()):
                    module = self.target.GetModuleAtIndex(i)
                    # SBModule.GetType is new somewhere after early 300.x
                    # So this may fail.
                    for t in module.GetTypes():
                        n = self.canonicalTypeName(t.GetName())
                        self.types_[n] = t
            return self.types_.get(self.canonicalTypeName(name))
        except:
            pass
        return None
655

656
    def setupInferior(self, args):
657
        error = lldb.SBError()
658
659

        self.executable_ = args['executable']
660
661
662
        self.startMode_ = args.get('startMode', 1)
        self.processArgs_ = args.get('processArgs', '')
        self.attachPid_ = args.get('attachPid', 0)
Fawzi Mohamed's avatar
Fawzi Mohamed committed
663
        self.sysRoot_ = args.get('sysRoot', '')
Fawzi Mohamed's avatar
Fawzi Mohamed committed
664
        self.remoteChannel_ = args.get('remoteChannel', '')
665
        self.platform_ = args.get('platform', '')
666

667
668
        if self.platform_:
            self.debugger.SetCurrentPlatform(self.platform_)
Fawzi Mohamed's avatar
Fawzi Mohamed committed
669
670
671
        # sysroot has to be set *after* the platform
        if self.sysRoot_:
            self.debugger.SetCurrentPlatformSDKRoot(self.sysRoot_)
672
        self.target = self.debugger.CreateTarget(self.executable_, None, None, True, error)
673
674
        self.importDumpers()

675
676
        state = "inferiorsetupok" if self.target.IsValid() else "inferiorsetupfailed"
        self.report('state="%s",msg="%s",exe="%s"' % (state, error, self.executable_))
677

678
    def runEngine(self, _):
hjk's avatar
hjk committed
679
680
681
682
        s = threading.Thread(target=self.loop, args=[])
        s.start()

    def loop(self):
683
        error = lldb.SBError()
hjk's avatar
hjk committed
684
685
        listener = self.debugger.GetListener()

686
687
688
        if self.attachPid_ > 0:
            attachInfo = lldb.SBAttachInfo(self.attachPid_)
            self.process = self.target.Attach(attachInfo, error)
689
            if not error.Success():
Fawzi Mohamed's avatar
Fawzi Mohamed committed
690
691
692
                self.report('state="inferiorrunfailed"')
                return
            self.report('pid="%s"' % self.process.GetProcessID())
693
694
695
696
            # even if it stops it seems that lldb assumes it is running and later detects that
            # it did stop after all, so it is be better to mirror that and wait for the spontaneous
            # stop
            self.report('state="enginerunandinferiorrunok"')
Fawzi Mohamed's avatar
Fawzi Mohamed committed
697
698
699
700
        elif len(self.remoteChannel_) > 0:
            self.process = self.target.ConnectRemote(
            self.debugger.GetListener(),
            self.remoteChannel_, None, error)
701
702
703
            if not error.Success():
                self.report('state="inferiorrunfailed"')
                return
704
705
706
707
            # even if it stops it seems that lldb assumes it is running and later detects that
            # it did stop after all, so it is be better to mirror that and wait for the spontaneous
            # stop
            self.report('state="enginerunandinferiorrunok"')
708
        else:
709
            launchInfo = lldb.SBLaunchInfo(self.processArgs_.split())
710
            launchInfo.SetWorkingDirectory(os.getcwd())
711
712
            environmentList = [key + "=" + value for key,value in os.environ.items()]
            launchInfo.SetEnvironmentEntries(environmentList, False)
713
            self.process = self.target.Launch(launchInfo, error)
714
            if not error.Success():
715
716
                self.reportError(error)
                self.report('state="enginerunfailed"')
Fawzi Mohamed's avatar
Fawzi Mohamed committed
717
718
719
                return
            self.report('pid="%s"' % self.process.GetProcessID())
            self.report('state="enginerunandinferiorrunok"')
720

hjk's avatar
hjk committed
721
722
723
724
725
726
        event = lldb.SBEvent()
        while True:
            if listener.WaitForEvent(10000000, event):
                self.handleEvent(event)
            else:
                warn('TIMEOUT')
727

728
    def describeError(self, error):
729
730
731
732
733
734
        desc = lldb.SBStream()
        error.GetDescription(desc)
        result = 'error={type="%s"' % error.GetType()
        result += ',code="%s"' % error.GetError()
        result += ',msg="%s"' % error.GetCString()
        result += ',desc="%s"}' % desc.GetData()
735
736
737
738
        return result

    def reportError(self, error):
        self.report(self.describeError(error))
739
740

    def currentThread(self):
741
        return None if self.process is None else self.process.GetSelectedThread()
742
743

    def currentFrame(self):
744
745
        thread = self.currentThread()
        return None if thread is None else thread.GetSelectedFrame()
746
747
748

    def reportLocation(self):
        thread = self.currentThread()
749
        frame = thread.GetSelectedFrame()
750
751
752
753
        file = fileName(frame.line_entry.file)
        line = frame.line_entry.line
        self.report('location={file="%s",line="%s",addr="%s"}' % (file, line, frame.pc))

754
755
756
    def firstStoppedThread(self):
        for i in xrange(0, self.process.GetNumThreads()):
            thread = self.process.GetThreadAtIndex(i)
757
758
759
760
761
762
            reason = thread.GetStopReason()
            if (reason == lldb.eStopReasonBreakpoint or
                    reason == lldb.eStopReasonException or
                    reason == lldb.eStopReasonPlanComplete or
                    reason == lldb.eStopReasonSignal or
                    reason == lldb.eStopReasonWatchpoint):
763
764
765
                return thread
        return None

766
    def reportThreads(self):
767
768
        reasons = ['None', 'Trace', 'Breakpoint', 'Watchpoint', 'Signal', 'Exception',
            'Exec', 'PlanComplete']
769
        result = 'threads={threads=['
770
        for i in xrange(0, self.process.GetNumThreads()):
771
            thread = self.process.GetThreadAtIndex(i)
772
            stopReason = thread.GetStopReason()
773
774
            result += '{id="%d"' % thread.GetThreadID()
            result += ',index="%s"' % i
775
            result += ',details="%s"' % thread.GetQueueName()
776
777
778
            result += ',stop-reason="%s"' % stopReason
            if stopReason >= 0 and stopReason < len(reasons):
                result += ',state="%s"' % reasons[stopReason]
779
            result += ',name="%s"' % thread.GetName()
780
781
782
783
784
            result += ',frame={'
            frame = thread.GetFrameAtIndex(0)
            result += 'pc="0x%x"' % frame.pc
            result += ',addr="0x%x"' % frame.pc
            result += ',fp="0x%x"' % frame.fp
785
            result += ',func="%s"' % frame.GetFunctionName()
786
787
788
789
790
791
792
793
            result += ',line="%s"' % frame.line_entry.line
            result += ',fullname="%s"' % fileName(frame.line_entry.file)
            result += ',file="%s"' % fileName(frame.line_entry.file)
            result += '}},'

        result += '],current-thread-id="%s"},' % self.currentThread().id
        self.report(result)

794
    def firstUsableFrame(self, thread):
hjk's avatar
hjk committed
795
        for i in xrange(10):
hjk's avatar
hjk committed
796
797
798
799
800
801
802
            frame = thread.GetFrameAtIndex(i)
            lineEntry = frame.GetLineEntry()
            line = lineEntry.GetLine()
            if line != 0:
                return i
        return None

hjk's avatar
hjk committed
803
    def reportStack(self, _ = None):
804
        if not self.process:
805
            self.report('msg="No process"')
806
807
808
809
810
811
812
813
            return
        thread = self.currentThread()
        if not thread:
            self.report('msg="No thread"')
            return
        frame = thread.GetSelectedFrame()
        if frame:
            frameId = frame.GetFrameID()
814
        else:
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
            frameId = 0;
        result = 'stack={current-frame="%s"' % frameId
        result += ',current-thread="%s"' % thread.GetThreadID()
        result += ',frames=['
        n = thread.GetNumFrames()
        for i in xrange(n):
            frame = thread.GetFrameAtIndex(i)
            lineEntry = frame.GetLineEntry()
            line = lineEntry.GetLine()
            usable = line != 0
            result += '{pc="0x%x"' % frame.GetPC()
            result += ',level="%d"' % frame.idx
            result += ',addr="0x%x"' % frame.GetPCAddress().GetLoadAddress(self.target)
            result += ',func="%s"' % frame.GetFunctionName()
            result += ',line="%d"' % line
            result += ',fullname="%s"' % fileName(lineEntry.file)
            result += ',usable="%d"' % usable
            result += ',file="%s"},' % fileName(lineEntry.file)
        result += '],hasmore="0"},'
        self.report(result)
835

836
837
838
839
840
    def putBetterType(self, type):
        try:
            self.currentType = type.GetName()
        except:
            self.currentType = str(type)
841
        self.currentTypePriority = self.currentTypePriority + 1
hjk's avatar
hjk committed
842
        #warn("BETTER TYPE: %s PRIORITY: %s" % (type, self.currentTypePriority))
hjk's avatar
hjk committed
843

hjk's avatar
hjk committed
844
    def extractBlob(self, base, size):
hjk's avatar
hjk committed
845
        if size == 0:
hjk's avatar
hjk committed
846
            return Blob("")
847
848
        base = int(base) & 0xFFFFFFFFFFFFFFFF
        size = int(size) & 0xFFFFFFFF
hjk's avatar
hjk committed
849
        error = lldb.SBError()
hjk's avatar
hjk committed
850
        return Blob(self.process.ReadMemory(base, size, error))
hjk's avatar
hjk committed
851

852
853
854
855
856
857
858
859
860
861
    def toBlob(self, value):
        data = value.GetData()
        size = int(data.GetByteSize())
        buf = bytearray(struct.pack('x' * size))
        error = lldb.SBError()
        #data.ReadRawData(error, 0, buf)
        for i in range(size):
            buf[i] = data.GetUnsignedInt8(error, i)
        return Blob(bytes(buf))

862
863
864
    def extractStaticMetaObjectHelper(self, typeobj):
        if typeobj.GetTypeClass() in (lldb.eTypeClassStruct, lldb.eTypeClassClass):
            needle = typeobj.GetUnqualifiedType().GetName() + "::staticMetaObject"
865
866
867
868
869
870
871
872
            options = lldb.SBExpressionOptions()
            result = self.target.EvaluateExpression(needle, options)
            # Surprising results include:
            # (lldb) script print lldb.target.FindFirstGlobalVariable(
            # '::QSharedDataPointer<QDirPrivate>::staticMetaObject')
            # (const QMetaObject) QAbstractAnimation::staticMetaObject = { d = { ... } }
            #if result.GetName() != needle:
            if result is None or not result.IsValid():
873
874
875
876
877
878
                result = 0
        else:
            result = 0
        self.knownStaticMetaObjects[typeobj.GetName()] = result
        return result

879
    def extractStaticMetaObject(self, typeobj):
hjk's avatar
hjk committed
880
881
        if not self.isGoodLldb:
            return 0
882
883
884
885
886
        result = self.extractStaticMetaObjectHelper(typeobj)
        if result:
            return result
        base = typeobj.GetDirectBaseClassAtIndex(0).GetType()
        return self.extractStaticMetaObjectHelper(base)
hjk's avatar
hjk committed
887

888
889
890
    def stripNamespaceFromType(self, typeName):
        #type = stripClassTag(typeName)
        type = typeName
891
892
893
        ns = self.qtNamespace()
        if len(ns) > 0 and type.startswith(ns):
            type = type[len(ns):]
894
895
896
897
898
899
        pos = type.find("<")
        # FIXME: make it recognize  foo<A>::bar<B>::iterator?
        while pos != -1:
            pos1 = type.rfind(">", pos)
            type = type[0:pos] + type[pos1+1:]
            pos = type.find("<")
hjk's avatar
hjk committed
900
901
902
903
        if type.startswith("const "):
            type = type[6:]
        if type.startswith("volatile "):
            type = type[9:]
904
905
906
        return type

    def putSubItem(self, component, value, tryDynamic=True):
907
        if not value.IsValid():
908
            warn("INVALID SUBITEM: %s" % value.GetName())
909
            return
910
911
912
        with SubItem(self, component):
            self.putItem(value, tryDynamic)

hjk's avatar
hjk committed
913
    def putAddress(self, addr):
914
915
916
917
        #if int(addr) == 0xffffffffffffffff:
        #    raise RuntimeError("Illegal address")
        if self.currentPrintsAddress and not addr is None:
            self.put('addr="0x%x",' % int(addr))
hjk's avatar
hjk committed
918

hjk's avatar
hjk committed
919
920
921
922
923
    def isFunctionType(self, typeobj):
        if self.isGoodLldb:
            return typeobj.IsFunctionType()
        #warn("TYPE: %s" % typeobj)
        return False
hjk's avatar
hjk committed
924

925
    def putItem(self, value, tryDynamic=True):
hjk's avatar
hjk committed
926
        #value = value.GetDynamicValue(lldb.eDynamicCanRunTarget)
927
        typeName = value.GetType().GetUnqualifiedType().GetName()
hjk's avatar
hjk committed
928
929
        if self.isGoodLldb:
            value.SetPreferDynamicValue(tryDynamic)
hjk's avatar
hjk committed
930
        typeClass = value.GetType().GetTypeClass()
931

hjk's avatar
hjk committed
932
        if tryDynamic:
933
            self.putAddress(value.GetLoadAddress())
hjk's avatar
hjk committed
934

935
        # Handle build-in LLDB visualizers if wanted.
936
        if False and self.useLldbDumpers and value.GetTypeSynthetic().IsValid():
937
938
939
940
            # FIXME: print "official" summary?
            summary = value.GetTypeSummary()
            if summary.IsValid():
                warn("DATA: %s" % summary.GetData())
hjk's avatar
hjk committed
941
942
            if self.isGoodLldb:
                value.SetPreferSyntheticValue(False)
943
944
945
946
947
            provider = value.GetTypeSynthetic()
            data = provider.GetData()
            formatter = eval(data)(value, {})
            formatter.update()
            numchild = formatter.num_children()
hjk's avatar
hjk committed
948
            self.put('iname="%s",' % self.currentIName)
hjk's avatar
hjk committed
949
            self.putType(typeName)
hjk's avatar
hjk committed
950
951
            self.put('numchild="%s",' % numchild)
            self.put('addr="0x%x",' % value.GetLoadAddress())
952
            self.putItemCount(numchild)
hjk's avatar
hjk committed
953
954
            if self.currentIName in self.expandedINames:
                with Children(self):
955
956
957
958
959
960
                    for i in xrange(numchild):
                        child = formatter.get_child_at_index(i)
                        with SubItem(self, i):
                            self.putItem(child)
            return

hjk's avatar
hjk committed
961
962
        # Typedefs
        if typeClass == lldb.eTypeClassTypedef:
963
            if typeName in self.qqDumpers:
hjk's avatar
hjk committed
964
965
                self.putType(typeName)
                self.context = value
966
                self.qqDumpers[typeName](self, value)
hjk's avatar
hjk committed
967
                return
hjk's avatar
hjk committed
968
969
            realType = value.GetType()
            if hasattr(realType, 'GetCanonicalType'):
970
971
972
973
                baseType = realType.GetCanonicalType()
                baseValue = value.Cast(baseType.unqualified())
                self.putItem(baseValue)
                self.putBetterType(realType)
hjk's avatar
hjk committed
974
                return
hjk's avatar
hjk committed
975

976
        # Our turf now.
hjk's avatar
hjk committed
977
978
        if self.isGoodLldb:
            value.SetPreferSyntheticValue(False)
979

980
        # Arrays
hjk's avatar
hjk committed
981
        if typeClass == lldb.eTypeClassArray:
982
            self.putCStyleArray(value)
983
984
            return

985
986
        # Vectors like char __attribute__ ((vector_size (8)))
        if typeClass == lldb.eTypeClassVector:
987
            self.putCStyleArray(value)
988
989
            return

990
991
        # References
        if value.GetType().IsReferenceType():
hjk's avatar
hjk committed
992
            origType = value.GetTypeName();
hjk's avatar
hjk committed
993
            type = value.GetType().GetDereferencedType().unqualified()
hjk's avatar
hjk committed
994
            addr = int(value) & 0xFFFFFFFFFFFFFFFF
hjk's avatar
hjk committed
995
            self.putItem(value.CreateValueFromAddress(None, addr, type))
hjk's avatar
hjk committed
996
            self.putBetterType(origType)
997
998
            return

hjk's avatar
hjk committed
999
        # Pointers
hjk's avatar
hjk committed
1000
        if value.GetType().IsPointerType():
hjk's avatar
hjk committed
1001
1002
            self.putFormattedPointer(value)
            return
hjk's avatar
hjk committed
1003

1004
        #warn("VALUE: %s" % value)
hjk's avatar
hjk committed
1005
1006
1007
1008
        #warn("FANCY: %s" % self.useFancy)
        if self.useFancy:
            stripped = self.stripNamespaceFromType(typeName).replace("::", "__")
            #warn("STRIPPED: %s" % stripped)
1009
1010
            #warn("DUMPABLE: %s" % (stripped in self.qqDumpers))
            if stripped in self.qqDumpers:
hjk's avatar
hjk committed
1011
                self.putType(typeName)
hjk's avatar
hjk committed
1012
                self.context = value
1013
                self.qqDumpers[stripped](self, value)
hjk's avatar
hjk committed
1014
                return
1015
1016
1017
1018

        # Normal value
        #numchild = 1 if value.MightHaveChildren() else 0
        numchild = value.GetNumChildren()
hjk's avatar
hjk committed
1019
        self.putType(typeName)
1020
1021
1022
1023
1024
        self.putEmptyValue(-1)
        staticMetaObject = self.extractStaticMetaObject(value.GetType())
        if staticMetaObject:
            self.context = value
            self.putQObjectNameValue(value)
hjk's avatar
hjk committed
1025
1026
1027
1028
1029
        else:
            v = value.GetValue()
            if v:
                self.putValue(v)

1030
        self.put('numchild="%s",' % numchild)
1031

1032
1033
1034
        if self.currentIName in self.expandedINames:
            with Children(self):
                self.putFields(value)
1035
1036
                if staticMetaObject:
                    self.putQObjectGuts(value, staticMetaObject)
1037

1038
1039
1040
    def warn(self, msg):
        self.put('{name="%s",value="",type=""},' % msg)

1041
    def putFields(self, value):
1042
1043
1044
1045
        # Suppress printing of 'name' field for arrays.
        if value.GetType().GetTypeClass() == lldb.eTypeClassArray:
            for i in xrange(value.GetNumChildren()):
                child = value.GetChildAtIndex(i)
1046
                with UnnamedSubItem(self, str(i)):
1047
1048
1049
                    self.putItem(child)
            return

1050
        n = value.GetNumChildren()
hjk's avatar