dumper.py 28.1 KB
Newer Older
hjk's avatar
hjk committed
1
2
3
4
5
6
7
8

#Note: Keep name-type-value-numchild-extra order

#return

import sys
import traceback
import gdb
9
import base64
hjk's avatar
hjk committed
10
11
import curses.ascii

12
13
14
15
# only needed for gdb 7.0
import os
import tempfile

hjk's avatar
hjk committed
16
17
18
verbosity = 0
verbosity = 1

19
20
21
22
23
def select(condition, if_expr, else_expr):
    if condition:
        return if_expr
    return else_expr

24
25
26
27
28
def qmin(n, m):
    if n < m:
        return n
    return m

hjk's avatar
hjk committed
29
30
31
32
def isGoodGdb():
    return gdb.VERSION.startswith("6.8.50.2009") \
       and gdb.VERSION != "6.8.50.20090630-cvs"

33
def parseAndEvaluate(exp):
hjk's avatar
hjk committed
34
    if isGoodGdb():
35
36
37
38
39
40
41
42
43
44
45
46
47
        return gdb.parse_and_eval(exp)
    # Work around non-existing gdb.parse_and_eval as in released 7.0
    gdb.execute("set logging redirect on")
    gdb.execute("set logging on")
    gdb.execute("print %s" % exp)
    gdb.execute("set logging off")
    return gdb.history(0)

def listOfLocals():
    try:
        frame = gdb.selected_frame()
        #warn("FRAME %s: " % frame)
    except RuntimeError:
hjk's avatar
hjk committed
48
        return []
49
50

    items = []
hjk's avatar
hjk committed
51
    if isGoodGdb():
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
        # archer-tromey-python
        block = frame.block()
        while True:
            if block is None:
                warn("UNEXPECTED 'None' BLOCK")
                break
            for symbol in block:
                name = symbol.print_name
                
                if name == "__in_chrg":
                    continue

                # "NotImplementedError: Symbol type not yet supported in
                # Python scripts."
                #warn("SYMBOL %s: " % symbol.value)
                #warn("SYMBOL %s  (%s): " % (symbol, name))
                item = Item(0, "local", name, name)
                try:
                    item.value = frame.read_var(name)  # this is a gdb value
                except RuntimeError:
                    # happens for  void foo() { std::string s; std::wstring w; }
                    #warn("  FRAME READ VAR ERROR: %s (%s): " % (symbol, name))
                    continue
                #warn("ITEM %s: " % item.value)
                items.append(item)
            # The outermost block in a function has the function member
            # FIXME: check whether this is guaranteed.
            if not block.function is None:
                break

            block = block.superblock
    else:
hjk's avatar
hjk committed
84
        # Assuming gdb 7.0 release or 6.8-symbianelf.
85
86
        file = tempfile.mkstemp(prefix="gdbpy_")
        filename = file[1]
hjk's avatar
hjk committed
87
88
        gdb.execute("set logging off")
        gdb.execute("set logging redirect off")
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
        gdb.execute("set logging file %s" % filename)
        gdb.execute("set logging redirect on")
        gdb.execute("set logging on")
        gdb.execute("info locals")
        gdb.execute("info args")
        gdb.execute("set logging off")
        gdb.execute("set logging redirect off")
        file = open(filename, "r")
        for line in file:
            if len(line) == 0 or line.startswith(" "):
                continue
            pos = line.find(" = ")
            if pos < 0:
                continue
            name = line[0:pos]
            item = Item(0, "local", name, name)
            try:
                item.value = frame.read_var(name)  # this is a gdb value
            except RuntimeError:
                continue
            items.append(item)
        file.close()
        os.remove(filename)

    return items


116
def value(expr):
117
    value = parseAndEvaluate(expr)
118
119
120
121
122
    try:
        return int(value)
    except:
        return str(value)

123

hjk's avatar
hjk committed
124
125
126
127
128
129
130
131
132
133
134
135
def isSimpleType(typeobj):
    type = str(typeobj)
    return type == "bool" \
        or type == "char" \
        or type == "double" \
        or type == "float" \
        or type == "int" \
        or type == "long" or type.startswith("long ") \
        or type == "short" or type.startswith("short ") \
        or type == "signed" or  type.startswith("signed ") \
        or type == "unsigned" or type.startswith("unsigned ")

136

hjk's avatar
hjk committed
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
def isStringType(d, typeobj):
    type = str(typeobj)
    return type == d.ns + "QString" \
        or type == d.ns + "QByteArray" \
        or type == "std::string" \
        or type == "std::wstring" \
        or type == "wstring"

def warn(message):
    if verbosity > 0:
        print "XXX: %s " % message.encode("latin1")
    pass

def check(exp):
    if not exp:
        raise RuntimeError("Check failed")

154
155
156
157
158
def checkRef(ref):
    count = ref["_q_value"]
    check(count > 0)
    check(count < 1000000) # assume there aren't a million references to any object

hjk's avatar
hjk committed
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
#def couldBePointer(p, align):
#    type = gdb.lookup_type("unsigned int")
#    ptr = gdb.Value(p).cast(type)
#    d = int(str(ptr))
#    warn("CHECKING : %s %d " % (p, ((d & 3) == 0 and (d > 1000 or d == 0))))
#    return (d & (align - 1)) and (d > 1000 or d == 0)


def checkAccess(p, align = 1):
    return p.dereference()

def checkContents(p, expected, align = 1):
    if int(p.dereference()) != expected:
        raise RuntimeError("Contents check failed")

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


def isNull(p):
180
181
182
183
184
    # The following can cause evaluation to abort with "UnicodeEncodeError"
    # for invalid char *, as their "contents" is being examined
    #s = str(p)
    #return s == "0x0" or s.startswith("0x0 ")
    return p.cast(gdb.lookup_type("unsigned long long")) == 0
hjk's avatar
hjk committed
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210

movableTypes = set([
    "QBrush", "QBitArray", "QByteArray",
    "QCustomTypeInfo", "QChar",
    "QDate", "QDateTime",
    "QFileInfo", "QFixed", "QFixedPoint", "QFixedSize",
    "QHashDummyValue",
    "QIcon", "QImage",
    "QLine", "QLineF", "QLatin1Char", "QLocal",
    "QMatrix", "QModelIndex",
    "QPoint", "QPointF", "QPen", "QPersistentModelIndex",
    "QResourceRoot", "QRect", "QRectF", "QRegExp",
    "QSize", "QSizeF", "QString",
    "QTime", "QTextBlock",
    "QUrl",
    "QVariant",
    "QXmlStreamAttribute", "QXmlStreamNamespaceDeclaration",
    "QXmlStreamNotationDeclaration", "QXmlStreamEntityDeclaration"])


def stripClassTag(type):
    if type.startswith("class "):
        return type[6:]
    return type

def checkPointerRange(p, n):
211
    for i in xrange(n):
hjk's avatar
hjk committed
212
213
214
215
216
217
        checkPointer(p)
        ++p

def call(value, func):
    #warn("CALL: %s -> %s" % (value, func))
    type = stripClassTag(str(value.type))
218
    if type.find(":") >= 0:
hjk's avatar
hjk committed
219
220
221
        type = "'" + type + "'"
    exp = "((%s*)%s)->%s" % (type, value.address, func)
    #warn("CALL: %s" % exp)
222
    result = parseAndEvaluate(exp)
hjk's avatar
hjk committed
223
224
225
    #warn("  -> %s" % result)
    return result

226
227
def qtNamespace():
    try:
228
        type = str(parseAndEvaluate("&QString::null").type.target().unqualified())
229
230
231
        return type[0:len(type) - len("QString::null")]
    except RuntimeError:
        return ""
hjk's avatar
hjk committed
232

233
234
def encodeCharArray(p, size):
    s = ""
235
    for i in xrange(size):
236
237
238
239
        s += "%02x" % int(p.dereference())
        p += 1
    return s

240
241
242
243
244
245
def encodeByteArray(value):
    d_ptr = value['d'].dereference()
    data = d_ptr['data']
    size = d_ptr['size']
    alloc = d_ptr['alloc']
    check(0 <= size and size <= alloc and alloc <= 100*1000*1000)
246
    checkRef(d_ptr["ref"])
247
248
249
250
251
252
    if size > 0:
        checkAccess(data, 4)
        checkAccess(data + size) == 0

    innerType = gdb.lookup_type("char")
    p = gdb.Value(data.cast(innerType.pointer()))
253
    return encodeCharArray(p, size)
254
255
256
257
258
259
260
261
262
263

def encodeString(value):
    d_ptr = value['d'].dereference()
    data = d_ptr['data']
    size = d_ptr['size']
    alloc = d_ptr['alloc']
    check(0 <= size and size <= alloc and alloc <= 100*1000*1000)
    if size > 0:
        checkAccess(data, 4)
        checkAccess(data + size * 2) == 0
264
    checkRef(d_ptr["ref"])
265
266
    p = gdb.Value(d_ptr["data"])
    s = ""
267
    for i in xrange(size):
268
269
270
271
272
273
        val = int(p.dereference())
        s += "%02x" % (val % 256)
        s += "%02x" % (val / 256)
        p += 1
    return s

hjk's avatar
hjk committed
274
275
276
277
278
279
280
#######################################################################
#
# Item
#
#######################################################################

class Item:
281
    def __init__(self, value, parentiname, iname, name = None):
hjk's avatar
hjk committed
282
        self.value = value
283
284
285
286
        if iname is None:
            self.iname = parentiname
        else:
            self.iname = "%s.%s" % (parentiname, iname)
hjk's avatar
hjk committed
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
        self.name = name


#######################################################################
#
# FrameCommand
#
#######################################################################

class FrameCommand(gdb.Command):
    """Do fancy stuff. Usage bb --verbose expandedINames"""

    def __init__(self):
        super(FrameCommand, self).__init__("bb", gdb.COMMAND_OBSCURE)

    def invoke(self, arg, from_tty):
        args = arg.split(' ')
        #warn("ARG: %s" % arg)
        #warn("ARGS: %s" % args)
        useFancy = int(args[0])
        passExceptions = int(args[1])
        expandedINames = set()
        if len(args) > 2:
310
            expandedINames = set(args[2].split(","))
hjk's avatar
hjk committed
311
312
313
314
        #warn("EXPANDED INAMES: %s" % expandedINames)
        module = sys.modules[__name__]
        self.dumpers = {}

hjk's avatar
hjk committed
315
316
317
        if useFancy == -1:
            output = "dumpers=["
            for key, value in module.__dict__.items():
318
                if key.startswith("qdump__"):
hjk's avatar
hjk committed
319
320
                    if output != "dumpers=[":
                        output += ","
321
                    output += '"' + key[7:] + '"'
hjk's avatar
hjk committed
322
323
324
325
326
327
328
329
330
331
332
            output += "],"
            #output += "qtversion=[%d,%d,%d]"
            output += "qtversion=[4,6,0],"
            output += "namespace=\"%s\"," % qtNamespace()
            output += "dumperversion=\"2.0\","
            output += "sizes=[],"
            output += "expressions=[]"
            output += "]"
            print output
            return
  
333

hjk's avatar
hjk committed
334
335
336
        if useFancy:
            for key, value in module.__dict__.items():
                #if callable(value):
337
338
                if key.startswith("qdump__"):
                    self.dumpers[key[7:]] = value
hjk's avatar
hjk committed
339
340
341
342

        d = Dumper()
        d.dumpers = self.dumpers
        d.passExceptions = passExceptions
343
        d.ns = qtNamespace()
344
345
        d.expandedINames = expandedINames
        d.useFancy = useFancy
hjk's avatar
hjk committed
346
347
        #warn(" NAMESPACE IS: '%s'" % d.ns)

348
349
350
        #
        # Locals
        #
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
        for item in listOfLocals():
            #warn("ITEM %s: " % item.value)

            type = item.value.type
            if type.code == gdb.TYPE_CODE_PTR \
                    and item.name == "argv" and str(type) == "char **":
                # Special handling for char** argv:
                n = 0
                p = item.value
                while not isNull(p.dereference()) and n <= 100:
                    p += 1
                    n += 1

                d.beginHash()
                d.put('iname="%s",' % item.iname)
                d.putName(item.name)
                d.putItemCount(select(n <= 100, n, "> 100"))
                d.putType(type)
                d.putNumChild(n)
                if d.isExpanded(item):
371
                    p = item.value
372
                    d.beginChildren(n)
373
                    for i in xrange(n):
374
375
                        value = p.dereference()
                        d.putItem(Item(value, item.iname, i, None))
376
                        p += 1
377
378
379
380
381
382
383
384
385
386
387
388
                    if n > 100:
                        d.putEllipsis()
                    d.endChildren()
                d.endHash()

            else:
                # A "normal" local variable or parameter
                d.beginHash()
                d.put('iname="%s",' % item.iname)
                d.put('addr="%s",' % item.value.address)
                d.safePutItemHelper(item)
                d.endHash()
hjk's avatar
hjk committed
389

390
391
392
393
        d.pushOutput()
        locals = d.safeoutput


394
395
396
        #
        # Watchers
        #
397
398
399
400
        d.safeoutput = ""
        watchers = ""
        if len(args) > 3:
            watchers = base64.b16decode(args[3], True)
401
402
403
404
        if len(watchers) > 0:
            for watcher in watchers.split("$$"):
                (exp, name) = watcher.split("$")
                self.handleWatch(d, exp, name)
405
406
407
408
409
410
411
412
413
414
        d.pushOutput()
        watchers = d.safeoutput

        print('locals={iname="local",name="Locals",value=" ",type=" ",'
            + 'children=[' + locals + ']},'
            + 'watchers={iname="watch",name="Watchers",value=" ",type=" ",'
            + 'children=[' + watchers + ']}')


    def handleWatch(self, d, exp, name):
415
        #warn("HANDLING WATCH %s, NAME: %s" % (exp, name))
416
        if exp.startswith("["):
417
            #warn("EVAL: EXP: %s" % exp)
418
419
420
            d.beginHash()
            d.put('iname="watch.%s",' % name)
            d.put('name="%s",' % exp)
421
            d.put('exp="%s",' % exp)
422
423
            try:
                list = eval(exp)
424
                #warn("EVAL: LIST: %s" % list)
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
                d.put('value=" "')
                d.put('type=" "')
                d.put('numchild="%d"' % len(list))
                # This is a list of expressions to evaluate
                d.beginChildren(len(list))
                itemNumber = 0
                for item in list:
                    self.handleWatch(d, item, "%s.%d" % (name, itemNumber))
                    itemNumber += 1
                d.endChildren()
            except:
                warn("EVAL: ERROR CAUGHT")
                d.put('value="<syntax error>"')
                d.put('type=" "')
                d.put('numchild="0"')
                d.beginChildren(0)
                d.endChildren()
            d.endHash()
            return

        d.beginHash()
        d.put('iname="watch.%s",' % name)
        d.put('name="%s",' % exp)
448
        d.put('exp="%s",' % exp)
449
450
451
452
453
        handled = False
        if exp == "<Edit>":
            d.put(',value=" ",')
            d.put('type=" ",numchild="0"')
        else:
454
            try:
455
                value = parseAndEvaluate(exp)
456
                item = Item(value, "watch", None, None)
457
                d.safePutItemHelper(item)
458
            except RuntimeError:
459
460
461
                d.put(',value="<invalid>",')
                d.put('type="<unknown>",numchild="0"')
        d.endHash()
462

hjk's avatar
hjk committed
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479

FrameCommand()



#######################################################################
#
# The Dumper Class
#
#######################################################################

class Dumper:
    def __init__(self):
        self.output = ""
        self.safeoutput = ""
        self.childTypes = [""]
        self.childNumChilds = [-1]
480
481
        self.maxNumChilds = [-1]
        self.numChilds = [-1]
hjk's avatar
hjk committed
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511

    def put(self, value):
        self.output += value

    def putCommaIfNeeded(self):
        c = self.output[-1:]
        if c == '}' or c == '"' or c == ']' or c == '\n':
            self.put(',')
        #warn("C:'%s' COND:'%d' OUT:'%s'" %
        #    (c, c == '}' or c == '"' or c == ']' or c == '\n', self.output))

    def putField(self, name, value):
        self.putCommaIfNeeded()
        self.put('%s="%s"' % (name, value))

    def beginHash(self):
        self.putCommaIfNeeded()
        self.put('{')

    def endHash(self):
        self.put('}')

    def beginItem(self, name):
        self.putCommaIfNeeded()
        self.put(name)
        self.put('="')

    def endItem(self):
        self.put('"')

512
    def beginChildren(self, numChild_ = 1, childType_ = None, childNumChild_ = None):
hjk's avatar
hjk committed
513
514
        childType = ""
        childNumChild = -1
515
516
517
518
519
520
        if type(numChild_) is list:
            numChild = numChild_[0]
            maxNumChild = numChild_[1]
        else:
            numChild = numChild_
            maxNumChild = numChild_
521
        if numChild == 0:
522
            childType_ = None
523
        self.putCommaIfNeeded()
524
525
        if not childType_ is None:
            childType = stripClassTag(str(childType_))
526
            self.put('childtype="%s",' % childType)
527
            if isSimpleType(childType_) or isStringType(self, childType_):
528
                self.put('childnumchild="0",')
hjk's avatar
hjk committed
529
                childNumChild = 0
530
            elif childType_.code == gdb.TYPE_CODE_PTR:
531
                self.put('childnumchild="1",')
hjk's avatar
hjk committed
532
                childNumChild = 1
533
534
535
        if not childNumChild_ is None:
            self.put('childnumchild="%s",' % childNumChild_)
            childNumChild = childNumChild_
hjk's avatar
hjk committed
536
537
        self.childTypes.append(childType)
        self.childNumChilds.append(childNumChild)
538
539
        self.numChilds.append(numChild)
        self.maxNumChilds.append(maxNumChild)
hjk's avatar
hjk committed
540
541
542
543
544
        #warn("BEGIN: %s" % self.childTypes)
        self.put("children=[")

    def endChildren(self):
        #warn("END: %s" % self.childTypes)
545
546
547
548
        numChild = self.numChilds.pop()
        maxNumChild = self.maxNumChilds.pop()
        if maxNumChild < numChild:
            self.putEllipsis();
hjk's avatar
hjk committed
549
550
551
552
        self.childTypes.pop()
        self.childNumChilds.pop()
        self.put(']')

553
554
555
    def childRange(self):
        return xrange(qmin(self.maxNumChilds[-1], self.numChilds[-1]))

hjk's avatar
hjk committed
556
557
558
559
560
561
562
563
564
565
566
567
568
569
    # convenience
    def putItemCount(self, count):
        self.putCommaIfNeeded()
        self.put('value="<%s items>"' % count)

    def putEllipsis(self):
        self.putCommaIfNeeded()
        self.put('{name="<incomplete>",value="",type="",numchild="0"}')

    def putType(self, type):
        #warn("TYPES: '%s' '%s'" % (type, self.childTypes))
        #warn("  EQUAL 2: %s " % (str(type) == self.childTypes[-1]))
        type = stripClassTag(str(type))
        if len(type) > 0 and type != self.childTypes[-1]:
570
571
            self.putCommaIfNeeded()
            self.put('type="%s"' % type) # str(type.unqualified()) ?
hjk's avatar
hjk committed
572
573
574

    def putNumChild(self, numchild):
        #warn("NUM CHILD: '%s' '%s'" % (numchild, self.childNumChilds[-1]))
575
576
        if numchild != self.childNumChilds[-1]:
            self.put(',numchild="%s"' % numchild)
hjk's avatar
hjk committed
577

578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
    def putValue(self, value, encoding = None):
        if not encoding is None:
            self.putField("valueencoded", encoding)
        self.putField("value", value)

    def putStringValue(self, value):
        str = encodeString(value)
        self.putCommaIfNeeded()
        self.put('valueencoded="%d",value="%s"' % (7, str))

    def putByteArrayValue(self, value):
        str = encodeByteArray(value)
        self.putCommaIfNeeded()
        self.put('valueencoded="%d",value="%s"' % (6, str))
    
    def putName(self, name):
        self.putCommaIfNeeded()
        self.put('name="%s"' % name)

hjk's avatar
hjk committed
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
    def isExpanded(self, item):
        #warn("IS EXPANDED: %s in %s" % (item.iname, self.expandedINames))
        if item.iname is None:
            raise "Illegal iname 'None'"
        if item.iname.startswith("None"):
            raise "Illegal iname '%s'" % item.iname
        #warn("   --> %s" % (item.iname in self.expandedINames))
        return item.iname in self.expandedINames

    def isExpandedIName(self, iname):
        return iname in self.expandedINames

    def unputField(self, name):
        pos = self.output.rfind(",")
        if self.output[pos + 1:].startswith(name):
            self.output = self.output[0:pos]

    def stripNamespaceFromType(self, typeobj):
615
616
617
618
619
        # This breaks for dumpers type names containing '__star'.
        # But this should not happen as identifiers containing two
        # subsequent underscores are reserved for the implemention.
        if typeobj.code == gdb.TYPE_CODE_PTR:
            return self.stripNamespaceFromType(typeobj.target()) + "__star"
hjk's avatar
hjk committed
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
        # FIXME: pass ns from plugin
        type = stripClassTag(str(typeobj))
        if len(self.ns) > 0 and type.startswith(self.ns):
            type = type[len(self.ns):]
        pos = type.find("<")
        if pos != -1:
            type = type[0:pos]
        return type

    def isMovableType(self, type):
        if type.code == gdb.TYPE_CODE_PTR:
            return True
        if isSimpleType(type):
            return True
        return self.stripNamespaceFromType(type) in movableTypes

    def putIntItem(self, name, value):
        self.beginHash()
638
639
        self.putName(name)
        self.putValue(value)
hjk's avatar
hjk committed
640
641
642
643
644
645
        self.putType("int")
        self.putNumChild(0)
        self.endHash()

    def putBoolItem(self, name, value):
        self.beginHash()
646
647
        self.putName(name)
        self.putValue(value)
hjk's avatar
hjk committed
648
649
650
651
652
653
654
655
656
        self.putType("bool")
        self.putNumChild(0)
        self.endHash()

    def pushOutput(self):
        #warn("PUSH OUTPUT: %s " % self.output)
        self.safeoutput += self.output
        self.output = ""

657
    def dumpInnerValueHelper(self, item):
hjk's avatar
hjk committed
658
        if isSimpleType(item.value.type):
659
            self.safePutItemHelper(item)
hjk's avatar
hjk committed
660

661
662
663
664
665
    def safePutItem(self, item):
        self.beginHash()
        self.safePutItemHelper(item)
        self.endHash()

hjk's avatar
hjk committed
666
667
668
669
670
671
672
673
674
675
676
677
    def safePutItemHelper(self, item):
        self.pushOutput()
        # This is only used at the top level to ensure continuation
        # after failures due to uninitialized or corrupted data.
        if self.passExceptions:
            # for debugging reasons propagate errors.
            self.putItemHelper(item)

        else:
            try:
                self.putItemHelper(item)

678
            except RuntimeError:
hjk's avatar
hjk committed
679
680
681
682
                self.output = ""
                # FIXME: Only catch debugger related exceptions
                #exType, exValue, exTraceback = sys.exc_info()
                #tb = traceback.format_exception(exType, exValue, exTraceback)
683
                #warn("Exception: %s" % ex.message)
hjk's avatar
hjk committed
684
685
686
687
688
                # DeprecationWarning: BaseException.message
                # has been deprecated
                #warn("Exception.")
                #for line in tb:
                #    warn("%s" % line)
689
690
691
692
                self.putName(item.name)
                self.putValue("<invalid>")
                self.putType(str(item.value.type))
                self.putNumChild(0)
hjk's avatar
hjk committed
693
694
695
696
697
698
699
                #if self.isExpanded(item):
                self.beginChildren()
                self.endChildren()
        self.pushOutput()

    def putItem(self, item):
        self.beginHash()
hjk's avatar
hjk committed
700
        self.safePutItemHelper(item)
hjk's avatar
hjk committed
701
702
703
704
705
706
        self.endHash()

    def putCallItem(self, name, item, func):
        result = call(item.value, func)
        self.putItem(Item(result, item.iname, name, name))

707
    def putItemHelper(self, item):
hjk's avatar
hjk committed
708
709
        name = getattr(item, "name", None)
        if not name is None:
710
            self.putName(name)
hjk's avatar
hjk committed
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734

        # FIXME: Gui shows references stripped?
        #warn("REAL INAME: %s " % item.iname)
        #warn("REAL TYPE: %s " % item.value.type)
        #warn("REAL VALUE: %s " % item.value)

        value = item.value
        type = value.type

        if type.code == gdb.TYPE_CODE_REF:
            type = type.target()
            value = value.cast(type)

        if type.code == gdb.TYPE_CODE_TYPEDEF:
            type = type.target()

        strippedType = self.stripNamespaceFromType(
            type.strip_typedefs().unqualified()).replace("::", "__")
        
        #warn(" STRIPPED: %s" % strippedType)
        #warn(" DUMPERS: %s" % self.dumpers)
        #warn(" DUMPERS: %s" % (strippedType in self.dumpers))

        if isSimpleType(type):
735
736
            #warn("IS SIMPLE: %s " % type)
            self.putType(item.value.type)
737
738
            self.putValue(value)
            self.putNumChild(0)
hjk's avatar
hjk committed
739
740

        elif strippedType in self.dumpers:
741
742
            #warn("IS DUMPABLE: %s " % type)
            self.putType(item.value.type)
hjk's avatar
hjk committed
743
744
745
746
            self.dumpers[strippedType](self, item)

        elif type.code == gdb.TYPE_CODE_ENUM:
            #warn("GENERIC ENUM: %s" % value)
747
            self.putType(item.value.type)
748
            self.putValue(value)
hjk's avatar
hjk committed
749
750
751
752
            self.putNumChild(0)
            

        elif type.code == gdb.TYPE_CODE_PTR:
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
            if self.useFancy:
                #warn("A POINTER: %s" % value.type)
                isHandled = False
                if isNull(value):
                    self.putValue("0x0")
                    self.putType(item.value.type)
                    self.putNumChild(0)
                    isHandled = True

                target = str(type.target().unqualified())
                if target == "void" and not isHandled:
                    self.putType(item.value.type)
                    self.putValue(str(value))
                    self.putNumChild(0)
                    isHandled = True

                if target == "char" and not isHandled:
                    # Display values up to given length directly
                    self.putType(item.value.type)
                    firstNul = -1
                    p = value
774
                    for i in xrange(100):
775
776
777
778
779
780
781
782
783
784
785
786
787
                        if p.dereference() == 0:
                            # Found terminating NUL
                            self.putValue(encodeCharArray(value, i), "6")
                            self.putNumChild(0)
                            isHandled = True
                            break
                        p += 1

                if not isHandled:
                    ## Generic pointer type.
                    #warn("GENERIC POINTER: %s" % value)
                    innerType = item.value.type.target()
                    self.putType(innerType)
788
                    self.childTypes.append(
789
790
                        stripClassTag(str(innerType)))
                    self.putItemHelper(
791
                        Item(item.value.dereference(), item.iname, None, None))
792
                    self.childTypes.pop()
793
794
795
796
797
798
799
800
801
            else:
                self.putType(item.value.type)
                self.putValue(str(value.address))
                self.putNumChild(1)
                if self.isExpanded(item):
                    self.beginChildren()
                    self.putItem(
                          Item(item.value.dereference(), item.iname, "*", "*"))
                    self.endChildren()
hjk's avatar
hjk committed
802
803
804
805

        else:
            #warn("INAME: %s " % item.iname)
            #warn("INAMES: %s " % self.expandedINames)
806
            #warn("EXPANDED: %s " % (item.iname in self.expandedINames))
hjk's avatar
hjk committed
807
808
809
810
811

            # insufficient, see http://sourceware.org/bugzilla/show_bug.cgi?id=10953
            #fields = value.type.fields()
            fields = value.type.strip_typedefs().fields()

812
            self.putType(item.value.type)
813
            self.putValue("{...}")
hjk's avatar
hjk committed
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828

            if False:
                numfields = 0
                for field in fields:
                    bitpos = getattr(field, "bitpos", None)
                    if not bitpos is None:
                        ++numfields
            else:
                numfields = len(fields)
            self.putNumChild(numfields)

            if self.isExpanded(item):
                innerType = None
                if len(fields) == 1 and fields[0].name is None:
                    innerType = value.type.target()
829
                self.beginChildren(1, innerType)
hjk's avatar
hjk committed
830

831
                baseNumber = 0
hjk's avatar
hjk committed
832
833
834
835
836
837
838
839
840
841
842
                for field in fields:
                    #warn("FIELD: %s" % field)
                    #warn("  BITSIZE: %s" % field.bitsize)
                    #warn("  ARTIFICIAL: %s" % field.artificial)
                    bitpos = getattr(field, "bitpos", None)
                    if bitpos is None: # FIXME: Is check correct?
                        continue  # A static class member(?).

                    if field.name is None:
                        innerType = value.type.target()
                        p = value.cast(innerType.pointer())
843
                        for i in xrange(value.type.sizeof / innerType.sizeof):
hjk's avatar
hjk committed
844
845
846
847
848
849
850
851
852
853
854
                            self.putItem(Item(p.dereference(), item.iname, i, None))
                            p = p + 1
                        continue

                    # ignore vtable pointers for virtual inheritance
                    if field.name.startswith("_vptr."):
                        continue

                    #warn("FIELD NAME: %s" % field.name)
                    #warn("FIELD TYPE: %s" % field.type)
                    if field.name == stripClassTag(str(field.type)):
855
856
857
858
859
860
861
862
863
864
                        # Field is base type. We cannot use field.name as part
                        # of the iname as it might contain spaces and other
                        # strange characters.
                        child = Item(value.cast(field.type),
                            item.iname, "@%d" % baseNumber, field.name)
                        baseNumber += 1
                        self.beginHash()
                        self.putField("iname", child.iname)
                        self.safePutItemHelper(child)
                        self.endHash()
hjk's avatar
hjk committed
865
866
                    else:
                        # Data member.
867
868
869
870
871
872
873
                        child = Item(value[field.name],
                            item.iname, field.name, field.name)
                        if not child.name:
                            child.name = "<anon>"
                        self.beginHash()
                        self.safePutItemHelper(child)
                        self.endHash()
hjk's avatar
hjk committed
874
                self.endChildren()