gdbbridge.py 61.1 KB
Newer Older
hjk's avatar
hjk committed
1

2 3 4 5 6 7 8 9 10
try:
    import __builtin__
except:
    import builtins
try:
    import gdb
except:
    pass

hjk's avatar
hjk committed
11
import os
12
import os.path
13
import sys
14 15
import struct

hjk's avatar
hjk committed
16

17 18
def warn(message):
    print("XXX: %s\n" % message.encode("latin1"))
19

20 21
from dumper import *
from qttypes import *
hjk's avatar
hjk committed
22 23 24
from stdtypes import *
from misctypes import *
from boosttypes import *
25
from creatortypes import *
hjk's avatar
hjk committed
26

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

#######################################################################
#
# Infrastructure
#
#######################################################################

def savePrint(output):
    try:
        print(output)
    except:
        out = ""
        for c in output:
            cc = ord(c)
            if cc > 127:
                out += "\\\\%d" % cc
            elif cc < 0:
                out += "\\\\%d" % (cc + 256)
            else:
                out += c
        print(out)

def registerCommand(name, func):

    class Command(gdb.Command):
        def __init__(self):
            super(Command, self).__init__(name, gdb.COMMAND_OBSCURE)
        def invoke(self, args, from_tty):
            savePrint(func(args))

    Command()


def listOfLocals(varList):
    frame = gdb.selected_frame()

    try:
        block = frame.block()
        #warn("BLOCK: %s " % block)
66
    except RuntimeError as error:
67
        #warn("BLOCK IN FRAME NOT ACCESSIBLE: %s" % error)
68
        return []
69 70
    except:
        warn("BLOCK NOT ACCESSIBLE FOR UNKNOWN REASONS")
71
        return []
72 73 74 75 76 77 78 79 80 81

    items = []
    shadowed = {}
    while True:
        if block is None:
            warn("UNEXPECTED 'None' BLOCK")
            break
        for symbol in block:
            name = symbol.print_name

82
            if name == "__in_chrg" or name == "__PRETTY_FUNCTION__":
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206
                continue

            # "NotImplementedError: Symbol type not yet supported in
            # Python scripts."
            #warn("SYMBOL %s  (%s): " % (symbol, name))
            if name in shadowed:
                level = shadowed[name]
                name1 = "%s@%s" % (name, level)
                shadowed[name] = level + 1
            else:
                name1 = name
                shadowed[name] = 1
            #warn("SYMBOL %s  (%s, %s)): " % (symbol, name, symbol.name))
            item = LocalItem()
            item.iname = "local." + name1
            item.name = name1
            try:
                item.value = frame.read_var(name, block)
                #warn("READ 1: %s" % item.value)
                if not item.value.is_optimized_out:
                    #warn("ITEM 1: %s" % item.value)
                    items.append(item)
                    continue
            except:
                pass

            try:
                item.value = frame.read_var(name)
                #warn("READ 2: %s" % item.value)
                if not item.value.is_optimized_out:
                    #warn("ITEM 2: %s" % item.value)
                    items.append(item)
                    continue
            except:
                # RuntimeError: happens for
                #     void foo() { std::string s; std::wstring w; }
                # ValueError: happens for (as of 2010/11/4)
                #     a local struct as found e.g. in
                #     gcc sources in gcc.c, int execute()
                pass

            try:
                #warn("READ 3: %s %s" % (name, item.value))
                item.value = gdb.parse_and_eval(name)
                #warn("ITEM 3: %s" % item.value)
                items.append(item)
            except:
                # Can happen in inlined code (see last line of
                # RowPainter::paintChars(): "RuntimeError:
                # No symbol \"__val\" in current context.\n"
                pass

        # 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

    return items



#######################################################################
#
# Types
#
#######################################################################

PointerCode = gdb.TYPE_CODE_PTR
ArrayCode = gdb.TYPE_CODE_ARRAY
StructCode = gdb.TYPE_CODE_STRUCT
UnionCode = gdb.TYPE_CODE_UNION
EnumCode = gdb.TYPE_CODE_ENUM
FlagsCode = gdb.TYPE_CODE_FLAGS
FunctionCode = gdb.TYPE_CODE_FUNC
IntCode = gdb.TYPE_CODE_INT
FloatCode = gdb.TYPE_CODE_FLT # Parts of GDB assume that this means complex.
VoidCode = gdb.TYPE_CODE_VOID
#SetCode = gdb.TYPE_CODE_SET
RangeCode = gdb.TYPE_CODE_RANGE
StringCode = gdb.TYPE_CODE_STRING
#BitStringCode = gdb.TYPE_CODE_BITSTRING
#ErrorTypeCode = gdb.TYPE_CODE_ERROR
MethodCode = gdb.TYPE_CODE_METHOD
MethodPointerCode = gdb.TYPE_CODE_METHODPTR
MemberPointerCode = gdb.TYPE_CODE_MEMBERPTR
ReferenceCode = gdb.TYPE_CODE_REF
CharCode = gdb.TYPE_CODE_CHAR
BoolCode = gdb.TYPE_CODE_BOOL
ComplexCode = gdb.TYPE_CODE_COMPLEX
TypedefCode = gdb.TYPE_CODE_TYPEDEF
NamespaceCode = gdb.TYPE_CODE_NAMESPACE
#Code = gdb.TYPE_CODE_DECFLOAT # Decimal floating point.
#Code = gdb.TYPE_CODE_MODULE # Fortran
#Code = gdb.TYPE_CODE_INTERNAL_FUNCTION


#######################################################################
#
# Convenience
#
#######################################################################

# Just convienience for 'python print ...'
class PPCommand(gdb.Command):
    def __init__(self):
        super(PPCommand, self).__init__("pp", gdb.COMMAND_OBSCURE)
    def invoke(self, args, from_tty):
        print(eval(args))

PPCommand()

# Just convienience for 'python print gdb.parse_and_eval(...)'
class PPPCommand(gdb.Command):
    def __init__(self):
        super(PPPCommand, self).__init__("ppp", gdb.COMMAND_OBSCURE)
    def invoke(self, args, from_tty):
        print(gdb.parse_and_eval(args))

PPPCommand()


def scanStack(p, n):
207
    p = int(p)
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
    r = []
    for i in xrange(n):
        f = gdb.parse_and_eval("{void*}%s" % p)
        m = gdb.execute("info symbol %s" % f, to_string=True)
        if not m.startswith("No symbol matches"):
            r.append(m)
        p += f.type.sizeof
    return r

class ScanStackCommand(gdb.Command):
    def __init__(self):
        super(ScanStackCommand, self).__init__("scanStack", gdb.COMMAND_OBSCURE)
    def invoke(self, args, from_tty):
        if len(args) == 0:
            args = 20
        savePrint(scanStack(gdb.parse_and_eval("$sp"), int(args)))

ScanStackCommand()

hjk's avatar
hjk committed
227

228
def bbsetup(args = ''):
229
    print(theDumper.bbsetup())
230 231 232 233 234 235 236 237 238 239 240 241 242 243 244

registerCommand("bbsetup", bbsetup)


#######################################################################
#
# Import plain gdb pretty printers
#
#######################################################################

class PlainDumper:
    def __init__(self, printer):
        self.printer = printer

    def __call__(self, d, value):
245
        printer = self.printer.invoke(value)
246 247 248 249 250 251 252 253 254 255 256 257 258
        lister = getattr(printer, "children", None)
        children = [] if lister is None else list(lister())
        d.putType(self.printer.name)
        val = printer.to_string().encode("hex")
        d.putValue(val, Hex2EncodedLatin1)
        d.putValue(printer.to_string())
        d.putNumChild(len(children))
        if d.isExpanded():
            with Children(d):
                for child in children:
                    d.putSubItem(child[0], child[1])

def importPlainDumpers(args):
259
    theDumper.importPlainDumpers()
260 261 262 263

registerCommand("importPlainDumpers", importPlainDumpers)


264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295

class OutputSafer:
    def __init__(self, d):
        self.d = d

    def __enter__(self):
        self.savedOutput = self.d.output
        self.d.output = []

    def __exit__(self, exType, exValue, exTraceBack):
        if self.d.passExceptions and not exType is None:
            showException("OUTPUTSAFER", exType, exValue, exTraceBack)
            self.d.output = self.savedOutput
        else:
            self.savedOutput.extend(self.d.output)
            self.d.output = self.savedOutput
        return False



#def couldBePointer(p, align):
#    type = lookupType("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)


Value = gdb.Value



296 297 298 299 300
def stripTypedefs(typeobj):
    typeobj = typeobj.unqualified()
    while typeobj.code == TypedefCode:
        typeobj = typeobj.strip_typedefs().unqualified()
    return typeobj
301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320


#######################################################################
#
# LocalItem
#
#######################################################################

# Contains iname, name, and value.
class LocalItem:
    pass


#######################################################################
#
# Edit Command
#
#######################################################################

def bbedit(args):
321
    theDumper.bbedit(args)
322 323 324 325 326 327 328 329 330 331

registerCommand("bbedit", bbedit)


#######################################################################
#
# Frame Command
#
#######################################################################

332

333
def bb(args):
334 335 336 337 338
    try:
        print(theDumper.run(args))
    except:
        import traceback
        traceback.print_exc()
339 340

registerCommand("bb", bb)
341

342 343 344 345 346 347 348 349

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


350 351
class Dumper(DumperBase):

352
    def __init__(self):
353 354
        DumperBase.__init__(self)

355
        # These values will be kept between calls to 'run'.
356
        self.isGdb = True
357
        self.childEventAddress = None
358 359
        self.typesReported = {}
        self.typesToReport = {}
360
        self.qtNamespaceToReport = None
361 362

    def run(self, args):
363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380
        self.output = []
        self.currentIName = ""
        self.currentPrintsAddress = True
        self.currentChildType = ""
        self.currentChildNumChild = -1
        self.currentMaxNumChild = -1
        self.currentNumChild = -1
        self.currentValue = None
        self.currentValuePriority = -100
        self.currentValueEncoding = None
        self.currentType = None
        self.currentTypePriority = -100
        self.currentAddress = None
        self.typeformats = {}
        self.formats = {}
        self.useDynamicType = True
        self.expandedINames = {}

381 382 383 384 385
        # The guess does not need to be updated during a run()
        # as the result is fixed during that time (ignoring "active"
        # dumpers causing loading of shared objects etc).
        self.currentQtNamespaceGuess = None

386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402
        watchers = ""
        resultVarName = ""
        options = []
        varList = []

        self.output.append('data=[')
        for arg in args.split(' '):
            pos = arg.find(":") + 1
            if arg.startswith("options:"):
                options = arg[pos:].split(",")
            elif arg.startswith("vars:"):
                if len(arg[pos:]) > 0:
                    varList = arg[pos:].split(",")
            elif arg.startswith("resultvarname:"):
                resultVarName = arg[pos:]
            elif arg.startswith("expanded:"):
                self.expandedINames = set(arg[pos:].split(","))
403 404
            elif arg.startswith("stringcutoff:"):
                self.stringCutOff = int(arg[pos:])
405 406 407 408
            elif arg.startswith("typeformats:"):
                for f in arg[pos:].split(","):
                    pos = f.find("=")
                    if pos != -1:
409 410
                        typeName = self.hexdecode(f[0:pos])
                        self.typeformats[typeName] = int(f[pos+1:])
411 412 413 414 415 416
            elif arg.startswith("formats:"):
                for f in arg[pos:].split(","):
                    pos = f.find("=")
                    if pos != -1:
                        self.formats[f[0:pos]] = int(f[pos+1:])
            elif arg.startswith("watchers:"):
hjk's avatar
hjk committed
417
                watchers = self.hexdecode(arg[pos:])
418 419 420

        self.useDynamicType = "dyntype" in options
        self.useFancy = "fancy" in options
421
        self.forceQtNamespace = "forcens" in options
422 423 424 425 426
        self.passExceptions = "pe" in options
        #self.passExceptions = True
        self.autoDerefPointers = "autoderef" in options
        self.partialUpdate = "partial" in options
        self.tooltipOnly = "tooltiponly" in options
427
        self.fallbackQtVersion = 0x50200
428
        #warn("NAMESPACE: '%s'" % self.qtNamespace())
429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458
        #warn("VARIABLES: %s" % varList)
        #warn("EXPANDED INAMES: %s" % self.expandedINames)
        #warn("WATCHERS: %s" % watchers)
        #warn("PARTIAL: %s" % self.partialUpdate)

        #
        # Locals
        #
        locals = []
        fullUpdateNeeded = True
        if self.partialUpdate and len(varList) == 1 and not self.tooltipOnly:
            #warn("PARTIAL: %s" % varList)
            parts = varList[0].split('.')
            #warn("PARTIAL PARTS: %s" % parts)
            name = parts[1]
            #warn("PARTIAL VAR: %s" % name)
            #fullUpdateNeeded = False
            try:
                frame = gdb.selected_frame()
                item = LocalItem()
                item.iname = "local." + name
                item.name = name
                item.value = frame.read_var(name)
                locals = [item]
                #warn("PARTIAL LOCALS: %s" % locals)
                fullUpdateNeeded = False
            except:
                pass
            varList = []

459
        if fullUpdateNeeded and not self.tooltipOnly:
460 461 462 463 464 465 466 467
            locals = listOfLocals(varList)

        # Take care of the return value of the last function call.
        if len(resultVarName) > 0:
            try:
                item = LocalItem()
                item.name = resultVarName
                item.iname = "return." + resultVarName
468
                item.value = self.parseAndEvaluate(resultVarName)
469 470 471 472 473 474
                locals.append(item)
            except:
                # Don't bother. It's only supplementary information anyway.
                pass

        for item in locals:
475
            value = self.downcast(item.value) if self.useDynamicType else item.value
476 477 478
            with OutputSafer(self):
                self.anonNumber = -1

479 480
                if item.iname == "local.argv" and str(value.type) == "char **":
                    self.putSpecialArgv(value)
481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498
                else:
                    # A "normal" local variable or parameter.
                    with TopLevelItem(self, item.iname):
                        self.put('iname="%s",' % item.iname)
                        self.put('name="%s",' % item.name)
                        self.putItem(value)

        #
        # Watchers
        #
        with OutputSafer(self):
            if len(watchers) > 0:
                for watcher in watchers.split("##"):
                    (exp, iname) = watcher.split("#")
                    self.handleWatch(exp, iname)

        #print('data=[' + locals + sep + watchers + ']\n')

499 500
        self.output.append('],typeinfo=[')
        for name in self.typesToReport.keys():
501
            typeobj = self.typesToReport[name]
502
            # Happens e.g. for '(anonymous namespace)::InsertDefOperation'
503
            if not typeobj is None:
504
                self.output.append('{name="%s",size="%s"}'
505
                    % (self.hexencode(name), typeobj.sizeof))
506 507
        self.output.append(']')
        self.typesToReport = {}
508

509 510 511
        if "forcens" in options:
            self.qtNamepaceToRport = self.qtNamespace()

512 513 514 515
        if self.qtNamespaceToReport:
            self.output.append(',qtnamespace="%s"' % self.qtNamespaceToReport)
            self.qtNamespaceToReport = None

516
        return "".join(self.output)
517

518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574
    def enterSubItem(self, item):
        if not item.iname:
            item.iname = "%s.%s" % (self.currentIName, item.name)
        #warn("INAME %s" % item.iname)
        self.put('{')
        #if not item.name is None:
        if isinstance(item.name, str):
            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
        item.savedCurrentAddress = self.currentAddress
        self.currentIName = item.iname
        self.currentValuePriority = -100
        self.currentValueEncoding = None
        self.currentType = ""
        self.currentTypePriority = -100
        self.currentAddress = None

    def exitSubItem(self, item, exType, exValue, exTraceBack):
        #warn(" CURRENT VALUE: %s %s %s" % (self.currentValue,
        #    self.currentValueEncoding, self.currentValuePriority))
        if not exType is None:
            if self.passExceptions:
                showException("SUBITEM", exType, exValue, exTraceBack)
            self.putNumChild(0)
            self.putValue("<not accessible>")
        try:
            #warn("TYPE VALUE: %s" % self.currentValue)
            typeName = stripClassTag(self.currentType)
            #warn("TYPE: '%s'  DEFAULT: '%s' % (typeName, self.currentChildType))

            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:
                    self.put('valueencoded="%d",' % self.currentValueEncoding)
                self.put('value="%s",' % self.currentValue)
        except:
            pass
        if not self.currentAddress is None:
            self.put(self.currentAddress)
        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
        self.currentAddress = item.savedCurrentAddress
        return True

575 576 577
    def parseAndEvaluate(self, exp):
        return gdb.parse_and_eval(exp)

578
    def callHelper(self, value, func, args):
579 580 581 582 583 584 585 586 587 588 589 590
        # args is a tuple.
        arg = ""
        for i in range(len(args)):
            if i:
                arg += ','
            a = args[i]
            if (':' in a) and not ("'" in a):
                arg = "'%s'" % a
            else:
                arg += a

        #warn("CALL: %s -> %s(%s)" % (value, func, arg))
591 592 593
        typeName = stripClassTag(str(value.type))
        if typeName.find(":") >= 0:
            typeName = "'" + typeName + "'"
594
        # 'class' is needed, see http://sourceware.org/bugzilla/show_bug.cgi?id=11912
595 596 597
        #exp = "((class %s*)%s)->%s(%s)" % (typeName, value.address, func, arg)
        ptr = value.address if value.address else self.pokeValue(value)
        exp = "((%s*)%s)->%s(%s)" % (typeName, ptr, func, arg)
598
        #warn("CALL: %s" % exp)
599
        result = gdb.parse_and_eval(exp)
600
        #warn("  -> %s" % result)
601 602
        if not value.address:
            gdb.parse_and_eval("free(0x%x)" % ptr)
603 604
        return result

hjk's avatar
hjk committed
605
    def childWithName(self, value, name):
606
        try:
hjk's avatar
hjk committed
607
            return value[name]
608
        except:
hjk's avatar
hjk committed
609
            return None
610

hjk's avatar
hjk committed
611 612 613 614 615
    def makeValue(self, type, init):
        type = "::" + stripClassTag(str(type));
        # Avoid malloc symbol clash with QVector.
        gdb.execute("set $d = (%s*)calloc(sizeof(%s), 1)" % (type, type))
        gdb.execute("set *$d = {%s}" % init)
hjk's avatar
hjk committed
616
        value = gdb.parse_and_eval("$d").dereference()
hjk's avatar
hjk committed
617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634
        #warn("  TYPE: %s" % value.type)
        #warn("  ADDR: %s" % value.address)
        #warn("  VALUE: %s" % value)
        return value

    def makeExpression(self, value):
        type = "::" + stripClassTag(str(value.type))
        #warn("  TYPE: %s" % type)
        #exp = "(*(%s*)(&%s))" % (type, value.address)
        exp = "(*(%s*)(%s))" % (type, value.address)
        #warn("  EXP: %s" % exp)
        return exp

    def makeStdString(init):
        # Works only for small allocators, but they are usually empty.
        gdb.execute("set $d=(std::string*)calloc(sizeof(std::string), 2)");
        gdb.execute("call($d->basic_string(\"" + init +
            "\",*(std::allocator<char>*)(1+$d)))")
hjk's avatar
hjk committed
635
        value = gdb.parse_and_eval("$d").dereference()
hjk's avatar
hjk committed
636 637 638 639 640
        #warn("  TYPE: %s" % value.type)
        #warn("  ADDR: %s" % value.address)
        #warn("  VALUE: %s" % value)
        return value

641 642 643
    def childAt(self, value, index):
        field = value.type.fields()[index]
        if len(field.name):
644 645 646 647 648
            try:
                return value[field.name]
            except:
                return value.cast(field.type)

649 650 651 652 653 654 655 656 657
        # FIXME: Cheat. There seems to be no official way to access
        # the real item, so we pass back the value. That at least
        # enables later ...["name"] style accesses as gdb handles
        # them transparently.
        return value

    def fieldAt(self, type, index):
        return type.fields()[index]

658 659 660
    def simpleValue(self, value):
        return str(value)

661
    def directBaseClass(self, typeobj, index = 0):
662 663 664 665 666
        for f in typeobj.fields():
            if f.is_base_class:
                if index == 0:
                    return f.type
                index -= 1;
hjk's avatar
hjk committed
667 668 669 670 671 672 673 674
        return None

    def directBaseObject(self, value, index = 0):
        for f in value.type.fields():
            if f.is_base_class:
                if index == 0:
                    return value.cast(f.type)
                index -= 1;
675
        return None
676 677 678 679 680 681 682 683 684 685 686 687 688 689 690

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

    def pointerValue(self, p):
        return toInteger(p)

    def isNull(self, p):
        # 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 ")
        #try:
        #    # Can fail with: "RuntimeError: Cannot access memory at address 0x5"
hjk's avatar
hjk committed
691
        #    return p.cast(self.lookupType("void").pointer()) == 0
692 693 694 695 696 697 698 699
        #except:
        #    return False
        try:
            # Can fail with: "RuntimeError: Cannot access memory at address 0x5"
            return toInteger(p) == 0
        except:
            return False

700
    def templateArgument(self, typeobj, position):
701 702 703 704 705 706 707
        try:
            # This fails on stock 7.2 with
            # "RuntimeError: No type named myns::QObject.\n"
            return typeobj.template_argument(position)
        except:
            # That's something like "myns::QList<...>"
            return self.lookupType(self.extractTemplateArgument(str(typeobj.strip_typedefs()), position))
708 709

    def numericTemplateArgument(self, typeobj, position):
710 711 712 713 714 715 716 717 718 719 720 721
        # Workaround for gdb < 7.1
        try:
            return int(typeobj.template_argument(position))
        except RuntimeError as error:
            # ": No type named 30."
            msg = str(error)
            msg = msg[14:-1]
            # gdb at least until 7.4 produces for std::array<int, 4u>
            # for template_argument(1): RuntimeError: No type named 4u.
            if msg[-1] == 'u':
               msg = msg[0:-1]
            return int(msg)
722 723 724

    def handleWatch(self, exp, iname):
        exp = str(exp)
hjk's avatar
hjk committed
725
        escapedExp = self.hexencode(exp);
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742
        #warn("HANDLING WATCH %s, INAME: '%s'" % (exp, iname))
        if exp.startswith("[") and exp.endswith("]"):
            #warn("EVAL: EXP: %s" % exp)
            with TopLevelItem(self, iname):
                self.put('iname="%s",' % iname)
                self.put('wname="%s",' % escapedExp)
                try:
                    list = eval(exp)
                    self.putValue("")
                    self.putNoType()
                    self.putNumChild(len(list))
                    # This is a list of expressions to evaluate
                    with Children(self, len(list)):
                        itemNumber = 0
                        for item in list:
                            self.handleWatch(item, "%s.%d" % (iname, itemNumber))
                            itemNumber += 1
743
                except RuntimeError as error:
744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759
                    warn("EVAL: ERROR CAUGHT %s" % error)
                    self.putValue("<syntax error>")
                    self.putNoType()
                    self.putNumChild(0)
                    self.put("children=[],")
            return

        with TopLevelItem(self, iname):
            self.put('iname="%s",' % iname)
            self.put('wname="%s",' % escapedExp)
            if len(exp) == 0: # The <Edit> case
                self.putValue(" ")
                self.putNoType()
                self.putNumChild(0)
            else:
                try:
760
                    value = self.parseAndEvaluate(exp)
761 762 763 764 765 766 767 768
                    self.putItem(value)
                except RuntimeError:
                    self.currentType = " "
                    self.currentValue = "<no such value>"
                    self.currentChildNumChild = -1
                    self.currentNumChild = 0
                    self.putNumChild(0)

769
    def intType(self):
770 771 772
        self.cachedIntType = self.lookupType('int')
        self.intType = lambda: self.cachedIntType
        return self.cachedIntType
773 774

    def charType(self):
hjk's avatar
hjk committed
775
        return self.lookupType('char')
776 777

    def sizetType(self):
hjk's avatar
hjk committed
778
        return self.lookupType('size_t')
779 780

    def charPtrType(self):
hjk's avatar
hjk committed
781
        return self.lookupType('char*')
782 783

    def voidPtrType(self):
hjk's avatar
hjk committed
784
        return self.lookupType('void*')
785

786
    def addressOf(self, value):
787
        return toInteger(value.address)
788

789
    def createPointerValue(self, address, pointeeType):
790 791 792 793 794 795 796 797
        # This might not always work:
        # a Python 3 based GDB due to the bug addressed in
        # https://sourceware.org/ml/gdb-patches/2013-09/msg00571.html
        try:
            return gdb.Value(address).cast(pointeeType.pointer())
        except:
            # Try _some_ fallback (good enough for the std::complex dumper)
            return gdb.parse_and_eval("(%s*)%s" % (pointeeType, address))
798 799 800 801 802

    def intSize(self):
        return 4

    def ptrSize(self):
803 804 805
        self.cachedPtrSize = self.lookupType('void*').sizeof
        self.ptrSize = lambda: self.cachedPtrSize
        return self.cachedPtrSize
806

807 808 809 810 811 812 813 814 815 816 817 818 819 820
    def pokeValue(self, value):
        """
        Allocates inferior memory and copies the contents of value.
        Returns a pointer to the copy.
        """
        # Avoid malloc symbol clash with QVector
        size = value.type.sizeof
        data = value.cast(gdb.lookup_type("unsigned char").array(0, int(size - 1)))
        string = ''.join("\\x%02x" % int(data[i]) for i in range(size))
        exp = '(%s*)memcpy(calloc(%s, 1), "%s", %s)' % (value.type, size, string, size)
        #warn("EXP: %s" % exp)
        return toInteger(gdb.parse_and_eval(exp))


821
    def createValue(self, address, referencedType):
822 823 824 825 826
        try:
            return gdb.Value(address).cast(referencedType.pointer()).dereference()
        except:
            # Try _some_ fallback (good enough for the std::complex dumper)
            return gdb.parse_and_eval("{%s}%s" % (referencedType, address))
827

828 829 830 831 832 833 834 835 836
    def setValue(self, address, type, value):
        cmd = "set {%s}%s=%s" % (type, address, value)
        gdb.execute(cmd)

    def setValues(self, address, type, values):
        cmd = "set {%s[%s]}%s={%s}" \
            % (type, len(values), address, ','.join(map(str, values)))
        gdb.execute(cmd)

837 838
    def selectedInferior(self):
        try:
839
            # gdb.Inferior is new in gdb 7.2
840
            self.cachedInferior = gdb.selected_inferior()
841 842
        except:
            # Pre gdb 7.4. Right now we don't have more than one inferior anyway.
843 844 845 846 847
            self.cachedInferior = gdb.inferiors()[0]

        # Memoize result.
        self.selectedInferior = lambda: self.cachedInferior
        return self.cachedInferior
848

849
    def readRawMemory(self, addr, size):
850
        mem = self.selectedInferior().read_memory(addr, size)
851 852 853 854
        if sys.version_info[0] >= 3:
            mem.tobytes()
        return mem

855 856 857
    def extractInt64(self, addr):
        return struct.unpack("q", self.readRawMemory(addr, 8))[0]

858
    def extractInt(self, addr):
859
        return struct.unpack("i", self.readRawMemory(addr, 4))[0]
860

861
    def extractByte(self, addr):
862
        return struct.unpack("b", self.readRawMemory(addr, 1))[0]
863

864 865 866 867 868 869 870 871
    def findSymbol(self, symbolName):
        try:
            result = gdb.lookup_global_symbol(symbolName)
            return result.value() if result else 0
        except:
            pass
        # Older GDB ~7.4
        try:
872 873 874
            address = gdb.parse_and_eval("&'%s'" % symbolName)
            type = gdb.lookup_type(self.qtNamespace() + "QMetaObject")
            return self.createPointerValue(address, type)
875 876
        except:
            return 0
877

878 879 880 881 882
    def put(self, value):
        self.output.append(value)

    def childRange(self):
        if self.currentMaxNumChild is None:
883 884
            return xrange(0, toInteger(self.currentNumChild))
        return xrange(min(toInteger(self.currentMaxNumChild), toInteger(self.currentNumChild)))
885

886 887 888 889 890 891
    def isArmArchitecture(self):
        return 'arm' in gdb.TARGET_CONFIG.lower()

    def isQnxTarget(self):
        return 'qnx' in gdb.TARGET_CONFIG.lower()

892 893 894 895
    def isWindowsTarget(self):
        # We get i686-w64-mingw32
        return 'mingw' in gdb.TARGET_CONFIG.lower()

hjk's avatar
hjk committed
896 897 898 899 900
    def qtVersionString(self):
        try:
            return str(gdb.lookup_symbol("qVersion")[0].value()())
        except:
            pass
901
        try:
902
            ns = self.qtNamespace()
hjk's avatar
hjk committed
903 904 905 906 907 908 909 910
            return str(gdb.parse_and_eval("((const char*(*)())'%sqVersion')()" % ns))
        except:
            pass
        return None

    def qtVersion(self):
        try:
            version = self.qtVersionString()
911
            (major, minor, patch) = version[version.find('"')+1:version.rfind('"')].split('.')
hjk's avatar
hjk committed
912 913 914
            qtversion = 0x10000 * int(major) + 0x100 * int(minor) + int(patch)
            self.qtVersion = lambda: qtversion
            return qtversion
915
        except:
916 917
            # Use fallback until we have a better answer.
            return self.fallbackQtVersion
918

919 920 921 922 923 924 925 926 927 928 929 930 931 932 933
    def isQt3Support(self):
        if self.qtVersion() >= 0x050000:
            return False
        else:
            try:
                # This will fail on Qt 4 without Qt 3 support
                gdb.execute("ptype QChar::null", to_string=True)
                self.cachedIsQt3Suport = True
            except:
                self.cachedIsQt3Suport = False

        # Memoize good results.
        self.isQt3Support = lambda: self.cachedIsQt3Suport
        return self.cachedIsQt3Suport

934
    def putBetterType(self, type):
935 936 937 938 939 940
        self.currentType = str(type)
        self.currentTypePriority = self.currentTypePriority + 1

    def putAddress(self, addr):
        if self.currentPrintsAddress:
            try:
941 942 943
                # addr can be "None", int(None) fails.
                #self.put('addr="0x%x",' % int(addr))
                self.currentAddress = 'addr="0x%x",' % toInteger(addr)
944 945 946 947 948 949 950 951
            except:
                pass

    def putNumChild(self, numchild):
        #warn("NUM CHILD: '%s' '%s'" % (numchild, self.currentChildNumChild))
        if numchild != self.currentChildNumChild:
            self.put('numchild="%s",' % numchild)

hjk's avatar
hjk committed
952 953 954
    def putSimpleValue(self, value, encoding = None, priority = 0):
        self.putValue(value, encoding, priority)

955 956 957 958 959 960
    def putPointerValue(self, value):
        # Use a lower priority
        if value is None:
            self.putEmptyValue(-1)
        else:
            self.putValue("0x%x" % value.cast(
hjk's avatar
hjk committed
961
                self.lookupType("unsigned long")), None, -1)
962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977

    def putDisplay(self, format, value = None, cmd = None):
        self.put('editformat="%s",' % format)
        if cmd is None:
            if not value is None:
                self.put('editvalue="%s",' % value)
        else:
            self.put('editvalue="%s|%s",' % (cmd, value))

    def isExpandedSubItem(self, component):
        iname = "%s.%s" % (self.currentIName, component)
        #warn("IS EXPANDED: %s in %s" % (iname, self.expandedINames))
        return iname in self.expandedINames

    def stripNamespaceFromType(self, typeName):
        type = stripClassTag(typeName)
978 979 980
        ns = self.qtNamespace()
        if len(ns) > 0 and type.startswith(ns):
            type = type[len(ns):]
981 982 983 984 985 986 987 988 989 990 991
        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("<")
        return type

    def isMovableType(self, type):
        if type.code == PointerCode:
            return True
992
        if self.isSimpleType(type):
993
            return True
994
        return self.isKnownMovableType(self.stripNamespaceFromType(str(type)))
995 996 997 998 999

    def putSubItem(self, component, value, tryDynamic=True):
        with SubItem(self, component):
            self.putItem(value, tryDynamic)

1000 1001 1002 1003 1004 1005
    def isSimpleType(self, typeobj):
        code = typeobj.code
        return code == BoolCode \
            or code == CharCode \
            or code == IntCode \
            or code == FloatCode \
1006
            or code == EnumCode
1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037

    def simpleEncoding(self, typeobj):
        code = typeobj.code
        if code == BoolCode or code == CharCode:
            return Hex2EncodedInt1
        if code == IntCode:
            if str(typeobj).find("unsigned") >= 0:
                if typeobj.sizeof == 1:
                    return Hex2EncodedUInt1
                if typeobj.sizeof == 2:
                    return Hex2EncodedUInt2
                if typeobj.sizeof == 4:
                    return Hex2EncodedUInt4
                if typeobj.sizeof == 8:
                    return Hex2EncodedUInt8
            else:
                if typeobj.sizeof == 1:
                    return Hex2EncodedInt1
                if typeobj.sizeof == 2:
                    return Hex2EncodedInt2
                if typeobj.sizeof == 4:
                    return Hex2EncodedInt4
                if typeobj.sizeof == 8:
                    return Hex2EncodedInt8
        if code == FloatCode:
            if typeobj.sizeof == 4:
                return Hex2EncodedFloat4
            if typeobj.sizeof == 8:
                return Hex2EncodedFloat8
        return None

hjk's avatar
hjk committed
1038 1039 1040 1041 1042 1043
    def isReferenceType(self, typeobj):
        return typeobj.code == gdb.TYPE_CODE_REF

    def isStructType(self, typeobj):
        return typeobj.code == gdb.TYPE_CODE_STRUCT

hjk's avatar
hjk committed
1044
    def putArrayData(self, typeobj, base, n,
1045
            childNumChild = None, maxNumChild = 10000):
hjk's avatar
hjk committed
1046 1047 1048 1049
        if not self.tryPutArrayContents(typeobj, base, n):
            base = self.createPointerValue(base, typeobj)
            with Children(self, n, typeobj, childNumChild, maxNumChild,
                    base, typeobj.sizeof):
1050
                for i in self.childRange():
hjk's avatar
hjk committed
1051
                    i = toInteger(i)
1052 1053
                    self.putSubItem(i, (base + i).dereference())

hjk's avatar
hjk committed
1054 1055 1056
    def isFunctionType(self, type):
        return type.code == MethodCode or type.code == FunctionCode

1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068
    def putItem(self, value, tryDynamic=True):
        if value is None:
            # Happens for non-available watchers in gdb versions that
            # need to use gdb.execute instead of gdb.parse_and_eval
            self.putValue("<not available>")
            self.putType("<unknown>")
            self.putNumChild(0)
            return

        type = value.type.unqualified()
        typeName = str(type)
        tryDynamic &= self.useDynamicType
1069
        self.addToCache(type) # Fill type cache
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
        if tryDynamic:
            self.putAddress(value.address)

        # FIXME: Gui shows references stripped?
        #warn(" ")
        #warn("REAL INAME: %s " % self.currentIName)
        #warn("REAL TYPE: %s " % value.type)
        #warn("REAL CODE: %s " % value.type.code)
        #warn("REAL VALUE: %s " % value)

        if type.code == ReferenceCode:
            try:
                # Try to recognize null references explicitly.
1083
                if toInteger(value.address) == 0:
1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108
                    self.putValue("<null reference>")
                    self.putType(typeName)
                    self.putNumChild(0)
                    return
            except:
                pass

            if tryDynamic:
                try:
                    # Dynamic references are not supported by gdb, see
                    # http://sourceware.org/bugzilla/show_bug.cgi?id=14077.
                    # Find the dynamic type manually using referenced_type.
                    value = value.referenced_value()
                    value = value.cast(value.dynamic_type)
                    self.putItem(value)
                    self.putBetterType("%s &" % value.type)
                    return
                except:
                    pass

            try:
                # FIXME: This throws "RuntimeError: Attempt to dereference a
                # generic pointer." with MinGW's gcc 4.5 when it "identifies"
                # a "QWidget &" as "void &" and with optimized out code.
                self.putItem(value.cast(type.target().unqualified()))
1109
                self.putBetterType("%s &" % self.currentType)
1110 1111 1112 1113 1114 1115 1116
                return
            except RuntimeError:
                self.putValue("<optimized out reference>")
                self.putType(typeName)
                self.putNumChild(0)
                return

1117
        if type.code == IntCode or type.code == CharCode:
1118 1119 1120
            self.putType(typeName)
            if value.is_optimized_out:
                self.putValue("<optimized out>")
1121 1122 1123
            elif type.sizeof == 1:
                # Force unadorned value transport for char and Co.
                self.putValue(int(value) & 0xff)
1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156
            else:
                self.putValue(value)
            self.putNumChild(0)
            return

        if type.code == FloatCode or type.code == BoolCode:
            self.putType(typeName)
            if value.is_optimized_out:
                self.putValue("<optimized out>")
            else:
                self.putValue(value)
            self.putNumChild(0)
            return

        if type.code == EnumCode:
            self.putType(typeName)
            if value.is_optimized_out:
                self.putValue("<optimized out>")
            else:
                self.putValue("%s (%d)" % (value, value))
            self.putNumChild(0)
            return

        if type.code == ComplexCode:
            self.putType(typeName)
            if value.is_optimized_out:
                self.putValue("<optimized out>")
            else:
                self.putValue("%s" % value)
            self.putNumChild(0)
            return

        if type.code == TypedefCode:
1157
            if typeName in self.qqDumpers:
1158
                self.putType(typeName)
1159
                self.qqDumpers[typeName](self, value)
1160 1161 1162 1163 1164 1165 1166
                return

            type = stripTypedefs(type)
            # The cast can destroy the address?
            #self.putAddress(value.address)
            # Workaround for http://sourceware.org/bugzilla/show_bug.cgi?id=13380
            if type.code == ArrayCode:
1167
                value = self.parseAndEvaluate("{%s}%s" % (type, value.address))
1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181
            else:
                try:
                    value = value.cast(type)
                except:
                    self.putValue("<optimized out typedef>")
                    self.putType(typeName)
                    self.putNumChild(0)
                    return

            self.putItem(value)
            self.putBetterType(typeName)
            return

        if type.code == ArrayCode:
1182
            self.putCStyleArray(value)
1183 1184 1185 1186 1187 1188 1189 1190 1191
            return

        if type.code == PointerCode:
            # This could still be stored in a register and
            # potentially dereferencable.
            if value.is_optimized_out:
                self.putValue("<optimized out>")
                return

hjk's avatar
hjk committed
1192
            self.putFormattedPointer(value)
1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213
            return

        if type.code == MethodPointerCode \
                or type.code == MethodCode \
                or type.code == FunctionCode \
                or type.code == MemberPointerCode:
            self.putType(typeName)
            self.putValue(value)
            self.putNumChild(0)
            return

        if typeName.startswith("<anon"):
            # Anonymous union. We need a dummy name to distinguish
            # multiple anonymous unions in the struct.
            self.putType(type)
            self.putValue("{...}")
            self.anonNumber += 1
            with Children(self, 1):
                self.listAnonymous(value, "#%d" % self.anonNumber, type)
            return

1214 1215 1216
        if type.code == StringCode:
            # FORTRAN strings
            size = type.sizeof
1217
            data = self.readMemory(value.address, size)
1218 1219 1220
            self.putValue(data, Hex2EncodedLatin1, 1)
            self.putType(type)

1221 1222 1223 1224 1225 1226
        if type.code != StructCode and type.code != UnionCode:
            warn("WRONG ASSUMPTION HERE: %s " % type.code)
            check(False)


        if tryDynamic:
1227
            self.putItem(self.expensiveDowncast(value), False)
1228 1229
            return

1230
        format = self.currentItemFormat(typeName)
1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249

        if self.useFancy and (format is None or format >= 1):
            self.putType(typeName)

            nsStrippedType = self.stripNamespaceFromType(typeName)\
                .replace("::", "__")

            # The following block is only needed for D.
            if nsStrippedType.startswith("_A"):
                # DMD v2.058 encodes string[] as _Array_uns long long.
                # With spaces.
                if nsStrippedType.startswith("_Array_"):
                    qdump_Array(self, value)
                    return
                if nsStrippedType.startswith("_AArray_"):
                    qdump_AArray(self, value)
                    return

            #warn(" STRIPPED: %s" % nsStrippedType)
1250 1251 1252
            #warn(" DUMPERS: %s" % self.qqDumpers)
            #warn(" DUMPERS: %s" % (nsStrippedType in self.qqDumpers))
            dumper = self.qqDumpers.get(nsStrippedType, None)
1253 1254
            if not dumper is None:
                if tryDynamic:
1255
                    dumper(self, self.expensiveDowncast(value))
1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273
                else:
                    dumper(self, value)
                return

        # D arrays, gdc compiled.
        if typeName.endswith("[]"):
            n = value["length"]
            base = value["ptr"]
            self.putType(typeName)
            self.putItemCount(n)
            if self.isExpanded():
                self.putArrayData(base.type.target(), base, n)
            return

        #warn("GENERIC STRUCT: %s" % type)
        #warn("INAME: %s " % self.currentIName)
        #warn("INAMES: %s " % self.expandedINames)
        #warn("EXPANDED: %s " % (self.currentIName in self.expandedINames))
1274 1275 1276
        staticMetaObject = self.extractStaticMetaObject(value.type)
        if staticMetaObject:
            self.putQObjectNameValue(value)
1277 1278
        self.putType(typeName)
        self.putEmptyValue()
1279
        self.putNumChild(len(type.fields()))
1280 1281 1282 1283 1284

        if self.currentIName in self.expandedINames:
            innerType = None
            with Children(self, 1, childType=innerType):
                self.putFields(value)
1285 1286
                if staticMetaObject:
                    self.putQObjectGuts(value, staticMetaObject)
hjk's avatar
hjk committed
1287

1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300
    def toBlob(self, value):
        size = toInteger(value.type.sizeof)
        if value.address:
            return self.extractBlob(value.address, size)

        # No address. Possibly the result of an inferior call.
        y = value.cast(gdb.lookup_type("unsigned char").array(0, int(size - 1)))
        buf = bytearray(struct.pack('x' * size))
        for i in range(size):
            buf[i] = int(y[i])

        return Blob(bytes(buf))

hjk's avatar
hjk committed
1301
    def extractBlob(self, base, size):
1302
        inferior = self.selectedInferior()
hjk's avatar
hjk committed
1303
        return Blob(inferior.read_memory(base, size))
1304

hjk's avatar
hjk committed
1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317
    def readCString(self, base):
        inferior = self.selectedInferior()
        mem = ""
        while True:
            char = inferior.read_memory(base, 1)[0]
            if not char:
                break
            mem += char
            base += 1
        #if sys.version_info[0] >= 3:
        #    return mem.tobytes()
        return mem

1318
    def putFields(self, value, dumpBase = True):
1319
            fields = value.type.fields()
1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332

            #warn("TYPE: %s" % type)
            #warn("FIELDS: %s" % fields)
            baseNumber = 0
            for field in fields:
                #warn("FIELD: %s" % field)
                #warn("  BITSIZE: %s" % field.bitsize)
                #warn("  ARTIFICIAL: %s" % field.artificial)

                if field.name is None:
                    type = stripTypedefs(value.type)
                    innerType = type.target()
                    p = value.cast(innerType.pointer())
1333
                    for i in xrange(int(type.sizeof / innerType.sizeof)):
1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
                        with SubItem(self, i):
                            self.putItem(p.dereference())
                        p = p + 1
                    continue

                # Ignore vtable pointers for virtual inheritance.
                if field.name.startswith("_vptr."):
                    with SubItem(self, "[vptr]"):
                        # int (**)(void)
                        n = 100
                        self.putType(" ")
                        self.putValue(value[field.name])
                        self.putNumChild(n)
                        if self.isExpanded():
                            with Children(self):
                                p = value[field.name]
                                for i in xrange(n):
1351
                                    if toInteger(p.dereference()) != 0:
1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366
                                        with SubItem(self, i):
                                            self.putItem(p.dereference())
                                            self.putType(" ")
                                            p = p + 1
                    continue

                #warn("FIELD NAME: %s" % field.name)
                #warn("FIELD TYPE: %s" % field.type)
                if field.is_base_class:
                    # Field is base type. We cannot use field.name as part
                    # of the iname as it might contain spaces and other
                    # strange characters.
                    if dumpBase:
                        baseNumber += 1
                        with UnnamedSubItem(self, "@%d" % baseNumber):
1367
                            baseValue = value.cast(field.type)
1368 1369
                            self.put('iname="%s",' % self.currentIName)
                            self.put('name="[%s]",' % field.name)
1370 1371
                            self.putAddress(baseValue.address)
                            self.putItem(baseValue, False)
1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383
                elif len(field.name) == 0:
                    # Anonymous union. We need a dummy name to distinguish
                    # multiple anonymous unions in the struct.
                    self.anonNumber += 1
                    self.listAnonymous(value, "#%d" % self.anonNumber,
                        field.type)
                else:
                    # Named field.
                    with SubItem(self, field.name):
                        #bitsize = getattr(field, "bitsize", None)
                        #if not bitsize is None:
                        #    self.put("bitsize=\"%s\"" % bitsize)