gdbbridge.py 71.1 KB
Newer Older
hjk's avatar
hjk committed
1 2

import binascii
3 4 5 6 7 8 9 10 11
try:
    import __builtin__
except:
    import builtins
try:
    import gdb
except:
    pass

hjk's avatar
hjk committed
12 13
import inspect
import os
14
import os.path
15
import sys
16
import tempfile
hjk's avatar
hjk committed
17
import traceback
18 19
import struct

hjk's avatar
hjk committed
20

21 22
def warn(message):
    print("XXX: %s\n" % message.encode("latin1"))
23

24 25
from dumper import *
from qttypes import *
hjk's avatar
hjk committed
26 27 28
from stdtypes import *
from misctypes import *
from boosttypes import *
29
from creatortypes import *
hjk's avatar
hjk committed
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 66 67 68 69 70

#######################################################################
#
# 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 parseAndEvaluate(exp):
    return gdb.parse_and_eval(exp)

def listOfLocals(varList):
    frame = gdb.selected_frame()
    try:
        frame = gdb.selected_frame()
        #warn("FRAME %s: " % frame)
71
    except RuntimeError as error:
72 73 74 75 76 77 78 79 80
        warn("FRAME NOT ACCESSIBLE: %s" % error)
        return []
    except:
        warn("FRAME NOT ACCESSIBLE FOR UNKNOWN REASONS")
        return []

    try:
        block = frame.block()
        #warn("BLOCK: %s " % block)
81
    except RuntimeError as error:
82
        #warn("BLOCK IN FRAME NOT ACCESSIBLE: %s" % error)
83
        return []
84 85
    except:
        warn("BLOCK NOT ACCESSIBLE FOR UNKNOWN REASONS")
86
        return []
87 88 89 90 91 92 93 94 95 96

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

97
            if name == "__in_chrg" or name == "__PRETTY_FUNCTION__":
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
                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


def catchCliOutput(command):
    try:
        return gdb.execute(command, to_string=True).split("\n")
    except:
        pass
    filename = createTempFile()
    gdb.execute("set logging off")
#        gdb.execute("set logging redirect off")
    gdb.execute("set logging file %s" % filename)
#        gdb.execute("set logging redirect on")
    gdb.execute("set logging on")
    msg = ""
    try:
        gdb.execute(command)
174
    except RuntimeError as error:
175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280
        # For the first phase of core file loading this yield
        # "No symbol table is loaded.  Use the \"file\" command."
        msg = str(error)
    except:
        msg = "Unknown error"
    gdb.execute("set logging off")
#        gdb.execute("set logging redirect off")
    if len(msg):
        # Having that might confuse result handlers in the gdbengine.
        #warn("CLI ERROR: %s " % msg)
        removeTempFile(filename)
        return "CLI ERROR: %s " % msg
    temp = open(filename, "r")
    lines = []
    for line in temp:
        lines.append(line)
    temp.close()
    removeTempFile(filename)
    return lines


#######################################################################
#
# 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


#######################################################################
#
# Step Command
#
#######################################################################

def sal(args):
    (cmd, addr) = args.split(",")
    lines = catchCliOutput("info line *" + addr)
    fromAddr = "0x0"
    toAddr = "0x0"
    for line in lines:
        pos0from = line.find(" starts at address") + 19
        pos1from = line.find(" ", pos0from)
        pos0to = line.find(" ends at", pos1from) + 9
        pos1to = line.find(" ", pos0to)
        if pos1to > 0:
            fromAddr = line[pos0from : pos1from]
            toAddr = line[pos0to : pos1to]
    gdb.execute("maint packet sal%s,%s,%s" % (cmd,fromAddr, toAddr))

registerCommand("sal", sal)


#######################################################################
#
# 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):
281
    p = int(p)
282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300
    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()

301
def registerDumper(funcname, function):
302 303
    global qqDumpers, qqFormats, qqEditable
    try:
304 305
        #warn("FUNCTION: %s " % funcname)
        #funcname = function.func_name
306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325
        if funcname.startswith("qdump__"):
            type = funcname[7:]
            qqDumpers[type] = function
            qqFormats[type] = qqFormats.get(type, "")
        elif funcname.startswith("qform__"):
            type = funcname[7:]
            formats = ""
            try:
                formats = function()
            except:
                pass
            qqFormats[type] = formats
        elif funcname.startswith("qedit__"):
            type = funcname[7:]
            try:
                qqEditable[type] = function
            except:
                pass
    except:
        pass
hjk's avatar
hjk committed
326

327 328
def bbsetup(args = ''):
    global qqDumpers, qqFormats, qqEditable, typeCache
329 330 331
    qqDumpers = {}
    qqFormats = {}
    qqEditable = {}
332 333 334
    typeCache = {}
    module = sys.modules[__name__]

335 336 337 338 339
    #warn("KEYS: %s " % module.__dict__.keys())
    for name in module.__dict__.keys():
        #warn("KEY: %s " % name)
        #warn("FUNCT: %s " % module.__dict__[name])
        registerDumper(name, module.__dict__[name])
340 341 342 343

    result = "dumpers=["
    #qqNs = qtNamespace() # This is too early
    for key, value in qqFormats.items():
344
        if key in qqEditable:
345 346 347 348 349
            result += '{type="%s",formats="%s",editable="true"},' % (key, value)
        else:
            result += '{type="%s",formats="%s"},' % (key, value)
    result += ']'
    #result += ',namespace="%s"' % qqNs
350
    print(result)
351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395
    return result

registerCommand("bbsetup", bbsetup)


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

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

    def __call__(self, d, value):
        printer = self.printer.gen_printer(value)
        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 importPlainDumper(printer):
    global qqDumpers, qqFormats
    name = printer.name.replace("::", "__")
    qqDumpers[name] = PlainDumper(printer)
    qqFormats[name] = ""

def importPlainDumpers(args):
    return
    for obj in gdb.objfiles():
        for printers in obj.pretty_printers + gdb.pretty_printers:
            for printer in printers.subprinters:
                importPlainDumper(printer)

registerCommand("importPlainDumpers", importPlainDumpers)


396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438
#gdb.Value.child = impl_Value_child

# Fails on SimulatorQt.
tempFileCounter = 0
try:
    # Test if 2.6 is used (Windows), trigger exception and default
    # to 2nd version.
    file = tempfile.NamedTemporaryFile(prefix="py_",delete=True)
    file.close()
    def createTempFile():
        file = tempfile.NamedTemporaryFile(prefix="py_",delete=True)
        file.close()
        return file.name

except:
    def createTempFile():
        global tempFileCounter
        tempFileCounter += 1
        fileName = "%s/py_tmp_%d_%d" \
            % (tempfile.gettempdir(), os.getpid(), tempFileCounter)
        return fileName

def removeTempFile(name):
    try:
        os.remove(name)
    except:
        pass



#
# VTable
#
def hasVTable(type):
    fields = type.fields()
    if len(fields) == 0:
        return False
    if fields[0].is_base_class:
        return hasVTable(fields[0].type)
    return str(fields[0].type) ==  "int (**)(void)"

def dynamicTypeName(value):
    if hasVTable(value.type):
439
        #vtbl = str(parseAndEvaluate("{int(*)(int)}%s" % int(value.address)))
440 441
        try:
            # Fails on 7.1 due to the missing to_string.
442
            vtbl = gdb.execute("info symbol {int*}%s" % int(value.address),
443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477
                to_string = True)
            pos1 = vtbl.find("vtable ")
            if pos1 != -1:
                pos1 += 11
                pos2 = vtbl.find(" +", pos1)
                if pos2 != -1:
                    return vtbl[pos1 : pos2]
        except:
            pass
    return str(value.type)

def downcast(value):
    try:
        return value.cast(value.dynamic_type)
    except:
        pass
    #try:
    #    return value.cast(lookupType(dynamicTypeName(value)))
    #except:
    #    pass
    return value

def expensiveDowncast(value):
    try:
        return value.cast(value.dynamic_type)
    except:
        pass
    try:
        return value.cast(lookupType(dynamicTypeName(value)))
    except:
        pass
    return value

typeCache = {}

478 479 480 481 482 483 484 485 486 487 488 489
typesToReport = {}
typesReported = {}

def addToCache(type):
    global typesReported
    global typesToReport
    typename = str(type)
    if typename in typesReported:
        return
    typesReported[typename] = True
    typesToReport[typename] = type

490 491 492 493 494 495 496 497 498 499 500 501 502 503
def lookupType(typestring):
    global typeCache
    global typesToReport
    type = typeCache.get(typestring)
    #warn("LOOKUP 1: %s -> %s" % (typestring, type))
    if not type is None:
        return type

    if typestring == "void":
        type = gdb.lookup_type(typestring)
        typeCache[typestring] = type
        typesToReport[typestring] = type
        return type

504 505 506 507 508 509 510 511
    #try:
    #    type = gdb.parse_and_eval("{%s}&main" % typestring).type
    #    if not type is None:
    #        typeCache[typestring] = type
    #        typesToReport[typestring] = type
    #        return type
    #except:
    #    pass
512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566

    # See http://sourceware.org/bugzilla/show_bug.cgi?id=13269
    # gcc produces "{anonymous}", gdb "(anonymous namespace)"
    # "<unnamed>" has been seen too. The only thing gdb
    # understands when reading things back is "(anonymous namespace)"
    if typestring.find("{anonymous}") != -1:
        ts = typestring
        ts = ts.replace("{anonymous}", "(anonymous namespace)")
        type = lookupType(ts)
        if not type is None:
            typeCache[typestring] = type
            typesToReport[typestring] = type
            return type

    #warn(" RESULT FOR 7.2: '%s': %s" % (typestring, type))

    # This part should only trigger for
    # gdb 7.1 for types with namespace separators.
    # And anonymous namespaces.

    ts = typestring
    while True:
        #warn("TS: '%s'" % ts)
        if ts.startswith("class "):
            ts = ts[6:]
        elif ts.startswith("struct "):
            ts = ts[7:]
        elif ts.startswith("const "):
            ts = ts[6:]
        elif ts.startswith("volatile "):
            ts = ts[9:]
        elif ts.startswith("enum "):
            ts = ts[5:]
        elif ts.endswith(" const"):
            ts = ts[:-6]
        elif ts.endswith(" volatile"):
            ts = ts[:-9]
        elif ts.endswith("*const"):
            ts = ts[:-5]
        elif ts.endswith("*volatile"):
            ts = ts[:-8]
        else:
            break

    if ts.endswith('*'):
        type = lookupType(ts[0:-1])
        if not type is None:
            type = type.pointer()
            typeCache[typestring] = type
            typesToReport[typestring] = type
            return type

    try:
        #warn("LOOKING UP '%s'" % ts)
        type = gdb.lookup_type(ts)
567
    except RuntimeError as error:
568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597
        #warn("LOOKING UP '%s': %s" % (ts, error))
        # See http://sourceware.org/bugzilla/show_bug.cgi?id=11912
        exp = "(class '%s'*)0" % ts
        try:
            type = parseAndEvaluate(exp).type.target()
        except:
            # Can throw "RuntimeError: No type named class Foo."
            pass
    except:
        #warn("LOOKING UP '%s' FAILED" % ts)
        pass

    if not type is None:
        typeCache[typestring] = type
        typesToReport[typestring] = type
        return type

    # This could still be None as gdb.lookup_type("char[3]") generates
    # "RuntimeError: No type named char[3]"
    typeCache[typestring] = type
    typesToReport[typestring] = type
    return type

def templateArgument(type, position):
    try:
        # This fails on stock 7.2 with
        # "RuntimeError: No type named myns::QObject.\n"
        return type.template_argument(position)
    except:
        # That's something like "myns::QList<...>"
598
        return lookupType(self.extractTemplateArgument(str(type.strip_typedefs()), position))
599 600 601 602 603 604


# Workaround for gdb < 7.1
def numericTemplateArgument(type, position):
    try:
        return int(type.template_argument(position))
605
    except RuntimeError as error:
606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661
        # ": 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)


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 value(expr):
    value = parseAndEvaluate(expr)
    try:
        return int(value)
    except:
        return str(value)


#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


qqNs = None

def qtNamespace():
    # FIXME: This only works when call from inside a Qt function frame.
    global qqNs
    if not qqNs is None:
        return qqNs
    try:
662
        str = gdb.execute("ptype QString::Null", to_string=True)
663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702
        # The result looks like:
        # "type = const struct myns::QString::Null {"
        # "    <no data fields>"
        # "}"
        pos1 = str.find("struct") + 7
        pos2 = str.find("QString::Null")
        if pos1 > -1 and pos2 > -1:
            qqNs = str[pos1:pos2]
            return qqNs
        return ""
    except:
        return ""

def stripTypedefs(type):
    type = type.unqualified()
    while type.code == TypedefCode:
        type = type.strip_typedefs().unqualified()
    return type


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

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


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

def bbedit(args):
    global qqEditable
    (type, expr, value) = args.split(",")
703
    type = b16decode(type)
704 705 706 707 708 709 710
    ns = qtNamespace()
    if type.startswith(ns):
        type = type[len(ns):]
    type = type.replace("::", "__")
    pos = type.find('<')
    if pos != -1:
        type = type[0:pos]
711 712
    expr = b16decode(expr)
    value = b16decode(value)
713 714 715 716 717 718 719 720 721 722 723 724 725 726 727
    #warn("EDIT: %s %s %s %s: " % (pos, type, expr, value))
    if qqEditable.has_key(type):
        qqEditable[type](expr, value)
    else:
        gdb.execute("set (%s)=%s" % (expr, value))

registerCommand("bbedit", bbedit)


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

728

729 730
def bb(args):
    global typesToReport
731 732 733
    global theDumper
    theDumper.run(args)
    output = theDumper.output
734
    output.append('],typeinfo=[')
735 736
    for name in typesToReport.keys():
        type = typesToReport[name]
737 738 739
        # Happens e.g. for '(anonymous namespace)::InsertDefOperation'
        if not type is None:
            output.append('{name="%s",size="%s"}'
740
                % (b64encode(name), type.sizeof))
741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762
    output.append(']')
    typesToReport = {}
    return "".join(output)


def p1(args):
    import cProfile
    cProfile.run('bb("%s")' % args, "/tmp/bbprof")
    import pstats
    pstats.Stats('/tmp/bbprof').sort_stats('time').print_stats()
    return ""


def p2(args):
    import timeit
    return timeit.repeat('bb("%s")' % args,
        'from __main__ import bb', number=10)

registerCommand("bb", bb)
registerCommand("p1", p1)
registerCommand("p2", p2)

763 764 765 766 767
def extractQtVersion():
    version = str(gdb.parse_and_eval("qVersion()"))
    (major, minor, patch) = version[version.find('"')+1:version.rfind('"')].split('.')
    return 0x10000 * int(major) + 0x100 * int(minor) + int(patch)

768 769 770 771 772 773 774 775

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


776 777
class Dumper(DumperBase):

778
    def __init__(self):
779 780
        DumperBase.__init__(self)

781
        # These values will be kept between calls to 'run'.
782
        self.isGdb = True
783 784 785 786
        self.childEventAddress = None
        self.cachedQtVersion = None

    def run(self, args):
787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
        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 = {}

        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(","))
            elif arg.startswith("typeformats:"):
                for f in arg[pos:].split(","):
                    pos = f.find("=")
                    if pos != -1:
826
                        type = b16decode(f[0:pos])
827 828 829 830 831 832 833
                        self.typeformats[type] = int(f[pos+1:])
            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:"):
834
                watchers = b16decode(arg[pos:])
835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887

        self.useDynamicType = "dyntype" in options
        self.useFancy = "fancy" in options
        self.passExceptions = "pe" in options
        #self.passExceptions = True
        self.autoDerefPointers = "autoderef" in options
        self.partialUpdate = "partial" in options
        self.tooltipOnly = "tooltiponly" in options
        self.noLocals = "nolocals" in options
        self.ns = qtNamespace()

        #warn("NAMESPACE: '%s'" % self.ns)
        #warn("VARIABLES: %s" % varList)
        #warn("EXPANDED INAMES: %s" % self.expandedINames)
        #warn("WATCHERS: %s" % watchers)
        #warn("PARTIAL: %s" % self.partialUpdate)
        #warn("NO LOCALS: %s" % self.noLocals)
        module = sys.modules[__name__]

        #
        # 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 = []

        if fullUpdateNeeded and not self.tooltipOnly and not self.noLocals:
            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
888
                item.value = self.parseAndEvaluate(resultVarName)
889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909
                locals.append(item)
            except:
                # Don't bother. It's only supplementary information anyway.
                pass

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

                type = value.type.unqualified()
                typeName = str(type)

                # Special handling for char** argv.
                if type.code == PointerCode \
                        and item.iname == "local.argv" \
                        and typeName == "char **":
                    n = 0
                    p = value
                    # p is 0 for "optimized out" cases. Or contains rubbish.
                    try:
910 911
                        if not self.isNull(p):
                            while not self.isNull(p.dereference()) and n <= 100:
912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948
                                p += 1
                                n += 1
                    except:
                        pass

                    with TopLevelItem(self, item.iname):
                        self.put('iname="local.argv",name="argv",')
                        self.putItemCount(n, 100)
                        self.putType(typeName)
                        self.putNumChild(n)
                        if self.currentIName in self.expandedINames:
                            p = value
                            with Children(self, n):
                                for i in xrange(n):
                                    self.putSubItem(i, p.dereference())
                                    p += 1
                    continue

                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:
                self.put(",")
                for watcher in watchers.split("##"):
                    (exp, iname) = watcher.split("#")
                    self.handleWatch(exp, iname)

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

949

950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006
    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

1007 1008 1009
    def parseAndEvaluate(self, exp):
        return gdb.parse_and_eval(exp)

1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030
    def call2(self, value, func, args):
        # 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))
        type = stripClassTag(str(value.type))
        if type.find(":") >= 0:
            type = "'" + type + "'"
        # 'class' is needed, see http://sourceware.org/bugzilla/show_bug.cgi?id=11912
        exp = "((class %s*)%s)->%s(%s)" % (type, value.address, func, arg)
        #warn("CALL: %s" % exp)
        result = None
        try:
1031
            result = self.parseAndEvaluate(exp)
1032 1033 1034 1035 1036 1037 1038 1039
        except:
            pass
        #warn("  -> %s" % result)
        return result

    def call(self, value, func, *args):
        return self.call2(value, func, args)

hjk's avatar
hjk committed
1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
    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)
        value = parseAndEvaluate("$d").dereference()
        #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+$d)))")
        value = parseAndEvaluate("$d").dereference()
        #warn("  TYPE: %s" % value.type)
        #warn("  ADDR: %s" % value.address)
        #warn("  VALUE: %s" % value)
        return value

1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100
    def childAt(self, value, index):
        field = value.type.fields()[index]
        if len(field.name):
            return value[field.name]
        # 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]

    def directBaseClass(self, typeobj, index = 0):
        # FIXME: Check it's really a base.
        return typeobj.fields()[index]

    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
1101
        #    return p.cast(self.lookupType("void").pointer()) == 0
1102 1103 1104 1105 1106 1107 1108 1109
        #except:
        #    return False
        try:
            # Can fail with: "RuntimeError: Cannot access memory at address 0x5"
            return toInteger(p) == 0
        except:
            return False

1110 1111 1112 1113 1114 1115
    def templateArgument(self, typeobj, position):
        return templateArgument(typeobj, position)

    def numericTemplateArgument(self, typeobj, position):
        return numericTemplateArgument(typeobj, position)

1116 1117
    def lookupType(self, typeName):
        return lookupType(typeName)
1118 1119 1120

    def handleWatch(self, exp, iname):
        exp = str(exp)
1121
        escapedExp = b64encode(exp);
1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138
        #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
1139
                except RuntimeError as error:
1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155
                    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:
1156
                    value = self.parseAndEvaluate(exp)
1157 1158 1159 1160 1161 1162 1163 1164
                    self.putItem(value)
                except RuntimeError:
                    self.currentType = " "
                    self.currentValue = "<no such value>"
                    self.currentChildNumChild = -1
                    self.currentNumChild = 0
                    self.putNumChild(0)

1165
    def intType(self):
hjk's avatar
hjk committed
1166
        return self.lookupType('int')
1167 1168

    def charType(self):
hjk's avatar
hjk committed
1169
        return self.lookupType('char')
1170 1171

    def sizetType(self):
hjk's avatar
hjk committed
1172
        return self.lookupType('size_t')
1173 1174

    def charPtrType(self):
hjk's avatar
hjk committed
1175
        return self.lookupType('char*')
1176

1177 1178 1179
    def intPtrType(self):
        return self.lookupType('int*')

1180
    def voidPtrType(self):
hjk's avatar
hjk committed
1181
        return self.lookupType('void*')
1182

1183
    def addressOf(self, value):
1184
        return toInteger(value.address)
1185

1186
    def createPointerValue(self, address, pointeeType):
1187 1188 1189 1190 1191 1192 1193 1194
        # 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))
1195 1196 1197 1198 1199 1200 1201 1202

    def intSize(self):
        return 4

    def ptrSize(self):
        return self.lookupType('void*').sizeof

    def createValue(self, address, referencedType):
1203 1204 1205 1206 1207
        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))
1208

1209 1210
    def selectedInferior(self):
        try:
1211
            # gdb.Inferior is new in gdb 7.2
1212 1213 1214 1215 1216
            return gdb.selected_inferior()
        except:
            # Pre gdb 7.4. Right now we don't have more than one inferior anyway.
            return gdb.inferiors()[0]

1217
    def readRawMemory(self, addr, size):
1218
        mem = self.selectedInferior().read_memory(addr, size)
1219 1220 1221 1222 1223 1224 1225
        if sys.version_info[0] >= 3:
            mem.tobytes()
        return mem

    # FIXME: The commented out versions do not work with
    # a Python 3 based GDB due to the bug addressed in
    # https://sourceware.org/ml/gdb-patches/2013-09/msg00571.html
1226
    def dereference(self, addr):
1227
        #return long(gdb.Value(addr).cast(self.voidPtrType().pointer()).dereference())
1228 1229 1230
        ptrSize = self.ptrSize()
        code = "I" if ptrSize == 4 else "Q"
        return struct.unpack(code, self.readRawMemory(addr, ptrSize))[0]
1231

1232 1233 1234
    def extractInt64(self, addr):
        return struct.unpack("q", self.readRawMemory(addr, 8))[0]

1235
    def extractInt(self, addr):
1236 1237
        #return long(gdb.Value(addr).cast(self.intPtrType()).dereference())
        return struct.unpack("i", self.readRawMemory(addr, 4))[0]
1238

1239
    def extractByte(self, addr):
1240 1241
        #return long(gdb.Value(addr).cast(self.charPtrType()).dereference()) & 0xFF
        return struct.unpack("b", self.readRawMemory(addr, 1))[0]
1242

1243 1244
    # Do not use value.address here as this might not have one,
    # i.e. be the result of an inferior call
1245
    def dereferenceValue(self, value):
1246
        return toInteger(value.cast(self.voidPtrType()))
1247

hjk's avatar
hjk committed
1248 1249
    def isQObject(self, value):
        try:
1250
        #if True:
1251
            vtable = self.dereference(toInteger(value.address)) # + ptrSize
1252
            metaObjectEntry = self.dereference(vtable) # It's the first entry.
1253
            #warn("MO: 0x%x " % metaObjectEntry)
1254
            s = gdb.execute("info symbol 0x%x" % metaObjectEntry, to_string=True)
1255
            #warn("S: %s " % s)
1256 1257 1258
            #return s.find("::metaObject() const") > 0
            return s.find("::metaObject() const") > 0 or s.find("10metaObjectEv") > 0
            #return str(metaObjectEntry).find("::metaObject() const") > 0
hjk's avatar
hjk committed
1259 1260
        except:
            return False
1261 1262

    def isQObject_B(self, value):
hjk's avatar
hjk committed
1263 1264
        # Alternative: Check for specific values, like targeting the
        # 'childEvent' member which is typically not overwritten, slot 8.
1265 1266 1267 1268 1269
        # ~"Symbol \"Myns::QObject::childEvent(Myns::QChildEvent*)\" is a
        #  function at address 0xb70f691a.\n"
        if self.childEventAddress == None:
            try:
                loc = gdb.execute("info address ::QObject::childEvent", to_string=True)
1270
                self.childEventAddress = toInteger(loc[loc.rfind(' '):-2], 16)
1271 1272 1273 1274
            except:
                self.childEventAddress = 0

        try:
1275
            vtable = self.dereference(toInteger(value.address))
1276 1277 1278
            return self.childEventAddress == self.dereference(vtable + 8 * self.ptrSize())
        except:
            return False
hjk's avatar
hjk committed
1279

1280 1281 1282 1283 1284 1285 1286 1287
    def put(self, value):
        self.output.append(value)

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

    def childRange(self):
        if self.currentMaxNumChild is None:
1288 1289
            return xrange(0, toInteger(self.currentNumChild))
        return xrange(min(toInteger(self.currentMaxNumChild), toInteger(self.currentNumChild)))
1290

1291
    def qtVersion(self):
1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302
        if self.cachedQtVersion is None:
            try:
                self.cachedQtVersion = extractQtVersion()
            except:
                try:
                    # This will fail on Qt 5
                    gdb.execute("ptype QString::shared_empty", to_string=True)
                    self.cachedQtVersion = 0x040800
                except:
                    self.cachedQtVersion = 0x050000
        return self.cachedQtVersion
1303

1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327
    # Convenience function.
    def putItemCount(self, count, maximum = 1000000000):
        # This needs to override the default value, so don't use 'put' directly.
        if count > maximum:
            self.putValue('<>%s items>' % maximum)
        else:
            self.putValue('<%s items>' % count)

    def putType(self, type, priority = 0):
        # Higher priority values override lower ones.
        if priority >= self.currentTypePriority:
            self.currentType = str(type)
            self.currentTypePriority = priority

    def putNoType(self):
        # FIXME: replace with something that does not need special handling
        # in SubItem.__exit__().
        self.putBetterType(" ")

    def putInaccessible(self):
        #self.putBetterType(" ")
        self.putNumChild(0)
        self.currentValue = None

1328
    def putBetterType(self, type):
1329 1330 1331 1332 1333 1334
        self.currentType = str(type)
        self.currentTypePriority = self.currentTypePriority + 1

    def putAddress(self, addr):
        if self.currentPrintsAddress:
            try:
1335 1336 1337
                # addr can be "None", int(None) fails.
                #self.put('addr="0x%x",' % int(addr))
                self.currentAddress = 'addr="0x%x",' % toInteger(addr)
1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351
            except:
                pass

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

    def putEmptyValue(self, priority = -10):
        if priority >= self.currentValuePriority:
            self.currentValue = ""
            self.currentValuePriority = priority
            self.currentValueEncoding = None

hjk's avatar
hjk committed
1352 1353 1354
    def putSimpleValue(self, value, encoding = None, priority = 0):
        self.putValue(value, encoding, priority)

1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367
    def putValue(self, value, encoding = None, priority = 0):
        # Higher priority values override lower ones.
        if priority >= self.currentValuePriority:
            self.currentValue = value
            self.currentValuePriority = priority
            self.currentValueEncoding = encoding

    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
1368
                self.lookupType("unsigned long")), None, -1)
1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405

    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 putName(self, name):
        self.put('name="%s",' % name)

    def isExpanded(self):
        #warn("IS EXPANDED: %s in %s: %s" % (self.currentIName,
        #    self.expandedINames, self.currentIName in self.expandedINames))
        return self.currentIName in self.expandedINames

    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)
        if len(self.ns) > 0 and type.startswith(self.ns):
            type = type[len(self.ns):]
        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
1406
        if self.isSimpleType(type):
1407
            return True
1408
        return self.isKnownMovableType(self.stripNamespaceFromType(str(type)))
1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421

    def putIntItem(self, name, value):
        with SubItem(self, name):
            self.putValue(value)
            self.putType("int")
            self.putNumChild(0)

    def putBoolItem(self, name, value):
        with SubItem(self, name):
            self.putValue(value)
            self.putType("bool")
            self.putNumChild(0)

Eike Ziller's avatar
Eike Ziller committed
1422 1423 1424 1425 1426 1427
    def putGenericItem(self, name, type, value, encoding = None):
        with SubItem(self, name):
            self.putValue(value, encoding)
            self.putType(type)
            self.putNumChild(0)

1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442
    def currentItemFormat(self):
        format = self.formats.get(self.currentIName)
        if format is None:
            format = self.typeformats.get(stripForFormat(str(self.currentType)))
        return format

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

    def putNamedSubItem(self, component, value, name):
        with SubItem(self, component):
            self.putName(name)
            self.putItem(value)

1443 1444 1445 1446 1447 1448
    def isSimpleType(self, typeobj):
        code = typeobj.code
        return code == BoolCode \
            or code == CharCode \
            or code == IntCode \
            or code == FloatCode \
1449
            or code == EnumCode
1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480

    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

1481
    def tryPutArrayContents(self, typeobj, base, n):
1482 1483
        enc = self.simpleEncoding(typeobj)
        if not enc:
1484 1485 1486
            return False
        size = n * typeobj.sizeof;
        self.put('childtype="%s",' % typeobj)
1487 1488
        self.put('addrbase="0x%x",' % toInteger(base))
        self.put('addrstep="0x%x",' % toInteger(typeobj.sizeof))
1489
        self.put('arrayencoding="%s",' % enc)
1490
        self.put('arraydata="')
1491
        self.put(self.readMemory(base, size))
1492 1493 1494
        self.put('",')
        return True

hjk's avatar
hjk committed
1495 1496 1497 1498 1499 1500
    def isReferenceType(self, typeobj):
        return typeobj.code == gdb.TYPE_CODE_REF

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

1501 1502 1503 1504 1505
    def putPlotData(self, type, base, n, plotFormat):
        if self.isExpanded():
            self.putArrayData(type, base, n)
        if not hasPlot():
            return
1506
        if not self.isSimpleType(type):
1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528
            #self.putValue(self.currentValue + " (not plottable)")
            self.putValue(self.currentValue)
            self.putField("plottable", "0")
            return
        global gnuplotPipe
        global gnuplotPid
        format = self.currentItemFormat()
        iname = self.currentIName
        #if False:
        if format != plotFormat:
            if iname in gnuplotPipe:
                os.kill(gnuplotPid[iname], 9)
                del gnuplotPid[iname]
                gnuplotPipe[iname].terminate()
                del gnuplotPipe[iname]
            return
        base = base.cast(type.pointer())
        if not iname in gnuplotPipe:
            gnuplotPipe[iname] = subprocess.Popen(["gnuplot"],
                    stdin=subprocess.PIPE)
            gnuplotPid[iname] = gnuplotPipe[iname].pid
        f = gnuplotPipe[iname].stdin;
1529
        # On Ubuntu install gnuplot-x11
1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545
        f.write("set term wxt noraise\n")
        f.write("set title 'Data fields'\n")
        f.write("set xlabel 'Index'\n")
        f.write("set ylabel 'Value'\n")
        f.write("set grid\n")
        f.write("set style data lines;\n")
        f.write("plot  '-' title '%s'\n" % iname)
        for i in range(1, n):
            f.write(" %s\n" % base.dereference())
            base += 1
        f.write("e\n")


    def putArrayData(self, type, base, n,
            childNumChild = None, maxNumChild = 10000):