forked from qt-creator/qt-creator
df2efd7df6
Gdb from MinGW 7.3.0 and 5.3.0 crashes on Windows when we try to evaluate expressions that result in a function call. At least prevent evaluating such expressions from within the dumper. Task-number: QTCREATORBUG-23477 Change-Id: Ic14148a43b95aa1b52c1d4488958fa66eccdc0b5 Reviewed-by: Christian Stenger <christian.stenger@qt.io>
1519 lines
56 KiB
Python
1519 lines
56 KiB
Python
############################################################################
|
|
#
|
|
# Copyright (C) 2016 The Qt Company Ltd.
|
|
# Contact: https://www.qt.io/licensing/
|
|
#
|
|
# This file is part of Qt Creator.
|
|
#
|
|
# Commercial License Usage
|
|
# Licensees holding valid commercial Qt licenses may use this file in
|
|
# accordance with the commercial license agreement provided with the
|
|
# Software or, alternatively, in accordance with the terms contained in
|
|
# a written agreement between you and The Qt Company. For licensing terms
|
|
# and conditions see https://www.qt.io/terms-conditions. For further
|
|
# information use the contact form at https://www.qt.io/contact-us.
|
|
#
|
|
# GNU General Public License Usage
|
|
# Alternatively, this file may be used under the terms of the GNU
|
|
# General Public License version 3 as published by the Free Software
|
|
# Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
|
|
# included in the packaging of this file. Please review the following
|
|
# information to ensure the GNU General Public License requirements will
|
|
# be met: https://www.gnu.org/licenses/gpl-3.0.html.
|
|
#
|
|
############################################################################
|
|
|
|
try:
|
|
import __builtin__
|
|
except:
|
|
import builtins
|
|
|
|
import gdb
|
|
import os
|
|
import os.path
|
|
import re
|
|
import sys
|
|
import struct
|
|
import tempfile
|
|
|
|
from dumper import DumperBase, Children, toInteger, TopLevelItem
|
|
from utils import TypeCode
|
|
|
|
#######################################################################
|
|
#
|
|
# Infrastructure
|
|
#
|
|
#######################################################################
|
|
|
|
|
|
def safePrint(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):
|
|
safePrint(func(args))
|
|
|
|
Command()
|
|
|
|
|
|
#######################################################################
|
|
#
|
|
# Convenience
|
|
#
|
|
#######################################################################
|
|
|
|
# For CLI dumper use, see README.txt
|
|
class PPCommand(gdb.Command):
|
|
def __init__(self):
|
|
super(PPCommand, self).__init__('pp', gdb.COMMAND_OBSCURE)
|
|
|
|
def invoke(self, args, from_tty):
|
|
print(theCliDumper.fetchVariable(args))
|
|
|
|
|
|
PPCommand()
|
|
|
|
# Just convenience 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):
|
|
p = int(p)
|
|
r = []
|
|
for i in range(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
|
|
safePrint(scanStack(gdb.parse_and_eval('$sp'), int(args)))
|
|
|
|
|
|
ScanStackCommand()
|
|
|
|
|
|
#######################################################################
|
|
#
|
|
# Import plain gdb pretty printers
|
|
#
|
|
#######################################################################
|
|
|
|
class PlainDumper():
|
|
def __init__(self, printer):
|
|
self.printer = printer
|
|
self.typeCache = {}
|
|
|
|
def __call__(self, d, value):
|
|
try:
|
|
printer = self.printer.gen_printer(value.nativeValue)
|
|
except:
|
|
printer = self.printer.invoke(value.nativeValue)
|
|
d.putType(value.nativeValue.type.name)
|
|
val = printer.to_string()
|
|
if isinstance(val, str):
|
|
# encode and avoid extra quotes ('"') at beginning and end
|
|
d.putValue(d.hexencode(val), 'utf8:1:0')
|
|
elif sys.version_info[0] <= 2 and isinstance(val, unicode):
|
|
d.putValue(val)
|
|
elif val is not None: # Assuming LazyString
|
|
d.putCharArrayValue(val.address, val.length,
|
|
val.type.target().sizeof)
|
|
|
|
lister = getattr(printer, 'children', None)
|
|
if lister is None:
|
|
d.putNumChild(0)
|
|
else:
|
|
if d.isExpanded():
|
|
children = lister()
|
|
with Children(d):
|
|
i = 0
|
|
for (name, child) in children:
|
|
d.putSubItem(name, d.fromNativeValue(child))
|
|
i += 1
|
|
if i > 1000:
|
|
break
|
|
d.putNumChild(1)
|
|
|
|
|
|
def importPlainDumpers(args):
|
|
if args == 'off':
|
|
try:
|
|
gdb.execute('disable pretty-printer .* .*')
|
|
except:
|
|
# Might occur in non-ASCII directories
|
|
DumperBase.warn('COULD NOT DISABLE PRETTY PRINTERS')
|
|
else:
|
|
theDumper.importPlainDumpers()
|
|
|
|
|
|
registerCommand('importPlainDumpers', importPlainDumpers)
|
|
|
|
|
|
class OutputSaver():
|
|
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 exType is not None:
|
|
self.d.showException('OUTPUTSAVER', exType, exValue, exTraceBack)
|
|
self.d.output = self.savedOutput
|
|
else:
|
|
self.savedOutput += self.d.output
|
|
self.d.output = self.savedOutput
|
|
return False
|
|
|
|
|
|
#######################################################################
|
|
#
|
|
# The Dumper Class
|
|
#
|
|
#######################################################################
|
|
|
|
|
|
class Dumper(DumperBase):
|
|
|
|
def __init__(self):
|
|
DumperBase.__init__(self)
|
|
|
|
# These values will be kept between calls to 'fetchVariables'.
|
|
self.isGdb = True
|
|
self.typeCache = {}
|
|
self.interpreterBreakpointResolvers = []
|
|
|
|
def prepare(self, args):
|
|
self.output = ''
|
|
self.setVariableFetchingOptions(args)
|
|
|
|
def fromFrameValue(self, nativeValue):
|
|
#DumperBase.warn('FROM FRAME VALUE: %s' % nativeValue.address)
|
|
val = nativeValue
|
|
try:
|
|
val = nativeValue.cast(nativeValue.dynamic_type)
|
|
except:
|
|
pass
|
|
return self.fromNativeValue(val)
|
|
|
|
def fromNativeValue(self, nativeValue):
|
|
#DumperBase.warn('FROM NATIVE VALUE: %s' % nativeValue)
|
|
self.check(isinstance(nativeValue, gdb.Value))
|
|
nativeType = nativeValue.type
|
|
code = nativeType.code
|
|
if code == gdb.TYPE_CODE_REF:
|
|
targetType = self.fromNativeType(nativeType.target().unqualified())
|
|
val = self.createReferenceValue(toInteger(nativeValue.address), targetType)
|
|
val.nativeValue = nativeValue
|
|
#DumperBase.warn('CREATED REF: %s' % val)
|
|
return val
|
|
if code == gdb.TYPE_CODE_PTR:
|
|
try:
|
|
nativeTargetValue = nativeValue.dereference()
|
|
except:
|
|
nativeTargetValue = None
|
|
targetType = self.fromNativeType(nativeType.target().unqualified())
|
|
val = self.createPointerValue(toInteger(nativeValue), targetType)
|
|
# The nativeValue is needed in case of multiple inheritance, see
|
|
# QTCREATORBUG-17823. Using it triggers nativeValueDereferencePointer()
|
|
# later which
|
|
# is surprisingly expensive.
|
|
val.nativeValue = nativeValue
|
|
#DumperBase.warn('CREATED PTR 1: %s' % val)
|
|
if nativeValue.address is not None:
|
|
val.laddress = toInteger(nativeValue.address)
|
|
#DumperBase.warn('CREATED PTR 2: %s' % val)
|
|
return val
|
|
if code == gdb.TYPE_CODE_TYPEDEF:
|
|
targetType = nativeType.strip_typedefs().unqualified()
|
|
#DumperBase.warn('TARGET TYPE: %s' % targetType)
|
|
if targetType.code == gdb.TYPE_CODE_ARRAY:
|
|
val = self.Value(self)
|
|
else:
|
|
try:
|
|
# Cast may fail for arrays, for typedefs to __uint128_t with
|
|
# gdb.error: That operation is not available on integers
|
|
# of more than 8 bytes.
|
|
# See test for Bug5799, QTCREATORBUG-18450.
|
|
val = self.fromNativeValue(nativeValue.cast(targetType))
|
|
except:
|
|
val = self.Value(self)
|
|
#DumperBase.warn('CREATED TYPEDEF: %s' % val)
|
|
else:
|
|
val = self.Value(self)
|
|
|
|
val.nativeValue = nativeValue
|
|
if nativeValue.address is not None:
|
|
val.laddress = toInteger(nativeValue.address)
|
|
else:
|
|
size = nativeType.sizeof
|
|
chars = self.lookupNativeType('unsigned char')
|
|
y = nativeValue.cast(chars.array(0, int(nativeType.sizeof - 1)))
|
|
buf = bytearray(struct.pack('x' * size))
|
|
for i in range(size):
|
|
try:
|
|
buf[i] = int(y[i])
|
|
except:
|
|
pass
|
|
val.ldata = bytes(buf)
|
|
|
|
val.type = self.fromNativeType(nativeType)
|
|
val.lIsInScope = not nativeValue.is_optimized_out
|
|
code = nativeType.code
|
|
if code == gdb.TYPE_CODE_ENUM:
|
|
val.ldisplay = str(nativeValue)
|
|
intval = int(nativeValue)
|
|
if val.ldisplay != intval:
|
|
val.ldisplay += ' (%s)' % intval
|
|
elif code == gdb.TYPE_CODE_COMPLEX:
|
|
val.ldisplay = str(nativeValue)
|
|
#elif code == gdb.TYPE_CODE_ARRAY:
|
|
# val.type.ltarget = nativeValue[0].type.unqualified()
|
|
return val
|
|
|
|
def ptrSize(self):
|
|
result = gdb.lookup_type('void').pointer().sizeof
|
|
self.ptrSize = lambda: result
|
|
return result
|
|
|
|
def fromNativeType(self, nativeType):
|
|
self.check(isinstance(nativeType, gdb.Type))
|
|
code = nativeType.code
|
|
#DumperBase.warn('FROM NATIVE TYPE: %s' % nativeType)
|
|
nativeType = nativeType.unqualified()
|
|
|
|
if code == gdb.TYPE_CODE_PTR:
|
|
#DumperBase.warn('PTR')
|
|
targetType = self.fromNativeType(nativeType.target().unqualified())
|
|
return self.createPointerType(targetType)
|
|
|
|
if code == gdb.TYPE_CODE_REF:
|
|
#DumperBase.warn('REF')
|
|
targetType = self.fromNativeType(nativeType.target().unqualified())
|
|
return self.createReferenceType(targetType)
|
|
|
|
if hasattr(gdb, "TYPE_CODE_RVALUE_REF"):
|
|
if code == gdb.TYPE_CODE_RVALUE_REF:
|
|
#DumperBase.warn('RVALUEREF')
|
|
targetType = self.fromNativeType(nativeType.target())
|
|
return self.createRValueReferenceType(targetType)
|
|
|
|
if code == gdb.TYPE_CODE_ARRAY:
|
|
#DumperBase.warn('ARRAY')
|
|
nativeTargetType = nativeType.target().unqualified()
|
|
targetType = self.fromNativeType(nativeTargetType)
|
|
count = nativeType.sizeof // nativeTargetType.sizeof
|
|
return self.createArrayType(targetType, count)
|
|
|
|
if code == gdb.TYPE_CODE_TYPEDEF:
|
|
#DumperBase.warn('TYPEDEF')
|
|
nativeTargetType = nativeType.unqualified()
|
|
while nativeTargetType.code == gdb.TYPE_CODE_TYPEDEF:
|
|
nativeTargetType = nativeTargetType.strip_typedefs().unqualified()
|
|
targetType = self.fromNativeType(nativeTargetType)
|
|
return self.createTypedefedType(targetType, str(nativeType),
|
|
self.nativeTypeId(nativeType))
|
|
|
|
if code == gdb.TYPE_CODE_ERROR:
|
|
self.warn('Type error: %s' % nativeType)
|
|
return self.Type(self, '')
|
|
|
|
typeId = self.nativeTypeId(nativeType)
|
|
res = self.typeData.get(typeId, None)
|
|
if res is None:
|
|
tdata = self.TypeData(self)
|
|
tdata.name = str(nativeType)
|
|
tdata.typeId = typeId
|
|
tdata.lbitsize = nativeType.sizeof * 8
|
|
tdata.code = {
|
|
#gdb.TYPE_CODE_TYPEDEF : TypeCode.Typedef, # Handled above.
|
|
gdb.TYPE_CODE_METHOD: TypeCode.Function,
|
|
gdb.TYPE_CODE_VOID: TypeCode.Void,
|
|
gdb.TYPE_CODE_FUNC: TypeCode.Function,
|
|
gdb.TYPE_CODE_METHODPTR: TypeCode.Function,
|
|
gdb.TYPE_CODE_MEMBERPTR: TypeCode.Function,
|
|
#gdb.TYPE_CODE_PTR : TypeCode.Pointer, # Handled above.
|
|
#gdb.TYPE_CODE_REF : TypeCode.Reference, # Handled above.
|
|
gdb.TYPE_CODE_BOOL: TypeCode.Integral,
|
|
gdb.TYPE_CODE_CHAR: TypeCode.Integral,
|
|
gdb.TYPE_CODE_INT: TypeCode.Integral,
|
|
gdb.TYPE_CODE_FLT: TypeCode.Float,
|
|
gdb.TYPE_CODE_ENUM: TypeCode.Enum,
|
|
#gdb.TYPE_CODE_ARRAY : TypeCode.Array,
|
|
gdb.TYPE_CODE_STRUCT: TypeCode.Struct,
|
|
gdb.TYPE_CODE_UNION: TypeCode.Struct,
|
|
gdb.TYPE_CODE_COMPLEX: TypeCode.Complex,
|
|
gdb.TYPE_CODE_STRING: TypeCode.FortranString,
|
|
}[code]
|
|
if tdata.code == TypeCode.Enum:
|
|
tdata.enumDisplay = lambda intval, addr, form: \
|
|
self.nativeTypeEnumDisplay(nativeType, intval, form)
|
|
if tdata.code == TypeCode.Struct:
|
|
tdata.lalignment = lambda: \
|
|
self.nativeStructAlignment(nativeType)
|
|
tdata.lfields = lambda value: \
|
|
self.listMembers(value, nativeType)
|
|
tdata.templateArguments = self.listTemplateParameters(nativeType)
|
|
self.registerType(typeId, tdata) # Fix up fields and template args
|
|
# warn('CREATE TYPE: %s' % typeId)
|
|
#else:
|
|
# warn('REUSE TYPE: %s' % typeId)
|
|
return self.Type(self, typeId)
|
|
|
|
def listTemplateParameters(self, nativeType):
|
|
targs = []
|
|
pos = 0
|
|
while True:
|
|
try:
|
|
targ = nativeType.template_argument(pos)
|
|
except:
|
|
break
|
|
if isinstance(targ, gdb.Type):
|
|
targs.append(self.fromNativeType(targ.unqualified()))
|
|
elif isinstance(targ, gdb.Value):
|
|
targs.append(self.fromNativeValue(targ).value())
|
|
else:
|
|
raise RuntimeError('UNKNOWN TEMPLATE PARAMETER')
|
|
pos += 1
|
|
targs2 = self.listTemplateParametersManually(str(nativeType))
|
|
return targs if len(targs) >= len(targs2) else targs2
|
|
|
|
def nativeTypeEnumDisplay(self, nativeType, intval, form):
|
|
try:
|
|
enumerators = []
|
|
for field in nativeType.fields():
|
|
# If we found an exact match, return it immediately
|
|
if field.enumval == intval:
|
|
return field.name + ' (' + (form % intval) + ')'
|
|
enumerators.append((field.name, field.enumval))
|
|
|
|
# No match was found, try to return as flags
|
|
enumerators.sort(key=lambda x: x[1])
|
|
flags = []
|
|
v = intval
|
|
found = False
|
|
for (name, value) in enumerators:
|
|
if v & value != 0:
|
|
flags.append(name)
|
|
v = v & ~value
|
|
found = True
|
|
if not found or v != 0:
|
|
# Leftover value
|
|
flags.append('unknown: %d' % v)
|
|
return '(' + " | ".join(flags) + ') (' + (form % intval) + ')'
|
|
except:
|
|
pass
|
|
return form % intval
|
|
|
|
def nativeTypeId(self, nativeType):
|
|
if nativeType and (nativeType.code == gdb.TYPE_CODE_TYPEDEF):
|
|
return '%s{%s}' % (nativeType, nativeType.strip_typedefs())
|
|
name = str(nativeType)
|
|
if len(name) == 0:
|
|
c = '0'
|
|
elif name == 'union {...}':
|
|
c = 'u'
|
|
elif name.endswith('{...}'):
|
|
c = 's'
|
|
else:
|
|
return name
|
|
typeId = c + ''.join(['{%s:%s}' % (f.name, self.nativeTypeId(f.type))
|
|
for f in nativeType.fields()])
|
|
return typeId
|
|
|
|
def nativeStructAlignment(self, nativeType):
|
|
#DumperBase.warn('NATIVE ALIGN FOR %s' % nativeType.name)
|
|
def handleItem(nativeFieldType, align):
|
|
a = self.fromNativeType(nativeFieldType).alignment()
|
|
return a if a > align else align
|
|
align = 1
|
|
for f in nativeType.fields():
|
|
align = handleItem(f.type, align)
|
|
return align
|
|
|
|
#except:
|
|
# # Happens in the BoostList dumper for a 'const bool'
|
|
# # item named 'constant_time_size'. There isn't anything we can do
|
|
# # in this case.
|
|
# pass
|
|
|
|
#yield value.extractField(field)
|
|
|
|
def memberFromNativeFieldAndValue(self, nativeField, nativeValue, fieldName, value):
|
|
nativeMember = self.nativeMemberFromField(nativeValue, nativeField)
|
|
if nativeMember is None:
|
|
val = self.Value(self)
|
|
val.name = fieldName
|
|
val.type = self.fromNativeType(nativeField.type)
|
|
val.lIsInScope = False
|
|
return val
|
|
val = self.fromNativeValue(nativeMember)
|
|
nativeFieldType = nativeField.type.unqualified()
|
|
if nativeField.bitsize:
|
|
val.lvalue = int(nativeMember)
|
|
val.laddress = None
|
|
fieldType = self.fromNativeType(nativeFieldType)
|
|
val.type = self.createBitfieldType(fieldType, nativeField.bitsize)
|
|
val.isBaseClass = nativeField.is_base_class
|
|
val.name = fieldName
|
|
return val
|
|
|
|
def nativeMemberFromField(self, nativeValue, nativeField):
|
|
if nativeField.is_base_class:
|
|
return nativeValue.cast(nativeField.type)
|
|
try:
|
|
return nativeValue[nativeField]
|
|
except:
|
|
pass
|
|
try:
|
|
return nativeValue[nativeField.name]
|
|
except:
|
|
pass
|
|
return None
|
|
|
|
def listMembers(self, value, nativeType):
|
|
nativeValue = value.nativeValue
|
|
|
|
anonNumber = 0
|
|
|
|
#DumperBase.warn('LISTING FIELDS FOR %s' % nativeType)
|
|
for nativeField in nativeType.fields():
|
|
fieldName = nativeField.name
|
|
# Something without a name.
|
|
# Anonymous union? We need a dummy name to distinguish
|
|
# multiple anonymous unions in the struct.
|
|
# Since GDB commit b5b08fb4 anonymous structs get also reported
|
|
# with a 'None' name.
|
|
if fieldName is None or len(fieldName) == 0:
|
|
# Something without a name.
|
|
# Anonymous union? We need a dummy name to distinguish
|
|
# multiple anonymous unions in the struct.
|
|
anonNumber += 1
|
|
fieldName = '#%s' % anonNumber
|
|
#DumperBase.warn('FIELD: %s' % fieldName)
|
|
# hasattr(nativeField, 'bitpos') == False indicates a static field,
|
|
# but if we have access to a nativeValue .fromNativeField will
|
|
# also succeed. We essentially skip only static members from
|
|
# artificial values, like array members constructed from address.
|
|
if hasattr(nativeField, 'bitpos') or nativeValue is not None:
|
|
yield self.fromNativeField(nativeField, nativeValue, fieldName)
|
|
|
|
def fromNativeField(self, nativeField, nativeValue, fieldName):
|
|
nativeFieldType = nativeField.type.unqualified()
|
|
#DumperBase.warn(' TYPE: %s' % nativeFieldType)
|
|
#DumperBase.warn(' TYPEID: %s' % self.nativeTypeId(nativeFieldType))
|
|
|
|
if hasattr(nativeField, 'bitpos'):
|
|
bitpos = nativeField.bitpos
|
|
else:
|
|
bitpos = 0
|
|
|
|
if hasattr(nativeField, 'bitsize') and nativeField.bitsize != 0:
|
|
bitsize = nativeField.bitsize
|
|
else:
|
|
bitsize = 8 * nativeFieldType.sizeof
|
|
|
|
fieldType = self.fromNativeType(nativeFieldType)
|
|
if bitsize != nativeFieldType.sizeof * 8:
|
|
fieldType = self.createBitfieldType(fieldType, bitsize)
|
|
else:
|
|
fieldType = fieldType
|
|
|
|
if nativeValue is None:
|
|
extractor = None
|
|
else:
|
|
extractor = lambda value, \
|
|
capturedNativeField = nativeField, \
|
|
capturedNativeValue = nativeValue, \
|
|
capturedFieldName = fieldName: \
|
|
self.memberFromNativeFieldAndValue(capturedNativeField,
|
|
capturedNativeValue,
|
|
capturedFieldName,
|
|
value)
|
|
|
|
#DumperBase.warn("FOUND NATIVE FIELD: %s bitpos: %s" % (fieldName, bitpos))
|
|
return self.Field(dumper=self, name=fieldName, isBase=nativeField.is_base_class,
|
|
bitsize=bitsize, bitpos=bitpos, type=fieldType,
|
|
extractor=extractor)
|
|
|
|
def listLocals(self, partialVar):
|
|
frame = gdb.selected_frame()
|
|
|
|
try:
|
|
block = frame.block()
|
|
#DumperBase.warn('BLOCK: %s ' % block)
|
|
except RuntimeError as error:
|
|
#DumperBase.warn('BLOCK IN FRAME NOT ACCESSIBLE: %s' % error)
|
|
return []
|
|
except:
|
|
self.warn('BLOCK NOT ACCESSIBLE FOR UNKNOWN REASONS')
|
|
return []
|
|
|
|
items = []
|
|
shadowed = {}
|
|
while True:
|
|
if block is None:
|
|
self.warn("UNEXPECTED 'None' BLOCK")
|
|
break
|
|
for symbol in block:
|
|
|
|
# Filter out labels etc.
|
|
if symbol.is_variable or symbol.is_argument:
|
|
name = symbol.print_name
|
|
|
|
if name in ('__in_chrg', '__PRETTY_FUNCTION__'):
|
|
continue
|
|
|
|
if partialVar is not None and partialVar != name:
|
|
continue
|
|
|
|
# 'NotImplementedError: Symbol type not yet supported in
|
|
# Python scripts.'
|
|
#DumperBase.warn('SYMBOL %s (%s, %s)): ' % (symbol, name, symbol.name))
|
|
if self.passExceptions and not self.isTesting:
|
|
nativeValue = frame.read_var(name, block)
|
|
value = self.fromFrameValue(nativeValue)
|
|
value.name = name
|
|
#DumperBase.warn('READ 0: %s' % value.stringify())
|
|
items.append(value)
|
|
continue
|
|
|
|
try:
|
|
# Same as above, but for production.
|
|
nativeValue = frame.read_var(name, block)
|
|
value = self.fromFrameValue(nativeValue)
|
|
value.name = name
|
|
#DumperBase.warn('READ 1: %s' % value.stringify())
|
|
items.append(value)
|
|
continue
|
|
except:
|
|
pass
|
|
|
|
try:
|
|
#DumperBase.warn('READ 2: %s' % item.value)
|
|
value = self.fromFrameValue(frame.read_var(name))
|
|
value.name = name
|
|
items.append(value)
|
|
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:
|
|
#DumperBase.warn('READ 3: %s %s' % (name, item.value))
|
|
#DumperBase.warn('ITEM 3: %s' % item.value)
|
|
value = self.fromFrameValue(gdb.parse_and_eval(name))
|
|
value.name = name
|
|
items.append(value)
|
|
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 block.function is not None:
|
|
break
|
|
|
|
block = block.superblock
|
|
|
|
return items
|
|
|
|
def reportToken(self, args):
|
|
pass
|
|
|
|
# Hack to avoid QDate* dumper timeouts with GDB 7.4 on 32 bit
|
|
# due to misaligned %ebx in SSE calls (qstring.cpp:findChar)
|
|
# This seems to be fixed in 7.9 (or earlier)
|
|
def canCallLocale(self):
|
|
return self.ptrSize() == 8
|
|
|
|
def fetchVariables(self, args):
|
|
self.resetStats()
|
|
self.prepare(args)
|
|
|
|
self.isBigEndian = gdb.execute('show endian', to_string=True).find('big endian') > 0
|
|
self.packCode = '>' if self.isBigEndian else '<'
|
|
|
|
(ok, res) = self.tryFetchInterpreterVariables(args)
|
|
if ok:
|
|
safePrint(res)
|
|
return
|
|
|
|
self.output += 'data=['
|
|
|
|
partialVar = args.get('partialvar', '')
|
|
isPartial = len(partialVar) > 0
|
|
partialName = partialVar.split('.')[1].split('@')[0] if isPartial else None
|
|
|
|
variables = self.listLocals(partialName)
|
|
#DumperBase.warn('VARIABLES: %s' % variables)
|
|
|
|
# Take care of the return value of the last function call.
|
|
if len(self.resultVarName) > 0:
|
|
try:
|
|
value = self.parseAndEvaluate(self.resultVarName)
|
|
value.name = self.resultVarName
|
|
value.iname = 'return.' + self.resultVarName
|
|
variables.append(value)
|
|
except:
|
|
# Don't bother. It's only supplementary information anyway.
|
|
pass
|
|
|
|
self.handleLocals(variables)
|
|
self.handleWatches(args)
|
|
|
|
self.output += '],typeinfo=['
|
|
for name in self.typesToReport.keys():
|
|
typeobj = self.typesToReport[name]
|
|
# Happens e.g. for '(anonymous namespace)::InsertDefOperation'
|
|
#if not typeobj is None:
|
|
# self.output.append('{name="%s",size="%s"}'
|
|
# % (self.hexencode(name), typeobj.sizeof))
|
|
self.output += ']'
|
|
self.typesToReport = {}
|
|
|
|
if self.forceQtNamespace:
|
|
self.qtNamespaceToReport = self.qtNamespace()
|
|
|
|
if self.qtNamespaceToReport:
|
|
self.output += ',qtnamespace="%s"' % self.qtNamespaceToReport
|
|
self.qtNamespaceToReport = None
|
|
|
|
self.output += ',partial="%d"' % isPartial
|
|
self.output += ',counts=%s' % self.counts
|
|
self.output += ',timings=%s' % self.timings
|
|
self.reportResult(self.output)
|
|
|
|
def parseAndEvaluate(self, exp):
|
|
val = self.nativeParseAndEvaluate(exp)
|
|
return None if val is None else self.fromNativeValue(val)
|
|
|
|
def nativeParseAndEvaluate(self, exp):
|
|
#DumperBase.warn('EVALUATE "%s"' % exp)
|
|
try:
|
|
val = gdb.parse_and_eval(exp)
|
|
return val
|
|
except RuntimeError as error:
|
|
if self.passExceptions:
|
|
self.warn("Cannot evaluate '%s': %s" % (exp, error))
|
|
return None
|
|
|
|
def callHelper(self, rettype, value, function, args):
|
|
if self.isWindowsTarget():
|
|
raise Exception("gdb crashes when calling functions on Windows")
|
|
# 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
|
|
|
|
#DumperBase.warn('CALL: %s -> %s(%s)' % (value, function, arg))
|
|
typeName = value.type.name
|
|
if typeName.find(':') >= 0:
|
|
typeName = "'" + typeName + "'"
|
|
# 'class' is needed, see http://sourceware.org/bugzilla/show_bug.cgi?id=11912
|
|
#exp = '((class %s*)%s)->%s(%s)' % (typeName, value.laddress, function, arg)
|
|
addr = value.address()
|
|
if addr is None:
|
|
addr = self.pokeValue(value)
|
|
#DumperBase.warn('PTR: %s -> %s(%s)' % (value, function, addr))
|
|
exp = '((%s*)0x%x)->%s(%s)' % (typeName, addr, function, arg)
|
|
#DumperBase.warn('CALL: %s' % exp)
|
|
result = gdb.parse_and_eval(exp)
|
|
#DumperBase.warn(' -> %s' % result)
|
|
res = self.fromNativeValue(result)
|
|
if value.address() is None:
|
|
self.releaseValue(addr)
|
|
return res
|
|
|
|
def makeExpression(self, value):
|
|
typename = '::' + value.type.name
|
|
#DumperBase.warn(' TYPE: %s' % typename)
|
|
exp = '(*(%s*)(0x%x))' % (typename, value.address())
|
|
#DumperBase.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+$d)))')
|
|
value = gdb.parse_and_eval('$d').dereference()
|
|
return value
|
|
|
|
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.size()
|
|
data = value.data()
|
|
h = self.hexencode(data)
|
|
#DumperBase.warn('DATA: %s' % h)
|
|
string = ''.join('\\x' + h[2 * i:2 * i + 2] for i in range(size))
|
|
exp = '(%s*)memcpy(calloc(%d, 1), "%s", %d)' \
|
|
% (value.type.name, size, string, size)
|
|
#DumperBase.warn('EXP: %s' % exp)
|
|
res = gdb.parse_and_eval(exp)
|
|
#DumperBase.warn('RES: %s' % res)
|
|
return toInteger(res)
|
|
|
|
def releaseValue(self, address):
|
|
gdb.parse_and_eval('free(0x%x)' % address)
|
|
|
|
def setValue(self, address, typename, value):
|
|
cmd = 'set {%s}%s=%s' % (typename, address, value)
|
|
gdb.execute(cmd)
|
|
|
|
def setValues(self, address, typename, values):
|
|
cmd = 'set {%s[%s]}%s={%s}' \
|
|
% (typename, len(values), address, ','.join(map(str, values)))
|
|
gdb.execute(cmd)
|
|
|
|
def selectedInferior(self):
|
|
try:
|
|
# gdb.Inferior is new in gdb 7.2
|
|
self.cachedInferior = gdb.selected_inferior()
|
|
except:
|
|
# Pre gdb 7.4. Right now we don't have more than one inferior anyway.
|
|
self.cachedInferior = gdb.inferiors()[0]
|
|
|
|
# Memoize result.
|
|
self.selectedInferior = lambda: self.cachedInferior
|
|
return self.cachedInferior
|
|
|
|
def readRawMemory(self, address, size):
|
|
#DumperBase.warn('READ: %s FROM 0x%x' % (size, address))
|
|
if address == 0 or size == 0:
|
|
return bytes()
|
|
res = self.selectedInferior().read_memory(address, size)
|
|
return res
|
|
|
|
def findStaticMetaObject(self, type):
|
|
symbolName = type.name + '::staticMetaObject'
|
|
symbol = gdb.lookup_global_symbol(symbolName, gdb.SYMBOL_VAR_DOMAIN)
|
|
if not symbol:
|
|
return 0
|
|
try:
|
|
# Older GDB ~7.4 don't have gdb.Symbol.value()
|
|
return toInteger(symbol.value().address)
|
|
except:
|
|
pass
|
|
|
|
address = gdb.parse_and_eval("&'%s'" % symbolName)
|
|
return toInteger(address)
|
|
|
|
def isArmArchitecture(self):
|
|
return 'arm' in gdb.TARGET_CONFIG.lower()
|
|
|
|
def isQnxTarget(self):
|
|
return 'qnx' in gdb.TARGET_CONFIG.lower()
|
|
|
|
def isWindowsTarget(self):
|
|
# We get i686-w64-mingw32
|
|
return 'mingw' in gdb.TARGET_CONFIG.lower()
|
|
|
|
def isMsvcTarget(self):
|
|
return False
|
|
|
|
def prettySymbolByAddress(self, address):
|
|
try:
|
|
return str(gdb.parse_and_eval('(void(*))0x%x' % address))
|
|
except:
|
|
return '0x%x' % address
|
|
|
|
def qtVersionString(self):
|
|
try:
|
|
return str(gdb.lookup_symbol('qVersion')[0].value()())
|
|
except:
|
|
pass
|
|
try:
|
|
ns = self.qtNamespace()
|
|
return str(gdb.parse_and_eval("((const char*(*)())'%sqVersion')()" % ns))
|
|
except:
|
|
pass
|
|
return None
|
|
|
|
def qtVersion(self):
|
|
try:
|
|
# Only available with Qt 5.3+
|
|
qtversion = int(str(gdb.parse_and_eval('((void**)&qtHookData)[2]')), 16)
|
|
self.qtVersion = lambda: qtversion
|
|
return qtversion
|
|
except:
|
|
pass
|
|
|
|
try:
|
|
version = self.qtVersionString()
|
|
(major, minor, patch) = version[version.find('"') + 1:version.rfind('"')].split('.')
|
|
qtversion = 0x10000 * int(major) + 0x100 * int(minor) + int(patch)
|
|
self.qtVersion = lambda: qtversion
|
|
return qtversion
|
|
except:
|
|
# Use fallback until we have a better answer.
|
|
return self.fallbackQtVersion
|
|
|
|
def createSpecialBreakpoints(self, args):
|
|
self.specialBreakpoints = []
|
|
|
|
def newSpecial(spec):
|
|
# GDB < 8.1 does not have the 'qualified' parameter here,
|
|
# GDB >= 8.1 applies some generous pattern matching, hitting
|
|
# e.g. also Foo::abort() when asking for '::abort'
|
|
class Pre81SpecialBreakpoint(gdb.Breakpoint):
|
|
def __init__(self, spec):
|
|
super(Pre81SpecialBreakpoint, self).__init__(spec,
|
|
gdb.BP_BREAKPOINT, internal=True)
|
|
self.spec = spec
|
|
|
|
def stop(self):
|
|
print("Breakpoint on '%s' hit." % self.spec)
|
|
return True
|
|
|
|
class SpecialBreakpoint(gdb.Breakpoint):
|
|
def __init__(self, spec):
|
|
super(SpecialBreakpoint, self).__init__(spec,
|
|
gdb.BP_BREAKPOINT,
|
|
internal=True,
|
|
qualified=True)
|
|
self.spec = spec
|
|
|
|
def stop(self):
|
|
print("Breakpoint on '%s' hit." % self.spec)
|
|
return True
|
|
|
|
try:
|
|
return SpecialBreakpoint(spec)
|
|
except:
|
|
return Pre81SpecialBreakpoint(spec)
|
|
|
|
# FIXME: ns is accessed too early. gdb.Breakpoint() has no
|
|
# 'rbreak' replacement, and breakpoints created with
|
|
# 'gdb.execute('rbreak...') cannot be made invisible.
|
|
# So let's ignore the existing of namespaced builds for this
|
|
# fringe feature here for now.
|
|
ns = self.qtNamespace()
|
|
if args.get('breakonabort', 0):
|
|
self.specialBreakpoints.append(newSpecial('abort'))
|
|
|
|
if args.get('breakonwarning', 0):
|
|
self.specialBreakpoints.append(newSpecial(ns + 'qWarning'))
|
|
self.specialBreakpoints.append(newSpecial(ns + 'QMessageLogger::warning'))
|
|
|
|
if args.get('breakonfatal', 0):
|
|
self.specialBreakpoints.append(newSpecial(ns + 'qFatal'))
|
|
self.specialBreakpoints.append(newSpecial(ns + 'QMessageLogger::fatal'))
|
|
|
|
#def threadname(self, maximalStackDepth, objectPrivateType):
|
|
# e = gdb.selected_frame()
|
|
# out = ''
|
|
# ns = self.qtNamespace()
|
|
# while True:
|
|
# maximalStackDepth -= 1
|
|
# if maximalStackDepth < 0:
|
|
# break
|
|
# e = e.older()
|
|
# if e == None or e.name() == None:
|
|
# break
|
|
# if e.name() in (ns + 'QThreadPrivate::start', '_ZN14QThreadPrivate5startEPv@4'):
|
|
# try:
|
|
# thrptr = e.read_var('thr').dereference()
|
|
# d_ptr = thrptr['d_ptr']['d'].cast(objectPrivateType).dereference()
|
|
# try:
|
|
# objectName = d_ptr['objectName']
|
|
# except: # Qt 5
|
|
# p = d_ptr['extraData']
|
|
# if not self.isNull(p):
|
|
# objectName = p.dereference()['objectName']
|
|
# if not objectName is None:
|
|
# (data, size, alloc) = self.stringData(objectName)
|
|
# if size > 0:
|
|
# s = self.readMemory(data, 2 * size)
|
|
#
|
|
# thread = gdb.selected_thread()
|
|
# inner = '{valueencoded="uf16:2:0",id="'
|
|
# inner += str(thread.num) + '",value="'
|
|
# inner += s
|
|
# #inner += self.encodeString(objectName)
|
|
# inner += '"},'
|
|
#
|
|
# out += inner
|
|
# except:
|
|
# pass
|
|
# return out
|
|
|
|
def threadnames(self, maximalStackDepth):
|
|
# FIXME: This needs a proper implementation for MinGW, and only there.
|
|
# Linux, Mac and QNX mirror the objectName() to the underlying threads,
|
|
# so we get the names already as part of the -thread-info output.
|
|
return '[]'
|
|
#out = '['
|
|
#oldthread = gdb.selected_thread()
|
|
#if oldthread:
|
|
# try:
|
|
# objectPrivateType = gdb.lookup_type(ns + 'QObjectPrivate').pointer()
|
|
# inferior = self.selectedInferior()
|
|
# for thread in inferior.threads():
|
|
# thread.switch()
|
|
# out += self.threadname(maximalStackDepth, objectPrivateType)
|
|
# except:
|
|
# pass
|
|
# oldthread.switch()
|
|
#return out + ']'
|
|
|
|
def importPlainDumper(self, printer):
|
|
name = printer.name.replace('::', '__')
|
|
self.qqDumpers[name] = PlainDumper(printer)
|
|
self.qqFormats[name] = ''
|
|
|
|
def importPlainDumpers(self):
|
|
for obj in gdb.objfiles():
|
|
for printers in obj.pretty_printers + gdb.pretty_printers:
|
|
for printer in printers.subprinters:
|
|
self.importPlainDumper(printer)
|
|
|
|
def qtNamespace(self):
|
|
# This function is replaced by handleQtCoreLoaded()
|
|
return ''
|
|
|
|
def findSymbol(self, symbolName):
|
|
try:
|
|
return toInteger(gdb.parse_and_eval("(size_t)&'%s'" % symbolName))
|
|
except:
|
|
return 0
|
|
|
|
def handleNewObjectFile(self, objfile):
|
|
name = objfile.filename
|
|
if self.isWindowsTarget():
|
|
qtCoreMatch = re.match(r'.*Qt5?Core[^/.]*d?\.dll', name)
|
|
else:
|
|
qtCoreMatch = re.match(r'.*/libQt5?Core[^/.]*\.so', name)
|
|
|
|
if qtCoreMatch is not None:
|
|
self.addDebugLibs(objfile)
|
|
self.handleQtCoreLoaded(objfile)
|
|
|
|
def addDebugLibs(self, objfile):
|
|
# The directory where separate debug symbols are searched for
|
|
# is "/usr/lib/debug".
|
|
try:
|
|
cooked = gdb.execute('show debug-file-directory', to_string=True)
|
|
clean = cooked.split('"')[1]
|
|
newdir = '/'.join(objfile.filename.split('/')[:-1])
|
|
gdb.execute('set debug-file-directory %s:%s' % (clean, newdir))
|
|
except:
|
|
pass
|
|
|
|
def handleQtCoreLoaded(self, objfile):
|
|
fd, tmppath = tempfile.mkstemp()
|
|
os.close(fd)
|
|
cmd = 'maint print msymbols %s "%s"' % (tmppath, objfile.filename)
|
|
try:
|
|
symbols = gdb.execute(cmd, to_string=True)
|
|
except:
|
|
# command syntax depends on gdb version - below is gdb 8+
|
|
cmd = 'maint print msymbols -objfile "%s" -- %s' % (objfile.filename, tmppath)
|
|
try:
|
|
symbols = gdb.execute(cmd, to_string=True)
|
|
except:
|
|
pass
|
|
ns = ''
|
|
with open(tmppath) as f:
|
|
for line in f:
|
|
if line.find('msgHandlerGrabbed ') >= 0:
|
|
# [11] b 0x7ffff683c000 _ZN4MynsL17msgHandlerGrabbedE
|
|
# section .tbss Myns::msgHandlerGrabbed qlogging.cpp
|
|
ns = re.split(r'_ZN?(\d*)(\w*)L17msgHandlerGrabbedE? ', line)[2]
|
|
if len(ns):
|
|
ns += '::'
|
|
break
|
|
if line.find('currentThreadData ') >= 0:
|
|
# [ 0] b 0x7ffff67d3000 _ZN2UUL17currentThreadDataE
|
|
# section .tbss UU::currentThreadData qthread_unix.cpp\\n
|
|
ns = re.split(r'_ZN?(\d*)(\w*)L17currentThreadDataE? ', line)[2]
|
|
if len(ns):
|
|
ns += '::'
|
|
break
|
|
os.remove(tmppath)
|
|
|
|
lenns = len(ns)
|
|
strns = ('%d%s' % (lenns - 2, ns[:lenns - 2])) if lenns else ''
|
|
|
|
if lenns:
|
|
# This might be wrong, but we can't do better: We found
|
|
# a libQt5Core and could not extract a namespace.
|
|
# The best guess is that there isn't any.
|
|
self.qtNamespaceToReport = ns
|
|
self.qtNamespace = lambda: ns
|
|
|
|
sym = '_ZN%s7QObject11customEventEPNS_6QEventE' % strns
|
|
else:
|
|
sym = '_ZN7QObject11customEventEP6QEvent'
|
|
self.qtCustomEventFunc = self.findSymbol(sym)
|
|
|
|
sym += '@plt'
|
|
self.qtCustomEventPltFunc = self.findSymbol(sym)
|
|
|
|
sym = '_ZNK%s7QObject8propertyEPKc' % strns
|
|
self.qtPropertyFunc = self.findSymbol(sym)
|
|
|
|
def assignValue(self, args):
|
|
typeName = self.hexdecode(args['type'])
|
|
expr = self.hexdecode(args['expr'])
|
|
value = self.hexdecode(args['value'])
|
|
simpleType = int(args['simpleType'])
|
|
ns = self.qtNamespace()
|
|
if typeName.startswith(ns):
|
|
typeName = typeName[len(ns):]
|
|
typeName = typeName.replace('::', '__')
|
|
pos = typeName.find('<')
|
|
if pos != -1:
|
|
typeName = typeName[0:pos]
|
|
if typeName in self.qqEditable and not simpleType:
|
|
#self.qqEditable[typeName](self, expr, value)
|
|
expr = self.parseAndEvaluate(expr)
|
|
self.qqEditable[typeName](self, expr, value)
|
|
else:
|
|
cmd = 'set variable (%s)=%s' % (expr, value)
|
|
gdb.execute(cmd)
|
|
|
|
def appendSolibSearchPath(self, args):
|
|
new = list(map(self.hexdecode, args['path']))
|
|
old = [gdb.parameter('solib-search-path')]
|
|
gdb.execute('set solib-search-path %s' % args['separator'].join(old + new))
|
|
|
|
def watchPoint(self, args):
|
|
self.reportToken(args)
|
|
ns = self.qtNamespace()
|
|
lenns = len(ns)
|
|
strns = ('%d%s' % (lenns - 2, ns[:lenns - 2])) if lenns else ''
|
|
sym = '_ZN%s12QApplication8widgetAtEii' % strns
|
|
expr = '%s(%s,%s)' % (sym, args['x'], args['y'])
|
|
res = self.parseAndEvaluate(expr)
|
|
p = 0 if res is None else res.pointer()
|
|
n = ("'%sQWidget'" % ns) if lenns else 'QWidget'
|
|
self.reportResult('selected="0x%x",expr="(%s*)0x%x"' % (p, n, p), args)
|
|
|
|
def nativeValueDereferencePointer(self, value):
|
|
# This is actually pretty expensive, up to 100ms.
|
|
deref = value.nativeValue.dereference()
|
|
return self.fromNativeValue(deref.cast(deref.dynamic_type))
|
|
|
|
def nativeValueDereferenceReference(self, value):
|
|
nativeValue = value.nativeValue
|
|
return self.fromNativeValue(nativeValue.cast(nativeValue.type.target()))
|
|
|
|
def nativeDynamicTypeName(self, address, baseType):
|
|
# Needed for Gdb13393 test.
|
|
nativeType = self.lookupNativeType(baseType.name)
|
|
if nativeType is None:
|
|
return None
|
|
nativeTypePointer = nativeType.pointer()
|
|
nativeValue = gdb.Value(address).cast(nativeTypePointer).dereference()
|
|
val = nativeValue.cast(nativeValue.dynamic_type)
|
|
return str(val.type)
|
|
#try:
|
|
# vtbl = gdb.execute('info symbol {%s*}0x%x' % (baseType.name, address), to_string = True)
|
|
#except:
|
|
# return None
|
|
#pos1 = vtbl.find('vtable ')
|
|
#if pos1 == -1:
|
|
# return None
|
|
#pos1 += 11
|
|
#pos2 = vtbl.find(' +', pos1)
|
|
#if pos2 == -1:
|
|
# return None
|
|
#return vtbl[pos1 : pos2]
|
|
|
|
def nativeDynamicType(self, address, baseType):
|
|
# Needed for Gdb13393 test.
|
|
nativeType = self.lookupNativeType(baseType.name)
|
|
if nativeType is None:
|
|
return baseType
|
|
nativeTypePointer = nativeType.pointer()
|
|
nativeValue = gdb.Value(address).cast(nativeTypePointer).dereference()
|
|
return self.fromNativeType(nativeValue.dynamic_type)
|
|
|
|
def enumExpression(self, enumType, enumValue):
|
|
return self.qtNamespace() + 'Qt::' + enumValue
|
|
|
|
def lookupNativeType(self, typeName):
|
|
nativeType = self.lookupNativeTypeHelper(typeName)
|
|
if nativeType is not None:
|
|
self.check(isinstance(nativeType, gdb.Type))
|
|
return nativeType
|
|
|
|
def lookupNativeTypeHelper(self, typeName):
|
|
typeobj = self.typeCache.get(typeName)
|
|
#DumperBase.warn('LOOKUP 1: %s -> %s' % (typeName, typeobj))
|
|
if typeobj is not None:
|
|
return typeobj
|
|
|
|
if typeName == 'void':
|
|
typeobj = gdb.lookup_type(typeName)
|
|
self.typeCache[typeName] = typeobj
|
|
self.typesToReport[typeName] = typeobj
|
|
return typeobj
|
|
|
|
#try:
|
|
# typeobj = gdb.parse_and_eval('{%s}&main' % typeName).typeobj
|
|
# if not typeobj is None:
|
|
# self.typeCache[typeName] = typeobj
|
|
# self.typesToReport[typeName] = typeobj
|
|
# return typeobj
|
|
#except:
|
|
# pass
|
|
|
|
# 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 typeName.find('{anonymous}') != -1:
|
|
ts = typeName
|
|
ts = ts.replace('{anonymous}', '(anonymous namespace)')
|
|
typeobj = self.lookupNativeType(ts)
|
|
if typeobj is not None:
|
|
self.typeCache[typeName] = typeobj
|
|
self.typesToReport[typeName] = typeobj
|
|
return typeobj
|
|
|
|
#DumperBase.warn(" RESULT FOR 7.2: '%s': %s" % (typeName, typeobj))
|
|
|
|
# This part should only trigger for
|
|
# gdb 7.1 for types with namespace separators.
|
|
# And anonymous namespaces.
|
|
|
|
ts = typeName
|
|
while True:
|
|
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('*'):
|
|
typeobj = self.lookupNativeType(ts[0:-1])
|
|
if typeobj is not None:
|
|
typeobj = typeobj.pointer()
|
|
self.typeCache[typeName] = typeobj
|
|
self.typesToReport[typeName] = typeobj
|
|
return typeobj
|
|
|
|
try:
|
|
#DumperBase.warn("LOOKING UP 1 '%s'" % ts)
|
|
typeobj = gdb.lookup_type(ts)
|
|
except RuntimeError as error:
|
|
#DumperBase.warn("LOOKING UP 2 '%s' ERROR %s" % (ts, error))
|
|
# See http://sourceware.org/bugzilla/show_bug.cgi?id=11912
|
|
exp = "(class '%s'*)0" % ts
|
|
try:
|
|
typeobj = self.parse_and_eval(exp).type.target()
|
|
#DumperBase.warn("LOOKING UP 3 '%s'" % typeobj)
|
|
except:
|
|
# Can throw 'RuntimeError: No type named class Foo.'
|
|
pass
|
|
except:
|
|
#DumperBase.warn("LOOKING UP '%s' FAILED" % ts)
|
|
pass
|
|
|
|
if typeobj is not None:
|
|
#DumperBase.warn('CACHING: %s' % typeobj)
|
|
self.typeCache[typeName] = typeobj
|
|
self.typesToReport[typeName] = typeobj
|
|
|
|
# This could still be None as gdb.lookup_type('char[3]') generates
|
|
# 'RuntimeError: No type named char[3]'
|
|
#self.typeCache[typeName] = typeobj
|
|
#self.typesToReport[typeName] = typeobj
|
|
return typeobj
|
|
|
|
def doContinue(self):
|
|
gdb.execute('continue')
|
|
|
|
def fetchStack(self, args):
|
|
def fromNativePath(string):
|
|
return string.replace('\\', '/')
|
|
|
|
extraQml = int(args.get('extraqml', '0'))
|
|
limit = int(args['limit'])
|
|
if limit <= 0:
|
|
limit = 10000
|
|
|
|
self.prepare(args)
|
|
self.output = ''
|
|
|
|
i = 0
|
|
if extraQml:
|
|
frame = gdb.newest_frame()
|
|
ns = self.qtNamespace()
|
|
needle = self.qtNamespace() + 'QV4::ExecutionEngine'
|
|
pat = '%sqt_v4StackTraceForEngine((void*)0x%x)'
|
|
done = False
|
|
while i < limit and frame and not done:
|
|
block = None
|
|
try:
|
|
block = frame.block()
|
|
except:
|
|
pass
|
|
if block is not None:
|
|
for symbol in block:
|
|
if symbol.is_variable or symbol.is_argument:
|
|
value = symbol.value(frame)
|
|
typeobj = value.type
|
|
if typeobj.code == gdb.TYPE_CODE_PTR:
|
|
dereftype = typeobj.target().unqualified()
|
|
if dereftype.name == needle:
|
|
addr = toInteger(value)
|
|
expr = pat % (ns, addr)
|
|
res = str(gdb.parse_and_eval(expr))
|
|
pos = res.find('"stack=[')
|
|
if pos != -1:
|
|
res = res[pos + 8:-2]
|
|
res = res.replace('\\\"', '\"')
|
|
res = res.replace('func=', 'function=')
|
|
self.put(res)
|
|
done = True
|
|
break
|
|
frame = frame.older()
|
|
i += 1
|
|
|
|
frame = gdb.newest_frame()
|
|
self.currentCallContext = None
|
|
while i < limit and frame:
|
|
with OutputSaver(self):
|
|
name = frame.name()
|
|
functionName = '??' if name is None else name
|
|
fileName = ''
|
|
objfile = ''
|
|
symtab = ''
|
|
pc = frame.pc()
|
|
sal = frame.find_sal()
|
|
line = -1
|
|
if sal:
|
|
line = sal.line
|
|
symtab = sal.symtab
|
|
if symtab is not None:
|
|
objfile = fromNativePath(symtab.objfile.filename)
|
|
fullname = symtab.fullname()
|
|
if fullname is None:
|
|
fileName = ''
|
|
else:
|
|
fileName = fromNativePath(fullname)
|
|
|
|
if self.nativeMixed and functionName == 'qt_qmlDebugMessageAvailable':
|
|
interpreterStack = self.extractInterpreterStack()
|
|
#print('EXTRACTED INTEPRETER STACK: %s' % interpreterStack)
|
|
for interpreterFrame in interpreterStack.get('frames', []):
|
|
function = interpreterFrame.get('function', '')
|
|
fileName = interpreterFrame.get('file', '')
|
|
language = interpreterFrame.get('language', '')
|
|
lineNumber = interpreterFrame.get('line', 0)
|
|
context = interpreterFrame.get('context', 0)
|
|
|
|
self.put(('frame={function="%s",file="%s",'
|
|
'line="%s",language="%s",context="%s"}')
|
|
% (function, self.hexencode(fileName), lineNumber, language, context))
|
|
|
|
if False and self.isInternalInterpreterFrame(functionName):
|
|
frame = frame.older()
|
|
self.put(('frame={address="0x%x",function="%s",'
|
|
'file="%s",line="%s",'
|
|
'module="%s",language="c",usable="0"}') %
|
|
(pc, functionName, fileName, line, objfile))
|
|
i += 1
|
|
frame = frame.older()
|
|
continue
|
|
|
|
self.put(('frame={level="%s",address="0x%x",function="%s",'
|
|
'file="%s",line="%s",module="%s",language="c"}') %
|
|
(i, pc, functionName, fileName, line, objfile))
|
|
|
|
frame = frame.older()
|
|
i += 1
|
|
self.reportResult('stack={frames=[' + self.output + ']}')
|
|
|
|
def createResolvePendingBreakpointsHookBreakpoint(self, args):
|
|
class Resolver(gdb.Breakpoint):
|
|
def __init__(self, dumper, args):
|
|
self.dumper = dumper
|
|
self.args = args
|
|
spec = 'qt_qmlDebugConnectorOpen'
|
|
super(Resolver, self).\
|
|
__init__(spec, gdb.BP_BREAKPOINT, internal=True, temporary=False)
|
|
|
|
def stop(self):
|
|
self.dumper.resolvePendingInterpreterBreakpoint(args)
|
|
self.enabled = False
|
|
return False
|
|
|
|
self.interpreterBreakpointResolvers.append(Resolver(self, args))
|
|
|
|
def exitGdb(self, _):
|
|
gdb.execute('quit')
|
|
|
|
def reportResult(self, result, args={}):
|
|
print('result={token="%s",%s}' % (args.get("token", 0), result))
|
|
|
|
def profile1(self, args):
|
|
'''Internal profiling'''
|
|
import cProfile
|
|
tempDir = tempfile.gettempdir() + '/bbprof'
|
|
cProfile.run('theDumper.fetchVariables(%s)' % args, tempDir)
|
|
import pstats
|
|
pstats.Stats(tempDir).sort_stats('time').print_stats()
|
|
|
|
def profile2(self, args):
|
|
import timeit
|
|
print(timeit.repeat('theDumper.fetchVariables(%s)' % args,
|
|
'from __main__ import theDumper', number=10))
|
|
|
|
|
|
class CliDumper(Dumper):
|
|
def __init__(self):
|
|
Dumper.__init__(self)
|
|
self.childrenPrefix = '['
|
|
self.chidrenSuffix = '] '
|
|
self.indent = 0
|
|
self.isCli = True
|
|
self.setupDumpers({})
|
|
|
|
def put(self, line):
|
|
if self.output.endswith('\n'):
|
|
self.output = self.output[0:-1]
|
|
self.output += line
|
|
|
|
def putNumChild(self, numchild):
|
|
pass
|
|
|
|
def putOriginalAddress(self, address):
|
|
pass
|
|
|
|
def fetchVariable(self, name):
|
|
args = {}
|
|
args['fancy'] = 1
|
|
args['passexception'] = 1
|
|
args['autoderef'] = 1
|
|
args['qobjectnames'] = 1
|
|
args['varlist'] = name
|
|
self.prepare(args)
|
|
self.output = name + ' = '
|
|
value = self.parseAndEvaluate(name)
|
|
with TopLevelItem(self, name):
|
|
self.putItem(value)
|
|
return self.output
|
|
|
|
|
|
# Global instances.
|
|
theDumper = Dumper()
|
|
theCliDumper = CliDumper()
|
|
|
|
|
|
######################################################################
|
|
#
|
|
# ThreadNames Command
|
|
#
|
|
#######################################################################
|
|
|
|
def threadnames(arg):
|
|
return theDumper.threadnames(int(arg))
|
|
|
|
|
|
registerCommand('threadnames', threadnames)
|
|
|
|
#######################################################################
|
|
#
|
|
# Native Mixed
|
|
#
|
|
#######################################################################
|
|
|
|
|
|
class InterpreterMessageBreakpoint(gdb.Breakpoint):
|
|
def __init__(self):
|
|
spec = 'qt_qmlDebugMessageAvailable'
|
|
super(InterpreterMessageBreakpoint, self).\
|
|
__init__(spec, gdb.BP_BREAKPOINT, internal=True)
|
|
|
|
def stop(self):
|
|
print('Interpreter event received.')
|
|
return theDumper.handleInterpreterMessage()
|
|
|
|
|
|
#######################################################################
|
|
#
|
|
# Shared objects
|
|
#
|
|
#######################################################################
|
|
|
|
def new_objfile_handler(event):
|
|
return theDumper.handleNewObjectFile(event.new_objfile)
|
|
|
|
|
|
gdb.events.new_objfile.connect(new_objfile_handler)
|
|
|
|
|
|
#InterpreterMessageBreakpoint()
|