############################################################################ # # 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. # ############################################################################ import os import copy import struct import sys import base64 import re import time import json import inspect import threading if sys.version_info[0] >= 3: xrange = range toInteger = int else: toInteger = long # Debugger start modes. Keep in sync with DebuggerStartMode in debuggerconstants.h NoStartMode, \ StartInternal, \ StartExternal, \ AttachExternal, \ AttachCrashedExternal, \ AttachCore, \ AttachToRemoteServer, \ AttachToRemoteProcess, \ StartRemoteProcess, \ = range(0, 9) # Known special formats. Keep in sync with DisplayFormat in debuggerprotocol.h AutomaticFormat, \ RawFormat, \ SimpleFormat, \ EnhancedFormat, \ SeparateFormat, \ Latin1StringFormat, \ SeparateLatin1StringFormat, \ Utf8StringFormat, \ SeparateUtf8StringFormat, \ Local8BitStringFormat, \ Utf16StringFormat, \ Ucs4StringFormat, \ Array10Format, \ Array100Format, \ Array1000Format, \ Array10000Format, \ ArrayPlotFormat, \ CompactMapFormat, \ DirectQListStorageFormat, \ IndirectQListStorageFormat, \ = range(0, 20) # Breakpoints. Keep synchronized with BreakpointType in breakpoint.h UnknownType, \ BreakpointByFileAndLine, \ BreakpointByFunction, \ BreakpointByAddress, \ BreakpointAtThrow, \ BreakpointAtCatch, \ BreakpointAtMain, \ BreakpointAtFork, \ BreakpointAtExec, \ BreakpointAtSysCall, \ WatchpointAtAddress, \ WatchpointAtExpression, \ BreakpointOnQmlSignalEmit, \ BreakpointAtJavaScriptThrow, \ = range(0, 14) # Internal codes for types keep in sync with cdbextensions pytype.cpp TypeCodeTypedef, \ TypeCodeStruct, \ TypeCodeVoid, \ TypeCodeIntegral, \ TypeCodeFloat, \ TypeCodeEnum, \ TypeCodePointer, \ TypeCodeArray, \ TypeCodeComplex, \ TypeCodeReference, \ TypeCodeFunction, \ TypeCodeMemberPointer, \ TypeCodeFortranString, \ = range(0, 13) def isIntegralTypeName(name): return name in ('int', 'unsigned int', 'signed int', 'short', 'unsigned short', 'long', 'unsigned long', 'long long', 'unsigned long long', 'char', 'signed char', 'unsigned char', 'bool') def isFloatingPointTypeName(name): return name in ('float', 'double') def arrayForms(): return [ArrayPlotFormat] def mapForms(): return [CompactMapFormat] class ReportItem: """ Helper structure to keep temporary "best" information about a value or a type scheduled to be reported. This might get overridden be subsequent better guesses during a putItem() run. """ def __init__(self, value = None, encoding = None, priority = -100, elided = None): self.value = value self.priority = priority self.encoding = encoding self.elided = elided def __str__(self): return "Item(value: %s, encoding: %s, priority: %s, elided: %s)" \ % (self.value, self.encoding, self.priority, self.elided) def warn(message): print('bridgemessage={msg="%s"},' % message.replace('"', '$').encode("latin1")) def error(message): raise RuntimeError(message) def showException(msg, exType, exValue, exTraceback): warn("**** CAUGHT EXCEPTION: %s ****" % msg) try: import traceback for line in traceback.format_exception(exType, exValue, exTraceback): warn("%s" % line) except: pass class Children: def __init__(self, d, numChild = 1, childType = None, childNumChild = None, maxNumChild = None, addrBase = None, addrStep = None): self.d = d self.numChild = numChild self.childNumChild = childNumChild self.maxNumChild = maxNumChild if childType is None: self.childType = None else: self.childType = childType.name if not self.d.isCli: self.d.put('childtype="%s",' % self.childType) if childNumChild is not None: self.d.put('childnumchild="%s",' % childNumChild) self.childNumChild = childNumChild if addrBase is not None and addrStep is not None: self.d.put('addrbase="0x%x",addrstep="%d",' % (addrBase, addrStep)) def __enter__(self): self.savedChildType = self.d.currentChildType self.savedChildNumChild = self.d.currentChildNumChild self.savedNumChild = self.d.currentNumChild self.savedMaxNumChild = self.d.currentMaxNumChild self.d.currentChildType = self.childType self.d.currentChildNumChild = self.childNumChild self.d.currentNumChild = self.numChild self.d.currentMaxNumChild = self.maxNumChild self.d.put(self.d.childrenPrefix) def __exit__(self, exType, exValue, exTraceBack): if exType is not None: if self.d.passExceptions: showException("CHILDREN", exType, exValue, exTraceBack) self.d.putSpecialValue("notaccessible") self.d.putNumChild(0) if self.d.currentMaxNumChild is not None: if self.d.currentMaxNumChild < self.d.currentNumChild: self.d.put('{name="",value="",type="",numchild="0"},') self.d.currentChildType = self.savedChildType self.d.currentChildNumChild = self.savedChildNumChild self.d.currentNumChild = self.savedNumChild self.d.currentMaxNumChild = self.savedMaxNumChild if self.d.isCli: self.output += '\n' + ' ' * self.indent self.d.put(self.d.childrenSuffix) return True class PairedChildrenData: def __init__(self, d, pairType, keyType, valueType): self.pairType = pairType self.keyType = keyType self.valueType = valueType self.isCompact = d.isMapCompact(self.keyType, self.valueType) self.childType = valueType if self.isCompact else pairType class PairedChildren(Children): def __init__(self, d, numChild, useKeyAndValue = False, pairType = None, keyType = None, valueType = None, maxNumChild = None): self.d = d if keyType is None: keyType = pairType[0].unqualified() if valueType is None: valueType = pairType[1] d.pairData = PairedChildrenData(d, pairType, keyType, valueType) d.pairData.kname = "key" if useKeyAndValue else "first" d.pairData.vname = "value" if useKeyAndValue else "second" Children.__init__(self, d, numChild, d.pairData.childType, maxNumChild = maxNumChild, addrBase = None, addrStep = None) def __enter__(self): self.savedPairData = self.d.pairData if hasattr(self.d, "pairData") else None Children.__enter__(self) def __exit__(self, exType, exValue, exTraceBack): Children.__exit__(self, exType, exValue, exTraceBack) self.d.pairData = self.savedPairData if self.savedPairData else None class SubItem: def __init__(self, d, component): self.d = d self.name = component self.iname = None def __enter__(self): self.d.enterSubItem(self) def __exit__(self, exType, exValue, exTraceBack): return self.d.exitSubItem(self, exType, exValue, exTraceBack) class TopLevelItem(SubItem): def __init__(self, d, iname): self.d = d self.iname = iname self.name = None class UnnamedSubItem(SubItem): def __init__(self, d, component): self.d = d self.iname = "%s.%s" % (self.d.currentIName, component) self.name = None class DumperBase: def __init__(self): self.isCdb = False self.isGdb = False self.isLldb = False self.isCli = False # Later set, or not set: self.stringCutOff = 10000 self.displayStringLimit = 100 self.typesReported = {} self.typesToReport = {} self.qtNamespaceToReport = None self.passExceptions = False self.resetCaches() self.resetStats() self.childrenPrefix = 'children=[' self.childrenSuffix = '],' self.dumpermodules = [ "qttypes", "stdtypes", "misctypes", "boosttypes", "opencvtypes", "creatortypes", "personaltypes", ] # These values are never used, but the variables need to have # some value base for the swapping logic in Children.__enter__() # and Children.__exit__(). self.currentIName = None self.currentValue = None self.currentType = None self.currentNumChild = None self.currentMaxNumChild = None self.currentPrintsAddress = True self.currentChildType = None self.currentChildNumChild = None def setVariableFetchingOptions(self, args): self.resultVarName = args.get('resultvarname', '') self.expandedINames = set(args.get('expanded', [])) self.stringCutOff = int(args.get('stringcutoff', 10000)) self.displayStringLimit = int(args.get('displaystringlimit', 100)) self.typeformats = args.get('typeformats', {}) self.formats = args.get('formats', {}) self.watchers = args.get('watchers', {}) self.useDynamicType = int(args.get('dyntype', '0')) self.useFancy = int(args.get('fancy', '0')) self.forceQtNamespace = int(args.get('forcens', '0')) self.passExceptions = int(args.get('passexceptions', '0')) self.showQObjectNames = int(args.get('qobjectnames', '0')) self.nativeMixed = int(args.get('nativemixed', '0')) self.autoDerefPointers = int(args.get('autoderef', '0')) self.partialVariable = args.get('partialvar', '') self.partialUpdate = int(args.get('partial', '0')) self.fallbackQtVersion = 0x50200 #warn('NAMESPACE: "%s"' % self.qtNamespace()) #warn('EXPANDED INAMES: %s' % self.expandedINames) #warn('WATCHERS: %s' % self.watchers) # The guess does not need to be updated during a fetchVariables() # as the result is fixed during that time (ignoring "active" # dumpers causing loading of shared objects etc). self.currentQtNamespaceGuess = None def resetCaches(self): # This is a cache mapping from 'type name' to 'display alternatives'. self.qqFormats = { "QVariant (QVariantMap)" : mapForms() } # This is a cache of all known dumpers. self.qqDumpers = {} # Direct type match self.qqDumpersEx = {} # Using regexp # This is a cache of all dumpers that support writing. self.qqEditable = {} # This keeps canonical forms of the typenames, without array indices etc. self.cachedFormats = {} # Maps type names to static metaobjects. If a type is known # to not be QObject derived, it contains a 0 value. self.knownStaticMetaObjects = {} self.counts = {} self.structPatternCache = {} self.pretimings = {} self.timings = [] def resetStats(self): # Timing collection self.pretimings = {} self.timings = [] pass def dumpStats(self): msg = [self.counts, self.timings] self.resetStats() return msg def bump(self, key): if key in self.counts: self.counts[key] += 1 else: self.counts[key] = 1 def preping(self, key): import time self.pretimings[key] = time.time() def ping(self, key): import time elapsed = int(1000000 * (time.time() - self.pretimings[key])) self.timings.append([key, elapsed]) def childRange(self): if self.currentMaxNumChild is None: return xrange(0, self.currentNumChild) return xrange(min(self.currentMaxNumChild, self.currentNumChild)) def enterSubItem(self, item): if not item.iname: item.iname = "%s.%s" % (self.currentIName, item.name) if not self.isCli: self.put('{') if isinstance(item.name, str): self.put('name="%s",' % item.name) else: self.indent += 1 self.output += '\n' + ' ' * self.indent if isinstance(item.name, str): self.output += item.name + ' = ' item.savedIName = self.currentIName item.savedValue = self.currentValue item.savedType = self.currentType self.currentIName = item.iname self.currentValue = ReportItem(); self.currentType = ReportItem(); def exitSubItem(self, item, exType, exValue, exTraceBack): #warn("CURRENT VALUE: %s: %s %s" % # (self.currentIName, self.currentValue, self.currentType)) if not exType is None: if self.passExceptions: showException("SUBITEM", exType, exValue, exTraceBack) self.putSpecialValue("notaccessible") self.putNumChild(0) if not self.isCli: try: if self.currentType.value: typeName = self.currentType.value if len(typeName) > 0 and typeName != self.currentChildType: self.put('type="%s",' % typeName) # str(type.GetUnqualifiedType()) ? if self.currentValue.value is None: self.put('value="",encoding="notaccessible",numchild="0",') else: if not self.currentValue.encoding is None: self.put('valueencoded="%s",' % self.currentValue.encoding) if self.currentValue.elided: self.put('valueelided="%s",' % self.currentValue.elided) self.put('value="%s",' % self.currentValue.value) except: pass self.put('},') else: self.indent -= 1 try: if self.currentType.value: typeName = self.currentType.value self.put('<%s> = {' % typeName) if self.currentValue.value is None: self.put('') else: value = self.currentValue.value if self.currentValue.encoding == "latin1": value = self.hexdecode(value) elif self.currentValue.encoding == "utf8": value = self.hexdecode(value) elif self.currentValue.encoding == "utf16": b = bytes.fromhex(value) value = codecs.decode(b, 'utf-16') self.put('"%s"' % value) if self.currentValue.elided: self.put('...') if self.currentType.value: self.put('}') except: pass self.currentIName = item.savedIName self.currentValue = item.savedValue self.currentType = item.savedType return True def stripForFormat(self, typeName): if not isinstance(typeName, str): error("Expected string in stripForFormat(), got %s" % type(typeName)) if typeName in self.cachedFormats: return self.cachedFormats[typeName] stripped = "" inArray = 0 for c in typeName: if c == '<': break if c == ' ': continue if c == '[': inArray += 1 elif c == ']': inArray -= 1 if inArray and ord(c) >= 48 and ord(c) <= 57: continue stripped += c self.cachedFormats[typeName] = stripped return stripped def intType(self): result = self.lookupType('int') self.intType = lambda: result return result def charType(self): result = self.lookupType('char') self.intType = lambda: result return result def ptrSize(self): result = self.lookupType('void*').size() self.ptrSize = lambda: result return result # Hex decoding operating on str, return str. def hexdecode(self, s): if sys.version_info[0] == 2: return s.decode("hex") return bytes.fromhex(s).decode("utf8") # Hex encoding operating on str or bytes, return str. def hexencode(self, s): if s is None: s = '' if sys.version_info[0] == 2: if isinstance(s, buffer): return bytes(s).encode("hex") return s.encode("hex") if isinstance(s, str): s = s.encode("utf8") return base64.b16encode(s).decode("utf8") def isQt3Support(self): # assume no Qt 3 support by default return False # Clamps size to limit. def computeLimit(self, size, limit): if limit == 0: limit = self.displayStringLimit if limit is None or size <= limit: return 0, size return size, limit def vectorDataHelper(self, addr): if self.qtVersion() >= 0x050000: if self.ptrSize() == 4: (ref, size, alloc, offset) = self.split("IIIp", addr) else: (ref, size, alloc, pad, offset) = self.split("IIIIp", addr) alloc = alloc & 0x7ffffff data = addr + offset else: (ref, alloc, size) = self.split("III", addr) data = addr + 16 self.check(0 <= size and size <= alloc and alloc <= 1000 * 1000 * 1000) return data, size, alloc def byteArrayDataHelper(self, addr): if self.qtVersion() >= 0x050000: # QTypedArray: # - QtPrivate::RefCount ref # - int size # - uint alloc : 31, capacityReserved : 1 # - qptrdiff offset (ref, size, alloc, offset) = self.split("IIpp", addr) alloc = alloc & 0x7ffffff data = addr + offset if self.ptrSize() == 4: data = data & 0xffffffff else: data = data & 0xffffffffffffffff elif self.qtVersion() >= 0x040000: # Data: # - QBasicAtomicInt ref; # - int alloc, size; # - [padding] # - char *data; if self.ptrSize() == 4: (ref, alloc, size, data) = self.split("IIIp", addr) else: (ref, alloc, size, pad, data) = self.split("IIIIp", addr) else: # Data: # - QShared count; # - QChar *unicode # - char *ascii # - uint len: 30 (dummy, dummy, dummy, size) = self.split("IIIp", addr) size = self.extractInt(addr + 3 * self.ptrSize()) & 0x3ffffff alloc = size # pretend. data = self.extractPointer(addr + self.ptrSize()) return data, size, alloc # addr is the begin of a QByteArrayData structure def encodeStringHelper(self, addr, limit): # Should not happen, but we get it with LLDB as result # of inferior calls if addr == 0: return 0, "" data, size, alloc = self.byteArrayDataHelper(addr) if alloc != 0: self.check(0 <= size and size <= alloc and alloc <= 100*1000*1000) elided, shown = self.computeLimit(size, limit) return elided, self.readMemory(data, 2 * shown) def encodeByteArrayHelper(self, addr, limit): data, size, alloc = self.byteArrayDataHelper(addr) if alloc != 0: self.check(0 <= size and size <= alloc and alloc <= 100*1000*1000) elided, shown = self.computeLimit(size, limit) return elided, self.readMemory(data, shown) def putCharArrayHelper(self, data, size, charType, displayFormat = AutomaticFormat, makeExpandable = True): charSize = charType.size() bytelen = size * charSize elided, shown = self.computeLimit(bytelen, self.displayStringLimit) mem = self.readMemory(data, shown) if charSize == 1: if displayFormat in (Latin1StringFormat, SeparateLatin1StringFormat): encodingType = "latin1" else: encodingType = "utf8" #childType = "char" elif charSize == 2: encodingType = "utf16" #childType = "short" else: encodingType = "ucs4" #childType = "int" self.putValue(mem, encodingType, elided=elided) if displayFormat in (SeparateLatin1StringFormat, SeparateUtf8StringFormat, SeparateFormat): elided, shown = self.computeLimit(bytelen, 100000) self.putDisplay(encodingType + ':separate', self.readMemory(data, shown)) if makeExpandable: self.putNumChild(size) if self.isExpanded(): with Children(self): for i in range(size): self.putSubItem(size, self.createValue(data + i * charSize, charType)) def readMemory(self, addr, size): return self.hexencode(bytes(self.readRawMemory(addr, size))) def encodeByteArray(self, value, limit = 0): elided, data = self.encodeByteArrayHelper(self.extractPointer(value), limit) return data def byteArrayData(self, value): return self.byteArrayDataHelper(self.extractPointer(value)) def putByteArrayValue(self, value): elided, data = self.encodeByteArrayHelper(self.extractPointer(value), self.displayStringLimit) self.putValue(data, "latin1", elided=elided) def encodeString(self, value, limit = 0): elided, data = self.encodeStringHelper(self.extractPointer(value), limit) return data def encodedUtf16ToUtf8(self, s): return ''.join([chr(int(s[i:i+2], 16)) for i in range(0, len(s), 4)]) def encodeStringUtf8(self, value, limit = 0): return self.encodedUtf16ToUtf8(self.encodeString(value, limit)) def stringData(self, value): return self.byteArrayDataHelper(self.extractPointer(value)) def extractTemplateArgument(self, typename, position): level = 0 skipSpace = False inner = '' for c in typename[typename.find('<') + 1 : -1]: if c == '<': inner += c level += 1 elif c == '>': level -= 1 inner += c elif c == ',': if level == 0: if position == 0: return inner.strip() position -= 1 inner = '' else: inner += c skipSpace = True else: if skipSpace and c == ' ': pass else: inner += c skipSpace = False # Handle local struct definitions like QList inner = inner.strip() p = inner.find(')::') if p > -1: inner = inner[p+3:] return inner def putStringValueByAddress(self, addr): elided, data = self.encodeStringHelper(addr, self.displayStringLimit) self.putValue(data, "utf16", elided=elided) def putStringValue(self, value): elided, data = self.encodeStringHelper(self.extractPointer(value), self.displayStringLimit) self.putValue(data, "utf16", elided=elided) def putPtrItem(self, name, value): with SubItem(self, name): self.putValue("0x%x" % value) self.putType("void*") self.putNumChild(0) def putIntItem(self, name, value): with SubItem(self, name): if isinstance(value, self.Value): self.putValue(value.display()) else: 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) def putPairItem(self, index, pair): (first, second) = pair if isinstance(pair, tuple) else pair.members() with SubItem(self, index): with Children(self): key = self.putSubItem(self.pairData.kname, first) value = self.putSubItem(self.pairData.vname, second) if index is not None: self.put('keyprefix="[%s] ",' % index) self.put('key="%s",' % key.value) if key.encoding is not None: self.put('keyencoded="%s",' % key.encoding) self.putValue(value.value, value.encoding) def putCallItem(self, name, rettype, value, func, *args): with SubItem(self, name): try: result = self.callHelper(rettype, value, func, args) except Exception as error: if self.passExceptions: raise error children = [('error', error)] self.putSpecialValue("notcallable", children=children) else: self.putItem(result) def call(self, rettype, value, func, *args): return self.callHelper(rettype, value, func, args) def putAddress(self, address): if address is not None and not self.isCli: self.put('address="0x%x",' % address) def putPlainChildren(self, value, dumpBase = True): self.putEmptyValue(-99) self.putNumChild(1) if self.isExpanded(): with Children(self): self.putFields(value, dumpBase) def putNamedChildren(self, values, names): self.putEmptyValue(-99) self.putNumChild(1) if self.isExpanded(): with Children(self): for n, v in zip(names, values): self.putSubItem(n, v) def putFields(self, value, dumpBase = True): for field in value.type.fields(): #warn("FIELD: %s" % field) if field.name is not None and field.name.startswith("_vptr."): with SubItem(self, "[vptr]"): # int (**)(void) n = 100 self.putType(" ") self.put('sortgroup="20"') self.putValue(field.name) self.putNumChild(n) if self.isExpanded(): with Children(self): p = value[field.name] for i in xrange(n): if p.dereference().integer() != 0: with SubItem(self, i): self.putItem(p.dereference()) self.putType(" ") p = p + 1 continue if field.isBaseClass and dumpBase: # We cannot use nativeField.name as part of the iname as # it might contain spaces and other strange characters. with UnnamedSubItem(self, "@%d" % (field.baseIndex + 1)): baseValue = value[field] self.put('iname="%s",' % self.currentIName) self.put('name="[%s]",' % field.name) self.put('sortgroup="%s"' % (1000 - field.baseIndex)) self.putAddress(baseValue.address()) self.putItem(baseValue) continue with SubItem(self, field.name): self.putItem(value.extractField(field)) def putMembersItem(self, value, sortorder = 10): with SubItem(self, "[members]"): self.put('sortgroup="%s"' % sortorder) self.putPlainChildren(value) def isMapCompact(self, keyType, valueType): if self.currentItemFormat() == CompactMapFormat: return True return keyType.isSimpleType() and valueType.isSimpleType() def check(self, exp): if not exp: error("Check failed: %s" % exp) def checkRef(self, ref): # Assume there aren't a million references to any object. self.check(ref >= -1) self.check(ref < 1000000) def checkIntType(self, thing): if not self.isInt(thing): error("Expected an integral value, got %s" % type(thing)) def readToFirstZero(self, base, tsize, maximum): self.checkIntType(base) self.checkIntType(tsize) self.checkIntType(maximum) code = (None, "b", "H", None, "I")[tsize] #blob = self.readRawMemory(base, maximum) blob = bytes() while maximum > 1: try: blob = self.readRawMemory(base, maximum) break except: maximum = int(maximum / 2) warn("REDUCING READING MAXIMUM TO %s" % maximum) #warn("BASE: 0x%x TSIZE: %s MAX: %s" % (base, tsize, maximum)) for i in xrange(0, maximum, tsize): t = struct.unpack_from(code, blob, i)[0] if t == 0: return 0, i, self.hexencode(blob[:i]) # Real end is unknown. return -1, maximum, self.hexencode(blob[:maximum]) def encodeCArray(self, p, tsize, limit): elided, shown, blob = self.readToFirstZero(p, tsize, limit) return elided, blob def putItemCount(self, count, maximum = 1000000000): # This needs to override the default value, so don't use 'put' directly. if count > maximum: self.putSpecialValue("minimumitemcount", maximum) else: self.putSpecialValue("itemcount", count) self.putNumChild(count) def resultToMi(self, value): if type(value) is bool: return '"%d"' % int(value) if type(value) is dict: return '{' + ','.join(['%s=%s' % (k, self.resultToMi(v)) for (k, v) in list(value.items())]) + '}' if type(value) is list: return '[' + ','.join([self.resultToMi(k) for k in list(value.items())]) + ']' return '"%s"' % value def variablesToMi(self, value, prefix): if type(value) is bool: return '"%d"' % int(value) if type(value) is dict: pairs = [] for (k, v) in list(value.items()): if k == 'iname': if v.startswith('.'): v = '"%s%s"' % (prefix, v) else: v = '"%s"' % v else: v = self.variablesToMi(v, prefix) pairs.append('%s=%s' % (k, v)) return '{' + ','.join(pairs) + '}' if type(value) is list: index = 0 pairs = [] for item in value: if item.get('type', '') == 'function': continue name = item.get('name', '') if len(name) == 0: name = str(index) index += 1 pairs.append((name, self.variablesToMi(item, prefix))) pairs.sort(key = lambda pair: pair[0]) return '[' + ','.join([pair[1] for pair in pairs]) + ']' return '"%s"' % value def filterPrefix(self, prefix, items): return [i[len(prefix):] for i in items if i.startswith(prefix)] def tryFetchInterpreterVariables(self, args): if not int(args.get('nativemixed', 0)): return (False, '') context = args.get('context', '') if not len(context): return (False, '') expanded = args.get('expanded') args['expanded'] = self.filterPrefix('local', expanded) res = self.sendInterpreterRequest('variables', args) if not res: return (False, '') reslist = [] for item in res.get('variables', {}): if not 'iname' in item: item['iname'] = '.' + item.get('name') reslist.append(self.variablesToMi(item, 'local')) watchers = args.get('watchers', None) if watchers: toevaluate = [] name2expr = {} seq = 0 for watcher in watchers: expr = self.hexdecode(watcher.get('exp')) name = str(seq) toevaluate.append({'name': name, 'expression': expr}) name2expr[name] = expr seq += 1 args['expressions'] = toevaluate args['expanded'] = self.filterPrefix('watch', expanded) del args['watchers'] res = self.sendInterpreterRequest('expressions', args) if res: for item in res.get('expressions', {}): name = item.get('name') iname = 'watch.' + name expr = name2expr.get(name) item['iname'] = iname item['wname'] = self.hexencode(expr) item['exp'] = expr reslist.append(self.variablesToMi(item, 'watch')) return (True, 'data=[%s]' % ','.join(reslist)) def putField(self, name, value): self.put('%s="%s",' % (name, value)) def putType(self, typish, priority = 0): # Higher priority values override lower ones. if priority >= self.currentType.priority: if isinstance(typish, str): self.currentType.value = typish else: self.currentType.value = typish.name self.currentType.priority = priority def putValue(self, value, encoding = None, priority = 0, elided = None): # Higher priority values override lower ones. # elided = 0 indicates all data is available in value, # otherwise it's the true length. if priority >= self.currentValue.priority: self.currentValue = ReportItem(value, encoding, priority, elided) def putSpecialValue(self, encoding, value = "", children = None): self.putValue(value, encoding) if children is not None: self.putNumChild(1) if self.isExpanded(): with Children(self): for name, value in children: with SubItem(self, name): self.putValue(str(value).replace('"', '$')) def putEmptyValue(self, priority = -10): if priority >= self.currentValue.priority: self.currentValue = ReportItem("", None, priority, None) def putName(self, name): self.put('name="%s",' % name) def putBetterType(self, typish): if isinstance(typish, ReportItem): self.currentType.value = typish.value elif isinstance(typish, str): self.currentType.value = typish else: self.currentType.value = typish.name self.currentType.priority += 1 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.value = None def putNamedSubItem(self, component, value, name): with SubItem(self, component): self.putName(name) self.putItem(value) 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 mangleName(self, typeName): return '_ZN%sE' % ''.join(map(lambda x: "%d%s" % (len(x), x), typeName.split('::'))) def putCStyleArray(self, value): arrayType = value.type.unqualified() innerType = arrayType.ltarget if innerType is None: innerType = value.type.target().unqualified() address = value.address() if address: self.putValue("@0x%x" % address, priority = -1) else: self.putEmptyValue() self.putType(arrayType) displayFormat = self.currentItemFormat() arrayByteSize = arrayType.size() if arrayByteSize == 0: # This should not happen. But it does, see QTCREATORBUG-14755. # GDB/GCC produce sizeof == 0 for QProcess arr[3] # And in the Nim string dumper. s = value.type.name itemCount = s[s.find('[')+1:s.find(']')] if not itemCount: itemCount = '100' arrayByteSize = int(itemCount) * innerType.size(); n = int(arrayByteSize / innerType.size()) p = value.address() if displayFormat != RawFormat and p: if innerType.name in ("char", "wchar_t"): self.putCharArrayHelper(p, n, innerType, self.currentItemFormat(), makeExpandable = False) else: self.tryPutSimpleFormattedPointer(p, arrayType, innerType, displayFormat, arrayByteSize) self.putNumChild(n) if self.isExpanded(): self.putArrayData(p, n, innerType) self.putPlotDataHelper(p, n, innerType) def cleanAddress(self, addr): if addr is None: return "" return "0x%x" % toInteger(hex(addr), 16) def stripNamespaceFromType(self, typeName): ns = self.qtNamespace() if len(ns) > 0 and typeName.startswith(ns): typeName = typeName[len(ns):] pos = typeName.find("<") # FIXME: make it recognize foo::bar::iterator? while pos != -1: pos1 = typeName.rfind(">", pos) typeName = typeName[0:pos] + typeName[pos1+1:] pos = typeName.find("<") return typeName def tryPutPrettyItem(self, typeName, value): value.check() if self.useFancy and self.currentItemFormat() != RawFormat: self.putType(typeName) nsStrippedType = self.stripNamespaceFromType(typeName)\ .replace("::", "__") #warn("STRIPPED: %s" % nsStrippedType) # The following block is only needed for D. if nsStrippedType.startswith("_A"): # DMD v2.058 encodes string[] as _Array_uns long long. # With spaces. if nsStrippedType.startswith("_Array_"): qdump_Array(self, value) return True if nsStrippedType.startswith("_AArray_"): qdump_AArray(self, value) return True dumper = self.qqDumpers.get(nsStrippedType) #warn("DUMPER: %s" % dumper) if dumper is not None: dumper(self, value) return True for pattern in self.qqDumpersEx.keys(): dumper = self.qqDumpersEx[pattern] if re.match(pattern, nsStrippedType): dumper(self, value) return True return False def putSimpleCharArray(self, base, size = None): if size is None: elided, shown, data = self.readToFirstZero(base, 1, self.displayStringLimit) else: elided, shown = self.computeLimit(int(size), self.displayStringLimit) data = self.readMemory(base, shown) self.putValue(data, "latin1", elided=elided) def putDisplay(self, editFormat, value): self.put('editformat="%s",' % editFormat) self.put('editvalue="%s",' % value) # This is shared by pointer and array formatting. def tryPutSimpleFormattedPointer(self, ptr, typeName, innerType, displayFormat, limit): if displayFormat == AutomaticFormat: if innerType.name == "char": # Use UTF-8 as default for char *. self.putType(typeName) (elided, shown, data) = self.readToFirstZero(ptr, 1, limit) self.putValue(data, "utf8", elided=elided) if self.isExpanded(): self.putArrayData(ptr, shown, innerType) return True if innerType.name == "wchar_t": self.putType(typeName) charSize = self.lookupType('wchar_t').size() (elided, data) = self.encodeCArray(ptr, charSize, limit) if charSize == 2: self.putValue(data, "utf16", elided=elided) else: self.putValue(data, "ucs4", elided=elided) return True if displayFormat == Latin1StringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 1, limit) self.putValue(data, "latin1", elided=elided) return True if displayFormat == SeparateLatin1StringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 1, limit) self.putValue(data, "latin1", elided=elided) self.putDisplay("latin1:separate", data) return True if displayFormat == Utf8StringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 1, limit) self.putValue(data, "utf8", elided=elided) return True if displayFormat == SeparateUtf8StringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 1, limit) self.putValue(data, "utf8", elided=elided) self.putDisplay("utf8:separate", data) return True if displayFormat == Local8BitStringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 1, limit) self.putValue(data, "local8bit", elided=elided) return True if displayFormat == Utf16StringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 2, limit) self.putValue(data, "utf16", elided=elided) return True if displayFormat == Ucs4StringFormat: self.putType(typeName) (elided, data) = self.encodeCArray(ptr, 4, limit) self.putValue(data, "ucs4", elided=elided) return True return False def putFormattedPointer(self, value): pointer = value.pointer() #warn("POINTER: %s" % pointer) if pointer == 0: #warn("NULL POINTER") self.putType(value.type) self.putValue("0x0") self.putNumChild(0) return typeName = value.type.name self.putAddress(pointer) self.putOriginalAddress(value) try: self.readRawMemory(pointer, 1) except: # Failure to dereference a pointer should at least # show the value of a pointer. #warn("BAD POINTER: %s" % value) self.putValue("0x%x" % pointer) self.putType(typeName) self.putNumChild(0) return displayFormat = self.currentItemFormat(value.type.name) innerType = value.type.target().unqualified() if innerType.name == "void": #warn("VOID POINTER: %s" % displayFormat) self.putType(typeName) self.putValue("0x%x" % pointer) self.putNumChild(0) return if displayFormat == RawFormat: # Explicitly requested bald pointer. #warn("RAW") self.putType(typeName) self.putValue("0x%x" % pointer) if self.currentIName in self.expandedINames: with Children(self): with SubItem(self, '*'): self.putItem(value.dereference()) return limit = self.displayStringLimit if displayFormat in (SeparateLatin1StringFormat, SeparateUtf8StringFormat): limit = 1000000 if self.tryPutSimpleFormattedPointer(pointer, typeName, innerType, displayFormat, limit): self.putNumChild(1) return if Array10Format <= displayFormat and displayFormat <= Array1000Format: n = (10, 100, 1000, 10000)[displayFormat - Array10Format] self.putType(typeName) self.putItemCount(n) self.putArrayData(value.address(), n, innerType) return if innerType.code == TypeCodeFunction: # A function pointer. self.putValue("0x%x" % pointer) self.putType(typeName) self.putNumChild(0) return #warn("AUTODEREF: %s" % self.autoDerefPointers) #warn("INAME: %s" % self.currentIName) #warn("INNER: %s" % innerType.name) if self.autoDerefPointers or self.currentIName.endswith('.this'): # Generic pointer type with AutomaticFormat. # Never dereference char types. if innerType.name not in ("char", "signed char", "unsigned char", "wchar_t"): self.putType(innerType) savedCurrentChildType = self.currentChildType self.currentChildType = innerType.name self.putItem(value.dereference()) self.currentChildType = savedCurrentChildType self.putOriginalAddress(value) return #warn("GENERIC PLAIN POINTER: %s" % value.type) #warn("ADDR PLAIN POINTER: 0x%x" % value.address) self.putType(typeName) self.putValue("0x%x" % pointer) self.putNumChild(1) if self.currentIName in self.expandedINames: with Children(self): with SubItem(self, "*"): self.putItem(value.dereference()) def putOriginalAddress(self, value): if value.address() is not None: self.put('origaddr="0x%x",' % value.address()) def putQObjectNameValue(self, value): try: intSize = 4 ptrSize = self.ptrSize() # dd = value["d_ptr"]["d"] is just behind the vtable. (vtable, dd) = self.split("pp", value) if self.qtVersion() < 0x050000: # Size of QObjectData: 5 pointer + 2 int # - vtable # - QObject *q_ptr; # - QObject *parent; # - QObjectList children; # - uint isWidget : 1; etc.. # - int postedEvents; # - QMetaObject *metaObject; # Offset of objectName in QObjectPrivate: 5 pointer + 2 int # - [QObjectData base] # - QString objectName objectName = self.extractPointer(dd + 5 * ptrSize + 2 * intSize) else: # Size of QObjectData: 5 pointer + 2 int # - vtable # - QObject *q_ptr; # - QObject *parent; # - QObjectList children; # - uint isWidget : 1; etc... # - int postedEvents; # - QDynamicMetaObjectData *metaObject; extra = self.extractPointer(dd + 5 * ptrSize + 2 * intSize) if extra == 0: return False # Offset of objectName in ExtraData: 6 pointer # - QVector userData; only #ifndef QT_NO_USERDATA # - QList propertyNames; # - QList propertyValues; # - QVector runningTimers; # - QList > eventFilters; # - QString objectName objectName = self.extractPointer(extra + 5 * ptrSize) data, size, alloc = self.byteArrayDataHelper(objectName) # Object names are short, and GDB can crash on to big chunks. # Since this here is a convenience feature only, limit it. if size <= 0 or size > 80: return False raw = self.readMemory(data, 2 * size) self.putValue(raw, "utf16", 1) return True except: # warn("NO QOBJECT: %s" % value.type) pass def canBePointer(self, p): if self.ptrSize() == 4: return p > 100000 and (p & 0x3 == 0) else: return p > 100000 and (p & 0x7 == 0) and (p < 0x7fffffffffff) def couldBeQObject(self, objectPtr): try: (vtablePtr, dd) = self.split('pp', objectPtr) except: self.bump("nostruct-1") return False if not self.canBePointer(vtablePtr): self.bump("vtable") return False if not self.canBePointer(dd): self.bump("d_d_ptr") return False try: (dvtablePtr, qptr, parentPtr, childrenDPtr, flags) \ = self.split('ppppI', dd) except: self.bump("nostruct-2") return False #warn("STRUCT DD: %s 0x%x" % (self.currentIName, qptr)) if not self.canBePointer(dvtablePtr): self.bump("dvtable") #warn("DVT: 0x%x" % dvtablePtr) return False # Check d_ptr.d.q_ptr == objectPtr if qptr != objectPtr: #warn("QPTR: 0x%x 0x%x" % (qptr, objectPtr)) self.bump("q_ptr") return False if parentPtr and not self.canBePointer(parentPtr): #warn("PAREN") self.bump("parent") return False if not self.canBePointer(childrenDPtr): #warn("CHILD") self.bump("children") return False #if flags >= 0x80: # Only 7 flags are defined # warn("FLAGS: 0x%x %s" % (flags, self.currentIName)) # self.bump("flags") # return False #warn("OK") #if dynMetaObjectPtr and not self.canBePointer(dynMetaObjectPtr): # self.bump("dynmo") # return False self.bump("couldBeQObject") return True def extractMetaObjectPtr(self, objectPtr, typeobj): """ objectPtr - address of *potential* instance of QObject derived class typeobj - type of *objectPtr if known, None otherwise. """ if objectPtr is not None: self.checkIntType(objectPtr) def extractMetaObjectPtrFromAddress(): return 0 # FIXME: Calling "works" but seems to impact memory contents(!) # in relevant places. One symptom is that object name # contents "vanishes" as the reported size of the string # gets zeroed out(?). # Try vtable, metaObject() is the first entry. vtablePtr = self.extractPointer(objectPtr) metaObjectFunc = self.extractPointer(vtablePtr) cmd = "((void*(*)(void*))0x%x)((void*)0x%x)" % (metaObjectFunc, objectPtr) try: #warn("MO CMD: %s" % cmd) res = self.parseAndEvaluate(cmd) #warn("MO RES: %s" % res) self.bump("successfulMetaObjectCall") return toInteger(res) except: self.bump("failedMetaObjectCall") #warn("COULD NOT EXECUTE: %s" % cmd) return 0 def extractStaticMetaObjectFromTypeHelper(someTypeObj): if someTypeObj.isSimpleType(): return 0 typeName = someTypeObj.name isQObjectProper = typeName == self.qtNamespace() + "QObject" if not isQObjectProper: if someTypeObj.firstBase() is None: return 0 # No templates for now. if typeName.find('<') >= 0: return 0 result = self.findStaticMetaObject(typeName) # We need to distinguish Q_OBJECT from Q_GADGET: # a Q_OBJECT SMO has a non-null superdata (unless it's QObject itself), # a Q_GADGET SMO has a null superdata (hopefully) if result and not isQObjectProper: superdata = self.extractPointer(result) if superdata == 0: # This looks like a Q_GADGET return 0 return result def extractStaticMetaObjectPtrFromType(someTypeObj): if someTypeObj is None: return 0 someTypeName = someTypeObj.name self.bump('metaObjectFromType') known = self.knownStaticMetaObjects.get(someTypeName, None) if known is not None: # Is 0 or the static metaobject. return known result = 0 #try: result = extractStaticMetaObjectFromTypeHelper(someTypeObj) #except RuntimeError as error: # warn("METAOBJECT EXTRACTION FAILED: %s" % error) #except: # warn("METAOBJECT EXTRACTION FAILED FOR UNKNOWN REASON") if not result: base = someTypeObj.firstBase() if base is not None and base != someTypeObj: # sanity check result = extractStaticMetaObjectPtrFromType(base) self.knownStaticMetaObjects[someTypeName] = result return result if not self.useFancy: return 0 ptrSize = self.ptrSize() typeName = typeobj.name result = self.knownStaticMetaObjects.get(typeName, None) if result is not None: # Is 0 or the static metaobject. self.bump("typecached") #warn("CACHED RESULT: %s %s 0x%x" % (self.currentIName, typeName, result)) return result if not self.couldBeQObject(objectPtr): self.bump('cannotBeQObject') #warn("DOES NOT LOOK LIKE A QOBJECT: %s" % self.currentIName) return 0 metaObjectPtr = 0 if not metaObjectPtr: # measured: 3 ms (example had one level of inheritance) self.preping("metaObjectType-" + self.currentIName) metaObjectPtr = extractStaticMetaObjectPtrFromType(typeobj) self.ping("metaObjectType-" + self.currentIName) if not metaObjectPtr: # measured: 200 ms (example had one level of inheritance) self.preping("metaObjectCall-" + self.currentIName) metaObjectPtr = extractMetaObjectPtrFromAddress() self.ping("metaObjectCall-" + self.currentIName) #if metaObjectPtr: # self.bump('foundMetaObject') # self.knownStaticMetaObjects[typeName] = metaObjectPtr return metaObjectPtr def split(self, pattern, value): if isinstance(value, self.Value): return value.split(pattern) if self.isInt(value): val = self.Value(self) val.laddress = value return val.split(pattern) error("CANNOT EXTRACT STRUCT FROM %s" % type(value)) def extractCString(self, addr): result = bytearray() while True: d = self.extractByte(addr) if d == 0: break result.append(d) addr += 1 return result def listChildrenGenerator(self, addr, innerType): base = self.extractPointer(addr) (ref, alloc, begin, end) = self.split('IIII', base) array = base + 16 if self.qtVersion() < 0x50000: array += self.ptrSize() size = end - begin stepSize = self.ptrSize() data = array + begin * stepSize for i in range(size): yield self.createValue(data + i * stepSize, innerType) #yield self.createValue(data + i * stepSize, "void*") def vectorChildrenGenerator(self, addr, innerType): base = self.extractPointer(addr) data, size, alloc = self.vectorDataHelper(base) for i in range(size): yield self.createValue(data + i * innerType.size(), innerType) def putTypedPointer(self, name, addr, typeName): """ Prints a typed pointer, expandable if the type can be resolved, and without children otherwise """ with SubItem(self, name): self.putAddress(addr) self.putValue("@0x%x" % addr) typeObj = self.lookupType(typeName) if typeObj: self.putType(typeObj) self.putNumChild(1) if self.isExpanded(): with Children(self): self.putFields(self.createValue(addr, typeObj)) else: self.putType(typeName) self.putNumChild(0) # This is called is when a QObject derived class is expanded def putQObjectGuts(self, qobject, metaObjectPtr): self.putQObjectGutsHelper(qobject, qobject.address(), -1, metaObjectPtr, "QObject") def metaString(self, metaObjectPtr, index, revision): ptrSize = self.ptrSize() stringdata = self.extractPointer(toInteger(metaObjectPtr) + ptrSize) if revision >= 7: # Qt 5. byteArrayDataSize = 24 if ptrSize == 8 else 16 literal = stringdata + toInteger(index) * byteArrayDataSize ldata, lsize, lalloc = self.byteArrayDataHelper(literal) try: s = struct.unpack_from("%ds" % lsize, self.readRawMemory(ldata, lsize))[0] return s if sys.version_info[0] == 2 else s.decode("utf8") except: return "" else: # Qt 4. ldata = stringdata + index return self.extractCString(ldata).decode("utf8") def putQMetaStuff(self, value, origType): (metaObjectPtr, handle) = value.split('pI') if metaObjectPtr != 0: dataPtr = self.extractPointer(metaObjectPtr + 2 * self.ptrSize()) index = self.extractInt(dataPtr + 4 * handle) revision = 7 if self.qtVersion() >= 0x050000 else 6 name = self.metaString(metaObjectPtr, index, revision) self.putValue(name) self.putNumChild(1) if self.isExpanded(): with Children(self): self.putFields(value) self.putQObjectGutsHelper(0, 0, handle, metaObjectPtr, origType) else: self.putEmptyValue() if self.isExpanded(): with Children(self): self.putFields(value) # basically all meta things go through this here. # qobject and qobjectPtr are non-null if coming from a real structure display # qobject == 0, qobjectPtr != 0 is possible for builds without QObject debug info # if qobject == 0, properties and d-ptr cannot be shown. # handle is what's store in QMetaMethod etc, pass -1 for QObject/QMetaObject # itself metaObjectPtr needs to point to a valid QMetaObject. def putQObjectGutsHelper(self, qobject, qobjectPtr, handle, metaObjectPtr, origType): intSize = 4 ptrSize = self.ptrSize() def putt(name, value, typeName = ' '): with SubItem(self, name): self.putValue(value) self.putType(typeName) self.putNumChild(0) def extractSuperDataPtr(someMetaObjectPtr): #return someMetaObjectPtr['d']['superdata'] return self.extractPointer(someMetaObjectPtr) def extractDataPtr(someMetaObjectPtr): # dataPtr = metaObjectPtr["d"]["data"] return self.extractPointer(someMetaObjectPtr + 2 * ptrSize) isQMetaObject = origType == "QMetaObject" isQObject = origType == "QObject" #warn("OBJECT GUTS: %s 0x%x " % (self.currentIName, metaObjectPtr)) dataPtr = extractDataPtr(metaObjectPtr) #warn("DATA PTRS: %s 0x%x " % (self.currentIName, dataPtr)) (revision, classname, classinfo, classinfo2, methodCount, methods, propertyCount, properties, enumCount, enums, constructorCount, constructors, flags, signalCount) = self.split('I' * 14, dataPtr) largestStringIndex = -1 for i in range(methodCount): t = self.split('IIIII', dataPtr + 56 + i * 20) if largestStringIndex < t[0]: largestStringIndex = t[0] ns = self.qtNamespace() extraData = 0 if qobjectPtr: dd = self.extractPointer(qobjectPtr + ptrSize) if self.qtVersion() >= 0x50000: (dvtablePtr, qptr, parentPtr, childrenDPtr, flags, postedEvents, dynMetaObjectPtr, # Up to here QObjectData. extraData, threadDataPtr, connectionListsPtr, sendersPtr, currentSenderPtr) \ = self.split('ppppIIp' + 'ppppp', dd) else: (dvtablePtr, qptr, parentPtr, childrenDPtr, flags, postedEvents, dynMetaObjectPtr, # Up to here QObjectData objectName, extraData, threadDataPtr, connectionListsPtr, sendersPtr, currentSenderPtr) \ = self.split('ppppIIp' + 'pppppp', dd) if qobjectPtr: qobjectType = self.createType(ns + "QObject") qobjectPtrType = self.createType(ns + "QObject") # FIXME. with SubItem(self, "[parent]"): self.put('sortgroup="9"') self.putItem(self.createValue(dd + 2 * ptrSize, qobjectPtrType)) with SubItem(self, "[children]"): self.put('sortgroup="8"') base = self.extractPointer(dd + 3 * ptrSize) # It's a QList begin = self.extractInt(base + 8) end = self.extractInt(base + 12) array = base + 16 if self.qtVersion() < 0x50000: array += ptrSize self.check(begin >= 0 and end >= 0 and end <= 1000 * 1000 * 1000) size = end - begin self.check(size >= 0) self.putItemCount(size) if self.isExpanded(): addrBase = array + begin * ptrSize with Children(self, size): for i in self.childRange(): with SubItem(self, i): childPtr = self.extractPointer(addrBase + i * ptrSize) self.putItem(self.createValue(childPtr, qobjectType)) if isQMetaObject: with SubItem(self, "[strings]"): self.put('sortgroup="2"') if largestStringIndex > 0: self.putSpecialValue("minimumitemcount", largestStringIndex) self.putNumChild(1) if self.isExpanded(): with Children(self, largestStringIndex + 1): for i in self.childRange(): with SubItem(self, i): s = self.metaString(metaObjectPtr, i, revision) self.putValue(self.hexencode(s), "latin1") self.putNumChild(0) else: self.putValue(" ") self.putNumChild(0) if isQMetaObject: with SubItem(self, "[raw]"): self.put('sortgroup="1"') self.putEmptyValue() self.putNumChild(1) if self.isExpanded(): with Children(self): putt("revision", revision) putt("classname", classname) putt("classinfo", classinfo) putt("methods", "%d %d" % (methodCount, methods)) putt("properties", "%d %d" % (propertyCount, properties)) putt("enums/sets", "%d %d" % (enumCount, enums)) putt("constructors", "%d %d" % (constructorCount, constructors)) putt("flags", flags) putt("signalCount", signalCount) for i in range(methodCount): t = self.split('IIIII', dataPtr + 56 + i * 20) putt("method %d" % i, "%s %s %s %s %s" % t) if isQObject: with SubItem(self, "[extra]"): self.put('sortgroup="1"') self.putEmptyValue() self.putNumChild(1) if self.isExpanded(): with Children(self): if extraData: self.putTypedPointer("[extraData]", extraData, ns + "QObjectPrivate::ExtraData") if connectionListsPtr: self.putTypedPointer("[connectionLists]", connectionListsPtr, ns + "QObjectConnectionListVector") with SubItem(self, "[metaObject]"): self.putAddress(metaObjectPtr) self.putNumChild(1) if self.isExpanded(): with Children(self): self.putQObjectGutsHelper(0, 0, -1, metaObjectPtr, "QMetaObject") if isQMetaObject or isQObject: with SubItem(self, "[properties]"): self.put('sortgroup="5"') if self.isExpanded(): dynamicPropertyCount = 0 with Children(self): # Static properties. for i in range(propertyCount): t = self.split("III", dataPtr + properties * 4 + 12 * i) name = self.metaString(metaObjectPtr, t[0], revision) if qobject: # LLDB doesn't like calling it on a derived class, possibly # due to type information living in a different shared object. base = self.createValue(qobjectPtr, ns + "QObject") self.putCallItem(name, ns + "QVariant", base, "property", '"' + name + '"') else: putt(name, ' ') # Dynamic properties. if extraData: byteArrayType = self.createType("QByteArray") variantType = self.createType("QVariant") if self.qtVersion() >= 0x50600: values = self.vectorChildrenGenerator( extraData + 2 * ptrSize, variantType) elif self.qtVersion() >= 0x50000: values = self.listChildrenGenerator( extraData + 2 * ptrSize, variantType) else: values = self.listChildrenGenerator( extraData + 2 * ptrSize, variantType.pointer()) names = self.listChildrenGenerator( extraData + ptrSize, byteArrayType) for (k, v) in zip(names, values): with SubItem(self, propertyCount + dynamicPropertyCount): self.put('key="%s",' % self.encodeByteArray(k)) self.put('keyencoded="latin1",') self.putItem(v) dynamicPropertyCount += 1 self.putItemCount(propertyCount + dynamicPropertyCount) else: # We need a handle to [x] for the user to expand the item # before we know whether there are actual children. Counting # them is too expensive. self.putSpecialValue("minimumitemcount", propertyCount) self.putNumChild(1) superDataPtr = extractSuperDataPtr(metaObjectPtr) globalOffset = 0 superDataIterator = superDataPtr while superDataIterator: sdata = extractDataPtr(superDataIterator) globalOffset += self.extractInt(sdata + 16) # methodCount member superDataIterator = extractSuperDataPtr(superDataIterator) if isQMetaObject or isQObject: with SubItem(self, "[methods]"): self.put('sortgroup="3"') self.putItemCount(methodCount) if self.isExpanded(): with Children(self): for i in range(methodCount): t = self.split("IIIII", dataPtr + 56 + 20 * i) name = self.metaString(metaObjectPtr, t[0], revision) with SubItem(self, i): self.putValue(name) self.putType(" ") self.putNumChild(1) isSignal = False flags = t[4] if flags == 0x06: typ = "signal" isSignal = True elif flags == 0x0a: typ = "slot" elif flags == 0x0a: typ = "invokable" else: typ = "" with Children(self): putt("[nameindex]", t[0]) putt("[type]", typ) putt("[argc]", t[1]) putt("[parameter]", t[2]) putt("[tag]", t[3]) putt("[flags]", t[4]) putt("[localindex]", str(i)) putt("[globalindex]", str(globalOffset + i)) if isQObject: with SubItem(self, "[d]"): self.putItem(self.createValue(dd, self.qtNamespace() + "QObjectPrivate")) self.put('sortgroup="15"') if isQMetaObject: with SubItem(self, "[superdata]"): self.put('sortgroup="12"') if superDataPtr: self.putType(self.qtNamespace() + "QMetaObject") self.putAddress(superDataPtr) self.putNumChild(1) if self.isExpanded(): with Children(self): self.putQObjectGutsHelper(0, 0, -1, superDataPtr, "QMetaObject") else: self.putType(self.qtNamespace() + "QMetaObject *") self.putValue("0x0") self.putNumChild(0) if handle >= 0: localIndex = int((handle - methods) / 5) with SubItem(self, "[localindex]"): self.put('sortgroup="12"') self.putValue(localIndex) with SubItem(self, "[globalindex]"): self.put('sortgroup="11"') self.putValue(globalOffset + localIndex) #with SubItem(self, "[signals]"): # self.putItemCount(signalCount) # signalNames = metaData(52, -14, 5) # warn("NAMES: %s" % signalNames) # if self.isExpanded(): # with Children(self): # putt("A", "b") # for i in range(signalCount): # k = signalNames[i] # with SubItem(self, k): # self.putEmptyValue() # if dd: # self.putQObjectConnections(dd) def putQObjectConnections(self, dd): with SubItem(self, "[connections]"): ptrSize = self.ptrSize() self.putNoType() ns = self.qtNamespace() privateTypeName = ns + "QObjectPrivate" privateType = self.lookupType(privateTypeName) d_ptr = dd.cast(privateType.pointer()).dereference() connections = d_ptr["connectionLists"] if self.connections.integer() == 0: self.putItemCount(0) else: connections = connections.dereference() connections = connections.cast(connections.type.firstBase()) self.putSpecialValue("minimumitemcount", 0) self.putNumChild(1) if self.isExpanded(): pp = 0 with Children(self): innerType = connections.type[0] # Should check: innerType == ns::QObjectPrivate::ConnectionList base = self.extractPointer(connections) data, size, alloc = self.vectorDataHelper(base) connectionType = self.lookupType(ns + "QObjectPrivate::Connection*") for i in xrange(size): first = self.extractPointer(data + i * 2 * ptrSize) while first: self.putSubItem("%s" % pp, self.createValue(first, connectionType)) first = self.extractPointer(first + 3 * ptrSize) # We need to enforce some upper limit. pp += 1 if pp > 1000: break def currentItemFormat(self, typeName = None): displayFormat = self.formats.get(self.currentIName, AutomaticFormat) if displayFormat == AutomaticFormat: if typeName is None: typeName = self.currentType.value needle = None if typeName is None else self.stripForFormat(typeName) displayFormat = self.typeformats.get(needle, AutomaticFormat) return displayFormat def putSubItem(self, component, value): # -> ReportItem if not isinstance(value, self.Value): error("WRONG VALUE TYPE IN putSubItem: %s" % type(value)) if not isinstance(value.type, self.Type): error("WRONG TYPE TYPE IN putSubItem: %s" % type(value.type)) with SubItem(self, component): self.putItem(value) value = self.currentValue return value # The "short" display. def putArrayData(self, base, n, innerType, childNumChild = None, maxNumChild = 10000): self.checkIntType(base) self.checkIntType(n) addrBase = base innerSize = innerType.size() #warn("ADDRESS: %s INNERSIZE: %s INNERTYPE: %s" % (addrBase, innerSize, innerType)) enc = innerType.simpleEncoding() if enc: self.put('childtype="%s",' % innerType.name) self.put('addrbase="0x%x",' % addrBase) self.put('addrstep="0x%x",' % innerSize) self.put('arrayencoding="%s",' % enc) if n > maxNumChild: self.put('childrenelided="%s",' % n) # FIXME: Act on that in frontend n = maxNumChild self.put('arraydata="') self.put(self.readMemory(addrBase, n * innerSize)) self.put('",') else: with Children(self, n, innerType, childNumChild, maxNumChild, addrBase=addrBase, addrStep=innerSize): for i in self.childRange(): self.putSubItem(i, self.createValue(addrBase + i * innerSize, innerType)) def putArrayItem(self, name, addr, n, typeName): self.checkIntType(addr) self.checkIntType(n) with SubItem(self, name): self.putEmptyValue() self.putType("%s [%d]" % (typeName, n)) self.putArrayData(addr, n, self.lookupType(typeName)) self.putAddress(addr) def putPlotDataHelper(self, base, n, innerType, maxNumChild = 1000*1000): if n > maxNumChild: self.put('plotelided="%s",' % n) # FIXME: Act on that in frontend n = maxNumChild if self.currentItemFormat() == ArrayPlotFormat and innerType.isSimpleType(): enc = innerType.simpleEncoding() if enc: self.putField("editencoding", enc) self.putDisplay("plotdata:separate", self.readMemory(base, n * innerType.size())) def putPlotData(self, base, n, innerType, maxNumChild = 1000*1000): self.putPlotDataHelper(base, n, innerType, maxNumChild=maxNumChild) if self.isExpanded(): self.putArrayData(base, n, innerType, maxNumChild=maxNumChild) def putSpecialArgv(self, value): """ Special handling for char** argv. """ n = 0 p = value # p is 0 for "optimized out" cases. Or contains rubbish. try: if value.integer(): while p.dereference().integer() and n <= 100: p += 1 n += 1 except: pass with TopLevelItem(self, 'local.argv'): self.put('iname="local.argv",name="argv",') self.putItemCount(n, 100) self.putType('char **') if self.currentIName in self.expandedINames: p = value with Children(self, n): for i in xrange(n): self.putSubItem(i, p.dereference()) p += 1 def extractPointer(self, value): code = "I" if self.ptrSize() == 4 else "Q" return self.extractSomething(value, code, 8 * self.ptrSize()) def extractInt64(self, value): return self.extractSomething(value, "q", 64) def extractUInt64(self, value): return self.extractSomething(value, "Q", 64) def extractInt(self, value): return self.extractSomething(value, "i", 32) def extractUInt(self, value): return self.extractSomething(value, "I", 32) def extractShort(self, value): return self.extractSomething(value, "h", 16) def extractUShort(self, value): return self.extractSomething(value, "H", 16) def extractByte(self, value): return self.extractSomething(value, "b", 8) def extractSomething(self, value, pattern, bitsize): if self.isInt(value): val = self.Value(self) val.laddress = value return val.extractSomething(pattern, bitsize) if isinstance(value, self.Value): return value.extractSomething(pattern, bitsize) error("CANT EXTRACT FROM %s" % type(value)) # Parses a..b and a.(s).b def parseRange(self, exp): # Search for the first unbalanced delimiter in s def searchUnbalanced(s, upwards): paran = 0 bracket = 0 if upwards: open_p, close_p, open_b, close_b = '(', ')', '[', ']' else: open_p, close_p, open_b, close_b = ')', '(', ']', '[' for i in range(len(s)): c = s[i] if c == open_p: paran += 1 elif c == open_b: bracket += 1 elif c == close_p: paran -= 1 if paran < 0: return i elif c == close_b: bracket -= 1 if bracket < 0: return i return len(s) match = re.search("(\.)(\(.+?\))?(\.)", exp) if match: s = match.group(2) left_e = match.start(1) left_s = 1 + left_e - searchUnbalanced(exp[left_e::-1], False) right_s = match.end(3) right_e = right_s + searchUnbalanced(exp[right_s:], True) template = exp[:left_s] + '%s' + exp[right_e:] a = exp[left_s:left_e] b = exp[right_s:right_e] try: # Allow integral expressions. ss = self.parseAndEvaluate(s[1:len(s)-1]).integer() if s else 1 aa = self.parseAndEvaluate(a).integer() bb = self.parseAndEvaluate(b).integer() if aa < bb and ss > 0: return True, aa, ss, bb + 1, template except: pass return False, 0, 1, 1, exp def putNumChild(self, numchild): if numchild != self.currentChildNumChild: self.put('numchild="%s",' % numchild) def handleLocals(self, variables): #warn("VARIABLES: %s" % variables) self.preping("locals") shadowed = {} for value in variables: self.anonNumber = 0 if value.name == "argv" and value.type.name == "char **": self.putSpecialArgv(value) else: name = value.name if name in shadowed: level = shadowed[name] shadowed[name] = level + 1 name += "@%d" % level else: shadowed[name] = 1 # A "normal" local variable or parameter. iname = value.iname if hasattr(value, 'iname') else 'local.' + name with TopLevelItem(self, iname): self.preping("all-" + iname) self.put('iname="%s",name="%s",' % (iname, name)) self.putItem(value) self.ping("all-" + iname) self.ping("locals") def handleWatches(self, args): self.preping("watches") for watcher in args.get("watchers", []): iname = watcher['iname'] exp = self.hexdecode(watcher['exp']) self.handleWatch(exp, exp, iname) self.ping("watches") def handleWatch(self, origexp, exp, iname): exp = str(exp).strip() escapedExp = self.hexencode(exp) #warn("HANDLING WATCH %s -> %s, INAME: '%s'" % (origexp, exp, iname)) # Grouped items separated by semicolon if exp.find(";") >= 0: exps = exp.split(';') n = len(exps) with TopLevelItem(self, iname): self.put('iname="%s",' % iname) #self.put('wname="%s",' % escapedExp) self.put('name="%s",' % exp) self.put('exp="%s",' % exp) self.putItemCount(n) self.putNoType() for i in xrange(n): self.handleWatch(exps[i], exps[i], "%s.%d" % (iname, i)) return # Special array index: e.g a[1..199] or a[1.(3).199] for stride 3. isRange, begin, step, end, template = self.parseRange(exp) if isRange: #warn("RANGE: %s %s %s in %s" % (begin, step, end, template)) r = range(begin, end, step) n = len(r) with TopLevelItem(self, iname): self.put('iname="%s",' % iname) #self.put('wname="%s",' % escapedExp) self.put('name="%s",' % exp) self.put('exp="%s",' % exp) self.putItemCount(n) self.putNoType() with Children(self, n): for i in r: e = template % i self.handleWatch(e, e, "%s.%s" % (iname, i)) return # Fall back to less special syntax #return self.handleWatch(origexp, exp, iname) with TopLevelItem(self, iname): self.put('iname="%s",' % iname) self.put('wname="%s",' % escapedExp) try: value = self.parseAndEvaluate(exp) self.putItem(value) except Exception: self.currentType.value = " " self.currentValue.value = "" self.currentChildNumChild = -1 self.currentNumChild = 0 self.putNumChild(0) def registerDumper(self, funcname, function): try: if funcname.startswith("qdump__"): typename = funcname[7:] spec = inspect.getargspec(function) if len(spec.args) == 2: self.qqDumpers[typename] = function elif len(spec.args) == 3 and len(spec.defaults) == 1: self.qqDumpersEx[spec.defaults[0]] = function self.qqFormats[typename] = self.qqFormats.get(typename, []) elif funcname.startswith("qform__"): typename = funcname[7:] try: self.qqFormats[typename] = function() except: self.qqFormats[typename] = [] elif funcname.startswith("qedit__"): typename = funcname[7:] try: self.qqEditable[typename] = function except: pass except: pass def setupDumpers(self, _ = {}): self.resetCaches() for mod in self.dumpermodules: m = __import__(mod) dic = m.__dict__ for name in dic.keys(): item = dic[name] self.registerDumper(name, item) msg = "dumpers=[" for key, value in self.qqFormats.items(): editable = ',editable="true"' if key in self.qqEditable else '' formats = (',formats=\"%s\"' % str(value)[1:-1]) if len(value) else '' msg += '{type="%s"%s%s},' % (key, editable, formats) msg += '],' v = 10000 * sys.version_info[0] + 100 * sys.version_info[1] + sys.version_info[2] msg += 'python="%d"' % v return msg def reloadDumpers(self, args): for mod in self.dumpermodules: m = sys.modules[mod] if sys.version_info[0] >= 3: import importlib importlib.reload(m) else: reload(m) self.setupDumpers(args) def loadDumpers(self, args): msg = self.setupDumpers() self.reportResult(msg, args) def addDumperModule(self, args): path = args['path'] (head, tail) = os.path.split(path) sys.path.insert(1, head) self.dumpermodules.append(os.path.splitext(tail)[0]) def extractQStringFromQDataStream(self, buf, offset): """ Read a QString from the stream """ size = struct.unpack_from("!I", buf, offset)[0] offset += 4 string = buf[offset:offset + size].decode('utf-16be') return (string, offset + size) def extractQByteArrayFromQDataStream(self, buf, offset): """ Read a QByteArray from the stream """ size = struct.unpack_from("!I", buf, offset)[0] offset += 4 string = buf[offset:offset + size].decode('latin1') return (string, offset + size) def extractIntFromQDataStream(self, buf, offset): """ Read an int from the stream """ value = struct.unpack_from("!I", buf, offset)[0] return (value, offset + 4) def handleInterpreterMessage(self): """ Return True if inferior stopped """ resdict = self.fetchInterpreterResult() return resdict.get('event') == 'break' def reportInterpreterResult(self, resdict, args): print('interpreterresult=%s,token="%s"' % (self.resultToMi(resdict), args.get('token', -1))) def reportInterpreterAsync(self, resdict, asyncclass): print('interpreterasync=%s,asyncclass="%s"' % (self.resultToMi(resdict), asyncclass)) def removeInterpreterBreakpoint(self, args): res = self.sendInterpreterRequest('removebreakpoint', { 'id' : args['id'] }) return res def insertInterpreterBreakpoint(self, args): args['condition'] = self.hexdecode(args.get('condition', '')) # Will fail if the service is not yet up and running. response = self.sendInterpreterRequest('setbreakpoint', args) resdict = args.copy() bp = None if response is None else response.get("breakpoint", None) if bp: resdict['number'] = bp resdict['pending'] = 0 else: self.createResolvePendingBreakpointsHookBreakpoint(args) resdict['number'] = -1 resdict['pending'] = 1 resdict['warning'] = 'Direct interpreter breakpoint insertion failed.' self.reportInterpreterResult(resdict, args) def resolvePendingInterpreterBreakpoint(self, args): self.parseAndEvaluate('qt_qmlDebugEnableService("NativeQmlDebugger")') response = self.sendInterpreterRequest('setbreakpoint', args) bp = None if response is None else response.get("breakpoint", None) resdict = args.copy() if bp: resdict['number'] = bp resdict['pending'] = 0 else: resdict['number'] = -1 resdict['pending'] = 0 resdict['error'] = 'Pending interpreter breakpoint insertion failed.' self.reportInterpreterAsync(resdict, 'breakpointmodified') def fetchInterpreterResult(self): buf = self.parseAndEvaluate("qt_qmlDebugMessageBuffer") size = self.parseAndEvaluate("qt_qmlDebugMessageLength") msg = self.hexdecode(self.readMemory(buf, size)) # msg is a sequence of 'servicenamemsglenmsg' items. resdict = {} # Native payload. while len(msg): pos0 = msg.index(' ') # End of service name pos1 = msg.index(' ', pos0 + 1) # End of message length service = msg[0:pos0] msglen = int(msg[pos0+1:pos1]) msgend = pos1+1+msglen payload = msg[pos1+1:msgend] msg = msg[msgend:] if service == 'NativeQmlDebugger': try: resdict = json.loads(payload) continue except: warn("Cannot parse native payload: %s" % payload) else: print('interpreteralien=%s' % {'service': service, 'payload': self.hexencode(payload)}) try: expr = 'qt_qmlDebugClearBuffer()' res = self.parseAndEvaluate(expr) except RuntimeError as error: warn("Cleaning buffer failed: %s: %s" % (expr, error)) return resdict def sendInterpreterRequest(self, command, args = {}): encoded = json.dumps({ 'command': command, 'arguments': args }) hexdata = self.hexencode(encoded) expr = 'qt_qmlDebugSendDataToService("NativeQmlDebugger","%s")' % hexdata try: res = self.parseAndEvaluate(expr) except RuntimeError as error: warn("Interpreter command failed: %s: %s" % (encoded, error)) return {} except AttributeError as error: # Happens with LLDB and 'None' current thread. warn("Interpreter command failed: %s: %s" % (encoded, error)) return {} if not res: warn("Interpreter command failed: %s " % encoded) return {} return self.fetchInterpreterResult() def executeStep(self, args): if self.nativeMixed: response = self.sendInterpreterRequest('stepin', args) self.doContinue() def executeStepOut(self, args): if self.nativeMixed: response = self.sendInterpreterRequest('stepout', args) self.doContinue() def executeNext(self, args): if self.nativeMixed: response = self.sendInterpreterRequest('stepover', args) self.doContinue() def executeContinue(self, args): if self.nativeMixed: response = self.sendInterpreterRequest('continue', args) self.doContinue() def doInsertInterpreterBreakpoint(self, args, wasPending): #warn("DO INSERT INTERPRETER BREAKPOINT, WAS PENDING: %s" % wasPending) # Will fail if the service is not yet up and running. response = self.sendInterpreterRequest('setbreakpoint', args) bp = None if response is None else response.get("breakpoint", None) if wasPending: if not bp: self.reportInterpreterResult({'bpnr': -1, 'pending': 1, 'error': 'Pending interpreter breakpoint insertion failed.'}, args) return else: if not bp: self.reportInterpreterResult({'bpnr': -1, 'pending': 1, 'warning': 'Direct interpreter breakpoint insertion failed.'}, args) self.createResolvePendingBreakpointsHookBreakpoint(args) return self.reportInterpreterResult({'bpnr': bp, 'pending': 0}, args) def isInternalInterpreterFrame(self, functionName): if functionName is None: return False if functionName.startswith("qt_v4"): return True return functionName.startswith(self.qtNamespace() + "QV4::") # Hack to avoid QDate* dumper timeouts with GDB 7.4 on 32 bit # due to misaligned %ebx in SSE calls (qstring.cpp:findChar) def canCallLocale(self): return True def isReportableInterpreterFrame(self, functionName): return functionName and functionName.find("QV4::Moth::VME::exec") >= 0 def extractInterpreterStack(self): return self.sendInterpreterRequest('backtrace', {'limit': 10 }) def isInt(self, thing): if isinstance(thing, int): return True if sys.version_info[0] == 2: if isinstance(thing, long): return True return False def putItem(self, value): #warn("ITEM: %s" % value.stringify()) typeobj = value.type #unqualified() typeName = typeobj.name self.addToCache(typeobj) # Fill type cache self.putAddress(value.address()) if not value.lIsInScope: self.putSpecialValue("optimizedout") #self.putType(typeobj) #self.putSpecialValue('outofscope') self.putNumChild(0) return if not isinstance(value, self.Value): error("WRONG TYPE IN putItem: %s" % type(self.Value)) # Try on possibly typedefed type first. if self.tryPutPrettyItem(typeName, value): return if typeobj.code == TypeCodeTypedef: strippedType = typeobj.stripTypedefs() self.putItem(value.cast(strippedType)) if value.lbitsize is not None and value.lbitsize != value.type.size() * 8: typeName += " : %s" % value.lbitsize self.putBetterType(typeName) return if typeobj.code == TypeCodePointer: self.putFormattedPointer(value) return if typeobj.code == TypeCodeFunction: self.putType(typeobj) self.putValue(value) self.putNumChild(0) return if typeobj.code == TypeCodeEnum: #warn("ENUM VALUE: %s" % value.stringify()) self.putType(typeobj.name) self.putValue(value.display()) self.putNumChild(0) return if typeobj.code == TypeCodeArray: #warn("ARRAY VALUE: %s" % value) self.putCStyleArray(value) return if typeobj.code == TypeCodeIntegral: #warn("INTEGER: %s %s" % (value.name, value)) self.putValue(value.value()) self.putNumChild(0) if value.lbitsize is not None and value.lbitsize != value.type.size() * 8: typeName += " : %s" % value.lbitsize self.putType(typeName) return if typeobj.code == TypeCodeFloat: #warn("FLOAT VALUE: %s" % value) self.putValue(value.value()) self.putNumChild(0) self.putType(typeobj.name) return if typeobj.code == TypeCodeReference: if self.isLldb: item = value.cast(typeobj.target().pointer()).dereference() else: item = value.cast(typeobj.target().unqualified()) self.putItem(item) self.putBetterType(typeobj.name) return if typeobj.code == TypeCodeComplex: self.putType(typeobj) self.putValue(value.display()) self.putNumChild(0) return if typeobj.code == TypeCodeFortranString: data = self.value.data() self.putValue(data, "latin1", 1) self.putType(typeobj) if typeName.endswith("[]"): # D arrays, gdc compiled. n = value["length"] base = value["ptr"] self.putType(typeName) self.putItemCount(n) if self.isExpanded(): self.putArrayData(base.pointer(), n, base.type.target()) return #warn("SOME VALUE: %s" % value) #warn("HAS CHILDREN VALUE: %s" % value.hasChildren()) #warn("GENERIC STRUCT: %s" % typeobj) #warn("INAME: %s " % self.currentIName) #warn("INAMES: %s " % self.expandedINames) #warn("EXPANDED: %s " % (self.currentIName in self.expandedINames)) self.putType(typeName) self.putNumChild(1) self.putEmptyValue() #warn("STRUCT GUTS: %s ADDRESS: %s " % (value.name, value.address())) #metaObjectPtr = self.extractMetaObjectPtr(value.address(), value.type) if self.showQObjectNames: self.preping(self.currentIName) metaObjectPtr = self.extractMetaObjectPtr(value.address(), value.type) self.ping(self.currentIName) if metaObjectPtr: self.context = value self.putQObjectNameValue(value) #warn("STRUCT GUTS: %s MO: 0x%x " % (self.currentIName, metaObjectPtr)) if self.isExpanded(): self.put('sortable="1"') with Children(self, 1, childType=None): self.putFields(value) if not self.showQObjectNames: metaObjectPtr = self.extractMetaObjectPtr(value.address(), value.type) if metaObjectPtr: self.putQObjectGuts(value, metaObjectPtr) def symbolAddress(self, symbolName): return self.parseAndEvaluate("(size_t)&" + symbolName).pointer() def qtTypeInfoVersion(self): addr = self.symbolAddress("qtHookData") if addr: # Only available with Qt 5.3+ (hookVersion, x, x, x, x, x, tiVersion) = self.split('ppppppp', addr) #warn("HOOK: %s TI: %s" % (hookVersion, tiVersion)) if hookVersion >= 3: self.qtTypeInfoVersion = lambda: tiVersion return tiVersion return None def lookupType(self, typestring): return self.fromNativeType(self.lookupNativeType(typestring)) def addToCache(self, typeobj): typename = typeobj.name if typename in self.typesReported: return self.typesReported[typename] = True self.typesToReport[typename] = typeobj class Value: def __init__(self, dumper): self.dumper = dumper self.name = None self.type = None self.ldata = None self.laddress = None self.lIsInScope = True self.ldisplay = None self.lbitsize = None def check(self): if self.laddress is not None and not self.dumper.isInt(self.laddress): error("INCONSISTENT ADDRESS: %s" % type(self.laddress)) if self.type is not None and not isinstance(self.type, self.dumper.Type): error("INCONSISTENT TYPE: %s" % type(self.type)) def __str__(self): #error("Not implemented") return self.stringify() def __int__(self): return self.integer() def stringify(self): addr = "None" if self.laddress is None else ("0x%x" % self.laddress) return "Value(name='%s',type=%s,bsize=%s,data=%s,address=%s)" \ % (self.name, self.type.name, self.lbitsize, self.dumper.hexencode(self.ldata), addr) def display(self): if self.type.code == TypeCodeEnum: return self.type.enumDisplay(self.extractInteger(self.type.bitsize(), False)) simple = self.value() if simple is not None: return str(simple) if self.ldisplay is not None: return self.ldisplay #if self.ldata is not None: # if sys.version_info[0] == 2 and isinstance(self.ldata, buffer): # return bytes(self.ldata).encode("hex") # return self.ldata.encode("hex") if self.laddress is not None: return "value of type %s at address 0x%x" % (self.type.name, self.laddress) return "" def integer(self): unsigned = self.type.stripTypedefs().name.startswith("unsigned") bitsize = self.type.bitsize() return self.extractInteger(bitsize, unsigned) def floatingPoint(self): if self.type.size() == 8: return self.extractSomething('d', 64) if self.type.size() == 4: return self.extractSomething('f', 32) error("BAD FLOAT DATA: %s SIZE: %s" % (self, self.type.size())) def pointer(self): return self.extractInteger(8 * self.dumper.ptrSize(), True) def value(self): if self.type is not None: if self.type.code == TypeCodeIntegral: return self.integer() if self.type.code == TypeCodeFloat: return self.floatingPoint() if self.type.code == TypeCodeTypedef: return self.cast(self.type.stripTypedefs()).value() if self.type.stripTypedefs().code == TypeCodePointer: return self.pointer() return None def extractPointer(self): return self.split('p')[0] def __getitem__(self, index): #warn("GET ITEM %s %s" % (self, index)) self.check() if self.type.code == TypeCodeTypedef: #warn("GET ITEM %s STRIP TYPEDEFS TO %s" % (self, self.type.stripTypedefs())) return self.cast(self.type.stripTypedefs()).__getitem__(index) if isinstance(index, str): if self.type.code == TypeCodePointer: #warn("GET ITEM %s DEREFERENCE TO %s" % (self, self.dereference())) return self.dereference().__getitem__(index) field = self.dumper.Field(self.dumper) field.parentType = self.type field.name = index elif isinstance(index, self.dumper.Field): field = index elif self.dumper.isInt(index): return self.members()[index] else: error("BAD INDEX TYPE %s" % type(index)) field.check() #warn("EXTRACT FIELD: %s, BASE 0x%x" % (field, self.address())) if self.type.code == TypeCodePointer: #warn("IS TYPEDEFED POINTER!") res = self.dereference() #warn("WAS POINTER: %s" % res) return res.extractField(field) return self.extractField(field) def extractField(self, field): if self.type.code == TypeCodeTypedef: return self.cast(self.type.stripTypedefs()).extractField(field) if not isinstance(field, self.dumper.Field): error("BAD INDEX TYPE %s" % type(field)) #warn("FIELD: %s " % field) fieldBitsize = field.bitsize() fieldSize = None if fieldBitsize is None else fieldBitsize >> 3 fieldBitpos = field.bitpos() fieldOffset = fieldBitpos >> 3 fieldBitpos -= fieldOffset * 8 fieldType = field.fieldType() val = self.dumper.Value(self.dumper) val.name = field.name if self.laddress is not None: val.laddress = self.laddress + fieldOffset elif self.ldata is not None: val.ldata = self.ldata[fieldOffset:fieldOffset + fieldSize] else: self.dumper.check(False) if fieldBitsize is not None and fieldBitsize != fieldType.size() * 8: data = val.extractInteger(fieldBitsize, True) data = data >> fieldBitpos data = data & ((1 << fieldBitsize) - 1) val.laddress = None val.ldata = bytes(struct.pack('Q', data)) val.type = None if val.laddress is not None and fieldType is not None: if fieldType.code in (TypeCodePointer, TypeCodeReference): baseType = fieldType.dereference() address = self.dumper.extractPointer(val.laddress) dynTypeName = self.dumper.dynamicTypeName(baseType, address) if dynTypeName is not None: if fieldType.code == TypeCodePointer: val.type = self.dumper.createType(dynTypeName + '*') else: val.type = self.dumper.createType(dynTypeName + ' &') if val.type is None: val.type = fieldType #warn("GOT VAL %s FOR FIELD %s" % (val, field)) val.check() val.lbitsize = fieldBitsize return val def members(self): members = [] for field in self.type.fields(): if not field.isBaseClass: members.append(self.extractField(field)) return members def __add__(self, other): self.check() if self.dumper.isInt(other): stripped = self.type.stripTypedefs() if stripped.code == TypeCodePointer: address = self.pointer() + stripped.dereference().size() val = self.dumper.Value(self.dumper) val.laddress = None val.ldata = bytes(struct.pack('Q', address)) val.type = self.type return val error("BAD DATA TO ADD TO: %s %s" % (self.type, other)) def dereference(self): self.check() val = self.dumper.Value(self.dumper) val.type = self.type.dereference() val.laddress = self.pointer() dynTypeName = self.dumper.dynamicTypeName(val.type, val.laddress) if dynTypeName is not None: val.type = self.dumper.createType(dynTypeName) return val def extend(self, size): if self.type.size() < size: val = self.dumper.Value(self.dumper) val.laddress = None if sys.version_info[0] == 3: val.ldata = self.ldata + bytes('\0' * (size - self.type.size()), encoding='latin1') else: val.ldata = self.ldata + bytes('\0' * (size - self.type.size())) return val if self.type.size() == size: return self error("NOT IMPLEMENTED") def cast(self, typish): self.check() val = self.dumper.Value(self.dumper) val.laddress = self.laddress val.lbitsize = self.lbitsize val.ldata = self.ldata val.type = self.dumper.createType(typish) return val def downcast(self): self.check() return self def address(self): self.check() return self.laddress def data(self, size = None): self.check() if self.ldata is not None: if len(self.ldata) > 0: if size is None: return self.ldata if size == len(self.ldata): return self.ldata if size < len(self.ldata): return self.ldata[:size] if self.laddress is not None: if size is None: size = self.type.size() res = self.dumper.readRawMemory(self.laddress, size) if len(res) > 0: return res error("CANNOT CONVERT TO BYTES: %s" % self) def extractInteger(self, bitsize, unsigned): self.check() if bitsize > 32: size = 8 code = "Q" if unsigned else "q" elif bitsize > 16: size = 4 code = "I" if unsigned else "i" elif bitsize > 8: size = 2 code = "H" if unsigned else "h" else: size = 1 code = "B" if unsigned else "b" rawBytes = self.data(size) try: return struct.unpack_from(code, rawBytes, 0)[0] except: pass error("Cannot extract: Code: %s Bytes: %s Bitsize: %s Size: %s" % (code, self.dumper.hexencode(rawBytes), bitsize, size)) def extractSomething(self, code, bitsize): self.check() size = (bitsize + 7) >> 3 rawBytes = self.data(size) return struct.unpack_from(code, rawBytes, 0)[0] def to(self, pattern): return self.split(pattern)[0] def split(self, pattern): #warn("EXTRACT STRUCT FROM: %s" % self.type) (pp, size, fields) = self.dumper.describeStruct(pattern) #warn("SIZE: %s " % size) result = struct.unpack_from(pp, self.data(size)) def structFixer(field, thing): #warn("STRUCT MEMBER: %s" % type(thing)) if field.isStruct: if field.ltype != field.fieldType(): error("DO NOT SIMPLIFY") #warn("FIELD POS: %s" % field.ltype) #warn("FIELD TYE: %s" % field.fieldType()) res = self.dumper.createValue(thing, field.fieldType()) #warn("RES TYPE: %s" % res.type) if self.laddress is not None: res.laddress = self.laddress + field.offset() return res return thing if len(fields) != len(result): error("STRUCT ERROR: %s %s" (fields, result)) return tuple(map(structFixer, fields, result)) def checkPointer(self, p, align = 1): ptr = p if self.isInt(p) else p.pointer() self.readRawMemory(ptr, 1) def dynamicTypeName(self, baseType, address): if baseType.code != TypeCodeStruct: return None try: vtbl = self.extractPointer(address) except: return None #warn("VTBL: 0x%x" % vtbl) if not self.canBePointer(vtbl): return None return self.nativeDynamicTypeName(address, baseType) class Type: def __init__(self, dumper): self.dumper = dumper self.name = None self.nativeType = None self.lfields = None self.lbitsize = None self.lbitpos = None self.ltarget = None # Inner type for arrays self.templateArguments = None self.code = None def __str__(self): self.check() error("Not implemented") return self.name #error("Not implemented") def stringify(self): return "Type(name='%s',bsize=%s,bpos=%s,code=%s,ntype=%s)" \ % (self.name, self.lbitsize, self.lbitpos, self.code, self.nativeType) def __getitem__(self, index): if self.dumper.isInt(index): return self.templateArgument(index) error("CANNOT INDEX TYPE") def check(self): if self.name is None: error("TYPE WITHOUT NAME") def dereference(self): self.check() if self.nativeType is not None: return self.dumper.nativeTypeDereference(self.nativeType) error("DONT KNOW HOW TO DEREF: %s" % self.name) def unqualified(self): if self.nativeType is not None: return self.dumper.nativeTypeUnqualified(self.nativeType) return self def templateArgument(self, position, numeric = False): if self.templateArguments is not None: return self.templateArguments[position] nativeType = self.nativeType #warn("NATIVE TYPE 0: %s" % dir(nativeType)) if nativeType is None: nativeType = self.dumper.lookupNativeType(self.name) #warn("NATIVE TYPE 1: %s" % dir(nativeType)) if nativeType is not None: return self.dumper.nativeTypeTemplateArgument(nativeType, position, numeric) res = self.dumper.extractTemplateArgument(self.name, position) #warn("TEMPLATE ARG: RES: %s" % res) if numeric: return int(res) return self.dumper.createType(res) def simpleEncoding(self): res = { 'bool' : 'int:1', 'char' : 'int:1', 'signed char' : 'int:1', 'unsigned char' : 'uint:1', 'short' : 'int:2', 'unsigned short' : 'uint:2', 'int' : 'int:4', 'unsigned int' : 'uint:4', 'long long' : 'int:8', 'unsigned long long' : 'uint:8', 'float': 'float:4', 'double': 'float:8' }.get(self.name, None) return res def isSimpleType(self): return self.code in (TypeCodeIntegral, TypeCodeFloat, TypeCodeEnum) def alignment(self): if self.isSimpleType(): if self.name == 'double': return self.dumper.ptrSize() # Crude approximation. return self.size() if self.code == TypeCodePointer: return self.dumper.ptrSize() fields = self.fields() align = 1 for field in fields: a = field.fieldType().alignment() #warn(" SUBFIELD: %s ALIGN: %s" % (field.name, a)) if a is not None and a > align: align = a #warn("COMPUTED ALIGNMENT: %s " % align) return align def pointer(self): if self.nativeType is not None: return self.dumper.nativeTypePointer(self.nativeType) error("Cannot create pointer type for %s" % self) def splitArrayType(self): # -> (inner type, count) if not self.code == TypeCodeArray: error("Not an array") s = self.name pos1 = s.rfind('[') pos2 = s.find(']', pos1) itemCount = s[pos1+1:pos2] return (self.dumper.createType(s[0:pos1].strip()), int(s[pos1+1:pos2])) def target(self): if self.nativeType is not None: target = self.dumper.nativeTypeTarget(self.nativeType) #warn("DEREFERENCING: %s -> %s " % (self.nativeType, target)) if target is not None: return target if self.code == TypeCodeArray: (innerType, itemCount) = self.splitArrayType() #warn("EXTRACTING ARRAY TYPE: %s -> %s" % (self, innerType)) # HACK for LLDB 320: if innerType.code is None and innerType.name.endswith(']'): innerType.code = TypeCodeArray return innerType strippedType = self.stripTypedefs() if strippedType.name != self.name: return strippedType.target() error("DONT KNOW TARGET FOR: %s" % self) def fields(self): #warn("GETTING FIELDS FOR: %s" % self.name) if self.lfields is not None: warn("USING LFIELDS: %s" % self.lfields) return self.lfields nativeType = self.nativeType if nativeType is None: nativeType = self.dumper.lookupNativeType(self.name) #warn("FIELDS LOOKING UP NATIVE TYPE FOR %s -> %s" % (self.name, nativeType)) if nativeType is not None: #warn("FIELDS USING NATIVE TYPE %s" % nativeType) fields = self.dumper.nativeTypeFields(nativeType) #warn("FIELDS RES: %s FOR %s" % (fields, nativeType)) return fields error("DONT KNOW FIELDS FOR: %s" % self.stringify()) return [] def firstBase(self): if self.nativeType is not None: return self.dumper.nativeTypeFirstBase(self.nativeType) return None def field(self, name, bitoffset = 0): #warn("GETTING FIELD %s FOR: %s" % (name, self.name)) for f in self.fields(): #warn("EXAMINING MEMBER %s" % f.name) if f.name == name: ff = copy.copy(f) if ff.lbitpos is None: ff.lbitpos = bitoffset else: ff.lbitpos += bitoffset #warn("FOUND: %s" % ff) return ff if f.isBaseClass: #warn("EXAMINING BASE %s" % f.ltype) res = f.ltype.field(name, bitoffset + f.bitpos()) if res is not None: return res #warn("FIELD %s NOT FOUND IN %s" % (name, self)) return None def stripTypedefs(self): if self.code != TypeCodeTypedef: #warn("NO TYPEDEF: %s" % self) return self if self.nativeType is not None: res = self.dumper.nativeTypeStripTypedefs(self.nativeType) #warn("STRIP TYPEDEF: %s -> %s" % (self, res)) return res error("DONT KNOW HOW TO STRIP TYPEDEFS FROM %s" % s) def size(self): bs = self.bitsize() if bs % 8 != 0: warn("ODD SIZE: %s" % self) return (7 + bs) >> 3 def bitsize(self): if self.lbitsize is not None: return self.lbitsize if self.code == TypeCodeArray: (innerType, itemCount) = self.splitArrayType() return itemCount * innerType.bitsize() error("DONT KNOW SIZE: %s" % self.name) def isMovableType(self): if self.code in (TypeCodePointer, TypeCodeIntegral, TypeCodeFloat): return True strippedName = self.dumper.stripNamespaceFromType(self.name) if strippedName in ( "QBrush", "QBitArray", "QByteArray", "QCustomTypeInfo", "QChar", "QDate", "QDateTime", "QFileInfo", "QFixed", "QFixedPoint", "QFixedSize", "QHashDummyValue", "QIcon", "QImage", "QLine", "QLineF", "QLatin1Char", "QLocale", "QMatrix", "QModelIndex", "QPoint", "QPointF", "QPen", "QPersistentModelIndex", "QResourceRoot", "QRect", "QRectF", "QRegExp", "QSize", "QSizeF", "QString", "QTime", "QTextBlock", "QUrl", "QVariant", "QXmlStreamAttribute", "QXmlStreamNamespaceDeclaration", "QXmlStreamNotationDeclaration", "QXmlStreamEntityDeclaration" ): return True return strippedName == "QStringList" and self.dumper.qtVersion() >= 0x050000 def enumDisplay(self, intval): if self.nativeType is not None: return self.dumper.nativeTypeEnumDisplay(self.nativeType, intval) return "%d" % intval class Field: def __init__(self, dumper): self.dumper = dumper self.name = None self.baseIndex = None # Base class index if parent is structure self.nativeIndex = None # Backend-defined index value self.isBaseClass = False self.isVirtualBase = False self.ltype = None self.parentType = None self.lbitsize = None self.lbitpos = None self.isStruct = False def __str__(self): return ("Field(name='%s',ltype=%s,parentType=%s,bpos=%s,bsize=%s," + "bidx=%s,nidx=%s)") \ % (self.name, None if self.ltype is None else self.ltype.name, None if self.parentType is None else self.parentType.name, self.lbitpos, self.lbitsize, self.baseIndex, self.nativeIndex) def check(self): if self.parentType.code == TypeCodePointer: error("POINTER NOT POSSIBLE AS FIELD PARENT") if self.parentType.code == TypeCodeTypedef: error("TYPEDEFS NOT ALLOWED AS FIELD PARENT") def size(self): return self.bitsize() >> 3 def offset(self): return self.bitpos() >> 3 def bitsize(self): self.check() if self.lbitsize is not None: return self.lbitsize fieldType = self.fieldType() # FIXME: enforce return value != None. if fieldType is not None: return fieldType.bitsize() return None def bitpos(self): if self.lbitpos is not None: #warn("BITPOS KNOWN: %s %s" % (self.name, self.lbitpos)) return self.lbitpos self.check() f = self.parentType.field(self.name) if f is not None: #warn("BITPOS FROM PARENT: %s" % self.parentType) return f.bitpos() error("DONT KNOW BITPOS FOR FIELD: %s " % self) def fieldType(self): if self.ltype is not None: return self.ltype if self.name is not None: field = self.parentType.field(self.name) if field is not None: return field.fieldType() #error("CANT GET FIELD TYPE FOR %s" % self) return None def createType(self, typish, size = None): if isinstance(typish, self.Type): typish.check() return typish if isinstance(typish, str): if typish[0] == 'Q': if typish in ("QByteArray", "QString", "QList", "QStringList", "QStringDataPtr"): typish = self.qtNamespace() + typish size = self.ptrSize() elif typish == "QImage": typish = self.qtNamespace() + typish size = 2 * self.ptrSize() elif typish == "QVariant": typish = self.qtNamespace() + typish size = 8 + self.ptrSize() elif typish in ("QPointF", "QDateTime", "QRect"): typish = self.qtNamespace() + typish size = 16 elif typish == "QPoint": typish = self.qtNamespace() + typish size = 8 elif typish == "QChar": typish = self.qtNamespace() + typish size = 2 elif typish in ("quint32", "qint32"): typish = self.qtNamespace() + typish size = 4 #typeobj = self.Type(self) #typeobj.name = typish nativeType = self.lookupNativeType(typish) # FIXME: Remove? #warn("FOUND NAT TYPE: %s" % dir(nativeType)) if nativeType is not None: #warn("USE FROM NATIVE") typeobj = self.fromNativeType(nativeType) else: #warn("FAKING") typeobj = self.Type(self) typeobj.name = typish if size is not None: typeobj.lbitsize = 8 * size #warn("CREATE TYPE: %s" % typeobj) typeobj.check() return typeobj error("NEED TYPE, NOT %s" % type(typish)) def createValue(self, datish, typish): val = self.Value(self) val.type = self.createType(typish) if self.isInt(datish): # Used as address. val.laddress = datish #warn("CREATING %s AT 0x%x" % (val.type.name, address)) elif isinstance(datish, bytes): val.ldata = datish val.type.lbitsize = 8 * len(datish) #warn("CREATING %s WITH DATA %s" % (val.type.name, self.hexencode(datish))) else: error("EXPECTING ADDRESS OR BYTES, GOT %s" % type(datish)) val.check() return val def createListItem(self, data, innerTypish): innerType = self.createType(innerTypish) typeobj = self.Type(self) typeobj.name = self.qtNamespace() + "QList<%s>" % innerType.name typeobj.templateArguments = [innerType] typeobj.lbitsize = 8 * self.ptrSize() val = self.Value(self) val.ldata = data val.type = typeobj return val def createVectorItem(self, data, innerTypish): innerType = self.createType(innerTypish) typeobj = self.Type(self) typeobj.name = self.qtNamespace() + "QVector<%s>" % innerType.name typeobj.templateArguments = [innerType] typeobj.lbitsize = 8 * self.ptrSize() val = self.Value(self) val.ldata = data val.type = typeobj return val class StructBuilder: def __init__(self, dumper): self.dumper = dumper self.pattern = "" self.currentBitsize = 0 self.fields = [] self.autoPadNext = False def fieldAlignment(self, fieldSize, fieldType): if fieldType is not None: align = self.dumper.createType(fieldType).alignment() #warn("COMPUTED ALIGNMENT FOR %s: %s" % (fieldType, align)) if align is not None: return align if fieldSize <= 8: align = (0, 1, 2, 4, 4, 8, 8, 8, 8)[fieldSize] #warn("GUESSED ALIGNMENT FROM SIZE: %s" % align) return align #warn("GUESSED ALIGNMENT: %s" % 8) return 8 def addField(self, fieldSize, fieldCode = None, fieldIsStruct = False, fieldName = None, fieldType = None): if fieldType is not None: fieldType = self.dumper.createType(fieldType) if fieldSize is None and fieldType is not None: fieldSize = fieldType.size() if fieldCode is None: fieldCode = "%ss" % fieldSize if self.autoPadNext: align = self.fieldAlignment(fieldSize, fieldType) self.currentBitsize = 8 * ((self.currentBitsize + 7) >> 3) # Fill up byte. padding = (align - (self.currentBitsize >> 3)) % align #warn("AUTO PADDING AT %s BITS BY %s BYTES" % (self.currentBitsize, padding)) field = self.dumper.Field(self.dumper) field.code = None #field.lbitpos = self.currentBitsize #field.lbitsize = padding * 8 self.pattern += "%ds" % padding self.currentBitsize += padding * 8 self.fields.append(field) self.autoPadNext = False field = self.dumper.Field(self.dumper) field.name = fieldName field.ltype = fieldType field.code = fieldCode field.isStruct = fieldIsStruct field.lbitpos = self.currentBitsize field.lbitsize = fieldSize * 8 self.pattern += fieldCode self.currentBitsize += fieldSize * 8 self.fields.append(field) def describeStruct(self, pattern): if pattern in self.structPatternCache: return self.structPatternCache[pattern] ptrSize = self.ptrSize() builder = self.StructBuilder(self) n = None typeName = "" readingTypeName = False for c in pattern: if readingTypeName: if c == '}': readingTypeName = False builder.addField(n, fieldIsStruct = True, fieldType = typeName) typeName = None n = None else: typeName += c elif c == 'p': # Pointer as int builder.addField(ptrSize, 'Q' if ptrSize == 8 else 'I') elif c == 'P': # Pointer as Value builder.addField(ptrSize, '%ss' % ptrSize) elif c in ('q', 'Q', 'd'): builder.addField(8, c) elif c in ('i', 'I', 'f'): builder.addField(4, c) elif c in ('h', 'H'): builder.addField(2, c) elif c in ('b', 'B', 'c'): builder.addField(1, c) elif c >= '0' and c <= '9': if n is None: n = "" n += c elif c == 's': builder.addField(int(n)) n = None elif c == '{': readingTypeName = True typeName = "" elif c == '@': if n is None: # Automatic padding depending on next item builder.autoPadNext = True else: # Explicit padding. builder.currentBitsize = 8 * ((builder.currentBitsize + 7) >> 3) padding = (int(n) - (builder.currentBitsize >> 3)) % int(n) field = self.Field(self) field.code = None builder.pattern += "%ds" % padding builder.currentBitsize += padding * 8 builder.fields.append(field) n = None else: error("UNKNOWN STRUCT CODE: %s" % c) pp = builder.pattern size = (builder.currentBitsize + 7) >> 3 # FIXME: Tail padding missing. fields = builder.fields self.structPatternCache[pattern] = (pp, size, fields) #warn("PP: %s -> %s %s %s" % (pattern, pp, size, fields)) return (pp, size, fields)