diff options
Diffstat (limited to 'lldb/examples/summaries/cocoa/NSNumber.py')
| -rw-r--r-- | lldb/examples/summaries/cocoa/NSNumber.py | 430 |
1 files changed, 232 insertions, 198 deletions
diff --git a/lldb/examples/summaries/cocoa/NSNumber.py b/lldb/examples/summaries/cocoa/NSNumber.py index 7edd338..3225ea95 100644 --- a/lldb/examples/summaries/cocoa/NSNumber.py +++ b/lldb/examples/summaries/cocoa/NSNumber.py @@ -23,213 +23,247 @@ statistics.add_metric('code_notrun') # despite the similary to synthetic children providers, these classes are not # trying to provide anything but the port number of an NSNumber, so they need not # obey the interface specification for synthetic children providers + + class NSTaggedNumber_SummaryProvider: - def adjust_for_architecture(self): - pass - - def __init__(self, valobj, info_bits, data, params): - logger = lldb.formatters.Logger.Logger() - self.valobj = valobj; - self.sys_params = params - self.info_bits = info_bits - self.data = data - self.update(); - - def update(self): - logger = lldb.formatters.Logger.Logger() - self.adjust_for_architecture(); - - def value(self): - logger = lldb.formatters.Logger.Logger() - # in spite of the plenty of types made available by the public NSNumber API - # only a bunch of these are actually used in the internal implementation - # unfortunately, the original type information appears to be lost - # so we try to at least recover the proper magnitude of the data - if self.info_bits == 0: - return '(char)' + str(ord(ctypes.c_char(chr(self.data % 256)).value)) - if self.info_bits == 4: - return '(short)' + str(ctypes.c_short(self.data % (256*256)).value) - if self.info_bits == 8: - return '(int)' + str(ctypes.c_int(self.data % (256*256*256*256)).value) - if self.info_bits == 12: - return '(long)' + str(ctypes.c_long(self.data).value) - else: - return 'unexpected value:(info=' + str(self.info_bits) + ", value = " + str(self.data) + ')' + + def adjust_for_architecture(self): + pass + + def __init__(self, valobj, info_bits, data, params): + logger = lldb.formatters.Logger.Logger() + self.valobj = valobj + self.sys_params = params + self.info_bits = info_bits + self.data = data + self.update() + + def update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() + + def value(self): + logger = lldb.formatters.Logger.Logger() + # in spite of the plenty of types made available by the public NSNumber API + # only a bunch of these are actually used in the internal implementation + # unfortunately, the original type information appears to be lost + # so we try to at least recover the proper magnitude of the data + if self.info_bits == 0: + return '(char)' + \ + str(ord(ctypes.c_char(chr(self.data % 256)).value)) + if self.info_bits == 4: + return '(short)' + \ + str(ctypes.c_short(self.data % (256 * 256)).value) + if self.info_bits == 8: + return '(int)' + str(ctypes.c_int(self.data % + (256 * 256 * 256 * 256)).value) + if self.info_bits == 12: + return '(long)' + str(ctypes.c_long(self.data).value) + else: + return 'unexpected value:(info=' + str(self.info_bits) + \ + ", value = " + str(self.data) + ')' class NSUntaggedNumber_SummaryProvider: - def adjust_for_architecture(self): - pass - - def __init__(self, valobj, params): - logger = lldb.formatters.Logger.Logger() - self.valobj = valobj; - self.sys_params = params - if not(self.sys_params.types_cache.char): - self.sys_params.types_cache.char = self.valobj.GetType().GetBasicType(lldb.eBasicTypeChar) - if not(self.sys_params.types_cache.short): - self.sys_params.types_cache.short = self.valobj.GetType().GetBasicType(lldb.eBasicTypeShort) - if not(self.sys_params.types_cache.ushort): - self.sys_params.types_cache.ushort = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedShort) - if not(self.sys_params.types_cache.int): - self.sys_params.types_cache.int = self.valobj.GetType().GetBasicType(lldb.eBasicTypeInt) - if not(self.sys_params.types_cache.long): - self.sys_params.types_cache.long = self.valobj.GetType().GetBasicType(lldb.eBasicTypeLong) - if not(self.sys_params.types_cache.ulong): - self.sys_params.types_cache.ulong = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedLong) - if not(self.sys_params.types_cache.longlong): - self.sys_params.types_cache.longlong = self.valobj.GetType().GetBasicType(lldb.eBasicTypeLongLong) - if not(self.sys_params.types_cache.ulonglong): - self.sys_params.types_cache.ulonglong = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedLongLong) - if not(self.sys_params.types_cache.float): - self.sys_params.types_cache.float = self.valobj.GetType().GetBasicType(lldb.eBasicTypeFloat) - if not(self.sys_params.types_cache.double): - self.sys_params.types_cache.double = self.valobj.GetType().GetBasicType(lldb.eBasicTypeDouble) - self.update(); - - def update(self): - logger = lldb.formatters.Logger.Logger() - self.adjust_for_architecture(); - - def value(self): - logger = lldb.formatters.Logger.Logger() - global statistics - # we need to skip the ISA, then the next byte tells us what to read - # we then skip one other full pointer worth of data and then fetch the contents - # if we are fetching an int64 value, one more pointer must be skipped to get at our data - data_type_vo = self.valobj.CreateChildAtOffset("dt", - self.sys_params.pointer_size, - self.sys_params.types_cache.char) - data_type = ((data_type_vo.GetValueAsUnsigned(0) % 256) & 0x1F) - data_offset = 2 * self.sys_params.pointer_size - if data_type == 0B00001: - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.char) - statistics.metric_hit('code_notrun',self.valobj) - return '(char)' + str(ord(ctypes.c_char(chr(data_vo.GetValueAsUnsigned(0))).value)) - elif data_type == 0B0010: - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.short) - statistics.metric_hit('code_notrun',self.valobj) - return '(short)' + str(ctypes.c_short(data_vo.GetValueAsUnsigned(0) % (256*256)).value) - # IF tagged pointers are possible on 32bit+v2 runtime - # (of which the only existing instance should be iOS) - # then values of this type might be tagged - elif data_type == 0B0011: - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.int) - statistics.metric_hit('code_notrun',self.valobj) - return '(int)' + str(ctypes.c_int(data_vo.GetValueAsUnsigned(0)% (256*256*256*256)).value) - # apparently, on is_64_bit architectures, these are the only values that will ever - # be represented by a non tagged pointers - elif data_type == 0B10001: - data_offset = data_offset + 8 # 8 is needed even if we are on 32bit - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.longlong) - statistics.metric_hit('code_notrun',self.valobj) - return '(long)' + str(ctypes.c_long(data_vo.GetValueAsUnsigned(0)).value) - elif data_type == 0B0100: - if self.sys_params.is_64_bit: - data_offset = data_offset + self.sys_params.pointer_size - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.longlong) - statistics.metric_hit('code_notrun',self.valobj) - return '(long)' + str(ctypes.c_long(data_vo.GetValueAsUnsigned(0)).value) - elif data_type == 0B0101: - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.longlong) - data_plain = int(str(data_vo.GetValueAsUnsigned(0) & 0x00000000FFFFFFFF)) - packed = struct.pack('I', data_plain) - data_float = struct.unpack('f', packed)[0] - statistics.metric_hit('code_notrun',self.valobj) - return '(float)' + str(data_float) - elif data_type == 0B0110: - data_vo = self.valobj.CreateChildAtOffset("data", - data_offset, - self.sys_params.types_cache.longlong) - data_plain = data_vo.GetValueAsUnsigned(0) - data_double = struct.unpack('d', struct.pack('Q', data_plain))[0] - statistics.metric_hit('code_notrun',self.valobj) - return '(double)' + str(data_double) - statistics.metric_hit('unknown_class',str(valobj.GetName()) + " had unknown data_type " + str(data_type)) - return 'unexpected: dt = ' + str(data_type) + + def adjust_for_architecture(self): + pass + + def __init__(self, valobj, params): + logger = lldb.formatters.Logger.Logger() + self.valobj = valobj + self.sys_params = params + if not(self.sys_params.types_cache.char): + self.sys_params.types_cache.char = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeChar) + if not(self.sys_params.types_cache.short): + self.sys_params.types_cache.short = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeShort) + if not(self.sys_params.types_cache.ushort): + self.sys_params.types_cache.ushort = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedShort) + if not(self.sys_params.types_cache.int): + self.sys_params.types_cache.int = self.valobj.GetType().GetBasicType(lldb.eBasicTypeInt) + if not(self.sys_params.types_cache.long): + self.sys_params.types_cache.long = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeLong) + if not(self.sys_params.types_cache.ulong): + self.sys_params.types_cache.ulong = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedLong) + if not(self.sys_params.types_cache.longlong): + self.sys_params.types_cache.longlong = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeLongLong) + if not(self.sys_params.types_cache.ulonglong): + self.sys_params.types_cache.ulonglong = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedLongLong) + if not(self.sys_params.types_cache.float): + self.sys_params.types_cache.float = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeFloat) + if not(self.sys_params.types_cache.double): + self.sys_params.types_cache.double = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeDouble) + self.update() + + def update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() + + def value(self): + logger = lldb.formatters.Logger.Logger() + global statistics + # we need to skip the ISA, then the next byte tells us what to read + # we then skip one other full pointer worth of data and then fetch the contents + # if we are fetching an int64 value, one more pointer must be skipped + # to get at our data + data_type_vo = self.valobj.CreateChildAtOffset( + "dt", self.sys_params.pointer_size, self.sys_params.types_cache.char) + data_type = ((data_type_vo.GetValueAsUnsigned(0) % 256) & 0x1F) + data_offset = 2 * self.sys_params.pointer_size + if data_type == 0B00001: + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.char) + statistics.metric_hit('code_notrun', self.valobj) + return '(char)' + \ + str(ord(ctypes.c_char(chr(data_vo.GetValueAsUnsigned(0))).value)) + elif data_type == 0B0010: + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.short) + statistics.metric_hit('code_notrun', self.valobj) + return '(short)' + str( + ctypes.c_short( + data_vo.GetValueAsUnsigned(0) % + (256 * 256)).value) + # IF tagged pointers are possible on 32bit+v2 runtime + # (of which the only existing instance should be iOS) + # then values of this type might be tagged + elif data_type == 0B0011: + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.int) + statistics.metric_hit('code_notrun', self.valobj) + return '(int)' + str(ctypes.c_int(data_vo.GetValueAsUnsigned(0) % + (256 * 256 * 256 * 256)).value) + # apparently, on is_64_bit architectures, these are the only values that will ever + # be represented by a non tagged pointers + elif data_type == 0B10001: + data_offset = data_offset + 8 # 8 is needed even if we are on 32bit + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.longlong) + statistics.metric_hit('code_notrun', self.valobj) + return '(long)' + \ + str(ctypes.c_long(data_vo.GetValueAsUnsigned(0)).value) + elif data_type == 0B0100: + if self.sys_params.is_64_bit: + data_offset = data_offset + self.sys_params.pointer_size + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.longlong) + statistics.metric_hit('code_notrun', self.valobj) + return '(long)' + \ + str(ctypes.c_long(data_vo.GetValueAsUnsigned(0)).value) + elif data_type == 0B0101: + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.longlong) + data_plain = int( + str(data_vo.GetValueAsUnsigned(0) & 0x00000000FFFFFFFF)) + packed = struct.pack('I', data_plain) + data_float = struct.unpack('f', packed)[0] + statistics.metric_hit('code_notrun', self.valobj) + return '(float)' + str(data_float) + elif data_type == 0B0110: + data_vo = self.valobj.CreateChildAtOffset( + "data", data_offset, self.sys_params.types_cache.longlong) + data_plain = data_vo.GetValueAsUnsigned(0) + data_double = struct.unpack('d', struct.pack('Q', data_plain))[0] + statistics.metric_hit('code_notrun', self.valobj) + return '(double)' + str(data_double) + statistics.metric_hit( + 'unknown_class', str( + valobj.GetName()) + " had unknown data_type " + str(data_type)) + return 'unexpected: dt = ' + str(data_type) class NSUnknownNumber_SummaryProvider: - def adjust_for_architecture(self): - pass - - def __init__(self, valobj, params): - logger = lldb.formatters.Logger.Logger() - self.valobj = valobj; - self.sys_params = params - self.update(); - - def update(self): - logger = lldb.formatters.Logger.Logger() - self.adjust_for_architecture(); - - def value(self): - logger = lldb.formatters.Logger.Logger() - stream = lldb.SBStream() - self.valobj.GetExpressionPath(stream) - expr = "(NSString*)[" + stream.GetData() + " stringValue]" - num_children_vo = self.valobj.CreateValueFromExpression("str",expr) - if num_children_vo.IsValid(): - return num_children_vo.GetSummary() - return '<variable is not NSNumber>' + + def adjust_for_architecture(self): + pass + + def __init__(self, valobj, params): + logger = lldb.formatters.Logger.Logger() + self.valobj = valobj + self.sys_params = params + self.update() + + def update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() + + def value(self): + logger = lldb.formatters.Logger.Logger() + stream = lldb.SBStream() + self.valobj.GetExpressionPath(stream) + expr = "(NSString*)[" + stream.GetData() + " stringValue]" + num_children_vo = self.valobj.CreateValueFromExpression("str", expr) + if num_children_vo.IsValid(): + return num_children_vo.GetSummary() + return '<variable is not NSNumber>' + def GetSummary_Impl(valobj): - logger = lldb.formatters.Logger.Logger() - global statistics - class_data,wrapper =lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection(valobj,statistics) - if wrapper: - return wrapper - - name_string = class_data.class_name() - logger >> "class name is: " + str(name_string) - - if name_string == 'NSNumber' or name_string == '__NSCFNumber': - if class_data.is_tagged(): - wrapper = NSTaggedNumber_SummaryProvider(valobj,class_data.info_bits(),class_data.value(), class_data.sys_params) - statistics.metric_hit('code_notrun',valobj) - else: - # the wrapper might be unable to decipher what is into the NSNumber - # and then have to run code on it - wrapper = NSUntaggedNumber_SummaryProvider(valobj, class_data.sys_params) - else: - wrapper = NSUnknownNumber_SummaryProvider(valobj, class_data.sys_params) - statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + name_string) - return wrapper; - - -def NSNumber_SummaryProvider (valobj,dict): - logger = lldb.formatters.Logger.Logger() - provider = GetSummary_Impl(valobj); - if provider != None: - if isinstance(provider,lldb.runtime.objc.objc_runtime.SpecialSituation_Description): - return provider.message() - try: - summary = provider.value(); - except Exception as foo: - print foo -# except: - summary = None - logger >> "got summary " + str(summary) - if summary == None: - summary = '<variable is not NSNumber>' - return str(summary) - return 'Summary Unavailable' + logger = lldb.formatters.Logger.Logger() + global statistics + class_data, wrapper = lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection( + valobj, statistics) + if wrapper: + return wrapper + + name_string = class_data.class_name() + logger >> "class name is: " + str(name_string) + + if name_string == 'NSNumber' or name_string == '__NSCFNumber': + if class_data.is_tagged(): + wrapper = NSTaggedNumber_SummaryProvider( + valobj, class_data.info_bits(), class_data.value(), class_data.sys_params) + statistics.metric_hit('code_notrun', valobj) + else: + # the wrapper might be unable to decipher what is into the NSNumber + # and then have to run code on it + wrapper = NSUntaggedNumber_SummaryProvider( + valobj, class_data.sys_params) + else: + wrapper = NSUnknownNumber_SummaryProvider( + valobj, class_data.sys_params) + statistics.metric_hit( + 'unknown_class', + valobj.GetName() + + " seen as " + + name_string) + return wrapper -def __lldb_init_module(debugger,dict): - debugger.HandleCommand("type summary add -F NSNumber.NSNumber_SummaryProvider NSNumber") - debugger.HandleCommand("type summary add -F NSNumber.NSNumber_SummaryProvider __NSCFBoolean") - debugger.HandleCommand("type summary add -F NSNumber.NSNumber_SummaryProvider __NSCFNumber") +def NSNumber_SummaryProvider(valobj, dict): + logger = lldb.formatters.Logger.Logger() + provider = GetSummary_Impl(valobj) + if provider is not None: + if isinstance( + provider, + lldb.runtime.objc.objc_runtime.SpecialSituation_Description): + return provider.message() + try: + summary = provider.value() + except Exception as foo: + print foo +# except: + summary = None + logger >> "got summary " + str(summary) + if summary is None: + summary = '<variable is not NSNumber>' + return str(summary) + return 'Summary Unavailable' + +def __lldb_init_module(debugger, dict): + debugger.HandleCommand( + "type summary add -F NSNumber.NSNumber_SummaryProvider NSNumber") + debugger.HandleCommand( + "type summary add -F NSNumber.NSNumber_SummaryProvider __NSCFBoolean") + debugger.HandleCommand( + "type summary add -F NSNumber.NSNumber_SummaryProvider __NSCFNumber") |