diff options
Diffstat (limited to 'examples/summaries/cocoa/CFBitVector.py')
| -rw-r--r-- | examples/summaries/cocoa/CFBitVector.py | 301 |
1 files changed, 166 insertions, 135 deletions
diff --git a/examples/summaries/cocoa/CFBitVector.py b/examples/summaries/cocoa/CFBitVector.py index b0c9e7912106..e788e625b0d8 100644 --- a/examples/summaries/cocoa/CFBitVector.py +++ b/examples/summaries/cocoa/CFBitVector.py @@ -13,23 +13,28 @@ import lldb.formatters.metrics import lldb.formatters.Logger # first define some utility functions + + def byte_index(abs_pos): - logger = lldb.formatters.Logger.Logger() - return abs_pos/8 + logger = lldb.formatters.Logger.Logger() + return abs_pos / 8 + def bit_index(abs_pos): - logger = lldb.formatters.Logger.Logger() - return abs_pos & 7 + logger = lldb.formatters.Logger.Logger() + return abs_pos & 7 + + +def get_bit(byte, index): + logger = lldb.formatters.Logger.Logger() + if index < 0 or index > 7: + return None + return (byte >> (7 - index)) & 1 -def get_bit(byte,index): - logger = lldb.formatters.Logger.Logger() - if index < 0 or index > 7: - return None - return (byte >> (7-index)) & 1 -def grab_array_item_data(pointer,index): - logger = lldb.formatters.Logger.Logger() - return pointer.GetPointeeData(index,1) +def grab_array_item_data(pointer, index): + logger = lldb.formatters.Logger.Logger() + return pointer.GetPointeeData(index, 1) statistics = lldb.formatters.metrics.Metrics() statistics.add_metric('invalid_isa') @@ -40,136 +45,162 @@ statistics.add_metric('code_notrun') # despite the similary to synthetic children providers, these classes are not # trying to provide anything but a summary for a CF*BitVector, so they need not # obey the interface specification for synthetic children providers + + class CFBitVectorKnown_SummaryProvider: - def adjust_for_architecture(self): - logger = lldb.formatters.Logger.Logger() - self.uiint_size = self.sys_params.types_cache.NSUInteger.GetByteSize() - 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.NSUInteger): - if self.sys_params.is_64_bit: - self.sys_params.types_cache.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedLong) - else: - self.sys_params.types_cache.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedInt) - if not(self.sys_params.types_cache.charptr): - self.sys_params.types_cache.charptr = self.valobj.GetType().GetBasicType(lldb.eBasicTypeChar).GetPointerType() - self.update(); - - def update(self): - logger = lldb.formatters.Logger.Logger() - self.adjust_for_architecture(); - - # we skip the CFRuntimeBase - # then the next CFIndex is the count - # then we skip another CFIndex and then we get at a byte array - # that wraps the individual bits - - def contents(self): - logger = lldb.formatters.Logger.Logger() - count_vo = self.valobj.CreateChildAtOffset("count",self.sys_params.cfruntime_size, - self.sys_params.types_cache.NSUInteger) - count = count_vo.GetValueAsUnsigned(0) - if count == 0: - return '(empty)' - - array_vo = self.valobj.CreateChildAtOffset("data", - self.sys_params.cfruntime_size+2*self.uiint_size, - self.sys_params.types_cache.charptr) - - data_list = [] - cur_byte_pos = None - for i in range(0,count): - if cur_byte_pos == None: - cur_byte_pos = byte_index(i) - cur_byte = grab_array_item_data(array_vo,cur_byte_pos) - cur_byte_val = cur_byte.uint8[0] - else: - byte_pos = byte_index(i) - # do not fetch the pointee data every single time through - if byte_pos != cur_byte_pos: - cur_byte_pos = byte_pos - cur_byte = grab_array_item_data(array_vo,cur_byte_pos) - cur_byte_val = cur_byte.uint8[0] - bit = get_bit(cur_byte_val,bit_index(i)) - if (i % 4) == 0: - data_list.append(' ') - if bit == 1: - data_list.append('1') - else: - data_list.append('0') - return ''.join(data_list) + + def adjust_for_architecture(self): + logger = lldb.formatters.Logger.Logger() + self.uiint_size = self.sys_params.types_cache.NSUInteger.GetByteSize() + 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.NSUInteger): + if self.sys_params.is_64_bit: + self.sys_params.types_cache.NSUInteger = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedLong) + else: + self.sys_params.types_cache.NSUInteger = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedInt) + if not(self.sys_params.types_cache.charptr): + self.sys_params.types_cache.charptr = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeChar).GetPointerType() + self.update() + + def update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() + + # we skip the CFRuntimeBase + # then the next CFIndex is the count + # then we skip another CFIndex and then we get at a byte array + # that wraps the individual bits + + def contents(self): + logger = lldb.formatters.Logger.Logger() + count_vo = self.valobj.CreateChildAtOffset( + "count", + self.sys_params.cfruntime_size, + self.sys_params.types_cache.NSUInteger) + count = count_vo.GetValueAsUnsigned(0) + if count == 0: + return '(empty)' + + array_vo = self.valobj.CreateChildAtOffset( + "data", + self.sys_params.cfruntime_size + + 2 * + self.uiint_size, + self.sys_params.types_cache.charptr) + + data_list = [] + cur_byte_pos = None + for i in range(0, count): + if cur_byte_pos is None: + cur_byte_pos = byte_index(i) + cur_byte = grab_array_item_data(array_vo, cur_byte_pos) + cur_byte_val = cur_byte.uint8[0] + else: + byte_pos = byte_index(i) + # do not fetch the pointee data every single time through + if byte_pos != cur_byte_pos: + cur_byte_pos = byte_pos + cur_byte = grab_array_item_data(array_vo, cur_byte_pos) + cur_byte_val = cur_byte.uint8[0] + bit = get_bit(cur_byte_val, bit_index(i)) + if (i % 4) == 0: + data_list.append(' ') + if bit == 1: + data_list.append('1') + else: + data_list.append('0') + return ''.join(data_list) class CFBitVectorUnknown_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 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 update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() - def contents(self): - logger = lldb.formatters.Logger.Logger() - return '<unable to summarize this CFBitVector>' + def contents(self): + logger = lldb.formatters.Logger.Logger() + return '<unable to summarize this CFBitVector>' 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() - actual_name = name_string - - logger >> "name string got was " + str(name_string) + " but actual name is " + str(actual_name) - - if class_data.is_cftype(): - # CFBitVectorRef does not expose an actual NSWrapper type, so we have to check that this is - # an NSCFType and then check we are a pointer-to CFBitVectorRef - valobj_type = valobj.GetType() - if valobj_type.IsValid() and valobj_type.IsPointerType(): - valobj_type = valobj_type.GetPointeeType() - if valobj_type.IsValid(): - actual_name = valobj_type.GetName() - if actual_name == '__CFBitVector' or actual_name == '__CFMutableBitVector': - wrapper = CFBitVectorKnown_SummaryProvider(valobj, class_data.sys_params) - statistics.metric_hit('code_notrun',valobj) - else: - wrapper = CFBitVectorUnknown_SummaryProvider(valobj, class_data.sys_params) - print actual_name - else: - wrapper = CFBitVectorUnknown_SummaryProvider(valobj, class_data.sys_params) - print name_string - statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + name_string) - return wrapper; - -def CFBitVector_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.contents(); - except: - summary = None - logger >> "summary got from provider: " + str(summary) - if summary == None or summary == '': - summary = '<variable is not CFBitVector>' - return summary - return 'Summary Unavailable' - -def __lldb_init_module(debugger,dict): - debugger.HandleCommand("type summary add -F CFBitVector.CFBitVector_SummaryProvider CFBitVectorRef CFMutableBitVectorRef") + 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() + actual_name = name_string + + logger >> "name string got was " + \ + str(name_string) + " but actual name is " + str(actual_name) + + if class_data.is_cftype(): + # CFBitVectorRef does not expose an actual NSWrapper type, so we have to check that this is + # an NSCFType and then check we are a pointer-to CFBitVectorRef + valobj_type = valobj.GetType() + if valobj_type.IsValid() and valobj_type.IsPointerType(): + valobj_type = valobj_type.GetPointeeType() + if valobj_type.IsValid(): + actual_name = valobj_type.GetName() + if actual_name == '__CFBitVector' or actual_name == '__CFMutableBitVector': + wrapper = CFBitVectorKnown_SummaryProvider( + valobj, class_data.sys_params) + statistics.metric_hit('code_notrun', valobj) + else: + wrapper = CFBitVectorUnknown_SummaryProvider( + valobj, class_data.sys_params) + print actual_name + else: + wrapper = CFBitVectorUnknown_SummaryProvider( + valobj, class_data.sys_params) + print name_string + statistics.metric_hit( + 'unknown_class', + valobj.GetName() + + " seen as " + + name_string) + return wrapper + + +def CFBitVector_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.contents() + except: + summary = None + logger >> "summary got from provider: " + str(summary) + if summary is None or summary == '': + summary = '<variable is not CFBitVector>' + return summary + return 'Summary Unavailable' + + +def __lldb_init_module(debugger, dict): + debugger.HandleCommand( + "type summary add -F CFBitVector.CFBitVector_SummaryProvider CFBitVectorRef CFMutableBitVectorRef") |