b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
207 lines
6.8 KiB
Python
207 lines
6.8 KiB
Python
"""
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LLDB AppKit formatters
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part of The LLVM Compiler Infrastructure
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This file is distributed under the University of Illinois Open Source
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License. See LICENSE.TXT for details.
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"""
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# summary provider for CF(Mutable)BitVector
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import lldb
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import ctypes
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import lldb.runtime.objc.objc_runtime
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import lldb.formatters.metrics
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import lldb.formatters.Logger
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# first define some utility functions
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def byte_index(abs_pos):
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logger = lldb.formatters.Logger.Logger()
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return abs_pos / 8
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def bit_index(abs_pos):
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logger = lldb.formatters.Logger.Logger()
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return abs_pos & 7
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def get_bit(byte, index):
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logger = lldb.formatters.Logger.Logger()
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if index < 0 or index > 7:
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return None
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return (byte >> (7 - index)) & 1
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def grab_array_item_data(pointer, index):
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logger = lldb.formatters.Logger.Logger()
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return pointer.GetPointeeData(index, 1)
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statistics = lldb.formatters.metrics.Metrics()
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statistics.add_metric('invalid_isa')
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statistics.add_metric('invalid_pointer')
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statistics.add_metric('unknown_class')
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statistics.add_metric('code_notrun')
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# despite the similary to synthetic children providers, these classes are not
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# trying to provide anything but a summary for a CF*BitVector, so they need not
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# obey the interface specification for synthetic children providers
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class CFBitVectorKnown_SummaryProvider:
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def adjust_for_architecture(self):
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logger = lldb.formatters.Logger.Logger()
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self.uiint_size = self.sys_params.types_cache.NSUInteger.GetByteSize()
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pass
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def __init__(self, valobj, params):
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logger = lldb.formatters.Logger.Logger()
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self.valobj = valobj
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self.sys_params = params
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if not(self.sys_params.types_cache.NSUInteger):
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if self.sys_params.is_64_bit:
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self.sys_params.types_cache.NSUInteger = self.valobj.GetType(
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).GetBasicType(lldb.eBasicTypeUnsignedLong)
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else:
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self.sys_params.types_cache.NSUInteger = self.valobj.GetType(
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).GetBasicType(lldb.eBasicTypeUnsignedInt)
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if not(self.sys_params.types_cache.charptr):
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self.sys_params.types_cache.charptr = self.valobj.GetType(
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).GetBasicType(lldb.eBasicTypeChar).GetPointerType()
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self.update()
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def update(self):
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logger = lldb.formatters.Logger.Logger()
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self.adjust_for_architecture()
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# we skip the CFRuntimeBase
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# then the next CFIndex is the count
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# then we skip another CFIndex and then we get at a byte array
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# that wraps the individual bits
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def contents(self):
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logger = lldb.formatters.Logger.Logger()
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count_vo = self.valobj.CreateChildAtOffset(
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"count",
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self.sys_params.cfruntime_size,
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self.sys_params.types_cache.NSUInteger)
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count = count_vo.GetValueAsUnsigned(0)
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if count == 0:
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return '(empty)'
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array_vo = self.valobj.CreateChildAtOffset(
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"data",
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self.sys_params.cfruntime_size +
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2 *
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self.uiint_size,
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self.sys_params.types_cache.charptr)
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data_list = []
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cur_byte_pos = None
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for i in range(0, count):
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if cur_byte_pos is None:
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cur_byte_pos = byte_index(i)
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cur_byte = grab_array_item_data(array_vo, cur_byte_pos)
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cur_byte_val = cur_byte.uint8[0]
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else:
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byte_pos = byte_index(i)
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# do not fetch the pointee data every single time through
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if byte_pos != cur_byte_pos:
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cur_byte_pos = byte_pos
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cur_byte = grab_array_item_data(array_vo, cur_byte_pos)
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cur_byte_val = cur_byte.uint8[0]
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bit = get_bit(cur_byte_val, bit_index(i))
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if (i % 4) == 0:
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data_list.append(' ')
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if bit == 1:
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data_list.append('1')
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else:
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data_list.append('0')
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return ''.join(data_list)
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class CFBitVectorUnknown_SummaryProvider:
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def adjust_for_architecture(self):
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pass
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def __init__(self, valobj, params):
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logger = lldb.formatters.Logger.Logger()
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self.valobj = valobj
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self.sys_params = params
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self.update()
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def update(self):
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logger = lldb.formatters.Logger.Logger()
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self.adjust_for_architecture()
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def contents(self):
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logger = lldb.formatters.Logger.Logger()
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return '<unable to summarize this CFBitVector>'
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def GetSummary_Impl(valobj):
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logger = lldb.formatters.Logger.Logger()
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global statistics
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class_data, wrapper = lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection(
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valobj, statistics)
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if wrapper:
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return wrapper
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name_string = class_data.class_name()
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actual_name = name_string
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logger >> "name string got was " + \
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str(name_string) + " but actual name is " + str(actual_name)
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if class_data.is_cftype():
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# CFBitVectorRef does not expose an actual NSWrapper type, so we have to check that this is
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# an NSCFType and then check we are a pointer-to CFBitVectorRef
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valobj_type = valobj.GetType()
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if valobj_type.IsValid() and valobj_type.IsPointerType():
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valobj_type = valobj_type.GetPointeeType()
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if valobj_type.IsValid():
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actual_name = valobj_type.GetName()
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if actual_name == '__CFBitVector' or actual_name == '__CFMutableBitVector':
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wrapper = CFBitVectorKnown_SummaryProvider(
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valobj, class_data.sys_params)
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statistics.metric_hit('code_notrun', valobj)
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else:
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wrapper = CFBitVectorUnknown_SummaryProvider(
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valobj, class_data.sys_params)
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print actual_name
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else:
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wrapper = CFBitVectorUnknown_SummaryProvider(
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valobj, class_data.sys_params)
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print name_string
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statistics.metric_hit(
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'unknown_class',
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valobj.GetName() +
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" seen as " +
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name_string)
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return wrapper
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def CFBitVector_SummaryProvider(valobj, dict):
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logger = lldb.formatters.Logger.Logger()
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provider = GetSummary_Impl(valobj)
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if provider is not None:
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if isinstance(
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provider,
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lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
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return provider.message()
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try:
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summary = provider.contents()
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except:
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summary = None
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logger >> "summary got from provider: " + str(summary)
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if summary is None or summary == '':
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summary = '<variable is not CFBitVector>'
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return summary
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return 'Summary Unavailable'
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def __lldb_init_module(debugger, dict):
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debugger.HandleCommand(
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"type summary add -F CFBitVector.CFBitVector_SummaryProvider CFBitVectorRef CFMutableBitVectorRef")
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