48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
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# -------------------------------------------------------------------------------
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# elftools: ehabi/structs.py
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#
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# Encapsulation of Construct structs for parsing an EHABI, adjusted for
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# correct endianness and word-size.
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#
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# LeadroyaL (leadroyal@qq.com)
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# This code is in the public domain
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# -------------------------------------------------------------------------------
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from ..construct import UBInt32, ULInt32, Struct
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class EHABIStructs(object):
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""" Accessible attributes:
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EH_index_struct:
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Struct of item in section .ARM.exidx.
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EH_table_struct:
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Struct of item in section .ARM.extab.
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"""
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def __init__(self, little_endian):
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self._little_endian = little_endian
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self._create_structs()
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def _create_structs(self):
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if self._little_endian:
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self.EHABI_uint32 = ULInt32
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else:
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self.EHABI_uint32 = UBInt32
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self._create_exception_handler_index()
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self._create_exception_handler_table()
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def _create_exception_handler_index(self):
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self.EH_index_struct = Struct(
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'EH_index',
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self.EHABI_uint32('word0'),
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self.EHABI_uint32('word1')
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)
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def _create_exception_handler_table(self):
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self.EH_table_struct = Struct(
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'EH_table',
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self.EHABI_uint32('word0'),
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)
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