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