| #------------------------------------------------------------------------------- |
| # elftools: dwarf/locationlists.py |
| # |
| # DWARF location lists section decoding |
| # |
| # Eli Bendersky (eliben@gmail.com) |
| # This code is in the public domain |
| #------------------------------------------------------------------------------- |
| from collections import namedtuple |
| |
| from ..common.utils import struct_parse |
| |
| |
| LocationEntry = namedtuple('LocationEntry', 'begin_offset end_offset loc_expr') |
| BaseAddressEntry = namedtuple('BaseAddressEntry', 'base_address') |
| |
| |
| class LocationLists(object): |
| def __init__(self, stream, structs): |
| self._max_addr = 2 ** (self.structs.address_size * 8) - 1 |
| |
| def get_location_list_at_offset(self, offset): |
| pass |
| |
| def iter_location_lists(self): |
| pass |
| |
| def _parse_location_list_from_stream(self): |
| lst = [] |
| while True: |
| begin_offset = struct_parse( |
| self.structs.Dwarf_target_addr(''), self.stream) |
| end_offset = struct_parse( |
| self.structs.Dwarf_target_addr(''), self.stream) |
| if begin_offset == 0 and end_offset == 0: |
| # End of list - we're done. |
| break |
| elif begin_offset == self._max_addr: |
| # base |
| else: |
| # entry... |
| |
| |
| |
