* readelf.c (eh_addr_size): New variable.
(find_section): Move earlier in file. Return empty sections too.
(process_program_headers): Use find_section to find .dynamic.
(process_section_headers): Initialize eh_addr_size.
(dump_ia64_unwind, slurp_ia64_unwind_table, ia64_process_unwind)
(dump_hppa_unwind, slurp_hppa_unwind_table, hppa_process_unwind)
(display_debug_frames): Use it instead of local addr_size variable.
(size_of_encoded_value): Get pointer size from eh_addr_size rather
than is_32bit_elf.