examples/elfclass_address_size.py

   1 #-------------------------------------------------------------------------------
   2 # elftools example: elfclass_address_size.py
   3 #
   4 # This example explores the ELF class (32 or 64-bit) and address size in each
   5 # of the CUs in the DWARF information.
   6 #
   7 # Eli Bendersky (eliben@gmail.com)
   8 # This code is in the public domain
   9 #-------------------------------------------------------------------------------
  10 from __future__ import print_function
  11 import sys
  12 from elftools.elf.elffile import ELFFile
  13
  14
  15 def process_file(filename):
  16     with open(filename) as f:
  17         elffile = ELFFile(f)
  18         # elfclass is a public attribute of ELFFile, read from its header
  19         print('%s: elfclass is %s' % (filename, elffile.elfclass))
  20
  21         if elffile.has_dwarf_info():
  22             dwarfinfo = elffile.get_dwarf_info()
  23             for CU in dwarfinfo.iter_CUs():
  24                 # cu_offset is a public attribute of CU
  25                 # address_size is part of the CU header
  26                 print('  CU at offset 0x%x. address_size is %s' % (
  27                     CU.cu_offset, CU['address_size']))
  28
  29
  30 if __name__ == '__main__':
  31     for filename in sys.argv[1:]:
  32         process_file(filename)
  33