z.py

   1 import sys
   2 from elftools.elf.structs import ELFStructs
   3 from elftools.elf.elffile import ELFFile
   4 from elftools.elf.sections import *
   5
   6 # read a little-endian, 64-bit file
   7 es = ELFStructs(True, 64)
   8
   9 stream = open('binfiles/z.elf', 'rb')
  10 #stream = open('binfiles/z32.elf', 'rb')
  11
  12 efile = ELFFile(stream)
  13
  14 print '===> %s sections!' % efile.num_sections()
  15 print '===> %s segments!' % efile.num_segments()
  16
  17 for sec in efile.iter_sections():
  18     print type(sec), sec.name
  19     if isinstance(sec, SymbolTableSection):
  20         print '   linked string table:', sec.stringtable.name
  21
  22 for seg in efile.iter_segments():
  23     print type(seg), seg['p_type'], seg['p_offset']
  24
  25 for sec in efile.iter_sections():
  26     if isinstance(sec, SymbolTableSection):
  27         print 'symbol table "%s ~~~"' % sec.name
  28         for sym in sec.iter_symbols():
  29             print '%-26s %s %s' % (sym.name, sym['st_info']['type'], sym['st_info']['bind'])
  30
  31
  32 #~ print 'num', efile.num_sections()
  33 #~ sec = efile.get_section(39)
  34 #~ print sec.header
  35 #~ print sec.name
  36 #~ print sec['sh_type']
  37 #~ print map(ord, sec.data())
  38
  39 #~ print sec.stream
  40 #~ print map(ord, efile._stringtable)
  41
  42 #~ print efile.header
  43 #~ print dir(efile)
  44 #~ print efile['e_type']
  45
  46 #~ shtable_offset = efile['e_shoff']
  47 #~ strtable_section_offset = shtable_offset + efile['e_shstrndx'] * efile['e_shentsize']
  48
  49 #~ # get to the section header for the sh string table
  50 #~ print strtable_section_offset
  51 #~ stream.seek(strtable_section_offset)
  52 #~ sheader = es.Elf_Shdr.parse_stream(stream)
  53 #~ print sheader
  54
  55 #~ # yay, looks correct!!
  56 #~ stream.seek(sheader.sh_offset)
  57 #~ buf = stream.read(sheader.sh_size)
  58 #~ for c in buf:
  59     #~ sys.stdout.write('%02X' % ord(c))
  60
  61
  62
  63
  64 #~ print es.Elf_Ehdr