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(* Read an ELF (Linux binary) header.
* $Id: elf.ml 142 2008-07-17 15:45:56Z richard.wm.jones $
*)
open Printf
let () =
let filename = "/bin/ls" in
let bits = Bitstring.bitstring_of_file filename in
bitmatch bits with
| { 0x7f : 8; "ELF" : 24 : string; (* ELF magic number *)
_ : 12*8 : bitstring; (* ELF identifier *)
e_type : 16 : littleendian; (* object file type *)
e_machine : 16 : littleendian (* architecture *)
} ->
printf "%s: ELF binary, type %d, arch %d\n" filename e_type e_machine
| { _ } ->
eprintf "%s: Not an ELF binary\n" filename
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