#0  0x00ffffff in ?? ()
#1  0xb7f769d2 in _dl_fini () from /lib/ld-linux.so.2
#2  0xb7d629d9 in exit () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7d4bec4 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#4  0x0804cf81 in _start ()