.section ".note.openbsd.ident", "a"
        .int 8
        .int 4
        .int 0x01
        .ascii "OpenBSD\0"
        .int 201305  ;; from OPENBSD_VERSION <sys/param.h>

        .section .data
s:
        .ascii "hello world\n"

        .section .text
        .globl _start
_start:
        movl $4, %eax
        movl $1, %ebx
        leal s, %ecx
        movl $12, %edx
        int $0x80

        xorl %ebx,%ebx
        xorl %eax,%eax
        incl %eax
        int $0x80