ref: 07c3fc899a4788187f52b99961c7ae1777201d5b dir: /lib/c/arch/amd64/openbsd/syscall.lst/
#number name 1 _Exit 3 _read 4 _write 5 _open 6 _close 17 _brk 20 _getpid 46 _sigaction 122 _kill 198 _lseek