ref: ae0d87a19f53e5e8690e4a41536b5a825a3d9787 dir: /src/libc/arch/amd64/openbsd/syscall.lst/
#number name 1 _Exit 3 _read 4 _write 5 _open 6 _close 17 _brk 20 _getpid 46 _sigaction2 122 _kill 198 _lseek