ref: 2a5f32b8f028d8cfbc221bbccd6624f323de6825 dir: /libc/src/sys/amd64-linux/syscall.awk/
/^#/ {next} {name=$2 ".s" printf "%s:\n\tmov\t%d,%%rax\n\tsyscall\n\tret\n",$2, $1 > name close(name)}