ref: 4f9f652f766f4ba4854889a45f1940737f3856c7 dir: /libc/src/sys/amd64-sysv-linux/syscall.awk/
/^#/ {next} {name=$2 ".s" printf "%s:\n\tmov\t%d,%%rax\n\tsyscall\n\tret\n",$2, $1 > name close(name)}