ref: 9b355acf495a70ce2767ffae671fe2ae22521a2e
dir: /src/libc/arch/amd64/netbsd/syscall.lst/
#Tab 15 #number name nargs 1 _exit 1 2 _fork 0 3 _read 3 4 _write 3 5 _open 3 6 _close 1 17 _brk 1 20 _getpid 0 37 _kill 2 199 _lseek 3 308 _setcontext 1 340 _sigaction2 5 418 _gettimeofday 2 449 _wait4 4