do_arch_prctl_64
long do_arch_prctl_64(struct task_struct *task, int option, unsigned long arg2);
# define do_set_thread_area_64(p, s, t) do_arch_prctl_64(p, s, t)
return do_arch_prctl_64(current, option, arg2);
ret = do_arch_prctl_64(child, data, addr);