+#if CONFIG_KERN_PREEMPT
+ // FIXME: proc_exit
+ getcontext(&proc->context);
+ proc->context.uc_stack.ss_sp = stack_base;
+ proc->context.uc_stack.ss_size = stack_size;
+ proc->context.uc_link = NULL;
+ makecontext(&proc->context, (void (*)(void))proc_entry, 1, entry);
+
+#else // !CONFIG_KERN_PREEMPT