fix sys_kill.

Ubiquitous/XiZi_AIoT/softkernel/syscall/sys_exit.c

@@ -82,7 +82,7 @@ int sys_exit(struct TaskMicroDescriptor* ptask)
     }
 
     // delete task for pcb_list
-    xizi_task_manager.cur_task_yield_noschedule();
+    xizi_task_manager.task_yield_noschedule(ptask, true);
     ptask->state = DEAD;
 
     return 0;

Ubiquitous/XiZi_AIoT/softkernel/syscall/sys_register_irq.c

@@ -84,7 +84,7 @@ int user_irq_handler(int irq, void* tf, void* arg)
     p_mmu_driver->LoadPgdir((uintptr_t)V2P(cur_cpu()->task->pgdir.pd_addr));
 
     next_task_emergency = irq_forward_table[irq].handle_task;
-    xizi_task_manager.cur_task_yield_noschedule();
+    xizi_task_manager.task_yield_noschedule(cur_cpu()->task, false);
     return 0;
 }
 

Ubiquitous/XiZi_AIoT/softkernel/syscall/sys_yield.c

@@ -35,6 +35,6 @@ Modification:
 
 int sys_yield()
 {
-    xizi_task_manager.cur_task_yield_noschedule();
+    xizi_task_manager.task_yield_noschedule(cur_cpu()->task, false);
     return 0;
 }