fix:系统pend类接口未对软件定时器任务进行限制，容易引发软件定时器任务非正常挂起，

出现响应不及时的问题

close: #I44CI9

Signed-off-by: zff <zhangfanfan2@huawei.com>
Change-Id: I6aa612f3c34eef274eaa0c98efed0a3c4736de6e

kernel/include/los_event.h

@@ -155,6 +155,15 @@ extern "C" {
  */
 #define LOS_ERRNO_EVENT_SHOULD_NOT_DESTROYED LOS_ERRNO_OS_ERROR(LOS_MOD_EVENT, 0x08)
 
+/**
+ * @ingroup los_event
+ * Event reading error code: The event is being read in a system-level task.
+ * Value: 0x02001c09
+ *
+ * Solution: Read the event in a valid task.
+ */
+#define LOS_ERRNO_EVENT_READ_IN_SYSTEM_TASK LOS_ERRNO_OS_ERROR(LOS_MOD_EVENT, 0x09)
+
 /**
  * @ingroup los_event
  * Event control structure

kernel/include/los_mux.h

@@ -172,6 +172,16 @@ extern "C" {
  */
 #define LOS_ERRNO_MUX_MAXNUM_ZERO   LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x0C)
 
+/**
+ * @ingroup los_mux
+ *
+ * Mutex error code: The API is called in a system-level task, which is forbidden.
+ * Value: 0x02001d0D
+ *
+ * Solution: Do not call the API in system-level tasks.
+ */
+#define LOS_ERRNO_MUX_PEND_IN_SYSTEM_TASK   LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x0D)
+
 /**
  * @ingroup los_mux
  * @brief Create a mutex.

kernel/include/los_sem.h

@@ -156,6 +156,15 @@ extern "C" {
  */
 #define LOS_ERRNO_SEM_MAXNUM_ZERO  LOS_ERRNO_OS_ERROR(LOS_MOD_SEM, 0x0A)
 
+/**
+ * @ingroup los_sem
+ * Semaphore error code: The API is called in a system-level task, which is forbidden.
+ * Value: 0x0200070B
+ *
+ * Solution: Do not call the API in system-level tasks.
+ */
+#define LOS_ERRNO_SEM_PEND_IN_SYSTEM_TASK  LOS_ERRNO_OS_ERROR(LOS_MOD_SEM, 0x0B)
+
 /**
  * @ingroup los_sem
  * @brief Create a Counting semaphore.

kernel/include/los_task.h

@@ -241,13 +241,14 @@ extern "C" {
 
 /**
  * @ingroup los_task
- * Task error code: The operation is performed on the idle task.
+ * Task error code: The operation is performed on the system-level task.
  *
  * Value: 0x02000214
  *
- * Solution: Check the task ID and do not operate on the idle task.
+ * Solution: Check the task ID and do not operate on the system-level task.
  */
-#define LOS_ERRNO_TSK_OPERATE_IDLE                  LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x14)
+#define LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK           LOS_ERRNO_OS_ERROR(LOS_MOD_TSK, 0x14)
+#define LOS_ERRNO_TSK_OPERATE_IDLE                  LOS_ERRNO_TSK_OPERATE_SYSTEM_TASK
 
 /**
  * @ingroup los_task
@@ -1284,6 +1285,14 @@ extern UINT32 LOS_TaskDetach(UINT32 taskID);
  */
 #define OS_TASK_STATUS_EXIT                         0x0100
 
+/**
+ * @ingroup los_task
+ * Flag that indicates the task property.
+ *
+ * The task is system-level task, like idle, swtmr and etc.
+ */
+#define OS_TASK_FLAG_SYSTEM_TASK                    0x1000U
+
 /**
  * @ingroup los_task
  * Flag that indicates the task or task control block status.