fixed ecfdf7f from https://gitee.com/zhushengle/kernel_liteos_m/pulls/311

feat: 支持posix 和 cmsis join能力

支持API:
  LOS_TaskJoin
  LOS_TaskDeatch
  pthread_join
  pthread_deatch
  osThreadJoin
  osThreadDetach
Close #I44V26

Signed-off-by: zhushengle <zhushengle@huawei.com>
Change-Id: Ib61e69c280eef2e4b3b79d9bba7bbd5a300c7fe4

testsuits/sample/kernel/event/It_los_event.c

@@ -38,6 +38,7 @@ EVENT_CB_S g_pevent;
 VOID ItSuiteLosEvent()
 {
     ItLosEvent001();
+    ItLosEvent003();
     ItLosEvent004();
     ItLosEvent005();
     ItLosEvent006();
@@ -64,7 +65,6 @@ VOID ItSuiteLosEvent()
     ItLosEvent043();
 #if (LOS_KERNEL_TEST_FULL == 1)
     ItLosEvent002();
-    ItLosEvent003();
     ItLosEvent011();
     ItLosEvent012();
     ItLosEvent015();

testsuits/sample/kernel/event/It_los_event_003.c

@@ -57,7 +57,7 @@ static UINT32 Testcase(VOID)
     task1.pcName = "EventTsk3";
     task1.uwStackSize = TASK_STACK_SIZE_TEST;
     task1.usTaskPrio = TASK_PRIO_TEST - 2; // 2, set new task priority, it is higher than the test task.
-    task1.uwResved = LOS_TASK_STATUS_DETACHED;
+    task1.uwResved = LOS_TASK_ATTR_JOINABLE;
 
     g_testCount = 0;
     g_pevent.uwEventID = 0;
@@ -71,11 +71,13 @@ static UINT32 Testcase(VOID)
 
     g_testCount++;
 
-    LOS_TaskDelay(1);
+    ret = LOS_TaskJoin(g_testTaskID01, NULL);
+    ICUNIT_GOTO_EQUAL(ret, LOS_OK, ret, EXIT);
 
     ICUNIT_GOTO_EQUAL(g_testCount, 3, g_testCount, EXIT); // 3, Here, assert that g_testCount is equal to 3.
 EXIT:
     LOS_TaskDelete(g_testTaskID01);
+    LOS_TaskJoin(g_testCount, NULL);
 
     return LOS_OK;
 }