rtems: Add rtems_task_exit()

Update #3533.

3 files changed, 41 insertions, 0 deletions

diff --git a/cpukit/include/rtems/rtems/tasks.h b/cpukit/include/rtems/rtems/tasks.h
index 585f4c449c..aaba8851df 100644
--- a/cpukit/include/rtems/rtems/tasks.h
+++ b/cpukit/include/rtems/rtems/tasks.h
@@ -227,6 +227,8 @@ rtems_status_code rtems_task_delete(
   rtems_id   id
 );
 
+void rtems_task_exit( void ) RTEMS_NO_RETURN;
+
 /**
  * @brief RTEMS Task Mode
  *
diff --git a/cpukit/rtems/Makefile.am b/cpukit/rtems/Makefile.am
index 7af4ec7deb..fdef7f8022 100644
--- a/cpukit/rtems/Makefile.am
+++ b/cpukit/rtems/Makefile.am
@@ -33,6 +33,7 @@ librtems_a_SOURCES += src/rtemsobjectgetclassicname.c
 librtems_a_SOURCES += src/tasks.c
 librtems_a_SOURCES += src/taskcreate.c
 librtems_a_SOURCES += src/taskdelete.c
+librtems_a_SOURCES += src/taskexit.c
 librtems_a_SOURCES += src/taskgetaffinity.c
 librtems_a_SOURCES += src/taskgetpriority.c
 librtems_a_SOURCES += src/taskgetscheduler.c
diff --git a/cpukit/rtems/src/taskexit.c b/cpukit/rtems/src/taskexit.c
new file mode 100644
index 0000000000..7faf8ae108
--- /dev/null
+++ b/cpukit/rtems/src/taskexit.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2018 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/rtems/tasks.h>
+#include <rtems/score/threadimpl.h>
+
+void rtems_task_exit( void )
+{
+  Thread_Control  *executing;
+  Per_CPU_Control *cpu_self;
+
+  cpu_self = _Thread_Dispatch_disable();
+  executing = _Per_CPU_Get_executing( cpu_self );
+
+  _Thread_Exit(
+    executing,
+    THREAD_LIFE_TERMINATING | THREAD_LIFE_DETACHED,
+    NULL
+  );
+
+  _Thread_Dispatch_direct( cpu_self );
+  RTEMS_UNREACHABLE();
+}