From 6bf6efdc7e0d886eff182bea9262274bfddadf26 Mon Sep 17 00:00:00 2001
From: Caoruihong <crh.cao@huawei.com>
Date: Fri, 16 Apr 2021 19:24:24 +0800
Subject: [PATCH] add noreturn attribute for LOS_Panic LOS_Reboot and
 HalSysExit

Change-Id: I65bbdd3d60aa754a389f9371649a96483d2a6f8a
---
 kernel/arch/include/los_context.h |  2 +-
 kernel/include/los_task.h         |  4 ++--
 utils/los_compiler.h              | 12 ++++++++++++
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/kernel/arch/include/los_context.h b/kernel/arch/include/los_context.h
index 058d7104..493f33ff 100644
--- a/kernel/arch/include/los_context.h
+++ b/kernel/arch/include/los_context.h
@@ -82,7 +82,7 @@ extern VOID *HalTskStackInit(UINT32 taskID, UINT32 stackSize, VOID *topStack);
  * <ul><li>los_hw.h: the header file that contains the API declaration.</li></ul>
  * @see None.
  */
-LITE_OS_SEC_TEXT_MINOR VOID HalSysExit(VOID);
+LITE_OS_SEC_TEXT_MINOR VOID HalSysExit(VOID) NORETURN;
 
 /* *
  * @ingroup  los_context
diff --git a/kernel/include/los_task.h b/kernel/include/los_task.h
index 73fb1b12..0f0d85c0 100644
--- a/kernel/include/los_task.h
+++ b/kernel/include/los_task.h
@@ -501,8 +501,8 @@ extern VOID LOS_Msleep(UINT32 mSecs);
  * @see
  */
 extern UINT32 LOS_Start(VOID);
-extern VOID LOS_Reboot(VOID);
-extern VOID LOS_Panic(const CHAR *fmt, ...);
+extern VOID LOS_Reboot(VOID) NORETURN;
+extern VOID LOS_Panic(const CHAR *fmt, ...) NORETURN;
 
 
 /**
diff --git a/utils/los_compiler.h b/utils/los_compiler.h
index 94d08417..6d1579ca 100755
--- a/utils/los_compiler.h
+++ b/utils/los_compiler.h
@@ -70,6 +70,10 @@ extern "C" {
 #define CLZ           __iar_builtin_CLZ
 #endif
 
+#ifndef NORETURN
+#define NORETURN      __attribute__ ((__noreturn__))
+#endif
+
 /* for ARM Compiler */
 #elif defined(__CC_ARM)
 
@@ -97,6 +101,10 @@ extern "C" {
 #define CLZ           __clz
 #endif
 
+#ifndef NORETURN
+#define NORETURN      __declspec(noreturn)
+#endif
+
 #pragma anon_unions
 
 /* for GNU Compiler */
@@ -126,6 +134,10 @@ extern "C" {
 #define CLZ           __builtin_clz
 #endif
 
+#ifndef NORETURN
+#define NORETURN      __attribute__ ((__noreturn__))
+#endif
+
 #else
 #error Unknown compiler.
 #endif