Feature/fixing clang gnu compiler warnings (#620)

* Adding in ability to support a library for freertos_config and a custom freertos_kernel_port (#558) * Using single name definition for libraries everywhere. (#558) * Supporting backwards compatibility with FREERTOS_CONFIG_FILE_DIRECTORY (#571) * Removing compiler warnings for GNU and Clang. (#571) * Added in documentation on how to consume from a main project. Added default PORT selection for native POSIX and MINGW platforms. * Only adding freertos_config if it exists. Removing auto generation of it from a FREERTOS_CONFIG_FILE_DIRECTORY. * Fixing clang and gnu compiler warnings. * Adding in project information and how to compile for GNU/clang * Fixing compiler issue with unused variable - no need to declare variable. * Adding in compile warnings for linux builds that kernel is okay with using. * Fixing more extra-semi-stmt clang warnings. * Moving definition of hooks into header files if features are enabled. * Fixing formatting with uncrustify. * Fixing merge conflicts with main merge. * Fixing compiler errors due to merge issues and formatting. * Fixing Line feeds. * Adding 'portNORETURN' into portmacros.h. Other Updates based on PR request * Further clean-up of clang and clang-tidy issues. * Removing compiler specific pragmas from common c files. * Fixing missing lexicon entry and uncrustify formatting changes. * Resolving merge issue multiple defnitions of proto for prvIdleTask * Fixing formatting issues that are not covered by uncrustify. Use clang-tidy instead if you want this level of control. * More uncrustify formatting issues. * Fixing extra bracket in #if statement. --------- Co-authored-by: Gaurav-Aggarwal-AWS <[email protected]>
FreeRTOS · Feb 23, 2023 · 8cd5451 · RodrigoDornelles · Feb 23, 2023 · 8cd5451
1 parent 5d05601
commit 8cd5451
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diff --git a/.github/lexicon.txt b/.github/lexicon.txt
@@ -2458,6 +2458,7 @@ vaninterruptserviceroutine
 vanisr
 vanothertask
 vapplicationcleartimerinterrupt
+vapplicationdaemontaskstartuphook
 vapplicationexceptionregisterdump
 vapplicationfpusafeirqhandler
 vapplicationgetidletaskmemory

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -222,6 +222,47 @@ elseif((FREERTOS_PORT STREQUAL "A_CUSTOM_PORT") AND (NOT TARGET freertos_kernel_
     "       freertos_kernel)")
 endif()
 
+########################################################################
+# Requirements
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+
+########################################################################
+# Overall Compile Options
+# Note the compile option strategy is to error on everything and then
+# Per library opt-out of things that are warnings/errors.
+# This ensures that no matter what strategy for compilation you take, the
+# builds will still occur.
+#
+# Only tested with GNU and Clang.
+# Other options are https://cmake.org/cmake/help/latest/variable/CMAKE_LANG_COMPILER_ID.html#variable:CMAKE_%3CLANG%3E_COMPILER_ID
+# Naming of compilers translation map:
+#
+#   FreeRTOS    | CMake
+#   -------------------
+#   CCS         | ?TBD?
+#   GCC         | GNU, Clang, *Clang Others?
+#   IAR         | IAR
+#   Keil        | ARMCC
+#   MSVC        | MSVC # Note only for MinGW?
+#   Renesas     | ?TBD?
+
+add_compile_options(
+    ### Gnu/Clang C Options
+    $<$<COMPILE_LANG_AND_ID:C,GNU>:-fdiagnostics-color=always>
+    $<$<COMPILE_LANG_AND_ID:C,Clang>:-fcolor-diagnostics>
+
+    $<$<COMPILE_LANG_AND_ID:C,Clang,GNU>:-Wall>
+    $<$<COMPILE_LANG_AND_ID:C,Clang,GNU>:-Wextra>
+    $<$<COMPILE_LANG_AND_ID:C,Clang,GNU>:-Wpedantic>
+    $<$<COMPILE_LANG_AND_ID:C,Clang,GNU>:-Werror>
+    $<$<COMPILE_LANG_AND_ID:C,Clang>:-Weverything>
+
+    # TODO: Add in other Compilers here.
+)
+
+
+########################################################################
 add_subdirectory(portable)
 
 add_library(freertos_kernel STATIC

diff --git a/event_groups.c b/event_groups.c
@@ -69,14 +69,14 @@
 typedef struct EventGroupDef_t
 {
     EventBits_t uxEventBits;
-    List_t xTasksWaitingForBits; /*< List of tasks waiting for a bit to be set. */
+    List_t xTasksWaitingForBits; /**< List of tasks waiting for a bit to be set. */
 
     #if ( configUSE_TRACE_FACILITY == 1 )
         UBaseType_t uxEventGroupNumber;
     #endif
 
     #if ( ( configSUPPORT_STATIC_ALLOCATION == 1 ) && ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) )
-        uint8_t ucStaticallyAllocated; /*< Set to pdTRUE if the event group is statically allocated to ensure no attempt is made to free the memory. */
+        uint8_t ucStaticallyAllocated; /**< Set to pdTRUE if the event group is statically allocated to ensure no attempt is made to free the memory. */
     #endif
 } EventGroup_t;
 
@@ -521,15 +521,15 @@ EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup,
 
 EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup )
 {
-    UBaseType_t uxSavedInterruptStatus;
+    portBASE_TYPE xSavedInterruptStatus;
     EventGroup_t const * const pxEventBits = xEventGroup;
     EventBits_t uxReturn;
 
-    uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
+    xSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();
     {
         uxReturn = pxEventBits->uxEventBits;
     }
-    portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );
+    portCLEAR_INTERRUPT_MASK_FROM_ISR( xSavedInterruptStatus );
 
     return uxReturn;
 } /*lint !e818 EventGroupHandle_t is a typedef used in other functions to so can't be pointer to const. */

diff --git a/include/FreeRTOS.h b/include/FreeRTOS.h
@@ -904,6 +904,10 @@
     #define portDONT_DISCARD
 #endif
 
+#ifndef portNORETURN
+    #define portNORETURN
+#endif
+
 #ifndef configUSE_TIME_SLICING
     #define configUSE_TIME_SLICING    1
 #endif

diff --git a/include/list.h b/include/list.h
@@ -143,20 +143,20 @@
 struct xLIST;
 struct xLIST_ITEM
 {
-    listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE           /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
-    configLIST_VOLATILE TickType_t xItemValue;          /*< The value being listed.  In most cases this is used to sort the list in ascending order. */
-    struct xLIST_ITEM * configLIST_VOLATILE pxNext;     /*< Pointer to the next ListItem_t in the list. */
-    struct xLIST_ITEM * configLIST_VOLATILE pxPrevious; /*< Pointer to the previous ListItem_t in the list. */
-    void * pvOwner;                                     /*< Pointer to the object (normally a TCB) that contains the list item.  There is therefore a two way link between the object containing the list item and the list item itself. */
-    struct xLIST * configLIST_VOLATILE pxContainer;     /*< Pointer to the list in which this list item is placed (if any). */
-    listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE          /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
+    listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE           /**< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
+    configLIST_VOLATILE TickType_t xItemValue;          /**< The value being listed.  In most cases this is used to sort the list in ascending order. */
+    struct xLIST_ITEM * configLIST_VOLATILE pxNext;     /**< Pointer to the next ListItem_t in the list. */
+    struct xLIST_ITEM * configLIST_VOLATILE pxPrevious; /**< Pointer to the previous ListItem_t in the list. */
+    void * pvOwner;                                     /**< Pointer to the object (normally a TCB) that contains the list item.  There is therefore a two way link between the object containing the list item and the list item itself. */
+    struct xLIST * configLIST_VOLATILE pxContainer;     /**< Pointer to the list in which this list item is placed (if any). */
+    listSECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE          /**< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
 };
 typedef struct xLIST_ITEM ListItem_t;                   /* For some reason lint wants this as two separate definitions. */
 
 #if ( configUSE_MINI_LIST_ITEM == 1 )
     struct xMINI_LIST_ITEM
     {
-        listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
+        listFIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE /**< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
         configLIST_VOLATILE TickType_t xItemValue;
         struct xLIST_ITEM * configLIST_VOLATILE pxNext;
         struct xLIST_ITEM * configLIST_VOLATILE pxPrevious;
@@ -171,11 +171,11 @@ typedef struct xLIST_ITEM ListItem_t;                   /* For some reason lint
  */
 typedef struct xLIST
 {
-    listFIRST_LIST_INTEGRITY_CHECK_VALUE      /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
+    listFIRST_LIST_INTEGRITY_CHECK_VALUE      /**< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
     volatile UBaseType_t uxNumberOfItems;
-    ListItem_t * configLIST_VOLATILE pxIndex; /*< Used to walk through the list.  Points to the last item returned by a call to listGET_OWNER_OF_NEXT_ENTRY (). */
-    MiniListItem_t xListEnd;                  /*< List item that contains the maximum possible item value meaning it is always at the end of the list and is therefore used as a marker. */
-    listSECOND_LIST_INTEGRITY_CHECK_VALUE     /*< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
+    ListItem_t * configLIST_VOLATILE pxIndex; /**< Used to walk through the list.  Points to the last item returned by a call to listGET_OWNER_OF_NEXT_ENTRY (). */
+    MiniListItem_t xListEnd;                  /**< List item that contains the maximum possible item value meaning it is always at the end of the list and is therefore used as a marker. */
+    listSECOND_LIST_INTEGRITY_CHECK_VALUE     /**< Set to a known value if configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES is set to 1. */
 } List_t;
 
 /*
@@ -283,7 +283,7 @@ typedef struct xLIST
  * \ingroup LinkedList
  */
 #define listGET_OWNER_OF_NEXT_ENTRY( pxTCB, pxList )                                           \
-    {                                                                                          \
+    do {                                                                                       \
         List_t * const pxConstList = ( pxList );                                               \
         /* Increment the index to the next item and return the item, ensuring */               \
         /* we don't return the marker used at the end of the list.  */                         \
@@ -293,7 +293,7 @@ typedef struct xLIST
             ( pxConstList )->pxIndex = ( pxConstList )->xListEnd.pxNext;                       \
         }                                                                                      \
         ( pxTCB ) = ( pxConstList )->pxIndex->pvOwner;                                         \
-    }
+    } while( 0 )
 
 /*
  * Version of uxListRemove() that does not return a value.  Provided as a slight
@@ -312,7 +312,7 @@ typedef struct xLIST
  * \ingroup LinkedList
  */
 #define listREMOVE_ITEM( pxItemToRemove ) \
-    {                                     \
+    do {                                  \
         /* The list item knows which list it is in.  Obtain the list from the list \
          * item. */                                                              \
         List_t * const pxList = ( pxItemToRemove )->pxContainer;                 \
@@ -327,7 +327,7 @@ typedef struct xLIST
                                                                                  \
         ( pxItemToRemove )->pxContainer = NULL;                                  \
         ( pxList->uxNumberOfItems )--;                                           \
-    }
+    } while( 0 )
 
 /*
  * Inline version of vListInsertEnd() to provide slight optimisation for
@@ -352,7 +352,7 @@ typedef struct xLIST
  * \ingroup LinkedList
  */
 #define listINSERT_END( pxList, pxNewListItem )           \
-    {                                                     \
+    do {                                                  \
         ListItem_t * const pxIndex = ( pxList )->pxIndex; \
                                                           \
         /* Only effective when configASSERT() is also defined, these tests may catch \
@@ -374,7 +374,7 @@ typedef struct xLIST
         ( pxNewListItem )->pxContainer = ( pxList );         \
                                                              \
         ( ( pxList )->uxNumberOfItems )++;                   \
-    }
+    } while( 0 )
 
 /*
  * Access function to obtain the owner of the first entry in a list.  Lists

diff --git a/include/queue.h b/include/queue.h
@@ -1346,9 +1346,9 @@ BaseType_t xQueueGiveFromISR( QueueHandle_t xQueue,
  * @param pvBuffer Pointer to the buffer into which the received item will
  * be copied.
  *
- * @param pxTaskWoken A task may be blocked waiting for space to become
- * available on the queue.  If xQueueReceiveFromISR causes such a task to
- * unblock *pxTaskWoken will get set to pdTRUE, otherwise *pxTaskWoken will
+ * @param pxHigherPriorityTaskWoken A task may be blocked waiting for space to
+ * become available on the queue.  If xQueueReceiveFromISR causes such a task
+ * to unblock *pxTaskWoken will get set to pdTRUE, otherwise *pxTaskWoken will
  * remain unchanged.
  *
  * @return pdTRUE if an item was successfully received from the queue,

diff --git a/include/stack_macros.h b/include/stack_macros.h
@@ -87,7 +87,7 @@
 #if ( ( configCHECK_FOR_STACK_OVERFLOW > 1 ) && ( portSTACK_GROWTH < 0 ) )
 
     #define taskCHECK_FOR_STACK_OVERFLOW()                                                            \
-    {                                                                                                 \
+    do {                                                                                              \
         const uint32_t * const pulStack = ( uint32_t * ) pxCurrentTCB->pxStack;                       \
         const uint32_t ulCheckValue = ( uint32_t ) 0xa5a5a5a5;                                        \
                                                                                                       \
@@ -98,7 +98,7 @@
         {                                                                                             \
             vApplicationStackOverflowHook( ( TaskHandle_t ) pxCurrentTCB, pxCurrentTCB->pcTaskName ); \
         }                                                                                             \
-    }
+    } while( 0 )
 
 #endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */
 /*-----------------------------------------------------------*/

diff --git a/include/task.h b/include/task.h
@@ -658,7 +658,7 @@ typedef enum
  *
  * @param xTask The handle of the task being updated.
  *
- * @param xRegions A pointer to a MemoryRegion_t structure that contains the
+ * @param[in] pxRegions A pointer to a MemoryRegion_t structure that contains the
  * new memory region definitions.
  *
  * Example usage:
@@ -1667,7 +1667,7 @@ configSTACK_DEPTH_TYPE uxTaskGetStackHighWaterMark2( TaskHandle_t xTask ) PRIVIL
 #endif
 
 
-#if  ( configUSE_TICK_HOOK > 0 )
+#if  ( configUSE_TICK_HOOK != 0 )
 
 /**
  *  task.h

diff --git a/include/timers.h b/include/timers.h
@@ -1361,6 +1361,20 @@ BaseType_t xTimerGenericCommand( TimerHandle_t xTimer,
 
 #endif
 
+#if ( configUSE_DAEMON_TASK_STARTUP_HOOK != 0 )
+
+/**
+ *  timers.h
+ * @code{c}
+ * void vApplicationDaemonTaskStartupHook( void );
+ * @endcode
+ *
+ * This hook function is called form the timer task once when the task starts running.
+ */
+    void vApplicationDaemonTaskStartupHook( void );
+
+#endif
+
 /* *INDENT-OFF* */
 #ifdef __cplusplus
     }

diff --git a/portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portmacro.h b/portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M23"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 #if( configTOTAL_MPU_REGIONS == 16 )

diff --git a/portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portmacro.h b/portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M23"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 #if( configTOTAL_MPU_REGIONS == 16 )

diff --git a/portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portmacro.h b/portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M33"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**

diff --git a/portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portmacro.h b/portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M33"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**

diff --git a/portable/ARMv8M/non_secure/portable/GCC/ARM_CM55/portmacro.h b/portable/ARMv8M/non_secure/portable/GCC/ARM_CM55/portmacro.h
@@ -55,6 +55,7 @@
  */
 #define portARCH_NAME                       "Cortex-M55"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**

diff --git a/portable/ARMv8M/non_secure/portable/GCC/ARM_CM85/portmacro.h b/portable/ARMv8M/non_secure/portable/GCC/ARM_CM85/portmacro.h
@@ -55,6 +55,7 @@
  */
 #define portARCH_NAME                       "Cortex-M85"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**

diff --git a/portable/GCC/ARM_CM0/portmacro.h b/portable/GCC/ARM_CM0/portmacro.h
@@ -77,6 +77,7 @@
     #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
     #define portBYTE_ALIGNMENT    8
     #define portDONT_DISCARD      __attribute__( ( used ) )
+    #define portNORETURN         __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 

diff --git a/portable/GCC/ARM_CM23/non_secure/portmacro.h b/portable/GCC/ARM_CM23/non_secure/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M23"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 #if( configTOTAL_MPU_REGIONS == 16 )

diff --git a/portable/GCC/ARM_CM23_NTZ/non_secure/portmacro.h b/portable/GCC/ARM_CM23_NTZ/non_secure/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M23"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 #if( configTOTAL_MPU_REGIONS == 16 )

diff --git a/portable/GCC/ARM_CM3/portmacro.h b/portable/GCC/ARM_CM3/portmacro.h
@@ -77,6 +77,7 @@
     #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
     #define portBYTE_ALIGNMENT    8
     #define portDONT_DISCARD      __attribute__( ( used ) )
+    #define portNORETURN         __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /* Scheduler utilities. */

diff --git a/portable/GCC/ARM_CM33/non_secure/portmacro.h b/portable/GCC/ARM_CM33/non_secure/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M33"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**

diff --git a/portable/GCC/ARM_CM33_NTZ/non_secure/portmacro.h b/portable/GCC/ARM_CM33_NTZ/non_secure/portmacro.h
@@ -50,6 +50,7 @@
  */
 #define portARCH_NAME                       "Cortex-M33"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**

diff --git a/portable/GCC/ARM_CM3_MPU/portmacro.h b/portable/GCC/ARM_CM3_MPU/portmacro.h
@@ -113,6 +113,7 @@
     #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
     #define portBYTE_ALIGNMENT    8
     #define portDONT_DISCARD      __attribute__( ( used ) )
+    #define portNORETURN         __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /* SVC numbers for various services. */

diff --git a/portable/GCC/ARM_CM4F/portmacro.h b/portable/GCC/ARM_CM4F/portmacro.h
@@ -80,6 +80,7 @@
     #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
     #define portBYTE_ALIGNMENT    8
     #define portDONT_DISCARD      __attribute__( ( used ) )
+    #define portNORETURN         __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /* Scheduler utilities. */

diff --git a/portable/GCC/ARM_CM4_MPU/portmacro.h b/portable/GCC/ARM_CM4_MPU/portmacro.h
@@ -203,6 +203,7 @@ typedef struct MPU_SETTINGS
 #define portTICK_PERIOD_MS    ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
 #define portBYTE_ALIGNMENT    8
 #define portDONT_DISCARD      __attribute__( ( used ) )
+#define portNORETURN         __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /* SVC numbers for various services. */

diff --git a/portable/GCC/ARM_CM55/non_secure/portmacro.h b/portable/GCC/ARM_CM55/non_secure/portmacro.h
@@ -55,6 +55,7 @@
  */
 #define portARCH_NAME                       "Cortex-M55"
 #define portDONT_DISCARD                    __attribute__( ( used ) )
+#define portNORETURN                       __attribute__( ( noreturn ) )
 /*-----------------------------------------------------------*/
 
 /**