update to 10.4.6 - 7 August 2022 snapshot (LTS)

Author: feilipu

library.properties

@@ -1,5 +1,5 @@
 name=FreeRTOS
-version=10.4.6-6
+version=10.4.6-7
 author=Richard Barry <info@freertos.org>
 maintainer=Phillip Stevens <phillip.stevens@gmail.com>
 sentence=<h3>FreeRTOS Real Time Operating System implemented for AVR (Uno, Nano, Leonardo, Mega).</h3>

readme.md

@@ -13,7 +13,7 @@ My other [AVRfreeRTOS Sourceforge Repository](https://sourceforge.net/projects/a
 
 This library was the genesis of [generalised support for the ATmega platform within FreeRTOS](https://github.com/FreeRTOS/FreeRTOS-Kernel/pull/48).
 
-Over the past few years freeRTOS development has become increasingly 32-bit orientated, with little change or improvement for the 8-bit world. As such I'm treating this 1st January 2022 10.4.6 snapshot as my LTS release.
+Over the past few years freeRTOS development has become increasingly 32-bit orientated, with little change or improvement for the 8-bit world. As such I'm treating this 1st January 2022 10.4.6 snapshot as my LTS release. Bugfixes to 7th August 2022 have been added.
 
 ## General
 
@@ -112,7 +112,6 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://www.blackleg.es/"><img src="https://avatars1.githubusercontent.com/u/4323228" width="100px;" alt=""/><br /><sub><b>Hector Espert</b></sub></a><br /><a title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/Floessie"><img src="https://avatars1.githubusercontent.com/u/10133457" width="100px;" alt=""/><br /><sub><b>Floessie</b></sub></a><br /><a title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/Derekduke"><img src="https://avatars2.githubusercontent.com/u/30068270" width="100px;" alt=""/><br /><sub><b>Derekduke</b></sub></a><br /><a title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/ianfixes"><img src="https://avatars.githubusercontent.com/u/583459" width="100px;" alt=""/><br /><sub><b>Ian</b></sub></a><br /><a title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/balaji"><img src="https://avatars2.githubusercontent.com/u/29356302" width="100px;" alt=""/><br /><sub><b>Balaji.V</b></sub></a><br /><a title="Code">💻</a></td>
   </tr>
 </table>

src/Arduino_FreeRTOS.h

@@ -320,6 +320,10 @@
     #define pcQueueGetName( xQueue )
 #endif
 
+#ifndef configUSE_MINI_LIST_ITEM
+    #define configUSE_MINI_LIST_ITEM    1
+#endif
+
 #ifndef portPOINTER_SIZE_TYPE
     #define portPOINTER_SIZE_TYPE    uint32_t
 #endif
@@ -872,6 +876,12 @@
     #define configUSE_POSIX_ERRNO    0
 #endif
 
+#ifndef configUSE_SB_COMPLETED_CALLBACK
+
+/* By default per-instance callbacks are not enabled for stream buffer or message buffer. */
+    #define configUSE_SB_COMPLETED_CALLBACK    0
+#endif
+
 #ifndef portTICK_TYPE_IS_ATOMIC
     #define portTICK_TYPE_IS_ATOMIC    0
 #endif
@@ -1125,16 +1135,20 @@ struct xSTATIC_LIST_ITEM
 };
 typedef struct xSTATIC_LIST_ITEM StaticListItem_t;
 
-/* See the comments above the struct xSTATIC_LIST_ITEM definition. */
-struct xSTATIC_MINI_LIST_ITEM
-{
-    #if ( configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES == 1 )
-        TickType_t xDummy1;
-    #endif
-    TickType_t xDummy2;
-    void * pvDummy3[ 2 ];
-};
-typedef struct xSTATIC_MINI_LIST_ITEM StaticMiniListItem_t;
+#if ( configUSE_MINI_LIST_ITEM == 1 )
+    /* See the comments above the struct xSTATIC_LIST_ITEM definition. */
+    struct xSTATIC_MINI_LIST_ITEM
+    {
+        #if ( configUSE_LIST_DATA_INTEGRITY_CHECK_BYTES == 1 )
+            TickType_t xDummy1;
+        #endif
+        TickType_t xDummy2;
+        void * pvDummy3[ 2 ];
+    };
+    typedef struct xSTATIC_MINI_LIST_ITEM StaticMiniListItem_t;
+#else /* if ( configUSE_MINI_LIST_ITEM == 1 ) */
+    typedef struct xSTATIC_LIST_ITEM      StaticMiniListItem_t;
+#endif /* if ( configUSE_MINI_LIST_ITEM == 1 ) */
 
 /* See the comments above the struct xSTATIC_LIST_ITEM definition. */
 typedef struct xSTATIC_LIST
@@ -1333,6 +1347,9 @@ typedef struct xSTATIC_STREAM_BUFFER
     #if ( configUSE_TRACE_FACILITY == 1 )
         UBaseType_t uxDummy4;
     #endif
+    #if ( configUSE_SB_COMPLETED_CALLBACK == 1 )
+        void * pvDummy5[ 2 ];
+    #endif
 } StaticStreamBuffer_t;
 
 /* Message buffers are built on stream buffers. */

src/FreeRTOSConfig.h

@@ -100,7 +100,7 @@ to exclude the API function. */
 #define INCLUDE_vTaskDelay                      1
 #define INCLUDE_xTaskGetSchedulerState          0
 #define INCLUDE_xTaskGetIdleTaskHandle          0 // create an idle task handle.
-#define INCLUDE_xTaskGetCurrentTaskHandle       0
+#define INCLUDE_xTaskGetCurrentTaskHandle       1
 #define INCLUDE_uxTaskGetStackHighWaterMark     1
 
 #define configMAX(a,b)  ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a > _b ? _a : _b; })

src/History.txt

@@ -1,12 +1,41 @@
-Changes between FreeRTOS V10.4.5 and V10.4.6
+Changes between FreeRTOS V10.4.6 and TBD
+
+Documentation and download available at https://www.FreeRTOS.org/
+
+	+ Changed uxAutoReload parameter in timer functions to xAutoReload.  The
+	  type is now BaseType_t.  This matches the type of pdTRUE and pdFALSE.
+	  The new function xTimerGetAutoReload() provides the auto-reload state as
+	  a BaseType_t.  The legacy function uxTimerGetAutoReload is retained with the
+	  original UBaseType_t return value.
+	+ Introduce the configUSE_MINI_LIST_ITEM configuration option. When this
+	  option is set to 1, ListItem_t and MiniLitItem_t remain separate types.
+	  However, when configUSE_MINI_LIST_ITEM == 0, MiniLitItem_t and ListItem_t
+	  are both typedefs of the same struct xLIST_ITEM. This addresses some issues
+	  observed when strict-aliasing and link time optimization are enabled.
+	  To maintain backwards compatibility, configUSE_MINI_LIST_ITEM defaults to 1.
+	+ Add the ability to override send and receive completed callbacks for each
+	  instance of a stream buffer or message buffer. The feature can be controlled 
+	  by setting  the configuration option configUSE_SB_COMPLETED_CALLBACK in 
+	  FreeRTOSConfig.h. When the option is set to 1, APIs
+	  xStreamBufferCreateWithCallback() or xStreamBufferCreateStaticWithCallback()
+	  (and likewise APIs from message buffer) can be used to create a stream buffer 
+	  or message buffer instance with application provided callback overrides. When
+	  the option is set to 0, then the default callbacks as defined by
+	  sbSEND_COMPLETED() and sbRECEIVE_COMPLETED() macros are invoked. To maintain 
+	  backwards compatibility, configUSE_SB_COMPLETED_CALLBACK defaults to 0. The 
+	  functionaility is currently not supported for MPU enabled ports.
+
+Changes between FreeRTOS V10.4.5 and FreeRTOS V10.4.6 released November 12 2021
 
 	+ Extend use of the configSTACK_DEPTH_TYPE which enables developers to define
 	  the type used to hold stack counter variables. Defaults to uint16_t
 	  for backward compatibility. #define configSTACK_DEPTH_TYPE to a type
 	  (for example, uint16_t) in FreeRTOSConfig.h to override the default.
 	+ Deleted all references to Coroutines.
-
-Documentation and download available at https://www.FreeRTOS.org/
+	+ Introduce a new config configALLOW_UNPRIVILEGED_CRITICAL_SECTIONS which
+	  enables developers to prevent critical sections from unprivileged tasks.
+	  It defaults to 1 for backward compatibility. Application should set it to
+	  0 to disable critical sections from unprivileged tasks.
 
 Changes between FreeRTOS V10.4.4 and FreeRTOS V10.4.5 released September 10 2021
 
@@ -25,7 +54,7 @@ Changes between FreeRTOS V10.4.4 and FreeRTOS V10.4.5 released September 10 2021
 	  configIDLE_SHOULD_YIELD is set to 0.
 	+ ARMv8-M secure-side port:  Tasks that call secure functions from the
 	  non-secure side of an ARMv8-M MCU (ARM Cortex-M23 and Cortex-M33) have two
-	  contexts – one on the non-secure side and one on the secure-side. Previous
+	  contexts - one on the non-secure side and one on the secure-side. Previous
 	  versions of the FreeRTOS ARMv8-M secure-side ports allocated the structures
 	  that reference secure-side contexts at run time.  Now the structures are
 	  allocated statically at compile time.  The change necessitates the

src/event_groups.c

@@ -101,13 +101,13 @@ static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits,
         configASSERT( pxEventGroupBuffer );
 
         #if ( configASSERT_DEFINED == 1 )
-            {
-                /* Sanity check that the size of the structure used to declare a
-                 * variable of type StaticEventGroup_t equals the size of the real
-                 * event group structure. */
-                volatile size_t xSize = sizeof( StaticEventGroup_t );
-                configASSERT( xSize == sizeof( EventGroup_t ) );
-            } /*lint !e529 xSize is referenced if configASSERT() is defined. */
+        {
+            /* Sanity check that the size of the structure used to declare a
+             * variable of type StaticEventGroup_t equals the size of the real
+             * event group structure. */
+            volatile size_t xSize = sizeof( StaticEventGroup_t );
+            configASSERT( xSize == sizeof( EventGroup_t ) );
+        } /*lint !e529 xSize is referenced if configASSERT() is defined. */
         #endif /* configASSERT_DEFINED */
 
         /* The user has provided a statically allocated event group - use it. */
@@ -119,12 +119,12 @@ static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits,
             vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );
 
             #if ( configSUPPORT_DYNAMIC_ALLOCATION == 1 )
-                {
-                    /* Both static and dynamic allocation can be used, so note that
-                     * this event group was created statically in case the event group
-                     * is later deleted. */
-                    pxEventBits->ucStaticallyAllocated = pdTRUE;
-                }
+            {
+                /* Both static and dynamic allocation can be used, so note that
+                 * this event group was created statically in case the event group
+                 * is later deleted. */
+                pxEventBits->ucStaticallyAllocated = pdTRUE;
+            }
             #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
 
             traceEVENT_GROUP_CREATE( pxEventBits );
@@ -170,12 +170,12 @@ static BaseType_t prvTestWaitCondition( const EventBits_t uxCurrentEventBits,
             vListInitialise( &( pxEventBits->xTasksWaitingForBits ) );
 
             #if ( configSUPPORT_STATIC_ALLOCATION == 1 )
-                {
-                    /* Both static and dynamic allocation can be used, so note this
-                     * event group was allocated statically in case the event group is
-                     * later deleted. */
-                    pxEventBits->ucStaticallyAllocated = pdFALSE;
-                }
+            {
+                /* Both static and dynamic allocation can be used, so note this
+                 * event group was allocated statically in case the event group is
+                 * later deleted. */
+                pxEventBits->ucStaticallyAllocated = pdFALSE;
+            }
             #endif /* configSUPPORT_STATIC_ALLOCATION */
 
             traceEVENT_GROUP_CREATE( pxEventBits );
@@ -204,9 +204,9 @@ EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup,
     configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
     configASSERT( uxBitsToWaitFor != 0 );
     #if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
-        {
-            configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
-        }
+    {
+        configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
+    }
     #endif
 
     vTaskSuspendAll();
@@ -331,9 +331,9 @@ EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup,
     configASSERT( ( uxBitsToWaitFor & eventEVENT_BITS_CONTROL_BYTES ) == 0 );
     configASSERT( uxBitsToWaitFor != 0 );
     #if ( ( INCLUDE_xTaskGetSchedulerState == 1 ) || ( configUSE_TIMERS == 1 ) )
-        {
-            configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
-        }
+    {
+        configASSERT( !( ( xTaskGetSchedulerState() == taskSCHEDULER_SUSPENDED ) && ( xTicksToWait != 0 ) ) );
+    }
     #endif
 
     vTaskSuspendAll();
@@ -645,29 +645,29 @@ void vEventGroupDelete( EventGroupHandle_t xEventGroup )
             configASSERT( pxTasksWaitingForBits->xListEnd.pxNext != ( const ListItem_t * ) &( pxTasksWaitingForBits->xListEnd ) );
             vTaskRemoveFromUnorderedEventList( pxTasksWaitingForBits->xListEnd.pxNext, eventUNBLOCKED_DUE_TO_BIT_SET );
         }
-
-        #if ( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 0 ) )
-            {
-                /* The event group can only have been allocated dynamically - free
-                 * it again. */
-                vPortFree( pxEventBits );
-            }
-        #elif ( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) )
-            {
-                /* The event group could have been allocated statically or
-                 * dynamically, so check before attempting to free the memory. */
-                if( pxEventBits->ucStaticallyAllocated == ( uint8_t ) pdFALSE )
-                {
-                    vPortFree( pxEventBits );
-                }
-                else
-                {
-                    mtCOVERAGE_TEST_MARKER();
-                }
-            }
-        #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
     }
     ( void ) xTaskResumeAll();
+
+    #if ( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 0 ) )
+    {
+        /* The event group can only have been allocated dynamically - free
+         * it again. */
+        vPortFree( pxEventBits );
+    }
+    #elif ( ( configSUPPORT_DYNAMIC_ALLOCATION == 1 ) && ( configSUPPORT_STATIC_ALLOCATION == 1 ) )
+    {
+        /* The event group could have been allocated statically or
+         * dynamically, so check before attempting to free the memory. */
+        if( pxEventBits->ucStaticallyAllocated == ( uint8_t ) pdFALSE )
+        {
+            vPortFree( pxEventBits );
+        }
+        else
+        {
+            mtCOVERAGE_TEST_MARKER();
+        }
+    }
+    #endif /* configSUPPORT_DYNAMIC_ALLOCATION */
 }
 /*-----------------------------------------------------------*/
 

src/event_groups.h

@@ -65,8 +65,6 @@
  * be set and then tested atomically - as is the case where event groups are
  * used to create a synchronisation point between multiple tasks (a
  * 'rendezvous').
- *
- * \defgroup EventGroup
  */
 
 
@@ -243,7 +241,8 @@ typedef TickType_t               EventBits_t;
  *
  * @param xTicksToWait The maximum amount of time (specified in 'ticks') to wait
  * for one/all (depending on the xWaitForAllBits value) of the bits specified by
- * uxBitsToWaitFor to become set.
+ * uxBitsToWaitFor to become set. A value of portMAX_DELAY can be used to block
+ * indefinitely (provided INCLUDE_vTaskSuspend is set to 1 in FreeRTOSConfig.h).
  *
  * @return The value of the event group at the time either the bits being waited
  * for became set, or the block time expired.  Test the return value to know
@@ -377,6 +376,12 @@ EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup,
  * timer task to have the clear operation performed in the context of the timer
  * task.
  *
+ * @note If this function returns pdPASS then the timer task is ready to run
+ * and a portYIELD_FROM_ISR(pdTRUE) should be executed to perform the needed
+ * clear on the event group.  This behavior is different from
+ * xEventGroupSetBitsFromISR because the parameter xHigherPriorityTaskWoken is
+ * not present.
+ *
  * @param xEventGroup The event group in which the bits are to be cleared.
  *
  * @param uxBitsToClear A bitwise value that indicates the bit or bits to clear.
@@ -406,6 +411,7 @@ EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup,
  *      if( xResult == pdPASS )
  *      {
  *          // The message was posted successfully.
+ *          portYIELD_FROM_ISR(pdTRUE);
  *      }
  * }
  * @endcode

src/heap_3.c

@@ -66,13 +66,12 @@ void * pvPortMalloc( size_t xWantedSize )
     ( void ) xTaskResumeAll();
 
     #if ( configUSE_MALLOC_FAILED_HOOK == 1 )
+    {
+        if( pvReturn == NULL )
         {
-            if( pvReturn == NULL )
-            {
-                extern void vApplicationMallocFailedHook( void );
-                vApplicationMallocFailedHook();
-            }
+            vApplicationMallocFailedHook();
         }
+    }
     #endif
 
     return pvReturn;
@@ -81,7 +80,7 @@ void * pvPortMalloc( size_t xWantedSize )
 
 void vPortFree( void * pv )
 {
-    if( pv )
+    if( pv != NULL )
     {
         vTaskSuspendAll();
         {

src/list.c

@@ -54,6 +54,8 @@ void vListInitialise( List_t * const pxList )
      * as the only list entry. */
     pxList->pxIndex = ( ListItem_t * ) &( pxList->xListEnd ); /*lint !e826 !e740 !e9087 The mini list structure is used as the list end to save RAM.  This is checked and valid. */
 
+    listSET_FIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE( &( pxList->xListEnd ) );
+
     /* The list end value is the highest possible value in the list to
      * ensure it remains at the end of the list. */
     pxList->xListEnd.xItemValue = portMAX_DELAY;
@@ -63,6 +65,15 @@ void vListInitialise( List_t * const pxList )
     pxList->xListEnd.pxNext = ( ListItem_t * ) &( pxList->xListEnd );     /*lint !e826 !e740 !e9087 The mini list structure is used as the list end to save RAM.  This is checked and valid. */
     pxList->xListEnd.pxPrevious = ( ListItem_t * ) &( pxList->xListEnd ); /*lint !e826 !e740 !e9087 The mini list structure is used as the list end to save RAM.  This is checked and valid. */
 
+    /* Initialize the remaining fields of xListEnd when it is a proper ListItem_t */
+    #if ( configUSE_MINI_LIST_ITEM == 0 )
+    {
+        pxList->xListEnd.pvOwner = NULL;
+        pxList->xListEnd.pxContainer = NULL;
+        listSET_SECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE( &( pxList->xListEnd ) );
+    }
+    #endif
+
     pxList->uxNumberOfItems = ( UBaseType_t ) 0U;
 
     /* Write known values into the list if