Add configUSE_CORE_AFFINITY bits check (#776)
* Add core affinity bits check
* Add taskBITS_PER_BYTES
diff --git a/include/FreeRTOS.h b/include/FreeRTOS.h
index 1a6468b..980c9d0 100644
--- a/include/FreeRTOS.h
+++ b/include/FreeRTOS.h
@@ -1165,6 +1165,10 @@
#error configUSE_TASK_PREEMPTION_DISABLE is not supported in single core FreeRTOS
#endif
+#if ( ( configNUMBER_OF_CORES == 1 ) && ( configUSE_CORE_AFFINITY != 0 ) )
+ #error configUSE_CORE_AFFINITY is not supported in single core FreeRTOS
+#endif
+
#if ( ( configNUMBER_OF_CORES > 1 ) && ( configUSE_PORT_OPTIMISED_TASK_SELECTION != 0 ) )
#error configUSE_PORT_OPTIMISED_TASK_SELECTION is not supported in SMP FreeRTOS
#endif
diff --git a/tasks.c b/tasks.c
index 1efb0d3..6b1c7a6 100644
--- a/tasks.c
+++ b/tasks.c
@@ -288,6 +288,8 @@
#define INFINITE_LOOP() 1
#endif
+#define taskBITS_PER_BYTE ( ( size_t ) 8 )
+
/*
* Task control block. A task control block (TCB) is allocated for each task,
* and stores task state information, including a pointer to the task's context
@@ -302,7 +304,7 @@
#endif
#if ( configUSE_CORE_AFFINITY == 1 ) && ( configNUMBER_OF_CORES > 1 )
- UBaseType_t uxCoreAffinityMask; /*< Used to link the task to certain cores. UBaseType_t must have greater than or equal to the number of bits as confNUM_CORES. */
+ UBaseType_t uxCoreAffinityMask; /**< Used to link the task to certain cores. UBaseType_t must have greater than or equal to the number of bits as configNUMBER_OF_CORES. */
#endif
ListItem_t xStateListItem; /**< The list that the state list item of a task is reference from denotes the state of that task (Ready, Blocked, Suspended ). */
@@ -3249,6 +3251,14 @@
{
BaseType_t xReturn;
+ #if ( configUSE_CORE_AFFINITY == 1 ) && ( configNUMBER_OF_CORES > 1 )
+ {
+ /* Sanity check that the UBaseType_t must have greater than or equal to
+ * the number of bits as confNUMBER_OF_CORES. */
+ configASSERT( ( sizeof( UBaseType_t ) * taskBITS_PER_BYTE ) >= configNUMBER_OF_CORES );
+ }
+ #endif /* #if ( configUSE_CORE_AFFINITY == 1 ) && ( configNUMBER_OF_CORES > 1 ) */
+
xReturn = prvCreateIdleTasks();
#if ( configUSE_TIMERS == 1 )
