Add volatile qualifier to loop counters used to detect stalled tasks.

Demo/Common/Minimal/QPeek.c

@@ -90,7 +90,7 @@ static void prvHighestPriorityPeekTask( void *pvParameters );
 
 /* Flag that will be latched to pdTRUE should any unexpected behaviour be
 detected in any of the tasks. */
-static portBASE_TYPE xErrorDetected = pdFALSE;
+static volatile portBASE_TYPE xErrorDetected = pdFALSE;
 
 /* Counter that is incremented on each cycle of a test.  This is used to
 detect a stalled task - a test that is no longer running. */

Demo/Common/Minimal/blocktim.c

@@ -82,8 +82,8 @@ to vTaskSuspend/Resume(). */
 static xTaskHandle xSecondary;
 
 /* Used to ensure that tasks are still executing without error. */
-static portBASE_TYPE xPrimaryCycles = 0, xSecondaryCycles = 0;
-static portBASE_TYPE xErrorOccurred = pdFALSE;
+static volatile portBASE_TYPE xPrimaryCycles = 0, xSecondaryCycles = 0;
+static volatile portBASE_TYPE xErrorOccurred = pdFALSE;
 
 /* Provides a simple mechanism for the primary task to know when the
 secondary task has executed. */

Demo/Common/Minimal/countsem.c

@@ -79,7 +79,7 @@ count value set to the maximum, and one with the count value set to zero. */
 
 /* Flag that will be latched to pdTRUE should any unexpected behaviour be
 detected in any of the tasks. */
-static portBASE_TYPE xErrorDetected = pdFALSE;
+static volatile portBASE_TYPE xErrorDetected = pdFALSE;
 
 /*-----------------------------------------------------------*/
 
@@ -122,7 +122,7 @@ typedef struct COUNT_SEM_STRUCT
 } xCountSemStruct;
 
 /* Two structures are defined, one is passed to each test task. */
-static xCountSemStruct xParameters[ countNUM_TEST_TASKS ];
+static volatile xCountSemStruct xParameters[ countNUM_TEST_TASKS ];
 
 /*-----------------------------------------------------------*/
 

Demo/Common/Minimal/dynamic.c

@@ -148,9 +148,9 @@ static unsigned portLONG ulCounter;
 Each complete iteration of the controller task increments this variable
 provided no errors have been found.  The variable maintaining the same value
 is therefore indication of an error. */
-static unsigned portSHORT usCheckVariable = ( unsigned portSHORT ) 0;
-static portBASE_TYPE xSuspendedQueueSendError = pdFALSE;
-static portBASE_TYPE xSuspendedQueueReceiveError = pdFALSE;
+static volatile unsigned portSHORT usCheckVariable = ( unsigned portSHORT ) 0;
+static volatile portBASE_TYPE xSuspendedQueueSendError = pdFALSE;
+static volatile portBASE_TYPE xSuspendedQueueReceiveError = pdFALSE;
 
 /* Queue used by the second test. */
 xQueueHandle xSuspendedTestQueue;

Demo/Common/Minimal/recmutex.c

@@ -113,8 +113,8 @@ static void prvRecursiveMutexPollingTask( void *pvParameters );
 static xSemaphoreHandle xMutex;
 
 /* Variables used to detect and latch errors. */
-static portBASE_TYPE xErrorOccurred = pdFALSE, xControllingIsSuspended = pdFALSE, xBlockingIsSuspended = pdFALSE;
-static unsigned portBASE_TYPE uxControllingCycles = 0, uxBlockingCycles, uxPollingCycles = 0;
+static volatile portBASE_TYPE xErrorOccurred = pdFALSE, xControllingIsSuspended = pdFALSE, xBlockingIsSuspended = pdFALSE;
+static volatile unsigned portBASE_TYPE uxControllingCycles = 0, uxBlockingCycles, uxPollingCycles = 0;
 
 /* Handles of the two higher priority tasks, required so they can be resumed 
 (unsuspended). */