Add the macro xSemaphoreTakeFromISR().

Add #error strings if configMAX_SYSCALL_INTERRUPT_PRIORITY is set to 0.
Corrected the prototype of vApplicationStackOverflowHook().
Changed the dimensioning of the buffer declared in prvListTaskWithinSingleList() to make use of the configMAX_TASK_NAME_LEN setting.

Source/include/semphr.h

@@ -554,6 +554,40 @@ typedef xQueueHandle xSemaphoreHandle;
  */
 #define xSemaphoreGiveFromISR( xSemaphore, pxHigherPriorityTaskWoken )			xQueueGenericSendFromISR( ( xQueueHandle ) ( xSemaphore ), NULL, ( pxHigherPriorityTaskWoken ), queueSEND_TO_BACK )
 
+/**
+ * semphr. h
+ * <pre>
+ xSemaphoreTakeFromISR( 
+                          xSemaphoreHandle xSemaphore, 
+                          signed portBASE_TYPE *pxHigherPriorityTaskWoken
+                      )</pre>
+ *
+ * <i>Macro</i> to  take a semaphore from an ISR.  The semaphore must have 
+ * previously been created with a call to vSemaphoreCreateBinary() or 
+ * xSemaphoreCreateCounting().
+ *
+ * Mutex type semaphores (those created using a call to xSemaphoreCreateMutex())
+ * must not be used with this macro.
+ *
+ * This macro can be used from an ISR, however taking a semaphore from an ISR
+ * is not a common operation.  It is likely to only be useful when taking a
+ * counting semaphore when an interrupt is obtaining an object from a resource
+ * pool (when the semaphore count indicates the number of resources available).
+ *
+ * @param xSemaphore A handle to the semaphore being taken.  This is the
+ * handle returned when the semaphore was created.
+ *
+ * @param pxHigherPriorityTaskWoken xSemaphoreTakeFromISR() will set
+ * *pxHigherPriorityTaskWoken to pdTRUE if taking the semaphore caused a task
+ * to unblock, and the unblocked task has a priority higher than the currently
+ * running task.  If xSemaphoreTakeFromISR() sets this value to pdTRUE then
+ * a context switch should be requested before the interrupt is exited.
+ *
+ * @return pdTRUE if the semaphore was successfully taken, otherwise 
+ * pdFALSE
+ */
+#define xSemaphoreTakeFromISR( xSemaphore, pxHigherPriorityTaskWoken )			xQueueReceiveFromISR( ( xQueueHandle ) ( xSemaphore ), NULL, ( pxHigherPriorityTaskWoken ) )
+
 /**
  * semphr. h
  * <pre>xSemaphoreHandle xSemaphoreCreateMutex( void )</pre>

Source/portable/GCC/ARM_CM3/port.c

@@ -79,6 +79,10 @@ FreeRTOS.org versions prior to V4.4.0 did not include this definition. */
 	#define configKERNEL_INTERRUPT_PRIORITY 255
 #endif
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long *) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long *) 0xe000e014 )

Source/portable/GCC/ARM_CM3_MPU/port.c

@@ -78,6 +78,10 @@ task.h is included from an application file. */
 #include "task.h"
 #include "queue.h"
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
 
 /* Constants required to access and manipulate the NVIC. */

Source/portable/GCC/ARM_CM4F/port.c

@@ -76,6 +76,10 @@
 	#error This port can only be used when the project options are configured to enable hardware floating point support.
 #endif
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long * ) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long * ) 0xe000e014 )

Source/portable/IAR/ARM_CM3/port.c

@@ -72,6 +72,10 @@
 #include "FreeRTOS.h"
 #include "task.h"
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long *) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long *) 0xe000e014 )

Source/portable/IAR/ARM_CM4F/port.c

@@ -76,6 +76,10 @@
 	#error This port can only be used when the project options are configured to enable hardware floating point support.
 #endif
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long * ) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long * ) 0xe000e014 )

Source/portable/RVDS/ARM_CM3/port.c

@@ -76,6 +76,10 @@
 	#define configKERNEL_INTERRUPT_PRIORITY 255
 #endif
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long *) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long *) 0xe000e014 )

Source/portable/RVDS/ARM_CM4F/port.c

@@ -76,6 +76,10 @@
 	#error This port can only be used when the project options are configured to enable hardware floating point support.
 #endif
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long *) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long *) 0xe000e014 )

Source/portable/Tasking/ARM_CM4F/port.c

@@ -72,6 +72,10 @@
 #include "FreeRTOS.h"
 #include "task.h"
 
+#if configMAX_SYSCALL_INTERRUPT_PRIORITY == 0
+	#error configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.  See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html
+#endif
+
 /* Constants required to manipulate the NVIC. */
 #define portNVIC_SYSTICK_CTRL		( ( volatile unsigned long * ) 0xe000e010 )
 #define portNVIC_SYSTICK_LOAD		( ( volatile unsigned long * ) 0xe000e014 )

Source/tasks.c

@@ -296,7 +296,7 @@ portTickType xItemValue;																\
 #define prvGetTCBFromHandle( pxHandle ) ( ( ( pxHandle ) == NULL ) ? ( tskTCB * ) pxCurrentTCB : ( tskTCB * ) ( pxHandle ) )
 
 /* Callback function prototypes. --------------------------*/
-extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName );
+extern void vApplicationStackOverflowHook( xTaskHandle pxTask, signed char *pcTaskName );
 extern void vApplicationTickHook( void );
 		
 /* File private functions. --------------------------------*/
@@ -2165,7 +2165,7 @@ tskTCB *pxNewTCB;
 	{
 	volatile tskTCB *pxNextTCB, *pxFirstTCB;
 	unsigned short usStackRemaining;
-	PRIVILEGED_DATA static char pcStatusString[ 50 ];
+	PRIVILEGED_DATA static char pcStatusString[ configMAX_TASK_NAME_LEN + 30 ];
 
 		/* Write the details of all the TCB's in pxList into the buffer. */
 		listGET_OWNER_OF_NEXT_ENTRY( pxFirstTCB, pxList );