Core kernel files:

+ Change how queues are allocated and deleted so only one pvPortMalloc() or vPortFree() is required in place of the previous 2.
+ Where the TCB is allocated in relation to the stack is now dependent on the stack growth direction.  The stack will not grow into the TCB.
+ Introduce the configAPPLICATION_ALLOCATED_HEAP constant to allow the application to provide the array used by heap_4.c as its heap.  This allows the application writer to use qualifiers on the array to, for example, force the memory into faster RAM.

Demo application:
+ Add demo for SAMA5D4 using IAR.

FreeRTOS/Source/portable/GCC/ARM_CA9/port.c

@@ -532,7 +532,6 @@ uint32_t ulReturn;
 
 		FreeRTOS maintains separate thread and ISR API functions to ensure
 		interrupt entry is as fast and simple as possible. */
-
 		configASSERT( portICCRPR_RUNNING_PRIORITY_REGISTER >= ( uint32_t ) ( configMAX_API_CALL_INTERRUPT_PRIORITY << portPRIORITY_SHIFT ) );
 
 		/* Priority grouping:  The interrupt controller (GIC) allows the bits
@@ -551,5 +550,3 @@ uint32_t ulReturn;
 #endif /* configASSERT_DEFINED */
 /*-----------------------------------------------------------*/
 
-
-

FreeRTOS/Source/portable/IAR/MSP430/portmacro.h

@@ -153,6 +153,7 @@ extern void vPortYield( void );
 #define portSTACK_GROWTH			( -1 )
 #define portTICK_PERIOD_MS			( ( TickType_t ) 1000 / configTICK_RATE_HZ )
 #define portNOP()
+#define portPOINTER_SIZE_TYPE		uint16_t
 /*-----------------------------------------------------------*/
 
 /* Task function macros as described on the FreeRTOS.org WEB site. */

FreeRTOS/Source/portable/MSVC-MingW/port.c

@@ -63,10 +63,12 @@
     1 tab == 4 spaces!
 */
 
+/* Standard includes. */
+#include <stdio.h>
+
 /* Scheduler includes. */
 #include "FreeRTOS.h"
 #include "task.h"
-#include <stdio.h>
 
 #ifdef __GNUC__
 	#include "mmsystem.h"

FreeRTOS/Source/portable/MemMang/heap_4.c

@@ -90,7 +90,13 @@ task.h is included from an application file. */
 #define heapBITS_PER_BYTE		( ( size_t ) 8 )
 
 /* Allocate the memory for the heap. */
-static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
+#if( configAPPLICATION_ALLOCATED_HEAP == 1 )
+	/* The application writer has already defined the array used for the RTOS
+	heap - probably so it can be placed in a special segment or address. */
+	extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
+#else
+	static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
+#endif /* configAPPLICATION_ALLOCATED_HEAP */
 
 /* Define the linked list structure.  This is used to link free blocks in order
 of their memory address. */