+ New feature added: Task notifications.

+ Optimise Cortex-M4F ports by inlining some critical section macros.
+ Original ports used a #define to set the path to portmacro.h - that method has been obsolete for years and now all the old definitions have been moved into a separate header files called deprecated_definitions.h.
+ Cortex-M port now check the active vector bits against 0xff when determining if a function is called from an interrupt - previously only a subset of the bits (0x1f) were checked.
+ Add in new standard demo/test files TaskNotify.c/h and include the files in the simulator demos.
+ Update trace recorder code, and some demos to use the new version (more to do).
+ Introduce uxTaskPriorityGetFromISR().
+ Minor typo corrections.
+ Update MingW simulator demo to match the MSVC simulator demo.

FreeRTOS/Source/portable/IAR/ARM_CM4F/portasm.s

@@ -72,8 +72,6 @@
 	EXTERN vTaskSwitchContext
 
 	PUBLIC xPortPendSVHandler
-	PUBLIC ulPortSetInterruptMask
-	PUBLIC vPortClearInterruptMask
 	PUBLIC vPortSVCHandler
 	PUBLIC vPortStartFirstTask
 	PUBLIC vPortEnableVFP
@@ -102,6 +100,8 @@ xPortPendSVHandler:
 	stmdb sp!, {r3}
 	mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
 	msr basepri, r0
+	dsb
+	isb
 	bl vTaskSwitchContext
 	mov r0, #0
 	msr basepri, r0
@@ -134,20 +134,6 @@ xPortPendSVHandler:
 
 /*-----------------------------------------------------------*/
 
-ulPortSetInterruptMask:
-	mrs r0, basepri
-	mov r1, #configMAX_SYSCALL_INTERRUPT_PRIORITY
-	msr basepri, r1
-	bx r14
-
-/*-----------------------------------------------------------*/
-
-vPortClearInterruptMask:
-	msr basepri, r0
-	bx r14
-
-/*-----------------------------------------------------------*/
-
 vPortSVCHandler:
 	/* Get the location of the current TCB. */
 	ldr	r3, =pxCurrentTCB