+ 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/GCC/ARM_CA9/port.c

@@ -167,8 +167,8 @@ the CPU itself before modifying certain hardware registers. */
 {																	\
 	portCPU_IRQ_DISABLE();											\
 	portICCPMR_PRIORITY_MASK_REGISTER = portUNMASK_VALUE;			\
-	__asm(	"DSB		\n"											\
-			"ISB		\n" );										\
+	__asm volatile (	"DSB		\n"								\
+						"ISB		\n" );							\
 	portCPU_IRQ_ENABLE();											\
 }