Event Groups: Convert the 'clear bits from ISR' function into a pended function to fix reentrancy issue.

Event Groups: Ensure the 'wait bits' and 'sync' functions don't return values that still contain some internal control bits.

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

@@ -110,6 +110,8 @@
 	#error configMAX_API_CALL_INTERRUPT_PRIORITY must be greater than ( configUNIQUE_INTERRUPT_PRIORITIES / 2 )
 #endif
 
+/* Some vendor specific files default configCLEAR_TICK_INTERRUPT() in
+portmacro.h. */
 #ifndef configCLEAR_TICK_INTERRUPT
 	#define configCLEAR_TICK_INTERRUPT()
 #endif

FreeRTOS/Source/portable/GCC/ARM_CA9/portmacro.h

@@ -130,6 +130,7 @@ extern void vPortEnterCritical( void );
 extern void vPortExitCritical( void );
 extern uint32_t ulPortSetInterruptMask( void );
 extern void vPortClearInterruptMask( uint32_t ulNewMaskValue );
+extern void vPortInstallFreeRTOSVectorTable( void );
 
 /* These macros do not globally disable/enable interrupts.  They do mask off
 interrupts that have a priority below configMAX_API_CALL_INTERRUPT_PRIORITY. */

FreeRTOS/Source/portable/MPLAB/PIC24_dsPIC/port.c

@@ -184,6 +184,9 @@ UBaseType_t uxCriticalNesting = 0xef;
 
 #ifndef portRESTORE_CONTEXT
 	#error Unrecognised device selected
+
+	/* Note:  dsPIC parts with EDS are not supported as there is no easy way to
+	recover the hardware stacked copies for DOCOUNT, DOHIGH, DOLOW. */
 #endif
 
 /*