pvPortRealloc Implementation in AVR32_UC3 Port

[liamHowatt]

FreeRTOS-Kernel/portable/GCC/AVR32_UC3/port.c

Line 203 in 4732b96

void * pvPortRealloc( void * pv,

FreeRTOS-Kernel/portable/IAR/AVR32_UC3/port.c

Line 170 in 4732b96

void * pvPortRealloc( void * pv,

These ports were added 17 years ago in this commit 504382b and are the only ones that implement pvPortRealloc. It's implemented here by calling stdlib realloc. I wanted to verify whether this is correct? I think this would only work as expected for heap_3 (it wraps and calls the stdlib malloc and free). For other heaps I think there would be issues since realloc would create a pointer that gets passed to heap_'s vPortFree, which it wouldn't know how to free.

Maybe a good legacy-friendly fix would be to statically assert that heap_3 is being used for the AVR32_UC3 port?

[AniruddhaKanhere]

Hello @liamHowatt,

Your analysis seems correct. This will not work with the heaps managed by FreeRTOS itself. And thus would only work with the heap_3 implementation using the stdlib.