Enable Stack-Overflow Detector

FreeRTOS provides a way to detect stack overflows. We should turn this on, at least for development.

added 1-Necessary 3-Epicardium labels

@swym, would you be willing to look into this?

https://www.freertos.org/Stacks-and-stack-overflow-checking.html

Implemented in 959d4303

closed

@rahix : I'm late to the party... I had a look around independently from this issue a few days ago. I also saw stack overflow protection of FreeRTOS itself at it's... a little wonky tbh. I've also had a look at coretx-m4 spec and it does offer memory protection for regions with a size down to 32bytes. I've been wondering if we could, for tasks that are that are extra protection-worthy, like the dispatcher for example, use static memory for the stack and heap and protected hazard regions before and after the stack so we'd be able to catch stack overflows via hard-faults.

Oh and in case we want to go overboard with this: we might be able to abuse this mechanism to dynamically grow the stack actually :D

mentioned in merge request !45 (merged)