wangchdo opened a new pull request, #17043:
URL: https://github.com/apache/nuttx/pull/17043
Provide task stack overflow check mechanism in task context switch,
and add porting on arm arch
*Note: Please adhere to [Contributing
Guidelines](https://github.com/apache/nuttx/blob/master/CONTRIBUTING.md).*
## Summary
Provide a task stack overflow check mechanism during task context switch.
This method is based on stack coloration and a threshold. The stack
overflow check will
fail if fewer than this number of bytes of unused stack remain after the
stack coloration pattern
## Impact
Add a stack overflow check mechanism to scheduler, this function is default
disabled. If it is enabled,
some performance load will be introduced during task switch.
## Testing
**enable it on board fvp-armv8r-aarch32**
<img width="868" height="624" alt="image"
src="https://github.com/user-attachments/assets/f6c072ff-caac-436d-aaba-df752a78c526";
/>
**ostest passed**
<img width="787" height="558" alt="image"
src="https://github.com/user-attachments/assets/540fac73-960e-445a-8efa-1d67d6e01527";
/>
**Trigger a stack overflow in hello world demo**
<img width="829" height="761" alt="image"
src="https://github.com/user-attachments/assets/21ac36ed-4b0b-4141-9fd7-a24076e12c45";
/>
**stack overflow detected**
<img width="1010" height="769" alt="image"
src="https://github.com/user-attachments/assets/d316fddc-ea8a-4c80-ab35-1e88ba5bc683";
/>
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