Setting the stack register from an exception handler

[Rafsol]

I am planning on writing code in C to allow me to output important product data via a UART when a crash occurs.  To make it simple, I need to be able to set up the stack such that I can call C APIs.  Unfortunately I am not an assembly coder, so I would appreciate it if someone can post code that achieves that.

Thanks in advance

[igorpadykov]

Hi Rafsol

one can look at linux documentation :

https://www.kernel.org/doc/html/latest/x86/exception-tables.html
https://stackoverflow.com/questions/2663456/how-to-write-a-signal-handler-to-catch-sigsegv

Best regards
igor

[Rafsol]

One more piece of information:  it is a hifi3 processor