topic Re: Setting the stack register from an exception handler in i.MX Processors

Setting the stack register from an exception handler

Rafsol — Wed, 03 Mar 2021 20:12:45 GMT

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

Re: Setting the stack register from an exception handler

Rafsol — Wed, 03 Mar 2021 20:22:00 GMT

One more piece of information: it is a hifi3 processor

Re: Setting the stack register from an exception handler

igorpadykov — Thu, 04 Mar 2021 00:27:21 GMT

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