14:32 <doelie> hi. anyone know if it is possible to do something equivalent to core dumps on linux on a bare bones devices? suppose my firmware knows how to save a memory dump and i have a way to transfer it to my debug pc, is there a way to make gdb use this?

14:35 <PaulFertser> doelie: yes, something like that should be possible, you need to read more documentation on gdb core dumps I think.

14:38 <doelie> i was afraid that was going to be the answer :)

14:38 <doelie> i found this just now: https://docs.zephyrproject.org/latest/guides/debug_tools/coredump.html

14:38 <doelie> so seems there is some example code

14:38 <PaulFertser> doelie: you need to take into account the fact there're many of peripherals involved and you can't save their full state in core dump anyway.

14:38 <doelie> yes i realize

14:38 <doelie> i'm mostly interested in a stack trace

14:39 <doelie> i.e. what exactly happened when my watchdog triggers...

15:09 <karlp> um, jpa has done some stuff in the dsquad firmeware iirc

15:10 <karlp> https://github.com/PetteriAimonen/QuadPawn/blob/master/Runtime/gdb_debug_memory_dump.txt might get you going...

15:11 <karlp> and https://github.com/PetteriAimonen/QuadPawn/blob/master/Runtime/debug.c#L22

15:34 <doelie> karlp, PaulFertser: thanks for the pointers