Core dump getting rid of optimized out

[Bartix]

Hello!

I'm reading the nRF Connect SDK Intermediate course. Specifically, I'm trying to do Exercise 2 - Debugging with core dump and addr2line. I became interested in core dump. I am trying to perform the exercise on the nRF52840 DK board. I created the project from scratch and copied the files. I added a board:

After converting logs etc. I have a problem that my output is not the same as in the course, I mean addr=<optimized out>. Can you tell me how to disable this optimization using KCONFIG?

I tried with CONFIG_NO_OPTIMIZATIONS and CONFIG_DEBUG but the result is the same. Is it possible to receive even more data? How is it different from addr2line?

[runsiv]

Hi 

If you build it with optimize for debug do you get the same behavior? From the looks of it, your compiler found your variables redundant in some way and optimized them away. 

Regards

Runar

[Bartix]

I tested with these flags, the result is the same:

CONFIG_DEBUG=y
CONFIG_NO_OPTIMIZATIONS=y
CONFIG_DEBUG_OPTIMIZATIONS=y

[runsiv]

Are you running an exact copy of the lesson or have you added something to it? I have not run the sample on the NCS 2.6 but I don't expect it to differ that much in terms of  compiler optimization. However your section image looks different to what I recall. I will fire up the sample myself and test. 

Regards

Runar

[Bartix]

I run exactly the code from the inter_less2_exer2_solution sample.

[runsiv]

Thanks, I get the same myself. It must have been something introduced with NCS 2.6 as it worked as a charm when I wrote using NCS 2.5.2 

I will look into it but I can't guarantee that it will get fixed this week as it is easter vacation this week. 

Regards

Runar