Multicore-debugging a single .elf file

[Michael_M0]

Hello,

Im working with:
- Xilinx SDK 2018.3
- Avnet Ultra96 (Xilinx UltraScale+ MPSoC ZU3EG)

I'm writing an application and want all 4 Cortex-A53 to execute (nearly) the same code. First, core 0 starts and initializes the other three cores. However, debugging with the Xilinx System Debugger seems a bit complicated, as I can only select the .elf file for core 0. When I switch to the other three cores, the debug information is not available.

Is there a way to use the same .elf file in one debug session for all 4 Cortex-A53 cores?

Or is even executing the same code by multiple cores a bad idea due to some hardware restrictions I'm not aware of?

Best regards,
Michael

[ericv · Accepted solution]

@Michael_M0 , in the debug, right click on the core you want to load the symbols and you will see you can load the symbols - it's your elf file.

If the L1 caches are set for SMP and the MMU of all cores map the same memory you will be OK..

[Michael_M0]

Hi @ericv ,

Thanks, it worked. But I've expected such a setting in the debugger settings. (edit: It is contained in the debugger settings. How could miss this? my fail.)

Also, I need to take a look if and where this setting is saved, so that it doesn't get lost when I save the project or pass it to someone else.

Thanks so far.

Regards,
Michael