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Single stepping with ARM Realview Debug

Ejaz Ahmed
Note: This was originally posted on 22nd September 2012 at http://forums.arm.com

Hi,

I am working on ARM Versatile Express Cortex A9x4 (Quad core) board. I am using RealView ICE and Realview Debugger. Application was built with command line tools from Mentor Graphics which utilizes Nucleus SMP kernel GNU tool chain. Current build configuration uses two cores only. I wanted to navigate through a critical step of source for individual core (one core should be stopped while stepping through the other is being performed). To accomplish this, I have disabled synchronization of step option in synchronization control (snapshot attached) . The application runs successfully as long as no break-point is enabled. Whenever I enable a break point, the application halts there and does not perform single stepping. Even if I disable break-points later in that session , it still remains there unless and until I reset the cores and disconnect and re-connect them.

Can anyone suggest some solution?

I have gone through the documentation of Realview Debug. Unfortunately, it covers too little in multicore domain. If anyone has link to such any document, please share it with me.

Regards,

Ejaz
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  • Note: This was originally posted on 24th September 2012 at http://forums.arm.com


    Sorry, I can't help you myself.  If you get no response here, you should probably try the ARM Support address: support-sw@arm.com.


    Hi Scott,

    Thanks for guiding me to ARM support. I was able to do single stepping myself without synchronizing cores. However, it should run in synchronizing as well. Currently I am getting this warning whenever I try to connect the cores.


    Attached to stopped device
    Warning: No stack/heap or top_of_memory defined - setting top_of_memory to 0x00080000


    If you know about that? I have also changed the probe but error still persists.

    This warning is preventing me to synchronize cores.

    Let me wait for some response in forum for few days. I will turn to ARM support later.
Reply
  • Note: This was originally posted on 24th September 2012 at http://forums.arm.com


    Sorry, I can't help you myself.  If you get no response here, you should probably try the ARM Support address: support-sw@arm.com.


    Hi Scott,

    Thanks for guiding me to ARM support. I was able to do single stepping myself without synchronizing cores. However, it should run in synchronizing as well. Currently I am getting this warning whenever I try to connect the cores.


    Attached to stopped device
    Warning: No stack/heap or top_of_memory defined - setting top_of_memory to 0x00080000


    If you know about that? I have also changed the probe but error still persists.

    This warning is preventing me to synchronize cores.

    Let me wait for some response in forum for few days. I will turn to ARM support later.
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