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How to capture process id and multi-thread for application from ARM hardware

thiet pv
Note: This was originally posted on 5th September 2011 at http://forums.arm.com

Dear all,
I am make a simulator for ARM (Cortex-a9). I want to capture process id and multi-thread for applications run on Linux kernel by this simulator, but I don't have good idea to capture it. I thought about CP15.c13 (Context PID register) of ARM but it seems not true for PID from kernel. I also think that Arm hardware will manage PID by stack and capture stack pointer will help to capture PID and multi-thread, but it is very difficult for me to understand about it. Please help me to find a solution to capture them.
Thanks and best regard,
Parents
  • Note: This was originally posted on 6th September 2011 at http://forums.arm.com

    Thanks for your answer.
    I also think the same you. The value contex id and pid in kernel is different. But I don't understand the mean of that register. Can you say the purpose of contex id register?
    I learn and I have idea to specify process and multi-thread for applications by capture stack pointer, because each process will be contained on 8KB stack so if we capture stack pointer for each functions of application we can specify the  and multi-thread for an application by hardware.
    Do you think? please send me your comments.
Reply
  • Note: This was originally posted on 6th September 2011 at http://forums.arm.com

    Thanks for your answer.
    I also think the same you. The value contex id and pid in kernel is different. But I don't understand the mean of that register. Can you say the purpose of contex id register?
    I learn and I have idea to specify process and multi-thread for applications by capture stack pointer, because each process will be contained on 8KB stack so if we capture stack pointer for each functions of application we can specify the  and multi-thread for an application by hardware.
    Do you think? please send me your comments.
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