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I have a code running in Ring0 and it is crashing. I do not have any gdb server in my software. It is pure assembly diagnostic software. I am using Corei7

In embedded systems I used a hardware debugger (with Jtag), I can stop the core and check the exception registers... I am not able to find the same process in x86 based boards.

Can someone point out how they do debugging of assembly code without using gdb.... Or if you use a JTAG/HW debugger please let me know as well

thanks

user1875104
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  • Also take a look at the crash utility. I got the impression that any JTAG accessibility is limited on x86 for security reasons. Another option is to use the Linux kernel debugger via a serial port. – Peter L. May 29 '13 at 15:47
  • Yes, if this is actually a linux kernel you can use kgdb. Another option could be to run the code in a VM or even processor simulator, which has the potential to give you even more control than a typical JTAG debug extension would. Of course the cheapest debug method to set up is to really think about the code and then put in logging for suspected causes. – Chris Stratton May 29 '13 at 18:12

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