On Sun, Oct 17, 2021 at 10:46 PM Dongliang Mu <mudongliangabcd@gmail.com> wrote:
Hi all,
I am writing to kindly ask one question: is there any tracing mechanism in Linux kernel that can trace all the executed instructions of a user process?
Use gdb -p <pid> to attach to the process your interested in The gdb command: display/i $pc shows you the instruction before it executes. display $pc shows the line of code before n or s executes it.
If this user process is run on different processors, traces of this process on different processors should be also recorded.
This am not too sure about, someone more knowledgeable will probably let us know ( Valdis ? )
Any comment is welcome.
-- My best regards to you.
No System Is Safe! Dongliang Mu
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