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Re: [Qemu-devel] Request for Help (Generate Trace for Individual Instruc
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From: |
Lluís Vilanova |
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Subject: |
Re: [Qemu-devel] Request for Help (Generate Trace for Individual Instructions) |
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Date: |
Wed, 23 Dec 2015 16:41:46 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Junaid Aslam writes:
> Dear Sir
> I am a student in Netherlands TU/e and intend to explore QEMU for a project. I
> need help in understanding how i can trace an individual instruction which is
> translated by TCG. For this moment in am more interested in Guest load store
> and
> Function call instructions. Can you please help me on how i can generate Trace
> file for above mentioned instructions.? I hope to have your reply soon.
Not all pieces are merged upstream to make it easy, but you can already add your
own trace events for that. Look at "docs/tracing.txt" for info on the "tcg"
event property to trace guest instructions. You can then edit the instruction
translation file (e.g., "target-i386/translate.c") to insert calls to your new
events.
Cheers,
Lluis