Re: only apply tcg plugin in a certain process in system mode

[Alex Bennée]

syheliel syheliel <syheliel@gmail.com> writes:

> I want to use tcg plugin to trace a particular process in system mode. But I 
> find that the current tcg plugin
> will work on all process:
> ```
> ./qemu-system-x86_64 -plugin tests/plugin/libinsn.so \
>     -d plugin ../tests/tcg/multiarch/threadcount
> ```
> above command will apply libinsn.so to all process and generate a large 
> output. How can I get pid or sth else
> to help me only register the tcg plugin to a certain process?

That makes no sense as you are using qemu-system to run a user-mode
binary. If you are running qemu user mode then plugin callbacks are in
the same process context as the guest code so you could simply call
getpid() or equivalent.

>
> - syheliel


-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro