Re: [PATCH] plugins: add plugin API to get args passed to binary

[Pierrick Bouvier <pierrick.bouvier@linaro.org>]

On 11/4/24 19:53, Demin Han wrote:
>>
>> It seems that you already have a wrapper script (qemu-risv64.sh). You can
>> replace it and read command line from $@, which contains the command
>> passed to it.
> 
>>>> In the case of llvm-test-suite, you can set TEST_SUITE_RUN_UNDER to a
>>>> wrapper adding a specific plugin, its options, and generating the log
>>>> filename as expected.
>>>
>>> We cant set TEST_SUITE_RUN_UNDER="qemu-riscv64 --plugin
>> /xxx/libxxx.so -L xxx".
>>> We have no any information about binary under test even binary name.
>>> We can get binary name in plugin using qemu_plugin_path_to_binary, but
>> can't solve the issue mentioned in commit msg.
>>>
>>
>> If you pass a script instead, calling the same command, you can get access to
>> command line by reading the content of $@.
>>
> 
> Thanks.
> I think this can work.
> Add a arg to plugin and pass the parsed $@ to it.
> 

It would be the most flexible, as you can do any pre/post transformation 
on input/output. It should provide exactly what you are looking for, 
instead of doing complex output in C in your plugin.

> Regards,
> Demin

Let us know if you found a satisfying solution.

Regards,
Pierrick