How to implement libc API call tracing in Box64?

[parkjunhyung2021046762]

I'd like to implement an API trace feature in Box64.
For example, strcpy does not require a syscall — it performs only a memory copy internally. However, since it goes through libc's strcpy function, the call should still be recorded in the trace.
Which part of the Box64 source code would need to be modified to implement this kind of libc API call tracing?
Any pointers to the relevant files or wrapper mechanisms would be greatly appreciated.

[ptitSeb]

I'd like to implement an API trace feature in Box64. For example, strcpy does not require a syscall — it performs only a memory copy internally. However, since it goes through libc's strcpy function, the call should still be recorded in the trace. Which part of the Box64 source code would need to be modified to implement this kind of libc API call tracing? Any pointers to the relevant files or wrapper mechanisms would be greatly appreciated.

Have you tried to run with BOX64_LOG=2? I think it just does what you want.

[parkjunhyung2021046762]

Thanks!