On Mon, Nov 16, 2020 at 3:39 AM Alexander Bulekov <alx...@bu.edu> wrote: > > Hello, > I'm trying to collect coverage over the syscalls issued by my process, > as well as the kthreads spawned as a result of these syscalls > (eg coverage over vhost ioctls and the worker kthread). Is there a way > to collect coverage with both KCOV_REMOTE_ENABLE(with common_handle) and > KCOV_ENABLE, simultaneously? > > Based on the code it seems that these two modes are mutually > exclusive within a single task, but I don't think this is mentioned in > the Documentation, so I want to make sure I'm not missing something.
Hi Alex, Yes, it's probably not supported within a single task. The easiest way to verify is to try it ;) It is possible to collect both coverages, but you will need 2 threads (one just to set up remote KCOV). Unless I am missing any fundamental limitations, I would say it would be reasonable to support this within a single task as well.
