[TSAN] std::call_once interceptor for linux

I found commit, which introduced call_once interceptor for MacOs, but as I understand the problem, described in this commit (i.e. tsan can’t see call to __call_once inside uninstrumented libc++) is also present on other platforms, e.g. linux.
So I’m wondering, why there is no same interceptor for linux platform? Is it expected to work as is?

Thanks in advance.