Version 45.2 is available upstream. Please consider updating! It seems that version 45.2 is available upstream, while the latest version in the Gentoo tree is 3.48.0. You think this warning is false? Read more about it here.
Sysprof is a sampling CPU profiler for Linux that profiles the entire
system, not just a single application.
Sysprof handles shared libraries and applications do not need to be
recompiled. In fact they don't even have to be restarted.