On Thu, Apr 27, 2023 at 9:59 AM Stanislav Fomichev <sdf@xxxxxxxxxx> wrote: > > RE unsupported C++: we are not really subscribing to support it here, right? > Just making it easier for the folks who want to experiment with it to > try it out. I think short term experiments should be out of tree. The experiments that lead to a long term goal can certainly be in tree. In that sense if your team is really going to invest into making c++ a supported front-end for bpf than this is a good first step. Such c++ flavor will have restrictions (like no virtual calls and exceptions) and it's ok. The basic things like CO-RE has to work though. In other words if there is a draft patch for llvm to enable existing attrs for c++ then this patch would be fine. This patch alone with no effort made on llvm side should stay out of tree.