Hello. I would like to propose an activity for the BPF track at LSFMMBPF. As in previous editions, the purpose of the activity is to do a quick recap of the current BPF support in both GCC and clang/LLVM and where we stand, to discuss and clarify any particular issue that may be relevant to either compiler, and to collect and address comments, requirements and other feedback from the kernel hackers present. On the GCC BPF side we would like to pay special attention to the topic of divergences, as we are nowadays being bugged not so much by missing features anymore, as it used to be, but by divergences in the support of certain features between GCC and clang. Some of these divergences are trivial to fix just by following clang's behavior as they are found, but others require discussion and agreement. Also, we would like to expand a bit the scope of the discussion to cover a few topics related to the "environment" where the compiled BPF programs are built. Examples of the later are external linking and the inclusion of host standard headers by BPF programs. Thanks!
