Subject: Re: [RFC PATCH bpf-next 6/8] libbpf: allow specifying map definitions using BTF

From: Stanislav Fomichev <[email-masked]>
Date: Mon, 3 Jun 2019 21:29:02 -0700

> BTF is mandatory for _any_ new feature.
If something is easy to support without asking everyone to upgrade to
a bleeding edge llvm, why not do it?
So much for backwards compatibility and flexibility.

> It's for introspection and debuggability in the first place.
> Good debugging is not optional.
Once llvm 8+ is everywhere, sure, but we are not there yet (I'm talking
about upstream LTS distros like ubuntu/redhat).