Andrii Nakryiko <andrii.nakry...@gmail.com> writes: > Some of the most important APIs of libbpf are, arguably, > bpf_object__open() and bpf_object__load(). They accept a BPF ELF file, > do some preprocessing and in the end load BPF instructions into the > kernel for verification. But while API doesn't change across libbpf > versions, BPF-side code features supported changes quite a lot.
Yes, which means that nothing has to change in iproute2 *at all* to get this; not the version, not even a rebuild: just update the system libbpf, and you'll automatically gain all these features. How is that an argument for *not* linking dynamically? It's a user *benefit* to not have to care about the iproute2 version, but only have to care about keeping libbpf up to date. I mean, if iproute2 had started out by linking dynamically against libbpf (setting aside the fact that libbpf didn't exist back then), we wouldn't even be having this conversation: In that case its support for new features in the BPF format would just automatically have kept up along with the rest of the system as the library got upgraded... -Toke
