On Tue, Oct 8, 2019 at 8:37 AM Jiri Benc <jbenc@xxxxxxxxxx> wrote: > > On Fri, 4 Oct 2019 18:37:44 +0000, Yonghong Song wrote: > > distro can package bpf/btf uapi headers into libbpf package. > > Users linking with libbpf.a/libbpf.so can use bpf/btf.h with include > > path pointing to libbpf dev package include directory. > > Could this work? > > I don't think it would. Distros have often a policy against bundling > files that are available from one package (in this case, kernel-headers > or similar) in a different package (libbpf). > > The correct way is making the libbpf package depend on a particular > version of kernel-headers (or newer). As I said, I don't see a problem > here. It's not a special situation, it's just usual dependencies. > We ended up switching to auto-generating BPF helpers from UAPI headers w/ hardcoding BPF_FUNC_xxx values in bpf_helpers.h. So there is now no dependency on any specific kernel version there. > Jiri
