The ebuild for bpftool sets BPFTOOL_VERSION="${MY_PV}" which results in: $bpftool --version bpftool v6.9.2 using libbpf v1.4 features: llvm, skeletons whereas a manually built bpftool from the 6.10 kernel tree says: ./bpftool --version bpftool v7.5.0 using libbpf v1.5 features: llvm, skeletons Apparently this causes confusion when other tools want to inspect the capabilities of bpftool, e.g. as in https://github.com/gentoo/gentoo/pull/37572 Reproducible: Always Steps to Reproduce: 1. build bpftool via ebuild Actual Results: Version mismatch compared to when manually built. Expected Results: Consistent version information.
Upstream's motivation for having a version number != kernel version is described in: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/tools/bpf/bpftool?id=9910a74d6ebf6e35d7adfae665022674fb90ea78 Apparently this happened *after* bpftool was added to the tree and when it started to set BPFTOOL_VERSION="${MY_PV}" from the beginning.
It seems to me the easiest way to fix this is to remove the explicit BPFTOOL_VERSION and just use whatever version bpftool itself wants to advertise based on the built-in-tandem libbpf version, which is statically linked. I'll prepare a PR.
(In reply to Holger Hoffstätte from comment #2) > It seems to me the easiest way to fix this is to remove the explicit > BPFTOOL_VERSION and just use whatever version bpftool itself wants to > advertise based on the built-in-tandem libbpf version, which is statically > linked. There does not seem to be a good way to indicate changes to bpftool itself, since those are not represented in the version number. Open to suggestions how to represent these.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=650e68c2211c27d4d9a12b1e750b6ceb2599220a commit 650e68c2211c27d4d9a12b1e750b6ceb2599220a Author: Holger Hoffstätte <holger@applied-asynchrony.com> AuthorDate: 2024-07-17 12:46:19 +0000 Commit: Jakov Smolić <jsmolic@gentoo.org> CommitDate: 2024-07-19 19:48:29 +0000 dev-util/bpftool: add 7.5.0 from kernel 6.10, no longer set explicit version This avoids confusion wrt. bpftool's advertised capabilities via its --version output. The ebuild will no longer follow the kernel version. Closes: https://bugs.gentoo.org/936209 Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com> Closes: https://github.com/gentoo/gentoo/pull/37591 Signed-off-by: Jakov Smolić <jsmolic@gentoo.org> dev-util/bpftool/Manifest | 2 + dev-util/bpftool/bpftool-7.5.0.ebuild | 124 ++++++++++++++++++++++++++++++++++ 2 files changed, 126 insertions(+)
