FYI: CI regression on big-endian arch (s390) after recent pahole changes

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Hi Arnaldo, Alan,

After recent pahole changes [1] BPF CI fails for s390 [2].
Song Liu identified that there is a mismatch between endianness of BTF
in .BTF and .BTF.base sections.

I think that the correct fix should be on libbpf side,
where btf__distill_base() should inherit endianness from source BTF.
If there are any plans for new pahole release,
could you please postpone it until current issue is resolved?
(I should have a fix for this thing by tomorrow).

Best regards,
Eduard

[1] c7b1f6a29ba1 ("btf_encoder: Add "distilled_base" BTF feature to split BTF generation")
[2] https://github.com/kernel-patches/bpf/actions/runs/10622763027/job/29447973415






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