Re: pahole and libdwarves linking/versioning issues

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On November 10, 2020 9:14:16 PM GMT-03:00, Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx> wrote:
>Hey Arnaldo,
>
>We use pahole pretty extensively here at Facebook, as you might
>imagine, given it's a required tool to compile Linux kernel with BTF.
>
>There are a few problems we periodically run into, all of which seems
>to be related to the fact that pahole is just a thin wrapper binary on
>top of libdwarves shared library.
>
>One very common problem is when we upgrade the dwarves package from
>one minor version to another one. Typically people would do
>
>yum upgrade dwarves


I'll reply to this more thoroughly tomorrow morning.

But yes, the spec file um the pahole git repo has a explicit Requires: tag to ask for the latest libdwarves.

- Arnaldo

>
>And that would succeed to update the dwarves package (say 1.13 to
>1.16). But when you run
>
>pahole --version
>
>You'll still see 1.13 (and still have 1.13 functionality, of

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.




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