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SubjectRe: ANNOUNCE: pahole v1.23 (BTF tags and alignment inference)
Em Tue, Dec 14, 2021 at 02:56:16PM -0700, Nathan Chancellor escreveu:
> Hi Arnaldo,
>
> On Wed, Dec 08, 2021 at 10:54:56AM -0300, Arnaldo Carvalho de Melo wrote:
> > - Initial support for DW_TAG_skeleton_unit, so far just suggest looking up a
> > matching .dwo file to be used instead. Automagically doing this is in the
> > plans for a future release.
>
> This change [1] appears to break building on older distributions for me,
> which I use in containers for access to older versions of GCC. I see the
> error with Debian Stretch and Ubuntu Xenial, which have an older
> libelf-dev. Is this expected? I don't mind sticking with 1.22 for
> those, I just want to be sure!

Nope, not expected, I'll reproduce here, fix and push, thanks for the
report.

- Arnaldo

> /tmp/dwarves-1.23/dwarf_loader.c: In function 'die__process':
> /tmp/dwarves-1.23/dwarf_loader.c:2529:13: error: 'DW_TAG_skeleton_unit' undeclared (first use in this function)
> if (tag == DW_TAG_skeleton_unit) {
> ^
>
> [1]: https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=0135ccd632796ab3aff65b7c99b374c4682c2bcf
>
> Cheers,
> Nathan

--

- Arnaldo

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