Re: [PATCH v3 0/2] Kbuild: DWARF v5 support

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On Thu, Jan 14, 2021 at 10:53 AM Nick Desaulniers
<ndesaulniers@xxxxxxxxxx> wrote:
>
> On Wed, Jan 13, 2021 at 10:18 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> >
> > On Wed, Jan 13, 2021 at 11:25 PM Caroline Tice <cmtice@xxxxxxxxxx> wrote:
> > >
> > > On Tue, Jan 12, 2021 at 3:17 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> > >>
> > >> Unfortunately, I see with CONFIG_DEBUG_INFO_DWARF5=y and
> > >> CONFIG_DEBUG_INFO_BTF=y:
> > >>
> > >> die__process_inline_expansion: DW_TAG_INVALID (0x48) @ <0x3f0dd5a> not handled!
> > >> die__process_function: DW_TAG_INVALID (0x48) @ <0x3f0dd69> not handled!
>
> I can confirm that I see a stream of these warnings when building with
> this patch series applied, and those two configs enabled.
>
> rebuilding with `make ... V=1`, it looks like the call to:
>
> + pahole -J .tmp_vmlinux.btf
>
> is triggering these.
>
> Shall I send a v4 that adds a Kconfig dependency on !DEBUG_INFO_BTF?
> Does pahole have a bug tracker?

FWIW, my distro packages pahole v1.17; rebuilt with ToT v1.19 from
source and also observe the issue.
-- 
Thanks,
~Nick Desaulniers




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