Re: [PATCH] perf regs: Add alpha support

[Magnus Lindholm]

Hi again,

On Mon, Oct 12, 2026 at 7:37 PM Magnus Lindholm <linmag7@xxxxxxxxx> wrote:
> > base-commit: bc01105ed65d15787b2eb93ac26e8624a2139e35
> > change-id: 20261001-alpha-perf-tools-regs-c206a84dec7f
> >
> > Best regards,
> > --
> > Matt Turner <mattst88@xxxxxxxxx>
> >
>
> Thanks for doing this!
>
> Register selection, recording, decoding and user stack dumps tested
> on my ES40. End-to-end DWARF unwinding remains unverified because the
> installed elfutils 0.195 lacks Alpha unwinding support.
>
> Tested-by: Magnus Lindholm <linmag7@xxxxxxxxx>

I just pulled your elfutils patches and ran some more tests.
With your elfutils patches, DWARF unwinding now works on my ES40.
Both existing and fresh perf recordings recovered the expected
leaf -> middle -> outer -> main call chain.

As documented, samples whose CFA depends on r15 stopped at the
sampled frame, since r15 is unavailable. Tested-by tag already given
to this series.

Thanks,
Magnus