Re: [Perfctr-devel] [ptools-perfapi] New release of libpfm for papi-7.0.1?

[Stephane E. <er...@go...>]

Hi Will,


On Mon, Mar 13, 2023 at 7:28 PM William Cohen <wc...@re...> wrote:

> Hi,
>
> I was taking a look at putting the new papi-7.0.1 into Fedora rawhide,
> https://bugzilla.redhat.com/show_bug.cgi?id=2177906 .  Fedora build a
> separate version of libpfm rpms rather than using the libpfm source bundled
> with papi.  PAPI-7.0.1 is dependent on the following patch in the libpfm
> git repo that are not in a released version of libpfm which updates the
> data struct to match newer kernel.
>
> commit 8c606bc2f2d186c2797d9f013283c9150f594f93
> Author: Masahiko, Yamada <yam...@fu...>
> Date:   Tue Sep 20 14:04:31 2022 +0900
>
>     update perf_event.h to Linux 5.18
>
>     The perf_events interface for directly accessing PMU registers
>     from userspace for arm64 has been formally implemented in the
>     kernel v5.18.
>
>     Update perf_event.h header used to build perf_event based examples.
>
>     Signed-off-by: Masahiko Yamada <yam...@fu...>
>
> Would it be possible to have an updated version of libpfm releasedr?  The
> alternative would be to build a version of libpfm with the patch in Fedora
> to allow papi-7.0.1 to build, but having a libpfm with all recent patches
> would be cleaner.
>
> I can make a new release but I am not sure I understand why it will solve
your problem.
Thanks.


> Thanks,
>
> -Will
>
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