linux-kernel - Re: [PATCH 0/4] Branch stack improvements

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Message-ID: <YiZGtCptGtphNasv@kernel.org>
Date:   Mon, 7 Mar 2022 14:53:56 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     James Clark <james.clark@....com>
Cc:     linux-perf-users@...r.kernel.org, anshuman.khandual@....com,
        german.gomez@....com, leo.yan@...aro.com,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] Branch stack improvements

Em Mon, Mar 07, 2022 at 05:19:13PM +0000, James Clark escreveu:
> I came across a few generic non-Arm issues when reviewing Anshuman's new
> support for branch record buffers on Arm [1].
> 
> The first one is a fix to an error message which is misleading if the
> feature is unavailable and the remaining ones make the branch type field
> visible in perf report and perf script so that it can be debugged or used
> by other tools.
> 
> Applies to perf/core (56dce86819)

Thanks, applied to tmp.perf/core, locally, if someone spots some
problem, there is some time till I run tests and move it to perf/core.

- Arnaldo
 
> Thanks
> James
> 
> [1] https://lore.kernel.org/lkml/1642998653-21377-1-git-send-email-anshuman.khandual@arm.com/
> 
> James Clark (4):
>   perf: Add error message for unsupported branch stack cases
>   perf: Print branch stack entry type in --dump-raw-trace
>   perf: Refactor perf script branch stack printing
>   perf script: Output branch sample type
> 
>  tools/perf/builtin-script.c | 28 +++++++++++++---------------
>  tools/perf/util/evsel.c     |  4 ++++
>  tools/perf/util/session.c   |  5 +++--
>  3 files changed, 20 insertions(+), 17 deletions(-)
> 
> -- 
> 2.28.0

-- 

- Arnaldo