linux-kernel - Re: [RFC PATCH] libtraceevent: Increase libtraceevent logging when verbose

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Message-ID: <20210610154759.1ef958f0@oasis.local.home>
Date:   Thu, 10 Jun 2021 15:47:59 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-trace-users@...r.kernel.org,
        Tzvetomir Stoyanov <tz.stoyanov@...il.com>, eranian@...gle.com,
        Michael Petlan <mpetlan@...hat.com>
Subject: Re: [RFC PATCH] libtraceevent: Increase libtraceevent logging when
 verbose

On Thu, 10 Jun 2021 21:08:32 +0200
Jiri Olsa <jolsa@...hat.com> wrote:

> Michael did the libtraceevent detection and dynamic linking support:
>   https://lore.kernel.org/linux-perf-users/20210428092023.4009-1-mpetlan@redhat.com/

Oh cool! I missed this.

> 
> I think we should have that in Fedora/RHEL rpms already, or it's on the way.
> 
> The detection code could be change to contain things we need.

Sounds great!

But the next thing we should use is libtracefs, to simplify some of the
other logic, like finding the event files, and even reading the
error_log file when a kprobe_event fails.

-- Steve