linux-kernel - Re: [ALMOST ready] Re: [PATCH 2/3] perf build: Use libtraceevent from the system

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Message-ID: <Y5DFpn4R6p+vnBRz@kernel.org>
Date:   Wed, 7 Dec 2022 13:56:06 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        bpf@...r.kernel.org, Stephane Eranian <eranian@...gle.com>
Subject: Re: [ALMOST ready] Re: [PATCH 2/3] perf build: Use libtraceevent
 from the system

Em Wed, Dec 07, 2022 at 01:02:09PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Wed, Dec 07, 2022 at 09:39:58AM -0500, Steven Rostedt escreveu:
> > On Wed, 7 Dec 2022 11:31:38 -0300
> > Arnaldo Carvalho de Melo <acme@...nel.org> wrote:

> > > No distro I tested so far has a package for libtracevent in is default
> > > repositories:

> > Not sure what you mean by "default repository".

> > At least on Debian testing, I have libtraceevent-dev available.

> Right, I'm talking about non-bleeding edge, distros that are still
> supported. I'm still checking, fedora is ok all the way back to 33, wrt
> having libtraceevent available.

And in some places libtraceevent is available, but then:

  73     6.88 ubuntu:22.04                  : FAIL gcc version 11.3.0 (Ubuntu 11.3.0-1ubuntu1~22.04)
    /git/perf-6.1.0-rc6/tools/perf/util/evsel.c: In function ‘evsel__rawptr’:
    /git/perf-6.1.0-rc6/tools/perf/util/evsel.c:2787:36: error: ‘TEP_FIELD_IS_RELATIVE’ undeclared (first use in this function); did you mean ‘TEP_FIELD_IS_FLAG’?
     2787 |                 if (field->flags & TEP_FIELD_IS_RELATIVE)
          |                                    ^~~~~~~~~~~~~~~~~~~~~
          |                                    TEP_FIELD_IS_FLAG

Still need to look how to cover these.

- Arnaldo