linux-kernel - Re: [PATCH 0/2] LIBBPF

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Message-ID: <aN0t6Bcd8MKmeBn7@x1>
Date: Wed, 1 Oct 2025 10:34:32 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Namhyung Kim <namhyung@...nel.org>, Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	James Clark <james.clark@...aro.org>, Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Clark Williams <williams@...hat.com>, linux-kernel@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	Andrii Nakryiko <andrii@...nel.org>
Subject: Re: [PATCH 0/2] LIBBPF_DYNAMIC=1 fixes

On Tue, Sep 30, 2025 at 01:10:59PM -0700, Ian Rogers wrote:
> On Fri, Sep 19, 2025 at 3:10 PM Ian Rogers <irogers@...gle.com> wrote:
> >
> > On Fri, Sep 19, 2025 at 2:58 PM Namhyung Kim <namhyung@...nel.org> wrote:
> > >
> > > On Fri, Sep 19, 2025 at 06:06:52PM -0300, Arnaldo Carvalho de Melo wrote:
> > > > Hi,
> > > >
> > > >       Please take a look, noticed after processing a patch from Ian
> > > > for another such issue, on a hurry now, haven't checked when that
> > > > emit_string was introduced.
> >
> > emit_strings was added in Linux v6.17 and libbpf was tagged as version
> > 1.7 prior to that.
> >
> > Thanks,
> > Ian
> 
> Ping.
> 
> When this lands I can rebase:
> https://lore.kernel.org/lkml/20250830053549.1966520-1-irogers@google.com/
> on it.

I'm testing this now.

- Arnaldo
 
> Thanks,
> Ian
> 
> > > >
> > > > - Arnaldo
> > > >
> > > > Arnaldo Carvalho de Melo (2):
> > > >   perf bpf: Move the LIBBPF_CURRENT_VERSION_GEQ macro to bpf-utils.h
> > > >   perf bpf: Check libbpf version to use
> > > >     btf_dump_type_data_opts.emit_strings
> > >
> > > Acked-by: Namhyung Kim <namhyung@...nel.org>
> > >
> > > Thanks,
> > > Namhyung
> > >
> > > >
> > > >  tools/perf/util/bpf-event.c  | 2 ++
> > > >  tools/perf/util/bpf-filter.c | 5 +----
> > > >  tools/perf/util/bpf-utils.h  | 5 +++++
> > > >  3 files changed, 8 insertions(+), 4 deletions(-)
> > > >
> > > > --
> > > > 2.51.0
> > > >