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

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Message-ID: <CAP-5=fX6=7Ycp=Su2ahZS1R0wS9s4eozPPcBgMBG25UCaC6uBA@mail.gmail.com>
Date: Fri, 19 Sep 2025 15:10:55 -0700
From: Ian Rogers <irogers@...gle.com>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...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 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

> >
> > - 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
> >