linux-kernel - Re: [PATCH v2] perf: unwind: Fix symfs with libdw

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Message-ID: <CAM9d7cgMGrmHf7b+AV7onyifJmXsPvcEg2pZuNRcXMA4F+tYcQ@mail.gmail.com>
Date:   Sat, 1 Jul 2023 18:03:09 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Vincent Whitchurch <vincent.whitchurch@...s.com>
Cc:     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>,
        Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@...s.com
Subject: Re: [PATCH v2] perf: unwind: Fix symfs with libdw

On Sat, Jul 1, 2023 at 11:13 AM Namhyung Kim <namhyung@...nel.org> wrote:
>
> Hello,
>
> On Fri, Jun 30, 2023 at 2:11 AM Vincent Whitchurch
> <vincent.whitchurch@...s.com> wrote:
> >
> > Pass the full path including the symfs (if any) to libdw.  Without this
> > unwinding fails with errors like this when a symfs is used:
> >
> >   unwind: failed with 'No such file or directory'"
> >
> > Signed-off-by: Vincent Whitchurch <vincent.whitchurch@...s.com>

Applied to perf-tools-next, thanks!