linux-kernel - Re: [PATCH v1 5/5] perf bpf-filter: Add YYDEBUG

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Message-ID: <CAM9d7cjj9V+tmrF_=8YgnxiLVGcGYKLZ-4pNgEgQM+3XSCHrsQ@mail.gmail.com>
Date:   Mon, 11 Sep 2023 23:00:36 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Ian Rogers <irogers@...gle.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>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        James Clark <james.clark@....com>,
        Gaosheng Cui <cuigaosheng1@...wei.com>,
        Rob Herring <robh@...nel.org>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH v1 5/5] perf bpf-filter: Add YYDEBUG

On Mon, Sep 11, 2023 at 10:06 AM Ian Rogers <irogers@...gle.com> wrote:
>
> YYDEBUG enables line numbers and other error helpers in the generated
> bpf-filter-bison.c. Conditionally enabled only for debug builds.
>
> Signed-off-by: Ian Rogers <irogers@...gle.com>

Acked-by: Namhyung Kim <namhyung@...nel.org>

Thanks,
Namhyung


> ---
>  tools/perf/util/bpf-filter.y | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/tools/perf/util/bpf-filter.y b/tools/perf/util/bpf-filter.y
> index 5dfa948fc986..0e4d6de3c2ad 100644
> --- a/tools/perf/util/bpf-filter.y
> +++ b/tools/perf/util/bpf-filter.y
> @@ -3,6 +3,10 @@
>
>  %{
>
> +#ifndef NDEBUG
> +#define YYDEBUG 1
> +#endif
> +
>  #include <stdio.h>
>  #include <string.h>
>  #include <linux/compiler.h>
> --
> 2.42.0.283.g2d96d420d3-goog
>