linux-kernel - Re: [PATCH] perf script: Always allow field 'data

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Message-ID: <Yl15fnAwfu3pDg2d@kernel.org>
Date:   Mon, 18 Apr 2022 11:45:18 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Adrian Hunter <adrian.hunter@...el.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>,
        James Clark <james.clark@....com>,
        German Gomez <german.gomez@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf script: Always allow field 'data_src' for auxtrace

Em Sun, Apr 17, 2022 at 07:48:37PM +0800, Leo Yan escreveu:
> If use command 'perf script -F,+data_src' to dump memory samples with
> Arm SPE trace data, it reports error:
> 
>   # perf script -F,+data_src
>   Samples for 'dummy:u' event do not have DATA_SRC attribute set. Cannot print 'data_src' field.
> 
> This is because the 'dummy:u' event is absent DATA_SRC bit in its sample
> type, so if a file contains AUX area tracing data then always allow
> field 'data_src' to be selected as an option for perf script.

Thanks, applied to perf/urgent.

- Arnaldo

 
> Fixes: e55ed3423c1b ("perf arm-spe: Synthesize memory event")
> Signed-off-by: Leo Yan <leo.yan@...aro.org>
> ---
>  tools/perf/builtin-script.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index a2f117936188..cf5eab5431b4 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -461,7 +461,7 @@ static int evsel__check_attr(struct evsel *evsel, struct perf_session *session)
>  		return -EINVAL;
>  
>  	if (PRINT_FIELD(DATA_SRC) &&
> -	    evsel__check_stype(evsel, PERF_SAMPLE_DATA_SRC, "DATA_SRC", PERF_OUTPUT_DATA_SRC))
> +	    evsel__do_check_stype(evsel, PERF_SAMPLE_DATA_SRC, "DATA_SRC", PERF_OUTPUT_DATA_SRC, allow_user_set))
>  		return -EINVAL;
>  
>  	if (PRINT_FIELD(WEIGHT) &&
> -- 
> 2.25.1

-- 

- Arnaldo