linux-kernel - Re: [PATCH V8 14/25] perf tools: Add perf_pmu__format

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Message-ID: <20150806195032.GF10826@kernel.org>
Date:	Thu, 6 Aug 2015 16:50:32 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Adrian Hunter <adrian.hunter@...el.com>
Cc:	Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
	Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH V8 14/25] perf tools: Add perf_pmu__format_bits()

Em Fri, Jul 17, 2015 at 07:33:49PM +0300, Adrian Hunter escreveu:
> Add perf_pmu__format_bits() to get the format bits
> for a PMU config term.  Intel PT will use this to
> validate terms and to record format bits to enable
> later interpreting the config from the attribute
> stored in the perf.data file.

Applied
 
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
>  tools/perf/util/pmu.c | 17 ++++++++++++++++-
>  tools/perf/util/pmu.h |  1 +
>  2 files changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> index 52d569cda606..d26ff0ab8410 100644
> --- a/tools/perf/util/pmu.c
> +++ b/tools/perf/util/pmu.c
> @@ -538,7 +538,7 @@ struct perf_pmu *perf_pmu__find(const char *name)
>  }
>  
>  static struct perf_pmu_format *
> -pmu_find_format(struct list_head *formats, char *name)
> +pmu_find_format(struct list_head *formats, const char *name)
>  {
>  	struct perf_pmu_format *format;
>  
> @@ -549,6 +549,21 @@ pmu_find_format(struct list_head *formats, char *name)
>  	return NULL;
>  }
>  
> +__u64 perf_pmu__format_bits(struct list_head *formats, const char *name)
> +{
> +	struct perf_pmu_format *format = pmu_find_format(formats, name);
> +	__u64 bits = 0;
> +	int fbit;
> +
> +	if (!format)
> +		return 0;
> +
> +	for_each_set_bit(fbit, format->bits, PERF_PMU_FORMAT_BITS)
> +		bits |= 1ULL << fbit;
> +
> +	return bits;
> +}
> +
>  /*
>   * Sets value based on the format definition (format parameter)
>   * and unformated value (value parameter).
> diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
> index 7b9c8cf8ae3e..5d7e84466bee 100644
> --- a/tools/perf/util/pmu.h
> +++ b/tools/perf/util/pmu.h
> @@ -54,6 +54,7 @@ int perf_pmu__config_terms(struct list_head *formats,
>  			   struct perf_event_attr *attr,
>  			   struct list_head *head_terms,
>  			   bool zero, struct parse_events_error *error);
> +__u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
>  int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
>  			  struct perf_pmu_info *info);
>  struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
> -- 
> 1.9.1
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