linux-kernel - Re: [PATCH 05/21] perf, session: Change header.misc dump from decimal to hex

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Message-ID: <20140218125644.GG4343@krava.brq.redhat.com>
Date:	Tue, 18 Feb 2014 13:56:44 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	acme@...stprotocols.net, LKML <linux-kernel@...r.kernel.org>,
	jmario@...hat.com, fowles@...each.com, eranian@...gle.com
Subject: Re: [PATCH 05/21] perf, session: Change header.misc dump from
 decimal to hex

On Mon, Feb 10, 2014 at 12:29:00PM -0500, Don Zickus wrote:
> When printing the raw dump of a data file, the header.misc is
> printed as a decimal.  Unfortunately, that field is a bit mask, so
> it is hard to interpret as a decimal.
> 
> Print in hex, so the user can easily see what bits are set and more
> importantly what type of info it is conveying.
> 
> Signed-off-by: Don Zickus <dzickus@...hat.com>
> ---
>  tools/perf/util/session.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
> index 0b39a48..d1ad10f 100644
> --- a/tools/perf/util/session.c
> +++ b/tools/perf/util/session.c
> @@ -793,7 +793,7 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
>  	if (!dump_trace)
>  		return;
>  
> -	printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
> +	printf("(IP, %x): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
>  	       event->header.misc, sample->pid, sample->tid, sample->ip,
>  	       sample->period, sample->addr);

nit, maybe use '0x%x' ? hum, but probably nobody is actually parsing this..

jirka
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