linux-kernel - Re: [PATCH] perf: fix wrong hw

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Message-ID: <20120627161557.GA3878@infradead.org>
Date:	Wed, 27 Jun 2012 13:15:57 -0300
From:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Namhyung Kim <namhyung@...nel.org>,
	Jovi Zhang <bookjovi@...il.com>, mingo@...hat.com,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perf: fix wrong hw_breakpoint documentation

Em Wed, Jun 27, 2012 at 05:59:34PM +0900, Namhyung Kim escreveu:
> Hi, Jovi
> 
> On Wed, 27 Jun 2012 16:39:19 +0800, Jovi Zhang wrote:
> > From f5f9c3a064482cf3d0fb7ed788c66630bddbfc79 Mon Sep 17 00:00:00 2001
> > From: Jovi Zhang <bookjovi@...il.com>
> > Date: Wed, 27 Jun 2012 16:09:21 +0800
> > Subject: [PATCH] perf: fix wrong hw_breakpoint documentation
> >
> > read-write access hw_breakpoint event is passed as 'mem:addr',
> > 'mem:0x1000:rw' is parsed as invalid argument currently.
> >
> 
> It should be a bug in event parser. I guess the patch below will fix it:

Jiri,

	Ack? If so, Namhyung, can you send a patch with his Ack?

- Arnaldo
 
> 
> diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
> index 488362e14133..aafca33a8a09 100644
> --- a/tools/perf/util/parse-events.l
> +++ b/tools/perf/util/parse-events.l
> @@ -76,7 +76,7 @@ num_hex               0x[a-fA-F0-9]+
>  num_raw_hex    [a-fA-F0-9]+
>  name           [a-zA-Z_*?][a-zA-Z0-9_*?]*
>  modifier_event [ukhpGH]{1,8}
> -modifier_bp    [rwx]
> +modifier_bp    [rwx]+
>  
>  %%
>  
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