linux-kernel - Re: [PATCH v5 3.1.0-rc4-tip 25/26] perf: Documentation for perf uprobes

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Date:	Wed, 28 Sep 2011 18:20:16 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	Linux-mm <linux-mm@...ck.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Hugh Dickins <hughd@...gle.com>,
	Christoph Hellwig <hch@...radead.org>,
	Jonathan Corbet <corbet@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Oleg Nesterov <oleg@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	Roland McGrath <roland@...k.frob.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v5 3.1.0-rc4-tip 25/26]   perf: Documentation for perf
 uprobes

(2011/09/20 21:05), Srikar Dronamraju wrote:
> Modify perf-probe.txt to include uprobe documentation

This change should be included in 23rd and 24th patches,
because the documentation should be updated with the tool
enhancement.

Thank you,

> 
> Signed-off-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
> ---
>  tools/perf/Documentation/perf-probe.txt |   14 ++++++++++++++
>  1 files changed, 14 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
> index 800775e..3c98a54 100644
> --- a/tools/perf/Documentation/perf-probe.txt
> +++ b/tools/perf/Documentation/perf-probe.txt
> @@ -78,6 +78,8 @@ OPTIONS
>  -F::
>  --funcs::
>  	Show available functions in given module or kernel.
> +	With -x/--exec, can also list functions in a user space executable
> +	/ shared library.
>  
>  --filter=FILTER::
>  	(Only for --vars and --funcs) Set filter. FILTER is a combination of glob
> @@ -98,6 +100,11 @@ OPTIONS
>  --max-probes::
>  	Set the maximum number of probe points for an event. Default is 128.
>  
> +-x::
> +--exec=PATH::
> +	Specify path to the executable or shared library file for user
> +	space tracing. Can also be used with --funcs option.
> +
>  PROBE SYNTAX
>  ------------
>  Probe points are defined by following syntax.
> @@ -182,6 +189,13 @@ Delete all probes on schedule().
>  
>   ./perf probe --del='schedule*'
>  
> +Add probes at zfree() function on /bin/zsh
> +
> + ./perf probe -x /bin/zsh zfree
> +
> +Add probes at malloc() function on libc
> +
> + ./perf probe -x /lib/libc.so.6 malloc
>  
>  SEE ALSO
>  --------
> --
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-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@...achi.com
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