linux-kernel - Re: [PATCH v4 3.0-rc2-tip 22/22] 22: perf: Documentation for perf uprobes

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Message-ID: <4DF2082C.6070009@hitachi.com>
Date:	Fri, 10 Jun 2011 21:03:56 +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>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Hugh Dickins <hughd@...gle.com>,
	Christoph Hellwig <hch@...radead.org>,
	Jonathan Corbet <corbet@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Oleg Nesterov <oleg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	Roland McGrath <roland@...k.frob.com>,
	Andi Kleen <andi@...stfloor.org>,
	LKML <linux-kernel@...r.kernel.org>,
	yrl.pp-manager.tt@...achi.com
Subject: Re: [PATCH v4 3.0-rc2-tip 22/22] 22: perf: Documentation for perf
 uprobes

(2011/06/07 22:02), Srikar Dronamraju wrote:
> Modify perf-probe.txt to include uprobe documentation

Sorry, Nak this. I hope to see better uniformed interface for
both of uprobe and kprobe, even after we support debuginfo for
uprobe.

I mean, if uprobe always requires a user-space binary, it should
be specified with -u option instead of --exe and @EXE.

I think this simplifies perf probe usage, it implies;

# perf probe [-k KERN] [...]  // Control probes in kernel
# perf probe -m MOD [...]     // Control probes in MOD module
# perf probe -u EXE [...]     // Control probes on EXE file

Thank you,


-- 
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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