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From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
To: Paul Mundt <lethal@linux-sh.org>
Cc: Matt Fleming <matt@console-pimps.org>,
	linux-kernel@vger.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@elte.hu>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Ian Munsie <imunsie@au.ibm.com>,
	Masami Hiramatsu <mhiramat@redhat.com>
Subject: Re: [PATCH] perf: Add DWARF register lookup for SH
Date: Mon, 12 Jul 2010 17:55:59 +0900	[thread overview]
Message-ID: <4C3AD89F.5030006@hitachi.com> (raw)
In-Reply-To: <20100712064126.GA3716@linux-sh.org>

Paul Mundt wrote:
> On Mon, Jul 12, 2010 at 07:23:44AM +0100, Matt Fleming wrote:
>> On Mon, 12 Jul 2010 10:54:43 +0900, Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> wrote:
>>> Matt Fleming wrote:
>>>> Implement get_arch_regstr() for SH so that, given a DWARF register
>>>> number, the corresponding symbolic name of that register can be looked
>>>> up.
>>> OK, the patch itself looks good, but I don't know whether SH kernel
>>> supports KPROBE_EVENT which is required for perf-probe. Or, SH kernel
>>> repository already has it?
>> No, SH doesn't support KPROBE_EVENT yet. It's on my list of things to
>> do. However, this patch also stops the "DWARF register mappings have not
>> been defined" warning when building perf.
> 
> It does now, by virtue of HAVE_REGS_AND_STACK_ACCESS_API. The initial
> support for this was checked in on June 14th, so you should be able to
> use it already as long as you're working with current HEAD.

Wow, that's great! :)

Thanks!

-- 
Masami HIRAMATSU
2nd Research Dept.
Hitachi, Ltd., Systems Development Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com

  parent reply	other threads:[~2010-07-12  8:56 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-10 15:10 Matt Fleming
2010-07-12  1:54 ` Masami Hiramatsu
2010-07-12  6:23   ` Matt Fleming
2010-07-12  6:41     ` Paul Mundt
2010-07-12  8:14       ` Matt Fleming
2010-07-12  8:55       ` Masami Hiramatsu [this message]
2010-07-12  8:57 ` Masami Hiramatsu
2010-07-12 17:14   ` Arnaldo Carvalho de Melo
2010-07-16  4:21 ` [tip:perf/core] perf tools: " tip-bot for Matt Fleming

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