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Re: [PATCH v9 07/10] tracing: add dynamic function graph tracer for MIPS

To: Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [PATCH v9 07/10] tracing: add dynamic function graph tracer for MIPS
From: Wu Zhangjin <wuzhangjin@gmail.com>
Date: Sun, 22 Nov 2009 14:19:37 +0800
Cc: rostedt@goodmis.org, Nicholas Mc Guire <der.herr@hofr.at>, zhangfx@lemote.com, Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>, Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org
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Organization: DSLab, Lanzhou University, China
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References: <cover.1258719323.git.wuzhangjin@gmail.com> <c08257b0ef370f6e04ff9719bf7499bae28c70f4.1258719323.git.wuzhangjin@gmail.com> <20091120172438.GG6869@linux-mips.org>
Reply-to: wuzhangjin@gmail.com
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On Fri, 2009-11-20 at 17:24 +0000, Ralf Baechle wrote:
> On Fri, Nov 20, 2009 at 08:34:35PM +0800, Wu Zhangjin wrote:
> 
> > From: Wu Zhangjin <wuzhangjin@gmail.com>
> > 
> > This patch make function graph tracer work with dynamic function tracer.
> > 
> > To share the source code of dynamic function tracer(MCOUNT_SAVE_REGS),
> > and avoid restoring the whole saved registers, we need to restore the ra
> > register from the stack.
> > 
> > (NOTE: This not work with 32bit! need to ensure why!)
> > 

Hi, Ralf, Could you please remove the above "NOTE", just test your
-queue repository with the latest sched_clock() in 32bit, it works well.
so, that NOTE is out-of-date.

Thanks & Best Regards,
        Wu Zhangjin


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