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

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Date:	Sun, 22 Nov 2009 14:19:37 +0800
From:	Wu Zhangjin <wuzhangjin@...il.com>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	rostedt@...dmis.org, Nicholas Mc Guire <der.herr@...r.at>,
	zhangfx@...ote.com, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org
Subject: Re: [PATCH v9 07/10] tracing: add dynamic function graph tracer
 for MIPS

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@...il.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so, that NOTE is out-of-date.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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