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Date:	Wed, 9 Feb 2011 21:25:50 +0800
From:	Hui Zhu <teawater@...il.com>
To:	Tom Tromey <tromey@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Michael Snyder <msnyder@...are.com>,
	Marc Khouzam <marc.khouzam@...csson.com>,
	Thiago Jung Bauermann <thiago.bauermann@...il.com>,
	Steven <mqyoung@...il.com>, colyli@...il.com,
	Christoph Hellwig <hch@...radead.org>,
	"gdb@...rceware.org" <gdb@...rceware.org>
Subject: Re: [PATCH] Linux Kernel GDB tracepoint module 2011-02-05

On Wed, Feb 9, 2011 at 00:00, Tom Tromey <tromey@...hat.com> wrote:
>>>>>> ">" == Hui Zhu <teawater@...il.com> writes:
>
>>> My gcc is 4.4.5.  Does it have VTA?
>
> Nope.  VTA went in for 4.5.
>
>>> Use the patch is easier than update gcc sometimes, right?  :)
>
> Yeah.
>
>>> BTW does VTA can handle the issue that after -O2 a lot of code
>>> execution order is worong?
>>> It affect me when I debug the Linux Kernel in qemu.
>
> My understanding is that VTA is solely about better tracking of values
> through optimization passes.  It doesn't affect code reordering, by
> design.
>
> Tom
>

Thanks Tom.

Handle the var is enough for KGTP.  Could you send me a introduce link for VTA?
I will post the the VTA to the HOWTO of the kgtp.

Best,
Hui
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