From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Andi Kleen <ak@suse.de>
Cc: Arkadiusz Miskiewicz <arekm@maven.pl>, linux-kernel@vger.kernel.org
Subject: Re: proxy_pda was Re: What was in the x86 merge for .20
Date: Fri, 08 Dec 2006 13:09:42 -0800 [thread overview]
Message-ID: <4579D496.6080201@goop.org> (raw)
In-Reply-To: <200612082206.20409.ak@suse.de>
Andi Kleen wrote:
> Looking at Arkadiusz' output file it looks like gcc 4.2 decided to CSE the
> address :/
>
> movl $_proxy_pda+8, %edx #, tmp65
>
> Very sad, but legitimate.
>
Yes, that was my conclusion too. Though in this case the code could be
cleaned up by cutting down on the number of uses of "current" - but
that's hardly a general fix.
> The only workaround I can think of would be to define it as a symbol
> (or away in vmlinux.lds.S)
Yes. I was thinking about setting it in vmlinux.lds to some obviously
bad address so that any access will be highly visible.
> . Or do away with the idea of proxy_pda
> again.
>
That would be very sad indeed.
J
next prev parent reply other threads:[~2006-12-08 21:09 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-08 3:01 What was in the x86 merge for .20 Andi Kleen
2006-12-08 10:08 ` Andrew Morton
2006-12-08 10:44 ` Ingo Molnar
2006-12-08 16:41 ` Siddha, Suresh B
2006-12-08 17:10 ` Andi Kleen
2006-12-08 18:00 ` Siddha, Suresh B
2006-12-08 20:15 ` [discuss] " Andi Kleen
2006-12-09 8:41 ` Andrew Morton
2006-12-09 18:51 ` Andi Kleen
2006-12-08 17:12 ` Andi Kleen
2006-12-08 12:04 ` Arkadiusz Miskiewicz
2006-12-08 12:51 ` Muli Ben-Yehuda
2006-12-08 13:03 ` Arkadiusz Miskiewicz
2006-12-08 16:34 ` Muli Ben-Yehuda
2006-12-08 18:04 ` Andi Kleen
2006-12-08 18:10 ` Arkadiusz Miskiewicz
2006-12-08 20:07 ` Andi Kleen
2006-12-08 20:36 ` Jeremy Fitzhardinge
2006-12-08 20:35 ` Jeremy Fitzhardinge
2006-12-08 21:06 ` proxy_pda was " Andi Kleen
2006-12-08 21:09 ` Jeremy Fitzhardinge [this message]
2006-12-08 21:22 ` Andi Kleen
2006-12-08 21:34 ` Jeremy Fitzhardinge
2006-12-08 22:04 ` Arkadiusz Miskiewicz
-- strict thread matches above, loose matches on Subject: below --
2007-01-15 20:41 Paweł Sikora
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