linux-kernel - Re: [Fastboot] [CFT] ELF Relocatable x86 and x86

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Date:	Wed, 09 Aug 2006 14:40:31 +0200
From:	Bodo Eggert <7eggert@...tempel.de>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Don Zickus <dzickus@...hat.com>, fastboot@...l.org,
	Horms <horms@...ge.net.au>,
	Jan Kratochvil <lace@...kratochvil.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [Fastboot] [CFT] ELF Relocatable x86 and x86_64 bzImages

Eric W. Biederman <ebiederm@...ssion.com> wrote:

> Odd.  I wonder if I'm missing a serializing instruction somewhere,
> to ensure the effects of ``self modifying code'' aren't a problem.
> As I read Intels Documentation if you have a jump before you get
> to the code there shouldn't be a problem.

ACK, a short jump to the next instruction *should* be all it takes, but if
it doesn't, maybe a long jump will do the trick.
-- 
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.

http://david.woodhou.se/why-not-spf.html
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