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Message-ID: <m1abzjw434.fsf@ebiederm.dsl.xmission.com>
Date: Mon, 12 Feb 2007 12:47:27 -0700
From: ebiederm@...ssion.com (Eric W. Biederman)
To: "H. Peter Anvin" <hpa@...or.com>
Cc: Etienne Lorrain <etienne_lorrain@...oo.fr>, vgoyal@...ibm.com,
linux-kernel@...r.kernel.org
Subject: Re: Re : [PATCH] Compressed ia32 ELF file generation for loading by Gujin 1/3
"H. Peter Anvin" <hpa@...or.com> writes:
> Eric W. Biederman wrote:
>>
>> With ELF we get a single file format that works on multiple
>> architectures and for multiple OS-s, with well understood rules. This
>> allows for a broader audience who can review and maintain the code.
>> In addition to the real possibility of multi-architecture or multi-os
>> bootloaders.
>>
>
> Well understood MAYBE (although the "virtual" versus "physical" address stuff in
> ELF is clearly misspecified in the extreme), but they are clearly not sufficient
> for presenting a well-defined entry condition. So it's not really anywhere near
> as straightforward as you make it sound.
About the entry condition I completely agree.
The fact that the generic tools almost do what you need and then fall short is
also problematic.
However it still appears a reasonable approach to consider.
Eric
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