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From: ebiederm@xmission.com (Eric W. Biederman)
To: Etienne Lorrain <etienne_lorrain@yahoo.fr>
Cc: vgoyal@in.ibm.com, "H. Peter Anvin" <hpa@zytor.com>,
	linux-kernel@vger.kernel.org
Subject: Re: Re : [PATCH] Compressed ia32 ELF file generation for loading by Gujin 1/3
Date: Thu, 08 Feb 2007 04:20:10 -0700	[thread overview]
Message-ID: <m1odo4aob9.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <20070208094831.56920.qmail@web26908.mail.ukl.yahoo.com> (Etienne Lorrain's message of "Thu, 8 Feb 2007 09:48:31 +0000 (GMT)")

Etienne Lorrain <etienne_lorrain@yahoo.fr> writes:

>> Currently relocation information is extracted from vmlinux and packed in
>> final bzImage after some processing. After execution of real mode code
>> and once the image is decompressed, all the relocations are performed and
>> then control is transferred to kernel.
>
>   So here you are not really using the initial ELF program header of vmlinux,
> but more the section header and my PT_LOAD section bother you, I better
> understand. You cannot really claim you are only doing standard/usual
> ELF treatment.

The difference is that a boot loader is not doing the work.  The format is.
Compiling -fPIC almost gets us there except ld has bugs processing absolute
symbols.

Anything we expect a bootloader to do need to be as close as possible to
the usual ELF treatment.

Eric

  reply	other threads:[~2007-02-08 11:20 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-08  9:48 Etienne Lorrain
2007-02-08 11:20 ` Eric W. Biederman [this message]
2007-02-08 11:37 ` Vivek Goyal
2007-02-08 12:10   ` Eric W. Biederman
  -- strict thread matches above, loose matches on Subject: below --
2007-02-11 20:49 RE : " Eric W. Biederman
2007-02-12 10:42 ` Etienne Lorrain
2007-02-12 12:29   ` Eric W. Biederman
2007-02-12 13:58     ` Etienne Lorrain
2007-02-12 14:06     ` H. Peter Anvin
2007-02-12 19:47       ` Eric W. Biederman
2007-02-08 13:10 Etienne Lorrain
2007-02-09  5:59 ` Vivek Goyal
2007-02-09 13:04   ` Etienne Lorrain
2007-02-09 19:42     ` Eric W. Biederman
2007-02-07 14:29 Etienne Lorrain
2007-02-07 17:12 ` H. Peter Anvin
2007-02-06 17:23 Etienne Lorrain
2007-02-06 17:34 ` H. Peter Anvin
2007-02-06 18:12 ` Eric W. Biederman
2007-02-06 13:23 Etienne Lorrain
2007-02-06 13:12 Etienne Lorrain
2007-02-07  6:44 ` Vivek Goyal
2007-02-06 12:49 Etienne Lorrain

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