linux-kernel - Re: [tip:x86/urgent] x86: Add back _end symbol that is missing from Symbol.map

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Message-ID: <4AF6F393.5050002@zytor.com>
Date:	Sun, 08 Nov 2009 08:36:35 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Sam Ravnborg <sam@...nborg.org>
CC:	mingo@...hat.com, linux-kernel@...r.kernel.org, hare@...e.de,
	akpm@...ux-foundation.org, tglx@...utronix.de, mingo@...e.hu,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/urgent] x86: Add back _end symbol that is missing	from
 Symbol.map

On 11/08/2009 03:38 AM, Sam Ravnborg wrote:
> 
> I'm afraid this will break a RELOCTABLE i386 kernel.
> 
> We fixed this up some time ago where we had to
> move the symbol definition inside a section
> to prevent the symbol being absolute.
> 

It's also possible to have a whitelist of "known relative" symbols in
reloc.c, just as we have a blacklist of "known absolute" symbols.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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