linux-kernel - Re: [PATCH 9/33] i386 boot: Add serial output support to the decompressor

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Message-Id: <200608020510.07569.ak@suse.de>
Date:	Wed, 2 Aug 2006 05:10:07 +0200
From:	Andi Kleen <ak@...e.de>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	linux-kernel@...r.kernel.org, Horms <horms@...ge.net.au>,
	Jan Kratochvil <lace@...kratochvil.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Magnus Damm <magnus.damm@...il.com>,
	Vivek Goyal <vgoyal@...ibm.com>, Linda Wang <lwang@...hat.com>
Subject: Re: [PATCH 9/33] i386 boot: Add serial output support to the decompressor


> > /* WARNING!!
> >  * This code is compiled with -fPIC and it is relocated dynamically
> >  * at run time, but no relocation processing is performed.
> >  * This means that it is not safe to place pointers in static structures.
> >  */

iirc the only static relocation in early_printk is the one to initialize
the console pointers - that could certainly be moved to be at run time.
 
> lib/string.c might be useful.  The fact that the functions are not
> static slightly concerns me.  I have a vague memory of non-static
> functions generating relocations for no good reason.

Would surprise me.

-Andi
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