linux-kernel - Re: [PATCH 3/12] i386: Force section size to be non-zero to prevent a symbol becoming absolute

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Message-Id: <200610041302.46672.ak@suse.de>
Date:	Wed, 4 Oct 2006 13:02:46 +0200
From:	Andi Kleen <ak@...e.de>
To:	vgoyal@...ibm.com
Cc:	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Reloc Kernel List <fastboot@...ts.osdl.org>,
	ebiederm@...ssion.com, akpm@...l.org, horms@...ge.net.au,
	lace@...kratochvil.net, hpa@...or.com, magnus.damm@...il.com,
	lwang@...hat.com, dzickus@...hat.com, maneesh@...ibm.com
Subject: Re: [PATCH 3/12] i386: Force section size to be non-zero to prevent a symbol becoming absolute


>    /* writeable */
> @@ -64,6 +66,7 @@ SECTIONS
>  	*(.data.nosave)
>    	. = ALIGN(4096);
>    	__nosave_end = .;
> +	LONG(0)
>    }
>  
>    . = ALIGN(4096);

You're wasting one full page once for each of these LONG(0)s because
of the following 4096 alignment.

Isn't there some way to do this less wastefull?

-Andi
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