linux-kernel - Re: [Q] x86

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Message-ID: <47C224D8.8070409@zytor.com>
Date:	Sun, 24 Feb 2008 18:15:52 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Cyrill Gorcunov <gorcunov@...il.com>
CC:	Sam Ravnborg <sam@...nborg.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Q] x86 - boot/header.S

Cyrill Gorcunov wrote:
> Hi Peter, Sam,
> 
> could you take a look on x86/boot/header.S:280 please?
> 
> # Zero the bss
> 	movw	$__bss_start, %di
> 	movw	$_end+3, %cx
> 	xorl	%eax, %eax
> 	subw	%di, %cx
> 	shrw	$2, %cx
> 	rep; stosl
> 
> I wonder why is $_end there instead of $__bss_stop?
> Well, accroding to vmlinux_32.lsd both _end and __bss_stop
> are the same BUT __bss_stop is more convenient methink.
> Would it be usefull to change?

x86/boot/header.S goes with x86/boot/setup.ld and no other linker script.

	-hpa
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