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From: "H. Peter Anvin" <hpa@zytor.com>
To: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Q] x86 - boot/header.S
Date: Sun, 24 Feb 2008 18:15:52 -0800	[thread overview]
Message-ID: <47C224D8.8070409@zytor.com> (raw)
In-Reply-To: <20080223082026.GA6747@cvg>

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

  parent reply	other threads:[~2008-02-25  2:16 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-23  8:20 [Q] x86 - boot/header.S Cyrill Gorcunov
2008-02-23  8:44 ` Yinghai Lu
2008-02-23  9:07   ` Cyrill Gorcunov
2008-02-23  9:18     ` Sam Ravnborg
2008-02-23  9:21       ` Cyrill Gorcunov
2008-02-25  2:17     ` H. Peter Anvin
2008-02-25  2:15 ` H. Peter Anvin [this message]
2008-02-25  8:06   ` Cyrill Gorcunov

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