linux-kernel - Re: [Q] x86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 23 Feb 2008 00:44:49 -0800
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Cyrill Gorcunov" <gorcunov@...il.com>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"Sam Ravnborg" <sam@...nborg.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Q] x86 - boot/header.S

On Sat, Feb 23, 2008 at 12:20 AM, Cyrill Gorcunov <gorcunov@...il.com> 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?

we should have head32.c like head64.c
and x86_32_start_kernel.

Eric's patch long time ago...

YH
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/