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Message-ID: <49B5C12B.1020108@kernel.org>
Date: Mon, 09 Mar 2009 18:23:55 -0700
From: Yinghai Lu <yinghai@...nel.org>
To: Jeremy Fitzhardinge <jeremy@...p.org>
CC: Ingo Molnar <mingo@...e.hu>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
the arch/x86 maintainers <x86@...nel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Absolute symbols in vmlinux_64.lds.S
Jeremy Fitzhardinge wrote:
> Why does vmlinux_64.lds.S use absolute symbols for things like
> __bss_start/stop:
>
> __bss_start = .; /* BSS */
> .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
> *(.bss.page_aligned)
> *(.bss)
> }
> __bss_stop = .;
>
>
> vmlinux_32.lds.S puts __bss_start/stop into the .bss section itself. Is
> there some particular reason they need to be absolute symbols
> (relocation?).
>
they are the same.
YH
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