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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	the arch/x86 maintainers <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Absolute symbols in vmlinux_64.lds.S
Date: Mon, 09 Mar 2009 16:59:38 -0700	[thread overview]
Message-ID: <49B5AD6A.2020101@goop.org> (raw)

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?).

Thanks,
    J

             reply	other threads:[~2009-03-09 23:59 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-09 23:59 Jeremy Fitzhardinge [this message]
2009-03-10  1:23 ` Absolute symbols in vmlinux_64.lds.S Yinghai Lu
2009-03-10  5:37   ` Sam Ravnborg
2009-03-10  5:49     ` Eric W. Biederman
2009-03-10 20:20       ` H. Peter Anvin
2009-03-10 21:25         ` Eric W. Biederman
2009-03-10 22:26           ` Jeremy Fitzhardinge
2009-03-10  5:57     ` Yinghai Lu
2009-03-10 11:24       ` Sam Ravnborg
2009-03-10  1:36 ` Eric W. Biederman
  -- strict thread matches above, loose matches on Subject: below --
2009-03-10  4:37 Jeremy Fitzhardinge
2009-03-10  5:32 ` Yinghai Lu

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