From: Lionel Bouton <Lionel.Bouton@free.fr>
To: xsebbi@gmx.de, Linux <linux-kernel@vger.kernel.org>
Subject: Re: system.map
Date: Wed, 02 Jan 2002 22:25:28 +0100 [thread overview]
Message-ID: <3C337AC8.2020900@free.fr> (raw)
In-Reply-To: <20020102191157.49760.qmail@web21204.mail.yahoo.com> <200201022028.04945@xsebbi.de>
Sebastian Roth wrote:
>>Hi all
>>
>
> hello,
>
>
>>Why sometimes I don't need to copy the system.map to
>>/boot when I update the kernel
>>and the system also can boot?
>>
>
>>Is it correct?
>>
>
> yes, this is correct. I think this System.map contains only some useful
> information about modules for the kernel.
> [...]
"man klogd", "man ksymoops".
Short:
System.map is an ordered (by address) list of (kernel address, ?type?,
and syscall name).
Module syscalls are dynamic by nature so there's a kernel interface for
exporting symbols to user utilities needing their addresses (see
/proc/ksyms).
You don't need System.map to boot. But user space apps like ps (can show
the current syscall used by a process), klogd (for clean GPF reports),
ksymoops (mainly as a cross-check with vmlinux symbols) use it and
search it in numerous places : with or without `-uname -r` appended (at
least in / /boot /usr/src/linux).
LB.
next prev parent reply other threads:[~2002-01-02 21:26 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-02 19:11 system.map adrian kok
2002-01-02 19:26 ` system.map Timothy Covell
2002-01-02 19:39 ` system.map Tony Hoyle
2002-01-02 20:03 ` system.map Timothy Covell
2002-01-02 20:19 ` system.map Kilobug
2002-01-02 20:35 ` system.map Timothy Covell
2002-01-02 21:14 ` system.map Eric S. Johnson
2002-01-03 9:43 ` system.map Miquel van Smoorenburg
[not found] ` <02010312301401.01898@manta>
2002-01-03 10:59 ` Sync and reboot (was: Re: system.map) Miquel van Smoorenburg
2002-01-03 11:17 ` Andre Hedrick
2002-01-02 20:25 ` system.map Tony Hoyle
2002-01-02 20:45 ` system.map Timothy Covell
2002-01-02 21:10 ` system.map Alan Cox
2002-01-02 23:07 ` system.map Nicholas Harring
2002-01-03 2:14 ` system.map Daniel Phillips
2002-01-03 15:54 ` system.map Albert D. Cahalan
2002-01-02 19:47 ` How can one get System.map w/o vmlinux? Timothy Covell
2002-01-02 20:34 ` David Golden
2002-01-02 22:00 ` Christian Koenig
2002-01-02 19:51 ` system.map Horst von Brand
2002-01-02 20:54 ` system.map Keith Owens
2002-01-02 21:13 ` system.map Timothy Covell
2002-01-02 23:01 ` system.map skidley
2002-01-02 23:14 ` system.map Timothy Covell
2002-01-02 21:17 ` system.map Albert D. Cahalan
2002-01-02 21:31 ` system.map Keith Owens
2002-01-02 22:09 ` system.map Nicholas Knight
2002-03-09 0:21 ` system.map H. Peter Anvin
2002-01-02 22:23 ` system.map Albert D. Cahalan
2002-01-02 23:38 ` system.map Marcel J.E. Mol
2002-01-02 19:30 ` system.map Sebastian Roth
2002-01-02 21:25 ` Lionel Bouton [this message]
2002-01-02 22:15 ` system.map David Golden
2002-01-02 22:21 ` system.map Nick LeRoy
2002-01-02 22:29 ` system.map Lionel Bouton
[not found] <fa.ephh22v.1ljqarg@ifi.uio.no>
[not found] ` <fa.hmqrtsv.13jqup8@ifi.uio.no>
2002-01-02 21:14 ` system.map John Weber
2002-01-02 21:42 ` system.map Keith Owens
-- strict thread matches above, loose matches on Subject: below --
2004-12-06 17:34 System.map Anoop T
2004-12-07 11:43 ` System.map Jan Engelhardt
2005-07-12 16:34 system.map vacant2005
2005-07-13 10:21 ` system.map Jan Engelhardt
[not found] ` <200507131244.08336.vacant2005@o2.pl>
2005-07-13 10:45 ` system.map Jacek Jabłoński
2005-07-13 10:56 ` system.map Arjan van de Ven
2005-07-13 11:04 ` system.map Jan Engelhardt
2005-07-13 11:27 ` system.map Russell King
2005-07-13 11:33 ` system.map Arjan van de Ven
2007-10-14 17:07 System.map Philip
2007-10-14 18:45 ` System.map Jan Engelhardt
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