From: Ralf Baechle <ralf@linux-mips.org>
To: David Daney <ddaney@avtrex.com>, linux-mips@linux-mips.org
Subject: Re: OProfile cannot be loaded as module...
Date: Thu, 13 Oct 2005 23:55:21 +0100 [thread overview]
Message-ID: <20051013225520.GA3234@linux-mips.org> (raw)
In-Reply-To: <43470BCF.1070709@avtrex.com>
On Fri, Oct 07, 2005 at 04:59:11PM -0700, David Daney wrote:
> arch/mips/oprofile/common.c defines several symbols (op_model_mipsxx and
> op_model_rm9000) with __attribute__((weak)). It then assumes that ELF
> linking conventions will prevail and there will be no problems if they
> are undefined.
>
> The problem is if you try to load oprofile as a module. The kernel
> module linker evidentially does not understand weak symbols and refuses
> to load the module because they are undefined.
Actually it contains code to handle weak symbols so this is a bit
surprising not last because STB_WEAK handling happen in the generic
module loader code and is being used by other architectures as well.
So if there's a problem with the module loader I'd prefer to solve that
instead of starting to kludge around it.
What compiler exactly are you using btw?
Ralf
next prev parent reply other threads:[~2005-10-14 10:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-07 23:59 OProfile cannot be loaded as module David Daney
2005-10-08 0:25 ` David Daney
2005-10-13 22:55 ` Ralf Baechle [this message]
2005-10-17 20:14 ` David Daney
2005-10-18 11:03 ` Ralf Baechle
2005-10-18 15:46 ` David Daney
2005-10-18 16:38 ` Ralf Baechle
2006-04-21 14:33 ` Atsushi Nemoto
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