From: Roland Dreier <roland@topspin.com>
To: root@chaos.analogic.com
Cc: Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: Linux-2.6.5-1.358 SMP
Date: Tue, 05 Oct 2004 16:47:21 -0700 [thread overview]
Message-ID: <52vfdoraly.fsf@topspin.com> (raw)
In-Reply-To: <Pine.LNX.4.53.0410051852250.351@chaos.analogic.com> (Richard B. Johnson's message of "Tue, 5 Oct 2004 18:58:24 -0400 (EDT)")
Richard> I need to make some modules that have lots of assembly
Richard> code. This assembly uses the UNIX calling convention and
Richard> can't be re-written (it would take many months). The new
Richard> kernel is compiled with "-mregparam=2". I can't find
Richard> where that's defined. I need to remove it because I
Richard> cannot pass parameters to the assembly stuff in
Richard> registers.
You should be able to use CONFIG_REGPARM to control this. Another
option is just to mark the functions in your source as "asmlinkage"
(which is defined to "__attribute__((regparm(0)))" in
asm-i386/linkage.h). The advantage of using asmlinkage is that your
code will work with anyone's kernel.
- Roland
next prev parent reply other threads:[~2004-10-05 23:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-05 22:58 Linux-2.6.5-1.358 SMP Richard B. Johnson
2004-10-05 23:05 ` Jan Dittmer
2004-10-05 23:09 ` Richard B. Johnson
2004-10-05 23:06 ` Nathan Bryant
2004-10-05 23:47 ` Roland Dreier [this message]
2004-10-05 23:59 ` root
2004-10-06 0:30 ` Roland Dreier
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