linux-kernel - Re: Trying to convert old modules to newer kernels

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Message-ID: <Pine.LNX.4.61.0712201623500.9531@chaos.analogic.com>
Date:	Thu, 20 Dec 2007 16:27:37 -0500
From:	"linux-os (Dick Johnson)" <linux-os@...logic.com>
To:	"Sam Ravnborg" <sam@...nborg.org>
Cc:	"Lennart Sorensen" <lsorense@...lub.uwaterloo.ca>,
	"Linux kernel" <linux-kernel@...r.kernel.org>
Subject: Re: Trying to convert old modules to newer kernels

On Thu, 20 Dec 2007, Sam Ravnborg wrote:

>>
>> It never gets to the printk(). You were right about the
>> compilation. Somebody changed the kernel to compile with
>> parameter passing in REGISTERS! This means that EVERYTHING
>> needs to be compiled the same way, 'C' calling conventions
>> were not good enough!
>
> How did you build the module. It reads like you failed to use
> kbuild to build your module which is why you did not pass
> correct options to gcc - correct?
>
> If you did not use kbuild - why not?
> Is there anything missing you need?
>
> 	Sam
>

I need to get rid of -mregparm=3 on gcc's command line. It
is completely incompatible with the standard calling conventions
used in all our assembly-language files in our drivers. We make
very high-speed number-crunching drivers that munge high-speed
data into images. We need to do that in assembly as we have
always done.

Cheers,
Dick Johnson
Penguin : Linux version 2.6.22.1 on an i686 machine (5588.29 BogoMips).
My book : http://www.AbominableFirebug.com/
_

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