From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Thu, 12 Jan 2006 20:55:20 +0100
From: Wolfgang Grandegger <wg@domain.hid>
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Subject: [Xenomai-core] Re: Xenomai broken on Linux 2.4
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To: Philippe Gerum <rpm@xenomai.org>
Cc: xenomai@xenomai.org

Philippe Gerum wrote:
> Wolfgang Grandegger wrote:
> 
>> Philippe Gerum wrote:
>>
>>> Wolfgang Grandegger wrote:
>>>
>>>> Hi Philippe,
>>>>
>>>> I just realized that recent changes in ksrc/arch/powerpc/switch.S 
>>>> have broken the build of Xenomai with linuxppc_2_4_devel on PPC:
>>>>
>>>>  #include <asm/offsets.h> does not exist
>>>>  Symbols like SAVE_NVGPRS do not exist
>>>>
>>>
>>> Fixed.
>>
>>
>>
>> Thanks. Attached is a little patch fixing a build problem with Linux 
>> 2.6.14 for PowerPC (ocotea, AMCC 440GX). But I'm not sure when exactly 
>> the change happened.
>>
> 
> Looks like specific to 2.6.14-DENX (kernel.org shows the additional 
> "parent" parameter only starting with 2.6.15).
> http://www.denx.de/cgi-bin/gitweb.cgi?p=linux-2.6-denx.git;a=blobdiff;h=a9e72ac3fb9fd066ebc5607bd28cfdd4ba8f010e;hp=95d607a48f06edd22c6be64e0feaf74d1aa63467;hb=3692e2d8099f19a4d1ff95df94cc82b394f86931;f=include/linux/device.h 
> 
> 
> We likely need to find a way to specifically identify this tree.

Well, our 2.6 tree is based on the offical 2.6 tree. Don't know where 
the difference come from. Maybe Wolfgang can help (he is now on CC).

> 
>>>> For the time being, I will stick with an older version for testing 
>>>> RTnet (where I'm currently debugging "floating point used in kernel" 
>>>> errors on the MPC8260),
>>>>
>>>> Thanks.
>>>>
>>>> Wolfgang.
>>>>
>>>
>>>
>>
>>
>> ------------------------------------------------------------------------
>>
>> + diff -u 
>> linux-2.6.14-ipipe/include/asm-generic/xenomai/wrappers.h.ORIG1 
>> linux-2.6.14-ipipe/include/asm-generic/xenomai/wrappers.h
>> --- linux-2.6.14-ipipe/include/asm-generic/xenomai/wrappers.h.ORIG1    
>> 2006-01-12 16:13:28.958070000 +0100
>> +++ linux-2.6.14-ipipe/include/asm-generic/xenomai/wrappers.h    
>> 2006-01-12 16:56:08.623129271 +0100
>> @@ -150,7 +150,7 @@
>>  /* Device registration */
>>  #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,13)
>>  #define DECLARE_DEVCLASS(clname) struct class *clname
>> -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
>> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
>>  #define wrap_class_device_create class_device_create
>>  #else /* < 2.6.15 */
>>  #define wrap_class_device_create(c,p,dt,dv,fmt,args...) 
>> class_device_create(c,dt,dv,fmt , ##args)
> 
> 
>