Re: [Xenomai] /asm/ipipe.h not found

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

On Wed, Dec 10, 2014 at 06:16:15PM +0530, JAY KOTHARI wrote:
> On 12/10/14, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> wrote:
> > On Wed, Dec 10, 2014 at 04:24:53PM +0530, JAY KOTHARI wrote:
> >> On 12/10/14, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
> >> wrote:
> >> > On Wed, Dec 10, 2014 at 03:57:44PM +0530, JAY KOTHARI wrote:
> >> >> Hello,
> >> >>     I am porting linux-3.2.21(xenomai-2.6.2 patched to it) on
> >> >> BeagleBoard-XM.
> >> >
> >> > You do not need to port it, it is already supported.
> >> >
> >> > Also, why using such old versions ? The latest version of Xenomai is
> >> > 2.6.4 and will work with the I-pipe patch for Linux 3.2.21.
> .
> 
> >> >
> >> >
> >> >> zImage is successfully made. But when I am building
> >> >> the modules with following command
> >> >>
> >> >>  $make -j 8 ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi modules
> >> >>
> >> >>  It shows error:
> >> >>   make CONFIG_DEBUG_SECTION_MISMATCH=y
> >> >
> >> > Yes, this has been reported, and fixed in later patches. That is
> >> > what you get by using old patches. Simply turn that off.
> >> >
> >> I turn it off by this command
> >> $make CONFIG_DEBUG_SECTION_MISMATCH=n
> >>
> >> >>
> >> >> After this I ran
> >> >>  $make CONFIG_DEBUG_SECTION_MISMATCH=y
> >> >>
> >> >> This lets to another error
> >> >> include/linux/ipipe.h :33:23: fatal error:asm/ipipe.h: No such file or
> >> >> directory.
> >> >> compilation terminated.
> >> >>
> >> >>       Actually ipipe.h is there in /asm/ipipe.h:I tried to set CFLAG
> >> >> and export it but it is not working.Help would be appreciated.
> >> >
> >> > You do not provide enough information for us to answer that
> >> > question. Sorry.
> >> >
> >> > --
> >> > 					
> >> >
> >> After doing that I got following error
> >> make[1]: Nothing to be done for `relocs'.
> >>   CHK     include/linux/version.h
> >>   CHK     include/generated/utsrelease.h
> >>   CC      arch/x86/kernel/asm-offsets.s
> >> In file included from include/linux/sched.h:65:0,
> >>                  from arch/x86/kernel/asm-offsets.c:9:
> >> include/linux/ipipe.h:33:23: fatal error: asm/ipipe.h: No such file or
> >> directory
> >> compilation terminated.
> >> make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
> >> make: *** [prepare0] Error 2
> >
> > Interesting information, but maybe not sufficient to solve your
> > issue, you want to compile for beaglebone, but you are compiling a
> > kernel for the x86 architecture ? I am afraid it will not work.
> >
> > --
> > 					    Gilles.
> 
> 
> 
> Information:
> main processor architecture:x86 32bit
> target system: BeagleBoardXM
>  Linux kernel release number:3.2.21 for target hardware
> dynamic boot parameter: root=/dev/sda7 resume=/dev/sda6 splash=silent quiet
> Xenomai release number you experience an issue: Xenomai-2.6.2
> Havnt got it from GIT  repositories
> 
> Problem:
> I built zImage successfully. When I build modules its showing error
> $make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi modules
> 
> it showed error
>   make CONFIG_DEBUG_SECTION_MISMATCH=y
> 
> As you suggested I disabled it and ran
>  make CONFIG_DEBUG_SECTION_MISMATCH=n
> 
> Now it shows following error:
> 
> make[1]: Nothing to be done for `relocs'.
>    CHK     include/linux/version.h
>    CHK     include/generated/utsrelease.h
>    CC      arch/x86/kernel/asm-offsets.s
>  In file included from include/linux/sched.h:65:0,
>                   from arch/x86/kernel/asm-offsets.c:9:
>  include/linux/ipipe.h:33:23: fatal error: asm/ipipe.h: No such file or
>  directory
>  compilation terminated.
>  make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
>  make: *** [prepare0] Error 2
> 
> If you need more information please let me know which information. 

Please read my answer again. So far, the problem you have does not
prove there is anything wrong with Xenomai: you are compiling a
kernel patched for beaglebone, for the x86 architecture. This is not
supposed to work.

For details on how to install Xenomai see:
https://xenomai.org/installing-xenomai-2-x/

> Is
> there any other version of xenomai which has patch for linux-3.2.21?
> Please correct me.

A version of Xenomai 2.x supports all the I-pipe patches for kernel
versions which have been published before. So, if for instance
Xenomai 2.6.2 was the first xenomai version to support Linux 3.2.21:
- Xenomai 2.6.2 supports all I-pipe patches for Linux 3.2.21 which
were published later
- all later Xenomai versions support all the I-pipe patches for
Linux 3.2.21.

-- 
					    Gilles.