[Xenomai-help] install xenomai for beagleboard

[Xenomai-help] install xenomai for beagleboard

[Everett Wang]

Hi All,

I am new to xenomai and trying to install xenomai for my beagleboard,
using a Ubuntu 10.04 laptop computer. I have
downloaded xenomai 2.5.2 and plain linux kernel 2.6.30.5 from
www.kernal.org, installed cross compiler
arm-2009q1-203-arm-none-linux-gnueabi. Following the instruction in
REAM.INSTALL, I linked my linux-2.6.30.5 to /usr/src/linux and
xenomai-2.5.2 to /usr/xenomai.

I managed to patch my linux kernel fine:
everett@domain.hid$ scripts/prepare-kernel.sh
--arch=arm --adeos=/usr/xenomai/ksrc/arch/arm/patches/adeos-ipipe-2.6.30-arm-*
--linux=/usr/src/linux

and configured my kernel
cd /rtos/linux-2.6.30.5
root@domain.hid#  make ARCH=arm
CROSS_COMPILE=arm-none-linux-gnueabi- O=$build_root
omap3_beagle_defconfig

then compile kernel and modules
root@domain.hid#  make ARCH=arm
CROSS_COMPILE=arm-none-linux-gnueabi- O=$build_root bzImage modules

It runs fine. But I have some random questions.

where is the bzImage it made and modules I just made? Should I use a
newer version of Code Sourcery's cross compiler? I am using
arm-2009q1-203-arm-none-linux-gnueabi and there is an
arm-2010q1-202-arm-none-linux-gnueabi. I have difficult to follow
in compiling xenomai. The instruction reads:

"cd $build_root
$ $xenomai_root/configure --build=i686-pc-linux-gnu --host=arm-linux
--enable-arm-mach=at91rm9200 --enable-arm-tsc"

I have not defined a $build_root directory and what is the right name
to replace at91rm9200 and tsc?


Thanks in advance,

Everett

Re: [Xenomai-help] install xenomai for beagleboard

[Gilles Chanteperdrix]

Everett Wang wrote:
> (...)
> It runs fine. But I have some random questions.
> 
> where is the bzImage it made and modules I just made? 

bzImage is an x86 thing. Your questions is not really specific to
Xenomai, it is about compiling a Linux kernel for ARM. There are a lot
of resources on internet which will answer this question. For instance,
this is answered by Linux arm kernel FAQ #1:
http://www.arm.linux.org.uk/mailinglists/faq.php#f1
Or, Beagle specific instructions on Beagle wiki:
http://elinux.org/BeagleBoard#Linux_kernel

> Should I use a
> newer version of Code Sourcery's cross compiler? I am using
> arm-2009q1-203-arm-none-linux-gnueabi and there is an
> arm-2010q1-202-arm-none-linux-gnueabi. I have difficult to follow
> in compiling xenomai. 

Any version should be almost Ok. Except one of the 2008 version if you
want to enable stack unwinding.


> The instruction reads:
> 
> "cd $build_root
> $ $xenomai_root/configure --build=i686-pc-linux-gnu --host=arm-linux
> --enable-arm-mach=at91rm9200 --enable-arm-tsc"
> 
> I have not defined a $build_root directory and what is the right name
> to replace at91rm9200 and tsc?

the instructions also read:
--enable-arm-mach   Select ARM machine for the       none
                    current build tree, check
                    configure --help for a list
                    of valid values.
                    Passing this option is
                    mandatory when compiling
                    Xenomai for ARM

and:
# $linux_tree = path to the target kernel sources
# $xenomai_root = path to the Xenomai sources
# $build_root = path to a clean build directory
# $staging_dir = path to a directory that will hold the installed file

Again, the issue here is about compiling a package using the autotools,
there is nothing specific about Xenomai. There is a lot of resources
about this on the web. For instance:
http://sources.redhat.com/autobook/autobook/autobook_13.html#SEC13
I even wrote a tutorial for the autotools some time ago:
http://sisyphus.hd.free.fr/~gilles/pub/autotools/

-- 
					    Gilles.

Re: [Xenomai-help] install xenomai for beagleboard

[Everett Wang]

Hi Gilles,

Thanks for your reply. It is very helpful for me and probably for many
who are just getting started in
beagleboard.

Best regards,

Everett

On Wed, May 5, 2010 at 2:07 PM, Gilles Chanteperdrix
<gilles.chanteperdrix@xenomai.org> wrote:
> Everett Wang wrote:
>> (...)
>> It runs fine. But I have some random questions.
>>
>> where is the bzImage it made and modules I just made?
>
> bzImage is an x86 thing. Your questions is not really specific to
> Xenomai, it is about compiling a Linux kernel for ARM. There are a lot
> of resources on internet which will answer this question. For instance,
> this is answered by Linux arm kernel FAQ #1:
> http://www.arm.linux.org.uk/mailinglists/faq.php#f1
> Or, Beagle specific instructions on Beagle wiki:
> http://elinux.org/BeagleBoard#Linux_kernel
>
>> Should I use a
>> newer version of Code Sourcery's cross compiler? I am using
>> arm-2009q1-203-arm-none-linux-gnueabi and there is an
>> arm-2010q1-202-arm-none-linux-gnueabi. I have difficult to follow
>> in compiling xenomai.
>
> Any version should be almost Ok. Except one of the 2008 version if you
> want to enable stack unwinding.
>
>
>> The instruction reads:
>>
>> "cd $build_root
>> $ $xenomai_root/configure --build=i686-pc-linux-gnu --host=arm-linux
>> --enable-arm-mach=at91rm9200 --enable-arm-tsc"
>>
>> I have not defined a $build_root directory and what is the right name
>> to replace at91rm9200 and tsc?
>
> the instructions also read:
> --enable-arm-mach   Select ARM machine for the       none
>                    current build tree, check
>                    configure --help for a list
>                    of valid values.
>                    Passing this option is
>                    mandatory when compiling
>                    Xenomai for ARM
>
> and:
> # $linux_tree = path to the target kernel sources
> # $xenomai_root = path to the Xenomai sources
> # $build_root = path to a clean build directory
> # $staging_dir = path to a directory that will hold the installed file
>
> Again, the issue here is about compiling a package using the autotools,
> there is nothing specific about Xenomai. There is a lot of resources
> about this on the web. For instance:
> http://sources.redhat.com/autobook/autobook/autobook_13.html#SEC13
> I even wrote a tutorial for the autotools some time ago:
> http://sisyphus.hd.free.fr/~gilles/pub/autotools/
>
> --
>                                            Gilles.
>

Re: [Xenomai-help] install xenomai for beagleboard

[Gilles Chanteperdrix]

Everett Wang wrote:
> Hi Gilles,
> 
> Thanks for your reply. It is very helpful for me and probably for many
> who are just getting started in
> beagleboard.

I am not sure there are that many people getting started with a board
who do not bother to have a look at its wiki.


-- 
					    Gilles.