Re: [Xenomai] Fwd: Error boilerplate/wrappers.h no found trying to compile RTDM module on 3.x-rc3 cobalt

[Philippe Gerum <rpm@xenomai.org>]

On 03/11/2015 06:30 PM, Helder Daniel wrote:
>     You need /lib/modules/$(shell uname -r)/build to refer to a kernel tree
>     prepared with the Xenomai kernel sources, i.e. scripts/prepare-kernel.sh
>     should have run in this source tree at some point. The errors you get
>     indicate that no Xenomai code can be found there.
> 
> 
> I had 
> 
> /lib/modules/$(shell uname -r)/build 
> 
> pointing to the kernel headers installed from a .deb package. 
> This package was created when compiling the Cobalt kernel with:
> 
> make-kpkg --initrd kernel_image kernel_headers 
> 
> so I assumed that all Xenomai code is included in that package.
> 
> Now I pointed to the kernel source tree and I can compile the module.
> 
> This is strange. I was expecting that the kernel headers package created
> with debian build to store all Xenomai info, so that I can install a
> cobalt kernel image + headers in another computer, from 2 debian
> packages (I did this before successfully with Xenomai 2.5.x) without
> having to copy all the kernel source tree.
>  

Following the current kernel standards, Xenomai 3 introduces a strict
split between kernel headers and user-space ones, with a uapi/ section
for the shared portion which exposes the ABI. Maybe debian/rules does
not reflect that change.

-- 
Philippe.