On Mon, 2011-05-09 at 00:16 +0200, Franz Leitl wrote:
> Hi,
>
> I've tried to get compcache kernel module building against 2.6.34 from shr-
> core but found some issues with kernel.bbclass and module.bbclass.
>
> The kernel.bbclass deletes the .c files from scripts directory which are
> later
> needed by make prepare to recreate bound.h and other files. Compcache kernel
> module, for example, depends on bounds.h.
The bounds.h should not need to be recreated. It is created during the
build of the kernel, and since 2.6.26, the makefile knows not to remove
it.
> The module.bbclass finally needs to call "make prepare" and also set
> KERNEL_PATH in do_install when calling oe_runmake to get everything
> installed correctly.
Since we copy over the source tree after a simple clean, make prepare
should also not be necessary:
clean - Remove most generated files but keep the config and
enough build support to build external modules
So I'm curious about your workflow and why you are hitting these two
issues. Can you share your recipes?
> I also added KERNELDIR as compcache's Makefile is using it and the
> classes from classic OE had it also set.
I'm not familiar with compcache, but generally speaking we can't get in
the habit of modifying the recipe classes to support whatever variables
random external module Makefile expect. See recipes-kernel/hello-mod for
an example Makefile that builds an external module using the existing
infrastructure. You may just need a patch to the compcache Makefile for
it to work within the existing infrastructure.
>
> Can someone please review the attached patch?
>
>
> Regards,
> Franz
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--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel
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