[OE-core] Problem with module.bbclass

[Steffen.Pankratz at elektrobit.com]

Hi,

I am using http://git.openembedded.org/openembedded-core/tree/meta/classes/module.bbclass as a base for my recipe to compile a kernel module outside of the kernel tree.

This is my recipe:

DESCRIPTION = "Nouveau kernel module"
SECTION = "kernel/modules"
LICENSE = "CLOSED" #fixme
PR = "r0"
SRC_URI = "git://github.com/Gnurou/nouveau;protocol=https;branch=staging"
SRCREV = "c256f9450c613cd5075fc8c4a407686925041487"
S = "${WORKDIR}/git/drm/nouveau"
inherit module

Naively, I hoped that would work out of the box. Of course it did not :) and every compiler call resulted in an error message like this:

| make: *** [lib/nvif/notify.o] Error 1
| In file included from ./lib/include/nvif/os.h:32:0,
|                  from ./drm/nouveau/include/nvif/object.h:4,
|                  from ./drm/nouveau/include/nvif/device.h:4,
|                  from drm/nouveau/nvif/device.c:25:
| /home/vagrant/repos/tk1/build/tmp/sysroots/x86_64-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.9.2/include/stdint.h:9:26: fatal error: stdint.h: No such file or directory
|  # include_next <stdint.h>
|                           ^
| compilation terminated.

I could resolve that issue by adding the following line to my recipe:

EXTRA_OEMAKE='-C "${STAGING_KERNEL_DIR}"'

And another problem I had faced was that using:

S = "${WORKDIR}/git/drm/nouveau"

Compiled all kernel modules inside the kernel tree, instead only the nouveau kernel module.

I could solve that as well and finally I ended up with:

EXTRA_OEMAKE='-C "${STAGING_KERNEL_DIR}" M="${S}"/drm/nouveau/'

Now, I am not sure if I am doing something wrong or if there maybe is a problem with module.bbclass.


--
Steffen Pankratz
Expert, Software Integration & Services

EB - Driving the Future of Software
Phone:  +49 9131 7701-6605
Fax: +49 9131 7701 6333
steffen.pankratz at elektrobit.com
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