[yocto] Build external module against Yocto kernel

[Brian Lloyd]

Or better yet, now that it is past initial, use
http://www.yoctoproject.org/docs/1.4/kernel-dev/kernel-dev.html#incorporating-out-of-tree-modules.  :)
It worked fine for 1.2 (denzil) for me, though it is written for a later
one.

Brian

On Tue, 2013-01-15 at 11:07 -0600, Brian Lloyd wrote:

> Try this in work documentation and let us know how it helps or if
> there is something missing that would help more:
> http://www.yoctoproject.org/docs/hart/kernel-dev/kernel-dev.html#incorporating-out-of-tree-modules
> 
> I just did the exact same thing and was happy to discover there is
> support in yocto for doing just this.
> 
> Brian
> 
> On Mon, 2013-01-14 at 23:27 +0000, Patrick Turley wrote: 
> 
> > I have to build a module from a third-party that has nothing to do with Yocto.
> > 
> > I want to build this module against the kernel Yocto is giving me.
> > 
> > The Make file for this module has a build command like this:
> > 
> >     make -C $(LINUX_DIR) M=`pwd` $(ENV) \
> >         EXTRA_CFLAGS="$(EXTRA_CFLAGS)" modules
> > 
> > Obviously, this command needs to connect with either the Linux source tree or something like a "kernel-headers" package.
> > 
> > I used the meta-toolchain-sdk recipe to produce an SDK, and I installed it. Unfortunately, I don't see a "kernel-header" equivalent in there.
> > 
> > This leads me to imagine I must point this command at some sub-tree within the Yocto output (probably under tmp/sysroots). And, if I want that tree available elsewhere, I have to package it up into a tarball and transport it.
> > 
> > Usually, Yocto is way ahead of me on these sorts of things, and there's already a graceful way to deal with this -- I just haven't figure it out yet.
> > 
> > What am I missing?
> > 
> > _______________________________________________
> > yocto mailing list
> > yocto at yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
> 
> 
> 
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