On Thu, Oct 19, 2017 at 12:38 PM, Marlon Smith <marlon.smith10@gmail.com> wrote:

On Wed, 2017-10-18 at 22:50 -0700, Khem Raj wrote:

On Wed, Oct 18, 2017 at 3:13 PM, Marlon Smith <marlon.smith10@gmail.c
om> wrote:


Hi everyone,

I'm trying to build the Linux backports project to get updated wifi
drivers
on an older kernel.  The problem is that when building backports,
it first
builds several tools that need to be run natively before cross-
compiling the
rest of the project.

I know how to write a bitbake recipe to compile natively, and how
to write
one to build for the target, but I can't figure out how to combine
the two.
The backports project has steps for LTIB:

 %Build
 export PATH=$UNSPOOF_PATH

 make menuconfig prefix=%{_prefix} \
   CROSS_COMPILE=${TOOLCHAIN_PATH}/bin/${TOOLCHAIN_PREFIX} \
   ARCH=$LINTARCH KLIB=${TOP}/rootfs/lib/modules/%{kversion} \
   KLIB_BUILD=${TOP}/rpm/BUILD/linux

 export PATH=$SPOOF_PATH

 make prefix=%{_prefix} \
   CROSS_COMPILE=${TOOLCHAIN_PATH}/bin/${TOOLCHAIN_PREFIX} \
   ARCH=$LINTARCH KLIB=${TOP}/rootfs/lib/modules/%{kversion} \
   KLIB_BUILD=${TOP}/rpm/BUILD/linux


I believe what I need is an equivalent to the line export
PATH=$UNSPOOF_PATH
but I can't find anything in the Yocto documentation or mailing
lists that
would be equivalent to that.


Any help would be much appreciated!

You might try this out

https://github.com/kraj/meta-himvis/blob/master/recipes-kernel/linux-
backports/linux-backports_4.14-rc4.bb

it does not work out of box but with few fixes here and there it
should work


It looks like that recipe inherits backports_module and kernel-
backports_module-split.. do I need those files as well?



backports_module is merged into recipe itsellf. Other one can be
replaced with inehrtiting
module bbclasss








Thanks


Marlon


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