Angstrom kernel development howto

GoogleGroups
1

I want to experiment with some kernel patches for beagle (twl4030
sound). Is there a good howto on this?

Can openembedded help construct the kernel development environment?

2

I want to experiment with some kernel patches for beagle (twl4030
sound). Is there a good howto on this?

Basically: add your patches to the recipe, build, test, repeat.

regards,

Koen

3

But in terms of developing the patches? Should that be done within the
openembedded area or in a completely separate code tree?

Is there a simple way to use openembedded to construct the code tree
from its recipe to use that as the basis for patch development?

4

I want to experiment with some kernel patches for beagle (twl4030
sound). Is there a good howto on this?

Basically: add your patches to the recipe, build, test, repeat.

But in terms of developing the patches? Should that be done within the
openembedded area or in a completely separate code tree?

Most of the time I develop in the oe work dir.

Is there a simple way to use openembedded to construct the code tree
from its recipe to use that as the basis for patch development?

bitbake virtual/kernel -cpatch

This will apply all patches but not compile.
You might want to familiarize yourself with quilt if you are not already
(or make a copy of the source dir so you can diff later).

Have fun!
Frans

5

What I do, is use this script

http://gitorious.org/vjaquez-beagleboard/marmita/blobs/master/scripts/marmita-simple-cross-compiling-env

To get a simple cross compiling environment using the toolchain
created by openembedded, and then I can use git for my normal
workflow.

The patches generated by git format-patch can be used in your oe recipes.

vmjl

6

Thanks for that.