ffff37f8f9
The bblayer abstraction makes it where multiple layers can be
configured and used at the same time. Some layers make changes to
support a specific machine, and should not have any affect when other
machines are in use.
For linux-yocto, all bsps are created with a user-config.cfg and
user-config.cfg and user-patches.scc. This means that those files
will be pulled from the first location found, which might correspond
to files customized for a different machine.
Instead of using the names user-config.cfg and user-patches.scc, I
propose a machine specific name be used such as
{{=machine}}user-patches.scc and {{=machine}}user-config.cfg. This
would necessitate that all references changed to these new names,
which would affect the yocto-bsp and yocto-kernel scripts.
With this change, it would be possible to have multiple machine BSPs
searched at the same time and to select which to build against by
using a command like MACHINE=qmeux86 bitbake core-image-sato to
override the default.
Note many of the standard BSPs do not seem to suffer this problem as
they do not use the common files user-config.cfg and user-patches.scc
that the yocto-* scripts depend upon.
Additions by Tom Zanussi:
- renamed user-config.cfg to {{=machine}}-user-config.cfg everywhere
- renamed user-patches.scc to {{=machine}}-user-patches.scc everywhere
- added the user-config/patches SRC_URI items to the qemu -rt kernel recipes
- fixed conflicts due to the new open_user_file() helper function
- updated user filename conflicts caused by directory renaming
- updated custom kernel files to match
Fixes [YOCTO #3731]
(From meta-yocto rev: c20bef60aa8d52971fb061d4b8d473ad19c03180)
Signed-off-by: Brian A. Lloyd <brian.lloyd@familyhonor.net>
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
|
||
|---|---|---|
| bitbake | ||
| documentation | ||
| meta | ||
| meta-hob | ||
| meta-skeleton | ||
| meta-yocto | ||
| meta-yocto-bsp | ||
| scripts | ||
| .gitignore | ||
| LICENSE | ||
| README | ||
| README.hardware | ||
| oe-init-build-env | ||
README
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/
Where to Send Patches
=====================
As Poky is an integration repository, patches against the various components
should be sent to their respective upstreams.
bitbake:
bitbake-devel@lists.openembedded.org
meta-yocto:
poky@yoctoproject.org
Most everything else should be sent to the OpenEmbedded Core mailing list. If
in doubt, check the oe-core git repository for the content you intend to modify.
Before sending, be sure the patches apply cleanly to the current oe-core git
repository.
openembedded-core@lists.openembedded.org
Note: The scripts directory should be treated with extra care as it is a mix
of oe-core and poky-specific files.