8ca1fd0b72
This adds the support for the barebox bootloader to oe-core. The recipe is inspired by meta-ptx [1] but is a major rework of the one found there. Barebox comes with a wide range of supported architectures and follows the concepts of Linux in various aspects like the driver model, the shell, or the virtual file system. This not only eases porting Linux drivers but also makes barebox a developer-friendly and feature-rich bootloader alternative [2]. For barebox (like for the kernel or other bootloaders) it is quite likely that people will not just build the original recipe but need to adapt it, point to custom repositories, apply patch stacks, COMPATIBLE_MACHINE etc. They may also choose to have different recipe names for different variants. Having only a single .bb file and requiring to copy or .bbappend it is inconvenient and results in unnecessary code duplication. Therefore, the base support for building barebox is encapsulated in barebox.bbclass (like kernel.bbclass for the kernel). Adds barebox to maintainers.inc but excludes it from the maintainers check since with the current check mechanism barebox would be skipped (and making the check fail) due to not being the PREFERRED_PROVIDER for virtual/bootloader. [1] https://github.com/pengutronix/meta-ptx/tree/master/recipes-bsp/barebox [2] https://www.barebox.org/demo/?graphic=0 (From OE-Core rev: 5c69f5626278a6e9756188a5771b18075380f52d) Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for 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 BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/
OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.
Contribution Guidelines
Please refer to our contributor guide here: https://docs.yoctoproject.org/dev/contributor-guide/ for full details on how to submit changes.
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):
- Git repository: https://git.openembedded.org/openembedded-core/
- Mailing list: openembedded-core@lists.openembedded.org
BitBake (files in bitbake/):
- Git repository: https://git.openembedded.org/bitbake/
- Mailing list: bitbake-devel@lists.openembedded.org
Documentation (files in documentation/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/
- Mailing list: docs@lists.yoctoproject.org
meta-yocto (files in meta-poky/, meta-yocto-bsp/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto
- Mailing list: poky@lists.yoctoproject.org
If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.