Quentin Schulz 51ffd381e3 uboot-extlinux-config.bbclass: invalidate do_create_extlinux_config on changes to UBOOT_EXTLINUX_FDTOVERLAYS:x
do_create_extlinux_config is using a bit of an odd mechanism which
doesn't work well with sstate cache invalidation.

BitBake will detect changes to UBOOT_EXTLINUX_FDTOVERLAYS because it's
explicitly mentioned in the task, but it'll miss changes to
UBOOT_EXTLINUX_FDTOVERLAYS:label because this OVERRIDES is set within
the task, so the value of UBOOT_EXTLINUX_FDTOVERLAYS for the label
OVERRIDES will only ever change from within the task, while it is
running, much later than during parsing.

For that to work properly, we need to add the entire variable (including
the OVERRIDES part) to the vardeps varflag of the task so that its value
is monitored. This is already done for all possible label variables but
FDTOVERLAYS was forgotten.

Fixes: 3ac21b32b5f5 ("uboot-extlinux-config.bbclass: add support for DTBOs")
(From OE-Core rev: a41fd633786a2404b5eee399ed0602e229c4be77)

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-01-20 13:39:00 +00:00
2024-02-19 11:34:33 +00:00
2021-07-19 18:07:21 +01:00
2023-10-19 11:31:13 +01:00

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/):

BitBake (files in bitbake/):

Documentation (files in documentation/):

meta-yocto (files in meta-poky/, meta-yocto-bsp/):

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.

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