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Building Zephyr Images via bitbake recipes
==========================================
More detailed and up-to-date information can be found here:
https://wiki.yoctoproject.org/wiki/TipsAndTricks/BuildingZephyrImages
Prerequisites:
==============
This layer depends on:
Yocto distro (gatesgarth)
git://git.yoctoproject.org/poky
Python layer (meta-openembedded/meta-python) (gatesgarth)
git://git.openembedded.org/meta-openembedded
Modify local conf by adding:
DISTRO="zephyr"
Add "meta-openembedded/meta-oe" to BBLAYERS
Add "meta-openembedded/meta-python" to BBLAYERS
Add "meta-zephyr" to BBLAYERS
Building and Running Zephyr Samples
===================================
You can build Zephyr samples. There are several sample recipes.
For example, to build the Zephyr "philosophers" sample:
$ MACHINE=qemu-x86 bitbake zephyr-philosophers
You can then run the created "philosophers" image in qemu:
$ runqemu qemu-x86
The same sample, for ARM image:
$ MACHINE=qemu-cortex-m3 bitbake zephyr-philosophers
$ runqemu qemu-cortex-m3
The same sample, for Nios2 image:
$ MACHINE=qemu-nios2 bitbake zephyr-philosophers
$ runqemu qemu-nios2
Building and Running Zephyr Tests
=================================
Presently only toolchains for ARM, x86, IAMCU and Nios2 are supported.
(For ARM we use CortexM3 toolchain)
To run Zephyr Test using Yocto Image Tests, ensure following in local.conf:
INHERIT += "testimage"
You can build and test an individual existing Zephyr test.
This is done by appending the actual test name to the "zephyr-kernel-test",
for example:
$ MACHINE=qemu-x86 bitbake zephyr-kernel-test-sleep
$ MACHINE=qemu-x86 bitbake zephyr-kernel-test-sleep -c testimage
You can also build and run all Zephyr existing tests (as listed in the file
zephyr-kernel-test.inc). For example:
$ MACHINE=qemu-x86 bitbake zephyr-kernel-test-all
$ MACHINE=qemu-x86 bitbake zephyr-kernel-test-all -c testimage
or
$ MACHINE=qemu-cortex-m3 bitbake zephyr-kernel-test-all
$ MACHINE=qemu-cortex-m3 bitbake zephyr-kernel-test-all -c testimage
or
$ MACHINE=qemu-nios2 bitbake zephyr-kernel-test-all
$ MACHINE=qemu-nios2 bitbake zephyr-kernel-test-all -c testimage
Contributing
============
Patches for meta-zephyr should be sent to the yocto@lists.yoctoproject.org
mailing list. See https://lists.yoctoproject.org/g/yocto for subscription
details and the list archive. Please add [meta-zephyr] to the subject so
the patches are identifable.
Git can be configured to send mails appropriately when using git send-email:
$ git config --local sendemail.to yocto@lists.yoctoproject.org
$ git config --local format.subjectPrefix meta-zephy][PATCH
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