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Building Zephyr Images via bitbake recipes
==========================================
Prerequisites:
Modify local conf by adding:
DISTRO="zephyr"
Add "meta-zephyr" to BBLAYERS
Building and Running Zephyr tests
=================================
Presently only toolchains for ARM and x86 are supported.
(For ARM we use CortexM3 toolchain)
Default Zephyr BOARD is selected as follows:
BOARD_arm ?= "qemu_cortex_m3"
BOARD_x86 ?= "qemu_x86"
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=qemux86 bitbake zephyr-kernel-test-test_sleep
$ MACHINE=qemux86 bitbake zephyr-kernel-test-test_sleep -ctestimage
You can also build and run all Zephyr existing tests (as slisted in the file
zephyr-kernel-test.inc). For example:
$ MACHINE=qemux86 bitbake zephyr-kernel-test-all
$ MACHINE=qemux86 bitbake zephyr-kernel-test-all -ctestimage
or
$ MACHINE=qemu-cortex-m3 bitbake zephyr-kernel-test-all
$ MACHINE=qemu-cortex-m3 bitbake zephyr-kernel-test-all -ctestimage
Building and Running Zephyr Samples
===================================
You can also build Zephyr samples. There is a sample recipe that builds
Zephyr "philosophers" sample:
$ MACHINE=qemux86 bitbake zephyr-philosophers
You can run the created "philosophers" image in qemu (at this point
the various paths have to be entered manually):
$ ./tmp/sysroots/x86_64-linux/usr/bin/qemu-system-i386 \
-kernel ./tmp/deploy/images/qemux86/philosophers.elf \
-nographic -machine type=pc-0.14 -display none -clock dynticks \
-no-acpi -balloon none
The same sample, for ARM image:
$ MACHINE=qemu-cortex-m3 bitbake zephyr-philosophers
$ ./tmp/sysroots/x86_64-linux/usr/bin/qemu-system-arm \
-kernel ./tmp/deploy/images/qemu-cortex-m3/philosophers.elf \
-cpu cortex-m3 -machine lm3s6965evb -nographic -vga none
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