Integration
The Reference Software Stack uses the Yocto Project build framework to build, integrate and validate the Use-Cases.
The Yocto Project version used by the Reference Software Stack is scarthgap.
meta-arm-bsp-extras Yocto Layer
The meta-arm-bsp-extras
layer primarily depends on the meta-arm
layer
which implements the fvp-rd-kronos
bitbake MACHINE
definition to enable
the Arm Automotive Solutions to run on the Arm Reference Design-1 AE FVP
(FVP_RD_1_AE).
meta-arm-auto-solutions Yocto Layer
The meta-arm-auto-solutions
layer is based on the EWAOL distribution.
It also contains a set of bitbake bbclasses, recipes and libraries to build,
integrate, and validate the Use-Cases with either or both the
Baremetal and Virtualization Reference Software Stack Architectures
as described in Reference Software Stack Overview.
It depends on a BSP layer such as the meta-arm-bsp-extras
layer.
The layer source code can be found at yocto/meta-arm-auto-solutions.
meta-arm-safety-island Yocto Layer
The layer meta-arm-safety-island
integrates the applications for the Safety
Island using base configuration from the meta-zephyr-core
Yocto layer. It
also contains recipes for the Linux kernel modules for inter-processor
communication with the Safety Island.
The layer source code can be found at yocto/meta-arm-safety-island.
Yocto Build Configuration
A set of yaml
configuration files (found at yocto/kas) for
the kas build tool is provided to support bitbake layer fetching, project
configuration and executing the build and validation.
Yocto Layers Dependency
The following diagram illustrates the layers which are integrated as part of the Reference Software Stack.
Note that the meta-arm-systemready
layer is only required when building
for the Arm SystemReady IR ACS tests.
The layer dependency sources and their revisions for the kronos
repository
(https://gitlab.arm.com/automotive-and-industrial/arm-auto-solutions/sw-ref-stack) v1.1 branch are:
URL: https://git.yoctoproject.org/meta-arm layers: meta-arm, meta-arm-bsp, meta-arm-systemready, meta-arm-toolchain branch: scarthgap revision: 38bce82e42ea093333a53c4a10e51d1b26cbc989 URL: https://gitlab.com/Linaro/cassini/meta-cassini layers: meta-cassini-distro, meta-cassini-tests branch: scarthgap revision: bef1d728c6db464ff89828afae5b51e648058f35 URL: https://github.com/kraj/meta-clang layers: meta-clang branch: scarthgap revision: 0acff283249842eb1f617b20c2ed4ebf9f8e3557 URL: https://gitlab.com/soafee/ewaol/meta-ewaol layers: meta-ewaol branch: scarthgap revision: c28142e72691202ba55a954f0faaed4375615b68 URL: https://git.openembedded.org/meta-openembedded layers: meta-filesystems, meta-networking, meta-oe, meta-python, meta-perl branch: scarthgap revision: 78a14731cf0cf38a19ff8bd0e9255b319afaf3a7 URL: https://github.com/pengutronix/meta-ptx layers: meta-ptx branch: scarthgap revision: 547b079bf309ebe1576aa5ae0d58564feb245a42 URL: https://github.com/Wind-River/meta-secure-core layers: meta-secure-core-common, meta-efi-secure-boot, meta-signing-key branch: scarthgap revision: f3f928d097917b8a131044fe718440eb7f7e381b URL: https://git.yoctoproject.org/git/meta-security layers: meta-parsec branch: scarthgap revision: 11ea91192d43d7c2b0b95a93aa63ca7e73e38034 URL: https://git.yoctoproject.org/git/meta-virtualization layers: meta-virtualization branch: scarthgap revision: 37c06acf58f9020bccfc61954eeefe160642d5f3 URL: https://git.yoctoproject.org/git/meta-zephyr layers: meta-zephyr-core branch: scarthgap revision: 763c72fc3088fc09ccfde6edfcdad43811d16616 URL: https://git.yoctoproject.org/git/poky layers: meta, meta-poky branch: scarthgap revision: ca27724b44031fe11b631ee50eb1e20f7a60009d