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arm-autonomy/classes: Introduce alternate-kernel.bbclass

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The alternate-kernel.bbclass is to be inherited by image recipes that want to
build and install an alternate kernel (set via
PREFERRED_PROVIDER_alternate/kernel).

It is mandatory to also set the KERNEL_PACKAGE_NAME for the alternate kernel
recipe via KERNEL_PACKAGE_NAME_pn-${PREFERRED_PROVIDER_alternate/kernel} and
its value needs to be different from "kernel" since this is the default set
for PREFERRED_PROVIDER_virtual/kernel.

When building and installing an alternate kernel, the kernel-modules packages
for both virtual/kernel and alternate/kernel will be installed.

Change-Id: I1cd0c425c39206fe449fb5f8761ed6de95cfb442
Issue-Id: SCM-1654
Signed-off-by: Diego Sueiro <diego.sueiro@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Diego Sueiro
2020-11-17 10:04:44 +00:00
committed by Jon Mason
parent 3c738c4f69
commit 171616a183
1 changed files with 26 additions and 0 deletions
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meta-arm-autonomy/classes/alternate-kernel.bbclass
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# This class is to be inherited by image recipes that want to build and install
# an alternate kernel (set via PREFERRED_PROVIDER_alternate/kernel).
#
# It is mandatory to also set the KERNEL_PACKAGE_NAME for the alternate kernel
# recipe via KERNEL_PACKAGE_NAME_pn-${PREFERRED_PROVIDER_alternate/kernel} and
# its value needs to be different from "kernel" since this is the default set
# for PREFERRED_PROVIDER_virtual/kernel.
#
# An example of these settings can be found at meta-arm-autonomy/dynamic-layers/meta-arm-bsp/conf/machine/n1sdp-extra-settings.inc
#
# When building and installing an alternate kernel, the kernel-modules packages
# for both virtual/kernel and alternate/kernel will be installed.
PREFERRED_PROVIDER_alternate/kernel ??= ""
python () {
alternate_kernel = d.getVar('PREFERRED_PROVIDER_alternate/kernel')
if alternate_kernel:
alternate_kernel_pkg_name = d.getVar('KERNEL_PACKAGE_NAME_pn-%s' % alternate_kernel)
if alternate_kernel_pkg_name:
d.appendVar('EXTRA_IMAGEDEPENDS', ' ' + alternate_kernel)
d.appendVar('IMAGE_INSTALL', ' kernel-modules')
d.appendVar('IMAGE_INSTALL', ' ' + alternate_kernel_pkg_name + '-modules')
else:
raise bb.parse.SkipRecipe("No KERNEL_PACKAGE_NAME_pn-%s set" % alternate_kernel )
}