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Andrew Geissler95ac1b82021-03-31 14:34:31 -05001SUMMARY = "An example kernel recipe that uses the linux-yocto and oe-core"
Patrick Williamsc124f4f2015-09-15 14:41:29 -05002# linux-yocto-custom.bb:
3#
Patrick Williamsc124f4f2015-09-15 14:41:29 -05004# kernel classes to apply a subset of yocto kernel management to git
5# managed kernel repositories.
6#
7# To use linux-yocto-custom in your layer, copy this recipe (optionally
8# rename it as well) and modify it appropriately for your machine. i.e.:
9#
10# COMPATIBLE_MACHINE_yourmachine = "yourmachine"
11#
12# You must also provide a Linux kernel configuration. The most direct
13# method is to copy your .config to files/defconfig in your layer,
14# in the same directory as the copy (and rename) of this recipe and
15# add file://defconfig to your SRC_URI.
16#
17# To use the yocto kernel tooling to generate a BSP configuration
18# using modular configuration fragments, see the yocto-bsp and
19# yocto-kernel tools documentation.
20#
21# Warning:
22#
23# Building this example without providing a defconfig or BSP
24# configuration will result in build or boot errors. This is not a
25# bug.
26#
27#
28# Notes:
29#
30# patches: patches can be merged into to the source git tree itself,
31# added via the SRC_URI, or controlled via a BSP
32# configuration.
33#
34# defconfig: When a defconfig is provided, the linux-yocto configuration
35# uses the filename as a trigger to use a 'allnoconfig' baseline
36# before merging the defconfig into the build.
37#
38# If the defconfig file was created with make_savedefconfig,
39# not all options are specified, and should be restored with their
40# defaults, not set to 'n'. To properly expand a defconfig like
41# this, specify: KCONFIG_MODE="--alldefconfig" in the kernel
42# recipe.
43#
44# example configuration addition:
45# SRC_URI += "file://smp.cfg"
Patrick Williamsf1e5d692016-03-30 15:21:19 -050046# example patch addition (for kernel v4.x only):
47# SRC_URI += "file://0001-linux-version-tweak.patch"
48# example feature addition (for kernel v4.x only):
Patrick Williamsc124f4f2015-09-15 14:41:29 -050049# SRC_URI += "file://feature.scc"
50#
51
52inherit kernel
53require recipes-kernel/linux/linux-yocto.inc
54
55# Override SRC_URI in a copy of this recipe to point at a different source
56# tree if you do not want to build from Linus' tree.
57SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git;protocol=git;nocheckout=1;name=machine"
58
Patrick Williamsf1e5d692016-03-30 15:21:19 -050059LINUX_VERSION ?= "4.2"
60LINUX_VERSION_EXTENSION_append = "-custom"
Patrick Williamsc124f4f2015-09-15 14:41:29 -050061
62# Modify SRCREV to a different commit hash in a copy of this recipe to
63# build a different release of the Linux kernel.
Patrick Williamsf1e5d692016-03-30 15:21:19 -050064# tag: v4.2 64291f7db5bd8150a74ad2036f1037e6a0428df2
65SRCREV_machine="64291f7db5bd8150a74ad2036f1037e6a0428df2"
Patrick Williamsc124f4f2015-09-15 14:41:29 -050066
Patrick Williamsc124f4f2015-09-15 14:41:29 -050067PV = "${LINUX_VERSION}+git${SRCPV}"
68
69# Override COMPATIBLE_MACHINE to include your machine in a copy of this recipe
70# file. Leaving it empty here ensures an early explicit build failure.
71COMPATIBLE_MACHINE = "(^$)"