diff options
Diffstat (limited to 'meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb')
| -rw-r--r-- | meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb | 77 |
1 files changed, 52 insertions, 25 deletions
diff --git a/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb b/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb index 55f0c38c03..6194d4f8da 100644 --- a/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb +++ b/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb @@ -1,44 +1,71 @@ # linux-yocto-custom.bb: # -# Provides an example/minimal kernel recipe that uses the linux-yocto -# and oe-core kernel classes to apply a subset of yocto kernel -# management to git managed kernel repositories. +# An example kernel recipe that uses the linux-yocto and oe-core +# kernel classes to apply a subset of yocto kernel management to git +# managed kernel repositories. +# +# To use linux-yocto-custom in your layer, copy this recipe (optionally +# rename it as well) and modify it appropriately for your machine. i.e.: +# +# COMPATIBLE_MACHINE_yourmachine = "yourmachine" +# +# You must also provide a Linux kernel configuration. The most direct +# method is to copy your .config to files/defconfig in your layer, +# in the same directory as the copy (and rename) of this recipe and +# add file://defconfig to your SRC_URI. +# +# To use the yocto kernel tooling to generate a BSP configuration +# using modular configuration fragments, see the yocto-bsp and +# yocto-kernel tools documentation. +# +# Warning: +# +# Building this example without providing a defconfig or BSP +# configuration will result in build or boot errors. This is not a +# bug. +# # # Notes: # -# kconfig(s): the kernel must be configured with a defconfig, or via -# configuration fragment(s). Either of these can be added -# via bbappend. -# patches: patches can be merged into to the source git tree itself, added -# using standard bbappend syntax or controlled via .scc feature -# descriptions (also via bbappends) +# patches: patches can be merged into to the source git tree itself, +# added via the SRC_URI, or controlled via a BSP +# configuration. +# +# defconfig: When a defconfig is provided, the linux-yocto configuration +# uses the filename as a trigger to use a 'allnoconfig' baseline +# before merging the defconfig into the build. +# +# If the defconfig file was created with make_savedefconfig, +# not all options are specified, and should be restored with their +# defaults, not set to 'n'. To properly expand a defconfig like +# this, specify: KCONFIG_MODE="--alldefconfig" in the kernel +# recipe. # # example configuration addition: # SRC_URI += "file://smp.cfg" -# example patch addition (for kernel v3.4 only): -# SRC_URI += "file://0001-linux-version-tweak.patch -# example feature addition (for kernel v3.4 only): +# example patch addition (for kernel v4.x only): +# SRC_URI += "file://0001-linux-version-tweak.patch" +# example feature addition (for kernel v4.x only): # SRC_URI += "file://feature.scc" # -# Warning: -# -# Building the sample kernel tree (kernel.org) without providing any -# configuration will result in build or boot errors. This is not a bug -# it is a required element for creating a valid kernel. -# inherit kernel require recipes-kernel/linux/linux-yocto.inc -SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git;protocol=git;nocheckout=1" +# Override SRC_URI in a copy of this recipe to point at a different source +# tree if you do not want to build from Linus' tree. +SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git;protocol=git;nocheckout=1;name=machine" -LINUX_VERSION ?= "3.4" -LINUX_VERSION_EXTENSION ?= "-custom" +LINUX_VERSION ?= "4.2" +LINUX_VERSION_EXTENSION_append = "-custom" -# tag: v3.4 76e10d158efb6d4516018846f60c2ab5501900bc -SRCREV="76e10d158efb6d4516018846f60c2ab5501900bc" +# Modify SRCREV to a different commit hash in a copy of this recipe to +# build a different release of the Linux kernel. +# tag: v4.2 64291f7db5bd8150a74ad2036f1037e6a0428df2 +SRCREV_machine="64291f7db5bd8150a74ad2036f1037e6a0428df2" -PR = "r0" PV = "${LINUX_VERSION}+git${SRCPV}" -COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64)" +# Override COMPATIBLE_MACHINE to include your machine in a copy of this recipe +# file. Leaving it empty here ensures an early explicit build failure. +COMPATIBLE_MACHINE = "(^$)" |