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DESCRIPTION = "Linux Kernel"
SECTION = "kernel"
LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"
inherit kernel siteinfo
# Specify the commandline for your device
# Set the verbosity of kernel messages during runtime
# You can define CMDLINE_DEBUG in your local.conf or distro.conf to override this behaviour
CMDLINE_DEBUG ?= '${@oe.utils.conditional("DISTRO_TYPE", "release", "quiet", "debug", d)}'
CMDLINE_append = " ${CMDLINE_DEBUG} "
# Kernel bootlogo is distro-specific (default is OE logo).
# Logo resolution (qvga, vga, ...) is machine-specific.
LOGO_SIZE ?= "."
ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-devicetree = "1"
python __anonymous () {
import bb
devicetree = d.getVar('KERNEL_DEVICETREE', True) or ''
if devicetree:
depends = d.getVar("DEPENDS", True)
d.setVar("DEPENDS", "%s dtc-native" % depends)
}
do_configure_prepend() {
if [ -e ${WORKDIR}/defconfig ] ; then
# Rename getline in ./scripts/unifdef.c
# Kernels up to 2.6.29 are currently failing to build unifdef.c,
# clashing with exposed getline() from <stdio.h>
# see https://patchwork.kernel.org/patch/11166/
# committed in 2.6.29 (commit d15bd1067b1fcb2b7250d22bc0c7c7fea0b759f7)
sed -i -e 's/getline/parseline/g' ${S}/scripts/unifdef.c
echo "" > ${B}/.config
#
# logo support, if you supply logo_linux_clut224.ppm in SRC_URI, then it's going to be used
#
if [ -e ${WORKDIR}/${LOGO_SIZE}/logo_linux_clut224.ppm ]; then
install -m 0644 ${WORKDIR}/${LOGO_SIZE}/logo_linux_clut224.ppm drivers/video/logo/logo_linux_clut224.ppm
echo "CONFIG_LOGO=y" >> ${B}/.config
echo "CONFIG_LOGO_LINUX_CLUT224=y" >> ${B}/.config
fi
# Enable thumb2 fixup for specific issue in angstrom toolchains when used on A8 r1p[012] silicon
if [ "${CORTEXA8FIXUP}" = "yes" ] ; then
sed -i -e /CONFIG_ARM_ERRATA_430973/d ${WORKDIR}/defconfig
echo "CONFIG_ARM_ERRATA_430973=y" >> ${B}/.config
fi
#
# endian support
#
if [ "${SITEINFO_ENDIANNESS}" = "be" ]; then
echo "CONFIG_CPU_BIG_ENDIAN=y" >> ${B}/.config
fi
echo "CONFIG_CMDLINE=\"${CMDLINE}\"" >> ${B}/.config
sed -e '/CONFIG_OABI_COMPAT=/d' \
-e '/CONFIG_CMDLINE=/d' \
-e '/CONFIG_CPU_BIG_ENDIAN/d' \
-e '/CONFIG_LOGO=/d' \
-e '/CONFIG_LOGO_LINUX_CLUT224=/d' \
-e '/CONFIG_LOCALVERSION/d' \
-e '/CONFIG_LOCALVERSION_AUTO/d' \
< '${WORKDIR}/defconfig' >>'${B}/.config'
echo 'CONFIG_LOCALVERSION=""' >>${B}/.config
echo '# CONFIG_LOCALVERSION_AUTO is not set' >>${B}/.config
#
# Udev quirks
#
# Newer versions of udev mandate that sysfs doesn't have deprecated entries
sed -e /CONFIG_SYSFS_DEPRECATED/d \
-e /CONFIG_SYSFS_DEPRECATED_V2/d \
-e /CONFIG_HOTPLUG/d \
-e /CONFIG_UEVENT_HELPER_PATH/d \
-e /CONFIG_UNIX/d \
-e /CONFIG_SYSFS/d \
-e /CONFIG_PROC_FS/d \
-e /CONFIG_TMPFS/d \
-e /CONFIG_INOTIFY_USER/d \
-e /CONFIG_SIGNALFD/d \
-e /CONFIG_TMPFS_POSIX_ACL/d \
-e /CONFIG_BLK_DEV_BSG/d \
-e /CONFIG_AUTOFS4_FS/d \
-i '${B}/.config'
echo '# CONFIG_SYSFS_DEPRECATED is not set' >> ${B}/.config
echo '# CONFIG_SYSFS_DEPRECATED_V2 is not set' >> ${B}/.config
echo 'CONFIG_HOTPLUG=y' >> ${B}/.config
echo 'CONFIG_UEVENT_HELPER_PATH=""' >> ${B}/.config
echo 'CONFIG_UNIX=y' >> ${B}/.config
echo 'CONFIG_SYSFS=y' >> ${B}/.config
echo 'CONFIG_PROC_FS=y' >> ${B}/.config
echo 'CONFIG_TMPFS=y' >> ${B}/.config
echo 'CONFIG_INOTIFY_USER=y' >> ${B}/.config
echo 'CONFIG_SIGNALFD=y' >> ${B}/.config
echo 'CONFIG_TMPFS_POSIX_ACL=y' >> ${B}/.config
echo 'CONFIG_BLK_DEV_BSG=y' >> ${B}/.config
echo 'CONFIG_DEVTMPFS=y' >> ${B}/.config
echo 'CONFIG_DEVTMPFS_MOUNT=y' >> ${B}/.config
echo 'CONFIG_AUTOFS4_FS=y' >> ${B}/.config
# Newer inits like systemd need cgroup support
sed -e /CONFIG_CGROUP_SCHED/d \
-e /CONFIG_CGROUPS/d \
-i '${B}/.config'
echo 'CONFIG_CGROUP_SCHED=y' >> ${B}/.config
echo 'CONFIG_CGROUPS=y' >> ${B}/.config
echo 'CONFIG_CGROUP_NS=y' >> ${B}/.config
echo 'CONFIG_CGROUP_FREEZER=y' >> ${B}/.config
echo 'CONFIG_CGROUP_DEVICE=y' >> ${B}/.config
echo 'CONFIG_CPUSETS=y' >> ${B}/.config
echo 'CONFIG_PROC_PID_CPUSET=y' >> ${B}/.config
echo 'CONFIG_CGROUP_CPUACCT=y' >> ${B}/.config
echo 'CONFIG_RESOURCE_COUNTERS=y' >> ${B}/.config
#
# root-over-nfs-over-usb-eth support. Limited, but should cover some cases.
# Enable this by setting a proper CMDLINE_NFSROOT_USB.
#
if [ ! -z "${CMDLINE_NFSROOT_USB}" ]; then
oenote "Configuring the kernel for root-over-nfs-over-usb-eth with CMDLINE ${CMDLINE_NFSROOT_USB}"
sed -e '/CONFIG_INET/d' \
-e '/CONFIG_IP_PNP=/d' \
-e '/CONFIG_USB_GADGET=/d' \
-e '/CONFIG_USB_GADGET_SELECTED=/d' \
-e '/CONFIG_USB_ETH=/d' \
-e '/CONFIG_NFS_FS=/d' \
-e '/CONFIG_ROOT_NFS=/d' \
-e '/CONFIG_CMDLINE=/d' \
-i ${B}/.config
echo "CONFIG_INET=y" >> ${B}/.config
echo "CONFIG_IP_PNP=y" >> ${B}/.config
echo "CONFIG_USB_GADGET=y" >> ${B}/.config
echo "CONFIG_USB_GADGET_SELECTED=y" >> ${B}/.config
echo "CONFIG_USB_ETH=y" >> ${B}/.config
echo "CONFIG_NFS_FS=y" >> ${B}/.config
echo "CONFIG_ROOT_NFS=y" >> ${B}/.config
echo "CONFIG_CMDLINE=\"${CMDLINE_NFSROOT_USB}\"" >> ${B}/.config
fi
echo 'CONFIG_FHANDLE=y' >> ${B}/.config
# Check for kernel config fragments. The assumption is that the config
# fragment will be specified with the absolute path. For example:
# * ${WORKDIR}/config1.cfg
# * ${S}/config2.cfg
# Iterate through the list of configs and make sure that you can find
# each one. If not then error out.
# NOTE: If you want to override a configuration that is kept in the kernel
# with one from the OE meta data then you should make sure that the
# OE meta data version (i.e. ${WORKDIR}/config1.cfg) is listed
# after the in kernel configuration fragment.
# Check if any config fragments are specified.
if [ ! -z "${KERNEL_CONFIG_FRAGMENTS}" ]
then
for f in ${KERNEL_CONFIG_FRAGMENTS}
do
# Check if the config fragment was copied into the WORKDIR from
# the OE meta data
if [ ! -e "$f" ]
then
echo "Could not find kernel config fragment $f"
exit 1
fi
done
# Now that all the fragments are located merge them.
( cd ${WORKDIR} && ${S}/scripts/kconfig/merge_config.sh -m -r -O ${B} ${B}/.config ${KERNEL_CONFIG_FRAGMENTS} 1>&2 )
fi
yes '' | oe_runmake -C ${S} O=${B} oldconfig
oe_runmake -C ${S} O=${B} savedefconfig && cp ${B}/defconfig ${WORKDIR}/defconfig.saved
fi
}
do_configure_append() {
if test -e scripts/Makefile.fwinst ; then
sed -i -e "s:-m0644:-m 0644:g" scripts/Makefile.fwinst
fi
}
# bitbake.conf only prepends PARALLEL make in tasks called do_compile, which isn't the case for compile_modules
# So explicitly enable it for that in here
EXTRA_OEMAKE = "${PARALLEL_MAKE} "
do_install_append() {
install -d ${D}/boot
make -C ${S} O=${B} ARCH=$ARCH dtbs || true
install -m 0644 ${B}/arch/$ARCH/boot/dts/*.dtb ${D}/boot || true
rm -f ${D}${KERNEL_SRC_PATH}/arch/*/vdso/vdso*.so
}
PACKAGES =+ "${KERNEL_PACKAGE_NAME}-devicetree-overlays"
FILES_${KERNEL_PACKAGE_NAME}-devicetree-overlays = "/lib/firmware/*.dtbo /lib/firmware/*.dts"
FILES_${KERNEL_PACKAGE_NAME}-devicetree += "/boot/*.dtb"
RDEPENDS_${KERNEL_PACKAGE_NAME}-image_append = " ${KERNEL_PACKAGE_NAME}-devicetree"
RRECOMMENDS_${KERNEL_PACKAGE_NAME}-image_append = " ${KERNEL_PACKAGE_NAME}-devicetree-overlays"
# Automatically depend on lzop/lz4-native if CONFIG_KERNEL_LZO/LZ4 is enabled
python () {
try:
defconfig = bb.fetch2.localpath('file://defconfig', d)
except bb.fetch2.FetchError:
return
try:
configfile = open(defconfig)
except IOError:
return
if 'CONFIG_KERNEL_LZO=y\n' in configfile.readlines():
depends = d.getVar('DEPENDS', False)
d.setVar('DEPENDS', depends + ' lzop-native')
if 'CONFIG_KERNEL_LZ4=y\n' in configfile.readlines():
depends = d.getVar('DEPENDS', False)
d.setVar('DEPENDS', depends + ' lz4-native')
}
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