poky/meta/recipes-kernel/linux/linux-yocto-rt_4.18.bb

KBRANCH ?= "v4.18/standard/preempt-rt/base"

require recipes-kernel/linux/linux-yocto.inc

# Skip processing of this recipe if it is not explicitly specified as the
# PREFERRED_PROVIDER for virtual/kernel. This avoids errors when trying
# to build multiple virtual/kernel providers, e.g. as dependency of
# core-image-rt-sdk, core-image-rt.
python () {
    if d.getVar("KERNEL_PACKAGE_NAME") == "kernel" and d.getVar("PREFERRED_PROVIDER_virtual/kernel") != "linux-yocto-rt":
        raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
}

SRCREV_machine ?= "6228ee37a46479d624e608c572d241f74eee11b6"
SRCREV_meta ?= "8f4a98c93851f7f83d796aae2871df2798b8d917"

SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine \
           git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-4.18;destsuffix=${KMETA}"

LINUX_VERSION ?= "4.18.21"

LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"

DEPENDS += "${@bb.utils.contains('ARCH', 'x86', 'elfutils-native', '', d)}"
DEPENDS += "openssl-native util-linux-native"

PV = "${LINUX_VERSION}+git${SRCPV}"

KMETA = "kernel-meta"
KCONF_BSP_AUDIT_LEVEL = "2"

LINUX_KERNEL_TYPE = "preempt-rt"

COMPATIBLE_MACHINE = "(qemux86|qemux86-64|qemuarm|qemuarm64|qemuppc|qemumips)"

KERNEL_DEVICETREE_qemuarm = "versatile-pb.dtb"

# Functionality flags
KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc features/taskstats/taskstats.scc"
KERNEL_FEATURES_append = " ${KERNEL_EXTRA_FEATURES}"
KERNEL_FEATURES_append_qemuall=" cfg/virtio.scc"
KERNEL_FEATURES_append_qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc cfg/paravirt_kvm.scc"