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|
DESCRIPTION = "Yocto Kernel"
SECTION = "kernel"
LICENSE = "GPL"
# Set this to 'preempt_rt' in the local.conf if you want a real time kernel
LINUX_KERNEL_TYPE ?= standard
SRCREV_FORMAT = "meta_machine"
PV = "2.6.34+git${SRCPV}"
# To use a staged, on-disk bare clone of a Wind River Kernel, use a
# variant of the below
# SRC_URI = "git://///path/to/kernel/default_kernel.git;fullclone=1"
SRC_URI = "git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;fullclone=1;branch=${KBRANCH};name=machine \
git://git.pokylinux.org/linux-2.6-windriver.git;protocol=git;noclone=1;branch=wrs_meta;name=meta"
# map the poky machine to a 'kernel machine'
KMACHINE = "UNDEFINED"
KMACHINE_qemux86 = "common_pc"
KMACHINE_qemux86-64 = "common_pc_64"
KMACHINE_qemuppc = "qemu_ppc32"
KMACHINE_qemumips = "mti_malta32_be"
KMACHINE_qemuarm = "arm_versatile_926ejs"
KMACHINE_atom-pc = "atom-pc"
KMACHINE_routerstationpro = "routerstationpro"
KMACHINE_mpc8315e-rdb = "fsl-mpc8315e-rdb"
KMACHINE_beagleboard = "beagleboard"
# Determine which branch to fetch and build. Not all branches are in the
# upstream repo (but will be locally created after the fetchers run) so
# a fallback branch needs to be chosen.
#
# The default machine 'UNDEFINED'. If the machine is not set to a specific
# branch in this recipe or in a recipe extension, then we fallback to a
# branch that is always present 'standard'. This sets the KBRANCH variable
# and is used in the SRC_URI. The machine is then set back to ${MACHINE},
# since futher processing will use that to create local branches
python __anonymous () {
import bb, re
bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
mach = bb.data.getVar("KMACHINE", d, 1)
if mach == "UNDEFINED":
bb.data.setVar("KBRANCH", "standard", d)
bb.data.setVar("KMACHINE", "${MACHINE}", d)
# track the global configuration on a bootstrapped BSP
bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
bb.data.setVar("BOOTSTRAP", "t", d)
}
COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64|atom-pc|routerstationpro|mpc8315e-rdb|beagleboard)"
LINUX_VERSION = "v2.6.34"
LINUX_VERSION_EXTENSION = "-wr-${LINUX_KERNEL_TYPE}"
PR = "r13"
S = "${WORKDIR}/linux"
B = "${WORKDIR}/linux-${KMACHINE}-${LINUX_KERNEL_TYPE}-build"
# functionality flags
KERNEL_REVISION_CHECKING ?= "t"
KERNEL_FEATURES=features/netfilter
do_patch() {
cd ${S}
if [ -f ${WORKDIR}/defconfig ]; then
defconfig=${WORKDIR}/defconfig
fi
# simply ensures that a branch of the right name has been created
createme ${ARCH} ${KMACHINE}-${LINUX_KERNEL_TYPE} ${defconfig}
if [ $? -ne 0 ]; then
echo "ERROR. Could not create ${KMACHINE}-${LINUX_KERNEL_TYPE}"
exit 1
fi
# updates or generates the target description
if [ -n "${KERNEL_FEATURES}" ]; then
addon_features="--features ${KERNEL_FEATURES}"
fi
updateme ${addon_features} ${ARCH} ${WORKDIR}
if [ $? -ne 0 ]; then
echo "ERROR. Could not update ${KMACHINE}-${LINUX_KERNEL_TYPE}"
exit 1
fi
# executes and modifies the source tree as required
patchme ${KMACHINE}-${LINUX_KERNEL_TYPE}
if [ $? -ne 0 ]; then
echo "ERROR. Could not modify ${KMACHINE}-${LINUX_KERNEL_TYPE}"
exit 1
fi
}
validate_branches() {
branch_head=`git show-ref -s --heads ${KBRANCH}`
meta_head=`git show-ref -s --heads wrs_meta`
target_branch_head="${SRCREV_machine}"
target_meta_head="${SRCREV_meta}"
if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ]; then
if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
git show ${target_branch_head} > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "Forcing branch ${KMACHINE}-${LINUX_KERNEL_TYPE} to ${target_branch_head}"
git branch -m ${KMACHINE}-${LINUX_KERNEL_TYPE} ${KMACHINE}-${LINUX_KERNEL_TYPE}-orig
git checkout -b ${KMACHINE}-${LINUX_KERNEL_TYPE} ${target_branch_head}
else
echo "ERROR ${target_branch_head} is not a valid commit ID."
echo "The kernel source tree may be out of sync"
exit 1
fi
fi
fi
if [ "$meta_head" != "$target_meta_head" ]; then
if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
git show ${target_meta_head} > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "Forcing branch wrs_meta to ${target_meta_head}"
git branch -m wrs_meta wrs_meta-orig
git checkout -b wrs_meta ${target_meta_head}
else
echo "ERROR ${target_meta_head} is not a valid commit ID"
echo "The kernel source tree may be out of sync"
exit 1
fi
fi
fi
}
do_kernel_checkout() {
if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
echo "Fixing up git directory for ${KMACHINE}-${LINUX_KERNEL_TYPE}"
rm -rf ${S}
mkdir ${S}
mv ${WORKDIR}/.git ${S}
if [ -e ${S}/.git/packed-refs ]; then
cd ${S}
rm -f .git/refs/remotes/origin/HEAD
IFS='
';
for r in `git show-ref | grep remotes`; do
ref=`echo $r | cut -d' ' -f1`;
b=`echo $r | cut -d'/' -f4`;
echo $ref > .git/refs/heads/$b
done
cd ..
else
mv ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
rmdir ${S}/.git/refs/remotes/origin
fi
fi
cd ${S}
# checkout and clobber and unimportant files
git checkout -f ${KBRANCH}
if [ -z "${BOOTSTRAP}" ]; then
validate_branches
fi
# this second checkout is intentional, we want to leave ourselves
# on the branch to be built, but validate_branches could have changed
# our initial checkout. So we do it a second time to be sure
git checkout -f ${KBRANCH}
}
do_kernel_checkout[dirs] = "${S}"
addtask kernel_checkout before do_patch after do_unpack
do_kernel_configme() {
echo "Doing kernel configme"
cd ${S}
configme --reconfig
if [ $? -ne 0 ]; then
echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
exit 1
fi
echo "# CONFIG_WRNOTE is not set" >> ${B}/.config
echo "# Global settings from linux recipe" >> ${B}/.config
echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
}
do_kernel_configcheck() {
echo "[INFO] validating kernel configuration"
cd ${B}/..
kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${KMACHINE}-${LINUX_KERNEL_TYPE}
}
do_kernel_link_vmlinux() {
if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
mkdir ${B}/arch/${ARCH}/boot
fi
cd ${B}/arch/${ARCH}/boot
ln -sf ../../../vmlinux
}
do_compile_perf() {
oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix}
}
do_install_perf() {
oe_runmake -C ${S}/tools/perf CC="${KERNEL_CC}" LD="${KERNEL_LD}" prefix=${prefix} DESTDIR=${D} install
}
do_patch[depends] = "kern-tools-native:do_populate_sysroot"
addtask kernel_configme before do_configure after do_patch
addtask kernel_link_vmlinux after do_compile before do_install
addtask kernel_configcheck after do_configure before do_compile
inherit kernel
# perf tasks
addtask compile_perf after do_compile before do_install
addtask install_perf after do_install before do_package do_deploy
do_compile_perf[depends] = "virtual/libc:do_populate_sysroot"
do_compile_perf[depends] =+ "elfutils:do_populate_sysroot"
RDEPENDS_perf += "python perl elfutils"
|
