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