inherit linux-kernel-base module_strip PROVIDES += "virtual/kernel" DEPENDS += "virtual/${TARGET_PREFIX}gcc kmod-native virtual/${TARGET_PREFIX}gcc${KERNEL_CCSUFFIX} update-modules" # we include gcc above, we dont need virtual/libc INHIBIT_DEFAULT_DEPS = "1" KERNEL_IMAGETYPE ?= "zImage" INITRAMFS_IMAGE ?= "" INITRAMFS_TASK ?= "" python __anonymous () { kerneltype = d.getVar('KERNEL_IMAGETYPE', True) or '' if kerneltype == 'uImage': depends = d.getVar("DEPENDS", True) depends = "%s u-boot-mkimage-native" % depends d.setVar("DEPENDS", depends) image = d.getVar('INITRAMFS_IMAGE', True) if image: d.setVar('INITRAMFS_TASK', '${INITRAMFS_IMAGE}:do_rootfs') } inherit kernel-arch deploy PACKAGES_DYNAMIC += "kernel-module-*" PACKAGES_DYNAMIC += "kernel-image-*" PACKAGES_DYNAMIC += "kernel-firmware-*" export OS = "${TARGET_OS}" export CROSS_COMPILE = "${TARGET_PREFIX}" KERNEL_PRIORITY ?= "${@int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.')[0]) * 10000 + \ int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.')[1]) * 100 + \ int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.')[-1])}" KERNEL_RELEASE ?= "${KERNEL_VERSION}" KERNEL_CCSUFFIX ?= "" KERNEL_LDSUFFIX ?= "" # Set TARGET_??_KERNEL_ARCH in the machine .conf to set architecture # specific options necessary for building the kernel and modules. #FIXME: should be this: TARGET_CC_KERNEL_ARCH ?= "${TARGET_CC_ARCH}" TARGET_CC_KERNEL_ARCH ?= "" HOST_CC_KERNEL_ARCH ?= "${TARGET_CC_KERNEL_ARCH}" TARGET_LD_KERNEL_ARCH ?= "" HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}" KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc${KERNEL_CCSUFFIX} ${HOST_CC_KERNEL_ARCH}${TOOLCHAIN_OPTIONS}" KERNEL_LD = "${HOST_PREFIX}ld${KERNEL_LDSUFFIX} ${HOST_LD_KERNEL_ARCH}${TOOLCHAIN_OPTIONS}" # Where built kernel lies in the kernel tree KERNEL_OUTPUT ?= "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}" KERNEL_IMAGEDEST = "boot" # # configuration # export CMDLINE_CONSOLE = "console=${@d.getVar("KERNEL_CONSOLE",1) or "ttyS0"}" KERNEL_VERSION = "${@get_kernelversion('${B}')}" KERNEL_LOCALVERSION ?= "" # kernels are generally machine specific PACKAGE_ARCH = "${MACHINE_ARCH}" # U-Boot support UBOOT_ENTRYPOINT ?= "20008000" UBOOT_LOADADDRESS ?= "${UBOOT_ENTRYPOINT}" # For the kernel, we don't want the '-e MAKEFLAGS=' in EXTRA_OEMAKE. # We don't want to override kernel Makefile variables from the environment EXTRA_OEMAKE = "" KERNEL_ALT_IMAGETYPE ??= "" # Define where the kernel headers are installed on the target as well as where # they are staged. KERNEL_SRC_PATH = "/usr/src/kernel" KERNEL_IMAGETYPE_FOR_MAKE = "${@(lambda s: s[:-3] if s[-3:] == ".gz" else s)(d.getVar('KERNEL_IMAGETYPE', True))}" kernel_do_compile() { unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE oe_runmake include/linux/version.h CC="${KERNEL_CC}" LD="${KERNEL_LD}" oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} ${KERNEL_ALT_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" if test "${KERNEL_IMAGETYPE_FOR_MAKE}.gz" = "${KERNEL_IMAGETYPE}"; then gzip -9c < "${KERNEL_IMAGETYPE_FOR_MAKE}" > "${KERNEL_OUTPUT}" fi } do_compile_kernelmodules() { unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then oe_runmake ${PARALLEL_MAKE} modules CC="${KERNEL_CC}" LD="${KERNEL_LD}" else bbnote "no modules to compile" fi } addtask compile_kernelmodules after do_compile before do_install kernel_do_install() { # # First install the modules # unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then oe_runmake DEPMOD=echo INSTALL_MOD_PATH="${D}" modules_install rm -f "${D}/lib/modules/${KERNEL_VERSION}/modules.order" rm -f "${D}/lib/modules/${KERNEL_VERSION}/modules.builtin" rm "${D}/lib/modules/${KERNEL_VERSION}/build" rm "${D}/lib/modules/${KERNEL_VERSION}/source" else bbnote "no modules to install" fi # # Install various kernel output (zImage, map file, config, module support files) # install -d ${D}/${KERNEL_IMAGEDEST} install -d ${D}/boot install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION} install -m 0644 System.map ${D}/boot/System.map-${KERNEL_VERSION} install -m 0644 .config ${D}/boot/config-${KERNEL_VERSION} install -m 0644 vmlinux ${D}/boot/vmlinux-${KERNEL_VERSION} [ -e Module.symvers ] && install -m 0644 Module.symvers ${D}/boot/Module.symvers-${KERNEL_VERSION} install -d ${D}${sysconfdir}/modules-load.d install -d ${D}${sysconfdir}/modprobe.d # # Support for external module building - create a minimal copy of the # kernel source tree. # kerneldir=${D}${KERNEL_SRC_PATH} install -d $kerneldir # # Store the kernel version in sysroots for module-base.bbclass # echo "${KERNEL_VERSION}" > $kerneldir/kernel-abiversion # # Store kernel image name to allow use during image generation # echo "${KERNEL_IMAGE_BASE_NAME}" >$kerneldir/kernel-image-name # # Copy the entire source tree. In case an external build directory is # used, copy the build directory over first, then copy over the source # dir. This ensures the original Makefiles are used and not the # redirecting Makefiles in the build directory. # # work and sysroots can be on different partitions, so we can't rely on # hardlinking, unfortunately. # cp -fR * $kerneldir cp .config $kerneldir if [ "${S}" != "${B}" ]; then cp -fR ${S}/* $kerneldir fi install -m 0644 ${KERNEL_OUTPUT} $kerneldir/${KERNEL_IMAGETYPE} install -m 0644 System.map $kerneldir/System.map-${KERNEL_VERSION} # # Clean and remove files not needed for building modules. # Some distributions go through a lot more trouble to strip out # unecessary headers, for now, we just prune the obvious bits. # # We don't want to leave host-arch binaries in /sysroots, so # we clean the scripts dir while leaving the generated config # and include files. # oe_runmake -C $kerneldir CC="${KERNEL_CC}" LD="${KERNEL_LD}" clean make -C $kerneldir _mrproper_scripts find $kerneldir -path $kerneldir/lib -prune -o -path $kerneldir/tools -prune -o -path $kerneldir/scripts -prune -o -name "*.[csS]" -exec rm '{}' \; find $kerneldir/Documentation -name "*.txt" -exec rm '{}' \; # As of Linux kernel version 3.0.1, the clean target removes # arch/powerpc/lib/crtsavres.o which is present in # KBUILD_LDFLAGS_MODULE, making it required to build external modules. if [ ${ARCH} = "powerpc" ]; then cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o fi # Necessary for building modules like compat-wireless. if [ -f include/generated/bounds.h ]; then cp include/generated/bounds.h $kerneldir/include/generated/bounds.h fi # Remove the following binaries which cause strip or arch QA errors # during do_package for cross-compiled platforms bin_files="arch/powerpc/boot/addnote arch/powerpc/boot/hack-coff \ arch/powerpc/boot/mktree scripts/kconfig/zconf.tab.o \ scripts/kconfig/conf.o scripts/kconfig/kxgettext.o" for entry in $bin_files; do rm -f $kerneldir/$entry done } sysroot_stage_all_append() { sysroot_stage_dir ${D}${KERNEL_SRC_PATH} ${SYSROOT_DESTDIR}${KERNEL_SRC_PATH} } kernel_do_configure() { # fixes extra + in /lib/modules/2.6.37+ # $ scripts/setlocalversion . => + # $ make kernelversion => 2.6.37 # $ make kernelrelease => 2.6.37+ touch ${B}/.scmversion ${S}/.scmversion # Copy defconfig to .config if .config does not exist. This allows # recipes to manage the .config themselves in do_configure_prepend(). if [ -f "${WORKDIR}/defconfig" ] && [ ! -f "${B}/.config" ]; then cp "${WORKDIR}/defconfig" "${B}/.config" fi yes '' | oe_runmake oldconfig if [ ! -z "${INITRAMFS_IMAGE}" ]; then for img in cpio.gz cpio.lzo cpio.lzma cpio.xz; do if [ -e "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE}-${MACHINE}.$img" ]; then cp "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE}-${MACHINE}.$img" initramfs.$img fi done fi } do_configure[depends] += "${INITRAMFS_TASK}" do_savedefconfig() { oe_runmake savedefconfig } do_savedefconfig[nostamp] = "1" addtask savedefconfig after do_configure pkg_postinst_kernel-base () { cd /${KERNEL_IMAGEDEST}; update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} ${KERNEL_PRIORITY} || true } pkg_postrm_kernel-base () { cd /${KERNEL_IMAGEDEST}; update-alternatives --remove ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} || true } inherit cml1 EXPORT_FUNCTIONS do_compile do_install do_configure # kernel-base becomes kernel-${KERNEL_VERSION} # kernel-image becomes kernel-image-${KERNEL_VERISON} PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image kernel-dev" FILES = "" FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*" FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH}" FILES_kernel-vmlinux = "/boot/vmlinux*" RDEPENDS_kernel = "kernel-base" # Allow machines to override this dependency if kernel image files are # not wanted in images as standard RDEPENDS_kernel-base ?= "kernel-image" PKG_kernel-image = "kernel-image-${@legitimize_package_name('${KERNEL_VERSION}')}" PKG_kernel-base = "kernel-${@legitimize_package_name('${KERNEL_VERSION}')}" RPROVIDES_kernel-base += "kernel-${KERNEL_VERSION}" ALLOW_EMPTY_kernel = "1" ALLOW_EMPTY_kernel-base = "1" ALLOW_EMPTY_kernel-image = "1" pkg_postinst_kernel-image () { if [ ! -e "$D/lib/modules/${KERNEL_VERSION}" ]; then mkdir -p $D/lib/modules/${KERNEL_VERSION} fi if [ -n "$D" ]; then depmod -a -b $D -F ${STAGING_KERNEL_DIR}/System.map-${KERNEL_VERSION} ${KERNEL_VERSION} else depmod -a ${KERNEL_VERSION} fi } pkg_postinst_modules () { if [ -z "$D" ]; then depmod -a ${KERNEL_VERSION} update-modules || true fi } pkg_postrm_modules () { update-modules || true } autoload_postinst_fragment() { if [ x"$D" = "x" ]; then modprobe %s || true fi } python populate_packages_prepend () { def extract_modinfo(file): import tempfile, re, subprocess tempfile.tempdir = d.getVar("WORKDIR", True) tf = tempfile.mkstemp() tmpfile = tf[1] cmd = "PATH=\"%s\" %sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("PATH", True), d.getVar("HOST_PREFIX", True) or "", file, tmpfile) subprocess.call(cmd, shell=True) f = open(tmpfile) l = f.read().split("\000") f.close() os.close(tf[0]) os.unlink(tmpfile) exp = re.compile("([^=]+)=(.*)") vals = {} for i in l: m = exp.match(i) if not m: continue vals[m.group(1)] = m.group(2) return vals def parse_depmod(): import re dvar = d.getVar('PKGD', True) if not dvar: bb.error("PKGD not defined") return kernelver = d.getVar('KERNEL_VERSION', True) kernelver_stripped = kernelver m = re.match('^(.*-hh.*)[\.\+].*$', kernelver) if m: kernelver_stripped = m.group(1) path = d.getVar("PATH", True) cmd = "PATH=\"%s\" depmod -n -a -b %s -F %s/boot/System.map-%s %s" % (path, dvar, dvar, kernelver, kernelver_stripped) f = os.popen(cmd, 'r') deps = {} pattern0 = "^(.*\.k?o):..*$" pattern1 = "^(.*\.k?o):\s*(.*\.k?o)\s*$" pattern2 = "^(.*\.k?o):\s*(.*\.k?o)\s*\\\$" pattern3 = "^\t(.*\.k?o)\s*\\\$" pattern4 = "^\t(.*\.k?o)\s*$" line = f.readline() while line: if not re.match(pattern0, line): line = f.readline() continue m1 = re.match(pattern1, line) if m1: deps[m1.group(1)] = m1.group(2).split() else: m2 = re.match(pattern2, line) if m2: deps[m2.group(1)] = m2.group(2).split() line = f.readline() m3 = re.match(pattern3, line) while m3: deps[m2.group(1)].extend(m3.group(1).split()) line = f.readline() m3 = re.match(pattern3, line) m4 = re.match(pattern4, line) deps[m2.group(1)].extend(m4.group(1).split()) line = f.readline() f.close() return deps def get_dependencies(file, pattern, format): # file no longer includes PKGD file = file.replace(d.getVar('PKGD', True) or '', '', 1) # instead is prefixed with /lib/modules/${KERNEL_VERSION} file = file.replace("/lib/modules/%s/" % d.getVar('KERNEL_VERSION', True) or '', '', 1) if module_deps.has_key(file): import re dependencies = [] for i in module_deps[file]: m = re.match(pattern, os.path.basename(i)) if not m: continue on = legitimize_package_name(m.group(1)) dependency_pkg = format % on dependencies.append(dependency_pkg) return dependencies return [] def frob_metadata(file, pkg, pattern, format, basename): import re vals = extract_modinfo(file) dvar = d.getVar('PKGD', True) # If autoloading is requested, output /etc/modules-load.d/.conf and append # appropriate modprobe commands to the postinst autoload = d.getVar('module_autoload_%s' % basename, True) if autoload: name = '%s/etc/modules-load.d/%s.conf' % (dvar, basename) f = open(name, 'w') for m in autoload.split(): f.write('%s\n' % m) f.close() postinst = d.getVar('pkg_postinst_%s' % pkg, True) if not postinst: bb.fatal("pkg_postinst_%s not defined" % pkg) postinst += d.getVar('autoload_postinst_fragment', True) % autoload d.setVar('pkg_postinst_%s' % pkg, postinst) # Write out any modconf fragment modconf = d.getVar('module_conf_%s' % basename, True) if modconf: name = '%s/etc/modprobe.d/%s.conf' % (dvar, basename) f = open(name, 'w') f.write("%s\n" % modconf) f.close() files = d.getVar('FILES_%s' % pkg, True) files = "%s /etc/modules-load.d/%s.conf /etc/modprobe.d/%s.conf" % (files, basename, basename) d.setVar('FILES_%s' % pkg, files) if vals.has_key("description"): old_desc = d.getVar('DESCRIPTION_' + pkg, True) or "" d.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"]) rdepends_str = d.getVar('RDEPENDS_' + pkg, True) if rdepends_str: rdepends = rdepends_str.split() else: rdepends = [] rdepends.extend(get_dependencies(file, pattern, format)) d.setVar('RDEPENDS_' + pkg, ' '.join(rdepends)) module_deps = parse_depmod() module_regex = '^(.*)\.k?o$' module_pattern = 'kernel-module-%s' postinst = d.getVar('pkg_postinst_modules', True) postrm = d.getVar('pkg_postrm_modules', True) do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.bin$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.fw$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.cis$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='update-modules kernel-%s' % d.getVar("KERNEL_VERSION", True)) # If modules-load.d and modprobe.d are empty at this point, remove them to # avoid warnings. removedirs only raises an OSError if an empty # directory cannot be removed. dvar = d.getVar('PKGD', True) for dir in ["%s/etc/modprobe.d" % (dvar), "%s/etc/modules-load.d" % (dvar), "%s/etc" % (dvar)]: if len(os.listdir(dir)) == 0: os.rmdir(dir) import re metapkg = "kernel-modules" d.setVar('ALLOW_EMPTY_' + metapkg, "1") d.setVar('FILES_' + metapkg, "") blacklist = [ 'kernel-dev', 'kernel-image', 'kernel-base', 'kernel-vmlinux' ] for l in module_deps.values(): for i in l: pkg = module_pattern % legitimize_package_name(re.match(module_regex, os.path.basename(i)).group(1)) blacklist.append(pkg) metapkg_rdepends = [] packages = d.getVar('PACKAGES', True).split() for pkg in packages[1:]: if not pkg in blacklist and not pkg in metapkg_rdepends: metapkg_rdepends.append(pkg) d.setVar('RDEPENDS_' + metapkg, ' '.join(metapkg_rdepends)) d.setVar('DESCRIPTION_' + metapkg, 'Kernel modules meta package') packages.append(metapkg) d.setVar('PACKAGES', ' '.join(packages)) } # Support checking the kernel size since some kernels need to reside in partitions # with a fixed length or there is a limit in transferring the kernel to memory do_sizecheck() { if [ ! -z "${KERNEL_IMAGE_MAXSIZE}" ]; then size=`ls -l ${KERNEL_OUTPUT} | awk '{ print $5}'` if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then rm ${KERNEL_OUTPUT} die "This kernel (size=$size > ${KERNEL_IMAGE_MAXSIZE}) is too big for your device. Please reduce the size of the kernel by making more of it modular." fi fi } addtask sizecheck before do_install after do_compile KERNEL_IMAGE_BASE_NAME ?= "${KERNEL_IMAGETYPE}-${PV}-${PR}-${MACHINE}-${DATETIME}" # Don't include the DATETIME variable in the sstate package signatures KERNEL_IMAGE_BASE_NAME[vardepsexclude] = "DATETIME" KERNEL_IMAGE_SYMLINK_NAME ?= "${KERNEL_IMAGETYPE}-${MACHINE}" do_uboot_mkimage() { if test "x${KERNEL_IMAGETYPE}" = "xuImage" ; then if test "x${KEEPUIMAGE}" != "xyes" ; then ENTRYPOINT=${UBOOT_ENTRYPOINT} if test -n "${UBOOT_ENTRYSYMBOL}"; then ENTRYPOINT=`${HOST_PREFIX}nm ${S}/vmlinux | \ awk '$3=="${UBOOT_ENTRYSYMBOL}" {print $1}'` fi if test -e arch/${ARCH}/boot/compressed/vmlinux ; then ${OBJCOPY} -O binary -R .note -R .comment -S arch/${ARCH}/boot/compressed/vmlinux linux.bin uboot-mkimage -A ${UBOOT_ARCH} -O linux -T kernel -C none -a ${UBOOT_LOADADDRESS} -e $ENTRYPOINT -n "${DISTRO_NAME}/${PV}/${MACHINE}" -d linux.bin arch/${ARCH}/boot/uImage rm -f linux.bin else ${OBJCOPY} -O binary -R .note -R .comment -S vmlinux linux.bin rm -f linux.bin.gz gzip -9 linux.bin uboot-mkimage -A ${UBOOT_ARCH} -O linux -T kernel -C gzip -a ${UBOOT_LOADADDRESS} -e $ENTRYPOINT -n "${DISTRO_NAME}/${PV}/${MACHINE}" -d linux.bin.gz arch/${ARCH}/boot/uImage rm -f linux.bin.gz fi fi fi } addtask uboot_mkimage before do_install after do_compile kernel_do_deploy() { install -m 0644 ${KERNEL_OUTPUT} ${DEPLOYDIR}/${KERNEL_IMAGE_BASE_NAME}.bin if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then tar -cvzf ${DEPLOYDIR}/modules-${KERNEL_VERSION}-${PR}-${MACHINE}.tgz -C ${D} lib fi cd ${DEPLOYDIR} rm -f ${KERNEL_IMAGE_SYMLINK_NAME}.bin ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${KERNEL_IMAGE_SYMLINK_NAME}.bin ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${KERNEL_IMAGETYPE} cp ${COREBASE}/meta/files/deploydir_readme.txt ${DEPLOYDIR}/README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt } do_deploy[dirs] = "${DEPLOYDIR} ${B}" addtask deploy before do_build after do_install EXPORT_FUNCTIONS do_deploy