kernel: Add KERNEL_IMAGETYPES to build multi types kernel at one time
Add KERNEL_IMAGETYPES to support building packaging and installing
multi types of kernel images, such as zImage uImage, at one time.
KERNEL_IMAGETYPE and KERNEL_ALT_IMAGETYPE work as before.
(From OE-Core rev: 849b67b2e4820564b5e5c9bd4bb293c44351c5f3)
Change-Id: I23e413e3c950f6daed923c69b882993a214dd49c
Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Rick Altherr <raltherr@google.com>
diff --git a/import-layers/yocto-poky/meta/classes/kernel.bbclass b/import-layers/yocto-poky/meta/classes/kernel.bbclass
index 6e3e81e..e7e2cb3 100644
--- a/import-layers/yocto-poky/meta/classes/kernel.bbclass
+++ b/import-layers/yocto-poky/meta/classes/kernel.bbclass
@@ -16,12 +16,53 @@
INITRAMFS_TASK ?= ""
INITRAMFS_IMAGE_BUNDLE ?= ""
+# KERNEL_VERSION is extracted from source code. It is evaluated as
+# None for the first parsing, since the code has not been fetched.
+# After the code is fetched, it will be evaluated as real version
+# number and cause kernel to be rebuilt. To avoid this, make
+# KERNEL_VERSION_NAME and KERNEL_VERSION_PKG_NAME depend on
+# LINUX_VERSION which is a constant.
+KERNEL_VERSION_NAME = "${@d.getVar('KERNEL_VERSION', True) or ""}"
+KERNEL_VERSION_NAME[vardepvalue] = "${LINUX_VERSION}"
+KERNEL_VERSION_PKG_NAME = "${@legitimize_package_name(d.getVar('KERNEL_VERSION', True))}"
+KERNEL_VERSION_PKG_NAME[vardepvalue] = "${LINUX_VERSION}"
+
python __anonymous () {
import re
- kerneltype = d.getVar('KERNEL_IMAGETYPE', True)
+ # Merge KERNEL_IMAGETYPE and KERNEL_ALT_IMAGETYPE into KERNEL_IMAGETYPES
+ type = d.getVar('KERNEL_IMAGETYPE', True) or ""
+ alttype = d.getVar('KERNEL_ALT_IMAGETYPE', True) or ""
+ types = d.getVar('KERNEL_IMAGETYPES', True) or ""
+ if type not in types.split():
+ types = (type + ' ' + types).strip()
+ if alttype not in types.split():
+ types = (alttype + ' ' + types).strip()
+ d.setVar('KERNEL_IMAGETYPES', types)
- d.setVar("KERNEL_IMAGETYPE_FOR_MAKE", re.sub(r'\.gz$', '', kerneltype))
+ typeformake = re.sub(r'\.gz', '', types)
+ d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake)
+
+ for type in typeformake.split():
+ typelower = type.lower()
+
+ d.appendVar('PACKAGES', ' ' + 'kernel-image-' + typelower)
+
+ d.setVar('FILES_kernel-image-' + typelower, '/boot/' + type + '*')
+
+ d.appendVar('RDEPENDS_kernel-image', ' ' + 'kernel-image-' + typelower)
+
+ d.setVar('PKG_kernel-image-' + typelower, 'kernel-image-' + typelower + '-${KERNEL_VERSION_PKG_NAME}')
+
+ d.setVar('ALLOW_EMPTY_kernel-image-' + typelower, '1')
+
+ imagedest = d.getVar('KERNEL_IMAGEDEST', True)
+ priority = d.getVar('KERNEL_PRIORITY', True)
+ postinst = '#!/bin/sh\n' + 'update-alternatives --install /' + imagedest + '/' + type + ' ' + type + ' ' + '/' + imagedest + '/' + type + '-${KERNEL_VERSION_NAME} ' + priority + ' || true' + '\n'
+ d.setVar('pkg_postinst_kernel-image-' + typelower, postinst)
+
+ postrm = '#!/bin/sh\n' + 'update-alternatives --remove' + ' ' + type + ' ' + type + '-${KERNEL_VERSION_NAME} || true' + '\n'
+ d.setVar('pkg_postrm_kernel-image-' + typelower, postrm)
image = d.getVar('INITRAMFS_IMAGE', True)
if image:
@@ -92,8 +133,8 @@
KERNEL_RELEASE ?= "${KERNEL_VERSION}"
-# Where built kernel lies in the kernel tree
-KERNEL_OUTPUT ?= "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}"
+# The directory where built kernel lies in the kernel tree
+KERNEL_OUTPUT_DIR ?= "arch/${ARCH}/boot"
KERNEL_IMAGEDEST = "boot"
#
@@ -121,10 +162,6 @@
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"
-
copy_initramfs() {
echo "Copying initramfs into ./usr ..."
# In case the directory is not created yet from the first pass compile:
@@ -166,23 +203,48 @@
echo "Finished copy of initramfs into ./usr"
}
-INITRAMFS_BASE_NAME = "${KERNEL_IMAGETYPE}-initramfs-${PV}-${PR}-${MACHINE}-${DATETIME}"
+INITRAMFS_BASE_NAME = "initramfs-${PV}-${PR}-${MACHINE}-${DATETIME}"
INITRAMFS_BASE_NAME[vardepsexclude] = "DATETIME"
do_bundle_initramfs () {
if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then
echo "Creating a kernel image with a bundled initramfs..."
copy_initramfs
- if [ -e ${KERNEL_OUTPUT} ] ; then
- mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.bak
- fi
+ # Backing up kernel image relies on its type(regular file or symbolic link)
+ tmp_path=""
+ for type in ${KERNEL_IMAGETYPES} ; do
+ if [ -h ${KERNEL_OUTPUT_DIR}/$type ] ; then
+ linkpath=`readlink -n ${KERNEL_OUTPUT_DIR}/$type`
+ realpath=`readlink -fn ${KERNEL_OUTPUT_DIR}/$type`
+ mv -f $realpath $realpath.bak
+ tmp_path=$tmp_path" "$type"#"$linkpath"#"$realpath
+ elif [ -f ${KERNEL_OUTPUT_DIR}/$type ]; then
+ mv -f ${KERNEL_OUTPUT_DIR}/$type ${KERNEL_OUTPUT_DIR}/$type.bak
+ tmp_path=$tmp_path" "$type"##"
+ fi
+ done
use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio
kernel_do_compile
- mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.initramfs
- mv -f ${KERNEL_OUTPUT}.bak ${KERNEL_OUTPUT}
+ # Restoring kernel image
+ for tp in $tmp_path ; do
+ type=`echo $tp|cut -d "#" -f 1`
+ linkpath=`echo $tp|cut -d "#" -f 2`
+ realpath=`echo $tp|cut -d "#" -f 3`
+ if [ -n "$realpath" ]; then
+ mv -f $realpath $realpath.initramfs
+ mv -f $realpath.bak $realpath
+ cd ${B}/${KERNEL_OUTPUT_DIR}
+ ln -sf $linkpath.initramfs
+ else
+ mv -f ${KERNEL_OUTPUT_DIR}/$type ${KERNEL_OUTPUT_DIR}/$type.initramfs
+ mv -f ${KERNEL_OUTPUT_DIR}/$type.bak ${KERNEL_OUTPUT_DIR}/$type
+ fi
+ done
# Update install area
- echo "There is kernel image bundled with initramfs: ${B}/${KERNEL_OUTPUT}.initramfs"
- install -m 0644 ${B}/${KERNEL_OUTPUT}.initramfs ${D}/boot/${KERNEL_IMAGETYPE}-initramfs-${MACHINE}.bin
- echo "${B}/${KERNEL_OUTPUT}.initramfs"
+ for type in ${KERNEL_IMAGETYPES} ; do
+ echo "There is kernel image bundled with initramfs: ${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs"
+ install -m 0644 ${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs ${D}/boot/$type-initramfs-${MACHINE}.bin
+ echo "${B}/${KERNEL_OUTPUT_DIR}/$type.initramfs"
+ done
fi
}
@@ -207,10 +269,15 @@
copy_initramfs
use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio
fi
- oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} ${KERNEL_ALT_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd
- if test "${KERNEL_IMAGETYPE_FOR_MAKE}.gz" = "${KERNEL_IMAGETYPE}"; then
- gzip -9c < "${KERNEL_IMAGETYPE_FOR_MAKE}" > "${KERNEL_OUTPUT}"
- fi
+ for typeformake in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
+ oe_runmake ${typeformake} CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd
+ for type in ${KERNEL_IMAGETYPES} ; do
+ if test "${typeformake}.gz" = "${type}"; then
+ gzip -9c < "${typeformake}" > "${KERNEL_OUTPUT_DIR}/${type}"
+ break;
+ fi
+ done
+ done
}
do_compile_kernelmodules() {
@@ -251,7 +318,9 @@
#
install -d ${D}/${KERNEL_IMAGEDEST}
install -d ${D}/boot
- install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION}
+ for type in ${KERNEL_IMAGETYPES} ; do
+ install -m 0644 ${KERNEL_OUTPUT_DIR}/${type} ${D}/${KERNEL_IMAGEDEST}/${type}-${KERNEL_VERSION}
+ done
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}
@@ -330,6 +399,20 @@
KERNEL_CONFIG_COMMAND ?= "oe_runmake_call -C ${S} O=${B} oldnoconfig || yes '' | oe_runmake -C ${S} O=${B} oldconfig"
+python check_oldest_kernel() {
+ oldest_kernel = d.getVar('OLDEST_KERNEL', True)
+ kernel_version = d.getVar('KERNEL_VERSION', True)
+ tclibc = d.getVar('TCLIBC', True)
+ if tclibc == 'glibc':
+ kernel_version = kernel_version.split('-', 1)[0]
+ if oldest_kernel and kernel_version:
+ if bb.utils.vercmp_string(kernel_version, oldest_kernel) < 0:
+ bb.warn('%s: OLDEST_KERNEL is "%s" but the version of the kernel you are building is "%s" - therefore %s as built may not be compatible with this kernel. Either set OLDEST_KERNEL to an older version, or build a newer kernel.' % (d.getVar('PN', True), oldest_kernel, kernel_version, tclibc))
+}
+
+check_oldest_kernel[vardepsexclude] += "OLDEST_KERNEL KERNEL_VERSION"
+do_configure[prefuncs] += "check_oldest_kernel"
+
kernel_do_configure() {
# fixes extra + in /lib/modules/2.6.37+
# $ scripts/setlocalversion . => +
@@ -361,16 +444,16 @@
EXPORT_FUNCTIONS do_compile do_install do_configure
# kernel-base becomes kernel-${KERNEL_VERSION}
-# kernel-image becomes kernel-image-${KERNEL_VERISON}
+# kernel-image becomes kernel-image-${KERNEL_VERSION}
PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image kernel-dev kernel-modules"
FILES_${PN} = ""
FILES_kernel-base = "/lib/modules/${KERNEL_VERSION}/modules.order /lib/modules/${KERNEL_VERSION}/modules.builtin"
-FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*"
+FILES_kernel-image = ""
FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH} /lib/modules/${KERNEL_VERSION}/build"
FILES_kernel-vmlinux = "/boot/vmlinux*"
FILES_kernel-modules = ""
RDEPENDS_kernel = "kernel-base"
-# Allow machines to override this dependency if kernel image files are
+# 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}')}"
@@ -394,14 +477,6 @@
fi
}
-pkg_postinst_kernel-image () {
- update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION} ${KERNEL_PRIORITY} || true
-}
-
-pkg_postrm_kernel-image () {
- update-alternatives --remove ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} || true
-}
-
PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
python split_kernel_packages () {
@@ -422,13 +497,13 @@
do_strip() {
if [ -n "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" ]; then
- if [ "${KERNEL_IMAGETYPE}" != "vmlinux" ]; then
- bbwarn "image type will not be stripped (not supported): ${KERNEL_IMAGETYPE}"
+ if ! (echo "${KERNEL_IMAGETYPES}" | grep -wq "vmlinux"); then
+ bbwarn "image type(s) will not be stripped (not supported): ${KERNEL_IMAGETYPES}"
return
fi
cd ${B}
- headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT} | \
+ headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT_DIR}/vmlinux | \
grep "^ \{1,\}\[[0-9 ]\{1,\}\] [^ ]" | \
sed "s/^ \{1,\}\[[0-9 ]\{1,\}\] //" | \
gawk '{print $1}'`
@@ -438,7 +513,7 @@
bbwarn "Section not found: $str";
fi
- "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT}
+ "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT_DIR}/vmlinux
}; done
bbnote "KERNEL_IMAGE_STRIP_EXTRA_SECTIONS is set, stripping sections:" \
@@ -457,20 +532,22 @@
if [ -n "$invalid" ]; then
die "Invalid KERNEL_IMAGE_MAXSIZE: ${KERNEL_IMAGE_MAXSIZE}, should be an integerx (The unit is Kbytes)"
fi
- size=`du -ks ${B}/${KERNEL_OUTPUT} | awk '{ print $1}'`
- if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then
- die "This kernel (size=$size(K) > ${KERNEL_IMAGE_MAXSIZE}(K)) is too big for your device. Please reduce the size of the kernel by making more of it modular."
- fi
+ for type in ${KERNEL_IMAGETYPES} ; do
+ size=`du -ks ${B}/${KERNEL_OUTPUT_DIR}/$type | awk '{print $1}'`
+ if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then
+ warn "This kernel $type (size=$size(K) > ${KERNEL_IMAGE_MAXSIZE}(K)) is too big for your device. Please reduce the size of the kernel by making more of it modular."
+ fi
+ done
fi
}
do_sizecheck[dirs] = "${B}"
addtask sizecheck before do_install after do_strip
-KERNEL_IMAGE_BASE_NAME ?= "${KERNEL_IMAGETYPE}-${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}"
+KERNEL_IMAGE_BASE_NAME ?= "${PKGE}-${PKGV}-${PKGR}-${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}-${MACHINE}"
+KERNEL_IMAGE_SYMLINK_NAME ?= "${MACHINE}"
MODULE_IMAGE_BASE_NAME ?= "modules-${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}"
MODULE_IMAGE_BASE_NAME[vardepsexclude] = "DATETIME"
MODULE_TARBALL_BASE_NAME ?= "${MODULE_IMAGE_BASE_NAME}.tgz"
@@ -479,28 +556,37 @@
MODULE_TARBALL_DEPLOY ?= "1"
kernel_do_deploy() {
- install -m 0644 ${KERNEL_OUTPUT} ${DEPLOYDIR}/${KERNEL_IMAGE_BASE_NAME}.bin
+ for type in ${KERNEL_IMAGETYPES} ; do
+ base_name=${type}-${KERNEL_IMAGE_BASE_NAME}
+ install -m 0644 ${KERNEL_OUTPUT_DIR}/${type} ${DEPLOYDIR}/${base_name}.bin
+ done
if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e '^CONFIG_MODULES=y$' .config); then
mkdir -p ${D}/lib
tar -cvzf ${DEPLOYDIR}/${MODULE_TARBALL_BASE_NAME} -C ${D} lib
ln -sf ${MODULE_TARBALL_BASE_NAME} ${DEPLOYDIR}/${MODULE_TARBALL_SYMLINK_NAME}
fi
- ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${DEPLOYDIR}/${KERNEL_IMAGE_SYMLINK_NAME}.bin
- ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${DEPLOYDIR}/${KERNEL_IMAGETYPE}
+ for type in ${KERNEL_IMAGETYPES} ; do
+ base_name=${type}-${KERNEL_IMAGE_BASE_NAME}
+ symlink_name=${type}-${KERNEL_IMAGE_SYMLINK_NAME}
+ ln -sf ${base_name}.bin ${DEPLOYDIR}/${symlink_name}.bin
+ ln -sf ${base_name}.bin ${DEPLOYDIR}/${type}
+ done
cp ${COREBASE}/meta/files/deploydir_readme.txt ${DEPLOYDIR}/README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt
cd ${B}
# Update deploy directory
- if [ -e "${KERNEL_OUTPUT}.initramfs" ]; then
- echo "Copying deploy kernel-initramfs image and setting up links..."
- initramfs_base_name=${INITRAMFS_BASE_NAME}
- initramfs_symlink_name=${KERNEL_IMAGETYPE}-initramfs-${MACHINE}
- install -m 0644 ${KERNEL_OUTPUT}.initramfs ${DEPLOYDIR}/${initramfs_base_name}.bin
- cd ${DEPLOYDIR}
- ln -sf ${initramfs_base_name}.bin ${initramfs_symlink_name}.bin
- fi
+ for type in ${KERNEL_IMAGETYPES} ; do
+ if [ -e "${KERNEL_OUTPUT_DIR}/${type}.initramfs" ]; then
+ echo "Copying deploy ${type} kernel-initramfs image and setting up links..."
+ initramfs_base_name=${type}-${INITRAMFS_BASE_NAME}
+ initramfs_symlink_name=${type}-initramfs-${MACHINE}
+ install -m 0644 ${KERNEL_OUTPUT_DIR}/${type}.initramfs ${DEPLOYDIR}/${initramfs_base_name}.bin
+ cd ${DEPLOYDIR}
+ ln -sf ${initramfs_base_name}.bin ${initramfs_symlink_name}.bin
+ fi
+ done
}
do_deploy[cleandirs] = "${DEPLOYDIR}"
do_deploy[dirs] = "${DEPLOYDIR} ${B}"