diff options
| -rw-r--r-- | meta/classes/image.bbclass | 12 | ||||
| -rw-r--r-- | meta/classes/kernel.bbclass | 96 | ||||
| -rw-r--r-- | meta/conf/local.conf.sample | 1 | ||||
| -rw-r--r-- | meta/conf/local.conf.sample.extended | 22 |
4 files changed, 119 insertions, 12 deletions
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass index 84f638c099..4a0946c8e3 100644 --- a/meta/classes/image.bbclass +++ b/meta/classes/image.bbclass @@ -130,6 +130,10 @@ python () { d.setVar('MULTILIB_VENDORS', ml_vendor_list) check_image_features(d) + initramfs_image = d.getVar('INITRAMFS_IMAGE', True) or "" + if initramfs_image != "": + d.appendVarFlag('do_build', 'depends', " %s:do_bundle_initramfs" % d.getVar('PN', True)) + d.appendVarFlag('do_bundle_initramfs', 'depends', " %s:do_rootfs" % initramfs_image) } # @@ -629,3 +633,11 @@ do_package_write_deb[noexec] = "1" do_package_write_rpm[noexec] = "1" addtask rootfs before do_build +# Allow the kernel to be repacked with the initramfs and boot image file as a single file +do_bundle_initramfs[depends] += "virtual/kernel:do_bundle_initramfs" +do_bundle_initramfs[nostamp] = "1" +do_bundle_initramfs[noexec] = "1" +do_bundle_initramfs () { + : +} +addtask bundle_initramfs after do_rootfs diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass index e039dfc15c..8cf66ce7dc 100644 --- a/meta/classes/kernel.bbclass +++ b/meta/classes/kernel.bbclass @@ -9,6 +9,7 @@ INHIBIT_DEFAULT_DEPS = "1" KERNEL_IMAGETYPE ?= "zImage" INITRAMFS_IMAGE ?= "" INITRAMFS_TASK ?= "" +INITRAMFS_IMAGE_BUNDLE ?= "" python __anonymous () { kerneltype = d.getVar('KERNEL_IMAGETYPE', True) or '' @@ -19,7 +20,15 @@ python __anonymous () { image = d.getVar('INITRAMFS_IMAGE', True) if image: - d.setVar('INITRAMFS_TASK', '${INITRAMFS_IMAGE}:do_rootfs') + d.appendVarFlag('do_bundle_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_rootfs') + + # NOTE: setting INITRAMFS_TASK is for backward compatibility + # The preferred method is to set INITRAMFS_IMAGE, because + # this INITRAMFS_TASK has circular dependency problems + # if the initramfs requires kernel modules + image_task = d.getVar('INITRAMFS_TASK', True) + if image_task: + d.appendVarFlag('do_configure', 'depends', ' ${INITRAMFS_TASK}') } inherit kernel-arch deploy @@ -72,9 +81,82 @@ KERNEL_SRC_PATH = "/usr/src/kernel" KERNEL_IMAGETYPE_FOR_MAKE = "${@(lambda s: s[:-3] if s[-3:] == ".gz" else s)(d.getVar('KERNEL_IMAGETYPE', True))}" +copy_initramfs() { + echo "Copying initramfs into ./usr ..." + # Find and use the first initramfs image archive type we find + rm -f ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio + for img in cpio.gz cpio.lzo cpio.lzma cpio.xz; do + if [ -e "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE}-${MACHINE}.$img" ]; then + cp ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE}-${MACHINE}.$img ${B}/usr/. + case $img in + *gz) + echo "gzip decompressing image" + gunzip -f ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img + break + ;; + *lzo) + echo "lzo decompressing image" + lzop -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img + break + ;; + *lzma) + echo "lzma decompressing image" + lzmash -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img + break + ;; + *xz) + echo "xz decompressing image" + xz -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img + break + ;; + esac + fi + done + echo "Finished copy of initramfs into ./usr" +} + +INITRAMFS_BASE_NAME = "${KERNEL_IMAGETYPE}-initramfs-${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} ${KERNEL_OUTPUT}.bak + fi + use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio + kernel_do_compile + mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.initramfs + mv -f ${KERNEL_OUTPUT}.bak ${KERNEL_OUTPUT} + # 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" + 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 ${DEPLOY_DIR_IMAGE}/${initramfs_base_name}.bin + cd ${DEPLOY_DIR_IMAGE} + ln -sf ${initramfs_base_name}.bin ${initramfs_symlink_name}.bin + fi + fi +} +do_bundle_initramfs[nostamp] = "1" +addtask bundle_initramfs after do_compile + kernel_do_compile() { unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE - oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} ${KERNEL_ALT_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} + # The $use_alternate_initrd is only set from + # do_bundle_initramfs() This variable is specifically for the + # case where we are making a second pass at the kernel + # compilation and we want to force the kernel build to use a + # different initramfs image. The way to do that in the kernel + # is to specify: + # make ...args... CONFIG_INITRAMFS_SOURCE=some_other_initramfs.cpio + 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}" > "${KERNEL_OUTPUT}" fi @@ -219,18 +301,8 @@ kernel_do_configure() { cp "${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 } diff --git a/meta/conf/local.conf.sample b/meta/conf/local.conf.sample index 2b078d081e..4030492c89 100644 --- a/meta/conf/local.conf.sample +++ b/meta/conf/local.conf.sample @@ -145,6 +145,7 @@ EXTRA_IMAGE_FEATURES = "debug-tweaks" # NOTE: mklibs also needs to be explicitly enabled for a given image, see local.conf.extended USER_CLASSES ?= "buildstats image-mklibs image-prelink" + # # Runtime testing of images # diff --git a/meta/conf/local.conf.sample.extended b/meta/conf/local.conf.sample.extended index 23a79dcc26..1db1a0b87c 100644 --- a/meta/conf/local.conf.sample.extended +++ b/meta/conf/local.conf.sample.extended @@ -237,3 +237,25 @@ FORTRAN_forcevariable = ",fortran" RUNTIMETARGET_append_pn-gcc-runtime = " libquadmath libgfortran" export BUILD_FC = "${CCACHE}${BUILD_PREFIX}gfortran ${BUILD_CC_ARCH}" export FC = "${CCACHE}${HOST_PREFIX}gfortran ${HOST_CC_ARCH}" + +# +# Kernel image features +# +# The INITRAMFS_IMAGE image variable will cause an additional recipe to +# be built as a dependency to the what ever rootfs recipe you might be +# using such as core-image-sato. The initramfs might be needed for +# the initial boot of of the target system such as to load kernel +# modules prior to mounting the root file system. +# +# INITRAMFS_IMAGE_BUNDLE variable controls if the image recipe +# specified by the INITRAMFS_IMAGE will be run through an extra pass +# through the kernel compilation in order to build a single binary +# which contains both the kernel image and the initramfs. The +# combined binary will be deposited into the tmp/deploy directory. +# NOTE: You can set INITRAMFS_IMAGE in an image recipe, but +# INITRAMFS_IMAGE_BUNDLE can only be set in a conf file. +# +#INITRAMFS_IMAGE = "core-image-minimal-initramfs" +#INITRAMFS_IMAGE_BUNDLE = "1" + + |