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# Create a xenguest image with kernel and filesystem produced by Yocto
# This will create a .xenguest file that the xenguest-manager can use.
inherit xenguest-image
# We are creating our guest in a local subdirectory
# force the value so that we are not impacted if the user is changing it
XENGUEST_IMAGE_DEPLOY_DIR = "${WORKDIR}/tmp-xenguest"
# Name of deployed file (keep standard image name and add .xenguest)
XENGUEST_IMAGE_DEPLOY ??= "${IMAGE_NAME}"
# Add kernel XENGUEST_IMAGE_KERNEL from DEPLOY_DIR_IMAGE to image
xenguest_image_add_kernel() {
srcfile="${1:-}"
if [ -z "${srcfile}" ]; then
srcfile="${DEPLOY_DIR_IMAGE}/${XENGUEST_IMAGE_KERNEL}"
fi
call_xenguest_mkimage partial --xen-kernel=$srcfile
}
# Add rootfs file to the image
xenguest_image_add_rootfs() {
call_xenguest_mkimage partial \
--disk-add-file=${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.${IMAGE_TYPEDEP_xenguest}:rootfs.${IMAGE_TYPEDEP_xenguest}
}
# Pack xenguest image
xenguest_image_pack() {
mkdir -p ${IMGDEPLOYDIR}
rm -f ${IMGDEPLOYDIR}/${XENGUEST_IMAGE_DEPLOY}.xenguest
call_xenguest_mkimage pack \
${IMGDEPLOYDIR}/${XENGUEST_IMAGE_DEPLOY}.xenguest
}
#
# Task finishing the bootimg
# We need this task to actually create the symlinks
#
python do_bootimg_xenguest() {
subtasks = d.getVarFlag('do_bootimg_xenguest', 'subtasks')
bb.build.exec_func('xenguest_image_clone', d)
if subtasks:
for tk in subtasks.split():
bb.build.exec_func(tk, d)
bb.build.exec_func('xenguest_image_pack', d)
bb.build.exec_func('create_symlinks', d)
}
# This is used to add sub-tasks to do_bootimg_xenguest
do_bootimg_xenguest[subtasks] = ""
# Those are required by create_symlinks to find our image
do_bootimg_xenguest[subimages] = "xenguest"
do_bootimg_xenguest[imgsuffix] = "."
do_bootimg_xenguest[depends] += "xenguest-base-image:do_deploy"
# Need to have rootfs so all recipes have deployed their content
do_bootimg_xenguest[depends] += "${PN}:do_rootfs"
# This set in python anonymous after, just set a default value here
IMAGE_TYPEDEP_xenguest ?= "tar"
# We must not be built at rootfs build time because we need the kernel
IMAGE_TYPES_MASKED += "xenguest"
IMAGE_TYPES += "xenguest"
python __anonymous() {
# Do not do anything if we are not in the want FSTYPES
if bb.utils.contains_any('IMAGE_FSTYPES', 'xenguest', '1', '0', d):
# Check the coherency of the configuration
rootfs_needed = False
rootfs_file = ''
kernel_needed = False
rootfs_file = xenguest_image_rootfs_file(d)
if rootfs_file:
rootfs_needed = True
if d.getVar('XENGUEST_IMAGE_KERNEL') and not d.getVar('INITRAMFS_IMAGE'):
# If INITRAMFS_IMAGE is set, even if INITRAMFS_IMAGE_BUNDLE is not
# set to 1 to bundle the initramfs with the kernel, kernel.bbclass
# is setting a dependency on ${PN}:do_image_complete. We cannot
# in this case depend on do_deploy as it would create a circular
# dependency:
# do_image_complete would depend on kernel:do_deploy which would
# depend on ${PN}:do_image_complete
# In the case INITRAMFS_IMAGE_BUNDLE = 1, the kernel-xenguest class
# will handle the creation of a xenguest image with the kernel.
# In the other case the kernel can be added manually to the image.
kernel_needed = True
bb.build.addtask('do_bootimg_xenguest', 'do_image_complete', None, d)
if rootfs_needed:
# tell do_bootimg_xenguest to call add_rootfs
d.appendVarFlag('do_bootimg_xenguest', 'subtasks', ' xenguest_image_add_rootfs')
# do_bootimg_xenguest will need the tar file
d.appendVarFlag('do_bootimg_xenguest', 'depends', ' %s:do_image_tar' % (d.getVar('PN')))
# set our TYPEDEP to the proper compression
d.setVar('IMAGE_TYPEDEP_xenguest', 'tar' + (rootfs_file.split('.tar', 1)[1] or ''))
if kernel_needed:
# Tell do_bootimg_xenguest to call xenguest_image_add_kernel
d.appendVarFlag('do_bootimg_xenguest', 'subtasks', ' xenguest_image_add_kernel')
# we will need kernel do_deploy
d.appendVarFlag('do_bootimg_xenguest', 'depends', ' virtual/kernel:do_deploy')
}
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