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generic-poky/meta/classes/image_types.bbclass
André Draszik 9ac4c8b11c image/image_types.bbclass: fix fatal error during cpio debugfs creation 
If /init is just a symlink to /sbin/init, debugfs creation
fails with the following error:

ERROR: Error: The image creation script '<...>/debugfs.create_image.cpio' returned 1:
touch: cannot touch '<...>/cpio_append/init': Permission denied
WARNING: exit code 1 from a shell command.

ERROR: Function failed: do_rootfs

The reason is that IMAGE_CMD_cpio() is run twice on the same
WORKDIR. The first run creates a symlink in WORKDIR/cpio_append/init
to point to /sbin/init, while the 2nd run then tries to 'touch'
that link, which will fail, of course since /sbin/init is not
usually writable by non-root users.

Fix this by providing knowledge to the IMAGE_CMD_xxx() scripts
with regards to the fact that they are being executed in the
context of debugfs creation. The IMAGE_CMD_cpio() can now be
intelligent in the sense that it can avoid all additional symlink
handling during the debugfs run. The symlinks do not need to
be part of the debugfs, so we can skip that part altogether
in that case.

(From OE-Core rev: 659ae1d7df28115429f6f31450fad6d1f86e3031)

Signed-off-by: André Draszik <adraszik@tycoint.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-06-12 23:47:18 +01:00

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# IMAGE_NAME is the base name for everything produced when building images.
# The actual image that contains the rootfs has an additional suffix (.rootfs
# by default) followed by additional suffices which describe the format (.ext4,
# .ext4.xz, etc.).
IMAGE_NAME_SUFFIX ??= ".rootfs"
# The default aligment of the size of the rootfs is set to 1KiB. In case
# you're using the SD card emulation of a QEMU system simulator you may
# set this value to 2048 (2MiB alignment).
IMAGE_ROOTFS_ALIGNMENT ?= "1"
def imagetypes_getdepends(d):
def adddep(depstr, deps):
for d in (depstr or "").split():
# Add task dependency if not already present
if ":" not in d:
d += ":do_populate_sysroot"
deps.add(d)
fstypes = set((d.getVar('IMAGE_FSTYPES', True) or "").split())
fstypes |= set((d.getVar('IMAGE_FSTYPES_DEBUGFS', True) or "").split())
deps = set()
for typestring in fstypes:
types = typestring.split(".")
basetype, resttypes = types[0], types[1:]
adddep(d.getVar('IMAGE_DEPENDS_%s' % basetype, True) , deps)
for typedepends in (d.getVar("IMAGE_TYPEDEP_%s" % basetype, True) or "").split():
adddep(d.getVar('IMAGE_DEPENDS_%s' % typedepends, True) , deps)
for ctype in resttypes:
adddep(d.getVar("COMPRESS_DEPENDS_%s" % ctype, True), deps)
# Sort the set so that ordering is consistant
return " ".join(sorted(deps))
XZ_COMPRESSION_LEVEL ?= "-3"
XZ_INTEGRITY_CHECK ?= "crc32"
XZ_THREADS ?= "-T 0"
ZIP_COMPRESSION_LEVEL ?= "-9"
JFFS2_SUM_EXTRA_ARGS ?= ""
IMAGE_CMD_jffs2 = "mkfs.jffs2 --root=${IMAGE_ROOTFS} --faketime --output=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.jffs2 ${EXTRA_IMAGECMD}"
IMAGE_CMD_cramfs = "mkfs.cramfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.cramfs ${EXTRA_IMAGECMD}"
oe_mkext234fs () {
fstype=$1
extra_imagecmd=""
if [ $# -gt 1 ]; then
shift
extra_imagecmd=$@
fi
# If generating an empty image the size of the sparse block should be large
# enough to allocate an ext4 filesystem using 4096 bytes per inode, this is
# about 60K, so dd needs a minimum count of 60, with bs=1024 (bytes per IO)
eval local COUNT=\"0\"
eval local MIN_COUNT=\"60\"
if [ $ROOTFS_SIZE -lt $MIN_COUNT ]; then
eval COUNT=\"$MIN_COUNT\"
fi
# Create a sparse image block
dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype seek=$ROOTFS_SIZE count=$COUNT bs=1024
mkfs.$fstype -F $extra_imagecmd ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype -d ${IMAGE_ROOTFS}
}
IMAGE_CMD_ext2 = "oe_mkext234fs ext2 ${EXTRA_IMAGECMD}"
IMAGE_CMD_ext3 = "oe_mkext234fs ext3 ${EXTRA_IMAGECMD}"
IMAGE_CMD_ext4 = "oe_mkext234fs ext4 ${EXTRA_IMAGECMD}"
MIN_BTRFS_SIZE ?= "16384"
IMAGE_CMD_btrfs () {
if [ ${ROOTFS_SIZE} -gt ${MIN_BTRFS_SIZE} ]; then
dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.btrfs count=${ROOTFS_SIZE} bs=1024
mkfs.btrfs ${EXTRA_IMAGECMD} -r ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.btrfs
else
bbfatal "Rootfs is too small for BTRFS (Rootfs Actual Size: ${ROOTFS_SIZE}, BTRFS Minimum Size: ${MIN_BTRFS_SIZE})"
fi
}
IMAGE_CMD_squashfs = "mksquashfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.squashfs ${EXTRA_IMAGECMD} -noappend"
IMAGE_CMD_squashfs-xz = "mksquashfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.squashfs-xz ${EXTRA_IMAGECMD} -noappend -comp xz"
IMAGE_CMD_squashfs-lzo = "mksquashfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.squashfs-lzo ${EXTRA_IMAGECMD} -noappend -comp lzo"
# By default, tar from the host is used, which can be quite old. If
# you need special parameters (like --xattrs) which are only supported
# by GNU tar upstream >= 1.27, then override that default:
# IMAGE_CMD_TAR = "tar --xattrs --xattrs-include=*"
# IMAGE_DEPENDS_tar_append = " tar-replacement-native"
# EXTRANATIVEPATH += "tar-native"
#
# The GNU documentation does not specify whether --xattrs-include is necessary.
# In practice, it turned out to be not needed when creating archives and
# required when extracting, but it seems prudent to use it in both cases.
IMAGE_CMD_TAR ?= "tar"
IMAGE_CMD_tar = "${IMAGE_CMD_TAR} -cvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.tar -C ${IMAGE_ROOTFS} ."
do_image_cpio[cleandirs] += "${WORKDIR}/cpio_append"
IMAGE_CMD_cpio () {
(cd ${IMAGE_ROOTFS} && find . | cpio -o -H newc >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.cpio)
# We only need the /init symlink if we're building the real
# image. The -dbg image doesn't need it! By being clever
# about this we also avoid 'touch' below failing, as it
# might be trying to touch /sbin/init on the host since both
# the normal and the -dbg image share the same WORKDIR
if [ "${IMAGE_BUILDING_DEBUGFS}" != "true" ]; then
if [ ! -L ${IMAGE_ROOTFS}/init ] && [ ! -e ${IMAGE_ROOTFS}/init ]; then
if [ -L ${IMAGE_ROOTFS}/sbin/init ] || [ -e ${IMAGE_ROOTFS}/sbin/init ]; then
ln -sf /sbin/init ${WORKDIR}/cpio_append/init
else
touch ${WORKDIR}/cpio_append/init
fi
(cd ${WORKDIR}/cpio_append && echo ./init | cpio -oA -H newc -F ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.cpio)
fi
fi
}
ELF_KERNEL ?= "${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}"
ELF_APPEND ?= "ramdisk_size=32768 root=/dev/ram0 rw console="
IMAGE_CMD_elf () {
test -f ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.elf && rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.elf
mkelfImage --kernel=${ELF_KERNEL} --initrd=${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.cpio.gz --output=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.elf --append='${ELF_APPEND}' ${EXTRA_IMAGECMD}
}
IMAGE_TYPEDEP_elf = "cpio.gz"
UBI_VOLNAME ?= "${MACHINE}-rootfs"
multiubi_mkfs() {
local mkubifs_args="$1"
local ubinize_args="$2"
if [ -z "$3" ]; then
local vname=""
else
local vname="_$3"
fi
echo \[ubifs\] > ubinize${vname}-${IMAGE_NAME}.cfg
echo mode=ubi >> ubinize${vname}-${IMAGE_NAME}.cfg
echo image=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubifs >> ubinize${vname}-${IMAGE_NAME}.cfg
echo vol_id=0 >> ubinize${vname}-${IMAGE_NAME}.cfg
echo vol_type=dynamic >> ubinize${vname}-${IMAGE_NAME}.cfg
echo vol_name=${UBI_VOLNAME} >> ubinize${vname}-${IMAGE_NAME}.cfg
echo vol_flags=autoresize >> ubinize${vname}-${IMAGE_NAME}.cfg
mkfs.ubifs -r ${IMAGE_ROOTFS} -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubifs ${mkubifs_args}
ubinize -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubi ${ubinize_args} ubinize${vname}-${IMAGE_NAME}.cfg
# Cleanup cfg file
mv ubinize${vname}-${IMAGE_NAME}.cfg ${DEPLOY_DIR_IMAGE}/
# Create own symlinks for 'named' volumes
if [ -n "$vname" ]; then
cd ${DEPLOY_DIR_IMAGE}
if [ -e ${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubifs ]; then
ln -sf ${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubifs \
${IMAGE_LINK_NAME}${vname}.ubifs
fi
if [ -e ${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubi ]; then
ln -sf ${IMAGE_NAME}${vname}${IMAGE_NAME_SUFFIX}.ubi \
${IMAGE_LINK_NAME}${vname}.ubi
fi
cd -
fi
}
IMAGE_CMD_multiubi () {
# Split MKUBIFS_ARGS_<name> and UBINIZE_ARGS_<name>
for name in ${MULTIUBI_BUILD}; do
eval local mkubifs_args=\"\$MKUBIFS_ARGS_${name}\"
eval local ubinize_args=\"\$UBINIZE_ARGS_${name}\"
multiubi_mkfs "${mkubifs_args}" "${ubinize_args}" "${name}"
done
}
IMAGE_CMD_ubi () {
multiubi_mkfs "${MKUBIFS_ARGS}" "${UBINIZE_ARGS}"
}
IMAGE_CMD_ubifs = "mkfs.ubifs -r ${IMAGE_ROOTFS} -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.ubifs ${MKUBIFS_ARGS}"
WKS_FILE ?= "${IMAGE_BASENAME}.${MACHINE}.wks"
WKS_FILES ?= "${WKS_FILE} ${IMAGE_BASENAME}.wks"
WKS_SEARCH_PATH ?= "${THISDIR}:${@':'.join('%s/scripts/lib/wic/canned-wks' % l for l in '${BBPATH}:${COREBASE}'.split(':'))}"
WKS_FULL_PATH = "${@wks_search('${WKS_FILES}'.split(), '${WKS_SEARCH_PATH}') or ''}"
def wks_search(files, search_path):
for f in files:
if os.path.isabs(f):
if os.path.exists(f):
return f
else:
searched = bb.utils.which(search_path, f)
if searched:
return searched
WIC_CREATE_EXTRA_ARGS ?= ""
IMAGE_CMD_wic () {
out="${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}"
wks="${WKS_FULL_PATH}"
if [ -z "$wks" ]; then
bbfatal "No kickstart files from WKS_FILES were found: ${WKS_FILES}. Please set WKS_FILE or WKS_FILES appropriately."
fi
BUILDDIR="${TOPDIR}" wic create "$wks" --vars "${STAGING_DIR_TARGET}/imgdata/" -e "${IMAGE_BASENAME}" -o "$out/" ${WIC_CREATE_EXTRA_ARGS}
mv "$out/build/$(basename "${wks%.wks}")"*.direct "$out${IMAGE_NAME_SUFFIX}.wic"
rm -rf "$out/"
}
IMAGE_CMD_wic[vardepsexclude] = "WKS_FULL_PATH WKS_FILES"
# Rebuild when the wks file or vars in WICVARS change
USING_WIC = "${@bb.utils.contains_any('IMAGE_FSTYPES', 'wic ' + ' '.join('wic.%s' % c for c in '${COMPRESSIONTYPES}'.split()), '1', '', d)}"
do_image_wic[file-checksums] += "${@'${WKS_FULL_PATH}:%s' % os.path.exists('${WKS_FULL_PATH}') if '${USING_WIC}' else ''}"
EXTRA_IMAGECMD = ""
inherit siteinfo
JFFS2_ENDIANNESS ?= "${@base_conditional('SITEINFO_ENDIANNESS', 'le', '-l', '-b', d)}"
JFFS2_ERASEBLOCK ?= "0x40000"
EXTRA_IMAGECMD_jffs2 ?= "--pad ${JFFS2_ENDIANNESS} --eraseblock=${JFFS2_ERASEBLOCK} --no-cleanmarkers"
# Change these if you want default mkfs behavior (i.e. create minimal inode number)
EXTRA_IMAGECMD_ext2 ?= "-i 4096"
EXTRA_IMAGECMD_ext3 ?= "-i 4096"
EXTRA_IMAGECMD_ext4 ?= "-i 4096"
EXTRA_IMAGECMD_btrfs ?= "-n 4096"
EXTRA_IMAGECMD_elf ?= ""
IMAGE_DEPENDS = ""
IMAGE_DEPENDS_jffs2 = "mtd-utils-native"
IMAGE_DEPENDS_cramfs = "util-linux-native"
IMAGE_DEPENDS_ext2 = "e2fsprogs-native"
IMAGE_DEPENDS_ext3 = "e2fsprogs-native"
IMAGE_DEPENDS_ext4 = "e2fsprogs-native"
IMAGE_DEPENDS_btrfs = "btrfs-tools-native"
IMAGE_DEPENDS_squashfs = "squashfs-tools-native"
IMAGE_DEPENDS_squashfs-xz = "squashfs-tools-native"
IMAGE_DEPENDS_squashfs-lzo = "squashfs-tools-native"
IMAGE_DEPENDS_elf = "virtual/kernel mkelfimage-native"
IMAGE_DEPENDS_ubi = "mtd-utils-native"
IMAGE_DEPENDS_ubifs = "mtd-utils-native"
IMAGE_DEPENDS_multiubi = "mtd-utils-native"
IMAGE_DEPENDS_wic = "parted-native"
# This variable is available to request which values are suitable for IMAGE_FSTYPES
IMAGE_TYPES = " \
jffs2 jffs2.sum \
cramfs \
ext2 ext2.gz ext2.bz2 ext2.lzma \
ext3 ext3.gz \
ext4 ext4.gz \
btrfs \
iso \
hddimg \
squashfs squashfs-xz squashfs-lzo \
ubi ubifs multiubi \
tar tar.gz tar.bz2 tar.xz tar.lz4 \
cpio cpio.gz cpio.xz cpio.lzma cpio.lz4 \
vmdk \
vdi \
qcow2 \
hdddirect \
elf \
wic wic.gz wic.bz2 wic.lzma \
"
COMPRESSIONTYPES = "gz bz2 lzma xz lz4 zip sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap"
COMPRESS_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
COMPRESS_CMD_gz = "gzip -f -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.gz"
COMPRESS_CMD_bz2 = "pbzip2 -f -k ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
COMPRESS_CMD_xz = "xz -f -k -c ${XZ_COMPRESSION_LEVEL} ${XZ_THREADS} --check=${XZ_INTEGRITY_CHECK} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.xz"
COMPRESS_CMD_lz4 = "lz4c -9 -c ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.lz4"
COMPRESS_CMD_zip = "zip ${ZIP_COMPRESSION_LEVEL} ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.zip ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"
COMPRESS_CMD_sum = "sumtool -i ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} -o ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sum ${JFFS2_SUM_EXTRA_ARGS}"
COMPRESS_CMD_md5sum = "md5sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.md5sum"
COMPRESS_CMD_sha1sum = "sha1sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha1sum"
COMPRESS_CMD_sha224sum = "sha224sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha224sum"
COMPRESS_CMD_sha256sum = "sha256sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha256sum"
COMPRESS_CMD_sha384sum = "sha384sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha384sum"
COMPRESS_CMD_sha512sum = "sha512sum ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} > ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.sha512sum"
COMPRESS_CMD_bmap = "bmaptool create ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} -o ${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.bmap"
COMPRESS_DEPENDS_lzma = "xz-native"
COMPRESS_DEPENDS_gz = ""
COMPRESS_DEPENDS_bz2 = "pbzip2-native"
COMPRESS_DEPENDS_xz = "xz-native"
COMPRESS_DEPENDS_lz4 = "lz4-native"
COMPRESS_DEPENDS_zip = "zip-native"
COMPRESS_DEPENDS_sum = "mtd-utils-native"
COMPRESS_DEPENDS_bmap = "bmap-tools-native"
RUNNABLE_IMAGE_TYPES ?= "ext2 ext3 ext4"
RUNNABLE_MACHINE_PATTERNS ?= "qemu"
DEPLOYABLE_IMAGE_TYPES ?= "hddimg iso"
# Use IMAGE_EXTENSION_xxx to map image type 'xxx' with real image file extension name(s) for Hob
IMAGE_EXTENSION_live = "hddimg iso"
# The IMAGE_TYPES_MASKED variable will be used to mask out from the IMAGE_FSTYPES,
# images that will not be built at do_rootfs time: vmdk, vdi, qcow2, hdddirect, hddimg, iso, etc.
IMAGE_TYPES_MASKED ?= ""
# The WICVARS variable is used to define list of bitbake variables used in wic code
# variables from this list is written to <image>.env file
WICVARS ?= "BBLAYERS DEPLOY_DIR_IMAGE HDDDIR IMAGE_BASENAME IMAGE_BOOT_FILES IMAGE_LINK_NAME IMAGE_ROOTFS INITRAMFS_FSTYPES INITRD ISODIR MACHINE_ARCH ROOTFS_SIZE STAGING_DATADIR STAGING_DIR_NATIVE STAGING_LIBDIR TARGET_SYS"
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