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image_types: Refactor compression code into a generic compression solution
The current approach of adding each different compressed image type doesn't scale. This patch changes the code so compressed images for each form are automatically available using the form <type>.<compression type> in IMAGE_FSTYPES. This doesn't change any existing externally visible behaviour and the image generation process becomes more efficient as a result too. (From OE-Core rev: b7e4ed41ee480f00b7265341e9e2d2c2b9135143) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
@@ -75,9 +75,7 @@ inherit image-${IMAGE_TYPE}
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python () {
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deps = d.getVarFlag('do_rootfs', 'depends') or ""
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for type in (d.getVar('IMAGE_FSTYPES', True) or "").split():
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for dep in ((d.getVar('IMAGE_DEPENDS_%s' % type) or "").split() or []):
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deps += " %s:do_populate_sysroot" % dep
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deps += imagetypes_getdepends(d)
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for dep in (d.getVar('EXTRA_IMAGEDEPENDS', True) or "").split():
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deps += " %s:do_populate_sysroot" % dep
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d.setVarFlag('do_rootfs', 'depends', deps)
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@@ -2,7 +2,21 @@ def get_imagecmds(d):
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cmds = "\n"
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old_overrides = d.getVar('OVERRIDES', 0)
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alltypes = d.getVar('IMAGE_FSTYPES', True).split()
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types = d.getVar('IMAGE_FSTYPES', True).split()
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ctypes = d.getVar('COMPRESSIONTYPES', True).split()
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cimages = {}
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# Filter out all the compressed images from types
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for type in types:
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for ctype in ctypes:
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if type.endswith("." + ctype):
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basetype = type.rsplit(".", 1)[0]
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types[types.index(type)] = basetype
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if type not in cimages:
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cimages[basetype] = []
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cimages[basetype].append(ctype)
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# Live images will be processed via inheriting bbclass and
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# does not get processed here.
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# live images also depend on ext3 so ensure its present
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@@ -11,11 +25,24 @@ def get_imagecmds(d):
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types.append("ext3")
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types.remove("live")
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cmds += " rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.*"
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for type in types:
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ccmd = []
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subimages = []
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localdata = bb.data.createCopy(d)
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localdata.setVar('OVERRIDES', '%s:%s' % (type, old_overrides))
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bb.data.update_data(localdata)
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localdata.setVar('type', type)
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if type in cimages:
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for ctype in cimages[type]:
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ccmd.append("\t" + localdata.getVar("COMPRESS_CMD_" + ctype, True))
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subimages.append(type + "." + ctype)
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if type not in alltypes:
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ccmd.append(localdata.expand("\trm ${IMAGE_NAME}.rootfs.${type}"))
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else:
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subimages.append(type)
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localdata.setVar('ccmd', "\n".join(ccmd))
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localdata.setVar('subimages', " ".join(subimages))
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cmd = localdata.getVar("IMAGE_CMD", True)
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localdata.setVar('cmd', cmd)
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cmds += localdata.getVar("runimagecmd", True)
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@@ -25,11 +52,37 @@ runimagecmd () {
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# Image generation code for image type ${type}
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ROOTFS_SIZE=`du -ks ${IMAGE_ROOTFS}|awk '{base_size = ($1 * ${IMAGE_OVERHEAD_FACTOR}); OFMT = "%.0f" ; print ((base_size > ${IMAGE_ROOTFS_SIZE} ? base_size : ${IMAGE_ROOTFS_SIZE}) + ${IMAGE_ROOTFS_EXTRA_SPACE}) }'`
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${cmd}
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# Now create the needed compressed versions
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cd ${DEPLOY_DIR_IMAGE}/
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rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${type}
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ln -s ${IMAGE_NAME}.rootfs.${type} ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${type}
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${ccmd}
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# And create the symlinks
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for type in ${subimages}; do
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ln -s ${IMAGE_NAME}.rootfs.$type ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.$type
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done
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}
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def imagetypes_getdepends(d):
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def adddep(depstr, deps):
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for i in (depstr or "").split():
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if i not in deps:
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deps.append(i)
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deps = []
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ctypes = d.getVar('COMPRESSIONTYPES', True).split()
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for type in (d.getVar('IMAGE_FSTYPES', True) or "").split():
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basetype = type
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for ctype in ctypes:
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if type.endswith("." + ctype):
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basetype = type.rsplit(".", 1)[0]
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adddep(d.getVar("COMPRESS_DEPENDS_%s" % ctype, True), deps)
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break
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adddep(d.getVar('IMAGE_DEPENDS_%s' % basetype, True) , deps)
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depstr = ""
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for dep in deps:
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depstr += " " + dep + ":do_populate_sysroot"
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return depstr
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XZ_COMPRESSION_LEVEL ?= "-e -9"
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XZ_INTEGRITY_CHECK ?= "crc32"
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@@ -46,40 +99,11 @@ IMAGE_CMD_ext2 () {
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mv ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext2 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext2
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rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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}
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IMAGE_CMD_ext2.gz () {
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rm -rf ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN} && mkdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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genext2fs -b $ROOTFS_SIZE -i 4096 -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext2
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gzip -f -9 ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext2
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mv ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext2.gz ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext2.gz
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rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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}
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IMAGE_CMD_ext2.bz2 () {
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rm -rf ${DEPLOY_DIR_IMAGE}/tmp.gz && mkdir ${DEPLOY_DIR_IMAGE}/tmp.gz
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genext2fs -b $ROOTFS_SIZE -i 4096 -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext2
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bzip2 -f -9 ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext2
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mv ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext2.bz2 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext2.bz2
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rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz
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}
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IMAGE_CMD_ext2.lzma () {
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rm -rf ${DEPLOY_DIR_IMAGE}/tmp.gz && mkdir ${DEPLOY_DIR_IMAGE}/tmp.gz
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genext2fs -b $ROOTFS_SIZE -i 4096 -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext2
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lzma -f -7 ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext2
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mv ${DEPLOY_DIR_IMAGE}/tmp.gz/${IMAGE_NAME}.rootfs.ext2.lzma ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext2.lzma
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rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz
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}
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IMAGE_CMD_ext3 () {
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genext2fs -b $ROOTFS_SIZE -i 4096 -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext3
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tune2fs -j ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext3
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}
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IMAGE_CMD_ext3.gz () {
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rm -rf ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN} && mkdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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genext2fs -b $ROOTFS_SIZE -i 4096 -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext3
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tune2fs -j ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext3
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gzip -f -9 ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext3
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mv ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext3.gz ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext3.gz
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rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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}
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oe_mkext4fs () {
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genext2fs -b $ROOTFS_SIZE -i 4096 -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} $1
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@@ -97,13 +121,6 @@ oe_mkext4fs () {
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IMAGE_CMD_ext4 () {
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oe_mkext4fs ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4
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}
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IMAGE_CMD_ext4.gz () {
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rm -rf ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN} && mkdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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oe_mkext4fs ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext4
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gzip -f -9 ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext4
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mv ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext4.gz ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4.gz
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rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
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}
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IMAGE_CMD_btrfs () {
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mkfs.btrfs -b `expr ${ROOTFS_SIZE} \* 1024` ${EXTRA_IMAGECMD} -r ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.btrfs
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@@ -112,9 +129,6 @@ IMAGE_CMD_btrfs () {
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IMAGE_CMD_squashfs = "mksquashfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.squashfs ${EXTRA_IMAGECMD} -noappend"
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IMAGE_CMD_squashfs-lzma = "mksquashfs-lzma ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.squashfs-lzma ${EXTRA_IMAGECMD} -noappend"
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IMAGE_CMD_tar = "cd ${IMAGE_ROOTFS} && tar -cvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar ."
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IMAGE_CMD_tar.gz = "cd ${IMAGE_ROOTFS} && tar -zcvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.gz ."
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IMAGE_CMD_tar.bz2 = "cd ${IMAGE_ROOTFS} && tar -jcvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.bz2 ."
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IMAGE_CMD_tar.xz = "cd ${IMAGE_ROOTFS} && tar --xz -cvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.xz ."
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CPIO_TOUCH_INIT () {
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if [ ! -L ${IMAGE_ROOTFS}/init ]
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@@ -126,18 +140,6 @@ IMAGE_CMD_cpio () {
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${CPIO_TOUCH_INIT}
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cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio)
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}
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IMAGE_CMD_cpio.gz () {
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${CPIO_TOUCH_INIT}
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cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | gzip -c -9 >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz)
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}
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IMAGE_CMD_cpio.xz () {
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${CPIO_TOUCH_INIT}
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cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | xz -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} > ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.xz) ${EXTRA_IMAGECMD}
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}
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IMAGE_CMD_cpio.lzma () {
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${CPIO_TOUCH_INIT}
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cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | xz --format=lzma -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.lzma) ${EXTRA_IMAGECMD}
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}
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UBI_VOLNAME ?= "${MACHINE}-rootfs"
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@@ -159,9 +161,7 @@ EXTRA_IMAGECMD = ""
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EXTRA_IMAGECMD_jffs2 ?= "--pad --little-endian --eraseblock=0x40000"
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# Change these if you want default genext2fs behavior (i.e. create minimal inode number)
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EXTRA_IMAGECMD_ext2 ?= "-i 8192"
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EXTRA_IMAGECMD_ext2.gz ?= "-i 8192"
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EXTRA_IMAGECMD_ext3 ?= "-i 8192"
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EXTRA_IMAGECMD_ext3.gz ?= "-i 8192"
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EXTRA_IMAGECMD_btrfs ?= ""
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IMAGE_DEPENDS = ""
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@@ -169,22 +169,25 @@ IMAGE_DEPENDS_jffs2 = "mtd-utils-native"
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IMAGE_DEPENDS_sum.jffs2 = "mtd-utils-native"
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IMAGE_DEPENDS_cramfs = "cramfs-native"
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IMAGE_DEPENDS_ext2 = "genext2fs-native"
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IMAGE_DEPENDS_ext2.gz = "genext2fs-native"
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IMAGE_DEPENDS_ext2.bz2 = "genext2fs-native"
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IMAGE_DEPENDS_ext2.lzma = "genext2fs-native xz-native"
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IMAGE_DEPENDS_ext3 = "genext2fs-native e2fsprogs-native"
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IMAGE_DEPENDS_ext3.gz = "genext2fs-native e2fsprogs-native"
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IMAGE_DEPENDS_ext4 = "genext2fs-native e2fsprogs-native"
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IMAGE_DEPENDS_ext4.gz = "genext2fs-native e2fsprogs-native"
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IMAGE_DEPENDS_btrfs = "btrfs-tools-native"
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IMAGE_DEPENDS_squashfs = "squashfs-tools-native"
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IMAGE_DEPENDS_squashfs-lzma = "squashfs-lzma-tools-native"
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IMAGE_DEPENDS_tar.xz = "tar-native xz-native"
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IMAGE_DEPENDS_cpio.lzma = "xz-native"
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IMAGE_DEPENDS_cpio.xz = "xz-native"
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IMAGE_DEPENDS_ubi = "mtd-utils-native"
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IMAGE_DEPENDS_ubifs = "mtd-utils-native"
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IMAGE_DEPENDS_vmdk = "qemu-native"
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# This variable is available to request which values are suitable for IMAGE_FSTYPES
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IMAGE_TYPES = "jffs2 sum.jffs2 cramfs ext2 ext2.gz ext2.bz2 ext3 ext3.gz ext2.lzma btrfs live squashfs squashfs-lzma ubi tar tar.gz tar.bz2 tar.xz cpio cpio.gz cpio.xz cpio.lzma vmdk"
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COMPRESSIONTYPES = "gz bz2 lzma xz"
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COMPRESS_CMD_lzma = "lzma -k -f -7 ${IMAGE_NAME}.rootfs.${type}"
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COMPRESS_CMD_gz = "gzip -f -9 -c ${IMAGE_NAME}.rootfs.${type} > ${IMAGE_NAME}.rootfs.${type}.gz"
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COMPRESS_CMD_bz2 = "bzip2 -k ${IMAGE_NAME}.rootfs.${type}"
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COMPRESS_CMD_xz = "xz -k -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} ${IMAGE_NAME}.rootfs.${type}"
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COMPRESS_DEPENDS_lzma = "xz-native"
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COMPRESS_DEPENDS_gz = ""
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COMPRESS_DEPENDS_bz2 = ""
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COMPRESS_DEPENDS_xz = "xz-native"
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