image creation improvements

index 6b9f979..0e81b4e 100644
@@ -297,7 +297,15 @@ python setup_debugfs () {
 
 python () {
     vardeps = set()
-    ctypes = d.getVar('COMPRESSIONTYPES', True).split()
+    # We allow COMPRESSIONTYPES to have duplicates. That avoids breaking
+    # derived distros when OE-core or some other layer independently adds
+    # the same type. There is still only one command for each type, but
+    # presumably the commands will do the same when the type is the same,
+    # even when added in different places.
+    #
+    # Without de-duplication, gen_conversion_cmds() below
+    # would create the same compression command multiple times.
+    ctypes = set(d.getVar('COMPRESSIONTYPES', True).split())
     old_overrides = d.getVar('OVERRIDES', 0)
 
     def _image_base_type(type):

index 0e81b4e..06f2211 100644
@@ -143,7 +143,7 @@ IMAGE_TYPE_vm = '${@bb.utils.contains_any("IMAGE_FSTYPES", ["vmdk", "vdi", "qcow
 inherit ${IMAGE_TYPE_vm}
 
 python () {
-    deps = " " + imagetypes_getdepends(d)
+    deps = " " + image_getdepends(d)
     d.appendVarFlag('do_rootfs', 'depends', deps)
 
     deps = ""

@@ -308,19 +308,6 @@ python () {
     ctypes = set(d.getVar('COMPRESSIONTYPES', True).split())
     old_overrides = d.getVar('OVERRIDES', 0)
 
-    def _image_base_type(type):
-        basetype = type
-        for ctype in ctypes:
-            if type.endswith("." + ctype):
-                basetype = type[:-len("." + ctype)]
-                break
-
-        if basetype != type:
-            # New base type itself might be generated by a conversion command.
-            basetype = _image_base_type(basetype)
-
-        return basetype
-
     basetypes = {}
     alltypes = d.getVar('IMAGE_FSTYPES', True).split()
     typedeps = {}

@@ -331,7 +318,7 @@ python () {
             alltypes.append("debugfs_" + t)
 
     def _add_type(t):
-        baset = _image_base_type(t)
+        baset = image_split_type(t, ctypes)[0]
         input_t = t
         if baset not in basetypes:
             basetypes[baset]= []

@@ -350,7 +337,7 @@ python () {
             if dep not in alltypes:
                 alltypes.append(dep)
             _add_type(dep)
-            basedep = _image_base_type(dep)
+            basedep = image_split_type(dep, ctypes)[0]
             typedeps[baset].add(basedep)
 
         if baset != input_t:

@@ -420,8 +407,10 @@ python () {
                     if type not in alltypes:
                         rm_tmp_images.add(localdata.expand("${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}"))
 
-        for bt in basetypes[t]:
-            gen_conversion_cmds(bt)
+        for type in basetypes[t]:
+            # Probably t == bt, but better check explicitly, perhaps that'll change.
+            bt = image_split_type(type, ctypes)[0]
+            gen_conversion_cmds(bt, type)
 
         localdata.setVar('type', realt)
         if t not in alltypes:

78 lines not on this page · raw message

index 06f2211..46a4d03 100644
@@ -512,9 +512,9 @@ python create_symlinks() {
     if not link_name:
         return
     for type in subimages:
-        if os.path.exists(img_name + imgsuffix + type):
-            dst = deploy_dir + "/" + link_name + "." + type
-            src = img_name + imgsuffix + type
+        dst = deploy_dir + "/" + link_name + "." + type
+        src = img_name + imgsuffix + type
+        if os.path.exists(src):
             bb.note("Creating symlink: %s -> %s" % (dst, src))
             if os.path.islink(dst):
                 if d.getVar('RM_OLD_IMAGE', True) == "1" and \

@@ -522,6 +522,8 @@ python create_symlinks() {
                     os.remove(os.path.realpath(dst))
                 os.remove(dst)
             os.symlink(src, dst)
+        else:
+            bb.note("Skipping symlink, source does not exist: %s -> %s" % (dst, src))
 }
 
 MULTILIBRE_ALLOW_REP =. "${base_bindir}|${base_sbindir}|${bindir}|${sbindir}|${libexecdir}|${sysconfdir}|${nonarch_base_libdir}/udev|/lib/modules/[^/]*/modules.*|"

index ea6ced2..2fbec05 100644
@@ -43,7 +43,7 @@ ROOT_LIVE ?= "root=/dev/ram0"
 INITRD_IMAGE_LIVE ?= "core-image-minimal-initramfs"
 INITRD_LIVE ?= "${DEPLOY_DIR_IMAGE}/${INITRD_IMAGE_LIVE}-${MACHINE}.cpio.gz"
 
-ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.ext4"
+ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.ext4"
 
 IMAGE_TYPEDEP_live = "ext4"
 IMAGE_TYPEDEP_iso = "ext4"

index 2bbd9d3..fbfcf03 100644
@@ -26,14 +26,11 @@ do_bootdirectdisk[depends] += "dosfstools-native:do_populate_sysroot \
                                ${PN}:do_image_${VM_ROOTFS_TYPE} \
                                "
 
-IMAGE_TYPEDEP_vmdk = "${VM_ROOTFS_TYPE}"
-IMAGE_TYPEDEP_vdi = "${VM_ROOTFS_TYPE}"
-IMAGE_TYPEDEP_qcow2 = "${VM_ROOTFS_TYPE}"
+VM_ROOTFS_TYPE ?= "ext4"
 IMAGE_TYPEDEP_hdddirect = "${VM_ROOTFS_TYPE}"
-IMAGE_TYPES_MASKED += "vmdk vdi qcow2 hdddirect"
+IMAGE_TYPES_MASKED += "hdddirect"
 
-VM_ROOTFS_TYPE ?= "ext4"
-ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.${VM_ROOTFS_TYPE}"
+ROOTFS ?= "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.ext4"
 
 # Used by bootloader
 LABELS_VM ?= "boot"

@@ -150,27 +147,5 @@ run_qemu_img (){
     qemu-img convert -O $type ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.$type
     ln -sf ${IMAGE_NAME}.$type ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.$type
 }
-create_vmdk_image () {
-    run_qemu_img vmdk
-}
-
-create_vdi_image () {
-    run_qemu_img vdi
-}
-
-create_qcow2_image () {
-    run_qemu_img qcow2
-}
-
-python do_vmimg() {
-    if 'vmdk' in d.getVar('IMAGE_FSTYPES', True):
-        bb.build.exec_func('create_vmdk_image', d)
-    if 'vdi' in d.getVar('IMAGE_FSTYPES', True):
-        bb.build.exec_func('create_vdi_image', d)
-    if 'qcow2' in d.getVar('IMAGE_FSTYPES', True):
-        bb.build.exec_func('create_qcow2_image', d)
-}
 
-addtask bootdirectdisk before do_vmimg
-addtask vmimg after do_bootdirectdisk before do_image_complete
-do_vmimg[depends] += "qemu-native:do_populate_sysroot"
+addtask bootdirectdisk before do_image_complete

103 lines not on this page · raw message

index 028bc53..2233850 100644
@@ -247,6 +247,7 @@ IMAGE_DEPENDS_cramfs = "util-linux-native"
 IMAGE_DEPENDS_ext2 = "e2fsprogs-native"
 IMAGE_DEPENDS_ext3 = "e2fsprogs-native"
 IMAGE_DEPENDS_ext4 = "e2fsprogs-native"
+IMAGE_DEPENDS_hdddirect = "${IMAGE_DEPENDS_ext4}"
 IMAGE_DEPENDS_btrfs = "btrfs-tools-native"
 IMAGE_DEPENDS_squashfs = "squashfs-tools-native"
 IMAGE_DEPENDS_squashfs-xz = "squashfs-tools-native"

@@ -265,6 +266,9 @@ IMAGE_DEPENDS_iso = "${IMAGE_DEPENDS_ext4}"
 IMAGE_DEPENDS_hddimg = "${IMAGE_DEPENDS_ext4}"
 
 # This variable is available to request which values are suitable for IMAGE_FSTYPES
+# TODO: several other variations are now also possible, for example ext4.zip,
+# hdddirect.xz, hdddirect.vdi.xz. Which variations are supposed to be listed here
+# and which not? Generate all possible variations dynamically?
 IMAGE_TYPES = " \
     jffs2 jffs2.sum \
     cramfs \

@@ -278,15 +282,15 @@ IMAGE_TYPES = " \
     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.vmdk \
+    hdddirect.vdi \
+    hdddirect.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"
+COMPRESSIONTYPES = "gz bz2 lzma xz lz4 zip sum md5sum sha1sum sha224sum sha256sum sha384sum sha512sum bmap vmdk vdi qcow2"
 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}"

@@ -294,6 +298,9 @@ COMPRESS_CMD_xz = "xz -f -k -c ${XZ_COMPRESSION_LEVEL} ${XZ_THREADS} --check=${X
 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_vmdk = "qemu-img convert -O vmdk ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.vmdk"
+COMPRESS_CMD_vdi = "qemu-img convert -O vdi ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.vdi"
+COMPRESS_CMD_qcow2 = "qemu-img convert -O qcow2 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.${type}.qcow2"
 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"

@@ -309,6 +316,9 @@ COMPRESS_DEPENDS_lz4 = "lz4-native"
 COMPRESS_DEPENDS_zip = "zip-native"
 COMPRESS_DEPENDS_sum = "mtd-utils-native"
 COMPRESS_DEPENDS_bmap = "bmap-tools-native"
+COMPRESS_DEPENDS_vmdk = "qemu-native"
+COMPRESS_DEPENDS_vdi = "qemu-native"
+COMPRESS_DEPENDS_qcow2 = "qemu-native"
 
 RUNNABLE_IMAGE_TYPES ?= "ext2 ext3 ext4"
 RUNNABLE_MACHINE_PATTERNS ?= "qemu"

@@ -319,7 +329,7 @@ DEPLOYABLE_IMAGE_TYPES ?= "hddimg iso"
 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.
+# images that will not be built at do_rootfs time: hdddirect, hddimg, iso, etc.
 IMAGE_TYPES_MASKED ?= ""
 
 # The WICVARS variable is used to define list of bitbake variables used in wic code

index 4234d75..7543362 100644
@@ -56,7 +56,6 @@ do_testsdk[doc] = "Installs an SDK and performs runtime tests on the tools insta
 do_uboot_mkimage[doc] = "Creates a uImage file from the kernel for the U-Boot bootloader"
 do_unpack[doc] = "Unpacks the source code into a working directory"
 do_validate_branches[doc] = "Ensures that the source/meta branches are on the locations specified by their SRCREV values for a linux-yocto style kernel"
-do_vmimg[doc] = "Creates an image for use with VMware or VirtualBox compatible virtual machine hosts (based on IMAGE_FSTYPES either .vmdk or .vdi)"
 
 # DESCRIPTIONS FOR VARIABLES #
 

index 569fb3a..48f8282 100644
@@ -17,7 +17,7 @@ IMAGE_ROOTFS_EXTRA_SPACE = "41943040"
 APPEND += "rootfstype=ext4 quiet"
 
 DEPENDS = "zip-native"
-IMAGE_FSTYPES = "vmdk"
+IMAGE_FSTYPES = "hdddirect.vmdk"
 
 inherit core-image module-base
 

@@ -106,7 +106,7 @@ create_bundle_files () {
 	cd ${WORKDIR}
 	mkdir -p Yocto_Build_Appliance
 	cp *.vmx* Yocto_Build_Appliance
-	ln -sf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.vmdk Yocto_Build_Appliance/Yocto_Build_Appliance.vmdk
+	ln -sf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hdddirect.vmdk Yocto_Build_Appliance/Yocto_Build_Appliance.vmdk
 	zip -r ${DEPLOY_DIR_IMAGE}/Yocto_Build_Appliance-${DATETIME}.zip Yocto_Build_Appliance
 	ln -sf Yocto_Build_Appliance-${DATETIME}.zip ${DEPLOY_DIR_IMAGE}/Yocto_Build_Appliance.zip 
 }

@@ -116,5 +116,5 @@ python do_bundle_files() {
     bb.build.exec_func('create_bundle_files', d)
 }
 
-addtask bundle_files after do_vmimg before do_build
+addtask bundle_files after do_image_complete before do_build
 do_bundle_files[nostamp] = "1"

index a1751dc..47d1c9f 100644
@@ -118,7 +118,7 @@ def rootfs_variables(d):
                  'IMAGE_ROOTFS_MAXSIZE','IMAGE_NAME','IMAGE_LINK_NAME','IMAGE_MANIFEST','DEPLOY_DIR_IMAGE','RM_OLD_IMAGE','IMAGE_FSTYPES','IMAGE_INSTALL_COMPLEMENTARY','IMAGE_LINGUAS',
                  'MULTILIBRE_ALLOW_REP','MULTILIB_TEMP_ROOTFS','MULTILIB_VARIANTS','MULTILIBS','ALL_MULTILIB_PACKAGE_ARCHS','MULTILIB_GLOBAL_VARIANTS','BAD_RECOMMENDATIONS','NO_RECOMMENDATIONS',
                  'PACKAGE_ARCHS','PACKAGE_CLASSES','TARGET_VENDOR','TARGET_ARCH','TARGET_OS','OVERRIDES','BBEXTENDVARIANT','FEED_DEPLOYDIR_BASE_URI','INTERCEPT_DIR','USE_DEVFS',
-                 'COMPRESSIONTYPES', 'IMAGE_GEN_DEBUGFS', 'ROOTFS_RO_UNNEEDED']
+                 'CONVERSIONTYPES', 'IMAGE_GEN_DEBUGFS', 'ROOTFS_RO_UNNEEDED']
     variables.extend(rootfs_command_variables(d))
     variables.extend(variable_depends(d))
     return " ".join(variables)

@@ -149,6 +149,7 @@ inherit ${IMAGE_TYPE_live}
 IMAGE_TYPE_vm = '${@ "image-vm" if image_type_active("hdddirect", d) else ""}'
 inherit ${IMAGE_TYPE_vm}
 
+
 python () {
     deps = " " + image_getdepends(d)
     d.appendVarFlag('do_rootfs', 'depends', deps)

@@ -304,7 +305,7 @@ python setup_debugfs () {
 
 python () {
     vardeps = set()
-    # We allow COMPRESSIONTYPES to have duplicates. That avoids breaking
+    # We allow CONVERSIONTYPES to have duplicates. That avoids breaking
     # derived distros when OE-core or some other layer independently adds
     # the same type. There is still only one command for each type, but
     # presumably the commands will do the same when the type is the same,

@@ -312,7 +313,7 @@ python () {
     #
     # Without de-duplication, gen_conversion_cmds() below
     # would create the same compression command multiple times.
-    ctypes = set(d.getVar('COMPRESSIONTYPES', True).split())
+    ctypes = set(d.getVar('CONVERSIONTYPES', True).split())
     old_overrides = d.getVar('OVERRIDES', 0)
 
     basetypes = {}

@@ -404,9 +405,10 @@ python () {
                     # Create input image first.
                     gen_conversion_cmds(type)
                     localdata.setVar('type', type)
-                    cmd = "\t" + localdata.getVar("COMPRESS_CMD_" + ctype, True)
+                    cmd = "\t" + (localdata.getVar("CONVERSION_CMD_" + ctype, True) or localdata.getVar("COMPRESS_CMD_" + ctype, True))
                     if cmd not in cmds:
                         cmds.append(cmd)
+                    vardeps.add('CONVERSION_CMD_' + ctype)
                     vardeps.add('COMPRESS_CMD_' + ctype)
                     subimage = type + "." + ctype
                     if subimage not in subimages:

79 lines not on this page · raw message

index 19e4aa2..f72d9b2 100644
@@ -8,19 +8,19 @@ oe_mkimage () {
     fi
 }
 
-COMPRESSIONTYPES += "gz.u-boot bz2.u-boot lzma.u-boot u-boot"
+CONVERSIONTYPES += "gz.u-boot bz2.u-boot lzma.u-boot u-boot"
 
-COMPRESS_DEPENDS_u-boot = "u-boot-mkimage-native"
-COMPRESS_CMD_u-boot      = "oe_mkimage ${IMAGE_NAME}.rootfs.${type} none"
+CONVERSION_DEPENDS_u-boot = "u-boot-mkimage-native"
+CONVERSION_CMD_u-boot      = "oe_mkimage ${IMAGE_NAME}.rootfs.${type} none"
 
-COMPRESS_DEPENDS_gz.u-boot = "u-boot-mkimage-native"
-COMPRESS_CMD_gz.u-boot      = "${COMPRESS_CMD_gz}; oe_mkimage ${IMAGE_NAME}.rootfs.${type}.gz gzip clean"
+CONVERSION_DEPENDS_gz.u-boot = "u-boot-mkimage-native"
+CONVERSION_CMD_gz.u-boot      = "${CONVERSION_CMD_gz}; oe_mkimage ${IMAGE_NAME}.rootfs.${type}.gz gzip clean"
 
-COMPRESS_DEPENDS_bz2.u-boot = "u-boot-mkimage-native"
-COMPRESS_CMD_bz2.u-boot      = "${COMPRESS_CMD_bz2}; oe_mkimage ${IMAGE_NAME}.rootfs.${type}.bz2 bzip2 clean"
+CONVERSION_DEPENDS_bz2.u-boot = "u-boot-mkimage-native"
+CONVERSION_CMD_bz2.u-boot      = "${CONVERSION_CMD_bz2}; oe_mkimage ${IMAGE_NAME}.rootfs.${type}.bz2 bzip2 clean"
 
-COMPRESS_DEPENDS_lzma.u-boot = "u-boot-mkimage-native"
-COMPRESS_CMD_lzma.u-boot      = "${COMPRESS_CMD_lzma}; oe_mkimage ${IMAGE_NAME}.rootfs.${type}.lzma lzma clean"
+CONVERSION_DEPENDS_lzma.u-boot = "u-boot-mkimage-native"
+CONVERSION_CMD_lzma.u-boot      = "${CONVERSION_CMD_lzma}; oe_mkimage ${IMAGE_NAME}.rootfs.${type}.lzma lzma clean"
 
 IMAGE_TYPES += "ext2.u-boot ext2.gz.u-boot ext2.bz2.u-boot ext2.lzma.u-boot ext3.gz.u-boot ext4.gz.u-boot cpio.gz.u-boot"
 

index 47d1c9f..ebbdf06 100644
@@ -326,7 +326,7 @@ python () {
             alltypes.append("debugfs_" + t)
 
     def _add_type(t):
-        baset = image_split_type(t, ctypes)[0]
+        baset = image_split_type(t, ctypes, d)[0]
         input_t = t
         if baset not in basetypes:
             basetypes[baset]= []

@@ -345,7 +345,7 @@ python () {
             if dep not in alltypes:
                 alltypes.append(dep)
             _add_type(dep)
-            basedep = image_split_type(dep, ctypes)[0]
+            basedep = image_split_type(dep, ctypes, d)[0]
             typedeps[baset].add(basedep)
 
         if baset != input_t:

@@ -396,14 +396,17 @@ python () {
         d.delVarFlag('IMAGE_CMD_' + realt, 'func')
 
         rm_tmp_images = set()
-        def gen_conversion_cmds(bt):
+        def gen_conversion_cmds(basetype, type):
+            if basetype == type:
+                # Done, no further conversions needed.
+                return
             for ctype in ctypes:
-                if bt.endswith("." + ctype):
-                    type = bt[0:-len(ctype) - 1]
+                if type.endswith("." + ctype):
+                    type = type[0:-len(ctype) - 1]
                     if type.startswith("debugfs_"):
                         type = type[8:]
                     # Create input image first.
-                    gen_conversion_cmds(type)
+                    gen_conversion_cmds(basetype, type)
                     localdata.setVar('type', type)
                     cmd = "\t" + (localdata.getVar("CONVERSION_CMD_" + ctype, True) or localdata.getVar("COMPRESS_CMD_" + ctype, True))
                     if cmd not in cmds:

@@ -418,7 +421,7 @@ python () {
 
         for type in basetypes[t]:
             # Probably t == bt, but better check explicitly, perhaps that'll change.
-            bt = image_split_type(type, ctypes)[0]
+            bt = image_split_type(type, ctypes, d)[0]
             gen_conversion_cmds(bt, type)
 
         localdata.setVar('type', realt)

index 225142b..8e79731 100644
@@ -9,10 +9,20 @@ IMAGE_NAME_SUFFIX ??= ".rootfs"
 # set this value to 2048 (2MiB alignment).
 IMAGE_ROOTFS_ALIGNMENT ?= "1"
 
-def image_split_type(type, allctypes):
+def image_split_type(type, allctypes, d):
     '''Returns (basetype, set of compression types in use).'''
     basetype = type
     compressiontypes = set()
+
+    # Abort stripping the type further if "basetype" has a matching
+    # IMAGE_CMD or is a masked image type. For example, if there
+    # was a fictional IMAGE_CMD_ext4.xz which creates a compressed
+    # file directly, then we should use that instead of using
+    # IMAGE_CMD_ext4 + CONVERSION_CMD_xz.
+    if d.getVar('IMAGE_CMD_' + basetype, True) or \
+        basetype in d.getVar('IMAGE_TYPES_MASKED', True).split():
+            return (basetype, compressiontypes)
+
     for ctype in allctypes:
         if type.endswith("." + ctype):
              basetype = type[:-len("." + ctype)]

@@ -21,7 +31,7 @@ def image_split_type(type, allctypes):
 
     if basetype != type:
         # New base type itself might be generated by a conversion command.
-        basetype, newctypes = image_split_type(basetype, allctypes)
+        basetype, newctypes = image_split_type(basetype, allctypes, d)
         compressiontypes.update(newctypes)
 
     return (basetype, compressiontypes)

@@ -38,7 +48,7 @@ def image_getdepends(d):
     deps = []
     ctypes = set(d.getVar('COMPRESSIONTYPES', True).split())
     for type in (d.getVar('IMAGE_FSTYPES', True) or "").split():
-        basetype, compressiontypes = image_split_type(type, ctypes)
+        basetype, compressiontypes = image_split_type(type, ctypes, d)
         for ctype in compressiontypes:
             adddep(d.getVar("COMPRESS_DEPENDS_%s" % ctype, True), deps)
         for typedepends in (d.getVar("IMAGE_TYPEDEP_%s" % basetype, True) or "").split():