[OE-core] [PATCH 7/7] image_types.bbclass: replace genext2fs with mkdebugfs.sh

[Robert Yang]

The ext3 and ext4 rootfs generation relied on genext2fs and flipping
some bits to "convert" the ext2 filesystem to ext3 and ext4 in the past,
now we use the mkfs.ext3/ext4 to create the image, and use mkdebugfs.sh
to copy the files to the image.

[YOCTO #3848]

Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 meta/classes/image_types.bbclass | 45 +++++++++++++++-------------------------
 1 file changed, 17 insertions(+), 28 deletions(-)

diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index 6bb113d..92f85ed 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -135,34 +135,23 @@ IMAGE_CMD_sum.jffs2 = "${IMAGE_CMD_jffs2} && sumtool -i ${DEPLOY_DIR_IMAGE}/${IM
 
 IMAGE_CMD_cramfs = "mkcramfs ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cramfs ${EXTRA_IMAGECMD}"
 
-IMAGE_CMD_ext2 () {
-	rm -rf ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN} && mkdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
-	genext2fs -b $ROOTFS_SIZE -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext2
-	mv ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}/${IMAGE_NAME}.rootfs.ext2 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext2
-	rmdir ${DEPLOY_DIR_IMAGE}/tmp.gz-${PN}
-}
+oe_mkext234fs () {
+	fstype=$1
+	extra_imagecmd=""
 
-IMAGE_CMD_ext3 () {
-	genext2fs -b $ROOTFS_SIZE -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext3
-	tune2fs -j ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext3
-}
+	if [ $# -gt 1 ]; then
+		shift
+		extra_imagecmd=$@
+	fi
 
-oe_mkext4fs () {
-	genext2fs -b $ROOTFS_SIZE -d ${IMAGE_ROOTFS} ${EXTRA_IMAGECMD} $1
-	tune2fs -O extents,uninit_bg,dir_index,has_journal $1
-	e2fsck -yfDC0 $1 || chk=$?
-	case $chk in
-	0|1|2)
-	    ;;
-	*)
-	    return $chk
-	    ;;
-	esac
+	dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype count=$ROOTFS_SIZE bs=1k
+	yes | mkfs.$fstype $extra_imagecmd ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype
+	mkdebugfs.sh ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype
 }
 
-IMAGE_CMD_ext4 () {
-	oe_mkext4fs ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.ext4
-}
+IMAGE_CMD_ext2 = "oe_mkext234fs ext2 ${EXTRA_IMAGECMD}"
+IMAGE_CMD_ext3 = "oe_mkext234fs ext3 ${EXTRA_IMAGECMD}"
+IMAGE_CMD_ext4 = "oe_mkext234fs ext4 ${EXTRA_IMAGECMD}"
 
 IMAGE_CMD_btrfs () {
 	mkfs.btrfs -b `expr ${ROOTFS_SIZE} \* 1024` ${EXTRA_IMAGECMD} -r ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.btrfs
@@ -212,7 +201,7 @@ JFFS2_ENDIANNESS ?= "${@base_conditional('SITEINFO_ENDIANNESS', 'le', '--little-
 JFFS2_ERASEBLOCK ?= "0x40000"
 EXTRA_IMAGECMD_jffs2 ?= "--pad ${JFFS2_ENDIANNESS} --eraseblock=${JFFS2_ERASEBLOCK} --no-cleanmarkers"
 
-# Change these if you want default genext2fs behavior (i.e. create minimal inode number)
+# Change these if you want default mkfs behavior (i.e. create minimal inode number)
 EXTRA_IMAGECMD_ext2 ?= "-i 8192"
 EXTRA_IMAGECMD_ext3 ?= "-i 8192"
 EXTRA_IMAGECMD_ext4 ?= "-i 8192"
@@ -223,9 +212,9 @@ IMAGE_DEPENDS = ""
 IMAGE_DEPENDS_jffs2 = "mtd-utils-native"
 IMAGE_DEPENDS_sum.jffs2 = "mtd-utils-native"
 IMAGE_DEPENDS_cramfs = "cramfs-native"
-IMAGE_DEPENDS_ext2 = "genext2fs-native"
-IMAGE_DEPENDS_ext3 = "genext2fs-native e2fsprogs-native"
-IMAGE_DEPENDS_ext4 = "genext2fs-native e2fsprogs-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-lzma = "squashfs-tools-native"
-- 
1.7.11.2