From 0ee950491197e8c528249d64ca3276b39bad0ddd Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Mon, 20 Apr 2015 13:57:43 +0000
Subject: [PATCH] all: replace genext2fs with make_ext4fs

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 45517
---
 include/image.mk                            | 14 ++++----
 target/linux/x86/image/gen_image_generic.sh |  6 ++--
 tools/Makefile                              |  2 +-
 tools/make-ext4fs/Makefile                  | 36 +++++++++++++++++++++
 4 files changed, 46 insertions(+), 12 deletions(-)
 create mode 100644 tools/make-ext4fs/Makefile

diff --git a/include/image.mk b/include/image.mk
index bd6a88af61f..788d593f949 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -231,15 +231,15 @@ define Image/mkfs/targz
 	$(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE),-$(PROFILE))-rootfs.tar.gz --numeric-owner --owner=0 --group=0 -C $(TARGET_DIR)/ .
 endef
 
-E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024/$(CONFIG_TARGET_EXT4_BLOCKSIZE))))
+E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))
 
 define Image/mkfs/ext4
-# generate an ext2 fs
-	$(STAGING_DIR_HOST)/bin/genext2fs -U -B $(CONFIG_TARGET_EXT4_BLOCKSIZE) -b $(E2SIZE) -N $(CONFIG_TARGET_EXT4_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4 -m $(CONFIG_TARGET_EXT4_RESERVED_PCT) $(MKFS_DEVTABLE_OPT)
-# convert it to ext4
-	$(STAGING_DIR_HOST)/bin/tune2fs $(if $(CONFIG_TARGET_EXT4_JOURNAL),-j) -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
-# fix it up
-	$(STAGING_DIR_HOST)/bin/e2fsck -fy $(KDIR)/root.ext4
+	$(STAGING_DIR_HOST)/bin/make_ext4fs \
+		-l $(E2SIZE) -b $(CONFIG_TARGET_EXT4_BLOCKSIZE) \
+		-i $(CONFIG_TARGET_EXT4_MAXINODE) \
+		-m $(CONFIG_TARGET_EXT4_RESERVED_PCT) \
+		$(if $(CONFIG_TARGET_EXT4_JOURNAL),,-J) \
+		$(KDIR)/root.ext4 $(TARGET_DIR)/
 endef
 
 define Image/mkfs/prepare/default
diff --git a/target/linux/x86/image/gen_image_generic.sh b/target/linux/x86/image/gen_image_generic.sh
index 3fb31f6e40c..17d969b96b4 100755
--- a/target/linux/x86/image/gen_image_generic.sh
+++ b/target/linux/x86/image/gen_image_generic.sh
@@ -23,17 +23,15 @@ cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512)))
 set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m ${ALIGN:+-l $ALIGN} ${SIGNATURE:+-S 0x$SIGNATURE}`
 
 KERNELOFFSET="$(($1 / 512))"
-KERNELSIZE="$(($2 / 512))"
+KERNELSIZE="$2"
 ROOTFSOFFSET="$(($3 / 512))"
 ROOTFSSIZE="$(($4 / 512))"
 
-BLOCKS="$((($KERNELSIZE / 2) - 1))"
-
 [ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE"
 dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc
 
 [ -n "$NOGRUB" ] && exit 0
 
-genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel"
+make_ext4fs -J -l "$KERNELSIZE" "$OUTPUT.kernel" "$KERNELDIR"
 dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
 rm -f "$OUTPUT.kernel"
diff --git a/tools/Makefile b/tools/Makefile
index 7d4ab01ce59..2f516d2383e 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -25,7 +25,7 @@ endif
 
 tools-$(BUILD_TOOLCHAIN) += gmp mpfr mpc libelf
 tools-y += m4 libtool autoconf automake flex bison pkg-config sed mklibs
-tools-y += sstrip genext2fs e2fsprogs mtd-utils mkimage
+tools-y += sstrip make-ext4fs e2fsprogs mtd-utils mkimage
 tools-y += firmware-utils patch-image patch quilt yaffs2 flock padjffs2
 tools-y += mm-macros missing-macros xz cmake scons bc findutils gengetopt patchelf
 tools-$(CONFIG_TARGET_orion_generic) += wrt350nv2-builder upslug2
diff --git a/tools/make-ext4fs/Makefile b/tools/make-ext4fs/Makefile
new file mode 100644
index 00000000000..5149ed4a14c
--- /dev/null
+++ b/tools/make-ext4fs/Makefile
@@ -0,0 +1,36 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=make-ext4fs
+PKG_VERSION:=2015-04-08
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=http://git.openwrt.org/project/make_ext4fs.git
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_VERSION:=2f713da924fa20cf89c25f2d122b54b959b09f87
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+PKG_MIRROR_MD5SUM:=c88f4f7c76e3142fc5ef12a723d9ef9b
+PKG_CAT:=zcat
+
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION)
+
+include $(INCLUDE_DIR)/host-build.mk
+
+define Host/Compile
+	$(MAKE) -C $(HOST_BUILD_DIR) make_ext4fs
+endef
+
+define Host/Install
+	$(INSTALL_BIN) $(HOST_BUILD_DIR)/make_ext4fs $(STAGING_DIR_HOST)/bin/
+endef
+
+define Host/Clean
+	rm -f $(STAGING_DIR_HOST)/bin/make_ext4fs
+endef
+
+$(eval $(call HostBuild))