From 6f727ce1fe190dcaaa0ae9b254698dbea67ce63a Mon Sep 17 00:00:00 2001 From: Grzegorz Blach Date: Fri, 26 Oct 2018 22:00:16 +0200 Subject: [PATCH] fs/f2fs: add support for creating a f2fs image This patch makes possible to create rootfs image using f2fs filesystem. Signed-off-by: Grzegorz Blach [Thomas: - keep only the minimal functionality, as suggested by Yann E. Morin - use truncate -s instead of dd to create the initial empty image file, as suggested by Yann E. Morin] Signed-off-by: Thomas Petazzoni --- fs/Config.in | 1 + fs/f2fs/Config.in | 21 +++++++++++++++++++++ fs/f2fs/f2fs.mk | 30 ++++++++++++++++++++++++++++++ 3 files changed, 52 insertions(+) create mode 100644 fs/f2fs/Config.in create mode 100644 fs/f2fs/f2fs.mk diff --git a/fs/Config.in b/fs/Config.in index 24f22fd7e3..527051ef54 100644 --- a/fs/Config.in +++ b/fs/Config.in @@ -6,6 +6,7 @@ source "fs/cloop/Config.in" source "fs/cpio/Config.in" source "fs/cramfs/Config.in" source "fs/ext2/Config.in" +source "fs/f2fs/Config.in" source "fs/initramfs/Config.in" source "fs/iso9660/Config.in" source "fs/jffs2/Config.in" diff --git a/fs/f2fs/Config.in b/fs/f2fs/Config.in new file mode 100644 index 0000000000..e62bc652ef --- /dev/null +++ b/fs/f2fs/Config.in @@ -0,0 +1,21 @@ +config BR2_TARGET_ROOTFS_F2FS + bool "f2fs root filesystem" + select BR2_PACKAGE_HOST_F2FS_TOOLS + help + Build a f2fs root filesystem. If you enable this option, you + probably want to enable the f2fs-tools package too. + +if BR2_TARGET_ROOTFS_F2FS + +config BR2_TARGET_ROOTFS_F2FS_LABEL + string "filesystem label" + +config BR2_TARGET_ROOTFS_F2FS_SIZE + string "filesystem size" + default "100M" + help + The size of the filesystem image in bytes. + Suffix with K, M, G or T for power-of-two kilo-, mega-, giga- + or terabytes. + +endif # BR2_TARGET_ROOTFS_F2FS diff --git a/fs/f2fs/f2fs.mk b/fs/f2fs/f2fs.mk new file mode 100644 index 0000000000..c954386b05 --- /dev/null +++ b/fs/f2fs/f2fs.mk @@ -0,0 +1,30 @@ +################################################################################ +# +# Build the f2fs root filesystem image +# +################################################################################ + +F2FS_SIZE = $(call qstrip,$(BR2_TARGET_ROOTFS_F2FS_SIZE)) +ifeq ($(BR2_TARGET_ROOTFS_F2FS)-$(F2FS_SIZE),y-) +$(error BR2_TARGET_ROOTFS_F2FS_SIZE cannot be empty) +endif + +# qstrip results in stripping consecutive spaces into a single one. So the +# variable is not qstrip-ed to preserve the integrity of the string value. +F2FS_LABEL := $(subst ",,$(BR2_TARGET_ROOTFS_F2FS_LABEL)) +# ") + +F2FS_OPTS = \ + -f \ + -l "$(F2FS_LABEL)" + +ROOTFS_F2FS_DEPENDENCIES = host-f2fs-tools + +define ROOTFS_F2FS_CMD + $(RM) -f $@ + truncate -s $(F2FS_SIZE) $@ + $(HOST_DIR)/sbin/mkfs.f2fs $(F2FS_OPTS) $@ + $(HOST_DIR)/sbin/sload.f2fs -f $(TARGET_DIR) $@ +endef + +$(eval $(rootfs)) -- 2.30.2