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fs/erofs: add support for creating EROFS rootfs image

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This patch makes possible to create rootfs image using
EROFS filesystem.

Signed-off-by: Gao Xiang <hsiangkao@aol.com>
[yann.morin.1998@free.fr:
  - simplify help text of filesystem entry
  - drop the compression choice, keep the single boolean
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Gao Xiang 2020-03-16 09:58:38 +08:00 committed by Yann E. MORIN
parent 013cc68bf7
commit f69f1fc302
3 changed files with 32 additions and 0 deletions
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1
fs/Config.in
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@ -5,6 +5,7 @@ source "fs/btrfs/Config.in"
source "fs/cloop/Config.in" source "fs/cloop/Config.in"
source "fs/cpio/Config.in" source "fs/cpio/Config.in"
source "fs/cramfs/Config.in" source "fs/cramfs/Config.in"
source "fs/erofs/Config.in"
source "fs/ext2/Config.in" source "fs/ext2/Config.in"
source "fs/f2fs/Config.in" source "fs/f2fs/Config.in"
source "fs/initramfs/Config.in" source "fs/initramfs/Config.in"

14
fs/erofs/Config.in Normal file
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@ -0,0 +1,14 @@
config BR2_TARGET_ROOTFS_EROFS
bool "erofs root filesystem"
select BR2_PACKAGE_HOST_EROFS_UTILS
help
Build a EROFS root filesystem.
if BR2_TARGET_ROOTFS_EROFS
config BR2_TARGET_ROOTFS_EROFS_LZ4HC
bool "lz4hc compression"
help
Use lz4 high-compression to compress data in the filesystem.
endif # BR2_TARGET_ROOTFS_EROFS

17
fs/erofs/erofs.mk Normal file
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@ -0,0 +1,17 @@
################################################################################
#
# Build the EROFS root filesystem image
#
################################################################################
ROOTFS_EROFS_DEPENDENCIES = host-erofs-utils
ifeq ($(BR2_TARGET_ROOTFS_EROFS_LZ4HC),y)
ROOTFS_EROFS_ARGS += -zlz4hc
endif
define ROOTFS_EROFS_CMD
$(HOST_DIR)/bin/mkfs.erofs $(ROOTFS_EROFS_ARGS) $@ $(TARGET_DIR)
endef
$(eval $(rootfs))