Bump buildroot to 2019.02

bsp/buildroot/fs/f2fs/f2fs.mk

@@ -0,0 +1,45 @@
+################################################################################
+#
+# 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_COLD_FILES = $(call qstrip,$(BR2_TARGET_ROOTFS_F2FS_COLD_FILES))
+F2FS_HOT_FILES = $(call qstrip,$(BR2_TARGET_ROOTFS_F2FS_HOT_FILES))
+
+ifeq ($(BR2_TARGET_ROOTFS_F2FS_DISCARD),y)
+F2FS_DISCARD = 1
+else
+F2FS_DISCARD = 0
+endif
+
+F2FS_FEATURES = $(call qstrip,$(BR2_TARGET_ROOTFS_F2FS_FEATURES))
+
+F2FS_OPTS = \
+	-f \
+	-l "$(F2FS_LABEL)" \
+	-t $(F2FS_DISCARD) \
+	-o $(BR2_TARGET_ROOTFS_F2FS_OVERPROVISION) \
+	$(if $(F2FS_COLD_FILES),-e "$(F2FS_COLD_FILES)") \
+	$(if $(F2FS_HOT_FILES),-E "$(F2FS_HOT_FILES)") \
+	$(if $(F2FS_FEATURES),-O "$(F2FS_FEATURES)")
+
+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))