[OpenWrt-Devel] [PATCH 1/2] include/image.mk: Introduce option to wrap kernel into JFFS2

[Benjamin Berg]

Some devices like the NBG6616 and NBG6617 expect the kernel to be
in a JFFS2 partition. This macro allows wrapping the kernel so that
a normal squashfs+jffs partition can be used for the rest of the
firmware.

Signed-off-by: Benjamin Berg <benjamin at sipsolutions.net>
---
 include/image.mk | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/image.mk b/include/image.mk
index 43980bc..8a23800 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -347,6 +347,21 @@ define Build/gzip
 	@mv $@.new $@
 endef
 
+define Build/jffs2
+	mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1))
+	cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1)
+
+	$(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad=$$(($(subst k,* 1024,$(subst m, * 1024k,$(KERNEL_SIZE))))) \
+		$(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
+		--squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
+		-o $@.new \
+		-d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
+		2>&1 1>/dev/null | awk '/^.+$$$$/'
+
+	@rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
+	@mv $@.new $@
+endef
+
 define Build/kernel-bin
 	rm -f $@
 	cp $^ $@
-- 
2.6.2
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