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authorFelix Fietkau <nbd@openwrt.org>2008-05-18 17:30:04 +0000
committerFelix Fietkau <nbd@openwrt.org>2008-05-18 17:30:04 +0000
commit2dfabe39918965db358452bea94d2a317c58309a (patch)
tree578e1f4f602d81421a19367c1bf4b90c204ecc24 /target/linux
parent301ee97229491fbdd694e22aefaaf5058b93da48 (diff)
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bcm963xx: image generation using image tagger
This adds CFE tagged image generation in the BCM963xx target image Makefile. It has to generate its own LZMA compressed kernel because CFE is a LZMA nazi. It also seems that the Broadcom image tagger as well as CFE use AdvanceCOMP, which is based on a slightly older LZMA SDK. Anyways, some of the code is GPL, some of it is LGPL, so it might be that Broadcom owes some sources. Also, LZMA has a bug which causes it to generate different output when you are using stdin / stdout compared to plain files. I've just worked around the issue by using plain files. Signed-off-by: Axel Gembe <ago@bastart.eu.org> SVN-Revision: 11171
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/brcm63xx/image/Makefile27
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/image/Makefile b/target/linux/brcm63xx/image/Makefile
index 227dbd7a54..47c1df730d 100644
--- a/target/linux/brcm63xx/image/Makefile
+++ b/target/linux/brcm63xx/image/Makefile
@@ -27,25 +27,52 @@ define trxalign/squashfs
-a 1024
endef
+define Image/Build/CFE
+ # Generate the tagged image
+ $(STAGING_DIR_HOST)/bin/imagetag -i $(KDIR)/vmlinux.lzma.cfe -f $(KDIR)/root.$(1) \
+ -o $(BIN_DIR)/openwrt-$(2)-$(1)-cfe.bin \
+ -b $(2) -c $(3) -e $(LOADADDR) -l $(LOADADDR)
+# -b $(2) -c $(3) -e $(KERNEL_ENTRY) -l $(LOADADDR)
+
+ $(call prepare_generic_squashfs,$(BIN_DIR)/openwrt-$(2)-$(1)-cfe.bin)
+endef
+
define Build/Clean
$(MAKE) -C lzma-loader clean
endef
define Image/Prepare
+ # Standard LZMA kernel
cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+
+ # CFE is a LZMA nazi! It took me hours to find out the parameters!
+ # Also I think lzma has a bug cause it generates different output depending on
+ # if you use stdin / stdout or not. Use files instead of stdio here, cause
+ # otherwise CFE will complain and not boot the image.
+ $(STAGING_DIR_HOST)/bin/lzma e -d22 -fb64 -a1 $(KDIR)/vmlinux $(KDIR)/vmlinux.lzma.tmp
+
+ # Strip out the length, CFE doesn't like this
+ dd if=$(KDIR)/vmlinux.lzma.tmp of=$(KDIR)/vmlinux.lzma.cfe bs=5 count=1
+ dd if=$(KDIR)/vmlinux.lzma.tmp of=$(KDIR)/vmlinux.lzma.cfe ibs=13 obs=5 skip=1 seek=1 conv=notrunc
+ rm -f $(KDIR)/vmlinux.lzma.tmp
+
+ # Build the LZMA loader
rm -f $(KDIR)/loader.gz
$(MAKE) -C lzma-loader \
BUILD_DIR="$(KDIR)" \
TARGET="$(KDIR)" \
clean install
+
echo -ne "\\x00" >> $(KDIR)/loader.gz
rm -f $(KDIR)/fs_mark
touch $(KDIR)/fs_mark
$(call prepare_generic_squashfs,$(KDIR)/fs_mark)
+
endef
define Image/Build
$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1)) -f $(KDIR)/root.$(1)
+ $(call Image/Build/CFE,$(1),96345GW2,6345)
endef
$(eval $(call BuildImage))