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 <[EMAIL PROTECTED]>
---
target/linux/brcm63xx/image/Makefile | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/target/linux/brcm63xx/image/Makefile
b/target/linux/brcm63xx/image/Makefile
index 227dbd7..47c1df7 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))
--
1.5.5.1
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