diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2008-05-18 17:30:04 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2008-05-18 17:30:04 +0000 |
| commit | 2dfabe39918965db358452bea94d2a317c58309a (patch) | |
| tree | 578e1f4f602d81421a19367c1bf4b90c204ecc24 /target | |
| parent | 301ee97229491fbdd694e22aefaaf5058b93da48 (diff) | |
| download | mtk-20170518-2dfabe39918965db358452bea94d2a317c58309a.zip mtk-20170518-2dfabe39918965db358452bea94d2a317c58309a.tar.gz mtk-20170518-2dfabe39918965db358452bea94d2a317c58309a.tar.bz2 | |
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')
| -rw-r--r-- | 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)) |