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| author | Sebastian Kemper <sebastian_ml@gmx.net> | 2018-12-01 19:13:50 +0100 |
|---|---|---|
| committer | Christian Lamparter <chunkeey@gmail.com> | 2018-12-17 00:21:34 +0100 |
| commit | 247fdceab6caa1d3bc29ca629833a2f705eb9d59 (patch) | |
| tree | b749d0435937830cfea77183242e40fb7715e17c | |
| parent | 2630aae36fc2628647c349fc680c7b595fd73e4f (diff) | |
| download | upstream-247fdceab6caa1d3bc29ca629833a2f705eb9d59.tar.gz upstream-247fdceab6caa1d3bc29ca629833a2f705eb9d59.tar.bz2 upstream-247fdceab6caa1d3bc29ca629833a2f705eb9d59.zip | |
image: add cameo-factory command
This command enables factory image generation for Cameo boards. On
upgrade the vendor firmware will check the size of the provided image
and if a specific string is located at the end of the binary.
cameo-factory will generate an image that the vendor firmware accepts.
Tested on a D-Link DIR-825 C1 with vendor firmwares 3.01 and 3.04.
Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>
| -rw-r--r-- | include/image-commands.mk | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/image-commands.mk b/include/image-commands.mk index ac724d20ac..63539bad08 100644 --- a/include/image-commands.mk +++ b/include/image-commands.mk @@ -44,6 +44,18 @@ define Build/buffalo-dhp-image mv $@.new $@ endef +# blow up binary to given size and put a given string at its end: +# cameo-factory <size[k]> <string> +define Build/cameo-factory + factory_stamp=$(word 2,$(1)); \ + ((reduced_size=$(subst k,*1024,$(word 1,$(1)))-$${#factory_stamp})); \ + ( \ + dd if=$@ bs=$$reduced_size conv=sync; \ + echo -n $$factory_stamp; \ + ) > $@.new && \ + mv $@.new $@ +endef + define Build/eva-image $(STAGING_DIR_HOST)/bin/lzma2eva $(KERNEL_LOADADDR) $(KERNEL_LOADADDR) $@ $@.new mv $@.new $@ |