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openwrt-xburst/target/linux/orion/image/generic.mk
florian 6147ee7cc3 [orion] generic: enhanced image Makefile 
* Creation of uImage for WNR854T only done once (before 2x for jffs2 build and 1x for squashfs build)
* Got rid of unneccessary padding of rootfs partition
* ARM zImages always need a machine id, therefore do not copy generic (=no id) uImage to BIN_DIR, instead copy zImage
* Generalized functions for easier re-using and enhancing (e.g. D-Link DNS 323 implementation would be only a couple lines)
* Copy rootfs partitions to BIN_DIR, just like it is done for D-Link DNS 323
* Use variables to allows easily changing for custom builds, e.g. kernel mtd size for symbols
* Size check of kernel files to avoid builds that break devices
* Use for "-sysupgrade" and "-factory" in image names (like ar71xx, brcm63xx, etc.) to avoid questions about which image to use

Signed-off by: Matthias Buecher <mail@maddes.net>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33174 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-08-13 14:46:47 +00:00

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#
# Copyright (C) 2008-2012 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
### DO NOT INDENT LINES CONTAINING $(call xyz) AS THIS MAY CHANGE THE CONTEXT
### OF THE FIRST LINE IN THE CALLED VARIABLE (NOTE: variable!)
### see http://www.gnu.org/software/make/manual/html_node/Call-Function.html#Call-Function
### ACTUALLY IT IS A SIMPLE MACRO EXPANSION
### use round brackets for make variables, and curly brackets for shell variables
## Kernel mtd partition size in KiB
KERNEL_MTD_SIZE:=1024
# Netgear WNR854T: erase size is 128KiB = 0x00020000 = 131072
ERASE_SIZE_WNR854T:=128
UIMAGE_FILE_NAME_WNR854T:=uImage
# Linksys WRT350N v2: erase size is 64KiB = 0x00010000 = 65536
ERASE_SIZE_WRT350Nv2:=64
# define JFFS2 sizes for include/image.mk
JFFS2_BLOCKSIZE:=64k 128k
###
### Image/Prepare
###
define Image/Prepare
### Dummy comment for indented calls of Image/Prepare
cp '$(LINUX_DIR)/arch/arm/boot/zImage' '$(BIN_DIR)/$(IMG_PREFIX)-zImage'
endef
###
### Image/BuildKernel
###
define Image/BuildKernel
### Dummy comment for indented calls of Image/BuildKernel
## Netgear WNR854T: mach id 1801 (0x0709)
$(call Image/BuildKernel/ARM/zImage,wnr854t,"\x07\x1c\xa0\xe3\x09\x10\x81\xe3")
$(call Image/BuildKernel/ARM/uImage,wnr854t)
ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y) # nothing more to do for a ramdisk build
$(call Image/BuildKernel/JFFS2uImage,wnr854t,$(ERASE_SIZE_WNR854T),$(UIMAGE_FILE_NAME_WNR854T))
$(call Image/Default/FileSizeCheck,$(KDIR)/wnr854t-uImage.jffs2,$(shell expr $(KERNEL_MTD_SIZE) \* 1024))
endif
## Linksys WRT350N v2: mach id 1633 (0x0661)
$(call Image/BuildKernel/ARM/zImage,wrt350nv2,"\x06\x1c\xa0\xe3\x61\x10\x81\xe3")
$(call Image/BuildKernel/ARM/uImage,wrt350nv2)
ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y) # nothing more to do for a ramdisk build
$(call Image/Default/FileSizeCheck,$(KDIR)/wrt350nv2-uImage,$(shell expr $(KERNEL_MTD_SIZE) \* 1024))
endif
endef
define Image/BuildKernel/ARM/zImage
# merge machine id and regular zImage into one file
# parameters: 1 = machine name, 2 = machine id as string in quotes
# $(BOARD) kernel zImage for $(1)
echo -en $(2) > '$(KDIR)/$(1)-zImage'
cat '$(LINUX_DIR)/arch/arm/boot/zImage' >> '$(KDIR)/$(1)-zImage'
cp '$(KDIR)/$(1)-zImage' '$(BIN_DIR)/openwrt-$(1)-zImage'
endef
define Image/BuildKernel/ARM/uImage
# create uImage from zImage
# parameters: 1 = machine name
# $(BOARD) kernel uImage for $(1)
'$(STAGING_DIR_HOST)/bin/mkimage' -A arm -O linux -T kernel \
-C none -a 0x00008000 -e 0x00008000 -n 'Linux-$(LINUX_VERSION)' \
-d '$(KDIR)/$(1)-zImage' '$(KDIR)/$(1)-uImage'
cp '$(KDIR)/$(1)-uImage' '$(BIN_DIR)/openwrt-$(1)-uImage'
endef
define Image/BuildKernel/JFFS2uImage
# create JFFS2 partition with uImage file (result is already padded to erase size)
# parameters: 1 = machine name, 2 = erase size in KiB, 3 = uImage file name
# $(BOARD) kernel uImage for $(1) in JFFS2-$(2)k partition
rm -rf '$(TMP_DIR)/$(1)_jffs2_uimage'
mkdir '$(TMP_DIR)/$(1)_jffs2_uimage'
cp '$(KDIR)/$(1)-uImage' '$(TMP_DIR)/$(1)_jffs2_uimage/$(3)'
$(STAGING_DIR_HOST)/bin/mkfs.jffs2 --compression-mode=none --pad --little-endian --squash -e $(2)KiB -o '$(KDIR)/$(1)-uImage.jffs2' -d '$(TMP_DIR)/$(1)_jffs2_uimage'
rm -rf '$(TMP_DIR)/$(1)_jffs2_uimage'
endef
define Image/Default/FileSizeCheck
# parameters: 1 = file path, 2 = maximum size in bytes
[ `stat -c %s '$(1)'` -le $(2) ] || { echo ' ERROR: $(1) too big (> $(2) bytes)'; exit 1; }
endef
###
### Image/Build
###
define Image/Build
### Dummy comment for indented calls of Image/Build with $(1)
## Prepare rootfs
$(call Image/Build/$(1),$(1))
## Netgear WNR854T
$(call Image/Build/Default,$(1),wnr854t,$(ERASE_SIZE_WNR854T),$(KERNEL_MTD_SIZE),.jffs2,NG_WNR854T)
## Linksys WRT350N v2
$(call Image/Build/Linksys/wrt350nv2,$(1),wrt350nv2,$(ERASE_SIZE_WRT350Nv2),$(KERNEL_MTD_SIZE),)
endef
define Image/Build/squashfs
$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
cp '$(KDIR)/root.squashfs' '$(BIN_DIR)/$(IMG_PREFIX)-root.squashfs'
endef
## generate defines for all JFFS2 block sizes
define Image/Build/jffs2/sub
$(eval define Image/Build/jffs2-$(1)
cp '$$(KDIR)/root.jffs2-$(1)' '$$(BIN_DIR)/$$(IMG_PREFIX)-root.jffs2-$(1)'
endef)
endef
$(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/Build/jffs2/sub,$(SZ)))
define Image/Build/Default
# parameters: 1 = rootfs type, 2 = machine name, 3 = erase size in KiB, 4 = kernel mtd size in KiB, 5 = kernel file suffix, 6 = header
ifeq ($(findstring jffs2-,$(1)),jffs2-) # JFFS2: build only image fitting to erase size
ifeq ($(1),jffs2-$(3)k)
$(call Image/Build/Default/sysupgrade,$(1),$(2),$(4),$(5))
$(call Image/Build/Default/factory,$(1),$(2),$(6))
endif
else
ifeq ($(1),ext4) # EXT4: ignore
# do nothing
else # do all other images
$(call Image/Build/Default/sysupgrade,$(1),$(2),$(4),$(5))
$(call Image/Build/Default/factory,$(1),$(2),$(6))
endif
endif
endef
define Image/Build/Default/sysupgrade
# parameters: 1 = rootfs type, 2 = machine name, 3 = pad size in KiB (kernel mtd size or erase size), 4 = kernel file suffix
# $(BOARD) $(1) sysupgrade image for $(2)
( \
dd if='$(KDIR)/$(2)-uImage$(4)' bs=$(3)k conv=sync; \
dd if='$(KDIR)/root.$(1)'; \
) > '$(BIN_DIR)/openwrt-$(2)-$(1)-sysupgrade.img'
endef
define Image/Build/Default/factory
# parameters: 1 = rootfs type, 2 = machine name, 3 = header
# $(BOARD) $(1) factory upgrade image for $(2)
'$(STAGING_DIR_HOST)/bin/add_header' $(3) '$(BIN_DIR)/openwrt-$(2)-$(1)-sysupgrade.img' '$(BIN_DIR)/openwrt-$(2)-$(1)-factory.img'
endef
##
## Image/Build/Linksys
##
define Image/Build/Linksys/wrt350nv2
# parameters: 1 = rootfs type, 2 = machine name, 3 = erase size in KiB, 4 = kernel mtd size in KiB, 5 = kernel file suffix
ifeq ($(findstring jffs2-,$(1)),jffs2-) # JFFS2: build only image fitting to erase size
ifeq ($(1),jffs2-$(3)k)
$(call Image/Build/Default/sysupgrade,$(1),$(2),$(4),$(5))
$(call Image/Build/Linksys/wrt350nv2-builder,$(1),$(2))
endif
else
ifeq ($(1),ext4) # EXT4: ignore
# do nothing
else # do all other images
$(call Image/Build/Default/sysupgrade,$(1),$(2),$(4),$(5))
$(call Image/Build/Linksys/wrt350nv2-builder,$(1),$(2))
endif
endif
endef
define Image/Build/Linksys/wrt350nv2-builder
# parameters: 1 = rootfs type, 2 = machine name
# $(BOARD) $(1) factory and recovery image for $(2) via wrt350nv2-builder
rm -rf '$(TMP_DIR)/$(2)_factory'
mkdir '$(TMP_DIR)/$(2)_factory'
# create parameter file
echo ':image 0 $(BIN_DIR)/openwrt-$(2)-$(1)-sysupgrade.img' > '$(TMP_DIR)/$(2)_factory/$(2).par'
[ ! -f '$(STAGING_DIR_HOST)/share/wrt350nv2-builder/u-boot.bin' ] || ( \
echo ':u-boot 0 $(STAGING_DIR_HOST)/share/wrt350nv2-builder/u-boot.bin' >> '$(TMP_DIR)/$(2)_factory/$(2).par'; \
)
echo '#version 0x2020' >> '$(TMP_DIR)/$(2)_factory/$(2).par'
# create bin file for recovery and factory image
( \
cd '$(TMP_DIR)/$(2)_factory'; \
'$(STAGING_DIR_HOST)/bin/wrt350nv2-builder' -b '$(TMP_DIR)/$(2)_factory/$(2).par'; \
)
# copy bin file as recovery image
$(CP) '$(TMP_DIR)/$(2)_factory/wrt350n.bin' '$(BIN_DIR)/openwrt-$(2)-$(1)-recovery.bin'
# create factory image for stock firmware update mechanism
( \
cd '$(TMP_DIR)/$(2)_factory'; \
zip 'wrt350n.zip' 'wrt350n.bin'; \
)
'$(STAGING_DIR_HOST)/bin/wrt350nv2-builder' -z '$(TMP_DIR)/$(2)_factory/wrt350n.zip' '$(BIN_DIR)/openwrt-$(2)-$(1)-factory.img'
rm -rf '$(TMP_DIR)/$(2)_factory'
endef
###
### Image/PreReq
###
## Dependency for WRT350N v2 factory image
$(eval $(call RequireCommand,zip, \
Please install zip. \
))
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