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#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
PKG_BUILD_DIR:=$(BUILD_DIR)/ar7loader
LOADADDR := 0x94020000
OUTPUT_FORMAT := elf32-tradlittlemips
CFLAGS := -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
-pipe -mlong-calls -fno-common \
-mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap \
-DLOADADDR=$(LOADADDR)
$(PKG_BUILD_DIR)/cksum.o: $(PKG_BUILD_DIR)/cksum.c
$(HOSTCC) -o $@ $<
$(PKG_BUILD_DIR)/ckmain.o: $(PKG_BUILD_DIR)/ckmain.c
$(HOSTCC) -o $@ $<
$(PKG_BUILD_DIR)/tichksum: $(PKG_BUILD_DIR)/ckmain.o $(PKG_BUILD_DIR)/cksum.o
$(HOSTCC) -o $@ $<
$(PKG_BUILD_DIR)/LzmaDecode.o: src/LzmaDecode.c
$(TARGET_CC) $(CFLAGS) -c -o $@ $<
$(PKG_BUILD_DIR)/loader.o: src/loader.c
$(TARGET_CC) $(CFLAGS) -c -o $@ $<
$(STAGING_DIR)/bin/srec2bin: src/srec2bin.c
$(HOSTCC) -o $@ $<
define Build/Compile
mkdir -p $(PKG_BUILD_DIR)
sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
-e 's/@@LOADADDR@@/$(LOADADDR)/' \
< src/zimage.script.in \
> $(PKG_BUILD_DIR)/zimage.script
sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
-e 's/@@LOADADDR@@/$(LOADADDR)/' \
< src/ld.script.in \
> $(PKG_BUILD_DIR)/ld.script
$(MAKE) $(PKG_BUILD_DIR)/loader.o $(PKG_BUILD_DIR)/LzmaDecode.o $(STAGING_DIR)/bin/srec2bin
endef
define Build/Clean
rm -rf $(PKG_BUILD_DIR)
endef
define Image/Prepare
cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
$(TARGET_CROSS)ld -T $(PKG_BUILD_DIR)/zimage.script -r -b binary $(KDIR)/vmlinux.lzma -o $(KDIR)/zimage.o
$(TARGET_CROSS)ld -static -G 0 --defsym kernel_entry=0x$${shell $(TARGET_CROSS)nm $(KDIR)/linux-*/vmlinux | grep kernel_entry | cut -d' ' -f1} -T $(PKG_BUILD_DIR)/ld.script \
$(PKG_BUILD_DIR)/loader.o \
$(PKG_BUILD_DIR)/LzmaDecode.o \
$(KDIR)/zimage.o \
-o $(KDIR)/loader
$(TARGET_CROSS)objcopy -O srec $(KDIR)/loader $(KDIR)/ram_zimage.sre
$(STAGING_DIR)/bin/srec2bin $(KDIR)/ram_zimage.sre $(KDIR)/vmlinux.bin
endef
define align/jffs2-64k
bs=65536 conv=sync
endef
define align/jffs2-128k
bs=131072 conv=sync
endef
define Image/Build/CyberTAN
(dd if=/dev/zero bs=16 count=1; cat $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin) | \
$(STAGING_DIR)/bin/addpattern -p $(3) -o $(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(4).bin
endef
define Image/Build/sErCoMm
cat sercomm/adam2.bin "$(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin" > "$(KDIR)/dgfw.tmp"
dd if=sercomm/$(2) of="$(KDIR)/dgfw.tmp" bs=$$$$((0x3e0000 - 80)) seek=1 conv=notrunc
$(STAGING_DIR)/bin/dgfirmware -f -w "$(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(3).img" "$(KDIR)/dgfw.tmp"
rm -f "$(KDIR)/dgfw.tmp"
endef
define Image/Build
dd if=$(KDIR)/vmlinux.bin $(call align/$(1)) > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin
cat $(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)/root.$(1) >> $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin
$(call Image/Build/CyberTAN,$(1),AG1B,AG1B,$(1))
$(call Image/Build/CyberTAN,$(1),WA21,WA21,$(1))
$(call Image/Build/CyberTAN,$(1),WA22,WA22,$(1))
$(call Image/Build/CyberTAN,$(1),WAG2,WAG2,$(1))
$(call Image/Build/CyberTAN,$(1),WA31,WA31 -b,$(1))
$(call Image/Build/CyberTAN,$(1),WA32,WA32 -b,$(1))
$(call Image/Build/sErCoMm,$(1),dg834,$(1))
$(call Image/Build/sErCoMm,$(1),jdr454wb,$(1))
endef
$(eval $(call BuildImage))
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