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67 lines
2.2 KiB
Makefile
67 lines
2.2 KiB
Makefile
#
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# Copyright (C) 2006 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/image.mk
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LOADADDR = 0x81000000 # RAM start + 16M
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KERNEL_ENTRY = 0x80100000
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RAMSIZE = 0x00100000 # 1MB
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FLASH_KERNEL := 0xBFD00000
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FLASH_FS := 0xBE000000
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LOADER_MAKEOPTS= \
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KDIR=$(KDIR) \
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LOADADDR=$(LOADADDR) \
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KERNEL_ENTRY=$(KERNEL_ENTRY) \
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RAMSIZE=$(RAMSIZE)
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define Build/Clean
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$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader $(LOADER_MAKEOPTS) clean
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endef
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DROP_SECTIONS := .reginfo .mdebug .comment .note .pdr .options .MIPS.options
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OBJCOPY_SREC := $(TARGET_CROSS)objcopy -S -O srec $(addprefix --remove-section=,$(DROP_SECTIONS))
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OBJCOPY_BIN := $(TARGET_CROSS)objcopy -S -O binary $(addprefix --remove-section=,$(DROP_SECTIONS))
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define Image/Prepare
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cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
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# Build RAM image
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$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader \
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$(LOADER_MAKEOPTS) \
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clean compile
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$(OBJCOPY_SREC) $(KDIR)/loader.elf $(KDIR)/kernel.ram.srec
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# Build Flash image
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$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader \
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$(LOADER_MAKEOPTS) \
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IMAGE_COPY=1 \
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LOADER_ENTRY=$(FLASH_KERNEL) \
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LOADER_TYPE=_flash \
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clean compile
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$(OBJCOPY_SREC) $(KDIR)/loader_flash.elf $(KDIR)/kernel.flash.srec
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$(OBJCOPY_BIN) $(KDIR)/loader_flash.elf $(KDIR)/kernel.flash.bin
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endef
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define Image/Build/Initramfs
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$(OBJCOPY_SREC) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.elf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.srec
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endef
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define Image/Build
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$(TARGET_CROSS)objcopy -O srec -I binary --adjust-vma $(FLASH_FS) $(KDIR)/root.$(1) $(KDIR)/root.$(1).srec
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grep -v S7 $(KDIR)/root.$(1).srec > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
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grep -v S0 $(KDIR)/kernel.flash.srec >> $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
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$(CP) $(KDIR)/kernel.flash.bin $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.bin
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$(CP) $(KDIR)/root.$(1) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).fs
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ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
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$(call Image/Build/Initramfs)
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endif
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endef
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$(eval $(call BuildImage))
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