84 lines
2.8 KiB
Makefile
84 lines
2.8 KiB
Makefile
include $(TOPDIR)/rules.mk
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KDIR:=$(BUILD_DIR)/linux-$(KERNEL)-ar7
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PKG_BUILD_DIR:=$(BUILD_DIR)/ar7loader
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LOADADDR := 0x94020000
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KERNEL_ENTRY := 0x${shell nm $(KDIR)/linux-$(KERNEL)*/vmlinux | grep kernel_entry | cut -d' ' -f1}
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OUTPUT_FORMAT := elf32-tradlittlemips
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CFLAGS := -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
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-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
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-pipe -mlong-calls -fno-common \
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-mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap \
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-DLOADADDR=$(LOADADDR)
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$(PKG_BUILD_DIR):
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mkdir -p $(PKG_BUILD_DIR)
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$(PKG_BUILD_DIR)/zimage.script: src/zimage.script.in
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sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
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-e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@
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$(PKG_BUILD_DIR)/ld.script: src/ld.script.in
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sed -e 's/@@OUTPUT_FORMAT@@/$(OUTPUT_FORMAT)/' \
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-e 's/@@LOADADDR@@/$(LOADADDR)/' <$< >$@
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$(PKG_BUILD_DIR)/LzmaDecode.o: src/LzmaDecode.c
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$(TARGET_CC) $(CFLAGS) -c -o $@ $<
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$(PKG_BUILD_DIR)/loader.o: src/loader.c
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$(TARGET_CC) $(CFLAGS) -c -o $@ $<
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$(PKG_BUILD_DIR)/srec2bin: src/srec2bin.c
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$(HOSTCC) -o $@ $<
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$(KDIR)/vmlinux.gz: $(KDIR)/vmlinux
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gzip -c -vf9 < $< > $@
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$(KDIR)/vmlinux.lzma: $(KDIR)/vmlinux
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cat $^ | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $@ || (rm -f $@ && false)
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$(BIN_DIR)/openwrt-ar7-zimage.bin: $(KDIR)/vmlinux.lzma compile
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$(TARGET_CROSS)ld -T $(PKG_BUILD_DIR)/zimage.script -r -b binary $< -o $(KDIR)/zimage.o
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$(TARGET_CROSS)ld -static -G 0 --defsym kernel_entry=$(KERNEL_ENTRY) -T $(PKG_BUILD_DIR)/ld.script \
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$(PKG_BUILD_DIR)/loader.o \
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$(PKG_BUILD_DIR)/LzmaDecode.o \
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$(KDIR)/zimage.o \
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-o $(KDIR)/loader
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$(TARGET_CROSS)objcopy -O srec $(KDIR)/loader $(KDIR)/ram_zimage.sre
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$(PKG_BUILD_DIR)/srec2bin $(KDIR)/ram_zimage.sre $@
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ifeq ($(FS),jffs2-8MB)
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ALIGN:=bs=131072 conv=sync
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endif
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ifeq ($(FS),jffs2-4MB)
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ALIGN:=bs=65536 conv=sync
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endif
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$(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin: $(BIN_DIR)/openwrt-ar7-zimage.bin
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dd if=$< $(ALIGN) > $@
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cat $(BUILD_DIR)/linux-$(KERNEL)-ar7/root.$(FS) >> $@
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define pattern_template
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$(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS)-$(1).bin: $(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin
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(dd if=/dev/zero bs=16 count=1; cat $(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin) | \
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$(STAGING_DIR)/bin/addpattern -p $(1) -o $(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS)-$(1).bin
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install: $(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS)-$(1).bin
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endef
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$(eval $(call pattern_template,WA22))
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$(eval $(call pattern_template,WAG2))
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$(eval $(call pattern_template,WA21))
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clean:
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rm -rf $(PKG_BUILD_DIR)
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rm -f $(BIN_DIR)/openwrt-ar7*
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prepare: $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)/zimage.script $(PKG_BUILD_DIR)/ld.script
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compile: prepare $(PKG_BUILD_DIR)/loader.o $(PKG_BUILD_DIR)/LzmaDecode.o $(PKG_BUILD_DIR)/srec2bin
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install: $(BIN_DIR)/openwrt-ar7-zimage.bin $(BIN_DIR)/openwrt-ar7-$(KERNEL)-$(FS).bin
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