CRIS v32: Update boot compressed Kbuild makefile.
- Remove old specific targets, use more generic ones instead. - Use if_changed to avoid creating new images when no change. - Use KBUILD_CFLAGS instead of CFLAGS.
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@ -1,41 +1,30 @@
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#
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# lx25/arch/cris/arch-v32/boot/compressed/Makefile
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# arch/cris/arch-v32/boot/compressed/Makefile
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#
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# create a compressed vmlinux image from the original vmlinux files and romfs
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#
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target = $(target_compressed_dir)
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src = $(src_compressed_dir)
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CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
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CFLAGS = -O2
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AFLAGS += -I $(srctree)/include/asm/mach/ -I $(srctree)/include/asm/arch
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KBUILD_CFLAGS += -O2 -I $(srctree)/include/asm/mach/ -I $(srctree)/include/asm/arch
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LD = gcc-cris -mlinux -march=v32 -nostdlib
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LDFLAGS = -T $(obj)/decompress.ld
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obj-y = head.o misc.o
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OBJECTS = $(obj)/head.o $(obj)/misc.o
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OBJCOPY = objcopy-cris
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OBJCOPYFLAGS = -O binary --remove-section=.bss
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OBJECTS = $(target)/head.o $(target)/misc.o
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# files to compress
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SYSTEM = $(objtree)/vmlinux.bin
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quiet_cmd_image = BUILD $@
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cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@
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all: vmlinuz
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targets := vmlinux piggy.gz decompress.o decompress.bin
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$(target)/decompress.bin: $(OBJECTS)
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$(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
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$(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
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$(obj)/decompress.o: $(OBJECTS) FORCE
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$(call if_changed,ld)
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$(objtree)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
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cat $(target)/decompress.bin piggy.img > $(objtree)/vmlinuz
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rm -f piggy.img
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cp $(objtree)/vmlinuz $(src)
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$(obj)/decompress.bin: $(obj)/decompress.o FORCE
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$(call if_changed,objcopy)
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$(target)/head.o: $(src)/head.S
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$(CC) -D__ASSEMBLY__ -c $< -o $@
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# gzip the kernel image
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piggy.img: $(SYSTEM)
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cat $(SYSTEM) | gzip -f -9 > piggy.img
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clean:
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rm -f piggy.img $(objtree)/vmlinuz vmlinuz.o decompress.o decompress.bin $(OBJECTS)
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$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
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$(call if_changed,image)
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$(obj)/piggy.gz: $(obj)/../Image FORCE
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$(call if_changed,gzip)
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