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CRIS v10: Update boot/compressed Kbuild makefile.

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- Remove old specific targets, use more generic ones instead.
- Use if_changed to avoid creating new images when no change.
- Use EXTRA_CFLAGS instead of CFLAGS.
This commit is contained in:
Jesper Nilsson 2007-11-30 16:10:30 +01:00
parent 87f5a7f703
commit 1333a69483
1 changed files with 19 additions and 29 deletions
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48
arch/cris/arch-v10/boot/compressed/Makefile
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@ -1,45 +1,35 @@
#
# create a compressed vmlinuz image from the binary vmlinux.bin file
# arch/cris/arch-v10/boot/compressed/Makefile
#
target = $(target_compressed_dir)
src = $(src_compressed_dir)
CC = gcc-cris -melf $(LINUXINCLUDE)
CFLAGS = -O2
EXTRA_CFLAGS = -O2
LD = ld-cris
LDFLAGS = -T $(obj)/decompress.ld
OBJECTS = $(obj)/head.o $(obj)/misc.o
OBJCOPY = objcopy-cris
OBJCOPYFLAGS = -O binary --remove-section=.bss
OBJECTS = $(target)/head.o $(target)/misc.o
# files to compress
SYSTEM = $(objtree)/vmlinux.bin
quiet_cmd_image = BUILD $@
cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@
all: $(target_compressed_dir)/vmlinuz
targets := vmlinux piggy.gz decompress.o decompress.bin
$(target)/decompress.bin: $(OBJECTS)
$(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
$(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
$(obj)/decompress.o: $(OBJECTS) FORCE
$(call if_changed,ld)
# Create vmlinuz image in top-level build directory
$(target_compressed_dir)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
@echo " COMPR vmlinux.bin --> vmlinuz"
@cat $(target)/decompress.bin piggy.img > $(target_compressed_dir)/vmlinuz
@rm -f piggy.img
$(obj)/decompress.bin: $(obj)/decompress.o FORCE
$(call if_changed,objcopy)
$(target)/head.o: $(src)/head.S
$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
$(obj)/head.o: $(obj)/head.S .config
@$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
$(target)/misc.o: $(src)/misc.c
$(CC) -D__KERNEL__ -c $< -o $@
$(obj)/misc.o: $(obj)/misc.c .config
@$(CC) -D__KERNEL__ -c $< -o $@
# gzip the kernel image
$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
$(call if_changed,image)
piggy.img: $(SYSTEM)
@cat $(SYSTEM) | gzip -f -9 > piggy.img
$(target):
mkdir -p $(target)
clean:
rm -f piggy.img $(objtree)/vmlinuz
$(obj)/piggy.gz: $(obj)/../Image FORCE
$(call if_changed,gzip)