arch/cris/arch-v10/boot/compressed/Makefile

   1 #
   2 # create a compressed vmlinuz image from the binary vmlinux.bin file
   3 #
   4 target = $(target_compressed_dir)
   5 src    = $(src_compressed_dir)
   6
   7 CC = gcc-cris -melf $(LINUXINCLUDE)
   8 CFLAGS = -O2
   9 LD = ld-cris
  10 OBJCOPY = objcopy-cris
  11 OBJCOPYFLAGS = -O binary --remove-section=.bss
  12 OBJECTS = $(target)/head.o $(target)/misc.o
  13
  14 # files to compress
  15 SYSTEM = $(objtree)/vmlinux.bin
  16
  17 all: $(target_compressed_dir)/vmlinuz
  18
  19 $(target)/decompress.bin: $(OBJECTS)
  20         $(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
  21         $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
  22
  23 # Create vmlinuz image in top-level build directory
  24 $(target_compressed_dir)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
  25         @echo "  COMPR   vmlinux.bin --> vmlinuz"
  26         @cat $(target)/decompress.bin piggy.img > $(target_compressed_dir)/vmlinuz
  27         @rm -f piggy.img
  28
  29 $(target)/head.o: $(src)/head.S
  30         $(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
  31
  32 $(target)/misc.o: $(src)/misc.c
  33         $(CC) -D__KERNEL__ -c $< -o $@
  34
  35 # gzip the kernel image
  36
  37 piggy.img: $(SYSTEM)
  38         @cat $(SYSTEM) | gzip -f -9 > piggy.img
  39
  40 $(target):
  41         mkdir -p $(target)
  42
  43 clean:
  44         rm -f piggy.img $(objtree)/vmlinuz
  45