arch/cris/arch-v32/boot/compressed/Makefile

   1 #
   2 # lx25/arch/cris/arch-v32/boot/compressed/Makefile
   3 #
   4 # create a compressed vmlinux image from the original vmlinux files and romfs
   5 #
   6
   7 target = $(target_compressed_dir)
   8 src    = $(src_compressed_dir)
   9
  10 CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
  11 CFLAGS = -O2
  12 LD = gcc-cris -mlinux -march=v32 -nostdlib
  13 OBJCOPY = objcopy-cris
  14 OBJCOPYFLAGS = -O binary --remove-section=.bss
  15 OBJECTS = $(target)/head.o $(target)/misc.o
  16
  17 # files to compress
  18 SYSTEM = $(objtree)/vmlinux.bin
  19
  20 all: vmlinuz
  21
  22 $(target)/decompress.bin: $(OBJECTS)
  23         $(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
  24         $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
  25
  26 $(objtree)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
  27         cat $(target)/decompress.bin piggy.img > $(objtree)/vmlinuz
  28         rm -f piggy.img
  29         cp $(objtree)/vmlinuz $(src)
  30
  31 $(target)/head.o: $(src)/head.S
  32         $(CC) -D__ASSEMBLY__ -c $< -o $@
  33
  34 # gzip the kernel image
  35
  36 piggy.img: $(SYSTEM)
  37         cat $(SYSTEM) | gzip -f -9 > piggy.img
  38
  39 clean:
  40         rm -f piggy.img $(objtree)/vmlinuz vmlinuz.o decompress.o decompress.bin $(OBJECTS)
  41