target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/Makefile

   1 #
   2 # linux/arch/mips/boot/compressed/Makefile
   3 #
   4 # create a compressed zImage from the original vmlinux
   5 #
   6
   7 targets         := zImage vmlinuz vmlinux.bin.gz head.o misc.o piggy.o dummy.o
   8
   9 OBJS            := $(obj)/head.o $(obj)/misc.o
  10
  11 LD_ARGS         := -T $(obj)/ld.script -Ttext 0x80600000 -Bstatic
  12 OBJCOPY_ARGS    := -O elf32-tradlittlemips
  13
  14 ENTRY           := $(obj)/../tools/entry
  15 FILESIZE        := $(obj)/../tools/filesize
  16
  17 drop-sections   = .reginfo .mdebug .comment .note .pdr .options .MIPS.options
  18 strip-flags     = $(addprefix --remove-section=,$(drop-sections))
  19
  20
  21 $(obj)/vmlinux.bin.gz: vmlinux
  22         rm -f $(obj)/vmlinux.bin.gz
  23         $(OBJCOPY) -O binary $(strip-flags) vmlinux $(obj)/vmlinux.bin
  24         gzip -v9f $(obj)/vmlinux.bin
  25
  26 $(obj)/head.o: $(obj)/head.S $(obj)/vmlinux.bin.gz vmlinux
  27         $(CC) $(KBUILD_AFLAGS) \
  28         -DIMAGESIZE=$(shell sh $(FILESIZE) $(obj)/vmlinux.bin.gz) \
  29         -DKERNEL_ENTRY=$(shell sh $(ENTRY) $(NM) vmlinux ) \
  30         -DLOADADDR=$(loadaddr) \
  31         -c -o $(obj)/head.o $<
  32
  33 $(obj)/vmlinuz: $(OBJS) $(obj)/ld.script $(obj)/vmlinux.bin.gz $(obj)/dummy.o
  34         $(OBJCOPY) \
  35                 --add-section=.image=$(obj)/vmlinux.bin.gz \
  36                 --set-section-flags=.image=contents,alloc,load,readonly,data \
  37                 $(obj)/dummy.o $(obj)/piggy.o
  38         $(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/piggy.o
  39         $(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap
  40
  41 zImage: $(obj)/vmlinuz
  42         $(OBJCOPY) -O binary $(obj)/vmlinuz $(obj)/zImage