arch/sh/boot/compressed/Makefile

   1 #
   2 # linux/arch/sh/boot/compressed/Makefile
   3 #
   4 # create a compressed vmlinux image from the original vmlinux
   5 #
   6
   7 targets         := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
   8 EXTRA_AFLAGS    := -traditional
   9
  10 OBJECTS = $(obj)/head.o $(obj)/misc.o
  11
  12 ifdef CONFIG_SH_STANDARD_BIOS
  13 OBJECTS += $(obj)/../../kernel/sh_bios.o
  14 endif
  15
  16 #
  17 # IMAGE_OFFSET is the load offset of the compression loader
  18 # Assign dummy values if these 2 variables are not defined,
  19 # in order to suppress error message.
  20 #
  21 CONFIG_MEMORY_START     ?= 0x0c000000
  22 CONFIG_BOOT_LINK_OFFSET ?= 0x00800000
  23 IMAGE_OFFSET := $(shell printf "0x%8x" $$[0x80000000+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)])
  24
  25 LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds
  26
  27 $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
  28         $(call if_changed,ld)
  29         @:
  30
  31 $(obj)/vmlinux.bin: vmlinux FORCE
  32         $(call if_changed,objcopy)
  33
  34 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
  35         $(call if_changed,gzip)
  36
  37 LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T
  38 OBJCOPYFLAGS += -R .empty_zero_page
  39
  40 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
  41         $(call if_changed,ld)