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_PAGE_OFFSET      ?= 0x80000000
  22 CONFIG_MEMORY_START     ?= 0x0c000000
  23 CONFIG_BOOT_LINK_OFFSET ?= 0x00800000
  24
  25 IMAGE_OFFSET    := $(shell printf "0x%08x" $$[$(CONFIG_PAGE_OFFSET)  + \
  26                                               $(CONFIG_MEMORY_START) + \
  27                                               $(CONFIG_BOOT_LINK_OFFSET)])
  28
  29 LIBGCC  := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
  30
  31 LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds
  32
  33
  34 $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
  35         $(call if_changed,ld)
  36         @:
  37
  38 $(obj)/vmlinux.bin: vmlinux FORCE
  39         $(call if_changed,objcopy)
  40
  41 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
  42         $(call if_changed,gzip)
  43
  44 LDFLAGS_piggy.o := -r --format binary --oformat elf32-sh-linux -T
  45 OBJCOPYFLAGS += -R .empty_zero_page
  46
  47 $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
  48         $(call if_changed,ld)