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   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 \
   8                    head_$(BITS).o misc_$(BITS).o piggy.o
   9
  10 OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/cache.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 #
  19 IMAGE_OFFSET    := $(shell /bin/bash -c 'printf "0x%08x" \
  20                      $$[$(CONFIG_PAGE_OFFSET)  + \
  21                         $(KERNEL_MEMORY) + \
  22                         $(CONFIG_BOOT_LINK_OFFSET)]')
  23
  24 LIBGCC  := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
  25
  26 ifeq ($(CONFIG_FUNCTION_TRACER),y)
  27 ORIG_CFLAGS := $(KBUILD_CFLAGS)
  28 KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
  29 endif
  30
  31 LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
  32                    -T $(obj)/../../kernel/vmlinux.lds
  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 OBJCOPYFLAGS += -R .empty_zero_page
  45
  46 $(obj)/piggy.o: $(obj)/piggy.S $(obj)/vmlinux.bin.gz FORCE
  47         $(call if_changed,as_o_S)