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Makefile  |  2008-12-24  |  634 b   |  24 lines
  1. #
  2. # Makefile for a ramdisk image
  3. #
  4.  
  5. BIG_ENDIAN    := $(shell echo -e "\#ifdef __XTENSA_EL__\nint little;\n\#else\nint big;\n\#endif" | $(CC) -E -|grep -c big)
  6.  
  7. ifeq ($(BIG_ENDIAN),1)
  8. OBJCOPY_ARGS    := -O elf32-xtensa-be
  9. else
  10. OBJCOPY_ARGS    := -O elf32-xtensa-le
  11. endif
  12.  
  13. obj-y = ramdisk.o
  14.  
  15. RAMDISK_IMAGE = arch/$(ARCH)/boot/ramdisk/$(CONFIG_EMBEDDED_RAMDISK_IMAGE)
  16.  
  17. arch/$(ARCH)/boot/ramdisk/ramdisk.o:
  18.     $(Q)echo -e "dummy:" | $(AS) -o $@;
  19.     $(Q)$(OBJCOPY) $(OBJCOPY_ARGS)                        \
  20.         --add-section .initrd=$(RAMDISK_IMAGE)                \
  21.         --set-section-flags .initrd=contents,alloc,load,load,data   \
  22.         arch/$(ARCH)/boot/ramdisk/ramdisk.o $@
  23.  
  24.