1# 2# Makefile for a ramdisk image 3# 4 5BIG_ENDIAN := $(shell echo -e "\#ifdef __XTENSA_EL__\nint little;\n\#else\nint big;\n\#endif" | $(CC) -E -|grep -c big) 6 7ifeq ($(BIG_ENDIAN),1) 8OBJCOPY_ARGS := -O elf32-xtensa-be 9else 10OBJCOPY_ARGS := -O elf32-xtensa-le 11endif 12 13obj-y = ramdisk.o 14 15RAMDISK_IMAGE = arch/$(ARCH)/boot/ramdisk/$(CONFIG_EMBEDDED_RAMDISK_IMAGE) 16 17arch/$(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