/usr/bin/mkimage也可以用来生成uImage.
也可以直接在Image（未压缩）的基础上加64Byte的头生成uImage, 如下修改。
linux-3.18.19/arch/arm/boot/Makefile:
@$(check_for_multiple_loadaddr)
$(call if_changed,uimage)
@$(kecho) ' Image $@ is ready'
@cp $@ $(KBUILD_OUTPUT)/
$(call if_changed,uimage)命令，参考 scripts/Makefile.lib中的cmd_uimage
341 # U-Boot mkimage
342 # ---------------------------------------------------------------------------
343
344 MKIMAGE := $(srctree)/scripts/mkuboot.sh
345
346 # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
347 # the number of overrides in arch makefiles
348 UIMAGE_ARCH ?= $(SRCARCH)
349 UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
350 UIMAGE_OPTS-y ?=
351 UIMAGE_TYPE ?= kernel
352 UIMAGE_LOADADDR ?= arch_must_set_this
353 UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
354 UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE) - OmniVision ASIC'
355 UIMAGE_IN ?= $<
356 UIMAGE_OUT ?= $@
357
358 quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
359 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
360 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
361 -T $(UIMAGE_TYPE) \
362 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
363 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
scripts/mkuboot.sh:
1 #!/bin/bash
2
3 #
4 # Build U-Boot image when `mkimage' tool is available.
5 #
6
7 MKIMAGE=$(type -path "${CROSS_COMPILE}mkimage")
8 if [ -z "${MKIMAGE}" ]; then
9 MKIMAGE=$(type -path mkimage)
10 if [ -z "${MKIMAGE}" ]; then
11 # Doesn't exist
12 echo '"mkimage" command not found - U-Boot images will not be built' >&2
13 exit 1;
14 fi
15 fi
16
17 # Call "mkimage" to create U-Boot image
18 ${MKIMAGE} "$@"
scripts/mkuboot.sh