arm32上uImage镜像的生成过程
arch/arm/boot/.Image.cmd :
cmd_arch/arm/boot/Image := arm-himix200-linux-objcopy -O binary -R .comment -S vmlinux arch/arm/boot/Image
objcopy选项：
-
-O : 输出目标文件格式，这里是二进制格式
-
-R : 移除目标段，这里移除目标的.comment端
-
-S : --strip-all
这里就是用arm-himix200-linux-objcopy工具,将源文件vmlinux生成目标二进制文件arch/arm/boot/Image，中间移除.comment段，并strip all将符合信息去除。
arch/arm/boot/.zImage.cmd :
cmd_arch/arm/boot/zImage := arm-himix200-linux-objcopy -O binary -R .comment -S arch/arm/boot/compressed/vmlinux arch/arm/boot/zImage
zImage的来源与Image有差异，规则无差异。
arch/arm/boot/.uImage.cmd :
cmd_arch/arm/boot/uImage :&#
