为 PPC440GX (taishan config) 编译最新的 linus-git 镜像时出现以下错误：
git describe
v3.10-rc5-219-ga2648eb
Issuing "make V=1 ARCH=powerpc CROSS_COMPILE=ppc_4xx- oldconfig" where
the config file ".config" is from powerpc/configs/44x gives:
make -f scripts/Makefile.build obj=net/wireless
make -f scripts/Makefile.build obj=lib
make -f scripts/Makefile.build obj=lib/zlib_inflate
make ARCH=ppc64 -f scripts/Makefile.build obj=arch/powerpc/boot
arch/powerpc/boot/uImage
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
mkdir -p arch/powerpc/boot/
ppc_4xx-gcc -m32 -Wp,-MD,arch/powerpc/boot/.treeboot-currituck.o.d
-Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing
-Os -msoft-float -pipe -fomit-frame-pointer -fno-builtin -fPIC
-nostdinc -isystem
/opt/eldk-4.2/usr/bin/../lib/gcc/powerpc-linux/4.2.2/include
-fno-stack-protector -Iarch/powerpc/boot
-I/media/d4fdcf1c-c7f1-419a-8418-3d0e7b1ad883/linux_latest/arch/powerpc/boot
-mcpu=405 -c -o arch/powerpc/boot/treeboot-currituck.o
arch/powerpc/boot/treeboot-currituck.c
{standard input}: Assembler messages:
{standard input}:82: Error: Unrecognized opcode: `mfdcrx'
make[1]: *** [arch/powerpc/boot/treeboot-currituck.o] Error 1
make: *** [uImage] Error 2
问题：
- 为什么“mkdir -p arch/powerpc/boot/”重复了这么多次？
- 错误“mfdcrx”的原因是什么？
知道错误的原因是什么吗？