在成功重装了两次系统之后之前的移植工作终于还是被我弄丢了，无奈只好一切重头再来了。
    首先下载u-boot源码，下载地址为ftp://ftp.denx.de/pub/u-boot/，这次将要移植的版本为2010-12。
    制作交叉工具链（Cross-Tool），还是使用crosstool-NG来制作编译工具，下载地址：http://ymorin.is-a-geek.org/download/crosstool-ng 。版本为1.9.3，这个工具的使用方法可以在文档或是http://ymorin.is-a-geek.org/projects/crosstool中找到，由于之前在弄crosstool的时候遇到一些问题，所以这次也把它的安装过程和使用方法记录下来。
    Features of This Tool

• kernel-like menuconfig configuration interface
  • widespread, well-known interface
  • easy, yet powerful configuration
• growing number of supported architectures
  • see the status table for the current list
• support for alternative components in the toolchain
  • uClibc-, glibc- or eglibc-based toolchain supported right now!
  • others easy to implement
• different target OS supported
  • Linux
  • bare metal
• patch repository for those versions needing patching
  • patches for many versions of the toolchain components
  • support for custom (understand local) patch repository
• different threading models
  • NPTL
  • linuxthreads
• support for both soft- and hard-float toolchains
• debug facilities
  • native and cross gdb, gdbserver
  • debugging libraries: dmalloc, duma
  • restart a build at any step
• sample configurations repository usable as starting point for your own toolchain
  • see the status table for the current list

    安装crosstool-NG
    配置安装路径./configure --prefix=/opt/programs/crosstool-ng-1.9.3，会提示缺少必要的工具，安装就行了。
    sudo yum install lzma，接下来make, make install，可以检查以下是否安装成功
        PREFIX='/opt/programs/crosstool-ng-1.9.3'
        BINDIR='/opt/programs/crosstool-ng-1.9.3/bin'
        LIBDIR='/opt/programs/crosstool-ng-1.9.3/lib/ct-ng-1.9.3'
        DOCDIR='/opt/programs/crosstool-ng-1.9.3/share/doc/ct-ng-1.9.3'
        MANDIR='/opt/programs/crosstool-ng-1.9.3/share/man'
    然后测试，将其添加到PATH环境变量中，运行ct-ng help, ct-ng menuconfig, ct-ng build。
    使用ct-ng制作工具链
    ct-ng list-samples，列出已经通过实践检验的示例配置脚本。
    这里使用arm-unknown-linux-uclibcgnueabi的配置方案预先配置一下，然后再调整。
    Options:

• OS：linux-2.6.33.7
• uClibc-0.9.30.2
• linuxthread

    调整完成之后可以在工作目录下查看配置结果.config文件，然后确认无误就可以build了，哦，对了，如果不能正常下载需要的tar文件时最好自己手动下载，然后再build，build时会出现错误提示'Don't set LD_LIBRARY_PATH. It screws up the build.'，按照提示unset LD_LIBRARY_PATH，这时程序自动创建了目录结构，接下来先停下来，手动下载所需要的安装文件，需要在配置时选择forbid download：

• linux-2.6.33.7    http://www.kernel.org/pub/linux/kernel/v2.6/
• gmp-4.3.2    http://ftp.gnu.org/gnu/gmp/
• mpfr-2.4.2    http://ftp.gnu.org/gnu/mpfr/
• ppl-0.10.2    http://www.cs.unipr.it/ppl/Download/ftp/releases/0.10.2/
• cloog-ppl-0.15.9    http://gcc-uk.internet.bs/infrastructure/
• libelf-0.8.13    http://www.mr511.de/software/libelf-0.8.13.tar.gz
• binutils-2.19.1    http://ftp.gnu.org/gnu/binutils/
• gcc-4.4.3     http://ftp.gnu.org/gnu/gcc/gcc-4.4.3/
• uClibc-0.9.30.2    http://www.uclibc.org/downloads/?ref=darwinports.com
• dmalloc-5.5.2    http://dmalloc.com/releases/
• duma_2_5_15    http://sourceforge.net/projects/duma/files/duma/2.5.15/duma_2_5_15.tar.gz/download
• gdb-7.1    http://ftp.gnu.org/gnu/gdb/
• ncurses-5.7    http://ftp.gnu.org/pub/gnu/ncurses/
• expat-2.0.1    http://sourceforge.net/projects/expat/files/expat/2.0.1/expat-2.0.1.tar.gz/download
• ltrace-0.5.3    ftp://ftp.debian.org/debian/pool/main/l/ltrace/
• strace-4.5.19    http://sourceforge.net/projects/strace/files/strace/4.5.19/strace-4.5.19.tar.bz2/download

    当所有的安装文件都下载、解压、patch之后，还差一个uClibc的配置文件'[ERROR]    You did not provide a uClibc config file!'，我们默认的配置文件在.config中的定义是"CT_LIBC_UCLIBC_CONFIG_FILE="${CT_LIB_DIR}/samples/${CT_TARGET}/${CT_LIBC}-${CT_LIBC_VERSION}.config"，但是经过修改之后的CT_TARGET已经不存在了，所以直接把‘uClibc-0.9.30.2.config‘文件复制出来，放到刚才的工作目录的target下，然后再修改.config中的CT_LIBC_UCLIBC_CONFIG_FILE内容。

    虽然一切都准备好了，但是在编译器生成的最后阶段（Installing final compiler）还是出问题了，所以只好把gcc的版本换成4.3.2再试一次，不过这次没有手动下载所需的安装文件，直接通过为wget设置代理来自动通过ct-ng下载。为wget设置代理也很简单，直接编辑/etc/wgetrc文件，加上这两行：

http_proxy = http://58.248.245.225:80/

use_proxy = on

就行了，build的时候还是死掉了，原因是.../scripts/functions文件中的代码

# OK, just look if we have them...
_aria2c=$(CT_Which aria2c)
_wget=$(CT_Which wget)
#_curl=$(CT_Which curl)


# Wrapper function to call one of, in order of preference:
#   aria2
#   curl
#   wget
# Usage: CT_DoGetFile <URL>
CT_DoGetFile() {
#CT_DoLog EXTRA "1 ${_aria2c}"
#CT_DoLog EXTRA "2 ${_curl}"
#CT_DoLog EXTRA "3 ${_wget}"
    if   [ -n "${_aria2c}" -a ${CT_DOWNLOAD_MAX_CHUNKS} -gt 1 ]; then
        CT_DoGetFileAria2 "$1"
    elif [ -n "${_curl}" ]; then
        CT_DoGetFileCurl "$1"
    elif [ -n "${_wget}" ]; then
        CT_DoGetFileWget "$1"
    else
        CT_Abort "Could find neither wget nor curl"
    fi
}

实际上CT_DoGetFile函数调用的是CT_DoGetFileCurl而非刚才设置的wget，把上面的那个_curl=$(CT_Which curl)注释掉就行了。

程序脚本中安装文件的下载地址有时不可用，需要修改以下。

下载完成之后重新开始安装，最后成功！

.config的文件内容如下：

#
# Automatically generated make config: don't edit
# crosstool-NG version: 1.9.3
# Fri Feb 18 19:16:42 2011
#
# CT_BACKEND is not set
CT_MODULES=y

#
# Paths and misc options
#

#
# crosstool-NG behavior
#
# CT_OBSOLETE is not set
CT_EXPERIMENTAL=y
# CT_DEBUG_CT is not set

#
# Paths
#
CT_LOCAL_TARBALLS_DIR="${HOME}/src"
CT_SAVE_TARBALLS=y
CT_WORK_DIR="${CT_TOP_DIR}/targets"
CT_PREFIX_DIR="${HOME}/x-tool-2/${CT_TARGET}"
CT_INSTALL_DIR="${CT_PREFIX_DIR}"
CT_REMOVE_DOCS=y
CT_INSTALL_DIR_RO=y
CT_STRIP_ALL_TOOLCHAIN_EXECUTABLES=y

#
# Downloading
#
# CT_FORBID_DOWNLOAD is not set
# CT_FORCE_DOWNLOAD is not set
CT_USE_MIRROR=y
# CT_PREFER_MIRROR is not set
CT_MIRROR_BASE_URL="http://ymorin.is-a-geek.org/mirrors/"
CT_CONNECT_TIMEOUT=10
CT_DOWNLOAD_MAX_CHUNKS=1
# CT_ONLY_DOWNLOAD is not set

#
# Extracting
#
# CT_FORCE_EXTRACT is not set
CT_OVERIDE_CONFIG_GUESS_SUB=y
# CT_ONLY_EXTRACT is not set
CT_PATCH_BUNDLED=y
# CT_PATCH_LOCAL is not set
# CT_PATCH_BUNDLED_LOCAL is not set
# CT_PATCH_LOCAL_BUNDLED is not set
# CT_PATCH_BUNDLED_FALLBACK_LOCAL is not set
# CT_PATCH_LOCAL_FALLBACK_BUNDLED is not set
# CT_PATCH_NONE is not set
CT_PATCH_ORDER="bundled"
# CT_PATCH_SINGLE is not set
# CT_PATCH_USE_LOCAL is not set

#
# Build behavior
#
CT_PARALLEL_JOBS=1
CT_LOAD=0
CT_USE_PIPES=y
# CT_CONFIG_SHELL_SH is not set
# CT_CONFIG_SHELL_ASH is not set
CT_CONFIG_SHELL_BASH=y
# CT_CONFIG_SHELL_CUSTOM is not set
CT_CONFIG_SHELL="bash"

#
# Logging
#
# CT_LOG_ERROR is not set
# CT_LOG_WARN is not set
# CT_LOG_INFO is not set
CT_LOG_EXTRA=y
# CT_LOG_ALL is not set
# CT_LOG_DEBUG is not set
CT_LOG_LEVEL_MAX="EXTRA"
# CT_LOG_SEE_TOOLS_WARN is not set
CT_LOG_PROGRESS_BAR=y
CT_LOG_TO_FILE=y
CT_LOG_FILE_COMPRESS=y

#
# Target options
#
CT_ARCH="arm"
CT_ARCH_SUPPORTS_BOTH_MMU=y
CT_ARCH_SUPPORTS_BOTH_ENDIAN=y
CT_ARCH_SUPPORTS_32=y
# CT_ARCH_SUPPORTS_64 is not set
CT_ARCH_SUPPORT_ARCH=y
# CT_ARCH_SUPPORT_ABI is not set
CT_ARCH_SUPPORT_CPU=y
CT_ARCH_SUPPORT_TUNE=y
CT_ARCH_SUPPORT_FPU=y
CT_ARCH_DEFAULT_HAS_MMU=y
# CT_ARCH_DEFAULT_BE is not set
CT_ARCH_DEFAULT_LE=y
CT_ARCH_DEFAULT_32=y
# CT_ARCH_DEFAULT_64 is not set
CT_ARCH_ARCH="armv4t"
CT_ARCH_CPU=""
CT_ARCH_TUNE=""
CT_ARCH_FPU=""
# CT_ARCH_BE is not set
CT_ARCH_LE=y
CT_ARCH_32=y
# CT_ARCH_64 is not set
CT_ARCH_BITNESS=32
# CT_ARCH_FLOAT_HW is not set
CT_ARCH_FLOAT_SW=y
CT_TARGET_CFLAGS=""
CT_TARGET_LDFLAGS=""

#
# General target options
#
CT_ARCH_arm=y
# CT_ARCH_x86 is not set
# CT_ARCH_sh is not set
# CT_ARCH_avr32 is not set
# CT_ARCH_ia64 is not set
# CT_ARCH_mips is not set
# CT_ARCH_powerpc is not set
# CT_ARCH_s390 is not set
# CT_ARCH_m68k is not set
# CT_ARCH_alpha is not set
# CT_ARCH_blackfin is not set
CT_ARCH_arm_AVAILABLE=y
CT_ARCH_x86_AVAILABLE=y
CT_ARCH_sh_AVAILABLE=y
CT_ARCH_avr32_AVAILABLE=y
CT_ARCH_ia64_AVAILABLE=y
CT_ARCH_mips_AVAILABLE=y
CT_ARCH_powerpc_AVAILABLE=y
CT_ARCH_s390_AVAILABLE=y
CT_ARCH_m68k_AVAILABLE=y
CT_ARCH_alpha_AVAILABLE=y
CT_ARCH_blackfin_AVAILABLE=y
CT_ARCH_USE_MMU=y

#
# arm other options
#
CT_ARCH_ARM_MODE="arm"
CT_ARCH_ARM_MODE_ARM=y
# CT_ARCH_ARM_MODE_THUMB is not set
# CT_ARCH_ARM_INTERWORKING is not set
CT_ARCH_ARM_EABI=y

#
# Target optimisations
#

#
# Toolchain options
#

#
# General toolchain options
#
CT_USE_SYSROOT=y
CT_SYSROOT_DIR_PREFIX=""

#
# Tuple completion and aliasing
#
CT_TARGET_VENDOR="cool"
CT_TARGET_ALIAS_SED_EXPR=""
CT_TARGET_ALIAS="arm-cool-uClibc"

#
# Toolchain type
#
# CT_NATIVE is not set
CT_CROSS=y
# CT_CROSS_NATIVE is not set
# CT_CANADIAN is not set
CT_TOOLCHAIN_TYPE="cross"

#
# Build system
#
CT_BUILD=""
CT_BUILD_PREFIX=""
CT_BUILD_SUFFIX=""

#
# Operating System
#
# CT_BARE_METAL is not set
# CT_MINGW32 is not set
CT_KERNEL_SUPPORTS_SHARED_LIBS=y
CT_KERNEL="linux"
CT_KERNEL_VERSION="2.6.33.7"
# CT_KERNEL_mingw32 is not set
# CT_KERNEL_bare_metal is not set
CT_KERNEL_linux=y
CT_KERNEL_mingw32_AVAILABLE=y
CT_KERNEL_bare_metal_AVAILABLE=y
CT_KERNEL_linux_AVAILABLE=y
CT_KERNEL_LINUX_INSTALL=y
# CT_KERNEL_V_2_6_36 is not set
# CT_KERNEL_V_2_6_35_8 is not set
# CT_KERNEL_V_2_6_34_7 is not set
CT_KERNEL_V_2_6_33_7=y
# CT_KERNEL_V_2_6_32_25 is not set
# CT_KERNEL_V_2_6_31_14 is not set
# CT_KERNEL_V_2_6_27_55 is not set
# CT_KERNEL_LINUX_CUSTOM is not set
CT_KERNEL_LINUX_VERBOSITY_0=y
# CT_KERNEL_LINUX_VERBOSITY_1 is not set
# CT_KERNEL_LINUX_VERBOSITY_2 is not set
CT_KERNEL_LINUX_VERBOSE_LEVEL=0
CT_KERNEL_LINUX_INSTALL_CHECK=y
# CT_KERNEL_LINUX_USE_CUSTOM_HEADERS is not set

#
# Common kernel options
#
CT_SHARED_LIBS=y

#
# Binary utilities
#
CT_ARCH_BINFMT_ELF=y
# CT_ARCH_BINFMT_FLAT is not set
# CT_ARCH_BINFMT_FDPIC is not set

#
# GNU binutils
#
# CT_BINUTILS_V_2_20_1 is not set
# CT_BINUTILS_V_2_20 is not set
CT_BINUTILS_V_2_19_1=y
# CT_BINUTILS_V_2_19 is not set
# CT_BINUTILS_V_2_18 is not set
# CT_BINUTILS_V_2_17 is not set
# CT_BINUTILS_V_2_16_1 is not set
CT_BINUTILS_VERSION="2.19.1"
CT_BINUTILS_EXTRA_CONFIG=""
CT_BINUTILS_FOR_TARGET=y
CT_BINUTILS_FOR_TARGET_IBERTY=y
CT_BINUTILS_FOR_TARGET_BFD=y

#
# C compiler
#
CT_CC="gcc"
CT_CC_VERSION="4.3.2"
CT_CC_gcc=y
# CT_CC_V_4_5_1 is not set
# CT_CC_V_4_5_0 is not set
# CT_CC_V_4_4_5 is not set
# CT_CC_V_4_4_4 is not set
# CT_CC_V_4_4_3 is not set
# CT_CC_V_4_4_2 is not set
# CT_CC_V_4_4_1 is not set
# CT_CC_V_4_4_0 is not set
# CT_CC_V_4_3_5 is not set
# CT_CC_V_4_3_4 is not set
# CT_CC_V_4_3_3 is not set
CT_CC_V_4_3_2=y
# CT_CC_V_4_3_1 is not set
# CT_CC_V_4_2_4 is not set
# CT_CC_V_4_2_3 is not set
# CT_CC_V_4_2_2 is not set
# CT_CC_V_4_2_1 is not set
# CT_CC_V_4_2_0 is not set
# CT_CC_V_4_1_2 is not set
# CT_CC_V_4_0_4 is not set
# CT_CC_V_3_4_6 is not set
CT_CC_GCC_4_2_or_later=y
CT_CC_GCC_4_3_or_later=y
# CT_CC_GCC_4_4_or_later is not set
# CT_CC_GCC_4_5_or_later is not set
# CT_CC_GCC_HAS_GRAPHITE is not set
# CT_CC_GCC_HAS_LTO is not set
CT_CC_GCC_USE_GMP_MPFR=y
# CT_CC_GCC_USE_PPL_CLOOG is not set
# CT_CC_GCC_USE_MPC is not set
# CT_CC_GCC_USE_LIBELF is not set
CT_CC_PKGVERSION="crosstool-NG-${CT_VERSION}"
CT_CC_BUGURL=""
CT_CC_ENABLE_CXX_FLAGS=""
CT_CC_CORE_EXTRA_CONFIG=""
CT_CC_EXTRA_CONFIG=""
CT_CC_SUPPORT_CXX=y
CT_CC_SUPPORT_FORTRAN=y
CT_CC_SUPPORT_JAVA=y
CT_CC_SUPPORT_ADA=y
CT_CC_SUPPORT_OBJC=y
CT_CC_SUPPORT_OBJCXX=y

#
# Additional supported languages:
#
CT_CC_LANG_CXX=y
# CT_CC_LANG_FORTRAN is not set
# CT_CC_LANG_JAVA is not set
# CT_CC_LANG_ADA is not set
# CT_CC_LANG_OBJC is not set
# CT_CC_LANG_OBJCXX is not set
CT_CC_LANG_OTHERS=""

#
# gcc other options
#
CT_CC_GCC_ENABLE_TARGET_OPTSPACE=y
# CT_CC_GCC_LIBMUDFLAP is not set
# CT_CC_GCC_LIBGOMP is not set
# CT_CC_GCC_LIBSSP is not set

#
# Misc. obscure options.
#
CT_CC_CXA_ATEXIT=y
# CT_CC_GCC_DISABLE_PCH is not set
CT_CC_GCC_SJLJ_EXCEPTIONS=m
CT_CC_GCC_LDBL_128=m

#
# C-library
#
CT_LIBC="uClibc"
CT_LIBC_VERSION="0.9.30.2"
# CT_LIBC_mingw is not set
# CT_LIBC_glibc is not set
# CT_LIBC_newlib is not set
CT_LIBC_uClibc=y
# CT_LIBC_none is not set
# CT_LIBC_eglibc is not set
CT_LIBC_mingw_AVAILABLE=y
CT_LIBC_glibc_AVAILABLE=y
CT_LIBC_newlib_AVAILABLE=y
CT_LIBC_uClibc_AVAILABLE=y
# CT_LIBC_UCLIBC_V_0_9_31 is not set
# CT_LIBC_UCLIBC_V_0_9_30_3 is not set
CT_LIBC_UCLIBC_V_0_9_30_2=y
# CT_LIBC_V_0_9_30_1 is not set
# CT_LIBC_V_0_9_30 is not set
# CT_LIBC_V_0_9_29 is not set
# CT_LIBC_V_0_9_28_3 is not set
# CT_LIBC_V_snapshot is not set
# CT_LIBC_V_specific_date is not set
CT_LIBC_UCLIBC_0_9_30_or_later=y
CT_LIBC_UCLIBC_PARALLEL=y
CT_LIBC_UCLIBC_VERBOSITY_0=y
# CT_LIBC_UCLIBC_VERBOSITY_1 is not set
# CT_LIBC_UCLIBC_VERBOSITY_2 is not set
CT_LIBC_UCLIBC_VERBOSITY=""
CT_LIBC_UCLIBC_DEBUG_LEVEL_0=y
# CT_LIBC_UCLIBC_DEBUG_LEVEL_1 is not set
# CT_LIBC_UCLIBC_DEBUG_LEVEL_2 is not set
CT_LIBC_UCLIBC_DEBUG_LEVEL=0
CT_LIBC_UCLIBC_CONFIG_FILE="${HOME}/scratch/toolchain-build/${CT_LIBC}-${CT_LIBC_VERSION}.config"
CT_LIBC_none_AVAILABLE=y
CT_LIBC_eglibc_AVAILABLE=y
CT_LIBC_SUPPORT_THREADS_ANY=y
# CT_LIBC_SUPPORT_NPTL is not set
CT_LIBC_SUPPORT_LINUXTHREADS=y
# CT_LIBC_SUPPORT_WIN32THREADS is not set
CT_THREADS="linuxthreads"

#
# Common C library options
#
# CT_THREADS_NPTL is not set
CT_THREADS_LINUXTHREADS=y
# CT_THREADS_WIN32THREADS is not set
# CT_THREADS_NONE is not set
CT_LIBC_XLDD=y

#
# uClibc other options
#
CT_LIBC_UCLIBC_LNXTHRD_OLD=y
# CT_LIBC_UCLIBC_LNXTHRD_NEW is not set
CT_LIBC_UCLIBC_LNXTHRD="old"
# CT_LIBC_UCLIBC_LOCALES is not set
# CT_LIBC_UCLIBC_WCHAR is not set

#
# Debug facilities
#
CT_DEBUG_ltrace=y
CT_LTRACE_V_0_5_3=y
# CT_LTRACE_V_0_5_2 is not set
# CT_LTRACE_V_0_5 is not set
# CT_LTRACE_V_0_4 is not set
CT_LTRACE_VERSION="0.5.3"
CT_LTRACE_0_5_3_or_later=y
CT_DEBUG_gdb=y
CT_GDB_CROSS=y
# CT_GDB_CROSS_STATIC is not set
# CT_GDB_NATIVE is not set
CT_GDB_GDBSERVER=y
CT_GDB_GDBSERVER_STATIC=y
# CT_GDB_V_7_2 is not set
# CT_GDB_V_7_1 is not set
# CT_GDB_V_7_0_1 is not set
# CT_GDB_V_7_0 is not set
CT_GDB_V_6_8=y
CT_GDB_VERSION="6.8"
CT_DEBUG_duma=y
CT_DUMA_A=y
CT_DUMA_SO=y
CT_DUMA_V_2_5_15=y
# CT_DUMA_V_2_5_14 is not set
# CT_DUMA_V_2_5_12 is not set
# CT_DUMA_V_2_5_8 is not set
# CT_DUMA_V_2_5_1 is not set
CT_DUMA_VERSION="2_5_15"
CT_DEBUG_dmalloc=y
CT_DMALLOC_V_5_5_2=y
CT_DMALLOC_VERSION="5.5.2"
CT_DEBUG_strace=y
# CT_STRACE_V_4_5_20 is not set
CT_STRACE_V_4_5_19=y
# CT_STRACE_V_4_5_18 is not set
# CT_STRACE_V_4_5_17 is not set
# CT_STRACE_V_4_5_16 is not set
# CT_STRACE_V_4_5_15 is not set
CT_STRACE_VERSION="4.5.19"

#
# Companion libraries
#
CT_COMPLIBS_NEEDED=y
CT_GMP_NEEDED=y
CT_MPFR_NEEDED=y
# CT_PPL_NEEDED is not set
# CT_CLOOG_NEEDED is not set
# CT_MPC_NEEDED is not set
# CT_LIBELF_NEEDED is not set
CT_COMPLIBS=y
# CT_WRAPPER_NEEDED is not set
CT_GMP=y
CT_MPFR=y
CT_LIBELF_TARGET=y
# CT_GMP_V_5_0_1 is not set
CT_GMP_V_4_3_2=y
# CT_GMP_V_4_3_1 is not set
# CT_GMP_V_4_3_0 is not set
# CT_GMP_V_4_2_4 is not set
# CT_GMP_V_4_2_2 is not set
CT_GMP_VERSION="4.3.2"
# CT_MPFR_V_3_0_0 is not set
CT_MPFR_V_2_4_2=y
# CT_MPFR_V_2_4_1 is not set
# CT_MPFR_V_2_4_0 is not set
# CT_MPFR_V_2_3_2 is not set
# CT_MPFR_V_2_3_1 is not set
CT_MPFR_VERSION="2.4.2"

#
# libelf version needed to build for target
#
CT_LIBELF_V_0_8_13=y
# CT_LIBELF_V_0_8_12 is not set
CT_LIBELF_VERSION="0.8.13"

#
# Companion libraries common options
#
CT_COMPLIBS_BACKUP=y
# CT_COMPLIBS_CHECK is not set
# CT_COMPLIBS_SHARED is not set

#
# Companion tools
#

#
# READ HELP before you say 'Y' below !!!
#
# CT_COMP_TOOLS is not set

#
# Test suite
#
# CT_TEST_SUITE is not set
# CT_TEST_SUITE_GCC is not set

   

参考链接：

http://forum.samdroid.net/wiki/showwiki/How+to+build+cross+toolchains+for+ARM+crosstool-NG?s=3be360ee3bb8458456aadf55f3229e12&do=comments

http://ymorin.is-a-geek.org/projects/crosstool