参考更优雅的(不拆硬盘)拯救死翘翘了的WD MyCloud(Ubuntu 17.10)编译出来的Busybox是只有3MB大小的样子，这样编译出来的东西非常基础，功能有限。如果想要增加其他软件的时候，最少改动的情况下，一般都依赖GLIBC,而GLIBC完整编译出来的库接近50MB，而我们修复系统，是一个纯内存文件系统。直接采用GLIBC会非常浪费不多的内存空间。
因此在低内存的系统上采用uClibc，变成一个不错的选择。下面我们讲一下如何通过crosstool-ng-1.23.0构建一个我们需要的编译系统出来。
首先编译crosstool-ng-1.23.0源代码
$ sudo apt-get update $ sudo apt-get upgrade $ sudo apt-get -y install autoconf $ sudo apt-get -y install gperf $ sudo apt-get -y install bison $ sudo apt-get -y install flex $ sudo apt-get -y install texinfo $ sudo apt-get -y install help2man $ sudo apt-get -y install ncurses-dev $ cd ~ $ git clone https://github.com/crosstool-ng/crosstool-ng $ cd crosstool-ng $ ./bootstrap $ ./configure --prefix=`echo ~`/wd_crosstool $ make $ make install
如果下载crosstool-ng源代码存在问题，可以从本站下载一份代码拷贝。点击此处下载。
$ cd ~ $ mkdir wd_fix_toolchain $ cd wd_fix_toolchain $ export PATH=~/wd_crosstool/bin/:$PATH $ cp ~/crosstool-ng/samples/arm-unknown-linux-uclibcgnueabihf/crosstool.config .config $ ct-ng oldconfig #默认一路回车,只是注意，中间选择Linux内核版本的使用，选择使用Linux 3.2 CT_LINUX_V_3_2=y $ ct-ng build
最终的.config文件，可以参考下面的配置信息，或者简单的拷贝这个文件到编译目录即可
#
# Automatically generated file; DO NOT EDIT.
# crosstool-NG crosstool-ng-1.23.0-280-g01e32905 Configuration
#
CT_CONFIGURE_has_static_link=y
CT_CONFIGURE_has_wget=y
CT_CONFIGURE_has_stat_flavor_GNU=y
CT_CONFIGURE_has_make_3_81_or_newer=y
CT_CONFIGURE_has_autoconf_2_63_or_newer=y
CT_CONFIGURE_has_autoreconf_2_63_or_newer=y
CT_CONFIGURE_has_automake_1_15_or_newer=y
CT_CONFIGURE_has_gnu_m4_1_4_12_or_newer=y
CT_CONFIGURE_has_git=y
CT_MODULES=y
#
# Paths and misc options
#
#
# crosstool-NG behavior
#
# CT_OBSOLETE is not set
CT_EXPERIMENTAL=y
# CT_ALLOW_BUILD_AS_ROOT is not set
# CT_DEBUG_CT is not set
#
# Paths
#
CT_LOCAL_TARBALLS_DIR="${HOME}/src"
CT_SAVE_TARBALLS=y
CT_WORK_DIR="${CT_TOP_DIR}/.build"
CT_BUILD_TOP_DIR="${CT_WORK_DIR}/${CT_HOST:+HOST-${CT_HOST}/}${CT_TARGET}"
CT_PREFIX_DIR="${CT_PREFIX:-${HOME}/x-tools}/${CT_HOST:+HOST-${CT_HOST}/}${CT_TARGET}"
CT_RM_RF_PREFIX_DIR=y
CT_REMOVE_DOCS=y
CT_PREFIX_DIR_RO=y
CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
# CT_STRIP_TARGET_TOOLCHAIN_EXECUTABLES is not set
#
# Downloading
#
CT_DOWNLOAD_AGENT_WGET=y
# CT_DOWNLOAD_AGENT_NONE is not set
# CT_FORBID_DOWNLOAD is not set
# CT_FORCE_DOWNLOAD is not set
CT_CONNECT_TIMEOUT=10
CT_DOWNLOAD_WGET_OPTIONS="--passive-ftp --tries=3 -nc --progress=dot:binary"
# CT_ONLY_DOWNLOAD is not set
# CT_USE_MIRROR is not set
CT_VERIFY_DOWNLOAD_DIGEST=y
CT_VERIFY_DOWNLOAD_DIGEST_SHA512=y
# CT_VERIFY_DOWNLOAD_DIGEST_SHA256 is not set
# CT_VERIFY_DOWNLOAD_DIGEST_SHA1 is not set
# CT_VERIFY_DOWNLOAD_DIGEST_MD5 is not set
CT_VERIFY_DOWNLOAD_DIGEST_ALG="sha512"
# CT_VERIFY_DOWNLOAD_SIGNATURE is not set
#
# Extracting
#
# CT_FORCE_EXTRACT is not set
CT_OVERRIDE_CONFIG_GUESS_SUB=y
# CT_ONLY_EXTRACT is not set
CT_PATCH_BUNDLED=y
# CT_PATCH_LOCAL is not set
# CT_PATCH_BUNDLED_LOCAL is not set
# CT_PATCH_LOCAL_BUNDLED is not set
# CT_PATCH_NONE is not set
CT_PATCH_ORDER="bundled"
#
# Build behavior
#
CT_PARALLEL_JOBS=0
CT_LOAD=""
CT_USE_PIPES=y
CT_EXTRA_CFLAGS_FOR_BUILD=""
CT_EXTRA_LDFLAGS_FOR_BUILD=""
CT_EXTRA_CFLAGS_FOR_HOST=""
CT_EXTRA_LDFLAGS_FOR_HOST=""
# CT_CONFIG_SHELL_SH is not set
# CT_CONFIG_SHELL_ASH is not set
CT_CONFIG_SHELL_BASH=y
# CT_CONFIG_SHELL_CUSTOM is not set
CT_CONFIG_SHELL="${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_ALPHA is not set
CT_ARCH_ARM=y
# CT_ARCH_AVR is not set
# CT_ARCH_M68K is not set
# CT_ARCH_MICROBLAZE is not set
# CT_ARCH_MIPS is not set
# CT_ARCH_MSP430 is not set
# CT_ARCH_NIOS2 is not set
# CT_ARCH_POWERPC is not set
# CT_ARCH_RISCV is not set
# CT_ARCH_S390 is not set
# CT_ARCH_SH is not set
# CT_ARCH_SPARC is not set
# CT_ARCH_X86 is not set
# CT_ARCH_XTENSA is not set
CT_ARCH="arm"
CT_ARCH_CHOICE_KSYM="ARM"
CT_ARCH_CPU="arm926ej-s"
CT_ARCH_ARM_PKG_KSYM=""
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_FORCE=y
CT_ARCH_ARM_EABI=y
CT_ARCH_ARM_TUPLE_USE_EABIHF=y
CT_ARCH_SUFFIX=""
#
# Generic target options
#
# CT_MULTILIB is not set
CT_DEMULTILIB=y
CT_ARCH_SUPPORTS_BOTH_MMU=y
CT_ARCH_DEFAULT_HAS_MMU=y
CT_ARCH_USE_MMU=y
CT_ARCH_SUPPORTS_EITHER_ENDIAN=y
CT_ARCH_DEFAULT_LE=y
# CT_ARCH_BE is not set
CT_ARCH_LE=y
# CT_ARCH_BE_LE is not set
# CT_ARCH_LE_BE is not set
CT_ARCH_ENDIAN="little"
CT_ARCH_SUPPORTS_32=y
CT_ARCH_SUPPORTS_64=y
CT_ARCH_DEFAULT_32=y
CT_ARCH_BITNESS=32
CT_ARCH_32=y
# CT_ARCH_64 is not set
#
# Target optimisations
#
CT_ARCH_SUPPORTS_WITH_ARCH=y
CT_ARCH_SUPPORTS_WITH_CPU=y
CT_ARCH_SUPPORTS_WITH_TUNE=y
CT_ARCH_SUPPORTS_WITH_FLOAT=y
CT_ARCH_SUPPORTS_WITH_FPU=y
CT_ARCH_SUPPORTS_SOFTFP=y
CT_ARCH_EXCLUSIVE_WITH_CPU=y
CT_ARCH_FPU=""
# CT_ARCH_FLOAT_AUTO is not set
CT_ARCH_FLOAT_HW=y
# CT_ARCH_FLOAT_SOFTFP is not set
# CT_ARCH_FLOAT_SW is not set
CT_TARGET_CFLAGS=""
CT_TARGET_LDFLAGS=""
CT_ARCH_FLOAT="hard"
#
# Toolchain options
#
#
# General toolchain options
#
CT_FORCE_SYSROOT=y
CT_USE_SYSROOT=y
CT_SYSROOT_NAME="sysroot"
CT_SYSROOT_DIR_PREFIX=""
CT_WANTS_STATIC_LINK=y
CT_WANTS_STATIC_LINK_CXX=y
# CT_STATIC_TOOLCHAIN is not set
CT_SHOW_CT_VERSION=y
CT_TOOLCHAIN_PKGVERSION=""
CT_TOOLCHAIN_BUGURL=""
#
# Tuple completion and aliasing
#
CT_TARGET_VENDOR="unknown"
CT_TARGET_ALIAS_SED_EXPR=""
CT_TARGET_ALIAS=""
#
# 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=""
#
# Misc options
#
# CT_TOOLCHAIN_ENABLE_NLS is not set
#
# Operating System
#
CT_KERNEL_SUPPORTS_SHARED_LIBS=y
# CT_KERNEL_BARE_METAL is not set
CT_KERNEL_LINUX=y
CT_KERNEL="linux"
CT_KERNEL_CHOICE_KSYM="LINUX"
CT_KERNEL_LINUX_PKG_KSYM="LINUX"
CT_LINUX_DIR_NAME="linux"
CT_LINUX_PKG_NAME="linux"
CT_LINUX_SRC_RELEASE=y
# CT_LINUX_SRC_DEVEL is not set
# CT_LINUX_SRC_CUSTOM is not set
# CT_LINUX_V_4_14 is not set
# CT_LINUX_V_4_13 is not set
# CT_LINUX_V_4_12 is not set
# CT_LINUX_V_4_11 is not set
# CT_LINUX_V_4_10 is not set
# CT_LINUX_V_4_9 is not set
# CT_LINUX_V_4_4 is not set
# CT_LINUX_V_4_1 is not set
# CT_LINUX_V_3_16 is not set
# CT_LINUX_V_3_13 is not set
# CT_LINUX_V_3_12 is not set
# CT_LINUX_V_3_10 is not set
# CT_LINUX_V_3_4 is not set
CT_LINUX_V_3_2=y
# CT_LINUX_V_2_6_32 is not set
CT_LINUX_VERSION="3.2.96"
CT_LINUX_MIRRORS="$(CT_Mirrors kernel.org linux ${CT_LINUX_VERSION})"
CT_LINUX_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_LINUX_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_LINUX_ARCHIVE_FORMATS=".tar.xz .tar.gz"
CT_LINUX_SIGNATURE_FORMAT="unpacked/.sign"
CT_LINUX_3_2_or_later=y
CT_KERNEL_LINUX_VERBOSITY_0=y
# CT_KERNEL_LINUX_VERBOSITY_1 is not set
# CT_KERNEL_LINUX_VERBOSITY_2 is not set
CT_KERNEL_LINUX_VERBOSE_LEVEL=0
CT_KERNEL_LINUX_INSTALL_CHECK=y
#
# Common kernel options
#
CT_SHARED_LIBS=y
#
# Binary utilities
#
CT_ARCH_BINFMT_ELF=y
CT_BINUTILS_BINUTILS=y
CT_BINUTILS="binutils"
CT_BINUTILS_CHOICE_KSYM="BINUTILS"
CT_BINUTILS_BINUTILS_PKG_KSYM="BINUTILS"
CT_BINUTILS_DIR_NAME="binutils"
CT_BINUTILS_USE_GNU=y
CT_BINUTILS_USE="BINUTILS"
CT_BINUTILS_PKG_NAME="binutils"
CT_BINUTILS_SRC_RELEASE=y
# CT_BINUTILS_SRC_DEVEL is not set
# CT_BINUTILS_SRC_CUSTOM is not set
CT_BINUTILS_V_2_29_1=y
# CT_BINUTILS_V_2_28_1 is not set
# CT_BINUTILS_V_2_27 is not set
# CT_BINUTILS_V_2_26_1 is not set
CT_BINUTILS_VERSION="2.29.1"
CT_BINUTILS_MIRRORS="$(CT_Mirrors GNU binutils) $(CT_Mirrors sourceware binutils/releases)"
CT_BINUTILS_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_BINUTILS_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_BINUTILS_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
CT_BINUTILS_SIGNATURE_FORMAT="packed/.sig"
CT_BINUTILS_2_25_or_later=y
CT_BINUTILS_2_23_or_later=y
#
# GNU binutils
#
CT_BINUTILS_HAS_HASH_STYLE=y
CT_BINUTILS_HAS_GOLD=y
CT_BINUTILS_HAS_PLUGINS=y
CT_BINUTILS_HAS_PKGVERSION_BUGURL=y
CT_BINUTILS_GOLD_SUPPORTS_ARCH=y
CT_BINUTILS_GOLD_SUPPORT=y
# CT_BINUTILS_LINKER_LD is not set
# CT_BINUTILS_LINKER_GOLD is not set
CT_BINUTILS_LINKER_LD_GOLD=y
# CT_BINUTILS_LINKER_GOLD_LD is not set
CT_BINUTILS_GOLD_INSTALLED=y
CT_BINUTILS_GOLD_THREADS=y
CT_BINUTILS_LINKER_BOTH=y
CT_BINUTILS_LINKERS_LIST="ld,gold"
CT_BINUTILS_LD_WRAPPER=y
CT_BINUTILS_LINKER_DEFAULT="bfd"
CT_BINUTILS_PLUGINS=y
CT_BINUTILS_EXTRA_CONFIG_ARRAY=""
# CT_BINUTILS_FOR_TARGET is not set
#
# C-library
#
# CT_LIBC_BIONIC is not set
# CT_LIBC_GLIBC is not set
# CT_LIBC_MUSL is not set
CT_LIBC_UCLIBC=y
CT_LIBC="uClibc"
CT_LIBC_CHOICE_KSYM="UCLIBC"
CT_THREADS="nptl"
CT_LIBC_UCLIBC_PKG_KSYM="UCLIBC"
CT_UCLIBC_DIR_NAME="uClibc"
CT_UCLIBC_USE_UCLIBC_NG_ORG=y
CT_UCLIBC_USE="UCLIBC_NG"
CT_UCLIBC_NG_PKG_NAME="uClibc-ng"
CT_UCLIBC_NG_SRC_RELEASE=y
# CT_UCLIBC_NG_SRC_DEVEL is not set
# CT_UCLIBC_NG_SRC_CUSTOM is not set
CT_UCLIBC_NG_V_1_0_27=y
# CT_UCLIBC_NG_V_1_0_26 is not set
# CT_UCLIBC_NG_V_1_0_25 is not set
CT_UCLIBC_NG_VERSION="1.0.27"
CT_UCLIBC_NG_MIRRORS="http://downloads.uclibc-ng.org/releases/${CT_UCLIBC_NG_VERSION}"
CT_UCLIBC_NG_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_UCLIBC_NG_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_UCLIBC_NG_ARCHIVE_FORMATS=".tar.xz .tar.lz .tar.bz2 .tar.gz"
CT_UCLIBC_NG_SIGNATURE_FORMAT="packed/.asc"
CT_UCLIBC_1_0_15_or_later=y
CT_UCLIBC_1_0_0_or_later=y
CT_UCLIBC_0_9_33_2_or_later=y
CT_LIBC_UCLIBC_PARALLEL=y
CT_LIBC_UCLIBC_NG=y
CT_UCLIBC_MERGED_LINUXTHREADS=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_3 is not set
CT_LIBC_UCLIBC_DEBUG_LEVEL=0
CT_LIBC_UCLIBC_CONFIG_FILE=""
CT_LIBC_UCLIBC_LNXTHRD=""
# CT_LIBC_UCLIBC_LOCALES is not set
# CT_LIBC_UCLIBC_IPV6 is not set
CT_LIBC_UCLIBC_WCHAR=y
# CT_LIBC_UCLIBC_FENV is not set
# CT_LIBC_UCLIBC_RPC is not set
CT_LIBC_UCLIBC_USE_GNU_SUFFIX=y
CT_LIBC_SUPPORT_THREADS_ANY=y
CT_LIBC_SUPPORT_THREADS_NATIVE=y
CT_LIBC_SUPPORT_THREADS_LT=y
CT_LIBC_SUPPORT_THREADS_NONE=y
#
# Common C library options
#
CT_THREADS_NATIVE=y
# CT_THREADS_LT is not set
# CT_THREADS_NONE is not set
# CT_CREATE_LDSO_CONF is not set
CT_LIBC_XLDD=y
#
# C compiler
#
CT_CC_CORE_PASSES_NEEDED=y
CT_CC_CORE_PASS_1_NEEDED=y
CT_CC_CORE_PASS_2_NEEDED=y
CT_CC_SUPPORT_CXX=y
CT_CC_SUPPORT_FORTRAN=y
CT_CC_SUPPORT_ADA=y
CT_CC_SUPPORT_OBJC=y
CT_CC_SUPPORT_OBJCXX=y
CT_CC_SUPPORT_GOLANG=y
CT_CC_GCC=y
CT_CC="gcc"
CT_CC_CHOICE_KSYM="GCC"
CT_CC_GCC_PKG_KSYM="GCC"
CT_GCC_DIR_NAME="gcc"
CT_GCC_USE_GNU=y
# CT_GCC_USE_LINARO is not set
CT_GCC_USE="GCC"
CT_GCC_PKG_NAME="gcc"
CT_GCC_SRC_RELEASE=y
# CT_GCC_SRC_DEVEL is not set
# CT_GCC_SRC_CUSTOM is not set
CT_GCC_V_7_2_0=y
# CT_GCC_V_6_4_0 is not set
# CT_GCC_V_5_5_0 is not set
# CT_GCC_V_4_9_4 is not set
CT_GCC_VERSION="7.2.0"
CT_GCC_MIRRORS="$(CT_Mirrors GNU gcc/gcc-${CT_GCC_VERSION}) $(CT_Mirrors sourceware gcc/releases/gcc-${CT_GCC_VERSION})"
CT_GCC_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_GCC_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_GCC_ARCHIVE_FORMATS=".tar.xz .tar.gz"
CT_GCC_SIGNATURE_FORMAT=""
CT_GCC_7_or_later=y
CT_GCC_6_or_later=y
CT_GCC_5_or_later=y
CT_GCC_4_9_2_or_later=y
CT_GCC_4_9_or_later=y
CT_GCC_4_8_or_later=y
CT_CC_GCC_ENABLE_PLUGINS=y
CT_CC_GCC_GOLD=y
CT_CC_GCC_HAS_LIBMPX=y
CT_CC_GCC_ENABLE_CXX_FLAGS=""
CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY=""
CT_CC_GCC_EXTRA_CONFIG_ARRAY=""
CT_CC_GCC_STATIC_LIBSTDCXX=y
# CT_CC_GCC_SYSTEM_ZLIB is not set
CT_CC_GCC_CONFIG_TLS=m
#
# Optimisation features
#
CT_CC_GCC_USE_GRAPHITE=y
CT_CC_GCC_USE_LTO=y
#
# Settings for libraries running on target
#
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
# CT_CC_GCC_LIBQUADMATH 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
# CT_CC_GCC_BUILD_ID is not set
CT_CC_GCC_LNK_HASH_STYLE_DEFAULT=y
# CT_CC_GCC_LNK_HASH_STYLE_SYSV is not set
# CT_CC_GCC_LNK_HASH_STYLE_GNU is not set
# CT_CC_GCC_LNK_HASH_STYLE_BOTH is not set
CT_CC_GCC_LNK_HASH_STYLE=""
CT_CC_GCC_DEC_FLOAT_AUTO=y
# CT_CC_GCC_DEC_FLOAT_BID is not set
# CT_CC_GCC_DEC_FLOAT_DPD is not set
# CT_CC_GCC_DEC_FLOATS_NO is not set
#
# Additional supported languages:
#
CT_CC_LANG_CXX=y
# CT_CC_LANG_FORTRAN 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_GOLANG is not set
CT_CC_LANG_OTHERS=""
#
# Debug facilities
#
CT_DEBUG_DUMA=y
CT_DEBUG_DUMA_PKG_KSYM="DUMA"
CT_DUMA_DIR_NAME="duma"
CT_DUMA_PKG_NAME="duma"
CT_DUMA_SRC_RELEASE=y
# CT_DUMA_SRC_DEVEL is not set
# CT_DUMA_SRC_CUSTOM is not set
CT_DUMA_V_2_5_15=y
CT_DUMA_VERSION="2_5_15"
CT_DUMA_MIRRORS="http://downloads.sourceforge.net/project/duma/duma/${CT_DUMA_VERSION//_/.}"
CT_DUMA_ARCHIVE_FILENAME="@{pkg_name}_@{version}"
CT_DUMA_ARCHIVE_DIRNAME="@{pkg_name}_@{version}"
CT_DUMA_ARCHIVE_FORMATS=".tar.gz .zip"
CT_DUMA_SIGNATURE_FORMAT=""
CT_DUMA_SO=y
CT_DUMA_CUSTOM_WRAPPER=y
CT_DEBUG_GDB=y
CT_DEBUG_GDB_PKG_KSYM="GDB"
CT_GDB_DIR_NAME="gdb"
CT_GDB_USE_GNU=y
CT_GDB_USE="GDB"
CT_GDB_PKG_NAME="gdb"
CT_GDB_SRC_RELEASE=y
# CT_GDB_SRC_DEVEL is not set
# CT_GDB_SRC_CUSTOM is not set
CT_GDB_V_8_0_1=y
# CT_GDB_V_7_12_1 is not set
# CT_GDB_V_7_11_1 is not set
CT_GDB_VERSION="8.0.1"
CT_GDB_MIRRORS="$(CT_Mirrors GNU gdb) $(CT_Mirrors sourceware gdb/releases)"
CT_GDB_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_GDB_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_GDB_ARCHIVE_FORMATS=".tar.xz .tar.gz"
CT_GDB_SIGNATURE_FORMAT=""
CT_GDB_8_0_or_later=y
CT_GDB_7_2_or_later=y
CT_GDB_7_0_or_later=y
CT_GDB_CROSS=y
CT_GDB_CROSS_STATIC=y
# CT_GDB_CROSS_SIM is not set
CT_GDB_CROSS_EXTRA_CONFIG_ARRAY=""
CT_GDB_NATIVE=y
CT_GDB_NATIVE_STATIC=y
CT_GDB_GDBSERVER=y
CT_GDB_GDBSERVER_HAS_IPA_LIB=y
# CT_GDB_GDBSERVER_STATIC is not set
# CT_GDB_GDBSERVER_STATIC_LIBSTDCXX is not set
# CT_GDB_GDBSERVER_BUILD_IPA_LIB is not set
CT_GDB_HAS_PKGVERSION_BUGURL=y
CT_GDB_HAS_PYTHON=y
CT_GDB_INSTALL_GDBINIT=y
CT_DEBUG_LTRACE=y
CT_DEBUG_LTRACE_PKG_KSYM="LTRACE"
CT_LTRACE_DIR_NAME="ltrace"
CT_LTRACE_PKG_NAME="ltrace"
CT_LTRACE_SRC_RELEASE=y
# CT_LTRACE_SRC_DEVEL is not set
# CT_LTRACE_SRC_CUSTOM is not set
CT_LTRACE_V_0_7_3=y
CT_LTRACE_VERSION="0.7.3"
CT_LTRACE_MIRRORS="http://ftp.debian.org/debian/pool/main/l/ltrace ftp:://ftp.debian.org/debian/pool/main/l/ltrace"
CT_LTRACE_ARCHIVE_FILENAME="@{pkg_name}_@{version}.orig"
CT_LTRACE_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_LTRACE_ARCHIVE_FORMATS=".tar.bz2"
CT_LTRACE_SIGNATURE_FORMAT=""
CT_DEBUG_STRACE=y
CT_DEBUG_STRACE_PKG_KSYM="STRACE"
CT_STRACE_DIR_NAME="strace"
CT_STRACE_PKG_NAME="strace"
CT_STRACE_SRC_RELEASE=y
# CT_STRACE_SRC_DEVEL is not set
# CT_STRACE_SRC_CUSTOM is not set
CT_STRACE_V_4_20=y
# CT_STRACE_V_4_19 is not set
# CT_STRACE_V_4_18 is not set
# CT_STRACE_V_4_17 is not set
# CT_STRACE_V_4_16 is not set
# CT_STRACE_V_4_15 is not set
CT_STRACE_VERSION="4.20"
CT_STRACE_MIRRORS="http://downloads.sourceforge.net/project/strace/strace/${CT_STRACE_VERSION}"
CT_STRACE_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_STRACE_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_STRACE_ARCHIVE_FORMATS=".tar.xz"
CT_STRACE_SIGNATURE_FORMAT=""
#
# Companion libraries
#
# CT_COMPLIBS_CHECK is not set
# CT_COMP_LIBS_CLOOG is not set
CT_COMP_LIBS_EXPAT=y
CT_COMP_LIBS_EXPAT_PKG_KSYM="EXPAT"
CT_EXPAT_DIR_NAME="expat"
CT_EXPAT_PKG_NAME="expat"
CT_EXPAT_SRC_RELEASE=y
# CT_EXPAT_SRC_DEVEL is not set
# CT_EXPAT_SRC_CUSTOM is not set
CT_EXPAT_V_2_2_5=y
CT_EXPAT_VERSION="2.2.5"
CT_EXPAT_MIRRORS="http://downloads.sourceforge.net/project/expat/expat/${CT_EXPAT_VERSION}"
CT_EXPAT_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_EXPAT_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_EXPAT_ARCHIVE_FORMATS=".tar.bz2"
CT_EXPAT_SIGNATURE_FORMAT=""
# CT_COMP_LIBS_GETTEXT is not set
CT_COMP_LIBS_GMP=y
CT_COMP_LIBS_GMP_PKG_KSYM="GMP"
CT_GMP_DIR_NAME="gmp"
CT_GMP_PKG_NAME="gmp"
CT_GMP_SRC_RELEASE=y
# CT_GMP_SRC_DEVEL is not set
# CT_GMP_SRC_CUSTOM is not set
CT_GMP_V_6_1_2=y
CT_GMP_VERSION="6.1.2"
CT_GMP_MIRRORS="https://gmplib.org/download/gmp https://gmplib.org/download/gmp/archive $(CT_Mirrors GNU gmp)"
CT_GMP_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_GMP_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_GMP_ARCHIVE_FORMATS=".tar.xz .tar.lz .tar.bz2"
CT_GMP_SIGNATURE_FORMAT="packed/.sig"
CT_GMP_5_1_or_later=y
CT_COMP_LIBS_ISL=y
CT_COMP_LIBS_ISL_PKG_KSYM="ISL"
CT_ISL_DIR_NAME="isl"
CT_ISL_PKG_NAME="isl"
CT_ISL_SRC_RELEASE=y
# CT_ISL_SRC_DEVEL is not set
# CT_ISL_SRC_CUSTOM is not set
CT_ISL_V_0_18=y
# CT_ISL_V_0_17_1 is not set
# CT_ISL_V_0_16_1 is not set
# CT_ISL_V_0_15 is not set
CT_ISL_VERSION="0.18"
CT_ISL_MIRRORS="http://isl.gforge.inria.fr"
CT_ISL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_ISL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_ISL_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz"
CT_ISL_SIGNATURE_FORMAT=""
CT_ISL_0_15_or_later=y
CT_ISL_REQUIRE_0_15_or_later=y
CT_ISL_0_14_or_later=y
CT_ISL_REQUIRE_0_14_or_later=y
CT_ISL_0_13_or_later=y
CT_ISL_0_12_or_later=y
CT_ISL_REQUIRE_0_12_or_later=y
CT_COMP_LIBS_LIBELF=y
CT_COMP_LIBS_LIBELF_PKG_KSYM="LIBELF"
CT_LIBELF_DIR_NAME="libelf"
CT_LIBELF_PKG_NAME="libelf"
CT_LIBELF_SRC_RELEASE=y
# CT_LIBELF_SRC_DEVEL is not set
# CT_LIBELF_SRC_CUSTOM is not set
CT_LIBELF_V_0_8_13=y
CT_LIBELF_VERSION="0.8.13"
CT_LIBELF_MIRRORS="http://www.mr511.de/software"
CT_LIBELF_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_LIBELF_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_LIBELF_ARCHIVE_FORMATS=".tar.gz"
CT_LIBELF_SIGNATURE_FORMAT=""
# CT_COMP_LIBS_LIBICONV is not set
CT_COMP_LIBS_MPC=y
CT_COMP_LIBS_MPC_PKG_KSYM="MPC"
CT_MPC_DIR_NAME="mpc"
CT_MPC_PKG_NAME="mpc"
CT_MPC_SRC_RELEASE=y
# CT_MPC_SRC_DEVEL is not set
# CT_MPC_SRC_CUSTOM is not set
CT_MPC_V_1_0_3=y
CT_MPC_VERSION="1.0.3"
CT_MPC_MIRRORS="http://www.multiprecision.org/mpc/download $(CT_Mirrors GNU mpc)"
CT_MPC_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_MPC_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_MPC_ARCHIVE_FORMATS=".tar.gz"
CT_MPC_SIGNATURE_FORMAT="packed/.sig"
CT_COMP_LIBS_MPFR=y
CT_COMP_LIBS_MPFR_PKG_KSYM="MPFR"
CT_MPFR_DIR_NAME="mpfr"
CT_MPFR_PKG_NAME="mpfr"
CT_MPFR_SRC_RELEASE=y
# CT_MPFR_SRC_DEVEL is not set
# CT_MPFR_SRC_CUSTOM is not set
CT_MPFR_V_3_1_6=y
CT_MPFR_VERSION="3.1.6"
CT_MPFR_MIRRORS="http://www.mpfr.org/mpfr-${CT_MPFR_VERSION} $(CT_Mirrors GNU mpfr)"
CT_MPFR_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_MPFR_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_MPFR_ARCHIVE_FORMATS=".tar.xz .tar.bz2 .tar.gz .zip"
CT_MPFR_SIGNATURE_FORMAT="packed/.asc"
CT_COMP_LIBS_NCURSES=y
CT_COMP_LIBS_NCURSES_PKG_KSYM="NCURSES"
CT_NCURSES_DIR_NAME="ncurses"
CT_NCURSES_PKG_NAME="ncurses"
CT_NCURSES_SRC_RELEASE=y
# CT_NCURSES_SRC_DEVEL is not set
# CT_NCURSES_SRC_CUSTOM is not set
CT_NCURSES_V_6_0=y
CT_NCURSES_VERSION="6.0"
CT_NCURSES_MIRRORS="ftp://invisible-island.net/ncurses $(CT_Mirrors GNU ncurses)"
CT_NCURSES_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_NCURSES_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_NCURSES_ARCHIVE_FORMATS=".tar.gz"
CT_NCURSES_SIGNATURE_FORMAT="packed/.sig"
# CT_NCURSES_NEW_ABI is not set
CT_NCURSES_HOST_CONFIG_ARGS=""
CT_NCURSES_HOST_DISABLE_DB=y
CT_NCURSES_HOST_FALLBACKS="linux,xterm,xterm-color,xterm-256color,vt100"
CT_NCURSES_TARGET_CONFIG_ARGS=""
# CT_NCURSES_TARGET_DISABLE_DB is not set
CT_NCURSES_TARGET_FALLBACKS=""
# CT_COMP_LIBS_ZLIB is not set
# CT_LIBICONV_NEEDED is not set
# CT_GETTEXT_NEEDED is not set
CT_GMP_NEEDED=y
CT_MPFR_NEEDED=y
CT_ISL_NEEDED=y
CT_MPC_NEEDED=y
CT_LIBELF_TARGET=y
CT_EXPAT_NEEDED=y
CT_EXPAT_TARGET=y
CT_NCURSES_NEEDED=y
CT_NCURSES_TARGET=y
# CT_ZLIB_NEEDED is not set
CT_GMP=y
CT_MPFR=y
CT_ISL=y
CT_MPC=y
CT_EXPAT=y
CT_NCURSES=y
#
# Companion tools
#
# CT_COMP_TOOLS_FOR_HOST is not set
# CT_COMP_TOOLS_AUTOCONF is not set
# CT_COMP_TOOLS_AUTOMAKE is not set
CT_COMP_TOOLS_LIBTOOL=y
CT_COMP_TOOLS_LIBTOOL_PKG_KSYM="LIBTOOL"
CT_LIBTOOL_DIR_NAME="libtool"
CT_LIBTOOL_PKG_NAME="libtool"
CT_LIBTOOL_SRC_RELEASE=y
# CT_LIBTOOL_SRC_DEVEL is not set
# CT_LIBTOOL_SRC_CUSTOM is not set
CT_LIBTOOL_V_2_4_6=y
CT_LIBTOOL_VERSION="2.4.6"
CT_LIBTOOL_MIRRORS="$(CT_Mirrors GNU libtool)"
CT_LIBTOOL_ARCHIVE_FILENAME="@{pkg_name}-@{version}"
CT_LIBTOOL_ARCHIVE_DIRNAME="@{pkg_name}-@{version}"
CT_LIBTOOL_ARCHIVE_FORMATS=".tar.xz .tar.gz"
CT_LIBTOOL_SIGNATURE_FORMAT="packed/.sig"
# CT_COMP_TOOLS_M4 is not set
# CT_COMP_TOOLS_MAKE is not set
#
# Test suite
#
# CT_TEST_SUITE_GCC is not set
最终在如下目录生成我们需要的编译程序
~/x-tools/arm-unknown-linux-uclibcgnueabihf
编译过程中的源代码下载可能会非常缓慢，可以从本站下载一份代码的拷贝。点击这里下载。下载完成后，解压缩到当前用户根目录，编译的时候，会自动使用已经下载的文件。可以使用下面的命令进行下载解压缩操作：
$ cd ~ $ wget http://www.mobibrw.com/wp-content/uploads/2017/12/src.tar.xz $ tar -xvf src.tar.xz
如果懒得编译，也可点击这里下载一份已经编译好的编译工具。
博主，想请教一个问题。我按照你的流程创建了针对WDMyCloud Gen2的toolchain，这个机器的cpu是Marvell Armada 375，cotex a9 armv7-a，因此我稍微修改了一下.config,我的config传到https://github.com/machsix/WDMyCloud-Gen2/blob/master/toolchain/.config了。toolchain成功编译出来后，我先静态编译了c和c++的helloword，传到wdmycloud上也都正确运行了。然后我就照着别人的脚本写了个编译aria2的。环境变量设置在这里https://github.com/machsix/WDMyCloud-Gen2/blob/master/toolchain/source.sh,编译的脚本在这里https://github.com/machsix/WDMyCloud-Gen2/blob/master/compile_aria_mach6.sh。用的lib有expat+zlib+openssl+sqlite3+libssh2, 我在本机上成功编译出来了，但是这次传到wd上就提示segmentation fault。请问您觉得能是什么原因造成的？多谢
这种情况一般是由于链接的动态库导致的，如果只编译helloword能正常运行，那么说明glibc这部分是适合的，但是其他的很难说是哪个库导致的问题，如果有条件建议编译调试版本，并使用gdb调试一下。另外，建议查看系统日志，一般系统会记录应用崩溃信息的