交叉编译工具运行错误error while loading shared libraries: libz.so.1...
交叉编译工具运行错误error while loading shared libraries: libz.so.1...解决现象在ubuntu 18.04系统上安装arm-linux-gcc交叉编译工具arm-hisiv500-linux-gcc（海思交叉编译工具） mipsel-openwrt-linux-gcc（MT7xx8 openwrt交叉编译工具）等交叉编译工具，使用arm-linux-gcc -工具时提示:.....
原因在于，ubuntu 18.04 版本 ia32_libs 被废弃了导致没有32位的lib库。
解决方法1.我们使用命令： apt-file search 来查找，首先安装，按如下命令：sudo apt-getinstall apt-file
2.安装完以后系统会提示你update，如果没有提示，在终端输入如下命令：sudo apt-file update
3.依据系统提示运行apt list --upgradablesudo apt list --upgradable
4.对libz进行查找apt-file search libz.so.1
我查找的内容是lib32z1: /usr/lib32/libz.so.1
lib32z1: /usr/lib32/libz.so.1
lib32z1: /usr/lib32/libz.so.1.2.11
libx32z1: /usr/libx32/libz.so.1
libx32z1: /usr/libx32/libz.so.1.2.11
libzadc4: /usr/lib/x86_64-linux-gnu/genwqe/libz.so.1
zlib1g: /lib/x86_64-linux-gnu/libz.so.1
zlib1g: /lib/x86_64-linux-gnu/libz.so.1.2.11
5.对libz进行安装sudo apt-get install lib32z1
6.查检是否解决 arm-hisiv500-linux-gcc -varm-hisiv500-linux-gcc -v
Using built-in specs.
COLLECT_GCC=arm-hisiv500-linux-gcc
COLLECT_LTO_WRAPPER=/opt/hisi-linux/x86-arm/arm-hisiv500-linux/bin/../libexec/gcc/arm-hisiv500-linux-uclibcgnueabi/4.9.4/lto-wrapper
Target: arm-hisiv500-linux-uclibcgnueabi
Configured with: ../gcc-linaro-4.9-2015.06/configure --host=x86_64-linux-gnu --build=x86_64-linux-gnu --target=arm-hisiv500-linux-uclibcgnueabi --prefix=/home/sying/build-toolchain/gcc-uclibc/install/arm-hisiv500-linux --enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch --with-arch=armv5te --with-gnu-as --with-gnu-ld --enable-languages=c,c++ --enable-shared --enable-lto --enable-symvers=gnu --enable-__cxa_atexit --enable-nls --enable-clocale=gnu --enable-extra-hisi-multilibs --with-sysroot=/home/sying/build-toolchain/gcc-uclibc/install/arm-hisiv500-linux/target --with-build-sysroot=/home/sying/build-toolchain/gcc-uclibc/install/arm-hisiv500-linux/target --with-gmp=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --with-mpfr=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --with-mpc=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --with-ppl=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --with-cloog=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --with-libelf=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --enable-libgomp --disable-libitm --disable-libsanitizer --enable-poison-system-directories --with-libelf=/home/sying/build-toolchain/gcc-uclibc/install/host_lib --with-pkgversion=Hisilicon_v500_20150831 --with-bugurl=http://www.hisilicon.com/cn/service/claim.html
Thread model: posix
gcc version 4.9.4 20150629 (prerelease) (Hisilicon_v500_20150831)看到上述内容，则问题已经解决了。
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