arm-linux-gnueabihf工具安装

1.下载编译器

比如[gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf.tar.xz]，主要問題就是非常慢(https://releases.linaro.org/components/toolchain/binaries/7.5-2019.12/arm-linux-gnueabihf/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf.tar.xz)

2.安装

先解压

xz -d gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf.tar.xz
tar -vxf gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf.tar

将当前的bin目录添加到环境变量中，使用命令pwd

root@xiaobai-virtual-machine:/home/xiaobai/Work/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin# pwd
/home/xiaobai/Work/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin

export PATH=/home/xiaobai/Work/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin:$PATH

环境变量生效

source ~/.bashrc

查看设置的路径，命令echo $PATH
顺便输入arm然后按按tab键看看有没有补齐

3.使用

输入命令arm-linux-gnueabihf-gcc -v，查看是否出现版本信息

Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/home/xiaobai/Work/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf/bin/../libexec/gcc/arm-linux-gnueabihf/7.5.0/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: '/home/tcwg-buildslave/workspace/tcwg-make-release_1/snapshots/gcc.git~linaro-7.5-2019.12/configure' SHELL=/bin/bash --with-mpc=/home/tcwg-buildslave/workspace/tcwg-make-release_1/_build/builds/destdir/x86_64-unknown-linux-gnu --with-mpfr=/home/tcwg-buildslave/workspace/tcwg-make-release_1/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gmp=/home/tcwg-buildslave/workspace/tcwg-make-release_1/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gnu-as --with-gnu-ld --disable-libmudflap --enable-lto --enable-shared --without-included-gettext --enable-nls --with-system-zlib --disable-sjlj-exceptions --enable-gnu-unique-object --enable-linker-build-id --disable-libstdcxx-pch --enable-c99 --enable-clocale=gnu --enable-libstdcxx-debug --enable-long-long --with-cloog=no --with-ppl=no --with-isl=no --disable-multilib --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --enable-threads=posix --enable-multiarch --enable-libstdcxx-time=yes --enable-gnu-indirect-function --with-build-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release_1/_build/sysroots/arm-linux-gnueabihf --with-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release_1/_build/builds/destdir/x86_64-unknown-linux-gnu/arm-linux-gnueabihf/libc --enable-checking=release --disable-bootstrap --enable-languages=c,c++,fortran,lto --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=arm-linux-gnueabihf --prefix=/home/tcwg-buildslave/workspace/tcwg-make-release_1/_build/builds/destdir/x86_64-unknown-linux-gnu
Thread model: posix
gcc version 7.5.0 (Linaro GCC 7.5-2019.12)