如何添加交叉编译工具链（toolchain）到环境变量？

Posted 2021-10-25 Dontla

文章目录

• • 查看当前环境变量 `echo $PATH`
  • 添加环境变量

查看当前环境变量 echo $PATH

[root@ubuntu /home/yg/rv/sdk/rv1.8/rv1126_rv1109]1# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

添加环境变量

查找位置

/home/yg/rv/sdk/rv1.8/rv1126_rv1109/buildroot/output/rockchip_rv1126_rv1109/host/bin/

然后用gedit打开/etc/bash.bashrc，在最后一行添加

export PATH=/home/yg/rv/sdk/rv1.8/rv1126_rv1109/buildroot/output/rockchip_rv1126_rv1109/host/bin/:$PATH

保存退出

然后用source命令来让它生效

source /etc/bash.bashrc

然后查看命令，可以看到已经生效了

which命令

[root@ubuntu /home/yg]2# which arm-linux-gnueabihf-gcc
/home/yg/rv/sdk/rv1.8/rv1126_rv1109/buildroot/output/rockchip_rv1126_rv1109/host/bin//arm-linux-gnueabihf-gcc

type命令

[root@ubuntu /home/yg]3# type arm-linux-gnueabihf-gcc
arm-linux-gnueabihf-gcc 是 /home/yg/rv/sdk/rv1.8/rv1126_rv1109/buildroot/output/rockchip_rv1126_rv1109/host/bin/arm-linux-gnueabihf-gcc

–version

[root@ubuntu /home/yg]4# arm-linux-gnueabihf-gcc --version
arm-linux-gnueabihf-gcc (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36)) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

tab键

echo $PATH

[root@ubuntu /home/yg]8# echo $PATH
/home/yg/rv/sdk/rv1.8/rv1126_rv1109/buildroot/output/rockchip_rv1126_rv1109/host/bin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

参考文章1：设置交叉编译工具链的环境变量

参考文章2：安装交叉编译工具链后设置环境变量