【OpneWRT】编译ipk

环境配置

使用清华大学的镜像软件站https://mirrors.tuna.tsinghua.edu.cn/

SDK直接下载：
https://mirrors.tuna.tsinghua.edu.cn/openwrt/releases/18.06.8/targets/ramips/mt7620/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64.tar.xz

直接解压：

tar -xf openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64.tar.xz

配置环境变量 PATH 和 STAGING_DIR

export PATH=$PATH:"/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/staging_dir/toolchain-mipsel_24kc_gcc-7.3.0_musl/bin"
export STAGING_DIR='/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/staging_dir'

配置环境

/etc/profile文件为系统的每个用户设置环境变量信息,此文件的修改会影响到所有用户。

/etc/profile 和 .bashrc的区别：/etc/profile影响所有用户，.bashrc影响当前用户。

1）进入root权限
2）打开配置文件 /etc/profile

vi /etc/profile

3）在文件中添加命令

export PATH=$PATH:路径

即

export PATH=$PATH:"/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/staging_dir/toolchain-mipsel_24kc_gcc-7.3.0_musl/bin"
export STAGING_DIR='/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/staging_dir'

编译

make V=s

直接编译

make V=s

报错，刚接触OpenWRT，暂时没有找到原因。

Generating index for package ./kmod-zram_4.14.171-1_mipsel_24kc.ipk
Generating index for package ./libatomic_7.3.0-2_mipsel_24kc.ipk
Generating index for package ./libgcc_7.3.0-2_mipsel_24kc.ipk
Generating index for package ./libpthread_1.1.19-2_mipsel_24kc.ipk
Generating index for package ./librt_1.1.19-2_mipsel_24kc.ipk
Generating index for package ./libstdcpp_7.3.0-2_mipsel_24kc.ipk
Generating index for package ./helloworld_1_mipsel_24kc.ipk
Generating index for package ./helloworld_1_mipsel_24kc.ipk
Signing package index...
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
Cannot open file '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/key-build' for reading
package/Makefile:82: recipe for target 'package/index' failed
make[2]: *** [package/index] Error 1
make[2]: Leaving directory '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64'
Makefile:55: recipe for target 'world' failed
make[1]: *** [world] Error 2
make[1]: Leaving directory '/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64'
/home/admin/Downloads/openwrt-sdk-18.06.8-ramips-mt7620_gcc-7.3.0_musl.Linux-x86_64/include/toplevel.mk:209: recipe for target 'world' failed
make: *** [world] Error 2

make package/helloworld/compile

编译单个 ipk：helloworld

编译命令

make package/helloworld/compile

编译成功
查找对应ipk位置

find ./ -name '*.ipk' | grep hello
./bin/packages/mipsel_24kc/base/helloworld_1_mipsel_24kc.ipk

参考资料

openWRT的SDK编译环境的安装和设置https://blog.csdn.net/sun_sky1/article/details/107963827
openwrt使用sdk编译应用程序http://www.javashuo.com/article/p-ryzsseme-ds.html
linux下配置编译器的环境变量https://blog.csdn.net/weixin_45647721/article/details/123557026
/etc/profile文件简单介绍https://blog.csdn.net/weixin_42031299/article/details/119089926

备注

一开始忘记配置环境变量 PATH 和 STAGING_DIR，导致编译不成功。