【openwrt】编译源码

首先，我用的是系统ubuntu2004，openwrt版本是github最新版本的代码。

sudo apt-get install git g   make libncurses5-dev subversion libssl-dev gawk libxml-parser-perl unzip wget python xz-utils vim zlibc zlib1g zlib1g-dev openjdk-8-jdk build-essential ccache gettext xsltproc 

git clone https://github.com/openwrt/openwrt.git 

切换到下载的源代码，输入以下指令

./scripts/feeds update -a  ./scripts/feeds install -a 

切换到源码目录，输入make menuconfig打开菜单，在顶层选择以下选项，我用卓钛JS7628。

Target System (MediaTek Ralink MIPS) Subtarget (MT76x8 based boards) Target Profile (Jotale JS76x8 32M) 

openwrt编译时，需要下载一些依赖包，切换到下载的源代码，输入以下指令

make download V=s 

make V=s 

切换到源码目录，输入make menuconfig打开菜单，在顶层选择以下选项

[*] Package the OpenWrt-based Toolchain 

选择后，重新编译以获得交叉编译链。输入以下指令，将交叉编译链解压到指定文件夹中。

mkdir ~/tool tar xvf ~/sources/openwrt/bin/targets/ramips/mt76x8/openwrt-toolchain-ramips-mt76x8_gcc-11.3.0_musl.Linux-x86_64.tar.xz -C ~/tool/ 

解压后，还需要将解压路径添加到环境变量中，因为解压路径太长，我顺便换了名字。

mv /home/moqi/tool/openwrt-toolchain-ramips-mt76x8_gcc-11.3.0_musl.Linux-x86_64/ /home/moqi/tool/openwrt-toolchain/ echo export STAGING_DIR="/home/moqi/sources/openwrt/staging_dir"  >> ~/.bashrc echo export PATH="$PATH:/home/moqi/tool/openwrt-toolchain/toolchain-mipsel_24kc_gcc-11.3.0_musl/bin" >> ~/.bashrc source ~/.bashrc 

输入命令行mipsel-openwrt-linux-gcc -v如果有以下输出证明，测试安装是否成功。

COLLECT_LTO_WRAPPER=/home/moqi/tool/openwrt-toolchain/toolchain-mipsel_24kc_gcc-11.3.0_musl/bin/../libexec/gcc/mipsel-openwrt-linux-musl/11.3.0/lto-wrapper Target: mipsel-openwrt-linux-musl Configured with: /home/moqi/sources/openwrt/build_dir/toolchain-mipsel_24kc_gcc-11.3.0_musl/gcc-11.3.0/configure --with-bugurl=http://bugs.openwrt.org/ --with-pkgversion='OpenWrt GCC 11.3.0 r19830-849ffbd5ab' --prefix=/home/moqi/sources/openwrt/staging_dir/toolchain-mipsel_24kc_gcc-11.3.0_musl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=mipsel-openwrt-linux-musl --with-gnu-ld --enable-target-optspace --disable-libgomp --disable-libmudflap --disable-multilib --disablelibmpx --disable-nls --disable-libssp --without-isl --without-cloog --with-host-libstdcxx=-lstdc++ --with-float=soft --with-gmp=/home/moqi/sources/openwrt/staging_dir/host --with-mpfr=/home/moqi/sources/openwrt/staging_dir/host --with-mpc=/home/moqi/sources/openwrt/staging_dir/host --disable-decimal-float --with-diagnostics-color=auto-if-env --enable-__cxa_atexit --disable-libstdcxx-dual-abi --with-default-libstdcxx-abi=new --with-mips-plt --with-headers=/home/moqi/sources/openwrt/staging_dir/toolchain-mipsel_24kc_gcc-11.3.0_musl/include --enable-languages=c,c++ --enable-shared --enable-threads --with-slibdir=/home/moqi/sources/openwrt/staging_dir/toolchain-mipsel_24kc_gcc-11.3.0_musl/lib --enable-lto --with-libelf=/home/moqi/sources/openwrt/staging_dir/host --disable-libsanitizer
Thread model: posix
...

Kernel modules  --->
    Wireless Drivers  --->
        <*> kmod-mt76........... MediaTek MT76x2/MT7603 wireless driver (metapackage)

LuCI  --->
    1. Collections  --->
        <*> luci................... LuCI interface with Uhttpd as Webserver (default)

1. 全新编译：

make ./package/utils/ugps/{clean,compile} V=s

2. 单独编译：

make ./package/utils/ugps/compile V=s

3. 清空：

make ./package/utils/ugps/clean V=s