Linux kernel 编译方法大全记录

一、这是一个我自己写的自动make脚本：

#!/bin/shexport ARCH=armexport CROSS_COMPILE=arm-linux-gnueabihf-       export CHEN_DTB="chenfl.dtb"        if [ 1 -eq $# ]; then    if [ $1 = "dtb" ]; then        make -j2  $CHEN_DTB  O=out        cp ~/am335x/kernel4.4.12/out/arch/arm/boot/dts/am335x-chenfl.dtb  $CHEN_PATH -rf        # cp ~/am335x/kernel4.4.12/out/arch/arm/boot/dts/am335x-sbc7109.dtb  $CHEN_PATH -rf        sync        echo "Copy  dts over ...\n"    elif [ $1 = "defconfig" ]; then        make -j2 aplex_sbc7109_defconfig O=out        echo "Use aplex_sbc7109_defconfig over ...\n"    elif [ $1 = "menuconfig" ]; then        make -j2 $1  O=out    elif [ $1 = "zImage" ]; then        make -j2 $1  O=out        cp ~/am335x/kernel4.4.12/out/arch/arm/boot/zImage   $CHEN_PATH -rf        sync        echo "Copy kernel  zImage to myself file over ... \n"    elif [ $1 = "all" ]; then        make -j2 $1  O=out        cp ~/am335x/kernel4.4.12/out/arch/arm/boot/zImage   $CHEN_PATH -rf        cp ~/am335x/kernel4.4.12/out/arch/arm/boot/dts/am335x-sbc7109.dtb  $CHEN_PATH -rf        sync        echo "Copy kernel  image and dts over ... \n"    elif [ $1 = "savedefconfig" ]; then        make $1 O=out        echo "Save .config to defconfig over ... \n"    elif [ $1 = "clean" ]; then        make $1 O=out        echo "Clean out over ...\n"    elif [ $1 = "distclean" ]; then        make $1 O=out        echo "Distclean over ...\n"    elif [ $1 = "help" ]; then        make $1    else        echo " "        echo "You can following command to do the thing you want to do..."        echo "./remake dtb              -- Only cross-complie your device tree table"        echo "./remake defconfig        -- Only configure your defconfig"        echo "./remake menuconfig       -- Only configure your configuration"        echo "./remake zImage           -- Only cross-complie your Linux kernel zImage "        echo "./remake all              -- Cross-complie kernel and dts"        echo "./remake savedefconfig    -- Save your .config as defconfig "        echo "./remake clean            -- Clean your output file"        echo "./remake distclean        -- Deep clean your output file"        echo "./remake help             -- Check help infomation "    fielse    echo " "    echo "You can following command to do the thing you want to do..." echo "./remake dtb              -- Only cross-complie your device tree table"    echo "./remake defconfig        -- Only configure your defconfig"    echo "./remake menuconfig       -- Only configure your configuration"    echo "./remake zImage           -- Only cross-complie your Linux kernel zImage "    echo "./remake all              -- Cross-complie kernel and dts"    echo "./remake savedefconfig    -- Save your .config as defconfig "    echo "./remake clean            -- Clean your output file"    echo "./remake distclean        -- Deep clean your output file"    echo "./remake help             -- Check help infomation "fi

二、当你指定ARCH=arm 之后，如下命令运行，则会出现arm相关kernel的help信息。

make ARCH=arm help这里面完全介绍了有关arm kernel make的帮助信息。

三、挑几个重点的讲解一下。

编译的时候，首先, 指定芯片的架构以及交叉编译器前缀。export ARCH=armexport CROSS_COMPILE=arm-linux-gnueabihf-   make clean除了保存config文件以及构建外围模块必要的文件其他的全部清除。make mrproper清理全部生成的文件+config文件+不同的备份文件make distcleanclean + mrproper , 彻底的清理执行完上面的步骤之后。选择一个自己的产品参考的defconfig文件在arch/arm/configs/ 里面，这里面全部都是你可以选择的defconfig例如：make omap2plus_defconfig O=outO 的指定是指output file 的意思，此时会在out文件夹下生成.config 文件。当然，你应该还有一些想要添加的，我这里直接使用menuconfig进行配置make menuconfig O=out配置好了，你想要保存.config文件为自己的配置的一个备份。make savedefconfig O=out这时在out文件夹下就会有一个defconfig文件当所有的都配置好了，现在，你想编译自己的设备树chenfl.dtsmake -j2 chenfl.dtb O=out你想编译自己的镜像zImagemake -j2 zImage O=out你想编译自己的模块make -j2 modules O=out你想编译所有的东西make -j2 all O=out好了，所有常用的make功能介绍完毕。zImage 在out/arch/arm/boot/zImagechenfl.dtb 在out/arch/arm/boot/dts/chenfl.dtbdefconfig 你可以复制到arm/arch/configs/ 里面，后缀必须是defconfig