用 5 个简单的步骤编译我们自己的安卓内核

原文:https://www . geeksforgeeks . org/编译-我们自己的-安卓-5 步内核-简单/

安卓内核帮助应用程序与设备的硬件组件进行通信。

比如:

  1. Most of us are familiar with game mode . Its function is to instruct the processor and graphics processing unit to run at the maximum frequency.
  2. Another example is power saving mode . It instructs the processor and graphics processing unit to run at their minimum frequency.

需要编译我们自己的内核: 编译我们自己的内核可能会非常有用，因为:

  • Use our own kernel.
  • The user experience can be further optimized as needed, which is also helpful for open source development .

编译我们自己的内核的步骤:

  1. Prerequisites: The following are prerequisites for compiling our own Android kernel:

    • Ubuntu or any other Linux-based OS
    • Familiar with basic Linux command
    • 阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金·阿金 Github

    • Equipment [Source code [T2】 T30 Open the terminal and paste it as follows:

      java sudo apt-get install      git ccache automake flex lzop bison \      gperf build-essential zip curl          zlib1g-dev zlib1g-dev:i386 \      g++-multilib python-networkx           libxml2-utils bzip2 libbz2-dev \      libbz2-1.0 libghc-bzlib-dev           squashfs-tools pngcrush \      schedtool dpkg-dev liblz4-tool           make optipng maven libssl-dev \      pwgen libswitch-perl policycoreutils           minicom libxml-sax-base-perl \      libxml-simple-perl bc          libc6-dev-i386 lib32ncurses5-dev \      x11proto-core-dev libx11-dev           lib32z-dev libgl1-mesa-dev xsltproc unzip](https://www.geeksforgeeks.org/language-processors-assembler-compiler-and-interpreter/) * Download required documents: * Clone the device source on the local disk:

      ```java
mkdir mykernel
  git clone {link to your device kernel source}
```

      • Download a compatible GCC tool chain. In this paper, GCC of AOSP is used.

        java cd mykernel    git clone https://android.googlesource.com/platform/              prebuilts/gcc/linux-x86/aarch64/              aarch64-linux-android-4.9    toolchain

      • Download a compatible CLANG tool chain. This paper uses Clang of AOSP.

      • Move the downloaded file to the mykernel folder , and then use the following command to extract it:

        java tar vxzf linux-x86-android-9.0.0_r48-clang-4691093.tar.gz

    • 编译内核:

      ```java cd mykernel rm -rf out mkdir out export ARCH=arm64 export SUBARCH=arm64 export DTC_EXT=dtc

      make O=out ARCH=arm64 {device defconfig}

      PATH="${PWD}/bin:${PWD}/toolchain/bin:${PATH}" \ make -j$(nproc --all) O=out \                       ARCH=arm64 \                       CC=clang \                       CLANG_TRIPLE=aarch64-linux-gnu- \                       CROSS_COMPILE=aarch64-linux-android-                       | tee kernel.log ```

      在这里，将{device defconfig}替换为您的配置文件的名称。您可以在/arch/arm64/configs 文件夹中找到它。

    • Boot the compiled kernel:

      • Browse to /out/arch/ARM64/boot , find image-DTB file (compiled zImage) and copy it.
      • Download Android mirror kitchen and decompile your stock boot image. Once you decompile it, you will find the stock code in the decompiled folder. Replace it with the previously copied one and recompile the boot image.

      • Flash Fast boot uses the following commands:

        java fastboot flash boot mykernel.img

    • Error encountered in processing: A kernel.log file will be generated in mykernel folder. Find the wrong line and find a solution. Also, please don't forget to attach the log file when posting for help in the forum.

这将是基本的内核，一旦它成功启动，可以添加更多的功能。

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