android5.0.1源码编译

1.git安装

    sudo apt-get install git
    git config –global user.email “[email protected]”
    git config –global user.name “wuhongyun”

2.repo安装

    mkdir ~/bin
    PATH=~/bin:$PATH
    curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
    chmod a+x ~/bin/repo

    如果curl没有安装

    sudo apt install curl

3.建立源码文件夹

    mkdir android
    cd android

4.初始化repo

    repo init -u https://aosp.tuna.tsinghua.edu.cn/platform/manifest

    如果失败则替换掉repo文件中的REPO_URL

    REPO_URL='https://mirrors.tuna.tsinghua.edu.cn/git/git-repo/'

    如提示repo has been initialized in /home/wuhongyun则是repo安装完成
    补充：不带参数的manifest命令用于获取master上最新的代码,但是可以通过-b参数指定获取某个特定的android版本

5.下载android版本

    repo init -u https://aosp.tuna.tsinghua.edu.cn/platform/manifest -b android-5.0.1_r1

6.同步代码到本地

    repo sync

7.安装JDK7

    sudo add-apt-repository ppa:openjdk-r/ppa
    sudo apt-get update 
    sudo apt-get install openjdk-7-jdk

    附：
    AOSP的Android主线                   OpenJDK 8
    Android 5.x至android 6.0            OpenJDK 7
    Android 2.3.x至Android 4.4.x       Oracle JDK 6
    Android 1.5至Android 2.2.x         Oracle JDK 5

8.依赖库下载

    

sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip u-boot-tools gawk

9.初始化编译环境

source build/envsetup.sh

10.选择编译目标

  lunch

    lunch命令后会出现很多编译目标，此时我们选择其一

11.开始编译

    make

    为了编译效率，可以使用make -j4命令指定编译线程数。

12.错误

 recipe for target 'out/host/linux-x86/obj32/lib/libnativehelper.so' failed

        1)
        修改art/build/Android.common_build.mk
      

        修改前：
        # Host.
        ART_HOST_CLANG := false
        ifneq ($(WITHOUT_HOST_CLANG),true)
        # By default, host builds use clang for better warnings.
        ART_HOST_CLANG := true
        endif
        修改后：
        # Host.
        ART_HOST_CLANG := false
        ifneq ($(WITHOUT_HOST_CLANG),false)
        # By default, host builds use clang for better warnings.
        ART_HOST_CLANG := true
        endif

        2)

        cp  /usr/bin/ld.gold   ~/android/android5.0/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6/x86_64-linux/bin/ld

        修改过上述代码后，最好执行一次make update-api，在make