Android N 编译

0.参考链接

我是根据https://source.android.com/source/initializing.html进行环境搭建，里面很详细，还有jdk，jre的下载地址。

1. 环境

1.1 编译环境

Android N需要使用Java 8进行编译

Download the.debpackages for 64-bit architecture fromarchive.ubuntu.com:

openjdk-8-jre-headless_8u45-b14-1_amd64.debwith SHA2560f5aba8db39088283b51e00054813063173a4d8809f70033976f83e214ab56c0

openjdk-8-jre_8u45-b14-1_amd64.debwith SHA2569ef76c4562d39432b69baf6c18f199707c5c56a5b4566847df908b7d74e15849

openjdk-8-jdk_8u45-b14-1_amd64.debwith SHA2566e47215cf6205aa829e6a0a64985075bd29d1f428a4006a80c9db371c2fc3c4c

Optionally, confirm the checksums of the downloaded files against the SHA256 string listed with each package above.

For example, with thesha256sumtool:

$ sha256sum{downloaded.deb file}

Install the packages:

$ sudo apt-getupdate

Rundpkgfor each of the .deb files you downloaded. It may produce errors due to missing dependencies:

$ sudo dpkg-i{downloaded.deb file}

To fix missing dependencies:

$ sudo apt-get-f install

1.2 更新默认的java环境

$sudoupdate-alternatives --config java

$sudoupdate-alternatives --config javac

要编译Android N相关代码时，需要java 和 javac 都切换成 java-8-openjdk。

如果需要编译Android M相关代码时，还需要调用上面命令，切换成java-7-openjdk。貌似不需要

1.3 安装需要的包

$sudoapt-getinstallgit-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