系统配置

Ubuntu系统（须为14.04或16.04的64位ubuntu系统）

须安装软件：make,gcc,curl,git,autoconf,automake,pkg-config,libtool,libncurses5-dev,autotools-dev,flex,bison,gperf(3.0.4):
sudo apt-get install make gcc curl
sudo apt-get install git
sudo apt-get install autoconf automake pkg-config libtool libncurses5-dev autotools-dev flex bison
sudo apt-get install gperf=3.0.4-1

同时下载 repo 工具，并确保它在PATH中并可执行：
mkdir ~/bin
PATH=~/bin:$PATH
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo

Win10自带Ubuntu系统（须为14.04或16.04的64位ubuntu系统）

与原生Ubuntu系统有两点不同
1. 软件源更换为中科大源，即/etc/apt/下的source.list文件的内容替换为以下内容：
    deb https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
    deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic main restricted universe multiverse
    deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
    deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse
    deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
    deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse
    deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
    deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-security main restricted universe multiverse
    deb https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
    deb-src https://mirrors.ustc.edu.cn/ubuntu/ bionic-proposed main restricted universe multiverse
2. gperf安装不用选定版本，直接执行sudo apt-get install gperf

Download 代码

repo init -u https://github.com/FishsemiCode/manifest.git -b u1 -m u1.xml --repo-url=https://github.com/FishsemiCode/git-repo
repo sync

Build 构建

./build.sh u1/ap -j4

build生成image out/u1/ap.bin
prebuilt images: vendor/images cp.bin, sp.bin, ptable.bin

Release 版本

images/
├── ap.bin
├── aplite.bin
├── cp.bin
├── ptable.bin // 分区表
└── sp.bin