Compile environment to build

Ready to compile

Compiling Android requires high machine configuration:

64-bit CPU

64GB physical memory + swap memory

250GB of free disk space

The official recommendation is the Ubuntu 18.04 operating system.

The initialization of the compilation environment can refer to

http://source.android.com/source/initializing.html

 。

18.04 package installation reference:

   sudo apt-get update
   sudo apt-get install git-core gnupg flex bison build-essential zip \
   curl zlib1g-dev libc6-dev-i386 x11proto-core-dev libx11-dev lib32z1-dev \
   libgl1-mesa-dev libxml2-utils xsltproc unzip fontconfig

Compilation FAQ

Because everyone's PC system version and environment configuration are
different, the compilation after installing the software package is
not necessarily successful, and it is inevitable that there will be
some errors caused by the lack of some software packages, such as:

Q1

    OBJCOPY spl/u-boot-spl-nodtb.bin
     CAT     spl/u-boot-spl-dtb.bin
     COPY    spl/u-boot-spl.bin
     CFGCHK  u-boot.cfg
   ERROR: No 'dtc', please: apt-get install device-tree-compiler

Don't worry, we could install the lacking software package(dtc)
according to the error message, just like you see:

   apt-get install device-tree-compiler