1. Android build

• Download original android source code (android-7.0.0_r7) from http://source.android.com

  (

  $repo init -u git://10.168.177.185/platform/manifest.git -b android-7.0.0_r7

  $repo sync -cdq -j12 --no-tags

  $repo start android-7.0.0_r7 --all

  )

• Untar opensource packages of RS988_Nougat_Android.tar.gz into downloaded android source directory

  a) tar -xvzf RS988_Nougat_Android.tar.gz

• And, merge the source into the android source code

• Run following scripts to build android

  a) source build/envsetup.sh

  b) lunch 1

  c) make -j4

• When you compile the android source code, you have to add google original prebuilt source(toolchain) into the android directory.

• After build, you can find output at out/target/product/generic

2. Kernel Build

• Uncompress using following command at the android directory

  a) tar -xvzf RS988_Nougat_Kernel.tar.gz

• When you compile the kernel source code, you have to add google original prebuilt source(toolchain) into the android directory.

• Run following scripts to build kernel

• cd android/kernel/msm-3.18

• make ARCH=arm64 h1_lra_us-perf_defconfig

• make ARCH=arm64 KERNEL_COMPRESSION_SUFFIX=gz CROSS_COMPILE=../../prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-

• After build, you can find the build image(Image.gz) at arch/arm64/boot