Android 14 Internals – customize Cuttlefish in the cloud

Course Curriculum

Chapter 1: Set up VMX enabled Ubuntu 20.04 in Google Cloud

Lecture 1: Create a Google Cloud account with compute engine enabled

Lecture 2: Install the gcloud CLI and connect to the AOSP project on your Google Cloud

Lecture 3: Create an Ubuntu 20.04 VM with VMX enabled

Chapter 2: Download the Android 14 source code, build and run the cuttlefish device

Lecture 1: Download the android-14.0.0_r21 branch

Lecture 2: Build and run the Cuttlefish VM

Chapter 3: Ubuntu Desktop + Android Studio for Platform (ASfP)

Lecture 1: Convert Ubuntu Server to Ubuntu Desktop

Lecture 2: Install and configure the Android Studio for Platform

Chapter 4: Tools – hmm, adb

Lecture 1: The 'hmm' Command

Lecture 2: Authorizing Real Device for ADB Connection

Chapter 5: Security basics

Lecture 1: User IDs and the Discretionary Access Control

Lecture 2: Mandatory Access Control – SELinux

Lecture 3: Process Status (ps) and Private Application Files in /data/data

Chapter 6: Images and partitions

Lecture 1: PRODUCT_MAKEFILES and Makefile Inheritance

Lecture 2: Generic System Image (GSI)

Lecture 3: Android Partitions

Lecture 4: Dynamic Partitions, "super.img", A/B System Updates and "fastbootd"

Chapter 7: Lab 1: AIDL for HAL – creating a CPU HAL Interface Definition

Lecture 1: About the Main Lab

Lecture 2: Change the CPU scaling governor via the command line (adb shell)

Lecture 3: Define an aidl_interface module in Android.bp

Lecture 4: Define a CPU interface in ICpu.aidl

Lecture 5: Build the CPU Interface using mm

Lecture 6: Add the AIDL interface to the Cuttlefish build

Chapter 8: Lab 2: Creating the service daemon

Lecture 1: Create an empty service holder in service.cpp

Lecture 2: Define a new CPU Service executable in Android.bp

Lecture 3: Define an init.rc persistent service pointing to the CPU service executable

Lecture 4: Define a Vendor Interface (VINTF) xml object

Lecture 5: Add the CPU Service to the Cuttlefish build

Chapter 9: Lab 3: Setting correct SELinux permissions

Lecture 1: Print the logcat and correctly label the service executable

Lecture 2: Define new SELinux types and use SELinux macros

Lecture 3: Use audit2allow to solve "avc: denied" errors

Chapter 10: Lab 4: Create and register the CPU service implementation

Lecture 1: Define the CPU class header file

Lecture 2: Define the CPU class implementation file

Lecture 3: Register the CPU service with the Service Manager

Lecture 4: Define a new CPU service interface SELinux type in the Service Manager

Chapter 11: Lab 5: Test the CPU service and fix permissions errors

Lecture 1: Create CpuTester executable

Lecture 2: Change the Scaling Governor file permissions

Chapter 12: Lab 6: Create a services system app with a Broadcast Receiver

Lecture 1: Extend the Application class

Lecture 2: Create a Broadcast Receiver to handle external requests

Lecture 3: Defne a persistent Android App in AndroidManifest.xml

Lecture 4: Create a strings.xml resources file

Lecture 5: Define an Android App module in Android.bp

Lecture 6: Set SELinux rules for the system app

Lecture 7: Test the services app by sending a broadcast

Chapter 13: Lab 7: Add Activity Control UI to the Platform app

Lecture 1: Create the resource files

Lecture 2: Extend the Activity class

Lecture 3: Add the activity to the AndroidManifest.xml file

Lecture 4: Test the Activity

Chapter 14: Lab 8: Debugging Tools

Lecture 1: Forcing a crash and using llvm-addr2line

Lecture 2: Debugging native service with lldb