Summary

In this chapter, we introduced the content of the AOSP source code. After that, we used goldfish lights HAL as an example to analyze the calling sequence from the application to HAL. Finally, we reviewed the Android architecture again using the Android system for the emulator. We also reviewed goldfish kernel and hardware to understand how they work together with the rest of the software stacks. In the next chapter, we will start to work on our own x86emu device and use it to explore how to extend an emulator to support additional functionalities.