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Android System Programming

You're reading from   Android System Programming Porting, customizing, and debugging Android HAL

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Product type Paperback
Published in May 2017
Publisher Packt
ISBN-13 9781787125360
Length 470 pages
Edition 1st Edition
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Tools
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Authors (2):
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Roger Ye Roger Ye
Author Profile Icon Roger Ye
Roger Ye
Shen Liu Shen Liu
Author Profile Icon Shen Liu
Shen Liu
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Table of Contents (15) Chapters Close

Preface 1. Introduction to Android System Programming 2. Setting Up the Development Environment FREE CHAPTER 3. Discovering Kernel, HAL, and Virtual Hardware 4. Customizing the Android Emulator 5. Enabling the ARM Translator and Introducing Native Bridge 6. Debugging the Boot Up Process Using a Customized ramdisk 7. Enabling Wi-Fi on the Android Emulator 8. Creating Your Own Device on VirtualBox 9. Booting Up x86vbox Using PXE/NFS 10. Enabling Graphics 11. Enabling VirtualBox-Specific Hardware Interfaces 12. Introducing Recovery 13. Creating OTA Packages 14. Customizing and Debugging Recovery

Summary

In this chapter, we analyzed the Android-x86 HAL and integrated it to x86vbox so that we are able to boot x86vbox over the next few chapters. We also analyzed the start-up process of Android-x86. We used the debug console in the first stage of the start-up process to analyze the kernel module loading process. Before we can actually boot the x86vbox on VirtualBox, one issue that we haven't resolved is which bootloader we should use. Unlike the emulator, it does not need a bootloader, since the emulator uses a built-in mini bootloader to load the kernel and ramdisk. VirtualBox is very similar to real hardware. We won't be able to boot up an operating system without a proper bootloader.

In the next chapter, we will discuss this issue and we will explain how we can resolve it using PXE boot supported by VirtualBox.

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