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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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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 FREE CHAPTER 2. Setting Up the Development Environment 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

The Android-x86 start up process

In Chapter 1, Introduction to Android System Programming, we introduced the Android-x86 project, which is an open source project to provide the Android Board Support Package (BSP) for Intel devices. It uses an approach similar to Microsoft Windows or Linux distributions for desktops by using universal media to boot all kinds of Intel devices.

In order to achieve the goal of using one medium to boot all devices, it splits the boot sequence into two stages. The first stage is to boot a minimum embedded Linux environment to enable hardware devices. In the second stage, it switches to the Android system through chroot or switch_root. The second stage of the boot process is the same as we discussed previously. Let's look at the first stage of the Android-x86 boot process in detail. We will reuse it for the Android emulator in this chapter. This approach can help to simplify the start...

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