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

Product type Paperback

Published in May 2017

Publisher Packt

ISBN-13 9781787125360

Length 470 pages

Edition 1st Edition

Languages

Java

Tools

Android

Concepts

Android Development

Authors (2):

Roger Ye

Shen Liu

View More author details

Table of Contents (15) Chapters

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

Booting a disk image on the Android emulator

Once we have done all the changes, we can build the qcow2 image using the following command:

$ make qcow2_img USE_SQUASHFS=0
...
make_ext4fs -T -1 -S out/target/product/x86emu/root/file_contexts -L 
system -l 1342177280 -a system out/target/product/x86emu/obj/PACKAGING/systemimage_intermediates/system.img out/target/product/x86emu/system out/target/product/x86emu/system
Creating filesystem with parameters:
    Size: 1342177280
    Block size: 4096
    Blocks per group: 32768
    Inodes per group: 8192
    Inode size: 256
    Journal blocks: 5120
    Label: system
    Blocks: 327680
    Block groups: 10
    Reserved block group size: 79
Created filesystem with 2122/81920 inodes and 178910/327680 blocks
Install system fs image: out/target/product/x86emu/system.img

As we can see from the preceding command-line output, system.img will be built as usual. After that, the ramdisk image,...

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Authors (2)

Liu

Mike Liu studied Mathematics and Software Engineering at Nanjing University and Brandeis University, where he graduated with a Bachelor's degree and a Master's degree, respectively. He is a Sun Certified Java Programmer (SCJP), Microsoft Certified Solution Developer for Visual Studio 6.0, and Microsoft Certified Solution Developer for .NET. He has been working as a software engineer/architect on various platforms (DOS, Unix, and Windows) using C/C++, Java, VB/VB.NET, and C#. Mike started using C# for production development back in the year 2001 when C# was still in beta stage, and he is now working as a senior software engineer for an investment management firm in Boston, Massachusetts, US. Mike had his first book, MITT: Multi-user Integrated Table-processing Tool Under Unix, Beijing Hangtian University Press, published in 1993, and second book, Advanced C# Programming, Tsinghua University Press, published in 2003. The previous three versions of this book were published in 2008, 2010, and 2012.

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Roger Ye

Roger Ye is an embedded system programmer who has great interest in virtualization, Android, and cross-platform technologies. His professional experience includes working with major companies like Motorola, Emerson, Intel, and EPAM, where he held the position of Engineering Manager. At Motorola and Emerson, he worked on embedded system projects for mobile devices and telecommunication infrastructures. He is now an engineering manager at EPAM, working with a team to deliver digital solutions for diverse clients.

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