Android System Development Android System Development FreeElectrons

444 Pages·2017·21.69 MB·English

Android System Development
Android System
Development

©Copyright2004-2019,Bootlin.
CreativeCommonsBY-SA3.0license.
Latestupdate:February15,2019.
Documentupdatesandsources:
https://bootlin.com/doc/training/android
Corrections,suggestions,contributionsandtranslationsarewelcome! embedded Linux and kernel engineering
[email protected]
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Rights to copy
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Documentsources: https://github.com/bootlin/training-materials/
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Hyperlinks in the document
There are many hyperlinks in the document
▶
Regular hyperlinks:
https://kernel.org/
▶
Kernel documentation links:
dev-tools/kasan
▶
Links to kernel source files and directories:
drivers/input/
include/linux/fb.h
▶
Links to the declarations, definitions and instances of kernel
symbols (functions, types, data, structures):
platform_get_irq()
GFP_KERNEL
struct file_operations
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Company at a glance
▶
Engineering company created in 2004,
named ”Free Electrons” until February 2018.
▶
Locations: Orange, Toulouse, Lyon (France)
▶
Serving customers all around the world
▶
Head count: 13
Only Free Software enthusiasts!
▶
Focus: Embedded Linux, Linux kernel, build systems and low
level Free and Open Source Software for embedded and
real-time systems.
▶
Activities: development, training, consulting, technical
support.
▶
Added value: get the best of the user and development
community and the resources it offers.
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Bootlin on-line resources
▶
All our training materials and technical presentations:
https://bootlin.com/docs/
▶
Technical blog:
https://bootlin.com/blog/
▶
News and discussions (LinkedIn):
https://www.linkedin.com/groups/4501089
▶
Quick news (Twitter):
https://twitter.com/bootlincom
▶
Elixir - browse Linux kernel sources on-line:
https://elixir.bootlin.com
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Generic course information
Generic course
information

©Copyright2004-2019,Bootlin. embedded Linux and kernel engineering
CreativeCommonsBY-SA3.0license.
Corrections,suggestions,contributionsandtranslationsarewelcome!
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Hardware used in this training session
BeagleBone Black, from CircuitCo
▶ Texas Instruments AM335x (ARM Cortex-A8
CPU)
▶ SoC with 3D acceleration, additional
processors (PRUs) and lots of peripherals.
▶ 512 MB of RAM
▶ 4 GB of on-board eMMC storage
▶ Ethernet, USB host and USB device,
microSD, micro HDMI
▶ 2 x 46 pins headers, with access to many
expansion buses (I2C, SPI, UART and more)
▶ A huge number of expansion boards, called
capes. See
https://elinux.org/Beagleboard:
BeagleBone_Capes.
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Course outline - Day 1
Building Android
▶
Introduction to Android
▶
Getting Android sources
▶
Building and booting Android
▶
Introduction to the Linux kernel
▶
Compiling and booting the Linux kernel
Labs: download Android sources, compile them and boot them
with the Android emulator. Recompile the Linux kernel.
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Course outline - Day 2
Android kernel, boot and filesystem details
▶
Android changes to the Linux kernel
▶
Android bootloaders
▶
Booting Android
▶
Using ADB
▶
Android filesystem
Labs: customize, compile and boot Android for the BeagleBone
Black board.
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Course outline - Day 3
Supporting a new product and customizing it
▶
Android build system. Add a new module and product.
▶
Android native layer - Bionic, Toolbox, init, various daemons,
Dalvik, hardware abstraction, JNI...
Labs: Use ADB, create a new product, customize the product for
the BeagleBone Black board.
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