The document outlines the process for building AOSP for the Nexus 7 device, highlighting requirements such as a 64-bit Linux distribution and hardware specifications. It includes various steps like checking out the AOSP and Linux kernel, downloading device drivers, and configuration details necessary for the build. Additionally, it warns users about potential risks like voiding the warranty and suggests that support is DIY only.

1. Building AOSP for NexusBuilding AOSP for Nexus
77
Nanik TolaramNanik Tolaram
@nanikjava@nanikjava

2. Thank You !Thank You !

3. WARNING !WARNING !
 Voiding warrantyVoiding warranty
 Bricked deviceBricked device
 No support (DIY support)No support (DIY support)

4. Who Am I ?Who Am I ?
 Enterprise Java DeveloperEnterprise Java Developer
 Android Framework & Kernel tinkererAndroid Framework & Kernel tinkerer
 Creating electronics gadgetsCreating electronics gadgets
 ozandroid.info & kernel.ozandroid.infoozandroid.info & kernel.ozandroid.info

5. What you need ?What you need ?
 Android DeviceAndroid Device
 64-bit Linux based distro64-bit Linux based distro
 Fast Computer (16/32GB RAM, MultiFast Computer (16/32GB RAM, Multi
Core processor, Fast hard drive)Core processor, Fast hard drive)
 Patience !!!Patience !!!

6. Why Nexus 7 ?Why Nexus 7 ?
 Source code (kernel) & binaries availableSource code (kernel) & binaries available
 Code name – Grouper (WiFi) / NakashiCode name – Grouper (WiFi) / Nakashi
(3G)(3G)
 BIG community supportBIG community support

7. ArchitectureArchitecture

8. PartitionPartition
 Recovery – recovery.imgRecovery – recovery.img
 ““saviour” partitionsaviour” partition
 Boot – boot.imgBoot – boot.img
 Main partition for bottingMain partition for botting
 System – system.imgSystem – system.img
 Android framework & apps partitionAndroid framework & apps partition
 Data – data.imgData – data.img
 Application data storage partitionApplication data storage partition

9. BootingBooting
Bootloader Microcode
Boot Partition
System Partition
Recovery ?
Recovery Partition
N
Y

10. Building ProcessBuilding Process
1.1. Checkout AOSPCheckout AOSP
2.2. Checkout Linux KernelCheckout Linux Kernel
3.3. Download Device DriversDownload Device Drivers
4.4. Extract & Device DriversExtract & Device Drivers
5.5. Change ConfigurationChange Configuration
6.6. BuildBuild

11. Source CodeSource Code
http://elinux.org/Android_Source_Code_Description

12. Building – Code &Building – Code &
DriversDrivers
 Android Source CodeAndroid Source Code
 Checkout Code - source.android.com/source/downloading.htmlCheckout Code - source.android.com/source/downloading.html
 Branch – masterBranch – master
 Nexus 7 DriversNexus 7 Drivers
 developers.google.com/android/nexus/drivers/#grouperdevelopers.google.com/android/nexus/drivers/#grouper
 Extract and Copy to <aosp>/vendorExtract and Copy to <aosp>/vendor

13. Building –Building –
ConfigurationConfiguration
 Linux Kernel & ConfigurationLinux Kernel & Configuration
 Linux Code - android.googlesource.com/kernel/tegra/Linux Code - android.googlesource.com/kernel/tegra/
 Linux Config Info - source.android.com/source/building-kernels.htmlLinux Config Info - source.android.com/source/building-kernels.html
 tegra3_android_defconfig - config for Nexus 7tegra3_android_defconfig - config for Nexus 7
 Build ConfigurationBuild Configuration
 /build/core/tasks/kernel.mk (from Cyanogenmod)/build/core/tasks/kernel.mk (from Cyanogenmod)
 Linux Directory ConfigurationLinux Directory Configuration
 /device/asus/grouper/BoardConfigCommon.mk/device/asus/grouper/BoardConfigCommon.mk
 /device/asus/grouper/BoardConfig.mk/device/asus/grouper/BoardConfig.mk

14. DemoDemo
 Starting build processStarting build process
 /out folder/out folder
 Flashing (fastboot)Flashing (fastboot)