This document outlines Android source code in 'master' branch from https://android.googlesource.com/ This page is a WIP page which means information will change constantly as it is based on a moving code

1. art

Contains mostly art VM source adbconnection - adb related function for using adb functionality

- adb related function for using adb functionality benchmark - for benchmark testing and used inside libcore/benchmark/src/benchmarks/regression

- for benchmark testing and used inside libcore/benchmark/src/benchmarks/regression build - build script for art

- build script for art compiler - compiler source code

- compiler source code dalvikvm - dalvik runtime code (dalvikvm)

- dalvik runtime code (dalvikvm) dex2oat

dexdump

dexlayout

dexlist

dexoptanalyzer

disassembler

dt_fd_forward - dt_fd_forward is a jdwpTransport library. It implements the [Java Debug Wire Protocol Transport Interface (jdwpTransport)](https://docs.oracle.com/javase/7/docs/technotes/guides/jpda/jdwpTransport.html). It allows one to handle and proxy JDWP traffic by supplying the implementation for Attach. This transport requires an address. The address is a single integer value that is the file-descriptor of an open AF\_UNIX socket.

- dt_fd_forward is a jdwpTransport library. It implements the [Java Debug Wire Protocol Transport Interface (jdwpTransport)](https://docs.oracle.com/javase/7/docs/technotes/guides/jpda/jdwpTransport.html). It allows one to handle and proxy JDWP traffic by supplying the implementation for Attach. This transport requires an address. The address is a single integer value that is the file-descriptor of an open AF\_UNIX socket. imgdiag

libartbase

libart_fake - - A fake libart made to satisfy some misbehaving apps that will attempt to link against libart.so.

- - A fake libart made to satisfy some misbehaving apps that will attempt to link against libart.so. libdexfile - dex file related library

- dex file related library libprofile - profiling library for dex

- profiling library for dex oatdump - oat file 'walk' and dump library

- oat file 'walk' and dump library openjdkjvm

openjdkjvmti - partial implementation of the JVMTI v1.2 interface for the android runtime as a plugin.

- partial implementation of the JVMTI v1.2 interface for the android runtime as a plugin. patchoat - .oat file patching app

- .oat file patching app profman - profile manager

- profile manager sigchainlib

simulator

test

tools ahat - Android Heap Analysis Tool

- Android Heap Analysis Tool amm - Actionable Memory Metric. The goal of the actionable memory metric (AMM) is to provide a view of an application's memory use that application developers can track, understand,and control. AMM can be thought of as a Java heap dump augmented with models for non-Java allocations that app developers have some control of.

- Actionable Memory Metric. The goal of the actionable memory metric (AMM) is to provide a view of an application's memory use that application developers can track, understand,and control. AMM can be thought of as a Java heap dump augmented with models for non-Java allocations that app developers have some control of. art_verifier - dex file verifier for host computer. The following command shows how to use it

./out/host/linux-x86/bin/art_verifier --dex-file=./out/target/product/generic_x86_64/system/priv-app/MusicFX/MusicFX.apk --boot-image=./out/target/product/generic_x86_64/system/framework/boot.art --instruction-set=x86_64 --output=x.txt

bisection_search - Bisection Bug Search is a tool for finding compiler optimizations bugs.

- Bisection Bug Search is a tool for finding compiler optimizations bugs. breakpoint-logger - breakpointlogger is a JVMTI agent that lets one set breakpoints that are logged when they are hit.

- breakpointlogger is a JVMTI agent that lets one set breakpoints that are logged when they are hit. build -

- checker - Checker is a testing tool which compiles a given test file and compares the state of the control-flow graph before and after each optimization pass against a set of assertions specified alongside the tests.

- Checker is a testing tool which compiles a given test file and compares the state of the control-flow graph before and after each optimization pass against a set of assertions specified alongside the tests. class2greylist -

- common -

- cpp-define-generator -

- dexanalyze - dex analyzer host tool

- dex analyzer host tool dexfuzz - tool for fuzzing DEX files. Fuzzing is the introduction of subtle changes ("mutations") to a file to produce a new test case

- tool for fuzzing DEX files. Fuzzing is the introduction of subtle changes ("mutations") to a file to produce a new test case dmtracedump -

- golem -

- hiddenapi - This tool iterates over all class members inside given DEX files and modifies their access flags if their signatures appear on one of two lists - greylist and blacklist - provided as text file inputs.

3. bionic

Bionic is mainly a port of the BSD C library to our Linux kernel with the following additions/changes: - no support for locales - no support for wide chars (i.e. multi-byte characters) - its own smallish implementation of pthreads based on Linux futexes - support for x86, ARM and ARM thumb CPU instruction sets and kernel interfaces libc This directory contains the different architecture that is supported to use bionic, namely - ARM (under the arch-arm/) and x86 (under the arch-x86/ directory). In order to understand in detail on how to add functions or port it to different architecture you want to read the file OVERVIEW.TXT under the docs/ folder bionic -

- arch-arm This directory contains bionic libc libraries for ARM processor class cortex-a8 -

- bionic - sources needed to link and load bionic and it includes the functions

- sources needed to link and load bionic and it includes the functions cortex-a9 - contains optimized assembler code for A9 processor- memcpy, memset and strcmp

- contains optimized assembler code for A9 processor- memcpy, memset and strcmp cortex-a15 - contains optimized assembler code for A15 processor- memcpy, memset and strcmp

- contains optimized assembler code for A15 processor- memcpy, memset and strcmp generic - contains assembler code for generic ARM processor - memcpy, memset and strcmp

- contains assembler code for generic ARM processor - memcpy, memset and strcmp include - contains header files

- contains header files krait - contains optimized assembler code for krait processor - memcpy, memset and strcmp

- contains optimized assembler code for krait processor - memcpy, memset and strcmp syscalls - system calls assembler code (autogenerated files) arch-mips This directory contains bionic libc libraries for MIPS processor class bionic - sources needed to link and load bionic and it includes the functions

- sources needed to link and load bionic and it includes the functions include - contains header files

- contains header files string - contains string related functions

- contains string related functions syscalls - system calls assembler code (autogenerated files) arch-x86 This directory contains bionic libc libraries for x86 processor class bionic - sources needed to link and load bionic and it includes the functions

- sources needed to link and load bionic and it includes the functions include - contains header files

- contains header files string - contains string related functions

- contains string related functions syscalls - system calls assembler code (autogenerated files) bionic - contains all the functions available in libc

- contains all the functions available in libc include - contains header files

- contains header files kernel This directory contains 'cleaned' kernel related headers and also tools to 'clean up' normal plain vanilla Linux headers arm-arm - 'clean' ARM Linux headers

- 'clean' ARM Linux headers arm-mips - 'clean' MIPS Linux headers

- 'clean' MIPS Linux headers arm-x86 - 'clean' x86 Linux headers

- 'clean' x86 Linux headers common - 'clean' non-architecture specific Linux headers

- 'clean' non-architecture specific Linux headers tools - contain scripts for generating clean headers (instructions outlined inside README.TXT file) netbsd - functions available from NetBSD

- functions available from NetBSD private - private or non-standard header files specific for Android needs

- private or non-standard header files specific for Android needs stdio - functions for standard I/O

- functions for standard I/O stdlib - functions for standard library functions - exit, tolower, etc

- functions for standard library functions - exit, tolower, etc string - functions for standard string functions

- functions for standard string functions tools - Python scripts containing helper function and syscalls generation

- Python scripts containing helper function and syscalls generation tzcode - functions for timezone functions

- functions for timezone functions unistd - functions for universal standard functions

- functions for universal standard functions upstream-dlmalloc - from README.txt "This directory contains malloc/free routines implemented by Doug Lea (aka dlmalloc). You should not edit these files directly. Make fixesupstream and then pull down the new version of the file."

- from README.txt "This directory contains malloc/free routines implemented by Doug Lea (aka dlmalloc). You should not edit these files directly. Make fixesupstream and then pull down the new version of the file." upstream-freebsd - from README.txt "This directory contains upstream FreeBSD source."

- from README.txt "This directory contains upstream FreeBSD source." upstream-netbsd - from README.txt "This directory contains upstream NetBSD source."

- from README.txt "This directory contains upstream NetBSD source." wchar - string function (not sure what is this for ?)

- string function (not sure what is this for ?) zoneinfo - timezone host data libdl This directory what looks like a stub program that are being used during linking process. The main function of the program is to open a library and read the symbol. The file that contains the main functionality is dlfcn.c under the /bionic/linker/ directory libm Contains Math library. Several architecture are supported inside this directory - ARM, i386, i387, MIPS upstream-freebsd - math library from FreeBSD libstdc++

linker - contains linker code that is used during kernel bootup

- contains linker code that is used during kernel bootup tests - contains test cases for testing the different functions available such as - math, pthread, regex,etc This directory contains utility that is used during linking process. The tool is called Android Dynamic Linker what is does is it assign fix addresses to the library to reduce the size of the library and also increases the loading speed. .

4. bootable

bootloader/legacy This directory is empty diskintaller/editdisklbl - tool to test existing partition with the specified configuration in a file

- tool to test existing partition with the specified configuration in a file recovery This directory contains code for creating recovery program. The code inside shows the different things that needs to be implemented. This can be used as a boilerplate to create your own custom recoveries like the ClockworkMod. applypatch - Applies binary patches to files

- Applies binary patches to files edify - Contains code that parse update scripts. The language is call edify (this is used in conjuction with the updater sub-project)

- Contains code that parse update scripts. The language is call edify (this is used in conjuction with the updater sub-project) etc - contains sample update script (the file is called update-script)

- contains sample update script (the file is called update-script) fonts -

- minadbd - this contains a stripped down version of 'adbd' daemon for adb connection

- this contains a stripped down version of 'adbd' daemon for adb connection minelf - contains source library that is used by the updater sub-project

- contains source library that is used by the updater sub-project minui - contains graphical library to be used by the recovery project.The library are mostly utilized for displaying information

- contains graphical library to be used by the recovery project.The library are mostly utilized for displaying information minzip - library utilized in the recovery project+

- library utilized in the recovery project+ mtdutils - library utilized for reading & writing to the Flash memory

- library utilized for reading & writing to the Flash memory res - contains images that are used as background in the recovery project

- contains images that are used as background in the recovery project testdata - test .zip files for testing the update process

- test .zip files for testing the update process test

tools - library that contains misc function that are used by the recovery project. Some interesting function that allow checking of unclean reboot.

- library that contains misc function that are used by the recovery project. Some interesting function that allow checking of unclean reboot. updater - This contains the executable to run the update script

5. build

The main entry point of the build system resides here - envsetup.sh, if you follow the instruction in source.android.com you will see that the first step before you do anything to build Android is to use the command source build/envsetup.sh

The script will check few things to make sure all the needed application available in the local machine. It also setup the devices that can be built, which is extracted from the directory device

core This directory contains the heart of the build system, it consists of a number of files with the .mk extension (Makefile). The entry point of the build is the main.mk file combo - this directory contains makefile that setup the host for things like - compiler, compiler settings. Architecture specific compiler settings are set here. arch -

- include - architecture specific header file is inside here. The hearder file is included in ALL Android code. tasks - makefiles that contains helper functions

- makefiles that contains helper functions clang libs This directory contain a program which is written to replace the "cp" command to be used in Android. Not sure what is the rationale behind the use of this program. target board - this directory contains configuration for the target device that you are planning to build for. Looking at the content of this directory it looks like it is being used for emulators. The files inside this directory looks similar with the device directory where it contains .mk file for board specifics.

- this directory contains configuration for the target device that you are planning to build for. Looking at the content of this directory it looks like it is being used for emulators. The files inside this directory looks similar with the device directory where it contains .mk file for board specifics. product - contains makefiles for the apps that need to be build security - contains generated keys that are used in normal build process, own keys can be generated using the 'make_key' application tools This directory contains a number of tools that can be used as part of the build process. [need to investigate later whether the tools inside this directory is used as part of the build process - document tools that are used in the build process]. acp - "cp" version from Google apicheck - script to run apicheck application atree - this project is a program for file listing or something like the ls command. (inside out/host/linux-86/bin) check_prereq - (inside out/target/product/<device>/system/bin) droiddoc - contains document templates that are used to generate documentation using Javadoc fs_config - this project is part of the host tools (inside out/host/linux-86/bin) fs_get_stats - contain source for a utility to retrieve file stats releasetools - this project contains python scripts that can be used to sign your .apk, create an OTA file and other release related tasks rgb2565 - this project is to convert image to a 565raw format (inside out/host/linux-86/bin) signapk - this project is to sign your .apk file, the project is written in Java code (inside out/host/linux-86/framework) signtos zipalign - according to the README file The purpose of zipalign is to ensure that all uncompressed data starts with a particular alignment relative to the start of the file. This allows those ::::::::portions to be accessed directly with mmap() even if they contain binary data with alignment restrictions. (inside out/host/linux-86/bin)

6. cts

This directory contains compatibility test suite (http://source.android.com/compatibility/cts-intro.html). The test coverage are broken down into different folders to cover different parts of Android. apps This directory contains applications test suites. The test cases are written in Java and it test different device functionality from application layer such as - USB, sensors, camera, bluetooth, etc cts-usb-accessory - USB accessories mode test case

- USB accessories mode test case CtsVerifier - build - contains makefiles to generate and package the test cases

- contains makefiles to generate and package the test cases development ide/eclipse - contains .sh file to generate the CTS classpath file for Eclipse hostsidetests aadb -

- appsecurity - application security test cases

- application security test cases holo

monkey - monkey test cases

- monkey test cases sample

usb - libs commonutil

deviceutil

json - JSON library

- JSON library runner - contain makefile to run the core tests which resides inside the tests/core/runner

- contain makefile to run the core tests which resides inside the tests/core/runner testserver - http test server

- http test server vogar-expect - according to the README file classes were extracted from the http://code.google.com/p/vogar/ project. Looking at the description of the project it is a command line test utility for Java

- according to the README file classes were extracted from the http://code.google.com/p/vogar/ project. Looking at the description of the project it is a command line test utility for Java wrappedgtest - suite audio_quality -

- pts - tests This directory contains Java test cases testing different kind of things, mostly on features that are available from Java application. acceleration -

- accessibility -

- assets -

- core -

- deviceadmin -

- expectations -

- jni -

- plans -

- ProcessTest -

- res -

- sample

SignatureTest -

- systemAppTest -

- src -

- tests -

- uiautomator -

- vm-tests-tf -





tools This directory contains different kind of tools that are available for you to use. The tools are not used in the build process.

cfassembler - class to generate .class files that are somehow damaged in order to test the dalvik vm verifier.

- class to generate .class files that are somehow damaged in order to test the dalvik vm verifier. cts-api-coverage - Tool that generates a report of what Android framework methods are being called from a given set of APKS

- Tool that generates a report of what Android framework methods are being called from a given set of APKS cts-holo-generation

cts-java-scanner - searches a source directory for native gTests and outputs a list of test classes and methods.

- searches a source directory for native gTests and outputs a list of test classes and methods. cts-java-scanner-doclet -

- cts-native-scanner - scanner of C++ gTest source files

- scanner of C++ gTest source files cts-reference-app-lib - Base Class that provides common functionality for all Reference Application Tests

- Base Class that provides common functionality for all Reference Application Tests cts-xml-generator - class that outputs a test package xml

- class that outputs a test package xml dasm - .d file disassembler and assembler

- .d file disassembler and assembler device-setup - Collect device information on target device

- Collect device information on target device dex-tools - contains the source code and tests for a dex file parser. This folder contains a .project file, it can be imported directly into eclipse as a java project.

- contains the source code and tests for a dex file parser. This folder contains a .project file, it can be imported directly into eclipse as a java project. signature-tools - This project contains the source code and tests for API signature comparison tools. The project is in Java

- This project contains the source code and tests for API signature comparison tools. The project is in Java tradefed-host - CTS Trade Federation, cts-tradefed for short, is the next generation test harness for CTS. cts-tradefed is built on top of the Android Trade Federation test harness.

- CTS Trade Federation, cts-tradefed for short, is the next generation test harness for CTS. cts-tradefed is built on top of the Android Trade Federation test harness. utils -

- vm-tests-tf - Similar to vm-tests except there are few difference files.

7. dalvik





dexdump The "dexdump" tool is intended to mimic "objdump".

dexgen Home of dexgen, the dex code generator project. It provides API for creating dex classes in runtime which is needed e.g. for class mocking. This solution is based on the dx tool and uses its classes extensively.

dexlist List all methods in all concrete classes in one or more DEX files.

docs Dalvik documentation

dx Home of Dalvik eXchange, the thing that takes in class files and reformulates them for consumption in the VM. It also does a few other things; use "dx --help" to see a modicum of self-documentation.

hit This directory contains program to read HPROF file specific to Android. HPROF is a profiler tool in Android. The application in this directory can be run to read a sample .hprof file in the samples directory.

libdex This directory contains .dex file related tools.

opcode-gen This directory contains sets of defined opcodes and instruction formats for Dalvik.

tools This directory contains Dalvik related tools

vm

8. developers

' build -

- ' demos -

- ' docs -

- 'samples -

9. development

apps This directory contains application that are not part of the deployed app in the OS. There are some useful application such as widget builder, etc BluetoothDebug - Bluetooth debugging app

- Bluetooth debugging app BuildWidget - Define a simple widget that shows the Wiktionary "Word of the day."

- Define a simple widget that shows the Wiktionary "Word of the day." CustomLocale - Change locale app that can be automatically called for testing purpose --> adb shell am broadcast -a com.android.intent.action.SET_LOCALE --es com.android.intent.extra.LOCALE en_US

- Change locale app that can be automatically called for testing purpose --> adb shell am broadcast -a com.android.intent.action.SET_LOCALE --es com.android.intent.extra.LOCALE en_US Development - Development system app

- Development system app DevelopmentSettings - Development settings system app

- Development settings system app Fallback - fall back activity that registers itself for common intents which may possibly not otherwise be handled.

- fall back activity that registers itself for common intents which may possibly not otherwise be handled. GestureBuilder - tool to create Gesture

- tool to create Gesture launchperf - launch performance application

- launch performance application NinePatchLab -

- OBJViewer - gles and raw file viewer

- gles and raw file viewer SdkSetup - Entry point for SDK SetupWizard.

- Entry point for SDK SetupWizard. SettingInjectorSample -

- WidgetPreview - widget preview application

build tools This directory contains a number of tools that are used as part of the build process

cmds This directory contains the monkey tool that allows you to inject key events into an app.

docs This directory contains copyright templates

host This directory contains Windows binary files for USB. windows - contains USB drivers for Windows

ide This directory contains IDE specific information/configuration. Eclipse, EMacs, IntelliJ and XCode are the IDEs supported. eclipse - formatter for eclipse

- formatter for eclipse emacs - plugin configuration for emacs for Android development

- plugin configuration for emacs for Android development intellij - Definition for IntelliJ configuration

- Definition for IntelliJ configuration xcode - xcode configuration (not very familiar on what kind of configuration is this as never used xcode before)

libraries From the README.txt - Stereo Camera Libraries for Android. This SDK component contains static libraries for computing the depth map of a pair of stereo images. To use the libraries, simply copy them as static libraries into your project. stereocamera -

ndk This directory contains NDK (Native Development Kit) for Android. This particular directory is not build as part of the Android build process. platforms - contains the sources of the C runtime object files required by the Android NDK toolchains. Contains more information inside README.CRT.TXT

- contains the sources of the C runtime object files required by the Android NDK toolchains. Contains more information inside README.CRT.TXT samples - sample applications on using NDK

- sample applications on using NDK sources -

- tests - contain script to execute all the test cases inside NDK

- contain script to execute all the test cases inside NDK tools - tool o compare headers between Bionic and NDK

perftests

samples This directory contains Android application sample files. There are a lot of sample projects that can be used by developers. AccelerometerPlay - example of using the accelerometer to integrate the device's acceleration to a position using the Verlet method.

- example of using the accelerometer to integrate the device's acceleration to a position using the Verlet method. ActionBarCompat - ActionBar sample

- ActionBar sample Alarm - revised version of the AlarmService functionality included in the ApiDemos sample application

- revised version of the AlarmService functionality included in the ApiDemos sample application AliasActivity -

- AndroidBeamDemo - shows how to use the Android Beam feature introduced in API level 14. This application must be installed on two devices that have NFC capabilities, running Android 4.0 or later.

- shows how to use the Android Beam feature introduced in API level 14. This application must be installed on two devices that have NFC capabilities, running Android 4.0 or later. ApiDemos - The API Demos application includes a variety of small applications that illustrate the use of various Android APIs. It includes samples of: Notifications, Alarms, Progress Dialogs, etc

- The API Demos application includes a variety of small applications that illustrate the use of various Android APIs. It includes samples of: Notifications, Alarms, Progress Dialogs, etc AppNavigation - application navigation

- application navigation BackupRestore - Backup/Restore application illustrates a few different approaches that an application developer can take when integrating with the Android Backup Manager

- Backup/Restore application illustrates a few different approaches that an application developer can take when integrating with the Android Backup Manager BasicGLSurfaceView - basic OpenGL surface view sample

- basic OpenGL surface view sample BluetoothChat - chat app using bluetooth

- chat app using bluetooth BluetoothHDP - sample application that demonstrates how to communicate with a Bluetooth Health Device Profile (HDP) device

- sample application that demonstrates how to communicate with a Bluetooth Health Device Profile (HDP) device BluetoothLeGatt -

- browseable -

- BusinessCard -

- Compass -

- ContactManager -

- ControllerSample -

- CrossCompatibility -

- CubeLiveWallpaper -

- devbytes -

- FixedGridLayout -

- HeavyWeight -

- HelloActivity -

- HelloEffects -

- Home -

- HoneycombGallery -

- JetBoy -

- KeyChainDemo -

- LunarLander -

- MultiResolution -

- MySampleRss -

- NotePad -

- Obb -

- OpenGL -

- RandomMusicPlayer -

- RenderScript -

- RSSReader -

- SampleSyncAdapter -

- SearchableDictionary -

- SimpleJNI -

- SipDemo -

- SkeletonApp -

- Snake -

- SoftKeyboard -

- SpellChecker -

- Spinner -

- SpinnerTest -

- StackWidget -

- Support4Demos -

- Support7Demos -

- Support13Demos -

- SupportAppNavigation -

- TicTacToeLib -

- TicTacToeMain -

- ToyVpn -

- training -

- TtsEngine -

- UiAutomator -

- USB -

- Vault -

- VoicemailProviderDemo -

- VoiceRecognitionService -

- WeatherListWidget -

- WiFiDirectDemo -

- WiFiDirectServiceDiscovery -

- Wiktionary -

- WiktionarySimple -

- XmlAdapters -

scripts Some Google App Engine specific scripts. app_engine_server -

- gdb -

sdk This directory contains .properties file related to SDK, cant figure out what exactly it is used for as there arent that much information inside.

sdk_overlay Overlay resource files that are used for different device frameworks -

- packages -

sys-img

testrunner Utility to run the test cases based on Python. coverage -

- test_defs -

- tests -

tools apkcheck - This directory contains Android APK Checker utitlity.This compares the set of classes, fields, and methods used by an Android application against the published API. It identifies and reports the use of any unpublished members or methods.

- This directory contains Android APK Checker utitlity.This compares the set of classes, fields, and methods used by an Android application against the published API. It identifies and reports the use of any unpublished members or methods. axl - TCP and HTTP tests, the testcase is written in Python.

- TCP and HTTP tests, the testcase is written in Python. elftree -

- emulator -

- etc1tool -

- findunused -

- hosttestlib -

- idegen - automatically generates Android IDE configurations for IntelliJ IDEA and Eclipse. Your IDE should be able to compile everything in a reasonable amount of time with no errors.

- automatically generates Android IDE configurations for IntelliJ IDEA and Eclipse. Your IDE should be able to compile everything in a reasonable amount of time with no errors. labpretest - The labpretest.sh script is designed to emulate a typical automated test lab session. It puts a device into bootloader mode, reboots into bootloader mode, determines device type, erases user cache, flashes a generic userdata image, updates the bootloader image, updates the radio image, updates the system image and reboots, sets up for a monkey run and finally runs a random monkey test. It will repeat this based on an optional parameter(-i) or default to 100 times. It will detect if it is in a low battery situation and wait for it to charge again.

- The labpretest.sh script is designed to emulate a typical automated test lab session. It puts a device into bootloader mode, reboots into bootloader mode, determines device type, erases user cache, flashes a generic userdata image, updates the bootloader image, updates the radio image, updates the system image and reboots, sets up for a monkey run and finally runs a random monkey test. It will repeat this based on an optional parameter(-i) or default to 100 times. It will detect if it is in a low battery situation and wait for it to charge again. line_endings -

- mkstubs - is small tool that takes a given JAR and filters all the private stuff we don't want to expose, e.g.: remove all private members, only include a subset of classes, exclude specific classes, fields or methods.

- is small tool that takes a given JAR and filters all the private stuff we don't want to expose, e.g.: remove all private members, only include a subset of classes, exclude specific classes, fields or methods. recovery_l10n -

- templates - This directory contains Android source code templates for building Android application.

- This directory contains Android source code templates for building Android application. yuv420sp2rgb -





tutorials This directory contain a Notepad tutorial application development tutorial. NotepadCodeLab -

- MoarRam -

- ReverseDebug -

9. device

asus This directory contains device information for Nexus 7 devices.

common This directory contains gps information and also a script that allows you to extract proprietary binary files from your phone to be part of the build process.

generic This directory contains the generic device configuration that is called goldfish. This is the device classification used when building the emulator.

google This directory contains the Android Accessories Kit code. It contains a demokit Android app that allows you to control the ADK board. The ADK firmware can be check out here http://code.google.com/p/microbridge/. There is a good article about this http://romfont.com/2011/05/12/google%E2%80%99s-open-accessory-development-kit-on-standard-arduino-hardware/

lge This directory contains device information for LG devices.

sample This directory contains a full example of writing your own Android platform shared library, without changing the Android framework. It also shows how to write JNI code for incorporating native code into the library, and a client application that uses the library. This example is ONLY for people working with the open source platform to create a system image that will be delivered on a device which will include a custom library as shown here. It can not be used to create a third party shared library, which is not currently supported in Android.

samsung This directory contains Samsung specific configuration



10. docs

source.android.com Contains tutorials, references, and miscellaneous information relating to the Android Open Source Project (AOSP). The current iteration of this site is fully static HTML (notably lacking in javascript and doxygen content), and is and/or was maintained by skyler (illustrious intern under Dan Morrill and assistant to the almighty JBQ).

11. external

aac

android-clat

android-mock Android Mock is a wrapper for EasyMock (2.4) which allows for real Class mocking on an Android (Dalvik) VM. All methods on Android Mock are syntactically equivalent to EasyMock method calls, and will delegate calls to EasyMock, while performing the required transformations to avoid Dalvik VM troubles.

ant-glob

antlr From the project website http://www.antlr.org/

ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages.

apache-harmony Apache Harmony software is a modular Java runtime with class libraries and associated tools.

apache-http HTTP API for Java from Apache

apache-qp

apache-xml From project website http://xml.apache.org/xalan-j/

arduino

astl ASTL (Android STL) is a slimmed-down version of the regular C++ STL.

bison This directory contains the Bison parser generator.

blktrace This directory contains Block IO Tracing. blktrace was integrated into the mainline kernel between 2.6.16 and 2.6.17-rc1. The website http://brick.kernel.dk/snaps/

bluetooth This directory contains project for Bluetooth communication bluez - Bluetooth protocol stack for Linux

- Bluetooth protocol stack for Linux glib - GLib is the low-level core library that forms the basis for projects such as GTK+ and GNOME. It provides data structure handling for C, portability wrappers, and interfaces for such runtime functionality as an event loop, threads, dynamic loading, and an object system.

- GLib is the low-level core library that forms the basis for projects such as GTK+ and GNOME. It provides data structure handling for C, portability wrappers, and interfaces for such runtime functionality as an event loop, threads, dynamic loading, and an object system. hcidump - Bluetooth analyzer project

bouncycastle This directory contains ported version of Bouncycastle.org encryption project. The document in patches/README outlined the changes made to use it in Android

bsdiff This directory contains bsdiff and bspatch project. These are tools for building and applying patches to binary files. The project can be found in http://www.daemonology.net/bsdiff/.

bzip2 This directory contains bzip-1.0.6 from http://www.bzip.org/. According to the RADME.android file no changes were made

ceres-solver

checkpolicy

chromium This directory contains the Chromium project.

chromium-libpac

chromium_org

chromium-trace

clang This directory contains Clang project. This is a compiler front-end for the C family of languages (C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM compiler infrastructure project.

compiler-rt

dexmaker

dhcpcd This is a DHCP client daemon project.

dnsmasq This directory contains the Dnsmasq project - a lightweight, easy to configure DNS forwarder and DHCP server - http://thekelleys.org.uk/dnsmasq/doc.html.

droiddriver

doclava This directory contains the Doclava project - a custom Javadoc doclet used to generate documentation. Project page for this http://code.google.com/p/doclava/

dropbear This directory contains Dropbear, a smallish SSH 2 server and client.

e2fsprogs Is a set of utilities for maintaining the ext2, ext3 and ext4 file systems.

easymock This directory contains easymoch project - a Java library that provides an easy way to use Mock Objects in unit testing with JUnit and TestNG. Project page - http://sourceforge.net/projects/easymock/

eclipse-basebuilder

eclipse-windowbuilder

eigen

elfutils This directory contains varieties of tools and libraries that are related to ELF file.

embunit This directory contains embunit - a unit testing framework for Embedded C System. Project page - http://sourceforge.net/projects/embunit/

emma This directory contains .....

esd

expat This directory contains Expat, a C library for parsing XML, written by James Clark. Expat is a stream-oriented XML parser.

eyes-free

fdlibm This directory contains FDLIBM (Freely Distributable LIBM). It is a C math library for machines that support IEEE 754 floating-point arithmetic. In this release, only double precision is supported.

flac This directory contains the source for FLAC project - Free Lossless Audio Codec - http://libzplay.sourceforge.net/FLAC.html.

freetype' This directory contains code for Freetype project http://freetype.sourceforge.net/. FreeType 2 is a software font engine that is designed to be small, efficient, highly customizable, and portable while capable of producing high-quality output (glyph images).

fsck_msdos This directory contains MS-DOS file system check code.

ganymed-ssh2

gcc-demangle

genext2fs genext2fs generates an ext2 filesystem as a normal (non-root) user. It does not require you to mount the image file to copy files on it, nor does it require that you become the superuser to make device nodes.

giflib This contains the GIF library

google-diff-match-patch

grub This is GNU GRUB, the GRand Unified Bootloader. GRUB is intended to provide important bootloader features that are missing from typical personal computer BIOSes

gtest Google's framework for writing C++ tests on a variety of platforms (Linux, Mac OS X, Windows, Windows CE, Symbian, and etc).

guava Guava-libraries are a grab bag of utility libraries published by Google as open source, including among other things the Google collections libraries.

hamcrest HarfBuzz, an OpenType Layout engine library.

harfbuzz

harfbuzz_ng

hyphenation Hyphen - hyphenation library to use converted TeX hyphenation patterns

icu4c ICU is a mature, widely used set of C/C++ and Java libraries providing Unicode and Globalization support for software applications - http://site.icu-project.org/

iproute2 This directory contains iproute2, it is a collection of utilities for controlling TCP / IP networking and traffic control in Linux http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2

ipsec-tools This directory contains IPsec-Tools project, it is a port of KAME's IPsec utilities to the Linux-2.6 IPsec implementation. Project website http://ipsec-tools.sourceforge.net/

iptables This directory contains iptables project, it is a user space application program that allows a system administrator to configure the tables provided by the Linux kernel firewall

iputils

jack

javasqlite This directory contains the Java JDBC wrapper project for SQLLite.

javasisst This directory contains Javassist project. Javassist (JAVA programming ASSISTant) makes Java bytecode manipulation simple. It is a class library for editing bytecodes in Java; it enables Java programs to define a new class at runtime and to modify a class file when the JVM loads it.

jdiff This directory contains JDiff Doclet project. The JDiff doclet is used to generate a report describing the difference between two public Java APIs. Project page http://sourceforge.net/projects/javadiff

jhead This directory contains the jhead project. jhead is an Exif Jpeg header manipulation tool. Project website http://www.sentex.net/~mwandel/jhead/

jmdns

jmonkeyengine

jpeg This directory contains project for JPEG image compression and decompression.

jsilver This directory contains Java wrapper project for the ClearSilver project - http://www.clearsilver.net/. ClearSilver is a fast, powerful, and language-neutral HTML template system.

jsr305 This directory contains the JSR 305 specification implementation. JSR 305 is an Annotations for Software Defect Detection in Java. Project website http://code.google.com/p/jsr-305/





junit This directory contains JUnit project. This project is a Java testing framework, project website http://www.junit.org

kernel-headers This directory contains header files for the Linux Kernel.

libcap-ng

libffi This directory contains libffi project. The libffi library provides a portable, high level programming interface to various calling conventions. This allows a programmer to call any function specified by a call interface description at run time. Project website http://sourceware.org/libffi/

libgsm This directory contains GSM 06.10 13 kbit/s RPT/LTP implementation. According to the README: ......we are publishing an implementation of the European GSM 06.10 provisional standard for full-rate speech transcoding, prI-ETS 300 036, which uses RPE/LTP (residual pulse excitation/long term prediction) coding at 13 kbit/s

liblzf This directory contains liblzf project. This project is an extremely fast compression algorithm. Project website http://software.schmorp.de/pkg/liblzf

libmtp

libnfc-nci

libnfc-nxp This directory contains NFC library from NXP Semiconductors.

libnl-headers This directory contains network related library. [ Not sure what this project do ?? ]

libogg

libpcap This directory contains source code for libpcap, a system-independent interface for user-level packet capture. libpcap provides a portable framework for low-level network monitoring. Applications include network statistics collection, security monitoring, network debugging,etc. Project website http://www.tcpdump.org

libphonenumber This directory contains Google's phone number handling library. Project website http://code.google.com/p/libphonenumber/

libpng This directory contains library source code for manipulating .png file format.

libppp

libselinux

libsepol

libusb

libusb-compat

libvorbis

libvpx

libxml2 This directory contains source library for manipulating XML.

libxslt This directory contains source code for XSLT toolkit. This project is part of the XML toolkit from the GNOME project. Project website http://xmlsoft.org/XSLT/

libyuv

linux-tools-perf

littlemock

llvm This directory contains the LLVM project. LLVM project is a Low Level Virtual Machine, a toolkit for the construction of highly optimized compilers,optimizers, and runtime environments. There is an interesting read inside the README.android file that shows some of the issues on the reason why Google cant push to llvm.org upstream and also some indication on how to sync to upstream.

lzma

marisa-trie

markdown This directory contains the Markdown project. Markdown is a text-to-HTML conversion tool for web writers. Markdown allows you to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML). Project page https://github.com/trentm/python-markdown2

mdnsresponder

mesa3d This directory contains Mesa 3D project. Mesa is an open-source implementation of the OpenGL specification - a system for rendering interactive 3D graphics. Project website http://www.mesa3d.org/

mksh This directory contains the minimum implemention of the mkshrc application for Android.

mockito

mockwebserver This directory contains a library for testing HTTP and HTTPS clients. Project page http://code.google.com/p/mockwebserver/

mp4parser

mtpd This directory contains ????

naver-fonts

netcat From README file: Netcat is a simple Unix utility which reads and writes data across network connections, using TCP or UDP protocol. It is designed to be a reliable "back-end" tool that can be used directly or easily driven by other programs and scripts. 

netperf This directory contains Hewlett Packard netperf tool. According to the project page http://www.netperf.org/netperf/ - Netperf is a benchmark that can be use to measure various aspect of networking performance.

neven There isnt much information can be found inside this directory about the project. Reading through the source code and also the filenames it looks like a face recognition library.

nist-pkits

nist-sip This directory contains code for VOIP implementation

noto-fonts

oauth This directory contains code for the oauth authentication project code.

objenesis

okhttp

opencv This directory contains an optimized port of OpenCV for Android

openfst

openssh

openssl This directory contains OpenSSL project code for Android. The readme.android file contains information on how to port the latest version of OpenSSL

oprofile According to the README file This is an alpha release version of oprofile, a transparent low-overhead system-wide profiler.

pixman

ppp This directory contains code for the ppp protocol

proguard This directory contains ProGuard code. ProGuard is a Java class file shrinker, optimizer, obfuscator, and preverifier

protobuf This directory contains Protobuf code. Protobuf is a Google's data interchange format project. Link to the project page - http://code.google.com/apis/protocolbuffers/

qemu This directory contains the QEMU project ( http://wiki.qemu.org/Main_Page ).

qemu-pc-bios This project has the source code to build two binaries: bios.bin and vgabios-cirrus.bin, which are required for x86 emulation in the Android emulator: platform/external/qemu.

regex-re2

replicaisland

safe-iop This directory contains source code for the safe-iop project ( http://code.google.com/p/safe-iop/ ). This library provides a collection of (macro-based) functions for performing safe integer operations across platform and architecture with a straightforward API.

scrypt

sepolicy

sfntly

sil-fonts

skia Skia ( http://code.google.com/p/skia/ ) is a complete 2D graphic library for drawing Text, Geometries, and Images. Features include: 3x3 matrices w/ perspective, antialiasing, transparency, filters, shaders, xfermodes, maskfilters, patheffects.

smack

smali

sonivox Sonivox is an embedded audio synthesis project, it contains source code as well binary files for the music. There is quite a lot of documentation inside the /docs folder

speex Project website http://www.speex.org/ according to their website

Speex is an Open Source/Free Software patent-free audio compression format designed for speech. The Speex Project aims to lower the barrier of entry for voice applications by providing a free alternative to expensive proprietary speech codecs. Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs. Finally, Speex is part of the GNU Project and is available under the revised BSD license.

sqlite Project website http://www.sqlite.org/ according to their website

SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world. The source code for SQLite is in the public domain

srec SREC embedded speech recognition engine. There is a doc/ folder containing few .pdf documentation. On reading the documentation the library is from a company NUANCE PROFESSIONAL SERVICES

srtp Provides an implementation of the Secure Real-time Transport Protocol (SRTP), the Universal Security Transform (UST), and a supporting cryptographic kernel. From the documentation it shows that this project was from Cisco

stlport STLport is a full ANSI C++ Standard library. Project website https://sourceforge.net/project/showfiles.php?group_id=146814

strace Strace 4.0, a system call tracer for SunOS 4.x, Linux, System V release 4, Solaris 2.x and Irix 5.x. Project website - http://www.liacs.nl/~wichert/strace/

stressapptest

svox From the documentation

SVOX Pico system is a software solution aimed at enabling Text-to-Speech (TTS) functionalities in low CPU/memory platforms. The Pico core system will be deployed as a set of libraries accessible through an API available to application developers. While benefitting from SVOX knowhow and lessons learned, SVOX Pico is an entirely new TTS system designed from scratch and coded in native ANSI-C. This document describes the Pico core system in terms of the underlying design principles, its architecture and main components, and some guidelines for developers who would like to extend Picos functionality.

http://www.svox.com/ (website redirected to Nuance Professional Services website)

tagsoup Project website http://home.ccil.org/~cowan/XML/tagsoup/, from the website

This is the home page of TagSoup, a SAX-compliant parser written in Java that, instead of parsing well-formed or valid XML, parses HTML as it is found in the wild: poor, nasty and brutish, though quite often far from short. TagSoup is designed for people who have to process this stuff using some semblance of a rational application design. By providing a SAX interface, it allows standard XML tools to be applied to even the worst HTML. TagSoup also includes a command-line processor that reads HTML files and can generate either clean HTML or well-formed XML that is a close approximation to XHTML.

tcpdump From the README file

This directory contains source code for tcpdump, a tool for network monitoring and data acquisition. This software was originally developed by the Network Research Group at the Lawrence Berkeley National Laboratory. The original distribution is available via anonymous ftp to ftp.ee.lbl.gov, in tcpdump.tar.Z. More recent development is performed at tcpdump.org, http://www.tcpdump.org/

tinyalsa From the README file

A small library to interface with ALSA in the Linux kernel. The aims are: Provide a basic pcm and mixer API

If it's not absolutely needed, don't add it to the API

Avoid supporting complex and unnecessary operations that could be dealt with at a higher level

tinycompress

tinyxml From readme.txt file

In brief, TinyXml parses an XML document, and builds from that a Document Object Model (DOM) that can be read, modified, and saved.

tinyxml2

tremolo From http://wss.co.uk/pinknoise/tremolo/

Tremolo is an ARM optimised version of the Tremor lib from xiph.org. For those that don't know, the Tremor lib is an integer only library for doing Ogg Vorbis decompression.

v8 Javascript engine from Google

valgrind Project website http://www.valgrind.org,from the documentation:

The Valgrind tool suite provides a number of debugging and profiling tools that help you make your programs faster and more correct. The most popular of these tools is called Memcheck. It can detect many memory-related errors that are common in C and C++ programs and that can lead to crashes and unpredictable behaviour

webkit Project website http://www.webkit.org from the website:

WebKit is an open source web browser engine. WebKit is also the name of the Mac OS X system framework version of the engine that's used by Safari, Dashboard, Mail, and many other OS X applications. WebKit's HTML and JavaScript code began as a branch of the KHTML and KJS libraries from KDE.

webp Project website - http://code.google.com/speed/webp, according to README file:

WEBP decoder: libwebpdecode.so is a simple library for decoding WEBP image files.

webrtc Project website - http://www.webrtc.org/, from the website

WebRTC is a free, open project that enables web browsers with Real-Time Communications (RTC) capabilities via simple Javascript APIs. Our mission: To enable rich, high quality, RTC applications to be developed in the browser via simple Javascript APIs and HTML5.

wpa_supplicant_8 Similar to wpa_supplicant_6 but the version for hostapd is also older (??)

xmlwriter Inside this folder there is only 1 file XMLWriter.java and the authors website is http://jheer.org

xmp_toolkit

yaffs2 Project website - http://www.yaffs.net, from the website

YAFFS (Yet Another Flash File System) is now in its second generation and provides a fast robust file system for NAND and NOR Flash. It is widely used with Linux and RTOSs, in consumer devices.

zlib Project website - http://zlib.net/, from the website

zxing

A Massively Spiffy Yet Delicately Unobtrusive Compression Library

12. frameworks

av camera -

- cmds -

- drm -

- include -

- libvideoeditor -

- media -

- services -

- tools - base api - contains xml files with information about Java classes

- contains xml files with information about Java classes cmds - contains .mk (makefile) files with Dalvik heap information am - contains the am utility source

- contains the am utility source app_process - application for launch Dalvik app

- application for launch Dalvik app backup - reading the source it looks like a backup utility (?)

- reading the source it looks like a backup utility (?) bmgr - Backup Manager java application

- Backup Manager java application bootanimation - contains the boot animation code that normally we see when starting up our phone

- contains the boot animation code that normally we see when starting up our phone bu - backup utility written in Java

- backup utility written in Java content -

- ime -

- input - utility helper for sending key events to device

- utility helper for sending key events to device interrupter -

- pm - package manager utility for Java classes

- package manager utility for Java classes requestsync -

- screencap - screen capture utility

- screen capture utility svc - Java based service command utility

- Java based service command utility wm - core - contains system Java API such as database, bluetooth, package manager, speech, etc. This directory contains both Java and C/C++ code for the API java - Java code containing system API

- Java code containing system API jni - JNI code for the system API

- JNI code for the system API res - Resource files for system API

- Resource files for system API tests- Java unit test for system API data - contains resources for internal application such as - fonts, sounds, videos, etc etc - permission files for hardware specific resources

- permission files for hardware specific resources fonts - fonts file

- fonts file keyboards - keyboard and USB based device keyboard mapping files

- keyboard and USB based device keyboard mapping files sounds - sound files

- sound files videos- video files docs - Android documentation

- Android documentation drm - according to http://developer.android.com/reference/android/drm/package-summary.html Provides classes for managing DRM content and determining the capabilities of DRM plugins (agents). java - programming interface for the DRM framework

- programming interface for the DRM framework jni - native interface for DRM framework graphics - according to http://developer.android.com/reference/android/graphics/package-summary.html - provides low level graphics tools such as canvases, color filters, points, and rectangles that let you handle drawing to the screen directly. java -

- jni -

- tests - include - include files for most of the internal services android_runtime - header files for android runtime process

- header files for android runtime process androidfw -

- private - from README "This folder contains private include files. These include files are part of the private implementation details of various framework components."

- from README "This folder contains private include files. These include files are part of the private implementation details of various framework components." storage - storage header files

keystore - implementation of KeyStore (secured storage for key-value pairs). java -

- tests -

libs - additional library available to be used by the internal services androidfw -

- hwui - HW graphics library

- HW graphics library storage - storage library

- storage library usb - wrapper class for the USB Manager to support USB accessories.

location - java -

- lib -

- tests -

media - media framework related API and libraries java android/media - from package.html "Provides classes that manage various media interfaces in audio and video. The Media APIs are used to play and, in some cases, record media files. This includes audio (e.g., play MP3s or other music files, ringtones, game sound effects, or DTMF tones) and video (e.g., play a video streamed over the web or from local storage)."

- from package.html "Provides classes that manage various media interfaces in audio and video. The Media APIs are used to play and, in some cases, record media files. This includes audio (e.g., play MP3s or other music files, ringtones, game sound effects, or DTMF tones) and video (e.g., play a video streamed over the web or from local storage)." android/mtp - from package.html "Provides APIs that let you interact directly with connected cameras and other devices, using the PTP (Picture Transfer Protocol) subset of the MTP (Media Transfer Protocol) specification. Your application can receive notifications when devices are attached and removed, manage files and storage on those devices, and transfer files and metadata from the devices." jni - native layer interface for camera,audio,video, etc services (native layer for services in android/ folder) audioeffect -

- mediaeditor -

- soundpool - mca - effect -

- filterfw -

- filterpacks -

- samples -

- tests - tests -

native android -

- graphics -

nfc-extras - Provides additional methods for Card Emulation and management java -

- extras -

obex - Bluetooth file transfer implementation opengl - according to README This directory contains OpenGL ES and EGL extension specifications that have been or are being defined for Android. java - contains wrapper Java source packages - Contains built in application BackupRestoreConfirmation - Backup/restore confirmation dialog

- Backup/restore confirmation dialog DefaultContainerService - Service copies a downloaded apk to a file passed in as a ParcelFileDescriptor

- Service copies a downloaded apk to a file passed in as a ParcelFileDescriptor DocumentsUI -

- ExternalStorageProvider -

- FakeOemFeatures -

- FusedLocation -

- Keyguard -

- PrintSpooler -

- services -

- InputDevices -

- SettingsProvider - Settings application provider

- Settings application provider SharedStorageBackup - external storage backup

- external storage backup Shell -

- SystemUI - Internal System Settings UI

- Internal System Settings UI VpnDialogs - VPN dialog

- VPN dialog WAPPushManager - from the source code "The WapPushManager service is implemented to process incoming WAP Push messages and to maintain the Receiver Application/Application ID mapping." policy - implementation (Java) of some of the security that are build inside Android (password unlocker, lock pattern, etc)

- implementation (Java) of some of the security that are build inside Android (password unlocker, lock pattern, etc) samples - training - sax - SAX implementation (Java)

- SAX implementation (Java) services - Android internal service implementation eg:- power manager, sensor service, surface flinger, etc. common_time -

- input -

- java -

- jni -

- tests - telephony - telephony sample implementation including RIL (Radio Interface Layer).

- telephony sample implementation including RIL (Radio Interface Layer). test-runner - unit test mock for some of the internal API (Java) src -

- tests -

tests - test cases for most of the internal services (Java) AccessoryDisplay -

- ActivityTests -

- AppLaunch -

- appwidgets -

- Assistant -

- backup -

- BandwidthTests -

- BatteryWaster -

- BiDiTests -

- BrowserPowerTest -

- BrowserTestPlugin -

- CanvasCompare -

- Camera2Tests -

- Compatibility -

- CoreTests -

- DataIdleTest -

- DpiTest -

- FixVibrateSetting -

- FrameworkPerf -

- GridLayoutTest -

- HugeBackup -

- HwAccelerationTest -

- ImfTest -

- LargeAssetTest -

- LocationTracker -

- LotsOfApps -

- LowStorageTest -

- MemoryUsage -

- permission -

- RenderScriptTests -

- SerialChat -

- SharedLibrary -

- SmokeTest -

- SmokeTestApps -

- SslLoad -

- StatusBar -

- TileBenchmark -

- touchlag -

- TransformTest -

- TransformTest -

- TtsTests -

- WebViewTests - tools - internal tools that are used by Android aapt -

- aidl -

- layoutlib -

- obbtool -

- orientationplot -

- preload -

- validatekeymaps -

- velocityplot - wifi - http://developer.android.com/reference/android/net/wifi/package-summary.html Provides classes to manage Wi-Fi functionality on the device. compile the directory contains few sub-directory - libbcc (A Versatile Bitcode Execution Engine for Mobile Devices), linkloader (this is a plugin for LLVM), slang (compiler for Renderscript language) libbcc -

- mclinker -

- slang -





ex carousel - UI carousel implementation that is used internally by Android

- UI carousel implementation that is used internally by Android camera2 -

- chips -

- common - common class (Java) that are used internally by Android such as - contacts, widgets, io, etc

- common class (Java) that are used internally by Android such as - contacts, widgets, io, etc photoviewer -

- variablespeed - media player specific classes

- media player specific classes widget -

mff

ml bordeaux -

native build -

- cmds -

- data -

- include -

- libs -

- opengl -

- services -

opt calendar - helper classes for Calendar app

- helper classes for Calendar app carddav -

- colorpicker -

- datetimepicker -

- emoji - emoticons helper function

- emoticons helper function inputmethodcommon - input functionality function helper

- input functionality function helper mailcommon - subset of mail helper function

- subset of mail helper function mms -

- net -

- photoviewer -

- telephony -

- timezonepicker -

- vcard - vcard function helper

rs cpp -

- cpu_ref -

- driver -

- java -

- scriptc -

- server -

- tests -

support support UI classes for different Android version tests -

- v4 -

- v7 -

- v8 -

- v13 -

testing androidtestlib -

- app-tests -

- uiautomator -

- uiautomator_test_libraries -

uiautomator api -

- cmds -

- core -

- samples -

- testrunner -

- utils -





volley Fast networking library for Android. A very good video to introduce and learn about the library https://www.youtube.com/watch?v=yhv8l9F44qo src - source for the volley library

- source for the volley library tests - test cases for volley

webview chromium -

wilhelm doc -

- include -

- src -

- tests -

- tools -



14. hardware

akm AK8975_FS - broadcom Broadcom wireless device drivers (binary format). libbt -

- wlan - invensense Invsense Sensors source code libsensors -

- libsensors_iio -

- mlsdk - libhardware libsensors - MPL sensors family

- MPL sensors family mlsdk - ML Inverse family SDK libhardware contain Android HAL library function, the following blog post explain nicely about HAL http://sujaiantony.wordpress.com/2012/06/25/an-android-101-hardware-and-hal/ include - include files for Android HAL for different devices

- include files for Android HAL for different devices modules - from README.android "Default (and possibly architecture dependents) HAL modules go here, libhardware.so eventually should contain *just* the HAL hub (hardware.c), everything in it should be rewritten as modules." audio - audio hardware HAL

- audio hardware HAL audio_remote_submix -

- gralloc - Graphics Memory Allocator Module

- Graphics Memory Allocator Module hwcomposer - from README.android "Skeleton for the "hwcomposer" HAL module."

- from README.android "Skeleton for the "hwcomposer" HAL module." local_time -

- nfc - Default NFC HW HAL

- Default NFC HW HAL nfc_nci -

- power -

- usbaudio - tests - test code to test the hardware modules libhardware_legacy legacy hardware HAL implementation audio -

- include -

- power -

- qemu -

- qemu_tracing -

- uevent -

- vibrator -

- wifi - msm7k - Qualcomm MSM7000 hardware source code boot - contains library map location

- contains library map location dspcrashd - daemon to monitor /dev/dsp_debug

- daemon to monitor /dev/dsp_debug libaudio - audio library

- audio library libaudio-qdsp5v2 -

- libaudio-qsd8k -

- libcamera -

- libcopybit -

- libgralloc -

- libgralloc-qsd8k -

- liblights -

- librpc -

- libstagefrighthw - qcom Qualcomm specific code for media and GPS audio -

- bt -

- camera -

- display -

- gps -

- ' keymaster -

- media -

- msm8960 -

- power -

- sensors -

- wlan - ril Radio Inteface Layer (RIL) interface and sample interface. RIL is the layer for radio based communication like the phone call include - RIL include files

- RIL include files libril - library used for RIL

- library used for RIL mock-ril - Mock up RIL

- Mock up RIL reference-ril - RIL reference implementation code

- RIL reference implementation code rild - RIL daemon samsung_slsi exynos5 - ti Texas Instruments OMAP3 and OMAP4 hardware source code - media framework, camera, security,etc omap3 -

- omap4xxx -

- omap4-aah - left over code from Android At Home project

- left over code from Android At Home project wlan -

- wpan -



15. libcore

benchmarks

crypto

dalvik VM runtime for Android dex

dom Java test classes for DOM expectations Contains information about the test cases harmony-tests

include Some C/C++ include files that used for Array and String handling json JSON based Java implementation libdvm luni Contains test source code for loading .jar and .dex files support Contains support class file for testing Dalvik xml XML pull and push implementation

16. libnativehelper

include

17. ndk

build Contains build scripts and helper files for building the NDK awk - a number of awk scripts that helps to extract information from an application's manifest - i.e. AndroidManifest.xml

- a number of awk scripts that helps to extract information from an application's manifest - i.e. AndroidManifest.xml core - makefile that are used to build the NDK

- makefile that are used to build the NDK gmsl - GNU Make Standard Library

- GNU Make Standard Library tools - from DEV-SCRIPTS-USAGE.TXT "directory contains a number of shell scripts, which we will call the "dev-scripts", that are only used to develop the NDK itself, i.e. they are un-needed when using ndk-build to build applicative native code." docs Contains NDK related documentation sources NDK source code and library source android - contains code for cpufeatures and sources of the special libthread_db that will be statically linked against gdbserver binary

- contains code for cpufeatures and sources of the special libthread_db that will be statically linked against gdbserver binary cpufeatures -

- cxx-stl contains C++ standard template library source host-tools contains varieties of tools for host machine (Linux) make-3.81 - make build source

- make build source nawk-20071023 - awk source code

- awk source code ndk-stack - tool that allows you to filter stack traces as they

- tool that allows you to filter stack traces as they sed-4.2.1 - sed tool source code

- sed tool source code toolbox - A brain-dead 'echo' toolbox program for Windows third_party tests from README file "This directory contains scripts and sources to perform automated testing of the NDK. Before making a new NDK release, please run tests/run-tests.sh to ensure that everything is working properly." awk - contains test files for testing awk scripts

- contains test files for testing awk scripts build - contains scripts for NDK test cases

- contains scripts for NDK test cases device - contains test cases for NDK - such as cpu features, libraries

- contains test cases for NDK - such as cpu features, libraries standalone - standalone simple test cases toolchains Build file for building the toolchain both for x86 and ARM based platform arm-linux-androideabi-4.4.3 - prepare the NDK to build with the arm-eabi-4.4.0 toolchain

- prepare the NDK to build with the arm-eabi-4.4.0 toolchain arm-linux-androideabi-4.6 -

- arm-linux-androideabi-4.7 -

- arm-linux-androideabi-4.8 -

- arm-linux-androideabi-clang3.1 -

- arm-linux-androideabi-clang3.2 -

- llvm-3.1 -

- llvm-3.2 -

- mipsel-linux-android-4.4.3 -

- mipsel-linux-android-4.6 -

- mipsel-linux-android-4.7 -

- mipsel-linux-android-4.8 -

- mipsel-linux-android-clang3.1 -

- mipsel-linux-android-clang3.2 -

- x86-4.4.3 - prepare the NDK to build with the x86-4.4.3 toolchain

- prepare the NDK to build with the x86-4.4.3 toolchain x86-4.6 -

- x86-4.7 -

- x86-4.8 -

- x86-clang3.1 -

- x86-clang3.2 -

18. packages

apps Standard Android application that are available as part of the AOSP - Camera, SMS, Dialer, Launcher, etc BasicSmsReceiver - Very basic SMS application

- Very basic SMS application Bluetooth - Bluetooth application

- Bluetooth application Browser - Browser application

- Browser application Calculator - Calculator application

- Calculator application Calendar - Calendar application

- Calendar application Camera - Camera application

- Camera application CellBroadcastReceiver - 2 main services . CellBroadcastConfigService --> This service manages enabling and disabling ranges of message identifiers that the radio should listen for. It operates independently of the other services and runs at boot time and after exiting airplane mode and CellBroadcastAlertService - This service manages enabling and disabling ranges of message identifiers that the radio should listen for. It operates independently of the other services and runs at boot time and after exiting airplane mode.

- 2 main services . CellBroadcastConfigService --> This service manages enabling and disabling ranges of message identifiers that the radio should listen for. It operates independently of the other services and runs at boot time and after exiting airplane mode and CellBroadcastAlertService - This service manages enabling and disabling ranges of message identifiers that the radio should listen for. It operates independently of the other services and runs at boot time and after exiting airplane mode. CertInstaller - The main class for installing certificates to the system keystore. It reacts to the INSTALL_ACTION intent

- The main class for installing certificates to the system keystore. It reacts to the INSTALL_ACTION intent Contacts - Contacts application

- Contacts application DeskClock - DeskClock application

- DeskClock application Email - Email application

- Email application Exchange - Exchange application

- Exchange application Gallery - Gallery application

- Gallery application Gallery2 - Gallery 3D application

- Gallery 3D application GoogleLoginService -

- GoogleServiceFramework -

- HTMLViewer - Wraps a WebView widget within an Activity. When launched, it uses the URI from the intent as the URL to load into the WebView.

- Wraps a WebView widget within an Activity. When launched, it uses the URI from the intent as the URL to load into the WebView. KeyChain - Security key chain application

- Security key chain application Launcher2 - Android main launcher

- Android main launcher LegacyCamera -

- Mms - Mms application

- Mms application Music - Music player

- Music player MusicFX - MusicMX Player

- MusicMX Player Nfc - NFC related application

- NFC related application OneTimeInitializer -

- PackageInstaller - Service available internally in Android. This activity is launched when a new application is installed via side loading

- Service available internally in Android. This activity is launched when a new application is installed via side loading Phone - Phone application

- Phone application Phonesky -

- Protips - Widget appears on your home screen to provide helpful tips.

- Widget appears on your home screen to provide helpful tips. Provision - application that sets up provisioning.

- application that sets up provisioning. QuickSearchBox - Quick search box application

- Quick search box application Settings - Settings application

- Settings application SetupWizard -

- SmartCardService -

- SoundRecorder - SoundRecorder application

- SoundRecorder application SpareParts - parts updater such as battery,3G, etc

- parts updater such as battery,3G, etc SpeechRecorder - SpeechRecorder application

- SpeechRecorder application Stk - SIM Toolkit application

- SIM Toolkit application Tag - An Activity which handles a broadcast of a new tag that the device just discovered.

- An Activity which handles a broadcast of a new tag that the device just discovered. VideoEditor - Video editor application

- Video editor application VoiceDialer - Voice dialer application experimental Experimental apps that are not part of the AOSP such as RPC, Bugreport, Security tool, etc BugReportSender - from README.txt "A utility (currently hosted on Bazaar) to share bugreports from the /sdcard to any recipient (usually via Gmail)"

- from README.txt "A utility (currently hosted on Bazaar) to share bugreports from the /sdcard to any recipient (usually via Gmail)" Bummer -

- CameraPreviewTest - from README.txt "A small test app to exercise the camera in various modes in much the same way that GTalk video chat does."

- from README.txt "A small test app to exercise the camera in various modes in much the same way that GTalk video chat does." DreamTheater - Sample application on using DreamTheater

- Sample application on using DreamTheater ExampleImsFramework - from README.txt "Demonstrates how to implement an IMS framework on top of Android."

- from README.txt "Demonstrates how to implement an IMS framework on top of Android." LoaderApp -

- NotificationLog -

- NotificationShowcase -

- procstatlog - This program is as dumb as possible -- it reads a whole bunch of data from /proc and reports when it changes.

- This program is as dumb as possible -- it reads a whole bunch of data from /proc and reports when it changes. RpcPerformance - from README.txt "A small test utility to run certain low-level microbenchmarks (particularly related to IPC and RPC performance, such as no-op Binder calls and certain file I/O operations).

- from README.txt "A small test utility to run certain low-level microbenchmarks (particularly related to IPC and RPC performance, such as no-op Binder calls and certain file I/O operations). StrictModeTest - from README.txt "A small test utility to intentionally violate StrictMode in different ways, and let you try out the various penalties." providers Contains content providers for the different data available in the framework ApplicationsProvider - Fetches the list of applications installed on the phone to provide search suggestions.

- Fetches the list of applications installed on the phone to provide search suggestions. CalendarProvider - Calendar provider

- Calendar provider ContactsProvider - Contacts provider

- Contacts provider DownloadProvider - Download provider

- Download provider DrmProvider - DRM provider

- DRM provider MediaProvider - Media provider

- Media provider PartnerBookmarksProvider -

- TelephonyProvider - Telephones provider

- Telephones provider UserDictionaryProvider - Dictionary provider

inputmethods Contains implementation (part of the framework) specifically for writing input method components. LatinIME -

- OpenWnn - from README.txt "OpenWnn is a IME(Input Method Editor) package which works on Android's IMF(Input Method Framework). This version contains Japanese IME."

- from README.txt "OpenWnn is a IME(Input Method Editor) package which works on Android's IMF(Input Method Framework). This version contains Japanese IME." PinyinIME- another implementation of the input method components

screensavers Basic -

- PhotoTable -

- WebView -

wallpapers Standard AOSP wallpaper Basic

Galaxy4

HoloSpiral

LivePicker

MagicSmoke

MusicVisualization

NoiseField

PhaseBeam

19. pdk

apps

build

20. prebuilts

clang darwin-x86

linux-x86

devtools adt

notices

repository

tools

eclipse deltapack

platform

gcc darwin-x86

linux-x86

misc android-arm Contains prebuilt gdbserver and QEMU kernel android-mips

android-x86 x86 based QEMU kernel for emulator common Common Java open source project that are used during build process darwin-x86

linux-x86 Contains GCC toolchains for compiling Android along with several open source projects linux-x86_64

windows 32bit Windows specific files and libraries ndk

qemu-kernel arm

mips

x86 sdk current

renderscript

tools tools common

darwin-x86

darwin-x86_64

gcc-sdk

linux-x86

linux-x86_64

windows

windows-x86_64



21. sdk

This directory contains lots of apps that are not part of operating system. There are quite useful apps that developers can leverage on and can be enhanced further as part of the operating system. adtproductbuild -

- annotations - Annotation used in SDK

- Annotation used in SDK apkbuilder - from readme.txt "The apkbuilder command line tool is deprecated, and is not maintained anymore. It is lacking recent build improvements such as support for Library Projects. Its source code has been moved into sdklib. It is recommended to directly use the com.android.sdklib.build.ApkBuilder class instead."

- from readme.txt "The apkbuilder command line tool is deprecated, and is not maintained anymore. It is lacking recent build improvements such as support for Library Projects. Its source code has been moved into sdklib. It is recommended to directly use the com.android.sdklib.build.ApkBuilder class instead." apps -

- attribute_stats - from README.txt "This program gathers statistics about attribute usage in layout files."

- from README.txt "This program gathers statistics about attribute usage in layout files." avdlauncher - from avdlauncher.c "The AVD Manager is for Windows only. This simple .exe will sit at the root of the Windows SDK and currently simply executes tools\android.bat.Eventually it should simply replace the batch file."

- from avdlauncher.c "The AVD Manager is for Windows only. This simple .exe will sit at the root of the Windows SDK and currently simply executes tools\android.bat.Eventually it should simply replace the batch file." bash_completion - from README "This directory contains scripts that are intended to be used with Bourne Again SHell (bash)'s programmable completion."

- from README "This directory contains scripts that are intended to be used with Bourne Again SHell (bash)'s programmable completion." build - contains few scripts for SDK that are used during build process

- contains few scripts for SDK that are used during build process docs - contains short documentation for building SDK, using cupcake SDK, etc

- contains short documentation for building SDK, using cupcake SDK, etc dumpeventlog - utility to connect to a device using ddmlib and dumps its event log as long as the device is connected.

- utility to connect to a device using ddmlib and dumps its event log as long as the device is connected. eclipse - contains all the necessary files for Android Eclipse plugins

- contains all the necessary files for Android Eclipse plugins emulator - contains Android emulator files - gps, sensors, etc

- contains Android emulator files - gps, sensors, etc eventanalyzer - connects to a device using ddmlib and analyze its event log.

- connects to a device using ddmlib and analyze its event log. files - contains misc files, such as configuration for ANT build.xml, Windows batch file to find Java

- contains misc files, such as configuration for ANT build.xml, Windows batch file to find Java find_java -

- find_lock -

- hierarchyviewer - hierarchy viewer as part of the Eclipse plugin

- hierarchy viewer as part of the Eclipse plugin icons - few Android related icons

- few Android related icons monitor -

- sdklauncher - Android SDK launcher

- Android SDK launcher settings -

- templates -

- testapps - from README.txt "This repository contains test applications used by the SDK automated tests."

19. system

bluetooth This directory contains source for bluetooth bluedroid -

- bluez-clean-headers - Contains header files that was generated automatically. Contains information necessary for userspace to call into the kernel available to Android. It contains only constants, structures, and macros generated

- Contains header files that was generated automatically. Contains information necessary for userspace to call into the kernel available to Android. It contains only constants, structures, and macros generated brcm_patchram_plus - Downloads a patchram files in the HCD format to Broadcom Bluetooth based silicon and combo chips and other utility functions.

- Downloads a patchram files in the HCD format to Broadcom Bluetooth based silicon and combo chips and other utility functions. brfpatch - Generates bluetooth firmware

- Generates bluetooth firmware data - Bluetooth configuration files

- Bluetooth configuration files tools - Contains few test code to test different Bluetooth communication. core This directory contains number of utilities that are used by Android for maintenance and also during startups such as - adb, mkbootimg, run-as, fastboot, etc. adb - Android Debug Bridge utility

- Android Debug Bridge utility charger - Battery charger

- Battery charger cpio - Archiving tool. Refer to buffer-format.txt from the linux kernel docs for explanation of the file format

- Archiving tool. Refer to buffer-format.txt from the linux kernel docs for explanation of the file format debuggerd - Crash dump on logcat generator. Good explanation about this tool (http://kobablog.wordpress.com/2011/05/12/debuggerd-of-android/)

- Crash dump on logcat generator. Good explanation about this tool (http://kobablog.wordpress.com/2011/05/12/debuggerd-of-android/) fastboot - Fastboot utility

- Fastboot utility fs_mgr -

- gpttool - Partition query tool

- Partition query tool include - Folder and subfolders contains supporting header files. Most of the header files looks like can be found in NDK

- Folder and subfolders contains supporting header files. Most of the header files looks like can be found in NDK init -

- libcorkscrew -

- libctest - C source to run test suites

- C source to run test suites libcutils - Contains utilities source code that are used internally by Android

- Contains utilities source code that are used internally by Android libdiskconfig - Contains disk utilities related to partition, MBR

- Contains disk utilities related to partition, MBR libion -

- liblinenoise - A small self-contained alternative to readline and libedit. Originally from https://github.com/antirez/linenoise

- A small self-contained alternative to readline and libedit. Originally from https://github.com/antirez/linenoise liblog - Android and Kernel log library that are used internally by Android

- Android and Kernel log library that are used internally by Android libmincrypt - SHA and RSA code implementation

- SHA and RSA code implementation libnetutils - DHCP implementation code

- DHCP implementation code libnl_2 - Netlink Protocol Format (RFC3549), this library is a clean room re-implementation of libnl 2.0

- Netlink Protocol Format (RFC3549), this library is a clean room re-implementation of libnl 2.0 libpixelflinger - Library for PixelFinger.

- Library for PixelFinger. libsparse -

- libsuspend -

- libsync -

- libsysutils - Library for system utilities.

- Library for system utilities. libusbhost - Contains USB related functions

- Contains USB related functions libzipfile - Contains zip related functions

- Contains zip related functions logcat - Contains logcat related functions

- Contains logcat related functions logwrapper - Log application that forks and executes application and redirecting stdout and stderr to the Android logging system

- Log application that forks and executes application and redirecting stdout and stderr to the Android logging system mkbootimg - Application to make boot image file

- Application to make boot image file netcfg - Network configuration application to enable or disable DHCP, etc

- Network configuration application to enable or disable DHCP, etc rootdir - Contains .rc files for init

- Contains .rc files for init run-as - Contains run-as application

- Contains run-as application sdcard - Contains sdcard application, it is a program that uses FUSE to emulate FAT-on-sdcard style

- Contains sdcard application, it is a program that uses FUSE to emulate FAT-on-sdcard style sh - Contains sh application

- Contains sh application toolbox - Contains small useful application that are part of the Android operating system

extras Contains extra utility and application such as - timeinfo, fat utility, ext4 utility, etc atrace -

- bugmailer - utility to send bug report

- utility to send bug report cpustats -

- ext4_utils - folder contains ext4 utilities

- folder contains ext4 utilities fatblock - utility to move file or image to a block device

- utility to move file or image to a block device latencytop - latency top utility

- latency top utility libc_test -

- libpagemap - page map libraries

- page map libraries librank - process libaries viewing utility

- process libaries viewing utility libublock - device block utility

- device block utility micro_bench - micro benchmark utility to measure time for certain operation

- micro benchmark utility to measure time for certain operation procmem - utility to show process memory

- utility to show process memory procrank - process rank utility

- process rank utility sane_schedstat - schedule statistics utility

- schedule statistics utility showmap - show memory map for a particular process

- show memory map for a particular process showslab - Kernel slab allocator statistics utility

- Kernel slab allocator statistics utility sound - Utility to play.wav file

- Utility to play.wav file su - su utility

- su utility tests - contains test cases binder - contains test cases

- contains test cases bionic - This directory contains a set of tests for Android's Bionic C library.

- This directory contains a set of tests for Android's Bionic C library. cpueater - CPU eating test

- CPU eating test directiotest - direct IO test

- direct IO test ext4 -

- framebuffer - framebuffer test

- framebuffer test fstest - file system test

- file system test icachetest - cache test case

- cache test case include - contain header file for test utilities

- contain header file for test utilities iptables - qtaguid socket test

- qtaguid socket test lib - contain implementation code for test utilities

- contain implementation code for test utilities memtest - memory test

- memory test pftest - memory pagefile test

- memory pagefile test schedtest - scheduling test case

- scheduling test case sdcard - SD card test case

- SD card test case timetest - time test case

- time test case wifi - WiFi load, scan, associate, unload stress test timeinfo - time info media Audio related samples and utilties audio_effects - header files for audio effects such as bass, equalizer, etc

- header files for audio effects such as bass, equalizer, etc audio_utils - echo reference audio module

- echo reference audio module camera - netd Networking daemon and framework such as PPP, DNS Listener. security keystore -

- keystore-engine -

- softkeymaster - vold Volume Daemon is a program that can automatically mount your CD-Roms, USB-Memory Sticks, iPods and other removable Media.

22. tools

docs

external

hooks

subcmds

tests

23. vendors