Android Source code Structure analysis

├── ABI--- binary compatibility check

├── Art　---

├── Bionic---Bionic C Library Implementation Code

├──bootable　--- boot loader source code, including bootloader,diskinstall,recovery

├── Build--- compilation system, including various make and shell scripts

├──cts < Span style= "font-size:12pt" >--- compatibility detection code, android phone if required g< Span style= "Font-family:liberation serif,serif" >oogle authentication, you need to pass Google Compatibility detection to ensure that the mobile system has a standard Sdkapi interface

├──Dalvik　---dalvik virtual machine source

├──developers　---

├──Development　--- Some of the configuration files used by Android developers

├── Device --- different vendor-related compilation scripts, including Samsung and Motorola

├──docs　---source.android.com documents

├──external ---android dependent extension libraries, including bluetooth,skia,sqlite,webkit,wpa_supplicant such as the function library and some tool libraries, such as Oprofile for < span lang= performance debugging of the "en-us" >jni layer, where most of the code for the runtime layer of the system is here

├──Frameworks　--- framework layer source Code, application framework Layer

├──hardware　--- hardware abstraction layer related source code

├──libcore　--- core Java Library

├──libnativehelper　--- some of the JNI header files

├──Makefile　--- compiled port, pointing to /build/core/main.mk

├── NDK---ndk development environment-related source code

├──out--- compiled output directory, the compiled output will be in this directory, divided into the host part and the target part　

├──Packages　--- a variety of built-in applications, content providers, input methods, application layer development

├── PDK

├──prebuilts　--- The program files required for compiling, including the arm compilers under various platforms

The ├──SDK　--- the files needed to compile the SDK tools, including the hierachyviewer,eclipse plugin , Emulator,traceview and other main tools

├──system--- some of the tools required for Linux adb,debuggerd,fastboot,logcat ...　

└── Tools

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Android Source code Structure analysis