[Android] architecture

• Linux kernel (GPL license) (aosp中並沒有包含 kernel source code)
• Hardware Abstract Layer (HAL) (Android license: Apache license)
• user space C/C++ library layer
• defines interface that Android requires hardware drivers to implement
• separates Android platform logic from hardware interface
• Native C/C++ libraries (library and runtime): OpenMAX AL, libc, OpenGL ES, Media Framework, WebKit
• Java API frameworks (application frameworks): View System, Content Provider, Activity, ...
• System Apps
• Tools
• repo
• Manifest
• cutilies
• make, ...