build system

Clone this repo:
  1. cf24fc2 Merge "core/Makefile: system_dlkm: Fix non avb dep typo" by Treehugger Robot · 3 hours ago master
  2. 107c452 core/Makefile: system_dlkm: Fix non avb dep typo by Ramji Jiyani · 8 hours ago
  3. 1a40ac3 Merge "Add support to build system_dlkm.img" by Ramji Jiyani · 18 hours ago
  4. bf42125 Merge "Add nfc HAL ndk to gsi" by George Chang · 26 hours ago
  5. 7ef8493 Merge "Generalize @Keep annotation Proguard rules" by Treehugger Robot · 29 hours ago

Android Make Build System

This is the Makefile-based portion of the Android Build System.

For documentation on how to run a build, see Usage.txt

For a list of behavioral changes useful for writers see

For an outdated reference on files, see build-system.html. Our files look similar, but are entirely different from the files used by the NDK build system. When searching for documentation elsewhere, ensure that it is for the platform build system -- most are not.

This Makefile-based system is in the process of being replaced with Soong, a new build system written in Go. During the transition, all of these makefiles are read by Kati, and generate a ninja file instead of being executed directly. That's combined with a ninja file read by Soong so that the build graph of the two systems can be combined and run as one.