build system

Clone this repo:
  1. ae54117 Merge "Move packages from *_product.mk to *_system_ext.mk" by Treehugger Robot · 3 days ago master
  2. c6a3460 Merge "Remove execute-only support." by Ivan Lozano · 3 days ago
  3. 3cd1ebe Remove execute-only support. by Ivan Lozano · 6 days ago
  4. 9021d5c Merge "build_image: check value of "ext4_share_dup_blocks"" by Colin Cross · 4 days ago
  5. 8e3f735 Merge "Modify D8 template to not have inputs under the output directory." by Ramy Medhat · 4 days 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 Android.mk writers see Changes.md

For an outdated reference on Android.mk files, see build-system.html. Our Android.mk files look similar, but are entirely different from the Android.mk 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.