build system

Clone this repo:
  1. 5fe798b Merge "Revert "Set a BIONIC_COVERAGE .mk variable"" by Pirama Arumuga Nainar · 4 hours ago master
  2. d698e3e Merge "Add erofs compressor type param" by Treehugger Robot · 8 hours ago
  3. 5d14dfa Merge "Fix formatting error" by Treehugger Robot · 11 hours ago
  4. e6b8497 Revert "Set a BIONIC_COVERAGE .mk variable" by Pirama Arumuga Nainar · 13 hours ago
  5. 6fe2fc0 Add erofs compressor type param by Kelvin Zhang · 6 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For an outdated reference on Android.mk files, see build-system.html.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.