build system

Clone this repo:
  1. ba319b7 Merge "Always get target llvm rtlib from Linux toolchain directory" by Yi Kong · 5 hours ago master
  2. 571d182 Merge "Add some ART people as OWNERS of target/product/runtime_libart.mk." by Roland Levillain · 10 hours ago
  3. 65e4560 Always get target llvm rtlib from Linux toolchain directory by Yi Kong · 11 hours ago
  4. 72e1716 Merge "Revert "Add the Android Runtime APEX module to PRODUCT_PACKAGES."" by Roland Levillain · 11 hours ago
  5. 4c39bd2 Revert "Add the Android Runtime APEX module to PRODUCT_PACKAGES." by Roland Levillain · 11 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 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For an outdated reference on Android.mk files, see build-system.html.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.