[coastguard skipped] Merge sparse cherrypicks from sparse-10121037-L10400000960889242 into tm-qpr3-release.

COASTGUARD_SKIP: I864a4057004570f5efeb4c90d06cf26da89cb1bc

Change-Id: I7349ee8437d5b8a9c25ac74f7c34ef35e88b9758
tree: d4d914dfbcc43af7b8d319abeebb1c93662518d1
  1. common/
  2. core/
  3. orchestrator/
  4. packaging/
  5. target/
  6. tests/
  7. tools/
  8. .gitignore
  9. banchanHelp.sh
  10. buildspec.mk.default
  11. Changes.md
  12. CleanSpec.mk
  13. Deprecation.md
  14. envsetup.sh
  15. finalize_branch_for_release.sh
  16. help.sh
  17. METADATA
  18. navbar.md
  19. OWNERS
  20. PREUPLOAD.cfg
  21. rbesetup.sh
  22. README.md
  23. tapasHelp.sh
  24. Usage.txt
README.md

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For an outdated reference on Android.mk files, see build-system.html.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.