[automerger skipped] Merge "Merge RQ1A.210205.004 to aosp-master - DO NOT MERGE" am: 250a0420ea -s ours am: 5a39095fbc -s ours

am skip reason: Change-Id Ibf5ea0aaf1cf42c08f32e435b1164598410ac44a with SHA-1 697af28902 is in history

Original change: https://android-review.googlesource.com/c/platform/build/+/1573543

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia0ed2229e33143b0f270e0897771344969bc0199
tree: d7be513de044e5d5f3c09d6716fdbb335fbfb812
  1. common/
  2. core/
  3. packaging/
  4. target/
  5. tests/
  6. tools/
  7. .gitignore
  8. buildspec.mk.default
  9. Changes.md
  10. CleanSpec.mk
  11. Deprecation.md
  12. envsetup.sh
  13. help.sh
  14. navbar.md
  15. OWNERS
  16. rbesetup.sh
  17. README.md
  18. tapasHelp.sh
  19. 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For an outdated reference on Android.mk files, see build-system.html.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.