[coastguard skipped] Merge sparse cherrypicks from sparse-14249240-L01400030026955173 into 25Q4-release.

COASTGUARD_SKIP: I8dd7ded11f0c57de8d6d9d5af40765c7badf982b

Change-Id: I3ebff5b2a082a0d8cb5331e7c02fbcec02d357db
tree: f444fe951855e0288d4f762d1a2d74daf8f2dbd8
  1. backported_fixes/
  2. ci/
  3. common/
  4. core/
  5. packaging/
  6. target/
  7. teams/
  8. tests/
  9. tools/
  10. .gitignore
  11. Android.bp
  12. banchanHelp.sh
  13. buildspec.mk.default
  14. Changes.md
  15. CleanSpec.mk
  16. Deprecation.md
  17. envsetup.sh
  18. help.sh
  19. navbar.md
  20. OWNERS
  21. PREUPLOAD.cfg
  22. rbesetup.sh
  23. README.md
  24. shell_utils.sh
  25. tapasHelp.sh
  26. 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For an outdated reference on Android.mk files, see build-system.html.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.