Change RRO default location to /product

This changes the default location of RRO packages that don't
specify where they should be installed to /product instead of
/vendor.

Also change the auto-generated "enforced RRO" packages to install
on /product, and be explicit about that in the mk to make it
independent of the RRO default.

The reasoning for this change is that most overlays tend to be
for product level customizations, like themes and so on. RROs
for hardware related things can still be explicitly installed
on /vendor.

Bug: 123566903
Test: preubmit
Test: various internal tests
Change-Id: Ie7d5f19dc7ab421a7bcf584153f991e18e961cda
3 files changed
tree: 7f6d95163f39efca5f8d84411234841060b64bb9
  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. envsetup.sh
  12. help.sh
  13. navbar.md
  14. OWNERS
  15. README.md
  16. tapasHelp.sh
  17. 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For an outdated reference on Android.mk files, see build-system.html.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.