Add support for only starting 64 bit zygote.

Added code to support a single system image that can start the
64 bit zygote only, or both the 64 bit and 32 bit zygote. By
default, the system will default to 64 bit only.

For this image, all abilist properties are only present in the
vendor partition. All other copies of these properties are deleted.

Bug: 227482437

Test: Verified that secondary doesn't start with same disk image
Test: with ro.zygote set to zygote64 and abilists set appropriately.
Test: Verified that secondary does not start when restarting netd.
Test: with ro.zygote set to zygote64_32 and abilists set appropriately.
Test: Verified that secondary does start when restarting netd.
Test: Verified that a 64 bit device only starts the primary.
Test: Verified that a 32 bit device only starts the primary.
Change-Id: Ifc6413cecc4df8ba041699f7d0b10786d1926d64
Merged-In: Ifc6413cecc4df8ba041699f7d0b10786d1926d64
2 files changed
tree: 2073f2d384348449bc4dc5f36397d824c24438a2
  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For an outdated reference on Android.mk files, see build-system.html.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.