Add OTA support to mainline_system.

update_engine applies an OTA, and update_verifier verifies
partitions post boot.

Note that this also adds cacerts_google as it's a required module by
update_engine, so this reduces the disparity between pixel /system
and mainline_system /system by ~100 files.

Bug: 110410711
Bug: 111495787
Test: make
Change-Id: Idd31407bbd5543fe1dd2b52e87894ac501a025df
1 file changed
tree: 4efe61304d125a3f40961d0fb4ffc93d02590e1b
  1. .gitignore
  2. Android.mk
  3. Changes.md
  4. CleanSpec.mk
  5. OWNERS
  6. README.md
  7. Usage.txt
  8. buildspec.mk.default
  9. core/
  10. envsetup.sh
  11. help.sh
  12. navbar.md
  13. tapasHelp.sh
  14. target/
  15. tests/
  16. tools/
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For an outdated reference on Android.mk files, see build-system.html.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.