aconfig: add flag type in flag table and remove info byte from value
array

1, add flag type to the flag table. Before flag table only stores the
mapping from (package id, flag name) to (flag id u32). The original
intent is to do bitmasking on the top byte of flag id to indicate flag
type. Now split the flag id u32 to two u16, the first represent flag
type, the second represent flag id. So after the change, the flag table
now shows the following mapping:

(package id, flag name) -> (flag type as u16, flag id as u16)

2, originally we plan to store a info byte together with each flag
value. The info byte is used by storage service damemon to mark up the
flag status, such as if it is accepting server side flag push. After
internal discussion, it is better to just create the info bytes as
another file by storage service damemon. So that the value file is
purely a flag value array.

Bug: b/312243587
test: atest aconfig.test
Change-Id: I7f953076b4269cf786bc23723078290e5ebe10bc
4 files changed
tree: 203d60fe72ab7dda9cb79e780d421ca3f53b2199
  1. common/
  2. core/
  3. packaging/
  4. target/
  5. tests/
  6. tools/
  7. .gitignore
  8. banchanHelp.sh
  9. buildspec.mk.default
  10. Changes.md
  11. CleanSpec.mk
  12. cogsetup.sh
  13. Deprecation.md
  14. envsetup.sh
  15. help.sh
  16. METADATA
  17. navbar.md
  18. OWNERS
  19. PREUPLOAD.cfg
  20. rbesetup.sh
  21. README.md
  22. shell_utils.sh
  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For an outdated reference on Android.mk files, see build-system.html.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.