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P Adarsh Reddy 7e9b5c4204 Handle virtual A/B defines during dynamic_partitions_info merge. 
While merging the Dynamic Partition info Dicts in the case of
split builds, pick the virtual-a/b flags like virtual_ab,
virtual_ab_retrofit from the vendor half.

Bug: 146811936
Test: Merged build contains the virtual a/b defines.
Change-Id: I0171b074094e47cfd12dc6af2565acdcd1b65163
2019-12-24 06:32:03 +00:00
common Move TOP/TOPDIR to build/make/common/core.mk 2019-08-08 10:58:09 -07:00
core Only dist recovery_ramdisk if BOARD_USES_RECOVERY_AS_BOOT 2019-12-23 14:08:31 -08:00
packaging Fix creating _dist_<goal> targets under !dist 2018-10-21 08:56:27 -07:00
target Move group_system_ext and passwd_system_ext to base_system_ext.mk 2019-12-23 10:31:54 +09:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-01 14:26:40 -07:00
tools Handle virtual A/B defines during dynamic_partitions_info merge. 2019-12-24 06:32:03 +00:00
.gitignore Add build subprojects to .gitignore 2015-07-23 13:18:47 -07:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
Changes.md Improve checks for include dirs outside the source tree 2019-12-05 13:11:04 -08:00
CleanSpec.mk Remove Soong intermdiates after moving image mutator 2019-12-17 14:53:49 -08:00
Deprecation.md Start the deprecation of BUILD_HOST_STATIC_LIBRARY 2019-06-14 09:37:42 -07:00
envsetup.sh Merge "Update the docs for 'mm[m][a]'" 2019-11-01 06:42:14 +00:00
help.sh Rename product_services to system_ext 2019-07-09 08:57:19 +00:00
navbar.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
OWNERS Add more OWNERS 2019-06-17 15:22:33 -07:00
README.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
tapasHelp.sh Remove armv5te 2018-01-08 15:26:16 -08:00
Usage.txt Remove the PRODUCT-* goal 2019-07-29 14:27:04 -07:00

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For an outdated reference on Android.mk files, see build-system.html.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.