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Jiyong Park 02426e6118 Ensure TARGET_FLATTEN_APEX == true when ro.apex.updatable is not set
TARGET_FLATTEN_APEX and ro.apex.updatable cannot be independently set.
For a device where updating APEXes is not supported, ro.apex.updatable
should not be set (or set to false) and TARGET_FLATTEN_APEX should be
set to true. For APEX-supporting devices, it is the opposite;
ro.apex.updatable == true and TARGET_FLATTEN_APEX is false (or not set).

To ensure this relationship, TARGET_FLATTEN_APEX is by default set to
true, and overridden to false when updatable_apex.mk is inherited.

Bug: 130623080
Test: choosecombo to Pixels 2 and later; get_build_var
TARGET_FLATTEN_APEX returns false.
choosecombo to the original Pixel and other non-Pixel targets;
get_build_var TARGET_FLATTEN_APEX returns true.
choosecombo to the cuttlefish; get_build_var TARGET_FLATTEN_APEX
returns false

Merged-In: Id73a594dd9838457e68e2793122592c11a84fc83
Change-Id: Id73a594dd9838457e68e2793122592c11a84fc83
(cherry picked from commit 18411a42f0)
2019-05-09 09:56:55 +09:00
common Move dexpreopting to Soong 2018-12-17 13:46:17 -08:00
core Ensure TARGET_FLATTEN_APEX == true when ro.apex.updatable is not set 2019-05-09 09:56:55 +09:00
packaging Fix creating _dist_<goal> targets under !dist 2018-10-21 08:56:27 -07:00
target Ensure TARGET_FLATTEN_APEX == true when ro.apex.updatable is not set 2019-05-09 09:56:55 +09:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-01 14:26:40 -07:00
tools releasetools: Update the comments regarding selinux_fc. 2019-05-08 12:40:27 -07:00
.gitignore Add build subprojects to .gitignore 2015-07-23 13:18:47 -07:00
Changes.md Add infrastructure for deprecating module types 2019-04-17 17:02:20 -07:00
CleanSpec.mk Update the references to verity tools. 2019-05-02 18:32:11 -07:00
Deprecation.md Move BUILD_[HOST_]SHARED_TEST_LIBRARY to obsolete list 2019-05-08 12:37:10 -07:00
OWNERS Remove redundant per-file * 2019-03-18 10:21:15 -07:00
README.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
Usage.txt Remove showcommands from docs 2018-07-14 09:32:13 -07:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
envsetup.sh Update hmm text for mgrep. 2019-05-04 10:06:28 -07:00
help.sh s/product-services/product_services/g 2018-08-20 10:44:59 -07:00
navbar.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

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.