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Tao Bao 240dcb8c45 Only set set_hashtree_disabled_flag in top-level vbmeta.img. 
It's sufficient to have the flag in top-level vbmeta.img, and libavb
expects no disable flag in chained vbmeta.img.

Bug: 118115607
Test: `m vbmetaimage` with an -eng target using vbmeta_system.img. Check
      the flag in the generated image
      (`avbtool info_image --image vbmeta_system.img`).
Change-Id: Ia429dd8a5cf0243e16ae305da210d3ea27c68abf
2018-10-22 13:06:49 -07:00
common Refactor common makefile fragments 2018-10-20 14:43:58 -07:00
core Only set set_hashtree_disabled_flag in top-level vbmeta.img. 2018-10-22 13:06:49 -07:00
packaging Fix creating _dist_<goal> targets under !dist 2018-10-21 08:56:27 -07:00
target Merge "Workaround Legancy GSI for some Wifi firmware" 2018-10-19 22:22:03 +00:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-03 02:47:59 +00:00
tools releasetools: Log to stdout when running tests. 2018-10-18 15:05:49 -07:00
.gitignore Add build subprojects to .gitignore 2015-07-23 13:18:47 -07:00
Android.mk Fix the build when using findleaves.py 2017-08-08 09:45:12 -07:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
Changes.md Create a new kati packaging step; move dist 2018-10-20 21:44:44 +00:00
CleanSpec.mk Create a new kati packaging step; move dist 2018-10-20 21:44:44 +00:00
envsetup.sh Don't override zsh users' compinit options. 2018-10-16 13:36:23 +02:00
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
OWNERS Use multiple globs/emails in per-file syntax 2018-08-20 14:16:04 -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 showcommands from docs 2018-07-14 09:32:13 -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For an outdated reference on Android.mk files, see build-system.html.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.