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Dan Willemsen 8d5dc6be57 Better error for missing LOCAL_SRC_FILES in prebuilts
If there's a prebuilt with LOCAL_MULTILIB := true, but only a single
LOCAL_SRC_FILES entry, we end up with a weird build error where `cp`
is trying to copy the local directory. Exit early with an error in this
case.

Bug: 73904572
Test: build-aosp_marlin.ninja is identical
Change-Id: Ie2821817c237087a96e87fb9602e430e0f86584a
2018-02-26 21:01:45 -08:00
core Better error for missing LOCAL_SRC_FILES in prebuilts 2018-02-26 21:01:45 -08:00
target Create firmware and persist in GSI for arm_ab 2018-02-26 23:10:47 +00:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-03 02:47:59 +00:00
tools Merge "Default test to AndroidJUnitTest for auto-generated test config." 2018-02-26 23:00:28 +00:00
.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
Changes.md Remove unnecessary USE_CLANG_PLATFORM_BUILD. 2018-01-11 14:29:23 -08:00
CleanSpec.mk move VINTF metadata to /etc/vintf/ . 2018-01-19 10:52:27 -08:00
OWNERS Add Nan to OWNERS 2018-01-18 15:50:07 -08:00
README.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
Usage.txt Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
envsetup.sh Remove core/clang/versions.mk and scan-build wrapper 2018-02-15 13:38:50 -08:00
help.sh Support /product partition 2018-01-25 09:33:58 +09:00
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For an outdated reference on Android.mk files, see build-system.html.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.