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Enrico Granata 1605938e8c Enable uploading ramdisk to target img.zip
For some devices, the img.zip package needs to contain the ramdisk
in order to enable device-specific flashing to work properly

This change adds a new flag BOARD_IMG_USE_RAMDISK to the possible
device Makefile configuration. If set to true, the build process
will insert ramdisk.img in the target-files.zip and img.zip
build outputs of "m dist". No change will occur for builds
that do not use this flag, or set it to a non-true value.

Bug: 168642807
Test: lunch trout_arm64-userdebug, m dist with and w/out
      BOARD_IMG_USE_RAMDISK added to Makefile;
      lunch aosp_cf_arm64-phone-userdebug, m dist
Change-Id: Id29408551cd41c11b96157248e238324a327043d
Merged-In: Id29408551cd41c11b96157248e238324a327043d
2020-10-16 10:02:02 -06:00
common Change use of sanity-check to "test". Makes comment line more clear what the code does. 2020-07-30 22:11:58 +00:00
core Enable uploading ramdisk to target img.zip 2020-10-16 10:02:02 -06:00
packaging Fix creating _dist_<goal> targets under !dist 2018-10-21 08:56:27 -07:00
target Merge "Rename com.android.art module." 2020-10-14 17:56:42 +00:00
tests Only set TARGET_PLATFORM version in lunch when explicitly requested 2017-05-01 14:26:40 -07:00
tools Add build property to enable fscompression 2020-10-15 17:10:25 -07:00
.gitignore Add build subprojects to .gitignore 2015-07-23 13:18:47 -07:00
Changes.md Require required modules to exist 2020-08-06 06:41:09 +00:00
CleanSpec.mk Add clean step to remove Soong's host copies of libconscrypt_openjdk_jni.so 2020-10-09 08:42:13 +00:00
Deprecation.md Obsolete unused module types 2020-04-18 21:00:18 -07:00
OWNERS Refactor OWNERS files in platform/build/make. 2020-10-08 16:14:44 -07:00
README.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
Usage.txt Remove the PRODUCT-* goal 2019-07-29 14:27:04 -07:00
buildspec.mk.default Add TARGET_PLATFORM_VERSION to lunch 2017-03-23 09:44:08 -07:00
envsetup.sh Source vendorsetup.sh scripts anywhere within the repo. 2020-10-14 15:33:44 +00:00
help.sh Revert "Add modules partition." 2020-09-15 19:09:26 +00:00
navbar.md Mark envsetup.sh vars as deprecated in makefiles 2017-11-28 14:19:50 -08:00
rbesetup.sh Source rbesetup.sh from any location inside of a repo directory. 2020-09-28 22:09:41 +00:00
tapasHelp.sh Remove unused mips workarounds. 2020-03-06 16:46:59 -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.