cb3505c1be
These optimization annotations are special in that we don't want them to have RUNTIME retention, but we do want them to be visible to ART. R8 already has special rules to handle them, but with R8 full mode it still requires a minimal keep rule for the given reference. This allows usage of annotations like @NeverCompile from fully optimized platform targets like SystemUI. Bug: 215417388 Test: m + compare SystemUIGoogle.odex w/ @NeverCompile annotations Change-Id: Id14bcc7b6d0d6dd385c60cfbe4d31f295cbaa5dc
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For an outdated reference on Android.mk files, see build-system.html.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.