6dbb33dfad
In preparation for moving BUILD_NUMBER and FILE_NAME_TAG handling to soong_ui, mark BUILD_NUMBER as obsolete and FILE_NAME_TAG as readonly. Later changes will remove BUILD_NUMBER entirely, and move FILE_NAME_TAG handling into the kati packaging step via dist-for-goals renames. Test: build_test on master Change-Id: I0e340d32fe0cb6296d3b5a7fec349b50632d044e
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For an outdated reference on Android.mk files, see build-system.html.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.