fa40c04cba
Currently, when merging target files, system side's update_engine version info is copied into the merged target_files. This causes recovery OTA failure, because update_engine_sideload daemon in recovery is from vendor side. To fix it, use the older version of update_engine config when merging target files. Test: th Bug: 257426678 Change-Id: I5d3304366749995c99a61ca0645a22ee047f1465
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For an outdated reference on Android.mk files, see build-system.html.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.