| commit | 8f830007321ef0cbabd5f581da5a6429843ff399 | [log] [tgz] |
|---|---|---|
| author | Kelvin Zhang <zhangkelvin@google.com> | Wed Aug 16 13:16:48 2023 -0700 |
| committer | Kelvin Zhang <zhangkelvin@google.com> | Wed Aug 16 13:16:48 2023 -0700 |
| tree | da07af2313f31b8a2d34a323dd8a50d008f5cf7f | |
| parent | cadce2a0714fc82eff127be4041cb4247acc6420 [diff] |
Check device's launch API level before using new compresison algo If a T launch device later changes to LZ4(which is supported since U), we will fallback to older compression algorithms, because if the full OTA is applied on an T build, the update_engine on device won't support lz4. Bug: 295989519 Test: generate full OTA for T launched devices, make sure lz4 is not used Change-Id: I82fdf788e47e2a6daeaa4479bfecf317d8ebb5d5
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For an outdated reference on Android.mk files, see build-system.html.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.