commit | 3d8cf38005be139a0afe2750b7efebf208c4e83b | [log] [tgz] |
---|---|---|
author | Anton Hansson <hansson@google.com> | Wed Feb 24 13:15:07 2021 +0000 |
committer | Anton Hansson <hansson@google.com> | Fri Feb 26 19:21:27 2021 +0000 |
tree | 87922ec82aed9fa587c39ec31b920f5e5d106340 | |
parent | dfa3469bc8a77ce870ec9807c55c7c8b9b80d32a [diff] |
Verify S extension versions in end-to-end test So far we've only been verifying the R extension versions. Add some verification of S version as well. In the future, we should add more test cases, but doing so at the moment requires having more test apexes which is quite a bit of work to set up. Test: atest SdkExtensionsHostTest Change-Id: I0f0533868cb549d2325d742a1cc22c98790d6406
SdkExtensions is a module that decides the extension SDK level of the device, and provides APIs for applications to query the extension SDK level.
The module is packaged in an apex, com.android.sdkext
, and has two components:
bin/derive_sdk
: Native binary that runs early in the device boot process and reads metadata of other modules, to set system properties relating to the extension SDK (for instance build.version.extensions.r
).javalib/framework-sdkextension.jar
: This is a jar on the bootclasspath that exposes APIs to applications to query the extension SDK level.derive_sdk
is a program that reads metadata stored in other apex modules, in the form of binary protobuf files in subpath etc/sdkinfo.binarypb
inside each apex. The structure of this protobuf can be seen here. The exact steps for converting a set of metadata files to actual extension versions is likely to change over time, and should not be depended upon.
The module exposes a java class SdkExtensions
in the package android.os.ext
. The method getExtensionVersion(int)
can be used to read the version of a particular sdk extension, e.g. getExtensionVersion(Build.VERSION_CODES.R)
.
For every new Android SDK level a new extension version should be defined. These are the steps necessary to do that:
derive_sdk.cpp
by:GetSdkLevel
with the new enum setderive_sdk_test.cpp
verifying the new extensions worksSdkExtensions.getExtensionVersion
API support the new extensions.RollbackManagerServiceImpl#getExtensionVersions
to account for the new extension version.