Prebuilts of APIs from platform and other Mainline modules that the ART Module needs.

These prebuilts should reflect the APIs in Android 12 (version 31), which is the earliest release that may take an update of the ART Module. Hence updating the prebuilts to newer versions needs to be done with care. Prebuilts that are part of the NDK are generally safe since they are annotated to provide a version 31 compatible ABI.

To update:

1. Submit the changes that need to go into the prebuilt.

2. Wait for new builds on branch aosp-master, target mainline_modules_sdks-userdebug.

3. Run:

   prebuilts/runtime/mainline/update.py -b aosp-master --build <build id>
   

   where <build id> is the ID of the build in step #2.

   The update-py script has code to download and unpack all prebuilts, but most of them are commented out (see the PREBUILT_INSTALL_MODULES list). Hence you may need to tweak the script to download the prebuilts you need.

4. Try to minimize the updates in the CL created in prebuilts/runtime, and ensure they are safe. mast@google.com is happy to help with review.