android10/system/sepolicy/public/shared_relro.te

# Process which creates/updates shared RELRO files to be used by other apps.
type shared_relro, domain;

# Grant write access to the shared relro files/directory.
allow shared_relro shared_relro_file:dir rw_dir_perms;
allow shared_relro shared_relro_file:file create_file_perms;

# Needs to contact the "webviewupdate" and "activity" services
allow shared_relro activity_service:service_manager find;
allow shared_relro webviewupdate_service:service_manager find;
allow shared_relro package_service:service_manager find;