/usr/share/ada/ is in libdbusada1-dev 0.3-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/ada/adainclude/
/usr/share/ada/adainclude/dbus-ada/
/usr/share/ada/adainclude/dbus-ada/d_bus-arguments-basic.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-arguments-basic.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-arguments-containers.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-arguments-containers.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-arguments.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-arguments.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-callbacks.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-callbacks.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-connection-g_main.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-connection-g_main.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-connection.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-connection.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-g_main.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-g_main.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-marshaling.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-messages.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-messages.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-service.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-service.ads
/usr/share/ada/adainclude/dbus-ada/d_bus-types.adb
/usr/share/ada/adainclude/dbus-ada/d_bus-types.ads
/usr/share/ada/adainclude/dbus-ada/d_bus.ads
/usr/share/ada/adainclude/dbus-ada/dbus_address_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_arch_deps_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_bus_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_connection_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_errors_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_memory_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_message_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_misc_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_pending_call_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_server_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_shared_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_signature_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_threads_h.ads
/usr/share/ada/adainclude/dbus-ada/dbus_types_h.ads
/usr/share/ada/adainclude/dbus-ada/stdarg_h.ads
/usr/share/ada/adainclude/dbus-ada/stddef_h.ads
/usr/share/ada/adainclude/dbus_ada.gpr