Speculative fix for bug #1409 as per comment #4. Can't test until can build kernel.
EXPORTS
_ZN8Debugger12DebuggerInfoEv @ 1 NONAME ; Debugger::DebuggerInfo()
_ZN8Debugger7InstallEP13DDebuggerInfo @ 2 NONAME ; Debugger::Install(DDebuggerInfo*)
_ZN8Debugger7VersionEv @ 3 NONAME ; Debugger::Version()