Any existing way to customize derived mode according to its base mode?

[Hongxu Chen]

Hi all,

   Evil mode is really wonderful for most editing issues. But I sometimes
   prefer the default keymaps(emacs state) for other modes for instance, those
   modes that are derived from comint-mode. When I set

     (evil-set-initial-state 'comint-mode 'emacs)

   But when I use gud-mode, the initial state is still `normal'.
   So is there any setting that can make the derived mode inherit the
   base mode?


 Thanks.
 Hongxu Chen