Hello,

The attached adds the script observer.sh that can be used to generate:
	observer.h
	observer.ch (#included by observer.c)
aat build time using doc/observer.texi as the input.

While this is more ambitious than gdbarch.* (which are explicitly 
generated and then committed to CVS) I suspect it is prefered.

Comments?

Once this is in I can add a few observers, and start deleting all those 
hooks and events.

Andrew

(only a year late)