* defs.h: Fix cntl-C to read from the Windows message queue.

Add prototypes for make_final_cleanup (and the other cleanup
	routines.
	* remote-e7000.c: Fix sync code to timeout if unable to sync.
	Change sync code to report status while trying to sync-up
	with hardware.  Add debugging output and document.
	* ser-e7kpc.c: Swap order of len & offset to match implementation.
	Add debugging output and document.
	* serial.c: Add debugging output.
	* top.c: Add call to do_final_cleanups.
	Remove conditionals preventing Win32 from getting SIGQUIT.
	* utils.c: (*_cleanup): Modify cleanup routines to accept a cleanup
	chain as a parameter.  Extract this generic code from the cleanup
	routines into separate funtions (*_my_cleanup).  Keep old
	functionality by passing "cleanup_chain" to the new funtions.
	Define the cleanup chain "final_cleanup_chain" to be a cleanup
	chain which will be executed only when gdb exits.  Add functions
	(*_final_cleanup) to match the original (*_cleanup) functions.
	(pollquit, quit, notice_quit): Fix to read cntl-C from the
	Windows message queue.

gdb/top.c

@@ -571,7 +571,6 @@ catch_errors (func, args, errstring, mask)
 
 /* Handler for SIGHUP.  */
 
-#ifndef _WIN32
 static void
 disconnect (signo)
 int signo;
@@ -581,7 +580,6 @@ int signo;
   signal (SIGHUP, SIG_DFL);
   kill (getpid (), SIGHUP);
 }
-#endif
 
 /* Just a little helper function for disconnect().  */
 
@@ -1899,11 +1897,9 @@ init_signals ()
      might be in memory, shared between the two).  Since we establish
      a handler for SIGQUIT, when we call exec it will set the signal
      to SIG_DFL for us.  */
-#ifndef _WIN32
   signal (SIGQUIT, do_nothing);
   if (signal (SIGHUP, do_nothing) != SIG_IGN)
     signal (SIGHUP, disconnect);
-#endif
   signal (SIGFPE, float_handler);
 
 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
@@ -2856,6 +2852,8 @@ quit_command (args, from_tty)
   if (write_history_p && history_filename)
     write_history (history_filename);
 
+  do_final_cleanups(ALL_CLEANUPS);	/* Do any final cleanups before exiting */
+
   exit (exit_code);
 }