* maint.c: New file.

* Makefile.in (SFILES_MAINDIR):  Add new file maint.c.
	* Makefile.in (OBS):  Add new file maint.o.
	* defs.h (command_class):  Add class_maintenance.
	* defs.h (MAINTENANCE_CMDS):  Default to including maintenance
	commands.  Allow for them (and other nonessential parts of gdb)
	to be selectively left out under special circumstances.
	* gdbtypes.c (recursive_dump_type):  New function; supports
	maintenance print-type command.
	* gdbtypes.h (recursive_dump_type, maintenance_print_type):
	Add prototypes.
	* main.c (maintenancelist, maintenanceinfolist):  Add maintenance
	command lists.
	* main.c (initialize_cmd_lists):  Eliminate unnecessary casts on
	initializers.  Add initializations for setprintlist, showprintlist,
	setchecklist, showchecklist, maintenancelist, and maintenanceinfolist.
	* printcmd.c (maintenance_print_type):  New maintenance cmd.
	* valprint.c (setprintlist, showprintlist):  Move to main.c, as
	implied by comment that all cmd lists are owned by main.c.
	* infcmd.c (unsetlist):  Move to main.c, as implied by comment
	that all cmd lists are owned by main.c.
	* language.c (setchecklist, showchecklist):  Move to main.c, as
	implied by comment that all cmd lists are owned by main.c
	* breakpoint.c (enablelist, enablebreaklist, disablelist, cmdlist,
	deletelist):  Remove redundant declarations (also in gdbcmd.h).
	* symmisc.c (printsyms_command):  Now maintenance_print_symbols.
	* symmisc.c (printmsyms_command):  Now maintenance_print_msymbols.
	* symmisc.c (printpsyms_command):  Now maintenance_print_psymbols.
	* symmisc.c (printobjfiles_command):  Now maintenance_print_objfiles.
	* symtab.h (maintenance_print_symbols, maintenance_print_psymbols,
	maintenance_print_msymbols, maintenance_print_objfiles):
	Add prototypes.
	* symmisc.c (printsyms_command, printpsyms_command,
	printmsyms_command, printobjfiles_command):  Removed from
	_initialize_symmisc.
	* main.c (dump_me_command):  Moved to maint.c and renamed to
	maintenance_dump_me.
	* breakpoint.c (all_breakpoints_info):  Rename to
	maintenance_info_breakpoints.
	* breakpoint.c (_initialize_breakpoint):  Convert add_info of
	all_breakpoints_info to add maintenance_info_breakpoints to the
	maintenanceinfolist instead.
	main.c (initialize_main):  Set up maintenance class commands.

gdb/main.c

@@ -119,9 +119,6 @@ set_history_size_command PARAMS ((char *, int, struct cmd_list_element *));
 static void
 show_commands PARAMS ((char *, int));
 
-static void
-dump_me_command PARAMS ((char *, int));
-
 static void
 echo_command PARAMS ((char *, int));
 
@@ -227,7 +224,12 @@ struct cmd_list_element *enablebreaklist;
 
 struct cmd_list_element *setlist;
 
+/* Chain containing all defined unset subcommands */
+
+struct cmd_list_element *unsetlist;
+
 /* Chain containing all defined show subcommands.  */
+
 struct cmd_list_element *showlist;
 
 /* Chain containing all defined \"set history\".  */
@@ -235,12 +237,33 @@ struct cmd_list_element *showlist;
 struct cmd_list_element *sethistlist;
 
 /* Chain containing all defined \"show history\".  */
+
 struct cmd_list_element *showhistlist;
 
 /* Chain containing all defined \"unset history\".  */
 
 struct cmd_list_element *unsethistlist;
 
+/* Chain containing all defined maintenance subcommands. */
+
+#if MAINTENANCE_CMDS
+struct cmd_list_element *maintenancelist;
+#endif
+
+/* Chain containing all defined "maintenance info" subcommands. */
+
+#if MAINTENANCE_CMDS
+struct cmd_list_element *maintenanceinfolist;
+#endif
+
+struct cmd_list_element *setprintlist;
+
+struct cmd_list_element *showprintlist;
+
+struct cmd_list_element *setchecklist;
+
+struct cmd_list_element *showchecklist;
+
 /* stdio stream that command input is being read from.  */
 
 FILE *instream;
@@ -1998,18 +2021,6 @@ echo_command (text, from_tty)
   fflush (stdout);
 }
 
-/* ARGSUSED */
-static void
-dump_me_command (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  if (query ("Should GDB dump core? "))
-    {
-      signal (SIGQUIT, SIG_DFL);
-      kill (getpid (), SIGQUIT);
-    }
-}
 
 /* Functions to manipulate command line editing control variables.  */
 
@@ -2178,17 +2189,26 @@ batch_mode ()
 static void
 initialize_cmd_lists ()
 {
-  cmdlist = (struct cmd_list_element *) 0;
-  infolist = (struct cmd_list_element *) 0;
-  enablelist = (struct cmd_list_element *) 0;
-  disablelist = (struct cmd_list_element *) 0;
-  deletelist = (struct cmd_list_element *) 0;
-  enablebreaklist = (struct cmd_list_element *) 0;
-  setlist = (struct cmd_list_element *) 0;
+  cmdlist = NULL;
+  infolist = NULL;
+  enablelist = NULL;
+  disablelist = NULL;
+  deletelist = NULL;
+  enablebreaklist = NULL;
+  setlist = NULL;
+  unsetlist = NULL;
   showlist = NULL;
-  sethistlist = (struct cmd_list_element *) 0;
+  sethistlist = NULL;
   showhistlist = NULL;
-  unsethistlist = (struct cmd_list_element *) 0;
+  unsethistlist = NULL;
+#if MAINTENANCE_CMDS
+  maintenancelist = NULL;
+  maintenanceinfolist = NULL;
+#endif
+  setprintlist = NULL;
+  showprintlist = NULL;
+  setchecklist = NULL;
+  showchecklist = NULL;
 }
 
 /* Init the history buffer.  Note that we are called after the init file(s)
@@ -2247,6 +2267,12 @@ initialize_main ()
   /* Define the classes of commands.
      They will appear in the help list in the reverse of this order.  */
 
+  add_cmd ("internals", class_maintenance, NO_FUNCTION,
+	   "Maintenance commands.\n\
+Some gdb commands are provided just for use by gdb maintainers.\n\
+These commands are subject to frequent change, and may not be as\n\
+well documented as user commands.",
+	   &cmdlist);
   add_cmd ("obscure", class_obscure, NO_FUNCTION, "Obscure features.", &cmdlist);
   add_cmd ("aliases", class_alias, NO_FUNCTION, "Aliases of other commands.", &cmdlist);
   add_cmd ("user-defined", class_user, NO_FUNCTION, "User-defined commands.\n\
@@ -2325,9 +2351,6 @@ when gdb is started.");
   c->function.sfunc = set_verbose;
   set_verbose (NULL, 0, c);
   
-  add_com ("dump-me", class_obscure, dump_me_command,
-	   "Get fatal error; make debugger dump its core.");
-
   add_show_from_set
     (add_set_cmd ("editing", class_support, var_boolean, (char *)&command_editing_p,
 	   "Set editing of command lines as they are typed.\n\