Remove basic cleanup code

This removes the basic cleanup code: make_cleanups, do_cleanups,
discard_cleanups, and friends.  This code is no longer needed, as
nothing in gdb makes an ordinary cleanup.  Final cleanups are still
needed.

2019-03-06  Tom Tromey  <tom@tromey.com>

	* top.c (quit_force): Update.
	* main.c (captured_command_loop): Update.
	* common/new-op.c (operator new): Update.
	* common/common-exceptions.c (struct catcher)
	<save_cleanup_chain>: Remove member.
	(exceptions_state_mc_init): Update.
	(exception_try_scope_entry): Return nullptr.
	(exception_try_scope_exit, exception_rethrow)
	(throw_exception_sjlj, throw_exception_cxx): Update.
	* common/cleanups.h (make_cleanup, make_cleanup_dtor)
	(all_cleanups, do_cleanups, discard_cleanups)
	(discard_final_cleanups, save_cleanups, save_final_cleanups)
	(restore_cleanups, restore_final_cleanups): Don't declare.
	(do_final_cleanups): Remove parameter.
	* common/cleanups.c (cleanup_chain, make_cleanup)
	(make_cleanup_dtor, all_cleanups, do_cleanups)
	(discard_my_cleanups, discard_cleanups)
	(discard_final_cleanups, save_my_cleanups, save_cleanups)
	(save_final_cleanups, restore_my_cleanups, restore_cleanups)
	(null_cleanup): Remove.
	(do_final_cleanups): Remove parameter.

1 files changed, 1 insertions, 31 deletions

diff --git a/gdb/common/cleanups.h b/gdb/common/cleanups.h
index f49bcb4..e676076 100644
--- a/gdb/common/cleanups.h
+++ b/gdb/common/cleanups.h
@@ -32,38 +32,8 @@ typedef void (make_cleanup_ftype) (void *);
 /* Function type for the dtor in make_cleanup_dtor.  */
 typedef void (make_cleanup_dtor_ftype) (void *);
 
-/* WARNING: The result of the "make cleanup" routines is not the intuitive
-   choice of being a handle on the just-created cleanup.  Instead it is an
-   opaque handle of the cleanup mechanism and represents all cleanups created
-   from that point onwards.
-   The result is guaranteed to be non-NULL though.  */
-
-extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
-
-extern struct cleanup *make_cleanup_dtor (make_cleanup_ftype *, void *,
-					  make_cleanup_dtor_ftype *);
-
 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
 
-/* A special value to pass to do_cleanups and do_final_cleanups
-   to tell them to do all cleanups.  */
-extern struct cleanup *all_cleanups (void);
-
-extern void do_cleanups (struct cleanup *);
-extern void do_final_cleanups (struct cleanup *);
-
-extern void discard_cleanups (struct cleanup *);
-extern void discard_final_cleanups (struct cleanup *);
-
-extern struct cleanup *save_cleanups (void);
-extern struct cleanup *save_final_cleanups (void);
-
-extern void restore_cleanups (struct cleanup *);
-extern void restore_final_cleanups (struct cleanup *);
-
-/* A no-op cleanup.
-   This is useful when you want to establish a known reference point
-   to pass to do_cleanups.  */
-extern void null_cleanup (void *);
+extern void do_final_cleanups ();
 
 #endif /* COMMON_CLEANUPS_H */