1/* Code dealing with register stack frames, for GDB, the GNU debugger.
2
3   Copyright (C) 2003-2020 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#if !defined (SENTINEL_FRAME_H)
21#define SENTINEL_FRAME_H 1
22
23struct frame_unwind;
24struct regcache;
25
26/* Implement the sentinel frame.  The sentinel frame terminates the
27   inner most end of the frame chain.  If unwound, it returns the
28   information need to construct an inner-most frame.  */
29
30/* Pump prime the sentinel frame's cache.  Since this needs the
31   REGCACHE provide that here.  */
32
33extern void *sentinel_frame_cache (struct regcache *regcache);
34
35/* At present there is only one type of sentinel frame.  */
36
37extern const struct frame_unwind sentinel_frame_unwind;
38
39#endif /* !defined (SENTINEL_FRAME_H)  */
40