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/* Code dealing with dummy stack frames, for GDB, the GNU debugger.
Copyright (C) 2002, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (DUMMY_FRAME_H)
#define DUMMY_FRAME_H 1
#include "frame.h"
struct inferior_thread_state;
struct frame_unwind;
/* Push the information needed to identify, and unwind from, a dummy
frame onto the dummy frame stack. */
/* NOTE: cagney/2004-08-02: This interface will eventually need to be
parameterized with the caller's thread - that will allow per-thread
dummy-frame stacks and, hence, per-thread inferior function
calls. */
/* NOTE: cagney/2004-08-02: In the case of ABIs using push_dummy_code
containing more than one instruction, this interface many need to
be expanded so that it knowns the lower/upper extent of the dummy
frame's code. */
extern void dummy_frame_push (struct inferior_thread_state *caller_state,
const struct frame_id *dummy_id);
/* Pop the dummy frame DUMMY_ID, restoring program state to that before the
frame was created.
On return reinit_frame_cache has been called.
If the frame isn't found, flag an internal error.
NOTE: This can only pop the one frame, even if it is in the middle of the
stack, because the other frames may be for different threads, and there's
currently no way to tell which stack frame is for which thread. */
extern void dummy_frame_pop (struct frame_id dummy_id);
/* If the PC falls in a dummy frame, return a dummy frame
unwinder. */
extern const struct frame_unwind *const dummy_frame_unwind;
#endif /* !defined (DUMMY_FRAME_H) */
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