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[deliverable/binutils-gdb.git] / gdb / dummy-frame.h

/* Code dealing with dummy stack frames, for GDB, the GNU debugger.

   Copyright (C) 2002, 2004 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 2 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, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.  */

#if !defined (DUMMY_FRAME_H)
#define DUMMY_FRAME_H 1

struct frame_info;
struct regcache;
struct frame_unwind;
struct frame_id;

/* 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 regcache *regcache,
			      const 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)  */