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- /* Parameters for execution on VxWorks 68k's, for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
- Contributed by Cygnus Support.
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #define GDBINIT_FILENAME ".os68gdbinit"
-
- #define DEFAULT_PROMPT "(os68k) "
-
- #include "tm-68k.h"
-
- /* We have more complex, useful breakpoints on the target. */
- #undef DECR_PC_AFTER_BREAK
- #define DECR_PC_AFTER_BREAK 0
-
- /* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
- #undef FRAME_CHAIN
- #undef FRAME_CHAIN_VALID
-
- /* Takes the current frame-struct pointer and returns the chain-pointer
- to get to the calling frame.
-
- If our current frame pointer is zero, we're at the top; else read out
- the saved FP from memory pointed to by the current FP. */
-
- #define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
-
- /* If the chain pointer is zero (either because the saved value fetched
- by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
- never fetched anything), we are at the top of the stack. */
-
- #define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0)
-