mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
/* 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)
|