projects / binutils.git / blame
| Commit | Line | Data |
|---|---|---|
| 36a2f895 SEF |
1 | /* Parameters for execution on VxWorks 68k's, for GDB, the GNU debugger. |
| 2 | Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc. | |
| 3 | Contributed by Cygnus Support. | |
| 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 2 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, write to the Free Software | |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 20 | ||
| 21 | #define GDBINIT_FILENAME ".os68gdbinit" | |
| 22 | ||
| 23 | #define DEFAULT_PROMPT "(os68k) " | |
| 24 | ||
| 25 | #include "tm-68k.h" | |
| 26 | ||
| 27 | /* We have more complex, useful breakpoints on the target. */ | |
| 28 | #undef DECR_PC_AFTER_BREAK | |
| 29 | #define DECR_PC_AFTER_BREAK 0 | |
| 30 | ||
| 31 | /* We are guaranteed to have a zero frame pointer at bottom of stack, too. */ | |
| 32 | #undef FRAME_CHAIN | |
| 33 | #undef FRAME_CHAIN_VALID | |
| 34 | ||
| 35 | /* Takes the current frame-struct pointer and returns the chain-pointer | |
| 36 | to get to the calling frame. | |
| 37 | ||
| 38 | If our current frame pointer is zero, we're at the top; else read out | |
| 39 | the saved FP from memory pointed to by the current FP. */ | |
| 40 | ||
| 41 | #define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0) | |
| 42 | ||
| 43 | /* If the chain pointer is zero (either because the saved value fetched | |
| 44 | by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN | |
| 45 | never fetched anything), we are at the top of the stack. */ | |
| 46 | ||
| 47 | #define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0) |