projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 8eac0979 SC |
1 | /* Target machine description for EST-300, for GDB, the GNU debugger. |
| 2 | Copyright 1994 Free Software Foundation, Inc. | |
| 3 | Contributed by Steve Chamberlain @ 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 | ||
| 8eac0979 SC |
22 | /* GCC is probably the only compiler used on this configuration. So |
| 23 | get this right even if the code which detects gcc2_compiled. is | |
| 24 | still broken. */ | |
| 25 | ||
| 26 | #define BELIEVE_PCC_PROMOTION 1 | |
| 27 | ||
| 28 | /* We have more complex, useful breakpoints on the target. */ | |
| 29 | #define DECR_PC_AFTER_BREAK 0 | |
| 30 | ||
| 31 | #include "m68k/tm-m68k.h" | |
| 32 | ||
| af89aa10 SC |
33 | #undef FRAME_CHAIN |
| 34 | #undef FRAME_CHAIN_VALID | |
| 8eac0979 SC |
35 | |
| 36 | /* Takes the current frame-struct pointer and returns the chain-pointer | |
| 37 | to get to the calling frame. | |
| 38 | ||
| 39 | If our current frame pointer is zero, we're at the top; else read out | |
| 40 | the saved FP from memory pointed to by the current FP. */ | |
| 41 | ||
| af89aa10 SC |
42 | #define FRAME_CHAIN(thisframe) \ |
| 43 | ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0) | |
| 8eac0979 SC |
44 | |
| 45 | /* If the chain pointer is zero (either because the saved value fetched | |
| 46 | by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN | |
| 47 | never fetched anything), we are at the top of the stack. */ | |
| 48 | ||
| 49 | #define FRAME_CHAIN_VALID(chain, thisframe) (chain != 0) |