| | 1 | /* Definitions to make GDB run on an Altos 3068 (m68k running SVR2) |
| | 2 | Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc. |
| | 3 | |
| | 4 | This file is part of GDB. |
| | 5 | |
| | 6 | This program is free software; you can redistribute it and/or modify |
| | 7 | it under the terms of the GNU General Public License as published by |
| | 8 | the Free Software Foundation; either version 2 of the License, or |
| | 9 | (at your option) any later version. |
| | 10 | |
| | 11 | This program is distributed in the hope that it will be useful, |
| | 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 14 | GNU General Public License for more details. |
| | 15 | |
| | 16 | You should have received a copy of the GNU General Public License |
| | 17 | along with this program; if not, write to the Free Software |
| | 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| | 19 | |
| | 20 | /* Define BPT_VECTOR if it is different than the default. |
| | 21 | This is the vector number used by traps to indicate a breakpoint. */ |
| | 22 | |
| | 23 | #define BPT_VECTOR 0xe |
| | 24 | |
| | 25 | /* Define this if the C compiler puts an underscore at the front |
| | 26 | of external names before giving them to the linker. */ |
| | 27 | |
| | 28 | #undef NAMES_HAVE_UNDERSCORE |
| | 29 | |
| | 30 | /* COFF files don't have long filenames. */ |
| | 31 | |
| | 32 | #define COFF_NO_LONG_FILE_NAMES |
| | 33 | |
| | 34 | /* Address of end of stack space. */ |
| | 35 | |
| | 36 | /*#define STACK_END_ADDR (0xffffff)*/ |
| | 37 | #define STACK_END_ADDR (0x1000000) |
| | 38 | |
| | 39 | /* Amount PC must be decremented by after a breakpoint. |
| | 40 | On the Altos, the kernel resets the pc to the trap instr */ |
| | 41 | |
| | 42 | #define DECR_PC_AFTER_BREAK 0 |
| | 43 | |
| | 44 | /* The only reason this is here is the tm-altos.h reference below. It |
| | 45 | was moved back here from tm-68k.h. FIXME? */ |
| | 46 | |
| | 47 | #define SKIP_PROLOGUE(pc) \ |
| | 48 | { register int op = read_memory_integer (pc, 2); \ |
| | 49 | if (op == 0047126) \ |
| | 50 | pc += 4; /* Skip link #word */ \ |
| | 51 | else if (op == 0044016) \ |
| | 52 | pc += 6; /* Skip link #long */ \ |
| | 53 | /* Not sure why branches are here. */ \ |
| | 54 | /* From tm-isi.h, tm-altos.h */ \ |
| | 55 | else if (op == 0060000) \ |
| | 56 | pc += 4; /* Skip bra #word */ \ |
| | 57 | else if (op == 00600377) \ |
| | 58 | pc += 6; /* skip bra #long */ \ |
| | 59 | else if ((op & 0177400) == 0060000) \ |
| | 60 | pc += 2; /* skip bra #char */ \ |
| | 61 | } |
| | 62 | |
| | 63 | #include "tm-68k.h" |
projects / binutils.git / blame_incremental