projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c SS |
1 | /* Target definitions for GDB on a Motorola 680x0 running SVR4. |
| 2 | (Commodore Amiga with amix or Atari TT with ASV) | |
| 3 | Copyright (C) 1991, 1995 Free Software Foundation, Inc. | |
| 4 | Written by Fred Fish at Cygnus Support (fnf@cygint) | |
| 5 | ||
| 6 | This file is part of GDB. | |
| 7 | ||
| 8 | This program is free software; you can redistribute it and/or modify | |
| 9 | it under the terms of the GNU General Public License as published by | |
| 10 | the Free Software Foundation; either version 2 of the License, or | |
| 11 | (at your option) any later version. | |
| 12 | ||
| 13 | This program is distributed in the hope that it will be useful, | |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | GNU General Public License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with this program; if not, write to the Free Software | |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
| 21 | ||
| 22 | /* Define BPT_VECTOR if it is different than the default. | |
| 23 | This is the vector number used by traps to indicate a breakpoint. */ | |
| 24 | ||
| 25 | #define BPT_VECTOR 0x1 | |
| 26 | ||
| 27 | /* How much to decrement the PC after a trap. Depends on kernel. */ | |
| 28 | ||
| 29 | #define DECR_PC_AFTER_BREAK 0 /* No decrement required */ | |
| 30 | ||
| 31 | /* Use the alternate method of determining valid frame chains. */ | |
| 32 | ||
| 33 | #define FRAME_CHAIN_VALID(fp,fi) alternate_frame_chain_valid (fp, fi) | |
| 34 | ||
| 35 | #include "tm-sysv4.h" | |
| 36 | #include "m68k/tm-m68k.h" | |
| 37 | ||
| 38 | /* Offsets (in target ints) into jmp_buf. Not defined in any system header | |
| 39 | file, so we have to step through setjmp/longjmp with a debugger and figure | |
| 40 | them out. As a double check, note that <setjmp> defines _JBLEN as 13, | |
| 41 | which matches the number of elements we see saved by setjmp(). */ | |
| 42 | ||
| 43 | #define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */ | |
| 44 | ||
| 45 | #define JB_D2 0 | |
| 46 | #define JB_D3 1 | |
| 47 | #define JB_D4 2 | |
| 48 | #define JB_D5 3 | |
| 49 | #define JB_D6 4 | |
| 50 | #define JB_D7 5 | |
| 51 | #define JB_A1 6 | |
| 52 | #define JB_A2 7 | |
| 53 | #define JB_A3 8 | |
| 54 | #define JB_A4 9 | |
| 55 | #define JB_A5 10 | |
| 56 | #define JB_A6 11 | |
| 57 | #define JB_A7 12 | |
| 58 | ||
| 59 | #define JB_PC JB_A1 /* Setjmp()'s return PC saved in A1 */ | |
| 60 | ||
| 61 | /* Figure out where the longjmp will land. Slurp the args out of the stack. | |
| 62 | We expect the first arg to be a pointer to the jmp_buf structure from which | |
| 63 | we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. | |
| 64 | This routine returns true on success */ | |
| 65 | ||
| 66 | #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) | |
| 67 | extern int get_longjmp_target PARAMS ((CORE_ADDR *)); | |
| 68 | ||
| 69 | /* Convert a DWARF register number to a gdb REGNUM. */ | |
| 70 | #define DWARF_REG_TO_REGNUM(num) ((num) < 16 ? (num) : (num)+FP0_REGNUM-16) |