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1 | /* Target definitions for GDB on a Motorola 680x0 running SVR4. |
2 | (Commodore Amiga with amix or Atari TT with ASV) | |
5488b3b7 | 3 | Copyright (C) 1991, 1995 Free Software Foundation, Inc. |
5076de82 FF |
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 | |
6c9638b4 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
5076de82 | 21 | |
5076de82 FF |
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 | ||
5076de82 FF |
31 | /* Use the alternate method of determining valid frame chains. */ |
32 | ||
b6960094 | 33 | #define FRAME_CHAIN_VALID(fp,fi) alternate_frame_chain_valid (fp, fi) |
5076de82 FF |
34 | |
35 | #include "tm-sysv4.h" | |
2225eb85 | 36 | #include "m68k/tm-m68k.h" |
5076de82 FF |
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) | |
81a80f32 | 67 | extern int get_longjmp_target PARAMS ((CORE_ADDR *)); |
5488b3b7 PS |
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) |