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1 | /* Macro definitions for GDB on a Commodore Amiga running SVR4 (amix). |
2 | Copyright (C) 1991, Free Software Foundation, Inc. | |
3 | Written by Fred Fish at Cygnus Support (fnf@cygint) | |
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 | ||
5076de82 FF |
21 | /* Define BPT_VECTOR if it is different than the default. |
22 | This is the vector number used by traps to indicate a breakpoint. */ | |
23 | ||
24 | #define BPT_VECTOR 0x1 | |
25 | ||
26 | /* How much to decrement the PC after a trap. Depends on kernel. */ | |
27 | ||
28 | #define DECR_PC_AFTER_BREAK 0 /* No decrement required */ | |
29 | ||
5076de82 FF |
30 | /* Use the alternate method of determining valid frame chains. */ |
31 | ||
32 | #define FRAME_CHAIN_VALID_ALTERNATE | |
33 | ||
34 | #include "tm-sysv4.h" | |
2225eb85 | 35 | #include "m68k/tm-m68k.h" |
5076de82 FF |
36 | |
37 | /* Offsets (in target ints) into jmp_buf. Not defined in any system header | |
38 | file, so we have to step through setjmp/longjmp with a debugger and figure | |
39 | them out. As a double check, note that <setjmp> defines _JBLEN as 13, | |
40 | which matches the number of elements we see saved by setjmp(). */ | |
41 | ||
42 | #define JB_ELEMENT_SIZE sizeof(int) /* jmp_buf[_JBLEN] is array of ints */ | |
43 | ||
44 | #define JB_D2 0 | |
45 | #define JB_D3 1 | |
46 | #define JB_D4 2 | |
47 | #define JB_D5 3 | |
48 | #define JB_D6 4 | |
49 | #define JB_D7 5 | |
50 | #define JB_A1 6 | |
51 | #define JB_A2 7 | |
52 | #define JB_A3 8 | |
53 | #define JB_A4 9 | |
54 | #define JB_A5 10 | |
55 | #define JB_A6 11 | |
56 | #define JB_A7 12 | |
57 | ||
58 | #define JB_PC JB_A1 /* Setjmp()'s return PC saved in A1 */ | |
59 | ||
60 | /* Figure out where the longjmp will land. Slurp the args out of the stack. | |
61 | We expect the first arg to be a pointer to the jmp_buf structure from which | |
62 | we extract the pc (JB_PC) that we will land at. The pc is copied into ADDR. | |
63 | This routine returns true on success */ | |
64 | ||
65 | #define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR) |