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50a2a691 AC |
1 | /* Simulator watchpoint support. |
2 | Copyright (C) 1997 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Support. | |
4 | ||
5 | This file is part of GDB, the GNU debugger. | |
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, or (at your option) | |
10 | 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 along | |
18 | with this program; if not, write to the Free Software Foundation, Inc., | |
19 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | ||
22 | #ifndef SIM_WATCH_H | |
23 | #define SIM_WATCH_H | |
24 | ||
25 | typedef enum { | |
1bba340a | 26 | invalid_watchpoint = -1, |
50a2a691 AC |
27 | pc_watchpoint, |
28 | clock_watchpoint, | |
29 | cycles_watchpoint, | |
30 | nr_watchpoint_types, | |
31 | } watchpoint_type; | |
32 | ||
1bba340a AC |
33 | typedef struct _sim_watch_point sim_watch_point; |
34 | struct _sim_watch_point { | |
35 | int ident; | |
36 | watchpoint_type type; | |
37 | int interrupt_nr; /* == nr_interrupts -> breakpoint */ | |
38 | int is_periodic; | |
2f2e6c5d | 39 | int is_within; |
1bba340a AC |
40 | unsigned long arg0; |
41 | unsigned long arg1; | |
50a2a691 | 42 | sim_event *event; |
1bba340a AC |
43 | sim_watch_point *next; |
44 | }; | |
50a2a691 AC |
45 | |
46 | ||
47 | typedef struct _sim_watchpoints { | |
48 | ||
49 | /* Pointer into the host's data structures specifying the | |
50 | address/size of the program-counter */ | |
51 | /* FIXME: In the future this shall be generalized so that any of the | |
52 | N processors M registers can be watched */ | |
53 | void *pc; | |
54 | int sizeof_pc; | |
55 | ||
56 | /* Pointer to the handler for interrupt watchpoints */ | |
57 | /* FIXME: can this be done better? */ | |
1bba340a | 58 | /* NOTE, interrupt is passed in as the target of the pointer! */ |
50a2a691 AC |
59 | sim_event_handler *interrupt_handler; |
60 | ||
1bba340a AC |
61 | /* Pointer to a null terminated list of interrupt names */ |
62 | /* FIXME: can this be done better? Look at the PPC's interrupt | |
63 | mechanism and table for a rough idea of where it will go next */ | |
64 | int nr_interrupts; | |
65 | char **interrupt_names; | |
66 | ||
67 | /* active watchpoints */ | |
68 | int last_point_nr; | |
69 | sim_watch_point *points; | |
50a2a691 AC |
70 | |
71 | } sim_watchpoints; | |
72 | ||
73 | /* Watch install handler. */ | |
74 | MODULE_INSTALL_FN sim_watchpoint_install; | |
75 | ||
76 | #endif /* SIM_WATCH_H */ |