1 /* Simulator watchpoint support.
2 Copyright (C) 1997-2018 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
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 3 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 invalid_watchpoint = -1,
32 typedef struct _sim_watch_point sim_watch_point;
33 struct _sim_watch_point {
36 int interrupt_nr; /* == nr_interrupts -> breakpoint */
42 sim_watch_point *next;
46 typedef struct _sim_watchpoints {
48 /* Pointer into the host's data structures specifying the
49 address/size of the program-counter */
50 /* FIXME: In the future this shall be generalized so that any of the
51 N processors M registers can be watched */
55 /* Pointer to the handler for interrupt watchpoints */
56 /* FIXME: can this be done better? */
57 /* NOTE: For the DATA arg, the handler is passed a (char**) pointer
58 that is an offset into the INTERRUPT_NAMES vector. Use
59 arithmetic to determine the interrupt-nr. */
60 sim_event_handler *interrupt_handler;
62 /* Pointer to a null terminated list of interrupt names */
63 /* FIXME: can this be done better? Look at the PPC's interrupt
64 mechanism and table for a rough idea of where it will go next */
66 const char **interrupt_names;
68 /* active watchpoints */
70 sim_watch_point *points;
74 /* Watch install handler. */
75 MODULE_INSTALL_FN sim_watchpoint_install;
77 #endif /* SIM_WATCH_H */