1 /* Simulator watchpoint support.
2 Copyright (C) 1997-2023 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 */
53 /* Pointer to the handler for interrupt watchpoints */
54 /* FIXME: can this be done better? */
55 /* NOTE: For the DATA arg, the handler is passed a (char**) pointer
56 that is an offset into the INTERRUPT_NAMES vector. Use
57 arithmetic to determine the interrupt-nr. */
58 sim_event_handler
*interrupt_handler
;
60 /* Pointer to a null terminated list of interrupt names */
61 /* FIXME: can this be done better? Look at the PPC's interrupt
62 mechanism and table for a rough idea of where it will go next */
64 const char **interrupt_names
;
66 /* active watchpoints */
68 sim_watch_point
*points
;
72 /* Watch install handler. */
73 MODULE_INSTALL_FN sim_watchpoint_install
;
75 #endif /* SIM_WATCH_H */