/* Simulator watchpoint support.
- Copyright (C) 1997 Free Software Foundation, Inc.
+ Copyright (C) 1997-2016 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+the Free Software Foundation; either version 3 of the License, or
+(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-You should have received a copy of the GNU General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef SIM_WATCH_H
#define SIM_WATCH_H
typedef enum {
+ invalid_watchpoint = -1,
pc_watchpoint,
clock_watchpoint,
cycles_watchpoint,
nr_watchpoint_types,
} watchpoint_type;
-typedef enum {
- invalid_watchpoint_action,
- n_interrupt_watchpoint_action,
- interrupt_watchpoint_action,
- break_watchpoint_action,
-} watchpoint_action;
-
-typedef struct _sim_watch_point {
- watchpoint_action action;
+typedef struct _sim_watch_point sim_watch_point;
+struct _sim_watch_point {
+ int ident;
+ watchpoint_type type;
+ int interrupt_nr; /* == nr_interrupts -> breakpoint */
+ int is_periodic;
int is_within;
- long arg;
+ unsigned long arg0;
+ unsigned long arg1;
sim_event *event;
-} sim_watch_point;
+ sim_watch_point *next;
+};
typedef struct _sim_watchpoints {
/* Pointer to the handler for interrupt watchpoints */
/* FIXME: can this be done better? */
+ /* NOTE: For the DATA arg, the handler is passed a (char**) pointer
+ that is an offset into the INTERRUPT_NAMES vector. Use
+ arithmetic to determine the interrupt-nr. */
sim_event_handler *interrupt_handler;
- /* suported watchpoints */
- sim_watch_point points[nr_watchpoint_types];
+ /* Pointer to a null terminated list of interrupt names */
+ /* FIXME: can this be done better? Look at the PPC's interrupt
+ mechanism and table for a rough idea of where it will go next */
+ int nr_interrupts;
+ const char **interrupt_names;
+
+ /* active watchpoints */
+ int last_point_nr;
+ sim_watch_point *points;
} sim_watchpoints;