| /* Simulator watchpoint support. |
| Copyright (C) 1997-2021 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 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, 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 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; |
| unsigned long arg0; |
| unsigned long arg1; |
| sim_event *event; |
| sim_watch_point *next; |
| }; |
| |
| |
| typedef struct _sim_watchpoints { |
| |
| /* Pointer into the host's data structures specifying the |
| address/size of the program-counter */ |
| /* FIXME: In the future this shall be generalized so that any of the |
| N processors M registers can be watched */ |
| |
| /* 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; |
| |
| /* 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; |
| |
| /* Watch install handler. */ |
| MODULE_INSTALL_FN sim_watchpoint_install; |
| |
| #endif /* SIM_WATCH_H */ |