projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c SS |
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 { | |
| 26 | invalid_watchpoint = -1, | |
| 27 | pc_watchpoint, | |
| 28 | clock_watchpoint, | |
| 29 | cycles_watchpoint, | |
| 30 | nr_watchpoint_types, | |
| 31 | } watchpoint_type; | |
| 32 | ||
| 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; | |
| 39 | int is_within; | |
| 40 | unsigned long arg0; | |
| 41 | unsigned long arg1; | |
| 42 | sim_event *event; | |
| 43 | sim_watch_point *next; | |
| 44 | }; | |
| 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? */ | |
| 58 | /* NOTE: For the DATA arg, the handler is passed a (char**) pointer | |
| 59 | that is an offset into the INTERRUPT_NAMES vector. Use | |
| 60 | arithmetic to determine the interrupt-nr. */ | |
| 61 | sim_event_handler *interrupt_handler; | |
| 62 | ||
| 63 | /* Pointer to a null terminated list of interrupt names */ | |
| 64 | /* FIXME: can this be done better? Look at the PPC's interrupt | |
| 65 | mechanism and table for a rough idea of where it will go next */ | |
| 66 | int nr_interrupts; | |
| 67 | char **interrupt_names; | |
| 68 | ||
| 69 | /* active watchpoints */ | |
| 70 | int last_point_nr; | |
| 71 | sim_watch_point *points; | |
| 72 | ||
| 73 | } sim_watchpoints; | |
| 74 | ||
| 75 | /* Watch install handler. */ | |
| 76 | MODULE_INSTALL_FN sim_watchpoint_install; | |
| 77 | ||
| 78 | #endif /* SIM_WATCH_H */ |