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78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* Simulator watchpoint support.
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Copyright (C) 1997-2017 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef SIM_WATCH_H
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#define SIM_WATCH_H
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typedef enum {
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invalid_watchpoint = -1,
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pc_watchpoint,
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clock_watchpoint,
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cycles_watchpoint,
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nr_watchpoint_types,
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} watchpoint_type;
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typedef struct _sim_watch_point sim_watch_point;
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struct _sim_watch_point {
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int ident;
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watchpoint_type type;
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int interrupt_nr; /* == nr_interrupts -> breakpoint */
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int is_periodic;
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int is_within;
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unsigned long arg0;
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unsigned long arg1;
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sim_event *event;
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sim_watch_point *next;
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};
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typedef struct _sim_watchpoints {
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/* Pointer into the host's data structures specifying the
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address/size of the program-counter */
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/* FIXME: In the future this shall be generalized so that any of the
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N processors M registers can be watched */
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void *pc;
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int sizeof_pc;
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/* Pointer to the handler for interrupt watchpoints */
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/* FIXME: can this be done better? */
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/* NOTE: For the DATA arg, the handler is passed a (char**) pointer
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that is an offset into the INTERRUPT_NAMES vector. Use
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arithmetic to determine the interrupt-nr. */
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sim_event_handler *interrupt_handler;
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/* Pointer to a null terminated list of interrupt names */
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/* FIXME: can this be done better? Look at the PPC's interrupt
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mechanism and table for a rough idea of where it will go next */
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int nr_interrupts;
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const char **interrupt_names;
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/* active watchpoints */
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int last_point_nr;
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sim_watch_point *points;
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} sim_watchpoints;
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/* Watch install handler. */
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MODULE_INSTALL_FN sim_watchpoint_install;
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#endif /* SIM_WATCH_H */
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