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+/*
+ * Mach Operating System
+ * Copyright (c) 1991,1990 Carnegie Mellon University
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
+ * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
+ * School of Computer Science
+ * Carnegie Mellon University
+ * Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+/*
+ * HISTORY
+ * $Log: db_break.h,v $
+ * Revision 1.1 1992/03/25 21:44:59 pace
+ * Initial revision
+ *
+ * Revision 2.4 91/02/05 17:06:06 mrt
+ * Changed to new Mach copyright
+ * [91/01/31 16:17:10 mrt]
+ *
+ * Revision 2.3 90/10/25 14:43:40 rwd
+ * Added map field to breakpoints.
+ * [90/10/18 rpd]
+ *
+ * Revision 2.2 90/08/27 21:50:00 dbg
+ * Modularized typedef names.
+ * [90/08/20 af]
+ * Add external defintions.
+ * [90/08/07 dbg]
+ * Created.
+ * [90/07/25 dbg]
+ *
+ */
+/*
+ * Author: David B. Golub, Carnegie Mellon University
+ * Date: 7/90
+ */
+#ifndef _DDB_DB_BREAK_H_
+#define _DDB_DB_BREAK_H_
+
+#include <vm/vm_map.h>
+#include <machine/db_machdep.h>
+
+/*
+ * Breakpoint.
+ */
+
+struct db_breakpoint {
+ vm_map_t map; /* in this map */
+ db_addr_t address; /* set here */
+ int init_count; /* number of times to skip bkpt */
+ int count; /* current count */
+ int flags; /* flags: */
+#define BKPT_SINGLE_STEP 0x2 /* to simulate single step */
+#define BKPT_TEMP 0x4 /* temporary */
+ int bkpt_inst; /* saved instruction at bkpt */
+ struct db_breakpoint *link; /* link in in-use or free chain */
+};
+typedef struct db_breakpoint *db_breakpoint_t;
+
+extern db_breakpoint_t db_find_breakpoint();
+extern db_breakpoint_t db_find_breakpoint_here();
+extern void db_set_breakpoints();
+extern void db_clear_breakpoints();
+
+extern db_breakpoint_t db_set_temp_breakpoint(/* db_addr_t addr */);
+extern void db_delete_temp_breakpoint(/* db_breakpoint_t bkpt */);
+
+#endif _DDB_DB_BREAK_H_