sys/ddb/db_break.h

   1 /*      $NetBSD: db_break.h,v 1.19 2007/02/21 22:59:56 thorpej Exp $    */
   2
   3 /*
   4  * Mach Operating System
   5  * Copyright (c) 1991,1990 Carnegie Mellon University
   6  * All Rights Reserved.
   7  *
   8  * Permission to use, copy, modify and distribute this software and its
   9  * documentation is hereby granted, provided that both the copyright
  10  * notice and this permission notice appear in all copies of the
  11  * software, derivative works or modified versions, and any portions
  12  * thereof, and that both notices appear in supporting documentation.
  13  *
  14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  16  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  17  *
  18  * Carnegie Mellon requests users of this software to return to
  19  *
  20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  21  *  School of Computer Science
  22  *  Carnegie Mellon University
  23  *  Pittsburgh PA 15213-3890
  24  *
  25  * any improvements or extensions that they make and grant Carnegie the
  26  * rights to redistribute these changes.
  27  *
  28  *      Author: David B. Golub, Carnegie Mellon University
  29  *      Date:   7/90
  30  */
  31
  32 #ifndef _DDB_DB_BREAK_H_
  33 #define _DDB_DB_BREAK_H_
  34
  35 #include <uvm/uvm_extern.h>
  36
  37 /*
  38  * Breakpoints.
  39  */
  40 typedef struct db_breakpoint {
  41         struct vm_map *map;                     /* in this map */
  42         db_addr_t address;              /* set here */
  43         int     init_count;             /* number of times to skip bkpt */
  44         int     count;                  /* current count */
  45         int     flags;                  /* flags: */
  46 #define BKPT_SINGLE_STEP        0x2         /* to simulate single step */
  47 #define BKPT_TEMP               0x4         /* temporary */
  48         db_expr_t bkpt_inst;            /* saved instruction at bkpt */
  49         struct db_breakpoint *link;     /* link in in-use or free chain */
  50 } *db_breakpoint_t;
  51
  52 db_breakpoint_t db_find_breakpoint_here(db_addr_t);
  53 void            db_set_breakpoints(void);
  54 void            db_clear_breakpoints(void);
  55 void            db_delete_cmd(db_expr_t, bool, db_expr_t, const char *);
  56 void            db_breakpoint_cmd(db_expr_t, bool, db_expr_t, const char *);
  57 void            db_listbreak_cmd(db_expr_t, bool, db_expr_t, const char *);
  58 bool            db_map_equal(struct vm_map *, struct vm_map *);
  59 bool            db_map_current(struct vm_map *);
  60 struct vm_map  *db_map_addr(vaddr_t);
  61
  62 #endif  /* _DDB_DB_BREAK_H_ */