The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/ddb/db_break.h

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    1 /*      $NetBSD: db_break.h,v 1.20 2007/02/22 04:38:04 matt 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_ */

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