db_break.h

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    1 /*-
    2  * SPDX-License-Identifier: MIT-CMU
    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
   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  * $FreeBSD$
   29  */
   30 
   31 /*
   32  *      Author: David B. Golub, Carnegie Mellon University
   33  *      Date:   7/90
   34  */
   35 #ifndef _DDB_DB_BREAK_H_
   36 #define _DDB_DB_BREAK_H_
   37 
   38 /*
   39  * Breakpoint.
   40  */
   41 
   42 #ifndef BKPT_INST_TYPE
   43 #define BKPT_INST_TYPE int
   44 #endif
   45 
   46 struct db_breakpoint {
   47         vm_map_t map;                   /* in this map */
   48         db_addr_t address;              /* set here */
   49         int     init_count;             /* number of times to skip bkpt */
   50         int     count;                  /* current count */
   51         int     flags;                  /* flags: */
   52 #define BKPT_SINGLE_STEP        0x2         /* to simulate single step */
   53 #define BKPT_TEMP               0x4         /* temporary */
   54         BKPT_INST_TYPE bkpt_inst;       /* saved instruction at bkpt */
   55         struct db_breakpoint *link;     /* link in in-use or free chain */
   56 };
   57 typedef struct db_breakpoint *db_breakpoint_t;
   58 
   59 void            db_clear_breakpoints(void);
   60 #ifdef SOFTWARE_SSTEP
   61 void            db_delete_temp_breakpoint(db_breakpoint_t);
   62 #endif
   63 db_breakpoint_t db_find_breakpoint_here(db_addr_t addr);
   64 void            db_set_breakpoints(void);
   65 #ifdef SOFTWARE_SSTEP
   66 db_breakpoint_t db_set_temp_breakpoint(db_addr_t);
   67 #endif
   68 
   69 #endif /* !_DDB_DB_BREAK_H_ */

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

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