db_trap.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*
    2  * Mach Operating System
    3  * Copyright (c) 1991,1990 Carnegie Mellon University
    4  * All Rights Reserved.
    5  *
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  *
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  *
   16  * Carnegie Mellon requests users of this software to return to
   17  *
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  *
   23  * any improvements or extensions that they make and grant Carnegie the
   24  * rights to redistribute these changes.
   25  *
   26  * $FreeBSD: releng/5.1/sys/ddb/db_trap.c 79418 2001-07-08 04:56:07Z julian $
   27  */
   28 
   29 /*
   30  *      Author: David B. Golub, Carnegie Mellon University
   31  *      Date:   7/90
   32  */
   33 
   34 /*
   35  * Trap entry point to kernel debugger.
   36  */
   37 #include <sys/param.h>
   38 #include <sys/systm.h>
   39 
   40 #include <ddb/ddb.h>
   41 #include <ddb/db_command.h>
   42 
   43 #include <machine/setjmp.h>
   44 
   45 extern jmp_buf  db_jmpbuf;
   46 
   47 void
   48 db_trap(type, code)
   49         int     type, code;
   50 {
   51         boolean_t       bkpt;
   52         boolean_t       watchpt;
   53 
   54         bkpt = IS_BREAKPOINT_TRAP(type, code);
   55         watchpt = IS_WATCHPOINT_TRAP(type, code);
   56 
   57         if (db_stop_at_pc(&bkpt)) {
   58             if (db_inst_count) {
   59                 db_printf("After %d instructions (%d loads, %d stores),\n",
   60                           db_inst_count, db_load_count, db_store_count);
   61             }
   62             if (bkpt)
   63                 db_printf("Breakpoint at\t");
   64             else if (watchpt)
   65                 db_printf("Watchpoint at\t");
   66             else
   67                 db_printf("Stopped at\t");
   68             db_dot = PC_REGS(DDB_REGS);
   69             if (setjmp(db_jmpbuf) == 0)
   70                 db_print_loc_and_inst(db_dot);
   71 
   72             db_command_loop();
   73         }
   74 
   75         db_restart_at_pc(watchpt);
   76 }

Cache object: 8b020ea84701659e3e8a51927dc3dfcd

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/ddb/db_trap.c

FreeBSD/Linux Kernel Cross Reference
sys/ddb/db_trap.c