db_trap.c revision 1.2
1 1.1 cgd /* 2 1.1 cgd * Mach Operating System 3 1.1 cgd * Copyright (c) 1991,1990 Carnegie Mellon University 4 1.1 cgd * All Rights Reserved. 5 1.1 cgd * 6 1.1 cgd * Permission to use, copy, modify and distribute this software and its 7 1.1 cgd * documentation is hereby granted, provided that both the copyright 8 1.1 cgd * notice and this permission notice appear in all copies of the 9 1.1 cgd * software, derivative works or modified versions, and any portions 10 1.1 cgd * thereof, and that both notices appear in supporting documentation. 11 1.1 cgd * 12 1.1 cgd * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 13 1.1 cgd * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 1.1 cgd * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 1.1 cgd * 16 1.1 cgd * Carnegie Mellon requests users of this software to return to 17 1.1 cgd * 18 1.1 cgd * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 19 1.1 cgd * School of Computer Science 20 1.1 cgd * Carnegie Mellon University 21 1.1 cgd * Pittsburgh PA 15213-3890 22 1.1 cgd * 23 1.1 cgd * any improvements or extensions that they make and grant Carnegie the 24 1.1 cgd * rights to redistribute these changes. 25 1.1 cgd */ 26 1.1 cgd /* 27 1.2 cgd * $Id: db_trap.c,v 1.2 1993/05/20 03:39:34 cgd Exp $ 28 1.2 cgd * 29 1.1 cgd * HISTORY 30 1.1 cgd * $Log: db_trap.c,v $ 31 1.2 cgd * Revision 1.2 1993/05/20 03:39:34 cgd 32 1.2 cgd * add explicit rcs id 33 1.2 cgd * 34 1.1 cgd * Revision 1.1.1.1 1993/03/21 09:46:27 cgd 35 1.1 cgd * initial import of 386bsd-0.1 sources 36 1.1 cgd * 37 1.1 cgd * Revision 1.1 1992/03/25 21:45:31 pace 38 1.1 cgd * Initial revision 39 1.1 cgd * 40 1.1 cgd * Revision 2.5 91/02/05 17:07:16 mrt 41 1.1 cgd * Changed to new Mach copyright 42 1.1 cgd * [91/01/31 16:19:35 mrt] 43 1.1 cgd * 44 1.1 cgd * Revision 2.4 91/01/08 15:09:17 rpd 45 1.1 cgd * Changed db_stop_at_pc's arguments. 46 1.1 cgd * Print db_inst_count, db_load_count, db_store_count. 47 1.1 cgd * [90/11/27 rpd] 48 1.1 cgd * 49 1.1 cgd * Revision 2.3 90/10/25 14:44:11 rwd 50 1.1 cgd * From rpd. 51 1.1 cgd * [90/10/19 17:03:17 rwd] 52 1.1 cgd * 53 1.1 cgd * Generalized the watchpoint support. 54 1.1 cgd * [90/10/16 rwd] 55 1.1 cgd * Added watchpoint support. 56 1.1 cgd * [90/10/16 rpd] 57 1.1 cgd * 58 1.1 cgd * Revision 2.2 90/08/27 21:52:52 dbg 59 1.1 cgd * Assign to db_dot before calling the print function. 60 1.1 cgd * [90/08/20 af] 61 1.1 cgd * Reduce lint. 62 1.1 cgd * [90/08/07 dbg] 63 1.1 cgd * Created. 64 1.1 cgd * [90/07/25 dbg] 65 1.1 cgd * 66 1.1 cgd */ 67 1.1 cgd /* 68 1.1 cgd * Author: David B. Golub, Carnegie Mellon University 69 1.1 cgd * Date: 7/90 70 1.1 cgd */ 71 1.1 cgd 72 1.1 cgd /* 73 1.1 cgd * Trap entry point to kernel debugger. 74 1.1 cgd */ 75 1.1 cgd #include "param.h" 76 1.1 cgd #include "proc.h" 77 1.1 cgd #include <ddb/db_command.h> 78 1.1 cgd #include <ddb/db_break.h> 79 1.1 cgd 80 1.1 cgd extern void db_restart_at_pc(); 81 1.1 cgd extern boolean_t db_stop_at_pc(); 82 1.1 cgd 83 1.1 cgd extern int db_inst_count; 84 1.1 cgd extern int db_load_count; 85 1.1 cgd extern int db_store_count; 86 1.1 cgd 87 1.1 cgd db_trap(type, code) 88 1.1 cgd int type, code; 89 1.1 cgd { 90 1.1 cgd boolean_t bkpt; 91 1.1 cgd boolean_t watchpt; 92 1.1 cgd 93 1.1 cgd bkpt = IS_BREAKPOINT_TRAP(type, code); 94 1.1 cgd watchpt = IS_WATCHPOINT_TRAP(type, code); 95 1.1 cgd 96 1.1 cgd if (db_stop_at_pc(&bkpt)) { 97 1.1 cgd if (db_inst_count) { 98 1.1 cgd db_printf("After %d instructions (%d loads, %d stores),\n", 99 1.1 cgd db_inst_count, db_load_count, db_store_count); 100 1.1 cgd } 101 1.1 cgd if (bkpt) 102 1.1 cgd db_printf("Breakpoint at\t"); 103 1.1 cgd else if (watchpt) 104 1.1 cgd db_printf("Watchpoint at\t"); 105 1.1 cgd else 106 1.1 cgd db_printf("Stopped at\t"); 107 1.1 cgd db_dot = PC_REGS(DDB_REGS); 108 1.1 cgd db_print_loc_and_inst(db_dot); 109 1.1 cgd 110 1.1 cgd db_command_loop(); 111 1.1 cgd } 112 113 db_restart_at_pc(watchpt); 114 } 115
Indexes created Mon Oct 13 00:09:54 GMT 2025