db_print.c revision 36197 
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 *	$Id: db_print.c,v 1.15 1998/05/19 11:02:23 phk Exp $
27 */
28
29/*
30 * 	Author: David B. Golub, Carnegie Mellon University
31 *	Date:	7/90
32 */
33
34/*
35 * Miscellaneous printing.
36 */
37#include <sys/param.h>
38#include <sys/kernel.h>
39#include <sys/msgbuf.h>
40
41#include <ddb/ddb.h>
42#include <ddb/db_variables.h>
43#include <ddb/db_sym.h>
44
45void
46db_show_regs(dummy1, dummy2, dummy3, dummy4)
47	db_expr_t	dummy1;
48	boolean_t	dummy2;
49	db_expr_t	dummy3;
50	char *		dummy4;
51{
52	register struct db_variable *regp;
53	db_expr_t	value, offset;
54	char *		name;
55
56	for (regp = db_regs; regp < db_eregs; regp++) {
57	    db_read_variable(regp, &value);
58	    db_printf("%-12s%#10n", regp->name, value);
59	    db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
60	    if (name != 0 && offset <= db_maxoff && offset != value) {
61		db_printf("\t%s", name);
62		if (offset != 0)
63		    db_printf("+%+#n", offset);
64	    }
65	    db_printf("\n");
66	}
67	db_print_loc_and_inst(PC_REGS(DDB_REGS));
68}
69
70
71DB_SHOW_COMMAND(msgbuf, db_show_msgbuf)
72{
73	int i,j;
74
75	if (!msgbufmapped) {
76		db_printf("msgbuf not mapped yet\n");
77		return;
78	}
79	db_printf("msgbufp = %p\n", msgbufp);
80	db_printf("magic = %x, size = %d, r= %d, w = %d, ptr = %p\n",
81		msgbufp->msg_magic,
82		msgbufp->msg_size,
83		msgbufp->msg_bufr,
84		msgbufp->msg_bufx,
85		msgbufp->msg_ptr);
86	for (i = 0; i < msgbufp->msg_size; i++) {
87		j = msgbufp->msg_ptr[(i + msgbufp->msg_bufr) % msgbufp->msg_size];
88		if (j)
89			db_printf("%c", j);
90	}
91	db_printf("\n");
92}
93
94