db_print.c revision 5 
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/*
27 * HISTORY
28 * $Log: db_print.c,v $
29 * Revision 1.1  1992/03/25  21:45:22  pace
30 * Initial revision
31 *
32 * Revision 2.5  91/02/05  17:06:53  mrt
33 * 	Changed to new Mach copyright
34 * 	[91/01/31  16:18:56  mrt]
35 *
36 * Revision 2.4  90/10/25  14:43:54  rwd
37 * 	Changed db_show_regs to print unsigned.
38 * 	[90/10/19            rpd]
39 * 	Generalized the watchpoint support.
40 * 	[90/10/16            rwd]
41 *
42 * Revision 2.3  90/09/09  23:19:52  rpd
43 * 	Avoid totally incorrect guesses of symbol names for small values.
44 * 	[90/08/30  17:39:08  af]
45 *
46 * Revision 2.2  90/08/27  21:51:49  dbg
47 * 	Insist that 'show thread' be called with an explicit address.
48 * 	[90/08/22            dbg]
49 *
50 * 	Fix type for db_maxoff.
51 * 	[90/08/20            dbg]
52 *
53 * 	Do not dereference the "valuep" field of a variable directly,
54 * 	call the new db_read/write_variable functions instead.
55 * 	Reflected changes in symbol lookup functions.
56 * 	[90/08/20            af]
57 * 	Reduce lint.
58 * 	[90/08/10  14:33:44  dbg]
59 *
60 * 	Created.
61 * 	[90/07/25            dbg]
62 *
63 */
64/*
65 * 	Author: David B. Golub, Carnegie Mellon University
66 *	Date:	7/90
67 */
68
69/*
70 * Miscellaneous printing.
71 */
72#include "param.h"
73#include "proc.h"
74
75#include <machine/db_machdep.h>
76
77#include <ddb/db_lex.h>
78#include <ddb/db_variables.h>
79#include <ddb/db_sym.h>
80
81extern unsigned int	db_maxoff;
82
83void
84db_show_regs()
85{
86	int	(*func)();
87	register struct db_variable *regp;
88	db_expr_t	value, offset;
89	char *		name;
90
91	for (regp = db_regs; regp < db_eregs; regp++) {
92	    db_read_variable(regp, &value);
93	    db_printf("%-12s%#10n", regp->name, value);
94	    db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
95	    if (name != 0 && offset <= db_maxoff && offset != value) {
96		db_printf("\t%s", name);
97		if (offset != 0)
98		    db_printf("+%#r", offset);
99	    }
100	    db_printf("\n");
101	}
102	db_print_loc_and_inst(PC_REGS(DDB_REGS));
103}
104
105