1 /* $NetBSD: db_print.c,v 1.29 2020/03/10 15:58:37 christos Exp $ */
2
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 "AS IS"
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 * Author: David B. Golub, Carnegie Mellon University
29 * Date: 7/90
30 */
31
32 /*
33 * Miscellaneous printing.
34 */
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: db_print.c,v 1.29 2020/03/10 15:58:37 christos Exp $");
38
39 #include <sys/param.h>
40 #include <sys/proc.h>
41 #include <sys/cpu.h>
42
43 #include <ddb/ddb.h>
44
45 /*ARGSUSED*/
46 void
db_show_regs(db_expr_t addr,bool have_addr,db_expr_t count,const char * modif)47 db_show_regs(db_expr_t addr, bool have_addr,
48 db_expr_t count, const char *modif)
49 {
50 #ifdef _KERNEL
51 const struct db_variable *regp;
52 struct db_variable vs;
53 db_expr_t value, offset;
54 const char *name;
55
56 for (regp = db_regs; regp < db_eregs; regp++) {
57 vs = *regp;
58 vs.modif = modif;
59 db_read_variable(&vs, &value);
60 db_printf("%-12s%s", vs.name, db_num_to_str(value));
61 db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
62 if (name != NULL &&
63 (unsigned int) offset <= db_maxoff && offset != value) {
64 db_printf("\t%s", name);
65 if (offset != 0) {
66 char tbuf[24];
67
68 db_format_radix(tbuf, 24, offset, true);
69 db_printf("+%s", tbuf);
70 }
71 }
72 db_printf("\n");
73 }
74 db_print_loc_and_inst(PC_REGS(DDB_REGS));
75 #else
76 db_kernelonly();
77 #endif
78 }
79