1 /* $NetBSD: powerpc.c,v 1.1 2023/04/12 17:53:32 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2023 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __RCSID("$NetBSD: powerpc.c,v 1.1 2023/04/12 17:53:32 riastradh Exp $");
31
32 #include <err.h>
33 #include <kvm.h>
34 #include <stdlib.h>
35
36 #include "extern.h"
37
38 enum {
39 N_TRAPEXIT,
40 N_SCTRAPEXIT,
41 N_INTRCALL,
42 N
43 };
44
45 void *trapexit;
46 void *sctrapexit;
47 void *intrcall;
48
49 static struct nlist nl[] = {
50 [N_TRAPEXIT] = { .n_name = "trapexit" },
51 [N_SCTRAPEXIT] = { .n_name = "sctrapexit" },
52 [N_INTRCALL] = { .n_name = "intrcall" },
53 [N] = { .n_name = NULL },
54 };
55
56 void
db_mach_init(kvm_t * kd)57 db_mach_init(kvm_t *kd)
58 {
59
60 if (kvm_nlist(kd, nl) == -1)
61 errx(EXIT_FAILURE, "kvm_nlist: %s", kvm_geterr(kd));
62
63 trapexit = (void *)nl[N_TRAPEXIT].n_value;
64 sctrapexit = (void *)nl[N_SCTRAPEXIT].n_value;
65 intrcall = (void *)nl[N_INTRCALL].n_value;
66 }
67