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 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