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      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