65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* $NetBSD: aarch64.c,v 1.2 2022/06/07 08:08:31 ryo Exp $ */
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/*-
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* Copyright (c) 2022 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Ryo Shimizu.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: aarch64.c,v 1.2 2022/06/07 08:08:31 ryo Exp $");
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#endif /* not lint */
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#include <kvm.h>
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#include <nlist.h>
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#include <err.h>
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#include <stdlib.h>
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#include "extern.h"
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vaddr_t el0_trap;
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vaddr_t el1_trap;
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vaddr_t cpu_switchto_softint;
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static struct nlist nl[] = {
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{ .n_name = "el0_trap" }, /* 0 */
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{ .n_name = "el1_trap" }, /* 1 */
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{ .n_name = "cpu_switchto_softint" }, /* 2 */
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{ .n_name = NULL },
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};
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void
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db_mach_init(kvm_t *kd)
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{
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if (kvm_nlist(kd, nl) == -1)
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errx(EXIT_FAILURE, "kvm_nlist: %s", kvm_geterr(kd));
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el0_trap = nl[0].n_value;
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el1_trap = nl[1].n_value;
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cpu_switchto_softint = nl[2].n_value;
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}
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