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kvm_m68k.c revision 1.10 
      1 /*	$NetBSD: kvm_m68k.c,v 1.10 1997/03/21 18:44:23 gwr Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Gordon W. Ross.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Run-time kvm dispatcher for m68k machines.
     41  * The actual MD code is in the files:
     42  * kvm_m68k_cmn.c kvm_sun3.c ...
     43  *
     44  * Note: This file has to build on ALL m68k machines,
     45  * so do NOT include any <machine/*.h> files here.
     46  */
     47 
     48 #include <sys/param.h>
     49 #include <sys/sysctl.h>
     50 
     51 #include <stdio.h>
     52 #include <string.h>
     53 #include <stdlib.h>
     54 
     55 #include <unistd.h>
     56 #include <limits.h>
     57 #include <nlist.h>
     58 #include <kvm.h>
     59 #include <db.h>
     60 
     61 #include "kvm_private.h"
     62 #include "kvm_m68k.h"
     63 
     64 /* Could put this in struct vmstate, but this is easier. */
     65 static struct kvm_ops *ops;
     66 
     67 struct name_ops {
     68 	char *name;
     69 	struct kvm_ops *ops;
     70 };
     71 
     72 static struct name_ops optbl[] = {
     73 	{ "amiga", &_kvm_ops_cmn },
     74 	{ "atari", &_kvm_ops_cmn },
     75 	{ "sun3",  &_kvm_ops_sun3 },
     76 	{ "sun3x",  &_kvm_ops_sun3x },
     77 	{ NULL, NULL },
     78 };
     79 
     80 
     81 /*
     82  * Prepare for translation of kernel virtual addresses into offsets
     83  * into crash dump files.  This is where we do the dispatch work.
     84  */
     85 int
     86 _kvm_initvtop(kd)
     87 	kvm_t *kd;
     88 {
     89 	char machine[256];
     90 	int mib[2], len, rval;
     91 	struct name_ops *nop;
     92 
     93 	/* Which set of kvm functions should we use? */
     94 	mib[0] = CTL_HW;
     95 	mib[1] = HW_MACHINE;
     96 	len = sizeof(machine);
     97 	if (sysctl(mib, 2, machine, &len, NULL, 0) == -1)
     98 		return (-1);
     99 
    100 	for (nop = optbl; nop->name; nop++)
    101 		if (!strcmp(machine, nop->name))
    102 			goto found;
    103 	_kvm_err(kd, 0, "%s: unknown machine!", machine);
    104 	return (-1);
    105 
    106 found:
    107 	ops = nop->ops;
    108 	return ((ops->initvtop)(kd));
    109 }
    110 
    111 void
    112 _kvm_freevtop(kd)
    113 	kvm_t *kd;
    114 {
    115 	(ops->freevtop)(kd);
    116 }
    117 
    118 int
    119 _kvm_kvatop(kd, va, pap)
    120 	kvm_t *kd;
    121 	u_long va;
    122 	u_long *pap;
    123 {
    124 	return ((ops->kvatop)(kd, va, pap));
    125 }
    126 
    127 off_t
    128 _kvm_pa2off(kd, pa)
    129 	kvm_t	*kd;
    130 	u_long	pa;
    131 {
    132 	return ((ops->pa2off)(kd, pa));
    133 }
    134