b6c0c9a270
by the crash dump itself to facilitate cross-analysis. The m68k_cmn for Utah pmaps reads MMU configuration from the crash dump to that this works on 4k and 8k h/w page size systems.
153 lines
3.9 KiB
C
153 lines
3.9 KiB
C
/* $NetBSD: kvm_m68k.c,v 1.11 1997/04/09 21:15:50 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Gordon W. Ross and Jason R. Thorpe.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Run-time kvm dispatcher for m68k machines.
|
|
* The actual MD code is in the files:
|
|
* kvm_m68k_cmn.c kvm_sun3.c ...
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/kcore.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <unistd.h>
|
|
#include <limits.h>
|
|
#include <nlist.h>
|
|
#include <kvm.h>
|
|
#include <db.h>
|
|
|
|
#include <machine/kcore.h>
|
|
|
|
#include "kvm_private.h"
|
|
#include "kvm_m68k.h"
|
|
|
|
struct name_ops {
|
|
const char *name;
|
|
struct kvm_ops *ops;
|
|
};
|
|
|
|
/*
|
|
* Match specific kcore types first, falling into a default.
|
|
*/
|
|
static struct name_ops optbl[] = {
|
|
{ "sun3", &_kvm_ops_sun3 },
|
|
{ "sun3x", &_kvm_ops_sun3x },
|
|
{ NULL, &_kvm_ops_cmn },
|
|
};
|
|
|
|
/*
|
|
* Prepare for translation of kernel virtual addresses into offsets
|
|
* into crash dump files. This is where we do the dispatch work.
|
|
*/
|
|
int
|
|
_kvm_initvtop(kd)
|
|
kvm_t *kd;
|
|
{
|
|
cpu_kcore_hdr_t *h;
|
|
struct name_ops *nop;
|
|
struct vmstate *vm;
|
|
|
|
vm = (struct vmstate *)_kvm_malloc(kd, sizeof (*vm));
|
|
if (vm == 0)
|
|
return (-1);
|
|
|
|
kd->vmst = vm;
|
|
|
|
/*
|
|
* Use the machine name in the kcore header to determine
|
|
* our ops vector. When we reach an ops vector with
|
|
* no name, we've found a default.
|
|
*/
|
|
h = kd->cpu_data;
|
|
h->name[sizeof(h->name) - 1] = '\0'; /* sanity */
|
|
for (nop = optbl; nop->name != NULL; nop++)
|
|
if (strcmp(nop->name, h->name) == 0)
|
|
break;
|
|
|
|
vm->ops = nop->ops;
|
|
|
|
/*
|
|
* Compute pgshift and pgofset.
|
|
*/
|
|
for (vm->pgshift = 0; (1 << vm->pgshift) < h->page_size; vm->pgshift++)
|
|
/* nothing */ ;
|
|
if ((1 << vm->pgshift) != h->page_size)
|
|
goto bad;
|
|
vm->pgofset = h->page_size - 1;
|
|
|
|
if ((vm->ops->initvtop)(kd) < 0)
|
|
goto bad;
|
|
|
|
return (0);
|
|
|
|
bad:
|
|
kd->vmst = NULL;
|
|
free(vm);
|
|
return (-1);
|
|
}
|
|
|
|
void
|
|
_kvm_freevtop(kd)
|
|
kvm_t *kd;
|
|
{
|
|
(kd->vmst->ops->freevtop)(kd);
|
|
free(kd->vmst);
|
|
}
|
|
|
|
int
|
|
_kvm_kvatop(kd, va, pap)
|
|
kvm_t *kd;
|
|
u_long va;
|
|
u_long *pap;
|
|
{
|
|
return ((kd->vmst->ops->kvatop)(kd, va, pap));
|
|
}
|
|
|
|
off_t
|
|
_kvm_pa2off(kd, pa)
|
|
kvm_t *kd;
|
|
u_long pa;
|
|
{
|
|
return ((kd->vmst->ops->pa2off)(kd, pa));
|
|
}
|