962a341df6
-int _kvm_kvatop(kvm_t *, u_long, u_long *); -off_t _kvm_pa2off(kvm_t *, u_long); +int _kvm_kvatop(kvm_t *, vaddr_t, paddr_t *); +off_t _kvm_pa2off(kvm_t *, paddr_t); Basically, use vaddr_t for VA and paddr_t for PA. In addition, for variables representing addresses, use paddr_t or vaddr_t, depending on the context. For most arches, vaddr_t and paddr_t are equivalent to unsigned long. However, the change was needed for exotic situations, like i386 PAE, were unsigned long is not suitable for PA which are 64 bits long. As this required a complete change of the function prototypes, all arches had to be adapted accordingly. Core files from before this commit should still work with the new code; I did not see any direct dependency between core's structure and kvatop/pa2off. The change was compile tested for all arches, as it impacts all of them. See also: http://mail-index.netbsd.org/current-users/2010/09/07/msg014249.html
170 lines
4.2 KiB
C
170 lines
4.2 KiB
C
/* $NetBSD: kvm_m68k.c,v 1.18 2010/09/20 23:23:16 jym Exp $ */
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/*-
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* Copyright (c) 1997 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 Gordon W. Ross and Jason R. Thorpe.
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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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/*
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* Run-time kvm dispatcher for m68k machines.
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* The actual MD code is in the files:
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* kvm_m68k_cmn.c kvm_sun3.c ...
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*
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* Note: This file has to build on ALL m68k machines,
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* so do NOT include any <machine/[*].h> files here.
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*/
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#include <sys/param.h>
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#include <sys/exec.h>
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#include <sys/kcore.h>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <limits.h>
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#include <nlist.h>
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#include <kvm.h>
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#include <db.h>
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#include <m68k/kcore.h>
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#include "kvm_private.h"
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#include "kvm_m68k.h"
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struct name_ops {
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const char *name;
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struct kvm_ops *ops;
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};
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/*
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* Match specific kcore types first, falling into a default.
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*/
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static struct name_ops optbl[] = {
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{ "sun2", &_kvm_ops_sun2 },
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{ "sun3", &_kvm_ops_sun3 },
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{ "sun3x", &_kvm_ops_sun3x },
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{ NULL, &_kvm_ops_cmn },
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};
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/*
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* Prepare for translation of kernel virtual addresses into offsets
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* into crash dump files. This is where we do the dispatch work.
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*/
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int
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_kvm_initvtop(kvm_t *kd)
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{
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cpu_kcore_hdr_t *h;
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struct name_ops *nop;
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struct vmstate *vm;
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vm = (struct vmstate *)_kvm_malloc(kd, sizeof (*vm));
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if (vm == 0)
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return (-1);
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kd->vmst = vm;
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/*
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* Use the machine name in the kcore header to determine
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* our ops vector. When we reach an ops vector with
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* no name, we've found a default.
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*/
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h = kd->cpu_data;
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h->name[sizeof(h->name) - 1] = '\0'; /* sanity */
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for (nop = optbl; nop->name != NULL; nop++)
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if (strcmp(nop->name, h->name) == 0)
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break;
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vm->ops = nop->ops;
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/*
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* Compute pgshift and pgofset.
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*/
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for (vm->pgshift = 0; (1 << vm->pgshift) < h->page_size; vm->pgshift++)
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/* nothing */ ;
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if ((1 << vm->pgshift) != h->page_size)
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goto bad;
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vm->pgofset = h->page_size - 1;
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if ((vm->ops->initvtop)(kd) < 0)
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goto bad;
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return (0);
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bad:
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kd->vmst = NULL;
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free(vm);
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return (-1);
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}
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void
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_kvm_freevtop(kvm_t *kd)
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{
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(kd->vmst->ops->freevtop)(kd);
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free(kd->vmst);
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}
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int
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_kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pap)
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{
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return ((kd->vmst->ops->kvatop)(kd, va, pap));
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}
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off_t
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_kvm_pa2off(kvm_t *kd, paddr_t pa)
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{
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return ((kd->vmst->ops->pa2off)(kd, pa));
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}
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/*
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* Machine-dependent initialization for ALL open kvm descriptors,
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* not just those for a kernel crash dump. Some architectures
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* have to deal with these NOT being constants! (i.e. m68k)
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*/
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int
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_kvm_mdopen(kvm_t *kd)
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{
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u_long max_uva;
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extern struct ps_strings *__ps_strings;
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#if 0 /* XXX - These vary across m68k machines... */
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kd->usrstack = USRSTACK;
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kd->min_uva = VM_MIN_ADDRESS;
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kd->max_uva = VM_MAXUSER_ADDRESS;
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#endif
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/* This is somewhat hack-ish, but it works. */
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max_uva = (u_long) (__ps_strings + 1);
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kd->usrstack = max_uva;
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kd->max_uva = max_uva;
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kd->min_uva = 0;
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return (0);
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}
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