117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*-
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* Copyright (C) 2006 Bruce M. Simpson.
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* All rights reserved.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* MIPS machine dependent routines for kvm.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/elf32.h>
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#include <sys/mman.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <machine/pmap.h>
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#include <db.h>
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#include <limits.h>
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#include <kvm.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "kvm_private.h"
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/* minidump must be the first item! */
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struct vmstate {
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int minidump; /* 1 = minidump mode */
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void *mmapbase;
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size_t mmapsize;
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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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if (kd->vmst != 0) {
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if (kd->vmst->minidump)
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return (_kvm_minidump_freevtop(kd));
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if (kd->vmst->mmapbase != NULL)
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munmap(kd->vmst->mmapbase, kd->vmst->mmapsize);
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free(kd->vmst);
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kd->vmst = NULL;
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}
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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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char minihdr[8];
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if (!kd->rawdump) {
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if (pread(kd->pmfd, &minihdr, 8, 0) == 8) {
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if (memcmp(&minihdr, "minidump", 8) == 0)
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return (_kvm_minidump_initvtop(kd));
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} else {
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_kvm_err(kd, kd->program, "cannot read header");
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return (-1);
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}
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}
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_kvm_err(kd, 0, "_kvm_initvtop: Unsupported image type");
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return (-1);
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}
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int
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_kvm_kvatop(kvm_t *kd, u_long va, off_t *pa)
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{
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if (kd->vmst->minidump)
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return _kvm_minidump_kvatop(kd, va, pa);
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_kvm_err(kd, 0, "_kvm_kvatop: Unsupported image type");
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return (0);
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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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#ifdef FBSD_NOT_YET
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int
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_kvm_mdopen(kvm_t *kd __unused)
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{
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return (0);
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}
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#endif
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