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/*-
* Copyright (C) 2006 Bruce M. Simpson.
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/*
* MIPS machine dependent routines for kvm.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/elf32.h>
#include <sys/mman.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <machine/pmap.h>
#include <db.h>
#include <limits.h>
#include <kvm.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "kvm_private.h"
/* minidump must be the first item! */
struct vmstate {
int minidump; /* 1 = minidump mode */
void *mmapbase;
size_t mmapsize;
};
void
_kvm_freevtop(kvm_t *kd)
{
if (kd->vmst != 0) {
if (kd->vmst->minidump)
return (_kvm_minidump_freevtop(kd));
if (kd->vmst->mmapbase != NULL)
munmap(kd->vmst->mmapbase, kd->vmst->mmapsize);
free(kd->vmst);
kd->vmst = NULL;
}
}
int
_kvm_initvtop(kvm_t *kd)
{
char minihdr[8];
if (!kd->rawdump) {
if (pread(kd->pmfd, &minihdr, 8, 0) == 8) {
if (memcmp(&minihdr, "minidump", 8) == 0)
return (_kvm_minidump_initvtop(kd));
} else {
_kvm_err(kd, kd->program, "cannot read header");
return (-1);
}
}
_kvm_err(kd, 0, "_kvm_initvtop: Unsupported image type");
return (-1);
}
int
_kvm_kvatop(kvm_t *kd, u_long va, off_t *pa)
{
if (kd->vmst->minidump)
return _kvm_minidump_kvatop(kd, va, pa);
_kvm_err(kd, 0, "_kvm_kvatop: Unsupported image type");
return (0);
}
/*
* Machine-dependent initialization for ALL open kvm descriptors,
* not just those for a kernel crash dump. Some architectures
* have to deal with these NOT being constants! (i.e. m68k)
*/
#ifdef FBSD_NOT_YET
int
_kvm_mdopen(kvm_t *kd __unused)
{
return (0);
}
#endif
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