mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*-
|
|
* 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
|