165 lines
4.3 KiB
C
165 lines
4.3 KiB
C
/* $NetBSD: kvm_vax.c,v 1.7 1998/02/03 19:12:45 perry Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software developed by the Computer Systems
|
|
* Engineering group at Lawrence Berkeley Laboratory under DARPA contract
|
|
* BG 91-66 and contributed to Berkeley.
|
|
*
|
|
* 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 University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*/
|
|
|
|
/*
|
|
* VAX machine dependent routines for kvm. Hopefully, the forthcoming
|
|
* vm code will one day obsolete this module. Furthermore, I hope it
|
|
* gets here soon, because this basically is an error stub! (sorry)
|
|
* This code may not work anyway.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/user.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <nlist.h>
|
|
#include <stdlib.h>
|
|
#include <kvm.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_param.h>
|
|
|
|
#include <limits.h>
|
|
#include <db.h>
|
|
|
|
#include "kvm_private.h"
|
|
|
|
struct vmstate {
|
|
u_long end;
|
|
};
|
|
|
|
void
|
|
_kvm_freevtop(kd)
|
|
kvm_t *kd;
|
|
{
|
|
if (kd->vmst != 0)
|
|
free(kd->vmst);
|
|
}
|
|
|
|
int
|
|
_kvm_initvtop(kd)
|
|
kvm_t *kd;
|
|
{
|
|
struct vmstate *vm;
|
|
struct stat st;
|
|
struct nlist nlist[2];
|
|
|
|
vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm));
|
|
if (vm == 0)
|
|
return (-1);
|
|
|
|
kd->vmst = vm;
|
|
|
|
if (fstat(kd->pmfd, &st) < 0)
|
|
return (-1);
|
|
|
|
/* Get end of kernel address */
|
|
nlist[0].n_name = "_end";
|
|
nlist[1].n_name = 0;
|
|
if (kvm_nlist(kd, nlist) != 0) {
|
|
_kvm_err(kd, kd->program, "pmap_stod: no such symbol");
|
|
return (-1);
|
|
}
|
|
vm->end = (u_long)nlist[0].n_value;
|
|
|
|
return (0);
|
|
}
|
|
|
|
#define VA_OFF(va) (va & (NBPG - 1))
|
|
|
|
/*
|
|
* Translate a kernel virtual address to a physical address using the
|
|
* mapping information in kd->vm. Returns the result in pa, and returns
|
|
* the number of bytes that are contiguously available from this
|
|
* physical address. This routine is used only for crashdumps.
|
|
*/
|
|
int
|
|
_kvm_kvatop(kd, va, pa)
|
|
kvm_t *kd;
|
|
u_long va;
|
|
u_long *pa;
|
|
{
|
|
int end;
|
|
|
|
if (va < KERNBASE) {
|
|
_kvm_err(kd, 0, "invalid address (%x<%x)", va, KERNBASE);
|
|
return (0);
|
|
}
|
|
|
|
end = kd->vmst->end;
|
|
if (va >= end) {
|
|
_kvm_err(kd, 0, "invalid address (%x>=%x)", va, end);
|
|
return (0);
|
|
}
|
|
|
|
*pa = (va - KERNBASE);
|
|
return (end - va);
|
|
}
|
|
|
|
/*
|
|
* Translate a physical address to a file-offset in the crash-dump.
|
|
* XXX - crash-dumps doesn't work anyway.
|
|
*/
|
|
off_t
|
|
_kvm_pa2off(kd, pa)
|
|
kvm_t *kd;
|
|
u_long pa;
|
|
{
|
|
return(kd->dump_off + pa);
|
|
}
|
|
|
|
|
|
/*
|
|
* 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)
|
|
*/
|
|
int
|
|
_kvm_mdopen(kd)
|
|
kvm_t *kd;
|
|
{
|
|
|
|
kd->usrstack = USRSTACK;
|
|
kd->min_uva = VM_MIN_ADDRESS;
|
|
kd->max_uva = VM_MAXUSER_ADDRESS;
|
|
|
|
return (0);
|
|
}
|