181 lines
4.7 KiB
C
181 lines
4.7 KiB
C
/* $NetBSD: kvm_ns32k.c,v 1.17 2003/08/07 16:44:37 agc Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1989, 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. 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
#if 0
|
|
static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
|
|
#else
|
|
__RCSID("$NetBSD: kvm_ns32k.c,v 1.17 2003/08/07 16:44:37 agc Exp $");
|
|
#endif
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
/*
|
|
* ns32k machine dependent routines for kvm. Hopefully, the forthcoming
|
|
* vm code will one day obsolete this module.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/user.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <sys/core.h>
|
|
#include <sys/exec_aout.h>
|
|
#include <sys/kcore.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <limits.h>
|
|
#include <nlist.h>
|
|
#include <kvm.h>
|
|
|
|
#include <uvm/uvm_extern.h>
|
|
|
|
#include <db.h>
|
|
|
|
#include "kvm_private.h"
|
|
|
|
#include <machine/pmap.h>
|
|
#include <machine/pte.h>
|
|
#include <machine/kcore.h>
|
|
#include <machine/vmparam.h>
|
|
|
|
#ifndef btop
|
|
#define btop(x) (((unsigned)(x)) >> PGSHIFT) /* XXX */
|
|
#define ptob(x) ((caddr_t)((x) << PGSHIFT)) /* XXX */
|
|
#endif
|
|
|
|
#define KREAD(kd, addr, p)\
|
|
(kvm_read(kd, addr, (char *)(p), sizeof(*(p))) != sizeof(*(p)))
|
|
|
|
void
|
|
_kvm_freevtop(kd)
|
|
kvm_t *kd;
|
|
{
|
|
if (kd->vmst != 0)
|
|
free(kd->vmst);
|
|
}
|
|
|
|
int
|
|
_kvm_initvtop(kd)
|
|
kvm_t *kd;
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Translate a kernel virtual address to a physical address.
|
|
*/
|
|
int
|
|
_kvm_kvatop(kd, va, pa)
|
|
kvm_t *kd;
|
|
u_long va;
|
|
u_long *pa;
|
|
{
|
|
cpu_kcore_hdr_t *cpu_kh;
|
|
u_long offset;
|
|
u_long pte_pa;
|
|
u_long pde_pa;
|
|
pd_entry_t pde;
|
|
pt_entry_t pte;
|
|
|
|
if (ISALIVE(kd)) {
|
|
_kvm_err(kd, 0, "vatop called in live kernel!");
|
|
return(0);
|
|
}
|
|
|
|
offset = va & PGOFSET;
|
|
cpu_kh = kd->cpu_data;
|
|
|
|
/*
|
|
* If we are initializing (kernel page table descriptor pointer
|
|
* not yet set) * then return pa == va to avoid infinite recursion.
|
|
*/
|
|
if (cpu_kh->ptd == 0) {
|
|
*pa = va;
|
|
return (NBPG - offset);
|
|
}
|
|
|
|
pde_pa = _kvm_pa2off(kd, cpu_kh->ptd + sizeof(pt_entry_t) * pdei(va));
|
|
if (pread(kd->pmfd, &pde, sizeof(pde), (off_t)pde_pa) != sizeof(pde)) {
|
|
_kvm_syserr(kd, kd->program, "could not read PDE");
|
|
goto invalid;
|
|
}
|
|
if ((pde & PG_V) == 0)
|
|
goto invalid;
|
|
|
|
pte_pa = _kvm_pa2off(kd, (pde & PG_FRAME) + sizeof(pt_entry_t) * ptei(va));
|
|
if (pread(kd->pmfd, &pte, sizeof(pte), (off_t)pte_pa) != sizeof(pte)) {
|
|
_kvm_syserr(kd, kd->program, "could not read PTE");
|
|
goto invalid;
|
|
}
|
|
|
|
*pa = (pte & PG_FRAME) + offset;
|
|
return (NBPG - offset);
|
|
|
|
invalid:
|
|
_kvm_err(kd, 0, "invalid address (%lx)", va);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Translate a physical address to a file-offset in the crash dump.
|
|
*/
|
|
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);
|
|
}
|