lib/libkvm/kvm_sh3.c

   1 /*      $NetBSD: kvm_sh3.c,v 1.9 2014/02/19 20:21:22 dsl Exp $  */
   2
   3 /*-
   4  * Copyright (c) 1989, 1992, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software developed by the Computer Systems
   8  * Engineering group at Lawrence Berkeley Laboratory under DARPA contract
   9  * BG 91-66 and contributed to Berkeley.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #if defined(LIBC_SCCS) && !defined(lint)
  38 #if 0
  39 static char sccsid[] = "@(#)kvm_hp300.c 8.1 (Berkeley) 6/4/93";
  40 #else
  41 __RCSID("$NetBSD: kvm_sh3.c,v 1.9 2014/02/19 20:21:22 dsl Exp $");
  42 #endif
  43 #endif /* LIBC_SCCS and not lint */
  44
  45 /*
  46  * SH3 machine dependent routines for kvm.
  47  */
  48
  49 #include <sys/param.h>
  50 #include <sys/proc.h>
  51 #include <sys/stat.h>
  52 #include <sys/kcore.h>
  53 #include <sys/types.h>
  54
  55 #include <stdlib.h>
  56 #include <unistd.h>
  57 #include <nlist.h>
  58 #include <kvm.h>
  59
  60 #include <uvm/uvm_extern.h>
  61
  62 #include <limits.h>
  63 #include <db.h>
  64
  65 #include "kvm_private.h"
  66
  67 #include <machine/pte.h>
  68 #include <machine/vmparam.h>
  69
  70 #ifndef btop
  71 #define btop(x)         (((unsigned)(x)) >> PGSHIFT)    /* XXX */
  72 #define ptob(x)         ((caddr_t)((x) << PGSHIFT))     /* XXX */
  73 #endif
  74
  75 void
  76 _kvm_freevtop(kvm_t *kd)
  77 {
  78
  79         /* Not actually used for anything right now, but safe. */
  80         if (kd->vmst != 0)
  81                 free(kd->vmst);
  82 }
  83
  84 /*ARGSUSED*/
  85 int
  86 _kvm_initvtop(kvm_t *kd)
  87 {
  88
  89         return (0);
  90 }
  91
  92 /*
  93  * Translate a kernel virtual address to a physical address.
  94  */
  95 int
  96 _kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa)
  97 {
  98         _kvm_err(kd, 0, "vatop not yet implemented!");
  99         return 0;
 100 }
 101
 102 /*
 103  * Translate a physical address to a file-offset in the crash dump.
 104  */
 105 off_t
 106 _kvm_pa2off(kvm_t *kd, paddr_t pa)
 107 {
 108         _kvm_err(kd, 0, "pa2off not yet implemented!");
 109         return 0;
 110 }
 111
 112 /*
 113  * Machine-dependent initialization for ALL open kvm descriptors,
 114  * not just those for a kernel crash dump.  Some architectures
 115  * have to deal with these NOT being constants!  (i.e. m68k)
 116  */
 117 int
 118 _kvm_mdopen(kvm_t *kd)
 119 {
 120
 121         kd->usrstack = USRSTACK;
 122         kd->min_uva = VM_MIN_ADDRESS;
 123         kd->max_uva = VM_MAXUSER_ADDRESS;
 124
 125         return (0);
 126 }