kvm_m68k.c revision 1.15.2.2
1 1.15.2.2 fredette /* $NetBSD: kvm_m68k.c,v 1.15.2.2 2001/05/21 14:56:30 fredette Exp $ */ 2 1.15.2.2 fredette 3 1.15.2.2 fredette /*- 4 1.15.2.2 fredette * Copyright (c) 1997 The NetBSD Foundation, Inc. 5 1.15.2.2 fredette * All rights reserved. 6 1.15.2.2 fredette * 7 1.15.2.2 fredette * This code is derived from software contributed to The NetBSD Foundation 8 1.15.2.2 fredette * by Gordon W. Ross and Jason R. Thorpe. 9 1.15.2.2 fredette * 10 1.15.2.2 fredette * Redistribution and use in source and binary forms, with or without 11 1.15.2.2 fredette * modification, are permitted provided that the following conditions 12 1.15.2.2 fredette * are met: 13 1.15.2.2 fredette * 1. Redistributions of source code must retain the above copyright 14 1.15.2.2 fredette * notice, this list of conditions and the following disclaimer. 15 1.15.2.2 fredette * 2. Redistributions in binary form must reproduce the above copyright 16 1.15.2.2 fredette * notice, this list of conditions and the following disclaimer in the 17 1.15.2.2 fredette * documentation and/or other materials provided with the distribution. 18 1.15.2.2 fredette * 3. All advertising materials mentioning features or use of this software 19 1.15.2.2 fredette * must display the following acknowledgement: 20 1.15.2.2 fredette * This product includes software developed by the NetBSD 21 1.15.2.2 fredette * Foundation, Inc. and its contributors. 22 1.15.2.2 fredette * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.15.2.2 fredette * contributors may be used to endorse or promote products derived 24 1.15.2.2 fredette * from this software without specific prior written permission. 25 1.15.2.2 fredette * 26 1.15.2.2 fredette * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.15.2.2 fredette * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.15.2.2 fredette * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.15.2.2 fredette * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.15.2.2 fredette * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.15.2.2 fredette * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.15.2.2 fredette * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.15.2.2 fredette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.15.2.2 fredette * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.15.2.2 fredette * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.15.2.2 fredette * POSSIBILITY OF SUCH DAMAGE. 37 1.15.2.2 fredette */ 38 1.15.2.2 fredette 39 1.15.2.2 fredette /* 40 1.15.2.2 fredette * Run-time kvm dispatcher for m68k machines. 41 1.15.2.2 fredette * The actual MD code is in the files: 42 1.15.2.2 fredette * kvm_m68k_cmn.c kvm_sun3.c ... 43 1.15.2.2 fredette * 44 1.15.2.2 fredette * Note: This file has to build on ALL m68k machines, 45 1.15.2.2 fredette * so do NOT include any <machine/[*].h> files here. 46 1.15.2.2 fredette */ 47 1.15.2.2 fredette 48 1.15.2.2 fredette #include <sys/param.h> 49 1.15.2.2 fredette #include <sys/exec.h> 50 1.15.2.2 fredette #include <sys/kcore.h> 51 1.15.2.2 fredette #include <sys/sysctl.h> 52 1.15.2.2 fredette 53 1.15.2.2 fredette #include <stdio.h> 54 1.15.2.2 fredette #include <string.h> 55 1.15.2.2 fredette #include <stdlib.h> 56 1.15.2.2 fredette 57 1.15.2.2 fredette #include <unistd.h> 58 1.15.2.2 fredette #include <limits.h> 59 1.15.2.2 fredette #include <nlist.h> 60 1.15.2.2 fredette #include <kvm.h> 61 1.15.2.2 fredette #include <db.h> 62 1.15.2.2 fredette 63 1.15.2.2 fredette #include <m68k/kcore.h> 64 1.15.2.2 fredette 65 1.15.2.2 fredette #include "kvm_private.h" 66 1.15.2.2 fredette #include "kvm_m68k.h" 67 1.15.2.2 fredette 68 1.15.2.2 fredette struct name_ops { 69 1.15.2.2 fredette const char *name; 70 1.15.2.2 fredette struct kvm_ops *ops; 71 1.15.2.2 fredette }; 72 1.15.2.2 fredette 73 1.15.2.2 fredette /* 74 1.15.2.2 fredette * Match specific kcore types first, falling into a default. 75 1.15.2.2 fredette */ 76 1.15.2.2 fredette static struct name_ops optbl[] = { 77 1.15.2.2 fredette { "sun2", &_kvm_ops_sun2 }, 78 1.15.2.2 fredette { "sun3", &_kvm_ops_sun3 }, 79 1.15.2.2 fredette { "sun3x", &_kvm_ops_sun3x }, 80 1.15.2.2 fredette { NULL, &_kvm_ops_cmn }, 81 1.15.2.2 fredette }; 82 1.15.2.2 fredette 83 1.15.2.2 fredette /* 84 1.15.2.2 fredette * Prepare for translation of kernel virtual addresses into offsets 85 1.15.2.2 fredette * into crash dump files. This is where we do the dispatch work. 86 1.15.2.2 fredette */ 87 1.15.2.2 fredette int 88 1.15.2.2 fredette _kvm_initvtop(kd) 89 1.15.2.2 fredette kvm_t *kd; 90 1.15.2.2 fredette { 91 1.15.2.2 fredette cpu_kcore_hdr_t *h; 92 1.15.2.2 fredette struct name_ops *nop; 93 1.15.2.2 fredette struct vmstate *vm; 94 1.15.2.2 fredette 95 1.15.2.2 fredette vm = (struct vmstate *)_kvm_malloc(kd, sizeof (*vm)); 96 1.15.2.2 fredette if (vm == 0) 97 1.15.2.2 fredette return (-1); 98 1.15.2.2 fredette 99 1.15.2.2 fredette kd->vmst = vm; 100 1.15.2.2 fredette 101 1.15.2.2 fredette /* 102 1.15.2.2 fredette * Use the machine name in the kcore header to determine 103 1.15.2.2 fredette * our ops vector. When we reach an ops vector with 104 1.15.2.2 fredette * no name, we've found a default. 105 1.15.2.2 fredette */ 106 1.15.2.2 fredette h = kd->cpu_data; 107 1.15.2.2 fredette h->name[sizeof(h->name) - 1] = '\0'; /* sanity */ 108 1.15.2.2 fredette for (nop = optbl; nop->name != NULL; nop++) 109 1.15.2.2 fredette if (strcmp(nop->name, h->name) == 0) 110 1.15.2.2 fredette break; 111 1.15.2.2 fredette 112 1.15.2.2 fredette vm->ops = nop->ops; 113 1.15.2.2 fredette 114 1.15.2.2 fredette /* 115 1.15.2.2 fredette * Compute pgshift and pgofset. 116 1.15.2.2 fredette */ 117 1.15.2.2 fredette for (vm->pgshift = 0; (1 << vm->pgshift) < h->page_size; vm->pgshift++) 118 1.15.2.2 fredette /* nothing */ ; 119 1.15.2.2 fredette if ((1 << vm->pgshift) != h->page_size) 120 1.15.2.2 fredette goto bad; 121 1.15.2.2 fredette vm->pgofset = h->page_size - 1; 122 1.15.2.2 fredette 123 1.15.2.2 fredette if ((vm->ops->initvtop)(kd) < 0) 124 1.15.2.2 fredette goto bad; 125 1.15.2.2 fredette 126 1.15.2.2 fredette return (0); 127 1.15.2.2 fredette 128 1.15.2.2 fredette bad: 129 1.15.2.2 fredette kd->vmst = NULL; 130 1.15.2.2 fredette free(vm); 131 1.15.2.2 fredette return (-1); 132 1.15.2.2 fredette } 133 1.15.2.2 fredette 134 1.15.2.2 fredette void 135 1.15.2.2 fredette _kvm_freevtop(kd) 136 1.15.2.2 fredette kvm_t *kd; 137 1.15.2.2 fredette { 138 1.15.2.2 fredette (kd->vmst->ops->freevtop)(kd); 139 1.15.2.2 fredette free(kd->vmst); 140 1.15.2.2 fredette } 141 1.15.2.2 fredette 142 1.15.2.2 fredette int 143 1.15.2.2 fredette _kvm_kvatop(kd, va, pap) 144 1.15.2.2 fredette kvm_t *kd; 145 1.15.2.2 fredette u_long va; 146 1.15.2.2 fredette u_long *pap; 147 1.15.2.2 fredette { 148 1.15.2.2 fredette return ((kd->vmst->ops->kvatop)(kd, va, pap)); 149 1.15.2.2 fredette } 150 1.15.2.2 fredette 151 1.15.2.2 fredette off_t 152 1.15.2.2 fredette _kvm_pa2off(kd, pa) 153 1.15.2.2 fredette kvm_t *kd; 154 1.15.2.2 fredette u_long pa; 155 1.15.2.2 fredette { 156 1.15.2.2 fredette return ((kd->vmst->ops->pa2off)(kd, pa)); 157 1.15.2.2 fredette } 158 1.15.2.2 fredette 159 1.15.2.2 fredette /* 160 1.15.2.2 fredette * Machine-dependent initialization for ALL open kvm descriptors, 161 1.15.2.2 fredette * not just those for a kernel crash dump. Some architectures 162 1.15.2.2 fredette * have to deal with these NOT being constants! (i.e. m68k) 163 1.15.2.2 fredette */ 164 1.15.2.2 fredette int 165 1.15.2.2 fredette _kvm_mdopen(kd) 166 1.15.2.2 fredette kvm_t *kd; 167 1.15.2.2 fredette { 168 1.15.2.2 fredette u_long max_uva; 169 1.15.2.2 fredette extern struct ps_strings *__ps_strings; 170 1.15.2.2 fredette 171 1.15.2.2 fredette #if 0 /* XXX - These vary across m68k machines... */ 172 1.15.2.2 fredette kd->usrstack = USRSTACK; 173 1.15.2.2 fredette kd->min_uva = VM_MIN_ADDRESS; 174 1.15.2.2 fredette kd->max_uva = VM_MAXUSER_ADDRESS; 175 1.15.2.2 fredette #endif 176 1.15.2.2 fredette /* This is somewhat hack-ish, but it works. */ 177 1.15.2.2 fredette max_uva = (u_long) (__ps_strings + 1); 178 1.15.2.2 fredette kd->usrstack = max_uva; 179 1.15.2.2 fredette kd->max_uva = max_uva; 180 1.15.2.2 fredette kd->min_uva = 0; 181 1.15.2.2 fredette 182 1.15.2.2 fredette return (0); 183 1.15.2.2 fredette } 184
Indexes created Sat Sep 27 22:09:54 GMT 2025