1 /* $OpenBSD: kvm_private.h,v 1.11 2006/03/31 03:59:40 deraadt Exp $ */ 2 /* $NetBSD: kvm_private.h,v 1.7 1996/05/05 04:32:15 gwr Exp $ */ 3 4 /*- 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software developed by the Computer Systems 9 * Engineering group at Lawrence Berkeley Laboratory under DARPA contract 10 * BG 91-66 and contributed to Berkeley. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)kvm_private.h 8.1 (Berkeley) 6/4/93 37 */ 38 39 struct __kvm { 40 /* 41 * a string to be prepended to error messages 42 * provided for compatibility with sun's interface 43 * if this value is null, errors are saved in errbuf[] 44 */ 45 const char *program; 46 char *errp; /* XXX this can probably go away */ 47 char errbuf[_POSIX2_LINE_MAX]; 48 DB *db; 49 int pmfd; /* physical memory file (or crashdump) */ 50 int vmfd; /* virtual memory file (-1 if crashdump) */ 51 int swfd; /* swap file (e.g., /dev/drum) */ 52 int nlfd; /* namelist file (e.g., /vmunix) */ 53 struct kinfo_proc *procbase; 54 struct kinfo_proc2 *procbase2; 55 int nbpg; /* page size */ 56 char *swapspc; /* (dynamic) storage for swapped pages */ 57 char *argspc, *argbuf; /* (dynamic) storage for argv strings */ 58 int arglen; /* length of the above */ 59 char **argv; /* (dynamic) storage for argv pointers */ 60 int argc; /* length of above (not actual # present) */ 61 62 /* 63 * Header structures for kernel dumps. Only gets filled in for 64 * dead kernels. 65 */ 66 struct kcore_hdr *kcore_hdr; 67 size_t cpu_dsize; 68 void *cpu_data; 69 off_t dump_off; /* Where the actual dump starts */ 70 71 /* 72 * Kernel virtual address translation state. This only gets filled 73 * in for dead kernels; otherwise, the running kernel (i.e. kmem) 74 * will do the translations for us. It could be big, so we 75 * only allocate it if necessary. 76 */ 77 struct vmstate *vmst; /* XXX: should become obsoleted */ 78 /* 79 * These kernel variables are used for looking up user addresses, 80 * and are cached for efficiency. 81 */ 82 struct pglist *vm_page_buckets; 83 int vm_page_hash_mask; 84 int alive; /* Dead or alive. */ 85 #define ISALIVE(kd) ((kd)->alive) 86 }; 87 88 /* 89 * Functions used internally by kvm, but across kvm modules. 90 */ 91 void _kvm_err(kvm_t *kd, const char *program, const char *fmt, ...); 92 int _kvm_dump_mkheader(kvm_t *kd_live, kvm_t *kd_dump); 93 void _kvm_freeprocs(kvm_t *kd); 94 void _kvm_freevtop(kvm_t *); 95 int _kvm_initvtop(kvm_t *); 96 int _kvm_kvatop(kvm_t *, u_long, paddr_t *); 97 void *_kvm_malloc(kvm_t *kd, size_t); 98 off_t _kvm_pa2off(kvm_t *, paddr_t); 99 void *_kvm_realloc(kvm_t *kd, void *, size_t); 100 void _kvm_syserr(kvm_t *kd, const char *program, const char *fmt, ...); 101 ssize_t _kvm_pread(kvm_t *, int, void *, size_t, off_t); 102 ssize_t _kvm_pwrite(kvm_t *, int, const void *, size_t, off_t); 103