1 /* $NetBSD: kvm_private.h,v 1.14 2003/08/07 16:44:39 agc Exp $ */ 2 3 /*- 4 * Copyright (c) 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 * @(#)kvm_private.h 8.1 (Berkeley) 6/4/93 36 */ 37 38 struct __kvm { 39 /* 40 * a string to be prepended to error messages 41 * provided for compatibility with sun's interface 42 * if this value is null, errors are saved in errbuf[] 43 */ 44 const char *program; 45 char *errp; /* XXX this can probably go away */ 46 char errbuf[_POSIX2_LINE_MAX]; 47 int pmfd; /* physical memory file (or crash dump) */ 48 int vmfd; /* virtual memory file (-1 if crash dump) */ 49 int swfd; /* swap file (e.g., /dev/drum) */ 50 int nlfd; /* namelist file (e.g., /vmunix) */ 51 char alive; /* live kernel? */ 52 struct kinfo_proc *procbase; 53 struct kinfo_proc2 *procbase2; 54 struct kinfo_lwp *lwpbase; 55 u_long usrstack; /* address of end of user stack */ 56 u_long min_uva, max_uva; /* min/max user virtual address */ 57 int nbpg; /* page size */ 58 char *swapspc; /* (dynamic) storage for swapped pages */ 59 char *argspc, *argbuf; /* (dynamic) storage for argv strings */ 60 int arglen; /* length of the above */ 61 char **argv; /* (dynamic) storage for argv pointers */ 62 int argc; /* length of above (not actual # present) */ 63 64 /* 65 * Header structures for kernel dumps. Only gets filled in for 66 * dead kernels. 67 */ 68 struct kcore_hdr *kcore_hdr; 69 size_t cpu_dsize; 70 void *cpu_data; 71 off_t dump_off; /* Where the actual dump starts */ 72 73 /* 74 * Kernel virtual address translation state. This only gets filled 75 * in for dead kernels; otherwise, the running kernel (i.e. kmem) 76 * will do the translations for us. It could be big, so we 77 * only allocate it if necessary. 78 */ 79 struct vmstate *vmst; /* XXX: should become obsoleted */ 80 /* 81 * These kernel variables are used for looking up user addresses, 82 * and are cached for efficiency. 83 */ 84 struct pglist *vm_page_buckets; 85 int vm_page_hash_mask; 86 }; 87 88 /* Levels of aliveness */ 89 #define KVM_ALIVE_DEAD 0 /* dead, working from core file */ 90 #define KVM_ALIVE_FILES 1 /* alive, working from open kmem/drum */ 91 #define KVM_ALIVE_SYSCTL 2 /* alive, sysctl-type calls only */ 92 93 #define ISALIVE(kd) ((kd)->alive != KVM_ALIVE_DEAD) 94 #define ISKMEM(kd) ((kd)->alive == KVM_ALIVE_FILES) 95 #define ISSYSCTL(kd) ((kd)->alive == KVM_ALIVE_SYSCTL || ISKMEM(kd)) 96 97 /* 98 * Functions used internally by kvm, but across kvm modules. 99 */ 100 void _kvm_err __P((kvm_t *kd, const char *program, const char *fmt, ...)) 101 __attribute__((__format__(__printf__, 3, 4))); 102 int _kvm_dump_mkheader __P((kvm_t *kd_live, kvm_t *kd_dump)); 103 void _kvm_freeprocs __P((kvm_t *kd)); 104 void _kvm_freevtop __P((kvm_t *)); 105 int _kvm_mdopen __P((kvm_t *)); 106 int _kvm_initvtop __P((kvm_t *)); 107 int _kvm_kvatop __P((kvm_t *, u_long, u_long *)); 108 void *_kvm_malloc __P((kvm_t *kd, size_t)); 109 off_t _kvm_pa2off __P((kvm_t *, u_long)); 110 void *_kvm_realloc __P((kvm_t *kd, void *, size_t)); 111 void _kvm_syserr 112 __P((kvm_t *kd, const char *program, const char *fmt, ...)) 113 __attribute__((__format__(__printf__, 3, 4))); 114 115