xref: /freebsd/lib/libkvm/kvm_private.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /*-
2  * Copyright (c) 1992, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software developed by the Computer Systems
6  * Engineering group at Lawrence Berkeley Laboratory under DARPA contract
7  * BG 91-66 and contributed to Berkeley.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)kvm_private.h	8.1 (Berkeley) 6/4/93
34  * $FreeBSD$
35  */
36 
37 struct __kvm {
38 	/*
39 	 * a string to be prepended to error messages
40 	 * provided for compatibility with sun's interface
41 	 * if this value is null, errors are saved in errbuf[]
42 	 */
43 	const char *program;
44 	char	*errp;		/* XXX this can probably go away */
45 	char	errbuf[_POSIX2_LINE_MAX];
46 #define ISALIVE(kd) ((kd)->vmfd >= 0)
47 	int	pmfd;		/* physical memory file (or crashdump) */
48 	int	vmfd;		/* virtual memory file (-1 if crashdump) */
49 	int	unused;		/* was: swap file (e.g., /dev/drum) */
50 	int	nlfd;		/* namelist file (e.g., /kernel) */
51 	struct kinfo_proc *procbase;
52 	char	*argspc;	/* (dynamic) storage for argv strings */
53 	int	arglen;		/* length of the above */
54 	char	**argv;		/* (dynamic) storage for argv pointers */
55 	int	argc;		/* length of above (not actual # present) */
56 	char	*argbuf;	/* (dynamic) temporary storage */
57 	/*
58 	 * Kernel virtual address translation state.  This only gets filled
59 	 * in for dead kernels; otherwise, the running kernel (i.e. kmem)
60 	 * will do the translations for us.  It could be big, so we
61 	 * only allocate it if necessary.
62 	 */
63 	struct vmstate *vmst;
64 	int	rawdump;	/* raw dump format */
65 };
66 
67 /*
68  * Functions used internally by kvm, but across kvm modules.
69  */
70 void	 _kvm_err(kvm_t *kd, const char *program, const char *fmt, ...)
71 	    __printflike(3, 4);
72 void	 _kvm_freeprocs(kvm_t *kd);
73 void	 _kvm_freevtop(kvm_t *);
74 int	 _kvm_initvtop(kvm_t *);
75 int	 _kvm_kvatop(kvm_t *, u_long, off_t *);
76 void	*_kvm_malloc(kvm_t *kd, size_t);
77 void	*_kvm_realloc(kvm_t *kd, void *, size_t);
78 void	 _kvm_syserr (kvm_t *kd, const char *program, const char *fmt, ...)
79 	    __printflike(3, 4);
80 int	 _kvm_uvatop(kvm_t *, const struct proc *, u_long, u_long *);
81 
82 #if defined(__amd64__) || defined(__i386__)
83 void	 _kvm_minidump_freevtop(kvm_t *);
84 int	 _kvm_minidump_initvtop(kvm_t *);
85 int	 _kvm_minidump_kvatop(kvm_t *, u_long, off_t *);
86 #endif
87