xref: /freebsd/lib/libkvm/kvm_private.h (revision 0c43d89a0d8e976ca494d4837f4c1f3734d2c300)
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  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *	This product includes software developed by the University of
20  *	California, Berkeley and its contributors.
21  * 4. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *	@(#)kvm_private.h	8.1 (Berkeley) 6/4/93
38  */
39 
40 struct __kvm {
41 	/*
42 	 * a string to be prepended to error messages
43 	 * provided for compatibility with sun's interface
44 	 * if this value is null, errors are saved in errbuf[]
45 	 */
46 	const char *program;
47 	char	*errp;		/* XXX this can probably go away */
48 	char	errbuf[_POSIX2_LINE_MAX];
49 	DB	*db;
50 #define ISALIVE(kd) ((kd)->vmfd >= 0)
51 	int	pmfd;		/* physical memory file (or crashdump) */
52 	int	vmfd;		/* virtual memory file (-1 if crashdump) */
53 	int	swfd;		/* swap file (e.g., /dev/drum) */
54 	int	nlfd;		/* namelist file (e.g., /kernel) */
55 	struct kinfo_proc *procbase;
56 	char	*argspc;	/* (dynamic) storage for argv strings */
57 	int	arglen;		/* length of the above */
58 	char	**argv;		/* (dynamic) storage for argv pointers */
59 	int	argc;		/* length of above (not actual # present) */
60 	/*
61 	 * Kernel virtual address translation state.  This only gets filled
62 	 * in for dead kernels; otherwise, the running kernel (i.e. kmem)
63 	 * will do the translations for us.  It could be big, so we
64 	 * only allocate it if necessary.
65 	 */
66 	struct vmstate *vmst;
67 };
68 
69 /*
70  * Functions used internally by kvm, but across kvm modules.
71  */
72 void	 _kvm_err __P((kvm_t *kd, const char *program, const char *fmt, ...));
73 void	 _kvm_freeprocs __P((kvm_t *kd));
74 void	 _kvm_freevtop __P((kvm_t *));
75 int	 _kvm_initvtop __P((kvm_t *));
76 int	 _kvm_kvatop __P((kvm_t *, u_long, u_long *));
77 void	*_kvm_malloc __P((kvm_t *kd, size_t));
78 void	*_kvm_realloc __P((kvm_t *kd, void *, size_t));
79 void	 _kvm_syserr
80 	    __P((kvm_t *kd, const char *program, const char *fmt, ...));
81 int	 _kvm_uvatop __P((kvm_t *, const struct proc *, u_long, u_long *));
82