xref: /dragonfly/lib/libkvm/kvm_private.h (revision 8af44722)
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. 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: src/lib/libkvm/kvm_private.h,v 1.5 1999/12/27 07:14:58 peter Exp $
35  */
36 
37 #ifndef _KVM_PRIVATE_H_
38 #define	_KVM_PRIVATE_H_
39 
40 #include <sys/cdefs.h>
41 #include <sys/types.h>
42 
43 struct __kvm {
44 	/*
45 	 * a string to be prepended to error messages
46 	 * provided for compatibility with sun's interface
47 	 * if this value is null, errors are saved in errbuf[]
48 	 */
49 	const char *program;
50 	char	*errp;		/* XXX this can probably go away */
51 	char	errbuf[_POSIX2_LINE_MAX];
52 	int	pmfd;		/* physical memory file (or crashdump) */
53 	int	vmfd;		/* virtual memory file (-1 if crashdump) */
54 	int	flags;		/* was: swap file (e.g., /dev/drum) */
55 	int	nlfd;		/* namelist file (e.g., /kernel) */
56 	struct kinfo_proc *procbase;
57 	struct kinfo_proc *procend;
58 	char	*argspc;	/* (dynamic) storage for argv strings */
59 	int	arglen;		/* length of the above */
60 	char	**argv;		/* (dynamic) storage for argv pointers */
61 	int	argc;		/* length of above (not actual # present) */
62 	char	*argbuf;	/* (dynamic) temporary storage */
63 	/*
64 	 * Kernel virtual address translation state.  This only gets filled
65 	 * in for dead kernels; otherwise, the running kernel (i.e. kmem)
66 	 * will do the translations for us.  It could be big, so we
67 	 * only allocate it if necessary.
68 	 */
69 	struct vmstate *vmst;
70 	int	rawdump;	/* raw dump format */
71 };
72 
73 enum {
74 	KVMF_HOST = 0x1,
75 	KVMF_VKERN = 0x2,
76 };
77 
78 static inline
79 int
80 kvm_ishost(kvm_t *kd)
81 {
82 	return kd->flags & KVMF_HOST;
83 }
84 
85 static inline
86 int
87 kvm_isvkernel(kvm_t *kd)
88 {
89 	return kd->flags & KVMF_VKERN;
90 }
91 
92 /*
93  * Functions used internally by kvm, but across kvm modules.
94  */
95 void	 _kvm_err (kvm_t *kd, const char *program, const char *fmt, ...)
96 	     __printflike(3, 4);
97 void	 _kvm_freeprocs (kvm_t *kd);
98 void	 _kvm_freevtop (kvm_t *);
99 int	 _kvm_initvtop (kvm_t *);
100 int	 _kvm_kvatop (kvm_t *, u_long, off_t *);
101 void	*_kvm_malloc (kvm_t *kd, size_t);
102 void	*_kvm_realloc (kvm_t *kd, void *, size_t);
103 void	 _kvm_syserr (kvm_t *kd, const char *program, const char *fmt, ...)
104 	     __printflike(3, 4);
105 int	 _kvm_uvatop (kvm_t *, const struct proc *, u_long, u_long *);
106 void     _kvm_minidump_freevtop(kvm_t *);
107 int      _kvm_minidump_initvtop(kvm_t *);
108 int      _kvm_minidump_kvatop(kvm_t *, u_long, off_t *);
109 
110 #endif /* !_KVM_PRIVATE_H_ */
111