xref: /freebsd/lib/libkvm/kvm.h (revision 2e36db147e0edeb1b213f283f9b41a8d1a902a88)
1 /*-
2  * Copyright (c) 1989, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	@(#)kvm.h	8.1 (Berkeley) 6/2/93
30  * $FreeBSD$
31  */
32 
33 #ifndef _KVM_H_
34 #define	_KVM_H_
35 
36 #include <sys/cdefs.h>
37 #include <sys/types.h>
38 #include <nlist.h>
39 
40 /*
41  * Including vm/vm.h causes namespace pollution issues.  For the
42  * most part, only things using kvm_walk_pages() need to #include it.
43  */
44 #ifndef VM_H
45 typedef u_char vm_prot_t;
46 #endif
47 
48 /* Default version symbol. */
49 #define	VRS_SYM		"_version"
50 #define	VRS_KEY		"VERSION"
51 
52 #ifndef _SIZE_T_DECLARED
53 typedef	__size_t	size_t;
54 #define	_SIZE_T_DECLARED
55 #endif
56 
57 #ifndef _SSIZE_T_DECLARED
58 typedef	__ssize_t	ssize_t;
59 #define	_SSIZE_T_DECLARED
60 #endif
61 
62 typedef	uint64_t kvaddr_t;		/* An address in a target image. */
63 
64 struct kvm_nlist {
65 	const char *n_name;
66 	unsigned char n_type;
67 	kvaddr_t n_value;
68 };
69 
70 typedef struct __kvm kvm_t;
71 
72 struct kinfo_proc;
73 struct proc;
74 
75 struct kvm_swap {
76 	char	ksw_devname[32];
77 	u_int	ksw_used;
78 	u_int	ksw_total;
79 	int	ksw_flags;
80 	u_int	ksw_reserved1;
81 	u_int	ksw_reserved2;
82 };
83 
84 struct kvm_page {
85 	unsigned int version;
86 	u_long paddr;
87 	u_long kmap_vaddr;
88 	u_long dmap_vaddr;
89 	vm_prot_t prot;
90 	u_long offset;
91 	size_t len;
92 	/* end of version 1 */
93 };
94 
95 #define SWIF_DEV_PREFIX	0x0002
96 #define	LIBKVM_WALK_PAGES_VERSION	1
97 
98 __BEGIN_DECLS
99 int	  kvm_close(kvm_t *);
100 int	  kvm_dpcpu_setcpu(kvm_t *, unsigned int);
101 char	**kvm_getargv(kvm_t *, const struct kinfo_proc *, int);
102 int	  kvm_getcptime(kvm_t *, long *);
103 char	**kvm_getenvv(kvm_t *, const struct kinfo_proc *, int);
104 char	 *kvm_geterr(kvm_t *);
105 int	  kvm_getloadavg(kvm_t *, double [], int);
106 int	  kvm_getmaxcpu(kvm_t *);
107 int	  kvm_getncpus(kvm_t *);
108 void	 *kvm_getpcpu(kvm_t *, int);
109 uint64_t  kvm_counter_u64_fetch(kvm_t *, u_long);
110 struct kinfo_proc *
111 	  kvm_getprocs(kvm_t *, int, int, int *);
112 int	  kvm_getswapinfo(kvm_t *, struct kvm_swap *, int, int);
113 int	  kvm_native(kvm_t *);
114 int	  kvm_nlist(kvm_t *, struct nlist *);
115 int	  kvm_nlist2(kvm_t *, struct kvm_nlist *);
116 kvm_t	 *kvm_open
117 	    (const char *, const char *, const char *, int, const char *);
118 kvm_t	 *kvm_openfiles
119 	    (const char *, const char *, const char *, int, char *);
120 kvm_t	 *kvm_open2
121 	    (const char *, const char *, int, char *,
122 	    int (*)(const char *, kvaddr_t *));
123 ssize_t	  kvm_read(kvm_t *, unsigned long, void *, size_t);
124 ssize_t	  kvm_read_zpcpu(kvm_t *, unsigned long, void *, size_t, int);
125 ssize_t	  kvm_read2(kvm_t *, kvaddr_t, void *, size_t);
126 ssize_t	  kvm_write(kvm_t *, unsigned long, const void *, size_t);
127 
128 typedef int kvm_walk_pages_cb_t(struct kvm_page *, void *);
129 int kvm_walk_pages(kvm_t *, kvm_walk_pages_cb_t *, void *);
130 __END_DECLS
131 
132 #endif /* !_KVM_H_ */
133