1/*-
2 * Copyright (c) 1994
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.
| 1/*-
2 * Copyright (c) 1994
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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
| 13 * 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 *
| 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 *
|
33 * $FreeBSD: head/include/dlfcn.h 195745 2009-07-17 19:45:42Z kib $
| 29 * $FreeBSD: head/include/dlfcn.h 203964 2010-02-16 19:39:50Z imp $
|
34 */
35
36#ifndef _DLFCN_H_
37#define _DLFCN_H_
38
39#include <sys/_types.h>
40
41/*
42 * Modes and flags for dlopen().
43 */
44#define RTLD_LAZY 1 /* Bind function calls lazily. */
45#define RTLD_NOW 2 /* Bind function calls immediately. */
46#define RTLD_MODEMASK 0x3
47#define RTLD_GLOBAL 0x100 /* Make symbols globally available. */
48#define RTLD_LOCAL 0 /* Opposite of RTLD_GLOBAL, and the default. */
49#define RTLD_TRACE 0x200 /* Trace loaded objects and exit. */
50#define RTLD_NODELETE 0x01000 /* Do not remove members. */
51#define RTLD_NOLOAD 0x02000 /* Do not load if not already loaded. */
52
53/*
54 * Request arguments for dlinfo().
55 */
56#define RTLD_DI_LINKMAP 2 /* Obtain link map. */
57#define RTLD_DI_SERINFO 4 /* Obtain search path info. */
58#define RTLD_DI_SERINFOSIZE 5 /* ... query for required space. */
59#define RTLD_DI_ORIGIN 6 /* Obtain object origin */
60#define RTLD_DI_MAX RTLD_DI_ORIGIN
61
62/*
63 * Special handle arguments for dlsym()/dlinfo().
64 */
65#define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */
66#define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */
67#define RTLD_SELF ((void *) -3) /* Search the caller itself. */
68
69#if __BSD_VISIBLE
70
71#ifndef _SIZE_T_DECLARED
72typedef __size_t size_t;
73#define _SIZE_T_DECLARED
74#endif
75
76/*
77 * Structure filled in by dladdr().
78 */
79typedef struct dl_info {
80 const char *dli_fname; /* Pathname of shared object. */
81 void *dli_fbase; /* Base address of shared object. */
82 const char *dli_sname; /* Name of nearest symbol. */
83 void *dli_saddr; /* Address of nearest symbol. */
84} Dl_info;
85
86/*-
87 * The actual type declared by this typedef is immaterial, provided that
88 * it is a function pointer. Its purpose is to provide a return type for
89 * dlfunc() which can be cast to a function pointer type without depending
90 * on behavior undefined by the C standard, which might trigger a compiler
91 * diagnostic. We intentionally declare a unique type signature to force
92 * a diagnostic should the application not cast the return value of dlfunc()
93 * appropriately.
94 */
95struct __dlfunc_arg {
96 int __dlfunc_dummy;
97};
98
99typedef void (*dlfunc_t)(struct __dlfunc_arg);
100
101/*
102 * Structures, returned by the RTLD_DI_SERINFO dlinfo() request.
103 */
104typedef struct dl_serpath {
105 char * dls_name; /* single search path entry */
106 unsigned int dls_flags; /* path information */
107} Dl_serpath;
108
109typedef struct dl_serinfo {
110 size_t dls_size; /* total buffer size */
111 unsigned int dls_cnt; /* number of path entries */
112 Dl_serpath dls_serpath[1]; /* there may be more than one */
113} Dl_serinfo;
114
115#endif /* __BSD_VISIBLE */
116
117__BEGIN_DECLS
118/* XSI functions first. */
119int dlclose(void *);
120const char *
121 dlerror(void);
122void *dlopen(const char *, int);
123void *dlsym(void * __restrict, const char * __restrict);
124
125#if __BSD_VISIBLE
126int dladdr(const void * __restrict, Dl_info * __restrict);
127dlfunc_t dlfunc(void * __restrict, const char * __restrict);
128int dlinfo(void * __restrict, int, void * __restrict);
129void dllockinit(void *_context,
130 void *(*_lock_create)(void *_context),
131 void (*_rlock_acquire)(void *_lock),
132 void (*_wlock_acquire)(void *_lock),
133 void (*_lock_release)(void *_lock),
134 void (*_lock_destroy)(void *_lock),
135 void (*_context_destroy)(void *_context));
136void *dlvsym(void * __restrict, const char * __restrict,
137 const char * __restrict);
138#endif /* __BSD_VISIBLE */
139__END_DECLS
140
141#endif /* !_DLFCN_H_ */
| 30 */
31
32#ifndef _DLFCN_H_
33#define _DLFCN_H_
34
35#include <sys/_types.h>
36
37/*
38 * Modes and flags for dlopen().
39 */
40#define RTLD_LAZY 1 /* Bind function calls lazily. */
41#define RTLD_NOW 2 /* Bind function calls immediately. */
42#define RTLD_MODEMASK 0x3
43#define RTLD_GLOBAL 0x100 /* Make symbols globally available. */
44#define RTLD_LOCAL 0 /* Opposite of RTLD_GLOBAL, and the default. */
45#define RTLD_TRACE 0x200 /* Trace loaded objects and exit. */
46#define RTLD_NODELETE 0x01000 /* Do not remove members. */
47#define RTLD_NOLOAD 0x02000 /* Do not load if not already loaded. */
48
49/*
50 * Request arguments for dlinfo().
51 */
52#define RTLD_DI_LINKMAP 2 /* Obtain link map. */
53#define RTLD_DI_SERINFO 4 /* Obtain search path info. */
54#define RTLD_DI_SERINFOSIZE 5 /* ... query for required space. */
55#define RTLD_DI_ORIGIN 6 /* Obtain object origin */
56#define RTLD_DI_MAX RTLD_DI_ORIGIN
57
58/*
59 * Special handle arguments for dlsym()/dlinfo().
60 */
61#define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */
62#define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */
63#define RTLD_SELF ((void *) -3) /* Search the caller itself. */
64
65#if __BSD_VISIBLE
66
67#ifndef _SIZE_T_DECLARED
68typedef __size_t size_t;
69#define _SIZE_T_DECLARED
70#endif
71
72/*
73 * Structure filled in by dladdr().
74 */
75typedef struct dl_info {
76 const char *dli_fname; /* Pathname of shared object. */
77 void *dli_fbase; /* Base address of shared object. */
78 const char *dli_sname; /* Name of nearest symbol. */
79 void *dli_saddr; /* Address of nearest symbol. */
80} Dl_info;
81
82/*-
83 * The actual type declared by this typedef is immaterial, provided that
84 * it is a function pointer. Its purpose is to provide a return type for
85 * dlfunc() which can be cast to a function pointer type without depending
86 * on behavior undefined by the C standard, which might trigger a compiler
87 * diagnostic. We intentionally declare a unique type signature to force
88 * a diagnostic should the application not cast the return value of dlfunc()
89 * appropriately.
90 */
91struct __dlfunc_arg {
92 int __dlfunc_dummy;
93};
94
95typedef void (*dlfunc_t)(struct __dlfunc_arg);
96
97/*
98 * Structures, returned by the RTLD_DI_SERINFO dlinfo() request.
99 */
100typedef struct dl_serpath {
101 char * dls_name; /* single search path entry */
102 unsigned int dls_flags; /* path information */
103} Dl_serpath;
104
105typedef struct dl_serinfo {
106 size_t dls_size; /* total buffer size */
107 unsigned int dls_cnt; /* number of path entries */
108 Dl_serpath dls_serpath[1]; /* there may be more than one */
109} Dl_serinfo;
110
111#endif /* __BSD_VISIBLE */
112
113__BEGIN_DECLS
114/* XSI functions first. */
115int dlclose(void *);
116const char *
117 dlerror(void);
118void *dlopen(const char *, int);
119void *dlsym(void * __restrict, const char * __restrict);
120
121#if __BSD_VISIBLE
122int dladdr(const void * __restrict, Dl_info * __restrict);
123dlfunc_t dlfunc(void * __restrict, const char * __restrict);
124int dlinfo(void * __restrict, int, void * __restrict);
125void dllockinit(void *_context,
126 void *(*_lock_create)(void *_context),
127 void (*_rlock_acquire)(void *_lock),
128 void (*_wlock_acquire)(void *_lock),
129 void (*_lock_release)(void *_lock),
130 void (*_lock_destroy)(void *_lock),
131 void (*_context_destroy)(void *_context));
132void *dlvsym(void * __restrict, const char * __restrict,
133 const char * __restrict);
134#endif /* __BSD_VISIBLE */
135__END_DECLS
136
137#endif /* !_DLFCN_H_ */
|