RTEMS  5.1
dlfcn.h
1 /* $NetBSD: dlfcn.h,v 1.21 2010/01/07 07:35:35 skrll Exp $ */
2 
3 /*-
4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Paul Kranenburg.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _DLFCN_H_
33 #define _DLFCN_H_
34 
35 //#include <sys/featuretest.h>
36 #include <sys/cdefs.h>
37 
38 #if defined(_NETBSD_SOURCE)
39 typedef struct _dl_info {
40  const char *dli_fname; /* File defining the symbol */
41  void *dli_fbase; /* Base address */
42  const char *dli_sname; /* Symbol name */
43  const void *dli_saddr; /* Symbol address */
44 } Dl_info;
45 #endif /* defined(_NETBSD_SOURCE) */
46 
47 /*
48  * User interface to the run-time linker.
49  */
50 __BEGIN_DECLS
51 void *dlopen(const char *, int);
52 int dlclose(void *);
53 void *dlsym(void * __restrict, const char * __restrict);
54 #if defined(_NETBSD_SOURCE)
55 int dladdr(void * __restrict, Dl_info * __restrict);
56 int dlctl(void *, int, void *);
57 #endif
58 int dlinfo(void *, int, void *);
59 const char *dlerror(void);
60 __END_DECLS
61 
62 /* Values for dlopen `mode'. */
63 #define RTLD_LAZY 1
64 #define RTLD_NOW 2
65 #define RTLD_GLOBAL 0x100 /* Allow global searches in object */
66 #define RTLD_LOCAL 0x200
67 #if defined(_NETBSD_SOURCE)
68 #define DL_LAZY RTLD_LAZY /* Compat */
69 #endif
70 
71 /*
72  * Special handle arguments for dlsym().
73  */
74 #define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */
75 #define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */
76 #define RTLD_SELF ((void *) -3) /* Search the caller itself. */
77 
78 /*
79  * dlctl() commands
80  */
81 #if defined(_NETBSD_SOURCE)
82 #define DL_GETERRNO 1
83 #define DL_GETSYMBOL 2
84 #if 0
85 #define DL_SETSRCHPATH x
86 #define DL_GETLIST x
87 #define DL_GETREFCNT x
88 #define DL_GETLOADADDR x
89 #endif /* 0 */
90 #endif /* defined(_NETBSD_SOURCE) */
91 
92 /*
93  * dlinfo() commands
94  *
95  * From Solaris: http://docs.sun.com/app/docs/doc/816-5168/dlinfo-3c?a=view
96  */
97 #define RTLD_DI_UNRESOLVED 10
98 #if defined(_NETBSD_SOURCE)
99 #define RTLD_DI_LINKMAP 3
100 #if 0
101 #define RTLD_DI_ARGSINFO 1
102 #define RTLD_DI_CONFIGADDR 2
103 #define RTLD_DI_LMID 4
104 #define RTLD_DI_SERINFO 5
105 #define RTLD_DI_SERINFOSIZE 6
106 #define RTLD_DI_ORIGIN 7
107 #define RTLD_DI_GETSIGNAL 8
108 #define RTLD_DI_SETSIGNAL 9
109 #endif
110 #endif /* _NETBSD_SOURCE */
111 
112 #endif /* !defined(_DLFCN_H_) */