RTEMS: cpukit/include/dlfcn.h Source File

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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)
39typedef 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
51void *dlopen(const char *, int);
52int dlclose(void *);
53void *dlsym(void * __restrict, const char * __restrict);
54#if defined(_NETBSD_SOURCE)
55int dladdr(void * __restrict, Dl_info * __restrict);
56int dlctl(void *, int, void *);
57#endif
58int dlinfo(void *, int, void *);
59const 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_) */