1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * 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 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28#ifndef __DLFCN_H__
29#define __DLFCN_H__
30
31#include <sys/cdefs.h>
32
33__BEGIN_DECLS
34
35typedef struct {
36    const char *dli_fname;  /* Pathname of shared object that
37                               contains address */
38    void       *dli_fbase;  /* Address at which shared object
39                               is loaded */
40    const char *dli_sname;  /* Name of nearest symbol with address
41                               lower than addr */
42    void       *dli_saddr;  /* Exact address of symbol named
43                               in dli_sname */
44} Dl_info;
45
46extern void* dlopen(const char*  filename, int flag);
47extern int dlclose(void*  handle);
48extern const char* dlerror(void);
49extern void* dlsym(void* handle, const char* symbol) __nonnull((2));
50extern void* dlvsym(void* handle, const char* symbol, const char* version) __nonnull((2, 3));
51extern int dladdr(const void* addr, Dl_info *info);
52
53enum {
54#if defined(__LP64__)
55  RTLD_NOW  = 2,
56#else
57  RTLD_NOW  = 0,
58#endif
59  RTLD_LAZY = 1,
60
61  RTLD_LOCAL  = 0,
62#if defined(__LP64__)
63  RTLD_GLOBAL = 0x00100,
64#else
65  RTLD_GLOBAL = 2,
66#endif
67  RTLD_NOLOAD = 4,
68  RTLD_NODELETE = 0x01000,
69};
70
71#if defined (__LP64__)
72#define RTLD_DEFAULT  ((void*) 0)
73#define RTLD_NEXT     ((void*) -1L)
74#else
75#define RTLD_DEFAULT  ((void*) 0xffffffff)
76#define RTLD_NEXT     ((void*) 0xfffffffe)
77#endif
78
79__END_DECLS
80
81#endif /* __DLFCN_H */
82
83
84