amd64 - add kvtop and add back ed(4) to AMD64_GENERIC
[dragonfly.git] / include / dlfcn.h
blob860296002e829ae54221dd733603c5b0d51a5443
1 /*
2 * Copyright (c) 1994
3 * The Regents of the University of California. All rights reserved.
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
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
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.
33 * $FreeBSD: src/include/dlfcn.h,v 1.10.2.3 2003/02/20 20:42:45 kan Exp $
34 * $DragonFly: src/include/dlfcn.h,v 1.5 2004/02/26 13:58:25 joerg Exp $
37 #ifndef _DLFCN_H_
38 #define _DLFCN_H_
40 #include <sys/cdefs.h>
41 #include <machine/stdint.h> /* size_t */
44 * Modes and flags for dlopen().
46 #define RTLD_LAZY 1 /* Bind function calls lazily */
47 #define RTLD_NOW 2 /* Bind function calls immediately */
48 #define RTLD_MODEMASK 0x3
49 #define RTLD_GLOBAL 0x100 /* Make symbols globally available */
50 #define RTLD_LOCAL 0 /* Opposite of RTLD_GLOBAL, and the default */
51 #define RTLD_TRACE 0x200 /* Trace loaded objects and exit */
54 * Request arguments for dlinfo().
56 #define RTLD_DI_LINKMAP 2
57 #define RTLD_DI_SERINFO 4
58 #define RTLD_DI_SERINFOSIZE 5
59 #define RTLD_DI_ORIGIN 6
62 * Special handle arguments for dlsym()/dlinfo().
64 #define RTLD_NEXT ((void *) -1) /* Search subsequent objects */
65 #define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm */
66 #define RTLD_SELF ((void *) -3) /* Search the caller itself. */
68 #if __BSD_VISIBLE
70 * Structure filled in by dladdr().
72 typedef struct dl_info {
73 const char *dli_fname; /* Pathname of shared object */
74 void *dli_fbase; /* Base address of shared object */
75 const char *dli_sname; /* Name of nearest symbol */
76 void *dli_saddr; /* Address of nearest symbol */
77 } Dl_info;
80 * Avoid sys/types.h namespace pollution.
84 * Structures, returned by the RTLD_DI_SERINFO dlinfo() request.
86 typedef struct dl_serpath {
87 char * dls_name; /* single search path entry */
88 unsigned int dls_flags; /* path information */
89 } Dl_serpath;
91 typedef struct dl_serinfo {
92 __size_t dls_size; /* total buffer size */
93 unsigned int dls_cnt; /* number of path entries */
94 Dl_serpath dls_serpath[1]; /* there may be more than one */
95 } Dl_serinfo;
98 * The actual type declared by this typedef is immaterial, provided that
99 * it is a function pointer. Its purpose is to provide a return type for
100 * dlfunc() which can be cast to a function pointer type without depending
101 * on behavior undefined by the C standard, which might trigger a compiler
102 * diagnostic. We intentionally declare a unique type signature to force
103 * a diagnostic should the application not cast the return value of dlfunc()
104 * appropriately.
106 struct __dlfunc_arg {
107 int __dlfunc_dummy;
110 typedef void (*dlfunc_t)(struct __dlfunc_arg);
112 #endif /* __BSD_VISIBLE */
114 __BEGIN_DECLS
115 /* XSI functions first */
116 int dlclose(void *);
117 const char *dlerror(void);
118 void *dlopen(const char *, int);
119 void *dlsym(void * __restrict, const char * __restrict);
121 #if __BSD_VISIBLE
122 int dladdr(const void * __restrict, Dl_info * __restrict);
123 dlfunc_t dlfunc(void * __restrict, const char * __restrict);
124 int dlinfo(void * __restrict, int, void * __restrict);
125 void dllockinit(void *, void *(*)(void *), void (*)(void *),
126 void (*)(void *), void (*)(void *),
127 void (*)(void *), void (*)(void *));
128 #endif /* __BSD_VISIBLE */
129 __END_DECLS
131 #endif /* !_DLFCN_H_ */