1 /* $NetBSD: dlfcn.h,v 1.24 2012/02/16 23:00:39 joerg 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 *_dlauxinfo(void) __pure; 52 53 void *dlopen(const char *, int); 54 int dlclose(void *); 55 void *dlsym(void * __restrict, const char * __restrict); 56 #if defined(_NETBSD_SOURCE) 57 int dladdr(const void * __restrict, Dl_info * __restrict); 58 int dlctl(void *, int, void *); 59 int dlinfo(void *, int, void *); 60 void *dlvsym(void * __restrict, const char * __restrict, 61 const char * __restrict); 62 #endif 63 __aconst char *dlerror(void); 64 __END_DECLS 65 66 /* Values for dlopen `mode'. */ 67 #define RTLD_LAZY 1 68 #define RTLD_NOW 2 69 #define RTLD_GLOBAL 0x100 /* Allow global searches in object */ 70 #define RTLD_LOCAL 0x200 71 #define RTLD_NODELETE 0x01000 /* Do not remove members. */ 72 #define RTLD_NOLOAD 0x02000 /* Do not load if not already loaded. */ 73 #if defined(_NETBSD_SOURCE) 74 #define DL_LAZY RTLD_LAZY /* Compat */ 75 #endif 76 77 /* 78 * Special handle arguments for dlsym(). 79 */ 80 #define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */ 81 #define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */ 82 #define RTLD_SELF ((void *) -3) /* Search the caller itself. */ 83 84 /* 85 * dlctl() commands 86 */ 87 #if defined(_NETBSD_SOURCE) 88 #define DL_GETERRNO 1 89 #define DL_GETSYMBOL 2 90 #if 0 91 #define DL_SETSRCHPATH x 92 #define DL_GETLIST x 93 #define DL_GETREFCNT x 94 #define DL_GETLOADADDR x 95 #endif /* 0 */ 96 #endif /* defined(_NETBSD_SOURCE) */ 97 98 /* 99 * dlinfo() commands 100 * 101 * From Solaris: http://docs.sun.com/app/docs/doc/816-5168/dlinfo-3c?a=view 102 */ 103 #if defined(_NETBSD_SOURCE) 104 #define RTLD_DI_LINKMAP 3 105 #if 0 106 #define RTLD_DI_ARGSINFO 1 107 #define RTLD_DI_CONFIGADDR 2 108 #define RTLD_DI_LMID 4 109 #define RTLD_DI_SERINFO 5 110 #define RTLD_DI_SERINFOSIZE 6 111 #define RTLD_DI_ORIGIN 7 112 #define RTLD_DI_GETSIGNAL 8 113 #define RTLD_DI_SETSIGNAL 9 114 #endif 115 #endif /* _NETBSD_SOURCE */ 116 117 #endif /* !defined(_DLFCN_H_) */ 118