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