2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
30 * Wrapper functions for dlopen(), dlsym(), dlclose().
31 * Note that the #ifdef tests for various environments should be expanded.
34 #if defined(HAVE_DLOPEN)
41 typedef void (*GenericFunc
)(void);
44 * Wrapper for dlopen().
45 * Note that 'flags' isn't used at this time.
48 _mesa_dlopen(const char *libname
, int flags
)
52 #elif defined(HAVE_DLOPEN)
53 flags
= RTLD_LAZY
| RTLD_GLOBAL
; /* Overriding flags at this time */
54 return dlopen(libname
, flags
);
55 #elif defined(__MINGW32__)
56 return LoadLibraryA(libname
);
63 * Wrapper for dlsym() that does a cast to a generic function type,
64 * rather than a void *. This reduces the number of warnings that are
67 static inline GenericFunc
68 _mesa_dlsym(void *handle
, const char *fname
)
76 #elif defined(__DJGPP__)
77 /* need '_' prefix on symbol names */
80 strncpy(fname2
+ 1, fname
, 998);
82 u
.v
= dlsym(handle
, fname2
);
83 #elif defined(HAVE_DLOPEN)
84 u
.v
= dlsym(handle
, fname
);
85 #elif defined(__MINGW32__)
86 u
.v
= (void *) GetProcAddress(handle
, fname
);
94 * Wrapper for dlclose().
97 _mesa_dlclose(void *handle
)
101 #elif defined(HAVE_DLOPEN)
103 #elif defined(__MINGW32__)