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 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
20 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 * Wrapper functions for dlopen(), dlsym(), dlclose().
27 * Note that the #ifdef tests for various environments should be expanded.
34 #if defined(_GNU_SOURCE) && !defined(__MINGW32__)
43 * Wrapper for dlopen().
44 * Note that 'flags' isn't used at this time.
47 _mesa_dlopen(const char *libname
, int flags
)
49 #if defined(_GNU_SOURCE)
50 flags
= RTLD_LAZY
| RTLD_GLOBAL
; /* Overriding flags at this time */
51 return dlopen(libname
, flags
);
52 #elif defined(__MINGW32__)
53 return LoadLibraryA(libname
);
61 * Wrapper for dlsym() that does a cast to a generic function type,
62 * rather than a void *. This reduces the number of warnings that are
66 _mesa_dlsym(void *handle
, const char *fname
)
68 #if defined(__DJGPP__)
69 /* need '_' prefix on symbol names */
72 _mesa_strncpy(fname2
+ 1, fname
, 998);
74 return (GenericFunc
) dlsym(handle
, fname2
);
75 #elif defined(_GNU_SOURCE)
76 return (GenericFunc
) dlsym(handle
, fname
);
77 #elif defined(__MINGW32__)
78 return (GenericFunc
) GetProcAddress(handle
, fname
);
80 return (GenericFunc
) NULL
;
86 * Wrapper for dlclose().
89 _mesa_dlclose(void *handle
)
91 #if defined(_GNU_SOURCE)
93 #elif defined(__MINGW32__)