| 0,0 → 1,112 |
|---|
| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| /** |
| * Wrapper functions for dlopen(), dlsym(), dlclose(). |
| * Note that the #ifdef tests for various environments should be expanded. |
| */ |
| |
| |
| #include "compiler.h" |
| #include "dlopen.h" |
| |
| #if defined(_GNU_SOURCE) && !defined(__MINGW32__) && !defined(__blrts) |
| #include <dlfcn.h> |
| #endif |
| #if defined(_WIN32) |
| #include <windows.h> |
| #endif |
| |
| |
| /** |
| * Wrapper for dlopen(). |
| * Note that 'flags' isn't used at this time. |
| */ |
| void * |
| _mesa_dlopen(const char *libname, int flags) |
| { |
| #if defined(__blrts) |
| return NULL; |
| #elif defined(_GNU_SOURCE) |
| flags = RTLD_LAZY | RTLD_GLOBAL; /* Overriding flags at this time */ |
| return dlopen(libname, flags); |
| #elif defined(__MINGW32__) |
| return LoadLibraryA(libname); |
| #else |
| return NULL; |
| #endif |
| } |
| |
| |
| /** |
| * Wrapper for dlsym() that does a cast to a generic function type, |
| * rather than a void *. This reduces the number of warnings that are |
| * generated. |
| */ |
| GenericFunc |
| _mesa_dlsym(void *handle, const char *fname) |
| { |
| union { |
| void *v; |
| GenericFunc f; |
| } u; |
| #if defined(__blrts) |
| u.v = NULL; |
| #elif defined(__DJGPP__) |
| /* need '_' prefix on symbol names */ |
| char fname2[1000]; |
| fname2[0] = '_'; |
| strncpy(fname2 + 1, fname, 998); |
| fname2[999] = 0; |
| u.v = dlsym(handle, fname2); |
| #elif defined(_GNU_SOURCE) |
| u.v = dlsym(handle, fname); |
| #elif defined(__MINGW32__) |
| u.v = (void *) GetProcAddress(handle, fname); |
| #else |
| u.v = NULL; |
| #endif |
| return u.f; |
| } |
| |
| |
| /** |
| * Wrapper for dlclose(). |
| */ |
| void |
| _mesa_dlclose(void *handle) |
| { |
| #if defined(__blrts) |
| (void) handle; |
| #elif defined(_GNU_SOURCE) |
| dlclose(handle); |
| #elif defined(__MINGW32__) |
| FreeLibrary(handle); |
| #else |
| (void) handle; |
| #endif |
| } |
| |
| |
| |