e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #ifdef SDL_LOADSO_DLOPEN |
25 | |
26 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
27 | /* System dependent library loading routines */ |
28 | |
29 | #include <stdio.h> |
30 | #include <dlfcn.h> |
31 | |
32 | #include "SDL_loadso.h" |
33 | |
34 | void *SDL_LoadObject(const char *sofile) |
35 | { |
36 | void *handle = dlopen(sofile, RTLD_NOW); |
37 | const char *loaderror = (char *)dlerror(); |
38 | if ( handle == NULL ) { |
39 | SDL_SetError("Failed loading %s: %s", sofile, loaderror); |
40 | } |
41 | return(handle); |
42 | } |
43 | |
44 | void *SDL_LoadFunction(void *handle, const char *name) |
45 | { |
46 | void *symbol = dlsym(handle, name); |
47 | if ( symbol == NULL ) { |
48 | /* append an underscore for platforms that need that. */ |
49 | size_t len = 1+SDL_strlen(name)+1; |
50 | char *_name = SDL_stack_alloc(char, len); |
51 | _name[0] = '_'; |
52 | SDL_strlcpy(&_name[1], name, len); |
53 | symbol = dlsym(handle, _name); |
54 | SDL_stack_free(_name); |
55 | if ( symbol == NULL ) { |
56 | SDL_SetError("Failed loading %s: %s", name, (const char *)dlerror()); |
57 | } |
58 | } |
59 | return(symbol); |
60 | } |
61 | |
62 | void SDL_UnloadObject(void *handle) |
63 | { |
64 | if ( handle != NULL ) { |
65 | dlclose(handle); |
66 | } |
67 | } |
68 | |
69 | #endif /* SDL_LOADSO_DLOPEN */ |