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comparison src/loadso/dlopen/SDL_sysloadso.c @ 1361:19418e4422cb

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New configure-based build system. Still work in progress, but much improved
author Sam Lantinga <slouken@libsdl.org>
date Thu, 16 Feb 2006 10:11:48 +0000
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children c0a74f199ecf
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1360:70a9cfb4cf1b 1361:19418e4422cb
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 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
23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24 /* System dependent library loading routines */
25
26 #include <stdio.h>
27 #include <dlfcn.h>
28
29 #include "SDL_loadso.h"
30
31 void *SDL_LoadObject(const char *sofile)
32 {
33 void *handle = dlopen(sofile, RTLD_NOW);
34 const char *loaderror = (char *)dlerror();
35 if ( handle == NULL ) {
36 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
37 }
38 return(handle);
39 }
40
41 void *SDL_LoadFunction(void *handle, const char *name)
42 {
43 void *symbol = dlsym(handle, name);
44 if ( symbol == NULL ) {
45 char *_name = SDL_stack_alloc(char, 1+SDL_strlen(name)+1);
46 _name[0] = '_';
47 SDL_strcpy(&_name[1], name);
48 symbol = dlsym(handle, name);
49 SDL_stack_free(_name);
50 if ( symbol == NULL ) {
51 SDL_SetError("Failed loading %s: %s", name, (const char *)dlerror());
52 }
53 }
54 return(symbol);
55 }
56
57 void SDL_UnloadObject(void *handle)
58 {
59 if ( handle != NULL ) {
60 dlclose(handle);
61 }
62 }
63