1848b8605Smrg/**************************************************************************
2848b8605Smrg *
3848b8605Smrg * Copyright 2009 VMware, Inc.
4848b8605Smrg * Copyright 1999-2008  Brian Paul
5848b8605Smrg * All Rights Reserved.
6848b8605Smrg *
7848b8605Smrg * Permission is hereby granted, free of charge, to any person obtaining a
8848b8605Smrg * copy of this software and associated documentation files (the
9848b8605Smrg * "Software"), to deal in the Software without restriction, including
10848b8605Smrg * without limitation the rights to use, copy, modify, merge, publish,
11848b8605Smrg * distribute, sub license, and/or sell copies of the Software, and to
12848b8605Smrg * permit persons to whom the Software is furnished to do so, subject to
13848b8605Smrg * the following conditions:
14848b8605Smrg *
15848b8605Smrg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16848b8605Smrg * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17848b8605Smrg * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18848b8605Smrg * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
19848b8605Smrg * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20848b8605Smrg * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21848b8605Smrg * USE OR OTHER DEALINGS IN THE SOFTWARE.
22848b8605Smrg *
23848b8605Smrg * The above copyright notice and this permission notice (including the
24848b8605Smrg * next paragraph) shall be included in all copies or substantial portions
25848b8605Smrg * of the Software.
26848b8605Smrg *
27848b8605Smrg **************************************************************************/
28848b8605Smrg
29848b8605Smrg
30848b8605Smrg#include "pipe/p_config.h"
31848b8605Smrg#include "pipe/p_compiler.h"
32848b8605Smrg
33848b8605Smrg#if defined(PIPE_OS_UNIX)
34848b8605Smrg#include <dlfcn.h>
35848b8605Smrg#endif
36848b8605Smrg#if defined(PIPE_OS_WINDOWS)
37848b8605Smrg#include <windows.h>
38848b8605Smrg#endif
39848b8605Smrg
40848b8605Smrg#include "u_dl.h"
41848b8605Smrg#include "u_pointer.h"
42848b8605Smrg
43848b8605Smrg
44848b8605Smrgstruct util_dl_library *
45848b8605Smrgutil_dl_open(const char *filename)
46848b8605Smrg{
47848b8605Smrg#if defined(PIPE_OS_UNIX)
48b8e80941Smrg   return (struct util_dl_library *)dlopen(filename, RTLD_LAZY | RTLD_LOCAL);
49848b8605Smrg#elif defined(PIPE_OS_WINDOWS)
50848b8605Smrg   return (struct util_dl_library *)LoadLibraryA(filename);
51848b8605Smrg#else
52848b8605Smrg   return NULL;
53848b8605Smrg#endif
54848b8605Smrg}
55848b8605Smrg
56848b8605Smrg
57848b8605Smrgutil_dl_proc
58848b8605Smrgutil_dl_get_proc_address(struct util_dl_library *library,
59848b8605Smrg                         const char *procname)
60848b8605Smrg{
61848b8605Smrg#if defined(PIPE_OS_UNIX)
62848b8605Smrg   return (util_dl_proc) pointer_to_func(dlsym((void *)library, procname));
63848b8605Smrg#elif defined(PIPE_OS_WINDOWS)
64848b8605Smrg   return (util_dl_proc)GetProcAddress((HMODULE)library, procname);
65848b8605Smrg#else
66848b8605Smrg   return (util_dl_proc)NULL;
67848b8605Smrg#endif
68848b8605Smrg}
69848b8605Smrg
70848b8605Smrg
71848b8605Smrgvoid
72848b8605Smrgutil_dl_close(struct util_dl_library *library)
73848b8605Smrg{
74848b8605Smrg#if defined(PIPE_OS_UNIX)
75848b8605Smrg   dlclose((void *)library);
76848b8605Smrg#elif defined(PIPE_OS_WINDOWS)
77848b8605Smrg   FreeLibrary((HMODULE)library);
78848b8605Smrg#else
79848b8605Smrg   (void)library;
80848b8605Smrg#endif
81848b8605Smrg}
82848b8605Smrg
83848b8605Smrg
84848b8605Smrgconst char *
85848b8605Smrgutil_dl_error(void)
86848b8605Smrg{
87848b8605Smrg#if defined(PIPE_OS_UNIX)
88848b8605Smrg   return dlerror();
89848b8605Smrg#elif defined(PIPE_OS_WINDOWS)
90848b8605Smrg   return "unknown error";
91848b8605Smrg#else
92848b8605Smrg   return "unknown error";
93848b8605Smrg#endif
94848b8605Smrg}
95