1 /* This testcase is part of GDB, the GNU debugger.
2
3 Copyright 2004, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program 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
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include <stdio.h>
19 #include <stdlib.h>
20
21 #ifdef __WIN32__
22 #include <windows.h>
23 #define dlopen(name, mode) LoadLibrary (TEXT (name))
24 #ifdef _WIN32_WCE
25 # define dlsym(handle, func) GetProcAddress (handle, TEXT (func))
26 #else
27 # define dlsym(handle, func) GetProcAddress (handle, func)
28 #endif
29 #define dlclose(handle) FreeLibrary (handle)
30 #else
31 #include <dlfcn.h>
32 #endif
33
34 int k = 0;
35
main()36 int main()
37 {
38 void *handle;
39 int (*unloadshr) (int);
40 int y;
41 const char *msg;
42
43 handle = dlopen (SHLIB_NAME, RTLD_LAZY);
44
45 if (!handle)
46 {
47 fprintf (stderr, "%s\n", dlerror ());
48 exit (1);
49 }
50
51 unloadshr = (int (*) (int)) dlsym (handle, "shrfunc1");
52
53 if (!unloadshr)
54 {
55 #ifdef __WIN32__
56 fprintf (stderr, "error %d occurred\n", GetLastError ());
57 #else
58 fprintf (stderr, "%s\n", dlerror ());
59 #endif
60 exit (1);
61 }
62
63 y = (*unloadshr) (1);
64
65 dlclose (handle);
66 handle = NULL; /* y-set-1 */
67
68 /* The second library should share the same memory address. */
69
70 handle = dlopen (SHLIB_NAME2, RTLD_LAZY);
71
72 if (!handle)
73 {
74 fprintf (stderr, "%s\n", dlerror ());
75 exit (1);
76 }
77
78 unloadshr = (int (*)(int)) dlsym (handle, "shrfunc2");
79
80 if (!unloadshr)
81 {
82 #ifdef __WIN32__
83 fprintf (stderr, "error %d occurred\n", GetLastError ());
84 #else
85 fprintf (stderr, "%s\n", dlerror ());
86 #endif
87 exit (1);
88 }
89
90 y = (*unloadshr) (2);
91
92 dlclose (handle);
93 handle = NULL; /* y-set-2 */
94
95 return 0;
96 }
97