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b811d2c2 | 1 | /* Copyright (C) 2007-2020 Free Software Foundation, Inc. |
aa2d5a42 KS |
2 | |
3 | This program is free software; you can redistribute it and/or modify | |
4 | it under the terms of the GNU General Public License as published by | |
5 | the Free Software Foundation; either version 3 of the License, or | |
6 | (at your option) any later version. | |
7 | ||
8 | This program is distributed in the hope that it will be useful, | |
9 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | GNU General Public License for more details. | |
12 | ||
13 | You should have received a copy of the GNU General Public License | |
14 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
15 | ||
16 | /* This shared library will dlopen another shared object. | |
17 | This is based on gdb.base/solib-disc.c. */ | |
18 | ||
19 | #include <stdio.h> | |
20 | #include <stdlib.h> | |
21 | ||
22 | #ifdef __WIN32__ | |
23 | #include <windows.h> | |
24 | #define dlopen(name, mode) LoadLibrary (name) | |
25 | #define dlsym(handle, func) GetProcAddress (handle, func) | |
26 | #define dlclose(handle) FreeLibrary (handle) | |
27 | #define dlerror() "an error occurred" | |
28 | #else | |
29 | #include <dlfcn.h> | |
30 | #endif | |
31 | ||
32 | const char *the_shlib = SHLIB_NAME; | |
33 | ||
34 | int | |
35 | shlib_function (void) | |
36 | { | |
37 | void *handle; | |
38 | int (*func) (void); | |
39 | int result; | |
40 | ||
41 | handle = dlopen (the_shlib, RTLD_LAZY); | |
42 | if (!handle) | |
43 | { | |
44 | fprintf (stderr, "%s\n", dlerror ()); | |
45 | exit (1); | |
46 | } | |
47 | ||
48 | func = (int (*)(void)) dlsym (handle, "crashfunc"); | |
49 | if (func == NULL) | |
50 | { | |
51 | fprintf (stderr, "%s\n", dlerror ()); | |
52 | exit (1); | |
53 | } | |
54 | ||
55 | result = func (); | |
56 | dlclose (handle); | |
57 | return result; | |
58 | } |