1 | #include <dlfcn.h> |
2 | #include <error.h> |
3 | #include <mcheck.h> |
4 | #include <stdio.h> |
5 | #include <stdlib.h> |
6 | |
7 | int |
8 | main (void) |
9 | { |
10 | void *h1; |
11 | int (*fp1) (int); |
12 | void *h2; |
13 | int (*fp2) (int); |
14 | int res1; |
15 | int res2; |
16 | |
17 | mtrace (); |
18 | |
19 | h1 = dlopen (file: "testobj1.so" , RTLD_LAZY); |
20 | if (h1 == NULL) |
21 | error (EXIT_FAILURE, errnum: 0, format: "while loading `%s': %s" , "testobj1.so" , |
22 | dlerror ()); |
23 | |
24 | h2 = dlopen (file: "testobj1_1.so" , RTLD_LAZY); |
25 | if (h1 == NULL) |
26 | error (EXIT_FAILURE, errnum: 0, format: "while loading `%s': %s" , "testobj1_1.so" , |
27 | dlerror ()); |
28 | |
29 | fp1 = dlsym (handle: h1, name: "obj1func1" ); |
30 | if (fp1 == NULL) |
31 | error (EXIT_FAILURE, errnum: 0, format: "getting `obj1func1' in `%s': %s" , |
32 | "testobj1.so" , dlerror ()); |
33 | |
34 | fp2 = dlsym (handle: h2, name: "obj1func1" ); |
35 | if (fp2 == NULL) |
36 | error (EXIT_FAILURE, errnum: 0, format: "getting `obj1func1' in `%s': %s" , |
37 | "testobj1_1.so" , dlerror ()); |
38 | |
39 | res1 = fp1 (10); |
40 | res2 = fp2 (10); |
41 | printf (format: "fp1(10) = %d\nfp2(10) = %d\n" , res1, res2); |
42 | |
43 | if (dlclose (handle: h1) != 0) |
44 | error (EXIT_FAILURE, errnum: 0, format: "cannot close testobj1.so: %s\n" , dlerror ()); |
45 | if (dlclose (handle: h2) != 0) |
46 | error (EXIT_FAILURE, errnum: 0, format: "cannot close testobj1_1.so: %s\n" , dlerror ()); |
47 | |
48 | return res1 != 42 || res2 != 72; |
49 | } |
50 | |
51 | |
52 | extern int foo (int a); |
53 | int |
54 | foo (int a) |
55 | { |
56 | return a + 10; |
57 | } |
58 | |