1 | /* Test for dependency tracking added by relocations. |
2 | Copyright (C) 2000-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C 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 | The GNU C 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 the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <dlfcn.h> |
20 | #include <error.h> |
21 | #include <errno.h> |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | |
25 | |
26 | static void * |
27 | load (const char *name) |
28 | { |
29 | void *d = dlopen (file: name, RTLD_LAZY | RTLD_GLOBAL); |
30 | if (d == NULL) |
31 | error (EXIT_FAILURE, errno, format: "cannot load `%s'" , name); |
32 | return d; |
33 | } |
34 | |
35 | |
36 | #define TEST_FUNCTION do_test () |
37 | extern int do_test (void); |
38 | |
39 | int |
40 | do_test (void) |
41 | { |
42 | void *d1; |
43 | void *d2; |
44 | int (*f) (void); |
45 | |
46 | d1 = load (name: "glreflib1.so" ); |
47 | d2 = load (name: "glreflib2.so" ); |
48 | |
49 | f = dlsym (handle: d2, name: "ref2" ); |
50 | if (f == NULL) |
51 | error (EXIT_FAILURE, errno, format: "cannot get pointer to `%s'" , "ref2" ); |
52 | |
53 | if (f () != 42) |
54 | error (EXIT_FAILURE, errnum: 0, format: "wrong result from `%s'" , "ref2" ); |
55 | |
56 | puts (s: "Correct result in first call" ); |
57 | fflush (stdout); |
58 | |
59 | /* Now unload the first file. */ |
60 | dlclose (handle: d1); |
61 | |
62 | puts (s: "About to call the second time" ); |
63 | fflush (stdout); |
64 | |
65 | /* Try calling the function again. */ |
66 | if (f () != 42) |
67 | error (EXIT_FAILURE, errnum: 0, format: "wrong result from `%s' (second call)" , "ref2" ); |
68 | |
69 | puts (s: "Second call succeeded!" ); |
70 | fflush (stdout); |
71 | |
72 | dlclose (handle: d2); |
73 | |
74 | puts (s: "glreflib2 also closed" ); |
75 | fflush (stdout); |
76 | |
77 | return 0; |
78 | } |
79 | |
80 | #include "../test-skeleton.c" |
81 | |