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1/* Test for dependency tracking added by relocations.
2 Copyright (C) 2000-2019 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 <http://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
26static void *
27load (const char *name)
28{
29 void *d = dlopen (name, RTLD_LAZY | RTLD_GLOBAL);
30 if (d == NULL)
31 error (EXIT_FAILURE, errno, "cannot load `%s'", name);
32 return d;
33}
34
35
36#define TEST_FUNCTION do_test ()
37extern int do_test (void);
38
39int
40do_test (void)
41{
42 void *d1;
43 void *d2;
44 int (*f) (void);
45
46 d1 = load ("glreflib1.so");
47 d2 = load ("glreflib2.so");
48
49 f = dlsym (d2, "ref2");
50 if (f == NULL)
51 error (EXIT_FAILURE, errno, "cannot get pointer to `%s'", "ref2");
52
53 if (f () != 42)
54 error (EXIT_FAILURE, 0, "wrong result from `%s'", "ref2");
55
56 puts ("Correct result in first call");
57 fflush (stdout);
58
59 /* Now unload the first file. */
60 dlclose (d1);
61
62 puts ("About to call the second time");
63 fflush (stdout);
64
65 /* Try calling the function again. */
66 if (f () != 42)
67 error (EXIT_FAILURE, 0, "wrong result from `%s' (second call)", "ref2");
68
69 puts ("Second call succeeded!");
70 fflush (stdout);
71
72 dlclose (d2);
73
74 puts ("glreflib2 also closed");
75 fflush (stdout);
76
77 return 0;
78}
79
80#include "../test-skeleton.c"
81

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