1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/* Test for dependency tracking added by relocations.
Copyright (C) 2000-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <dlfcn.h>
#include <error.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
static void *
load (const char *name)
{
void *d = dlopen (name, RTLD_LAZY | RTLD_GLOBAL);
if (d == NULL)
error (EXIT_FAILURE, errno, "cannot load `%s'", name);
return d;
}
#define TEST_FUNCTION do_test ()
extern int do_test (void);
int
do_test (void)
{
void *d1;
void *d2;
int (*f) (void);
d1 = load ("glreflib1.so");
d2 = load ("glreflib2.so");
f = dlsym (d2, "ref2");
if (f == NULL)
error (EXIT_FAILURE, errno, "cannot get pointer to `%s'", "ref2");
if (f () != 42)
error (EXIT_FAILURE, 0, "wrong result from `%s'", "ref2");
puts ("Correct result in first call");
fflush (stdout);
/* Now unload the first file. */
dlclose (d1);
puts ("About to call the second time");
fflush (stdout);
/* Try calling the function again. */
if (f () != 42)
error (EXIT_FAILURE, 0, "wrong result from `%s' (second call)", "ref2");
puts ("Second call succeeded!");
fflush (stdout);
dlclose (d2);
puts ("glreflib2 also closed");
fflush (stdout);
return 0;
}
#include "../test-skeleton.c"
|
