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b632bdd3 SP |
1 | /* Verify that an already opened DSO opened agained with RTLD_NODELETE actually |
2 | sets the NODELETE flag. | |
3 | ||
04277e02 | 4 | Copyright (C) 2015-2019 Free Software Foundation, Inc. |
b632bdd3 SP |
5 | This file is part of the GNU C Library. |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
18 | License along with the GNU C Library; if not, see | |
5a82c748 | 19 | <https://www.gnu.org/licenses/>. */ |
b632bdd3 SP |
20 | |
21 | #include <dlfcn.h> | |
22 | #include <stdio.h> | |
23 | ||
24 | int | |
25 | do_test (void) | |
26 | { | |
27 | void *h1 = dlopen ("$ORIGIN/tst-nodelete-opened-lib.so", RTLD_LAZY); | |
28 | if (h1 == NULL) | |
29 | { | |
30 | printf ("h1: failed to open DSO: %s\n", dlerror ()); | |
31 | return 1; | |
32 | } | |
33 | ||
34 | void *h2 = dlopen ("$ORIGIN/tst-nodelete-opened-lib.so", | |
35 | RTLD_LAZY | RTLD_NODELETE); | |
36 | if (h2 == NULL) | |
37 | { | |
38 | printf ("h2: failed to open DSO: %s\n", dlerror ()); | |
39 | return 1; | |
40 | } | |
41 | ||
42 | int *foo = dlsym (h2, "foo_var"); | |
43 | if (foo == NULL) | |
44 | { | |
45 | printf ("failed to load symbol foo_var: %s\n", dlerror ()); | |
46 | return 1; | |
47 | } | |
48 | ||
49 | if (dlclose (h1) != 0) | |
50 | { | |
51 | printf ("h1: dlclose failed: %s\n", dlerror ()); | |
52 | return 1; | |
53 | } | |
54 | ||
55 | if (dlclose (h2) != 0) | |
56 | { | |
57 | printf ("h2: dlclose failed: %s\n", dlerror ()); | |
58 | return 1; | |
59 | } | |
60 | ||
e591758b SP |
61 | /* This FOO dereference will crash with a segfault if the DSO was |
62 | unloaded. */ | |
b632bdd3 SP |
63 | printf ("foo == %d\n", *foo); |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
36fe25fd | 68 | #include <support/test-driver.c> |