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d0e357ff | 1 | /* Initialization of libc after dlmopen/dlclose/dlmopen (bug 29528). Main. |
6d7e8eda | 2 | Copyright (C) 2022-2023 Free Software Foundation, Inc. |
d0e357ff FW |
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 | ||
2c422573 | 19 | #include <stdio.h> |
d0e357ff | 20 | #include <support/check.h> |
2c422573 | 21 | #include <support/xdlfcn.h> |
d0e357ff | 22 | |
2c422573 FW |
23 | /* Run the test multiple times, to check finding a new namespace while |
24 | another namespace is already in use. This used to trigger bug 29600. */ | |
25 | static void | |
26 | recurse (int depth) | |
d0e357ff | 27 | { |
2c422573 FW |
28 | if (depth == 0) |
29 | return; | |
30 | ||
31 | printf ("info: running at depth %d\n", depth); | |
32 | void *handle = xdlmopen (LM_ID_NEWLM, "tst-dlmopen-twice-mod1.so", | |
33 | RTLD_NOW); | |
d0e357ff FW |
34 | xdlclose (handle); |
35 | handle = xdlmopen (LM_ID_NEWLM, "tst-dlmopen-twice-mod2.so", RTLD_NOW); | |
36 | int (*run_check) (void) = xdlsym (handle, "run_check"); | |
37 | TEST_COMPARE (run_check (), 0); | |
2c422573 | 38 | recurse (depth - 1); |
d0e357ff | 39 | xdlclose (handle); |
2c422573 FW |
40 | } |
41 | ||
42 | static int | |
43 | do_test (void) | |
44 | { | |
45 | /* First run the test without nesting. */ | |
46 | recurse (1); | |
47 | ||
48 | /* Then with nesting. The constant needs to be less than the | |
2eeeee76 SN |
49 | glibc.rtld.nns tunable (which is 4 by default). */ |
50 | recurse (3); | |
d0e357ff FW |
51 | return 0; |
52 | } | |
53 | ||
54 | #include <support/test-driver.c> |