1/* Test struct r_debug_extended via DT_DEBUG.
2 Copyright (C) 2021-2022 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 <stdio.h>
20#include <link.h>
21#include <stdlib.h>
22#include <string.h>
23#include <gnu/lib-names.h>
24#include <support/xdlfcn.h>
25#include <support/check.h>
26#include <support/test-driver.h>
27
28#define E(x) x
29#define EW(x) ElfW(x)
30#include <dl-r_debug.h>
31
32static int
33do_test (void)
34{
35 ElfW(Dyn) *d;
36 struct r_debug_extended *debug = NULL;
37
38 for (d = _DYNAMIC; d->d_tag != DT_NULL; ++d)
39 {
40 debug = (struct r_debug_extended *) r_debug_address (d);
41 if (debug != NULL)
42 break;
43 }
44
45 TEST_VERIFY_EXIT (debug != NULL);
46 TEST_COMPARE (debug->base.r_version, 1);
47 TEST_VERIFY_EXIT (debug->r_next == NULL);
48
49 void *h = xdlmopen (LM_ID_NEWLM, filename: "$ORIGIN/tst-dlmopen1mod.so",
50 RTLD_LAZY);
51
52 TEST_COMPARE (debug->base.r_version, 2);
53 TEST_VERIFY_EXIT (debug->r_next != NULL);
54 TEST_VERIFY_EXIT (debug->r_next->r_next == NULL);
55 TEST_VERIFY_EXIT (debug->r_next->base.r_map != NULL);
56 TEST_VERIFY_EXIT (debug->r_next->base.r_map->l_name != NULL);
57 const char *name = basename (filename: debug->r_next->base.r_map->l_name);
58 TEST_COMPARE_STRING (name, "tst-dlmopen1mod.so");
59
60 xdlclose (handle: h);
61
62 return 0;
63}
64
65#include <support/test-driver.c>
66

source code of glibc/elf/tst-dlmopen4.c