1/* Test for BZ#16272, dlopen'ing an auxiliary filter object.
2 Ensure that symbols from the resolve correctly.
3
4 Copyright (C) 2020-2022 Free Software Foundation, Inc.
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
19 <https://www.gnu.org/licenses/>. */
20
21#include <stdio.h>
22#include <support/check.h>
23#include <support/xdlfcn.h>
24
25static int do_test (void)
26{
27 void *lib = xdlopen (filename: "tst-filterobj-aux.so", RTLD_LAZY);
28 char *(*fn)(void) = xdlsym (handle: lib, symbol: "get_text");
29 const char* text = fn ();
30
31 printf (format: "%s\n", text);
32
33 /* Verify the text matches what we expect from the filtee */
34 TEST_COMPARE_STRING (text, "Hello from filtee (PASS)");
35
36 fn = xdlsym (handle: lib, symbol: "get_text2");
37 text = fn ();
38
39 printf (format: "%s\n", text);
40
41 /* Verify the text matches what we expect from the auxiliary object */
42 TEST_COMPARE_STRING (text, "Hello from auxiliary filter object (PASS)");
43
44 return 0;
45}
46
47#include <support/test-driver.c>
48

source code of glibc/elf/tst-auxobj-dlopen.c