1/* Copyright (C) 2001-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <stdio.h>
19#include <stdlib.h>
20#include <dso_handle.h>
21
22extern void fluffy (void *p);
23extern void bar (void *p);
24
25int global;
26
27void
28fluffy (void *p)
29{
30 printf (format: "This is %s\n", __FUNCTION__);
31 *(int *) p = global = 1;
32}
33
34
35void
36bar (void *p)
37{
38 printf (format: "This is %s\n", __FUNCTION__);
39 __cxa_atexit (fluffy, p, __dso_handle);
40}
41

source code of glibc/dlfcn/modcxaatexit.c