glibc/elf/tst-nodelete-dlclose-plugin.c

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/* Bug 11941: Improper assert map->l_init_called in dlclose.
Copyright (C) 2016-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* This DSO simulates a plugin with a dependency on the
primary DSO loaded by the appliation. */
#include <stdio.h>
extern void primary_reference (void);
void
plugin_func (void)
{
printf ("INFO: Calling plugin function.\n");
/* Need a reference to the DSO to ensure that a potential --as-needed
doesn't remove the DT_NEEDED entry which we rely upon to ensure
destruction ordering. */
primary_reference ();
}
__attribute__ ((destructor))
static void
plugin_dtor (void)
{
printf ("INFO: Calling plugin destructor.\n");
}