glibc/elf/tst-nodelete-dlclose.c

/* Bug 11941: Improper assert map->l_init_called in dlclose.
   Copyright (C) 2016-2019 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 simulates an application using the primary DSO which loads the
   plugin DSO.  */
#include <stdio.h>
#include <stdlib.h>

extern void primary (void);

static int
do_test (void)
{
  printf ("INFO: Starting application.\n");
  primary ();
  printf ("INFO: Exiting application.\n");
  return 0;
}

#include <support/test-driver.c>
Bug 11941: ld.so: Improper assert map->l_init_called in dlclose There is at least one use case where during exit a library destructor might call dlclose() on a valid handle and have it fail with an assertion. We must allow this case, it is a valid handle, and dlclose() should not fail with an assert. In the future we might be able to return an error that the dlclose() could not be completed because the opened library has already been unloaded and destructors have run as part of exit processing. For more details see: https://www.sourceware.org/ml/libc-alpha/2016-12/msg00859.html 2016-12-24 02:30:22 +08:00			`/* Bug 11941: Improper assert map->l_init_called in dlclose.`
Update copyright dates with scripts/update-copyrights. * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise. 2019-01-01 08:11:28 +08:00			`Copyright (C) 2016-2019 Free Software Foundation, Inc.`
Bug 11941: ld.so: Improper assert map->l_init_called in dlclose There is at least one use case where during exit a library destructor might call dlclose() on a valid handle and have it fail with an assertion. We must allow this case, it is a valid handle, and dlclose() should not fail with an assert. In the future we might be able to return an error that the dlclose() could not be completed because the opened library has already been unloaded and destructors have run as part of exit processing. For more details see: https://www.sourceware.org/ml/libc-alpha/2016-12/msg00859.html 2016-12-24 02:30:22 +08:00			`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 simulates an application using the primary DSO which loads the`
			`plugin DSO. */`
			`#include <stdio.h>`
			`#include <stdlib.h>`

			`extern void primary (void);`

			`static int`
			`do_test (void)`
			`{`
			`printf ("INFO: Starting application.\n");`
			`primary ();`
			`printf ("INFO: Exiting application.\n");`
			`return 0;`
			`}`

			`#include <support/test-driver.c>`