| /* Copyright (C) 1997-2014 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/>. */ |
| |
| #include <atomic.h> |
| #include <stdlib.h> |
| #include <set-hooks.h> |
| #include <libc-internal.h> |
| |
| #include "../libio/libioP.h" |
| |
| DEFINE_HOOK (__libc_subfreeres, (void)); |
| |
| symbol_set_define (__libc_freeres_ptrs); |
| |
| void __libc_freeres_fn_section |
| __libc_freeres (void) |
| { |
| /* This function might be called from different places. So better |
| protect for multiple executions since these are fatal. */ |
| static long int already_called; |
| |
| if (!atomic_compare_and_exchange_bool_acq (&already_called, 1, 0)) |
| { |
| void *const *p; |
| |
| _IO_cleanup (); |
| |
| RUN_HOOK (__libc_subfreeres, ()); |
| |
| for (p = symbol_set_first_element (__libc_freeres_ptrs); |
| !symbol_set_end_p (__libc_freeres_ptrs, p); ++p) |
| free (*p); |
| } |
| } |
| libc_hidden_def (__libc_freeres) |