diff options
Diffstat (limited to 'REORG.TODO/malloc/set-freeres.c')
-rw-r--r-- | REORG.TODO/malloc/set-freeres.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/REORG.TODO/malloc/set-freeres.c b/REORG.TODO/malloc/set-freeres.c new file mode 100644 index 0000000000..c9cdd819e7 --- /dev/null +++ b/REORG.TODO/malloc/set-freeres.c @@ -0,0 +1,49 @@ +/* Copyright (C) 1997-2017 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) |