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-rw-r--r--REORG.TODO/malloc/set-freeres.c49
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)