1 files changed, 44 insertions, 0 deletions
diff --git a/stdio-common/fcloseall.c b/stdio-common/fcloseall.c
new file mode 100644
index 0000000000..d056b902ab
--- /dev/null
+++ b/stdio-common/fcloseall.c
@@ -0,0 +1,44 @@
+/* Close all streams but make sure this isn't done more than once.
+   This function is called in abort().
+   Copyright (C) 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <libc-lock.h>
+#include <stdio.h>
+
+static int already_called;
+
+__libc_lock_define_initialized (static, lock);
+
+void
+__close_all_streams (void)
+{
+  /* We must be prepared for multi-threading on multiple calls.  */
+  if (! __libc_lock_trylock (lock) && already_called)
+    {
+      /* Signal that we already did this.  */
+      already_called = 1;
+
+      /* Do the real work.  */
+      fclose (NULL);
+
+      /* We don't release the lock so that the `trylock' immediately
+	 fails.  */
+    }
+}