hurd: Fix build

[thirdparty/glibc.git] / malloc / set-freeres.c

diff --git a/malloc/set-freeres.c b/malloc/set-freeres.c
index e73da87bf7929efa5e406104107fa22e20a653c2..c9387888e1d5ad5d324d8a63028b6a6a313b83dd 100644 (file)
--- a/malloc/set-freeres.c
+++ b/malloc/set-freeres.c
@@ -1,33 +1,64 @@
-/* Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2019 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 Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
-   Library General Public License for more details.
+   Lesser 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.  */
+   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));
 
-void
+symbol_set_define (__libc_freeres_ptrs);
+
+extern __attribute__ ((weak)) void __libdl_freeres (void);
+
+extern __attribute__ ((weak)) void __libpthread_freeres (void);
+
+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 int already_called;
+  static long int already_called;
+
+  if (!atomic_compare_and_exchange_bool_acq (&already_called, 1, 0))
+    {
+      void *const *p;
+
+      _IO_cleanup ();
+
+      /* We run the resource freeing after IO cleanup.  */
+      RUN_HOOK (__libc_subfreeres, ());
+
+      /* Call the libdl list of cleanup functions
+        (weak-ref-and-check).  */
+      if (&__libdl_freeres != NULL)
+       __libdl_freeres ();
+
+      /* Call the libpthread list of cleanup functions
+        (weak-ref-and-check).  */
+      if (&__libpthread_freeres != NULL)
+       __libpthread_freeres ();
 
-  if (!already_called)
-    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)