sysdeps/htl/pt-atfork.c

   1 /* Register fork handlers.  Generic version.
   2    Copyright (C) 2002-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library;  if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <pt-internal.h>
  21 #include <fork.h>
  22 #include <dso_handle.h>
  23
  24 /* Hide the symbol so that no definition but the one locally in the
  25    executable or DSO is used.  */
  26 int
  27 #ifndef __pthread_atfork
  28 /* Don't mark the compatibility function as hidden.  */
  29 attribute_hidden
  30 #endif
  31 __pthread_atfork (void (*prepare) (void),
  32                 void (*parent) (void),
  33                 void (*child) (void))
  34 {
  35   return __register_atfork (prepare, parent, child, __dso_handle);
  36 }
  37 #ifndef __pthread_atfork
  38 extern int pthread_atfork (void (*prepare) (void), void (*parent) (void),
  39                            void (*child) (void)) attribute_hidden;
  40 weak_alias (__pthread_atfork, pthread_atfork)
  41 #endif