sysdeps/htl/pt-atfork.c

   1 /* Register fork handlers.  Generic version.
   2    Copyright (C) 2002-2018 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <pt-internal.h>
  21 #include <fork.h>
  22
  23 /* This is defined by newer gcc version unique for each module.  */
  24 extern void *__dso_handle __attribute__ ((__weak__, __visibility__ ("hidden")));
  25
  26 int
  27 pthread_atfork (void (*prepare) (void),
  28                 void (*parent) (void),
  29                 void (*child) (void))
  30 {
  31   return __register_atfork (prepare, parent, child,
  32                             &__dso_handle == NULL ? NULL : __dso_handle);
  33 }