Blame nptl/tst-atfork2mod.c

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/* Copyright (C) 2003-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <dso_handle.h>
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extern int val;
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static void
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prepare (void)
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{
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  ++val;
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}
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static void
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parent (void)
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{
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  val *= 4;
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}
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static void
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child (void)
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{
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  val *= 8;
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}
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static void
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__attribute__ ((constructor))
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init (void)
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{
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  printf ("dsohandle = %p\n", __dso_handle);
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  if (pthread_atfork (prepare, parent, child) != 0)
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    {
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      puts ("init: atfork failed");
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      exit (1);
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    }
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}