/* Copyright (C) 2003-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.

   The GNU C Library is free software; you can redistribute it and/or

   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

   Lesser General Public License for more details.

   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 <pthread.h>

#include <stdio.h>

#include <stdlib.h>

struct test_s

{

  int a;

  int b;

};

#define INIT_A 1

#define INIT_B 42

/* Deliberately not static.  */

__thread struct test_s s __attribute__ ((tls_model ("initial-exec"))) =

{

  .a = INIT_A,

  .b = INIT_B

};

static void *

tf (void *arg)

{

  if (s.a != INIT_A || s.b != INIT_B)

    {

      puts ("initial value of s in child thread wrong");

      exit (1);

    }

  ++s.a;

  return NULL;

}

int

do_test (void)

{

  if (s.a != INIT_A || s.b != INIT_B)

    {

      puts ("initial value of s in main thread wrong");

      exit (1);

    }

  pthread_attr_t a;

  if (pthread_attr_init (&a) != 0)

    {

      puts ("attr_init failed");

      exit (1);

    }

  if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0)

    {

      puts ("attr_setstacksize failed");

      return 1;

    }

#define N 10

  int i;

  for (i = 0; i < N; ++i)

    {

#define M 10

      pthread_t th[M];

      int j;

      for (j = 0; j < M; ++j, ++s.a)

	if (pthread_create (&th[j], &a, tf, NULL) != 0)

	  {

	    puts ("pthread_create failed");

	    exit (1);

	  }

      for (j = 0; j < M; ++j)

	if (pthread_join (th[j], NULL) != 0)

	  {

	    puts ("pthread_join failed");

	    exit (1);

	  }

    }

  if (pthread_attr_destroy (&a) != 0)

    {

      puts ("attr_destroy failed");

      exit (1);

    }

  return 0;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"