summary refs log tree commit diff
path: root/nptl/tst-tls1.c
blob: 36681629e3b0cec82417be7c23647f895ccb56e2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
/* Copyright (C) 2003 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>


#if HAVE___THREAD
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;
}
#endif


int
do_test (void)
{
#if !HAVE___THREAD

  puts ("No __thread support in compiler, test skipped.");

  return 0;
#else

  if (s.a != INIT_A || s.b != INIT_B)
    {
      puts ("initial value of s in main thread wrong");
      exit (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], NULL, 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);
	  }
    }

  return 0;
#endif
}


#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"