test/nptl/tst-tls4moda.c

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
   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 <stdio.h>
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22 #include <tls.h>
  23
  24 #if HAVE___THREAD && defined HAVE_TLS_MODEL_ATTRIBUTE
  25
  26 static __thread unsigned char foo [32]
  27   __attribute__ ((tls_model ("initial-exec"), aligned (sizeof (void *))));
  28
  29 void
  30 test1 (void)
  31 {
  32   size_t s;
  33
  34   for (s = 0; s < sizeof (foo); ++s)
  35     {
  36       if (foo [s])
  37         abort ();
  38       foo [s] = s;
  39     }
  40 }
  41
  42 void
  43 test2 (void)
  44 {
  45   size_t s;
  46
  47   for (s = 0; s < sizeof (foo); ++s)
  48     {
  49       if (foo [s] != s)
  50         abort ();
  51       foo [s] = sizeof (foo) - s;
  52     }
  53 }
  54
  55 #endif