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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <tls.h>
  24
  25 #if HAVE___THREAD && defined HAVE_TLS_MODEL_ATTRIBUTE
  26
  27 static __thread unsigned char foo [32]
  28   __attribute__ ((tls_model ("initial-exec"), aligned (sizeof (void *))));
  29
  30 void
  31 test1 (void)
  32 {
  33   size_t s;
  34
  35   for (s = 0; s < sizeof (foo); ++s)
  36     {
  37       if (foo [s])
  38         abort ();
  39       foo [s] = s;
  40     }
  41 }
  42
  43 void
  44 test2 (void)
  45 {
  46   size_t s;
  47
  48   for (s = 0; s < sizeof (foo); ++s)
  49     {
  50       if (foo [s] != s)
  51         abort ();
  52       foo [s] = sizeof (foo) - s;
  53     }
  54 }
  55
  56 #endif