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glibc  2.9
tst-tls4moda.c
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00001 /* Copyright (C) 2003 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <stdio.h>
00021 #include <stdlib.h>
00022 #include <unistd.h>
00023 #include <tls.h>
00024 
00025 #if HAVE___THREAD && defined HAVE_TLS_MODEL_ATTRIBUTE
00026 
00027 static __thread unsigned char foo [32]
00028   __attribute__ ((tls_model ("initial-exec"), aligned (sizeof (void *))));
00029 
00030 void
00031 test1 (void)
00032 {
00033   size_t s;
00034 
00035   for (s = 0; s < sizeof (foo); ++s)
00036     {
00037       if (foo [s])
00038         abort ();
00039       foo [s] = s;
00040     }
00041 }
00042 
00043 void
00044 test2 (void)
00045 {
00046   size_t s;
00047 
00048   for (s = 0; s < sizeof (foo); ++s)
00049     {
00050       if (foo [s] != s)
00051         abort ();
00052       foo [s] = sizeof (foo) - s;
00053     }
00054 }
00055 
00056 #endif