sysdeps/pthread/tst-tls4moda.c

   1 /* Copyright (C) 2003-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <stddef.h>
  19 #include <stdlib.h>
  20
  21 static __thread unsigned char foo [32]
  22   __attribute__ ((tls_model ("initial-exec"), aligned (sizeof (void *))));
  23
  24 void
  25 test1 (void)
  26 {
  27   size_t s;
  28
  29   for (s = 0; s < sizeof (foo); ++s)
  30     {
  31       if (foo [s])
  32         abort ();
  33       foo [s] = s;
  34     }
  35 }
  36
  37 void
  38 test2 (void)
  39 {
  40   size_t s;
  41
  42   for (s = 0; s < sizeof (foo); ++s)
  43     {
  44       if (foo [s] != s)
  45         abort ();
  46       foo [s] = sizeof (foo) - s;
  47     }
  48 }