1  /* Check LD_AUDIT with static TLS.
       2     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       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     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <ctype.h>
      20  #include <support/xthread.h>
      21  #include <support/check.h>
      22  
      23  static volatile __thread int out __attribute__ ((tls_model ("initial-exec")));
      24  
      25  static void *
      26  tf (void *arg)
      27  {
      28    TEST_COMPARE (out, 0);
      29    out = isspace (' ');
      30    return NULL;
      31  }
      32  
      33  int main (int argc, char *argv[])
      34  {
      35    TEST_COMPARE (out, 0);
      36    out = isspace (' ');
      37  
      38    pthread_t t = xpthread_create (NULL, tf, NULL);
      39    xpthread_join (t);
      40  
      41    return 0;
      42  }