1  /* Verify that pthread_create does not deadlock when ctors take locks.
       2     Copyright (C) 2021-2023 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 <stdio.h>
      20  
      21  /* Require TLS setup for the module.  */
      22  __thread int tlsvar;
      23  
      24  void ctor (void);
      25  void dtor (void);
      26  
      27  static void __attribute__ ((constructor))
      28  do_init (void)
      29  {
      30    dprintf (1, "constructor started: %d.\n", tlsvar++);
      31    ctor ();
      32    dprintf (1, "constructor done: %d.\n", tlsvar++);
      33  }
      34  
      35  static void __attribute__ ((destructor))
      36  do_end (void)
      37  {
      38    dprintf (1, "destructor started: %d.\n", tlsvar++);
      39    dtor ();
      40    dprintf (1, "destructor done: %d.\n", tlsvar++);
      41  }