1  /* libc initialization for libpthread.  Hurd pthread version.
       2     Copyright (C) 2002-2023 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 <string.h>
      20  #include <pthread-functions.h>
      21  
      22  __thread struct __pthread_cancelation_handler *__pthread_cleanup_stack;
      23  
      24  void
      25  __libc_pthread_init (const struct pthread_functions *functions)
      26  {
      27  #ifdef SHARED
      28    /* We copy the content of the variable pointed to by the FUNCTIONS
      29       parameter to one in libc.so since this means access to the array
      30       can be done with one memory access instead of two.  */
      31    memcpy (&__libc_pthread_functions, functions,
      32  	  sizeof (__libc_pthread_functions));
      33    __libc_pthread_functions_init = 1;
      34  #endif
      35  }