linuxthreads/libc_pthread_init.c

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <locale.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <tls.h>
  24 #include "internals.h"
  25 #include <sysdep-cancel.h>
  26
  27 int *
  28 __libc_pthread_init (functions)
  29      const struct pthread_functions *functions;
  30 {
  31 #ifdef SHARED
  32   /* We copy the content of the variable pointed to by the FUNCTIONS
  33      parameter to one in libc.so since this means access to the array
  34      can be done with one memory access instead of two.  */
  35   memcpy (&__libc_pthread_functions, functions,
  36           sizeof (__libc_pthread_functions));
  37 #endif
  38
  39 #if !(USE_TLS && HAVE___THREAD)
  40   /* Initialize thread-locale current locale to point to the global one.
  41      With __thread support, the variable's initializer takes care of this.  */
  42   __uselocale (LC_GLOBAL_LOCALE);
  43 #endif
  44
  45   return &__libc_multiple_threads;
  46 }