libc_pthread_init.c 1.9 KB

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  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. 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. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #include <features.h>
  17. #include <locale.h>
  18. #include <stdlib.h>
  19. #include <string.h>
  20. #include "internals.h"
  21. #include "sysdeps/pthread/pthread-functions.h"
  22. libc_hidden_proto(memcpy)
  23. #if !(USE_TLS && HAVE___THREAD) && defined __UCLIBC_HAS_XLOCALE__
  24. libc_hidden_proto(uselocale)
  25. #endif
  26. int __libc_multiple_threads attribute_hidden __attribute__((nocommon));
  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. #if !(USE_TLS && HAVE___THREAD) && defined __UCLIBC_HAS_XLOCALE__
  39. /* Initialize thread-locale current locale to point to the global one.
  40. With __thread support, the variable's initializer takes care of this. */
  41. uselocale (LC_GLOBAL_LOCALE);
  42. #endif
  43. return &__libc_multiple_threads;
  44. }