locale/global-locale.c

   1 /* Locale object representing the global locale controlled by setlocale.
   2    Copyright (C) 2002, 2006 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, 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 "localeinfo.h"
  22
  23 #define DEFINE_CATEGORY(category, category_name, items, a) \
  24 extern struct locale_data _nl_C_##category; weak_extern (_nl_C_##category)
  25 #include "categories.def"
  26 #undef  DEFINE_CATEGORY
  27
  28 /* Defined in locale/C-ctype.c.  */
  29 extern const char _nl_C_LC_CTYPE_class[] attribute_hidden;
  30 extern const char _nl_C_LC_CTYPE_toupper[] attribute_hidden;
  31 extern const char _nl_C_LC_CTYPE_tolower[] attribute_hidden;
  32 weak_extern (_nl_C_LC_CTYPE_class)
  33 weak_extern (_nl_C_LC_CTYPE_toupper)
  34 weak_extern (_nl_C_LC_CTYPE_tolower)
  35
  36 /* Here we define the locale object maintained by setlocale.
  37    The references in the initializer are weak, so the parts of
  38    the structure that are never referred to will be zero.  */
  39
  40 struct __locale_struct _nl_global_locale attribute_hidden =
  41   {
  42     .__locales =
  43     {
  44 #define DEFINE_CATEGORY(category, category_name, items, a) \
  45       [category] = &_nl_C_##category,
  46 #include "categories.def"
  47 #undef  DEFINE_CATEGORY
  48     },
  49     .__names =
  50     {
  51       [LC_ALL] = _nl_C_name,
  52 #define DEFINE_CATEGORY(category, category_name, items, a) \
  53       [category] = _nl_C_name,
  54 #include "categories.def"
  55 #undef  DEFINE_CATEGORY
  56     },
  57     .__ctype_b = (const unsigned short int *) _nl_C_LC_CTYPE_class + 128,
  58     .__ctype_tolower = (const int *) _nl_C_LC_CTYPE_tolower + 128,
  59     .__ctype_toupper = (const int *) _nl_C_LC_CTYPE_toupper + 128
  60   };
  61
  62 #include <tls.h>
  63 #if HAVE___THREAD
  64 /* The tsd macros don't permit an initializer.  */
  65 __thread void *__libc_tsd_LOCALE = &_nl_global_locale;
  66 #else
  67 __libc_tsd_define (, LOCALE)
  68 /* This is a bad kludge presuming the variable name used by the macros.
  69    Using typeof makes sure to barf if we do not match the macro definition.
  70    This ifndef is a further bad kludge for Hurd, where there is an explicit
  71    initialization.  */
  72 # ifndef _HURD_THREADVAR_H
  73 __typeof (__libc_tsd_LOCALE_data) __libc_tsd_LOCALE_data = &_nl_global_locale;
  74 # endif
  75 #endif