# globals.cc

    00001 // Copyright (C) 2001, 2002 Free Software Foundation, Inc.
    00002 //
    00003 // This file is part of the GNU ISO C++ Library.  This library is free
    00004 // software; you can redistribute it and/or modify it under the
    00005 // terms of the GNU General Public License as published by the
    00006 // Free Software Foundation; either version 2, or (at your option)
    00007 // any later version.
    00008
    00009 // This library is distributed in the hope that it will be useful,
    00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00012 // GNU General Public License for more details.
    00013
    00014 // You should have received a copy of the GNU General Public License along
    00015 // with this library; see the file COPYING.  If not, write to the Free
    00016 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
    00017 // USA.
    00018
    00019 // As a special exception, you may use this file as part of a free software
    00020 // library without restriction.  Specifically, if other files instantiate
    00021 // templates or use macros or inline functions from this file, or you compile
    00022 // this file and link it with other files to produce an executable, this
    00023 // file does not by itself cause the resulting executable to be covered by
    00024 // the GNU General Public License.  This exception does not however
    00025 // invalidate any other reasons why the executable file might be covered by
    00026 // the GNU General Public License.
    00027
    00028 #include "bits/c++config.h"
    00029 #include "bits/gthr.h"
    00030 #include <fstream>
    00031 #include <istream>
    00032 #include <ostream>
    00033 #include <locale>
    00034 #include <ext/stdio_filebuf.h>
    00035
    00036 // On AIX, and perhaps other systems, library initialization order is
    00037 // not guaranteed.  For example, the static initializers for the main
    00038 // program might run before the static initializers for this library.
    00039 // That means that we cannot rely on static initialization in the
    00040 // library; there is no guarantee that things will get initialized in
    00041 // time.  This file contains definitions of all global variables that
    00042 // require initialization as arrays of characters.
    00043
    00044 // Because <iostream> declares the standard streams to be [io]stream
    00045 // types instead of say [io]fstream types, it is also necessary to
    00046 // allocate the actual file buffers in this file.
    00047 namespace __gnu_cxx
    00048 {
    00049   using namespace std;
    00050
    00051   typedef char fake_facet_name[sizeof(char*)]
    00052   __attribute__ ((aligned(__alignof__(char*))));
    00053   fake_facet_name facet_name[6 + _GLIBCPP_NUM_CATEGORIES];
    00054
    00055   typedef char fake_locale_Impl[sizeof(locale::_Impl)]
    00056   __attribute__ ((aligned(__alignof__(locale::_Impl))));
    00057   fake_locale_Impl c_locale_impl;
    00058
    00059
    00060   // NB: The asm directives renames these non-exported, namespace
    00061   // __gnu_cxx symbols into the mistakenly exported, namespace std
    00062   // symbols in GLIBCPP_3.2.
    00063   // The rename syntax is
    00064   //   asm (".symver currentname,oldname@@GLIBCPP_3.2")
    00065   // At the same time, these new __gnu_cxx symbols are not exported.
    00066   // In the future, GLIBCXX_ABI > 5 should remove all uses of
    00067   // _GLIBCPP_ASM_SYMVER in this file.
    00068   typedef char fake_locale[sizeof(locale)]
    00069   __attribute__ ((aligned(__alignof__(locale))));
    00070   fake_locale c_locale;
    00071   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8c_localeE, _ZSt8c_locale, GLIBCPP_3.2)
    00072
    00073   // GLIBCXX_ABI > 5 will not need this symbol at all.
    00074   // It's here just as a placeholder, as the size of this exported
    00075   // object changed. The new symbol is not exported.
    00076   const int o = sizeof(locale::_Impl) - sizeof(char*[_GLIBCPP_NUM_CATEGORIES]);
    00077   typedef char fake_locale_Impl_compat[o]
    00078   __attribute__ ((aligned(__alignof__(o))));
    00079   fake_locale_Impl_compat  c_locale_impl_compat;
    00080   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx20c_locale_impl_compatE, _ZSt13c_locale_impl, GLIBCPP_3.2)
    00081
    00082   typedef char fake_facet_vec[sizeof(locale::facet*)]
    00083   __attribute__ ((aligned(__alignof__(locale::facet*))));
    00084   fake_facet_vec facet_vec[_GLIBCPP_NUM_FACETS];
    00085   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9facet_vecE, _ZSt9facet_vec, GLIBCPP_3.2)
    00086
    00087   typedef char fake_ctype_c[sizeof(std::ctype<char>)]
    00088   __attribute__ ((aligned(__alignof__(std::ctype<char>))));
    00089   fake_ctype_c ctype_c;
    00090   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7ctype_cE, _ZSt7ctype_c, GLIBCPP_3.2)
    00091
    00092   typedef char fake_collate_c[sizeof(std::collate<char>)]
    00093   __attribute__ ((aligned(__alignof__(std::collate<char>))));
    00094   fake_collate_c collate_c;
    00095   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9collate_cE, _ZSt9collate_c, GLIBCPP_3.2)
    00096
    00097   typedef char fake_numpunct_c[sizeof(numpunct<char>)]
    00098   __attribute__ ((aligned(__alignof__(numpunct<char>))));
    00099   fake_numpunct_c numpunct_c;
    00100   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10numpunct_cE, _ZSt10numpunct_c, GLIBCPP_3.2)
    00101
    00102   typedef char fake_num_get_c[sizeof(num_get<char>)]
    00103   __attribute__ ((aligned(__alignof__(num_get<char>))));
    00104   fake_num_get_c num_get_c;
    00105   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_get_cE, _ZSt9num_get_c, GLIBCPP_3.2)
    00106
    00107   typedef char fake_num_put_c[sizeof(num_put<char>)]
    00108   __attribute__ ((aligned(__alignof__(num_put<char>))));
    00109   fake_num_put_c num_put_c;
    00110   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_put_cE, _ZSt9num_put_c, GLIBCPP_3.2)
    00111
    00112   typedef char fake_codecvt_c[sizeof(codecvt<char, char, mbstate_t>)]
    00113   __attribute__ ((aligned(__alignof__(codecvt<char, char, mbstate_t>))));
    00114   fake_codecvt_c codecvt_c;
    00115   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9codecvt_cE, _ZSt9codecvt_c, GLIBCPP_3.2)
    00116
    00117   typedef char fake_moneypunct_c[sizeof(moneypunct<char, true>)]
    00118   __attribute__ ((aligned(__alignof__(moneypunct<char, true>))));
    00119   fake_moneypunct_c moneypunct_tc;
    00120   fake_moneypunct_c moneypunct_fc;
    00121   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_tcE,\
    00122         _ZSt13moneypunct_tc, GLIBCPP_3.2)
    00123   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_fcE,\
    00124         _ZSt13moneypunct_fc, GLIBCPP_3.2)
    00125
    00126   typedef char fake_money_get_c[sizeof(money_get<char>)]
    00127   __attribute__ ((aligned(__alignof__(money_get<char>))));
    00128   fake_money_get_c money_get_c;
    00129   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_get_cE, _ZSt11money_get_c, GLIBCPP_3.2)
    00130
    00131   typedef char fake_money_put_c[sizeof(money_put<char>)]
    00132   __attribute__ ((aligned(__alignof__(money_put<char>))));
    00133   fake_money_put_c money_put_c;
    00134   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_put_cE, _ZSt11money_put_c, GLIBCPP_3.2)
    00135
    00136   typedef char fake_timepunct_c[sizeof(__timepunct<char>)]
    00137   __attribute__ ((aligned(__alignof__(__timepunct<char>))));
    00138   fake_timepunct_c timepunct_c;
    00139   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11timepunct_cE, _ZSt11timepunct_c, GLIBCPP_3.2)
    00140
    00141   typedef char fake_time_get_c[sizeof(time_get<char>)]
    00142   __attribute__ ((aligned(__alignof__(time_get<char>))));
    00143   fake_time_get_c time_get_c;
    00144   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_get_cE, _ZSt10time_get_c, GLIBCPP_3.2)
    00145
    00146   typedef char fake_time_put_c[sizeof(time_put<char>)]
    00147   __attribute__ ((aligned(__alignof__(time_put<char>))));
    00148   fake_time_put_c time_put_c;
    00149   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_put_cE, _ZSt10time_put_c, GLIBCPP_3.2)
    00150
    00151   typedef char fake_messages_c[sizeof(messages<char>)]
    00152   __attribute__ ((aligned(__alignof__(messages<char>))));
    00153   fake_messages_c messages_c;
    00154   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10messages_cE, _ZSt10messages_c, GLIBCPP_3.2)
    00155
    00156 #ifdef  _GLIBCPP_USE_WCHAR_T
    00157   typedef char fake_wtype_w[sizeof(std::ctype<wchar_t>)]
    00158   __attribute__ ((aligned(__alignof__(std::ctype<wchar_t>))));
    00159   fake_wtype_w ctype_w;
    00160   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7ctype_wE, _ZSt7ctype_w, GLIBCPP_3.2)
    00161
    00162   typedef char fake_wollate_w[sizeof(std::collate<wchar_t>)]
    00163   __attribute__ ((aligned(__alignof__(std::collate<wchar_t>))));
    00164   fake_wollate_w collate_w;
    00165   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9collate_wE, _ZSt9collate_w, GLIBCPP_3.2)
    00166
    00167   typedef char fake_numpunct_w[sizeof(numpunct<wchar_t>)]
    00168   __attribute__ ((aligned(__alignof__(numpunct<wchar_t>))));
    00169   fake_numpunct_w numpunct_w;
    00170   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10numpunct_wE, _ZSt10numpunct_w, GLIBCPP_3.2)
    00171
    00172   typedef char fake_num_get_w[sizeof(num_get<wchar_t>)]
    00173   __attribute__ ((aligned(__alignof__(num_get<wchar_t>))));
    00174   fake_num_get_w num_get_w;
    00175   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_get_wE, _ZSt9num_get_w, GLIBCPP_3.2)
    00176
    00177   typedef char fake_num_put_w[sizeof(num_put<wchar_t>)]
    00178   __attribute__ ((aligned(__alignof__(num_put<wchar_t>))));
    00179   fake_num_put_w num_put_w;
    00180   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_put_wE, _ZSt9num_put_w, GLIBCPP_3.2)
    00181
    00182   typedef char fake_wodecvt_w[sizeof(codecvt<wchar_t, char, mbstate_t>)]
    00183   __attribute__ ((aligned(__alignof__(codecvt<wchar_t, char, mbstate_t>))));
    00184   fake_wodecvt_w codecvt_w;
    00185   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9codecvt_wE, _ZSt9codecvt_w, GLIBCPP_3.2)
    00186
    00187   typedef char fake_moneypunct_w[sizeof(moneypunct<wchar_t, true>)]
    00188   __attribute__ ((aligned(__alignof__(moneypunct<wchar_t, true>))));
    00189   fake_moneypunct_w moneypunct_tw;
    00190   fake_moneypunct_w moneypunct_fw;
    00191   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_twE,\
    00192         _ZSt13moneypunct_tw, GLIBCPP_3.2)
    00193   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_fwE,\
    00194         _ZSt13moneypunct_fw, GLIBCPP_3.2)
    00195
    00196   typedef char fake_money_get_w[sizeof(money_get<wchar_t>)]
    00197   __attribute__ ((aligned(__alignof__(money_get<wchar_t>))));
    00198   fake_money_get_w money_get_w;
    00199   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_get_wE, _ZSt11money_get_w, GLIBCPP_3.2)
    00200
    00201   typedef char fake_money_put_w[sizeof(money_put<wchar_t>)]
    00202   __attribute__ ((aligned(__alignof__(money_put<wchar_t>))));
    00203   fake_money_put_w money_put_w;
    00204   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_put_wE, _ZSt11money_put_w, GLIBCPP_3.2)
    00205
    00206   typedef char fake_timepunct_w[sizeof(__timepunct<wchar_t>)]
    00207   __attribute__ ((aligned(__alignof__(__timepunct<wchar_t>))));
    00208   fake_timepunct_w timepunct_w;
    00209   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11timepunct_wE, _ZSt11timepunct_w, GLIBCPP_3.2)
    00210
    00211   typedef char fake_time_get_w[sizeof(time_get<wchar_t>)]
    00212   __attribute__ ((aligned(__alignof__(time_get<wchar_t>))));
    00213   fake_time_get_w time_get_w;
    00214   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_get_wE, _ZSt10time_get_w, GLIBCPP_3.2)
    00215
    00216   typedef char fake_time_put_w[sizeof(time_put<wchar_t>)]
    00217   __attribute__ ((aligned(__alignof__(time_put<wchar_t>))));
    00218   fake_time_put_w time_put_w;
    00219   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_put_wE, _ZSt10time_put_w, GLIBCPP_3.2)
    00220
    00221   typedef char fake_messages_w[sizeof(messages<wchar_t>)]
    00222   __attribute__ ((aligned(__alignof__(messages<wchar_t>))));
    00223   fake_messages_w messages_w;
    00224   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10messages_wE, _ZSt10messages_w, GLIBCPP_3.2)
    00225 #endif
    00226
    00227   typedef char fake_filebuf[sizeof(stdio_filebuf<char>)]
    00228   __attribute__ ((aligned(__alignof__(stdio_filebuf<char>))));
    00229   fake_filebuf buf_cout;
    00230   fake_filebuf buf_cin;
    00231   fake_filebuf buf_cerr;
    00232   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_coutE, _ZSt8buf_cout, GLIBCPP_3.2)
    00233   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7buf_cinE, _ZSt7buf_cin, GLIBCPP_3.2)
    00234   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_cerrE, _ZSt8buf_cerr, GLIBCPP_3.2)
    00235
    00236 #ifdef _GLIBCPP_USE_WCHAR_T
    00237   typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)]
    00238   __attribute__ ((aligned(__alignof__(stdio_filebuf<wchar_t>))));
    00239   fake_wfilebuf buf_wcout;
    00240   fake_wfilebuf buf_wcin;
    00241   fake_wfilebuf buf_wcerr;
    00242   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9buf_wcoutE, _ZSt9buf_wcout, GLIBCPP_3.2)
    00243   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_wcinE, _ZSt8buf_wcin, GLIBCPP_3.2)
    00244   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9buf_wcerrE, _ZSt9buf_wcerr, GLIBCPP_3.2)
    00245 #endif
    00246
    00247   // Globals for once-only runtime initialization of mutex objects.  This
    00248   // allows static initialization of these objects on systems that need a
    00249   // function call to initialize a mutex.  For example, see stl_threads.h.
    00250 #ifdef __GTHREAD_MUTEX_INIT
    00251   // Need to provide explicit instantiations of static data for
    00252   // systems with broken weak linkage support.
    00253   template __gthread_mutex_t _Swap_lock_struct<0>::_S_swap_lock;
    00254 #elif defined(__GTHREAD_MUTEX_INIT_FUNCTION)
    00255   __gthread_once_t _GLIBCPP_once = __GTHREAD_ONCE_INIT;
    00256   __gthread_mutex_t _GLIBCPP_mutex;
    00257   __gthread_mutex_t *_GLIBCPP_mutex_address;
    00258
    00259   // Once-only initializer function for _GLIBCPP_mutex.
    00260   void
    00261   _GLIBCPP_mutex_init ()
    00262   { __GTHREAD_MUTEX_INIT_FUNCTION (&_GLIBCPP_mutex); }
    00263
    00264   // Once-only initializer function for _GLIBCPP_mutex_address.
    00265   void
    00266   _GLIBCPP_mutex_address_init ()
    00267   { __GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCPP_mutex_address); }
    00268 #endif
    00269 } // namespace __gnu_cxx
    00270
    00271 namespace std
    00272 {
    00273   // Standard stream objects.
    00274   typedef char fake_istream[sizeof(istream)]
    00275   __attribute__ ((aligned(__alignof__(istream))));
    00276   typedef char fake_ostream[sizeof(ostream)]
    00277   __attribute__ ((aligned(__alignof__(ostream))));
    00278   fake_istream cin;
    00279   fake_ostream cout;
    00280   fake_ostream cerr;
    00281   fake_ostream clog;
    00282
    00283 #ifdef _GLIBCPP_USE_WCHAR_T
    00284   typedef char fake_wistream[sizeof(wistream)]
    00285   __attribute__ ((aligned(__alignof__(wistream))));
    00286   typedef char fake_wostream[sizeof(wostream)]
    00287   __attribute__ ((aligned(__alignof__(wostream))));
    00288   fake_wistream wcin;
    00289   fake_wostream wcout;
    00290   fake_wostream wcerr;
    00291   fake_wostream wclog;
    00292 #endif
    00293 } // namespace std