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   // Also, need locale caches for standard stream objects...
00052   typedef char fake_locale_cache[sizeof(__locale_cache<char>)]
00053   __attribute__ ((aligned(__alignof__(__locale_cache<char>))));
00054   fake_locale_cache locale_cache_cout;
00055   fake_locale_cache locale_cache_cin;
00056   fake_locale_cache locale_cache_cerr;
00057   fake_locale_cache locale_cache_clog;
00058 
00059 #ifdef _GLIBCPP_USE_WCHAR_T
00060   typedef char fake_wlocale_cache[sizeof(__locale_cache<wchar_t>)]
00061   __attribute__ ((aligned(__alignof__(__locale_cache<wchar_t>))));
00062   fake_wlocale_cache locale_cache_wcout;
00063   fake_wlocale_cache locale_cache_wcin;
00064   fake_wlocale_cache locale_cache_wcerr;
00065   fake_wlocale_cache locale_cache_wclog;
00066 #endif
00067  
00068   typedef char fake_facet_name[sizeof(char*)]
00069   __attribute__ ((aligned(__alignof__(char*))));
00070   fake_facet_name facet_name[6 + _GLIBCPP_NUM_CATEGORIES];
00071 
00072   typedef char fake_locale_Impl[sizeof(locale::_Impl)]
00073   __attribute__ ((aligned(__alignof__(locale::_Impl))));
00074   fake_locale_Impl c_locale_impl;
00075 
00076 
00077   // NB: The asm directives renames these non-exported, namespace
00078   // __gnu_cxx symbols into the mistakenly exported, namespace std
00079   // symbols in GLIBCPP_3.2.
00080   // The rename syntax is 
00081   //   asm (".symver currentname,oldname@@GLIBCPP_3.2")
00082   // At the same time, these new __gnu_cxx symbols are not exported.
00083   // In the future, GLIBCXX_ABI > 5 should remove all uses of
00084   // _GLIBCPP_ASM_SYMVER in this file.
00085   typedef char fake_locale[sizeof(locale)]
00086   __attribute__ ((aligned(__alignof__(locale))));
00087   fake_locale c_locale;
00088   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8c_localeE, _ZSt8c_locale, GLIBCPP_3.2)
00089 
00090   // GLIBCXX_ABI > 5 will not need this symbol at all.
00091   // It's here just as a placeholder, as the size of this exported
00092   // object changed. The new symbol is not exported.
00093   const int o = sizeof(locale::_Impl) - sizeof(char*[_GLIBCPP_NUM_CATEGORIES]);
00094   typedef char fake_locale_Impl_compat[o]
00095   __attribute__ ((aligned(__alignof__(o))));
00096   fake_locale_Impl_compat  c_locale_impl_compat;
00097   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx20c_locale_impl_compatE, _ZSt13c_locale_impl, GLIBCPP_3.2)
00098 
00099   typedef char fake_facet_vec[sizeof(locale::facet*)]
00100   __attribute__ ((aligned(__alignof__(locale::facet*))));
00101   fake_facet_vec facet_vec[_GLIBCPP_NUM_FACETS];
00102   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9facet_vecE, _ZSt9facet_vec, GLIBCPP_3.2)
00103 
00104   typedef char fake_ctype_c[sizeof(std::ctype<char>)]
00105   __attribute__ ((aligned(__alignof__(std::ctype<char>))));
00106   fake_ctype_c ctype_c;
00107   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7ctype_cE, _ZSt7ctype_c, GLIBCPP_3.2)
00108 
00109   typedef char fake_collate_c[sizeof(std::collate<char>)]
00110   __attribute__ ((aligned(__alignof__(std::collate<char>))));
00111   fake_collate_c collate_c;
00112   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9collate_cE, _ZSt9collate_c, GLIBCPP_3.2)
00113 
00114   typedef char fake_numpunct_c[sizeof(numpunct<char>)]
00115   __attribute__ ((aligned(__alignof__(numpunct<char>))));
00116   fake_numpunct_c numpunct_c;
00117   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10numpunct_cE, _ZSt10numpunct_c, GLIBCPP_3.2)
00118 
00119   typedef char fake_num_get_c[sizeof(num_get<char>)]
00120   __attribute__ ((aligned(__alignof__(num_get<char>))));
00121   fake_num_get_c num_get_c;
00122   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_get_cE, _ZSt9num_get_c, GLIBCPP_3.2)
00123 
00124   typedef char fake_num_put_c[sizeof(num_put<char>)]
00125   __attribute__ ((aligned(__alignof__(num_put<char>))));
00126   fake_num_put_c num_put_c;
00127   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_put_cE, _ZSt9num_put_c, GLIBCPP_3.2)
00128 
00129   typedef char fake_codecvt_c[sizeof(codecvt<char, char, mbstate_t>)]
00130   __attribute__ ((aligned(__alignof__(codecvt<char, char, mbstate_t>))));
00131   fake_codecvt_c codecvt_c;
00132   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9codecvt_cE, _ZSt9codecvt_c, GLIBCPP_3.2)
00133 
00134   typedef char fake_moneypunct_c[sizeof(moneypunct<char, true>)]
00135   __attribute__ ((aligned(__alignof__(moneypunct<char, true>))));
00136   fake_moneypunct_c moneypunct_tc;
00137   fake_moneypunct_c moneypunct_fc;
00138   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_tcE,\
00139         _ZSt13moneypunct_tc, GLIBCPP_3.2)
00140   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_fcE,\
00141         _ZSt13moneypunct_fc, GLIBCPP_3.2)
00142 
00143   typedef char fake_money_get_c[sizeof(money_get<char>)]
00144   __attribute__ ((aligned(__alignof__(money_get<char>))));
00145   fake_money_get_c money_get_c;
00146   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_get_cE, _ZSt11money_get_c, GLIBCPP_3.2)
00147   
00148   typedef char fake_money_put_c[sizeof(money_put<char>)]
00149   __attribute__ ((aligned(__alignof__(money_put<char>))));
00150   fake_money_put_c money_put_c;
00151   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_put_cE, _ZSt11money_put_c, GLIBCPP_3.2)
00152 
00153   typedef char fake_timepunct_c[sizeof(__timepunct<char>)]
00154   __attribute__ ((aligned(__alignof__(__timepunct<char>))));
00155   fake_timepunct_c timepunct_c;
00156   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11timepunct_cE, _ZSt11timepunct_c, GLIBCPP_3.2)
00157 
00158   typedef char fake_time_get_c[sizeof(time_get<char>)]
00159   __attribute__ ((aligned(__alignof__(time_get<char>))));
00160   fake_time_get_c time_get_c;
00161   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_get_cE, _ZSt10time_get_c, GLIBCPP_3.2)
00162 
00163   typedef char fake_time_put_c[sizeof(time_put<char>)]
00164   __attribute__ ((aligned(__alignof__(time_put<char>))));
00165   fake_time_put_c time_put_c;
00166   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_put_cE, _ZSt10time_put_c, GLIBCPP_3.2)
00167 
00168   typedef char fake_messages_c[sizeof(messages<char>)]
00169   __attribute__ ((aligned(__alignof__(messages<char>))));
00170   fake_messages_c messages_c;
00171   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10messages_cE, _ZSt10messages_c, GLIBCPP_3.2)
00172 
00173 #ifdef  _GLIBCPP_USE_WCHAR_T
00174   typedef char fake_wtype_w[sizeof(std::ctype<wchar_t>)]
00175   __attribute__ ((aligned(__alignof__(std::ctype<wchar_t>))));
00176   fake_wtype_w ctype_w;
00177   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7ctype_wE, _ZSt7ctype_w, GLIBCPP_3.2)
00178 
00179   typedef char fake_wollate_w[sizeof(std::collate<wchar_t>)]
00180   __attribute__ ((aligned(__alignof__(std::collate<wchar_t>))));
00181   fake_wollate_w collate_w;
00182   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9collate_wE, _ZSt9collate_w, GLIBCPP_3.2)
00183 
00184   typedef char fake_numpunct_w[sizeof(numpunct<wchar_t>)]
00185   __attribute__ ((aligned(__alignof__(numpunct<wchar_t>))));
00186   fake_numpunct_w numpunct_w;
00187   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10numpunct_wE, _ZSt10numpunct_w, GLIBCPP_3.2)
00188 
00189   typedef char fake_num_get_w[sizeof(num_get<wchar_t>)]
00190   __attribute__ ((aligned(__alignof__(num_get<wchar_t>))));
00191   fake_num_get_w num_get_w;
00192   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_get_wE, _ZSt9num_get_w, GLIBCPP_3.2)
00193 
00194   typedef char fake_num_put_w[sizeof(num_put<wchar_t>)]
00195   __attribute__ ((aligned(__alignof__(num_put<wchar_t>))));
00196   fake_num_put_w num_put_w;
00197   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_put_wE, _ZSt9num_put_w, GLIBCPP_3.2)
00198 
00199   typedef char fake_wodecvt_w[sizeof(codecvt<wchar_t, char, mbstate_t>)]
00200   __attribute__ ((aligned(__alignof__(codecvt<wchar_t, char, mbstate_t>))));
00201   fake_wodecvt_w codecvt_w;
00202   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9codecvt_wE, _ZSt9codecvt_w, GLIBCPP_3.2)
00203 
00204   typedef char fake_moneypunct_w[sizeof(moneypunct<wchar_t, true>)]
00205   __attribute__ ((aligned(__alignof__(moneypunct<wchar_t, true>))));
00206   fake_moneypunct_w moneypunct_tw;
00207   fake_moneypunct_w moneypunct_fw;
00208   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_twE,\
00209         _ZSt13moneypunct_tw, GLIBCPP_3.2)
00210   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_fwE,\
00211         _ZSt13moneypunct_fw, GLIBCPP_3.2)
00212 
00213   typedef char fake_money_get_w[sizeof(money_get<wchar_t>)]
00214   __attribute__ ((aligned(__alignof__(money_get<wchar_t>))));
00215   fake_money_get_w money_get_w;
00216   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_get_wE, _ZSt11money_get_w, GLIBCPP_3.2)
00217   
00218   typedef char fake_money_put_w[sizeof(money_put<wchar_t>)]
00219   __attribute__ ((aligned(__alignof__(money_put<wchar_t>))));
00220   fake_money_put_w money_put_w;
00221   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_put_wE, _ZSt11money_put_w, GLIBCPP_3.2)
00222 
00223   typedef char fake_timepunct_w[sizeof(__timepunct<wchar_t>)]
00224   __attribute__ ((aligned(__alignof__(__timepunct<wchar_t>))));
00225   fake_timepunct_w timepunct_w;
00226   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11timepunct_wE, _ZSt11timepunct_w, GLIBCPP_3.2)
00227 
00228   typedef char fake_time_get_w[sizeof(time_get<wchar_t>)]
00229   __attribute__ ((aligned(__alignof__(time_get<wchar_t>))));
00230   fake_time_get_w time_get_w;
00231   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_get_wE, _ZSt10time_get_w, GLIBCPP_3.2)
00232 
00233   typedef char fake_time_put_w[sizeof(time_put<wchar_t>)]
00234   __attribute__ ((aligned(__alignof__(time_put<wchar_t>))));
00235   fake_time_put_w time_put_w;
00236   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_put_wE, _ZSt10time_put_w, GLIBCPP_3.2)
00237 
00238   typedef char fake_messages_w[sizeof(messages<wchar_t>)]
00239   __attribute__ ((aligned(__alignof__(messages<wchar_t>))));
00240   fake_messages_w messages_w;
00241   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10messages_wE, _ZSt10messages_w, GLIBCPP_3.2)
00242 #endif
00243 
00244   typedef char fake_filebuf[sizeof(stdio_filebuf<char>)]
00245   __attribute__ ((aligned(__alignof__(stdio_filebuf<char>))));
00246   fake_filebuf buf_cout;
00247   fake_filebuf buf_cin;
00248   fake_filebuf buf_cerr;
00249   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_coutE, _ZSt8buf_cout, GLIBCPP_3.2)
00250   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7buf_cinE, _ZSt7buf_cin, GLIBCPP_3.2)
00251   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_cerrE, _ZSt8buf_cerr, GLIBCPP_3.2)
00252 
00253 #ifdef _GLIBCPP_USE_WCHAR_T
00254   typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)]
00255   __attribute__ ((aligned(__alignof__(stdio_filebuf<wchar_t>))));
00256   fake_wfilebuf buf_wcout;
00257   fake_wfilebuf buf_wcin;
00258   fake_wfilebuf buf_wcerr;
00259   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9buf_wcoutE, _ZSt9buf_wcout, GLIBCPP_3.2)
00260   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_wcinE, _ZSt8buf_wcin, GLIBCPP_3.2)
00261   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9buf_wcerrE, _ZSt9buf_wcerr, GLIBCPP_3.2)
00262 #endif
00263 
00264   // Globals for once-only runtime initialization of mutex objects.  This
00265   // allows static initialization of these objects on systems that need a
00266   // function call to initialize a mutex.  For example, see stl_threads.h.
00267 #ifdef __GTHREAD_MUTEX_INIT
00268   // Need to provide explicit instantiations of static data for
00269   // systems with broken weak linkage support.
00270   template __gthread_mutex_t _Swap_lock_struct<0>::_S_swap_lock;
00271 #elif defined(__GTHREAD_MUTEX_INIT_FUNCTION)
00272   __gthread_once_t _GLIBCPP_once = __GTHREAD_ONCE_INIT;
00273   __gthread_mutex_t _GLIBCPP_mutex;
00274   __gthread_mutex_t *_GLIBCPP_mutex_address;
00275   
00276   // Once-only initializer function for _GLIBCPP_mutex.  
00277   void
00278   _GLIBCPP_mutex_init ()
00279   { __GTHREAD_MUTEX_INIT_FUNCTION (&_GLIBCPP_mutex); }
00280 
00281   // Once-only initializer function for _GLIBCPP_mutex_address.  
00282   void
00283   _GLIBCPP_mutex_address_init ()
00284   { __GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCPP_mutex_address); }
00285 #endif
00286 
00287   // GLIBCXX_ABI.
00288   struct __compat
00289   {
00290     static const char _S_atoms[];
00291   };
00292   const char __compat::_S_atoms[] = "0123456789eEabcdfABCDF";
00293   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8__compat8_S_atomsE, _ZNSt10__num_base8_S_atomsE, GLIBCPP_3.2)
00294 } // namespace __gnu_cxx
00295 
00296 namespace std
00297 {
00298   // Standard stream objects.
00299   typedef char fake_istream[sizeof(istream)]
00300   __attribute__ ((aligned(__alignof__(istream))));
00301   typedef char fake_ostream[sizeof(ostream)] 
00302   __attribute__ ((aligned(__alignof__(ostream))));
00303   fake_istream cin;
00304   fake_ostream cout;
00305   fake_ostream cerr;
00306   fake_ostream clog;
00307 
00308 #ifdef _GLIBCPP_USE_WCHAR_T
00309   typedef char fake_wistream[sizeof(wistream)] 
00310   __attribute__ ((aligned(__alignof__(wistream))));
00311   typedef char fake_wostream[sizeof(wostream)] 
00312   __attribute__ ((aligned(__alignof__(wostream))));
00313   fake_wistream wcin;
00314   fake_wostream wcout;
00315   fake_wostream wcerr;
00316   fake_wostream wclog;
00317 #endif
00318 } // namespace std

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