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   // To support combined facets and caches in facet array
00088   typedef char fake_facet_cache_vec[sizeof(locale::facet*)]
00089   __attribute__ ((aligned(__alignof__(locale::facet*))));
00090   fake_facet_cache_vec facet_cache_vec[2 * _GLIBCPP_NUM_FACETS];
00091 
00092   typedef char fake_ctype_c[sizeof(std::ctype<char>)]
00093   __attribute__ ((aligned(__alignof__(std::ctype<char>))));
00094   fake_ctype_c ctype_c;
00095   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7ctype_cE, _ZSt7ctype_c, GLIBCPP_3.2)
00096 
00097   typedef char fake_collate_c[sizeof(std::collate<char>)]
00098   __attribute__ ((aligned(__alignof__(std::collate<char>))));
00099   fake_collate_c collate_c;
00100   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9collate_cE, _ZSt9collate_c, GLIBCPP_3.2)
00101 
00102   typedef char fake_numpunct_c[sizeof(numpunct<char>)]
00103   __attribute__ ((aligned(__alignof__(numpunct<char>))));
00104   fake_numpunct_c numpunct_c;
00105   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10numpunct_cE, _ZSt10numpunct_c, GLIBCPP_3.2)
00106 
00107   typedef char fake_num_get_c[sizeof(num_get<char>)]
00108   __attribute__ ((aligned(__alignof__(num_get<char>))));
00109   fake_num_get_c num_get_c;
00110   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_get_cE, _ZSt9num_get_c, GLIBCPP_3.2)
00111 
00112   typedef char fake_num_put_c[sizeof(num_put<char>)]
00113   __attribute__ ((aligned(__alignof__(num_put<char>))));
00114   fake_num_put_c num_put_c;
00115   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_put_cE, _ZSt9num_put_c, GLIBCPP_3.2)
00116 
00117   typedef char fake_codecvt_c[sizeof(codecvt<char, char, mbstate_t>)]
00118   __attribute__ ((aligned(__alignof__(codecvt<char, char, mbstate_t>))));
00119   fake_codecvt_c codecvt_c;
00120   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9codecvt_cE, _ZSt9codecvt_c, GLIBCPP_3.2)
00121 
00122   typedef char fake_moneypunct_c[sizeof(moneypunct<char, true>)]
00123   __attribute__ ((aligned(__alignof__(moneypunct<char, true>))));
00124   fake_moneypunct_c moneypunct_tc;
00125   fake_moneypunct_c moneypunct_fc;
00126   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_tcE,\
00127         _ZSt13moneypunct_tc, GLIBCPP_3.2)
00128   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_fcE,\
00129         _ZSt13moneypunct_fc, GLIBCPP_3.2)
00130 
00131   typedef char fake_money_get_c[sizeof(money_get<char>)]
00132   __attribute__ ((aligned(__alignof__(money_get<char>))));
00133   fake_money_get_c money_get_c;
00134   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_get_cE, _ZSt11money_get_c, GLIBCPP_3.2)
00135   
00136   typedef char fake_money_put_c[sizeof(money_put<char>)]
00137   __attribute__ ((aligned(__alignof__(money_put<char>))));
00138   fake_money_put_c money_put_c;
00139   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_put_cE, _ZSt11money_put_c, GLIBCPP_3.2)
00140 
00141   typedef char fake_timepunct_c[sizeof(__timepunct<char>)]
00142   __attribute__ ((aligned(__alignof__(__timepunct<char>))));
00143   fake_timepunct_c timepunct_c;
00144   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11timepunct_cE, _ZSt11timepunct_c, GLIBCPP_3.2)
00145 
00146   typedef char fake_time_get_c[sizeof(time_get<char>)]
00147   __attribute__ ((aligned(__alignof__(time_get<char>))));
00148   fake_time_get_c time_get_c;
00149   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_get_cE, _ZSt10time_get_c, GLIBCPP_3.2)
00150 
00151   typedef char fake_time_put_c[sizeof(time_put<char>)]
00152   __attribute__ ((aligned(__alignof__(time_put<char>))));
00153   fake_time_put_c time_put_c;
00154   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_put_cE, _ZSt10time_put_c, GLIBCPP_3.2)
00155 
00156   typedef char fake_messages_c[sizeof(messages<char>)]
00157   __attribute__ ((aligned(__alignof__(messages<char>))));
00158   fake_messages_c messages_c;
00159   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10messages_cE, _ZSt10messages_c, GLIBCPP_3.2)
00160 
00161 #ifdef  _GLIBCPP_USE_WCHAR_T
00162   typedef char fake_wtype_w[sizeof(std::ctype<wchar_t>)]
00163   __attribute__ ((aligned(__alignof__(std::ctype<wchar_t>))));
00164   fake_wtype_w ctype_w;
00165   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7ctype_wE, _ZSt7ctype_w, GLIBCPP_3.2)
00166 
00167   typedef char fake_wollate_w[sizeof(std::collate<wchar_t>)]
00168   __attribute__ ((aligned(__alignof__(std::collate<wchar_t>))));
00169   fake_wollate_w collate_w;
00170   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9collate_wE, _ZSt9collate_w, GLIBCPP_3.2)
00171 
00172   typedef char fake_numpunct_w[sizeof(numpunct<wchar_t>)]
00173   __attribute__ ((aligned(__alignof__(numpunct<wchar_t>))));
00174   fake_numpunct_w numpunct_w;
00175   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10numpunct_wE, _ZSt10numpunct_w, GLIBCPP_3.2)
00176 
00177   typedef char fake_num_get_w[sizeof(num_get<wchar_t>)]
00178   __attribute__ ((aligned(__alignof__(num_get<wchar_t>))));
00179   fake_num_get_w num_get_w;
00180   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_get_wE, _ZSt9num_get_w, GLIBCPP_3.2)
00181 
00182   typedef char fake_num_put_w[sizeof(num_put<wchar_t>)]
00183   __attribute__ ((aligned(__alignof__(num_put<wchar_t>))));
00184   fake_num_put_w num_put_w;
00185   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9num_put_wE, _ZSt9num_put_w, GLIBCPP_3.2)
00186 
00187   typedef char fake_wodecvt_w[sizeof(codecvt<wchar_t, char, mbstate_t>)]
00188   __attribute__ ((aligned(__alignof__(codecvt<wchar_t, char, mbstate_t>))));
00189   fake_wodecvt_w codecvt_w;
00190   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9codecvt_wE, _ZSt9codecvt_w, GLIBCPP_3.2)
00191 
00192   typedef char fake_moneypunct_w[sizeof(moneypunct<wchar_t, true>)]
00193   __attribute__ ((aligned(__alignof__(moneypunct<wchar_t, true>))));
00194   fake_moneypunct_w moneypunct_tw;
00195   fake_moneypunct_w moneypunct_fw;
00196   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_twE,\
00197         _ZSt13moneypunct_tw, GLIBCPP_3.2)
00198   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx13moneypunct_fwE,\
00199         _ZSt13moneypunct_fw, GLIBCPP_3.2)
00200 
00201   typedef char fake_money_get_w[sizeof(money_get<wchar_t>)]
00202   __attribute__ ((aligned(__alignof__(money_get<wchar_t>))));
00203   fake_money_get_w money_get_w;
00204   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_get_wE, _ZSt11money_get_w, GLIBCPP_3.2)
00205   
00206   typedef char fake_money_put_w[sizeof(money_put<wchar_t>)]
00207   __attribute__ ((aligned(__alignof__(money_put<wchar_t>))));
00208   fake_money_put_w money_put_w;
00209   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11money_put_wE, _ZSt11money_put_w, GLIBCPP_3.2)
00210 
00211   typedef char fake_timepunct_w[sizeof(__timepunct<wchar_t>)]
00212   __attribute__ ((aligned(__alignof__(__timepunct<wchar_t>))));
00213   fake_timepunct_w timepunct_w;
00214   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx11timepunct_wE, _ZSt11timepunct_w, GLIBCPP_3.2)
00215 
00216   typedef char fake_time_get_w[sizeof(time_get<wchar_t>)]
00217   __attribute__ ((aligned(__alignof__(time_get<wchar_t>))));
00218   fake_time_get_w time_get_w;
00219   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_get_wE, _ZSt10time_get_w, GLIBCPP_3.2)
00220 
00221   typedef char fake_time_put_w[sizeof(time_put<wchar_t>)]
00222   __attribute__ ((aligned(__alignof__(time_put<wchar_t>))));
00223   fake_time_put_w time_put_w;
00224   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10time_put_wE, _ZSt10time_put_w, GLIBCPP_3.2)
00225 
00226   typedef char fake_messages_w[sizeof(messages<wchar_t>)]
00227   __attribute__ ((aligned(__alignof__(messages<wchar_t>))));
00228   fake_messages_w messages_w;
00229   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx10messages_wE, _ZSt10messages_w, GLIBCPP_3.2)
00230 #endif
00231 
00232   // Storage for static C locale caches
00233   typedef char fake_locale_cache_np_c[sizeof(std::__locale_cache<numpunct<char> >)]
00234   __attribute__ ((aligned(__alignof__(std::__locale_cache<numpunct<char> >))));
00235   fake_locale_cache_np_c locale_cache_np_c;
00236 
00237 #ifdef _GLIBCPP_USE_WCHAR_T
00238   typedef char fake_locale_cache_np_w[sizeof(std::__locale_cache<numpunct<wchar_t> >)]
00239   __attribute__ ((aligned(__alignof__(std::__locale_cache<numpunct<wchar_t> >))));
00240   fake_locale_cache_np_w locale_cache_np_w;
00241 #endif
00242 
00243   typedef char fake_filebuf[sizeof(stdio_filebuf<char>)]
00244   __attribute__ ((aligned(__alignof__(stdio_filebuf<char>))));
00245   fake_filebuf buf_cout;
00246   fake_filebuf buf_cin;
00247   fake_filebuf buf_cerr;
00248   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_coutE, _ZSt8buf_cout, GLIBCPP_3.2)
00249   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx7buf_cinE, _ZSt7buf_cin, GLIBCPP_3.2)
00250   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_cerrE, _ZSt8buf_cerr, GLIBCPP_3.2)
00251 
00252 #ifdef _GLIBCPP_USE_WCHAR_T
00253   typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)]
00254   __attribute__ ((aligned(__alignof__(stdio_filebuf<wchar_t>))));
00255   fake_wfilebuf buf_wcout;
00256   fake_wfilebuf buf_wcin;
00257   fake_wfilebuf buf_wcerr;
00258   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9buf_wcoutE, _ZSt9buf_wcout, GLIBCPP_3.2)
00259   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8buf_wcinE, _ZSt8buf_wcin, GLIBCPP_3.2)
00260   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx9buf_wcerrE, _ZSt9buf_wcerr, GLIBCPP_3.2)
00261 #endif
00262 
00263   // Globals for once-only runtime initialization of mutex objects.  This
00264   // allows static initialization of these objects on systems that need a
00265   // function call to initialize a mutex.  For example, see stl_threads.h.
00266 #ifdef __GTHREAD_MUTEX_INIT
00267   // Need to provide explicit instantiations of static data for
00268   // systems with broken weak linkage support.
00269   template __gthread_mutex_t _Swap_lock_struct<0>::_S_swap_lock;
00270 #elif defined(__GTHREAD_MUTEX_INIT_FUNCTION)
00271   __gthread_once_t _GLIBCPP_once = __GTHREAD_ONCE_INIT;
00272   __gthread_mutex_t _GLIBCPP_mutex;
00273   __gthread_mutex_t *_GLIBCPP_mutex_address;
00274   
00275   // Once-only initializer function for _GLIBCPP_mutex.  
00276   void
00277   _GLIBCPP_mutex_init ()
00278   { __GTHREAD_MUTEX_INIT_FUNCTION (&_GLIBCPP_mutex); }
00279 
00280   // Once-only initializer function for _GLIBCPP_mutex_address.  
00281   void
00282   _GLIBCPP_mutex_address_init ()
00283   { __GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCPP_mutex_address); }
00284 #endif
00285 
00286   // GLIBCXX_ABI.
00287   struct __compat
00288   {
00289     static const char _S_atoms[];
00290   };
00291   const char __compat::_S_atoms[] = "0123456789eEabcdfABCDF";
00292   _GLIBCPP_ASM_SYMVER(_ZN9__gnu_cxx8__compat8_S_atomsE, _ZNSt10__num_base8_S_atomsE, GLIBCPP_3.2)
00293 } // namespace __gnu_cxx
00294 
00295 namespace std
00296 {
00297   // Standard stream objects.
00298   typedef char fake_istream[sizeof(istream)]
00299   __attribute__ ((aligned(__alignof__(istream))));
00300   typedef char fake_ostream[sizeof(ostream)] 
00301   __attribute__ ((aligned(__alignof__(ostream))));
00302   fake_istream cin;
00303   fake_ostream cout;
00304   fake_ostream cerr;
00305   fake_ostream clog;
00306 
00307 #ifdef _GLIBCPP_USE_WCHAR_T
00308   typedef char fake_wistream[sizeof(wistream)] 
00309   __attribute__ ((aligned(__alignof__(wistream))));
00310   typedef char fake_wostream[sizeof(wostream)] 
00311   __attribute__ ((aligned(__alignof__(wostream))));
00312   fake_wistream wcin;
00313   fake_wostream wcout;
00314   fake_wostream wcerr;
00315   fake_wostream wclog;
00316 #endif
00317 } // namespace std

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