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Diffstat (limited to 'contrib/libstdc++/src/globals.cc')
-rw-r--r-- | contrib/libstdc++/src/globals.cc | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/contrib/libstdc++/src/globals.cc b/contrib/libstdc++/src/globals.cc new file mode 100644 index 0000000..36d193f --- /dev/null +++ b/contrib/libstdc++/src/globals.cc @@ -0,0 +1,226 @@ +// Copyright (C) 2001, 2002 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +#include "bits/c++config.h" +#include "bits/gthr.h" +#include <fstream> +#include <istream> +#include <ostream> +#include <locale> +#include <ext/stdio_filebuf.h> + +// On AIX, and perhaps other systems, library initialization order is +// not guaranteed. For example, the static initializers for the main +// program might run before the static initializers for this library. +// That means that we cannot rely on static initialization in the +// library; there is no guarantee that things will get initialized in +// time. This file contains definitions of all global variables that +// require initialization as arrays of characters. + +// Because <iostream> declares the standard streams to be [io]stream +// types instead of say [io]fstream types, it is also necessary to +// allocate the actual file buffers in this file. +namespace std +{ + // Standard "C" locale. + typedef char fake_locale[sizeof(locale)] + __attribute__ ((aligned(__alignof__(locale)))); + fake_locale c_locale; + + typedef char fake_locale_Impl[sizeof(locale::_Impl)] + __attribute__ ((aligned(__alignof__(locale::_Impl)))); + fake_locale_Impl c_locale_impl; + + typedef char fake_facet_vec[sizeof(locale::facet*)] + __attribute__ ((aligned(__alignof__(locale::facet*)))); + fake_facet_vec facet_vec[_GLIBCPP_NUM_FACETS]; + + typedef char fake_ctype_c[sizeof(std::ctype<char>)] + __attribute__ ((aligned(__alignof__(std::ctype<char>)))); + fake_ctype_c ctype_c; + + typedef char fake_collate_c[sizeof(std::collate<char>)] + __attribute__ ((aligned(__alignof__(std::collate<char>)))); + fake_collate_c collate_c; + + typedef char fake_numpunct_c[sizeof(numpunct<char>)] + __attribute__ ((aligned(__alignof__(numpunct<char>)))); + fake_numpunct_c numpunct_c; + + typedef char fake_num_get_c[sizeof(num_get<char>)] + __attribute__ ((aligned(__alignof__(num_get<char>)))); + fake_num_get_c num_get_c; + + typedef char fake_num_put_c[sizeof(num_put<char>)] + __attribute__ ((aligned(__alignof__(num_put<char>)))); + fake_num_put_c num_put_c; + + typedef char fake_codecvt_c[sizeof(codecvt<char, char, mbstate_t>)] + __attribute__ ((aligned(__alignof__(codecvt<char, char, mbstate_t>)))); + fake_codecvt_c codecvt_c; + + typedef char fake_moneypunct_c[sizeof(moneypunct<char, true>)] + __attribute__ ((aligned(__alignof__(moneypunct<char, true>)))); + fake_moneypunct_c moneypunct_tc; + fake_moneypunct_c moneypunct_fc; + + typedef char fake_money_get_c[sizeof(money_get<char>)] + __attribute__ ((aligned(__alignof__(money_get<char>)))); + fake_money_get_c money_get_c; + + typedef char fake_money_put_c[sizeof(money_put<char>)] + __attribute__ ((aligned(__alignof__(money_put<char>)))); + fake_money_put_c money_put_c; + + typedef char fake_timepunct_c[sizeof(__timepunct<char>)] + __attribute__ ((aligned(__alignof__(__timepunct<char>)))); + fake_timepunct_c timepunct_c; + + typedef char fake_time_get_c[sizeof(time_get<char>)] + __attribute__ ((aligned(__alignof__(time_get<char>)))); + fake_time_get_c time_get_c; + + typedef char fake_time_put_c[sizeof(time_put<char>)] + __attribute__ ((aligned(__alignof__(time_put<char>)))); + fake_time_put_c time_put_c; + + typedef char fake_messages_c[sizeof(messages<char>)] + __attribute__ ((aligned(__alignof__(messages<char>)))); + fake_messages_c messages_c; + +#ifdef _GLIBCPP_USE_WCHAR_T + typedef char fake_wtype_w[sizeof(std::ctype<wchar_t>)] + __attribute__ ((aligned(__alignof__(std::ctype<wchar_t>)))); + fake_wtype_w ctype_w; + + typedef char fake_wollate_w[sizeof(std::collate<wchar_t>)] + __attribute__ ((aligned(__alignof__(std::collate<wchar_t>)))); + fake_wollate_w collate_w; + + typedef char fake_numpunct_w[sizeof(numpunct<wchar_t>)] + __attribute__ ((aligned(__alignof__(numpunct<wchar_t>)))); + fake_numpunct_w numpunct_w; + + typedef char fake_num_get_w[sizeof(num_get<wchar_t>)] + __attribute__ ((aligned(__alignof__(num_get<wchar_t>)))); + fake_num_get_w num_get_w; + + typedef char fake_num_put_w[sizeof(num_put<wchar_t>)] + __attribute__ ((aligned(__alignof__(num_put<wchar_t>)))); + fake_num_put_w num_put_w; + + typedef char fake_wodecvt_w[sizeof(codecvt<wchar_t, char, mbstate_t>)] + __attribute__ ((aligned(__alignof__(codecvt<wchar_t, char, mbstate_t>)))); + fake_wodecvt_w codecvt_w; + + typedef char fake_moneypunct_w[sizeof(moneypunct<wchar_t, true>)] + __attribute__ ((aligned(__alignof__(moneypunct<wchar_t, true>)))); + fake_moneypunct_w moneypunct_tw; + fake_moneypunct_w moneypunct_fw; + + typedef char fake_money_get_w[sizeof(money_get<wchar_t>)] + __attribute__ ((aligned(__alignof__(money_get<wchar_t>)))); + fake_money_get_w money_get_w; + + typedef char fake_money_put_w[sizeof(money_put<wchar_t>)] + __attribute__ ((aligned(__alignof__(money_put<wchar_t>)))); + fake_money_put_w money_put_w; + + typedef char fake_timepunct_w[sizeof(__timepunct<wchar_t>)] + __attribute__ ((aligned(__alignof__(__timepunct<wchar_t>)))); + fake_timepunct_w timepunct_w; + + typedef char fake_time_get_w[sizeof(time_get<wchar_t>)] + __attribute__ ((aligned(__alignof__(time_get<wchar_t>)))); + fake_time_get_w time_get_w; + + typedef char fake_time_put_w[sizeof(time_put<wchar_t>)] + __attribute__ ((aligned(__alignof__(time_put<wchar_t>)))); + fake_time_put_w time_put_w; + + typedef char fake_messages_w[sizeof(messages<wchar_t>)] + __attribute__ ((aligned(__alignof__(messages<wchar_t>)))); + fake_messages_w messages_w; +#endif + + // Standard stream objects. + typedef char fake_istream[sizeof(istream)] + __attribute__ ((aligned(__alignof__(istream)))); + typedef char fake_ostream[sizeof(ostream)] + __attribute__ ((aligned(__alignof__(ostream)))); + fake_istream cin; + fake_ostream cout; + fake_ostream cerr; + fake_ostream clog; + + typedef char fake_filebuf[sizeof(__gnu_cxx::stdio_filebuf<char>)] + __attribute__ ((aligned(__alignof__(__gnu_cxx::stdio_filebuf<char>)))); + fake_filebuf buf_cout; + fake_filebuf buf_cin; + fake_filebuf buf_cerr; + +#ifdef _GLIBCPP_USE_WCHAR_T + typedef char fake_wistream[sizeof(wistream)] + __attribute__ ((aligned(__alignof__(wistream)))); + typedef char fake_wostream[sizeof(wostream)] + __attribute__ ((aligned(__alignof__(wostream)))); + fake_wistream wcin; + fake_wostream wcout; + fake_wostream wcerr; + fake_wostream wclog; + + typedef char fake_wfilebuf[sizeof(__gnu_cxx::stdio_filebuf<wchar_t>)] + __attribute__ ((aligned(__alignof__(__gnu_cxx::stdio_filebuf<wchar_t>)))); + fake_wfilebuf buf_wcout; + fake_wfilebuf buf_wcin; + fake_wfilebuf buf_wcerr; +#endif + + + // Globals for once-only runtime initialization of mutex objects. This + // allows static initialization of these objects on systems that need a + // function call to initialize a mutex. For example, see stl_threads.h. +#ifdef __GTHREAD_MUTEX_INIT + // Need to provide explicit instantiations of static data for + // systems with broken weak linkage support. + template __gthread_mutex_t _Swap_lock_struct<0>::_S_swap_lock; +#elif defined(__GTHREAD_MUTEX_INIT_FUNCTION) + __gthread_once_t _GLIBCPP_once = __GTHREAD_ONCE_INIT; + __gthread_mutex_t _GLIBCPP_mutex; + __gthread_mutex_t *_GLIBCPP_mutex_address; + + // Once-only initializer function for _GLIBCPP_mutex. + void + _GLIBCPP_mutex_init () + { __GTHREAD_MUTEX_INIT_FUNCTION (&_GLIBCPP_mutex); } + + // Once-only initializer function for _GLIBCPP_mutex_address. + void + _GLIBCPP_mutex_address_init () + { __GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCPP_mutex_address); } +#endif +} |