globals.cc: Clarify comments, remove c_locale_imp_compat.

2003-03-04  Benjamin Kosnik  <bkoz@redhat.com>

	* src/globals.cc: Clarify comments, remove c_locale_imp_compat.

	* config/linker-map.gnu: Filter typeinfo and vtable info.

From-SVN: r63826

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 67fbed7e2747b175ae5e043a48e5973fcd6997f9..a16e62ce002e0e17d512f60831a6ee566c99ee25 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2003-03-04  Benjamin Kosnik  <bkoz@redhat.com>
+
+       * src/globals.cc: Clarify comments, remove c_locale_imp_compat.
+
+       * config/linker-map.gnu: Filter typeinfo and vtable info.
+
 2003-03-04  Jerry Quinn  <jlquinn@optonline.net>
 
        * src/ios.cc (ios_base::_M_grow_words): Don't delete _M_word on

diff --git a/libstdc++-v3/config/linker-map.gnu b/libstdc++-v3/config/linker-map.gnu
index b1405e30ce83ba241c2d042a472d0b62bfeb64fd..5011619c53a1fef0c4c0f78767c870b778a2248b 100644 (file)
--- a/libstdc++-v3/config/linker-map.gnu
+++ b/libstdc++-v3/config/linker-map.gnu
@@ -130,12 +130,48 @@ GLIBCPP_3.4 {
     _ZdaPvRKSt9nothrow_t;
 
     # vtable
-    _ZTV*;
-    _ZTT*;
+    _ZTVN9__gnu_cxx*;
+    _ZTVNSt8ios_base7failureE;
+    _ZTVNSt6locale5facetE;
+    _ZTVS[a-z];
+    _ZTVSt[0-9][A-Za-z]*;
+    _ZTVSt[0-9][0-9][A-Za-z]*;
+    _ZTVSt11__timepunctI[cw]E;
+    _ZTVSt23__codecvt_abstract_baseI[cw]c11__mbstate_tE;
+    _ZTVSt21__ctype_abstract_baseI[cw]E;
+
+    _ZTTS[a-z];
+    _ZTTSt[0-9][A-Za-z]*;
+    _ZTTSt[0-9][0-9][A-Za-z]*;
 
     # typeinfo
-    _ZTI*;
-    _ZTS*;
+    _ZTI[a-z];
+    _ZTINSt8ios_base7failureE;
+    _ZTINSt6locale5facetE;
+    _ZTIN9__gnu_cxx*;
+    _ZTIP[a-z];
+    _ZTIPK[a-z];
+    _ZTIS[a-z];
+    _ZTISt[0-9][A-Za-z]*;
+    _ZTISt[0-9][0-9][A-Za-z]*;
+    _ZTISt11__timepunctI[cw]E;
+    _ZTISt10__num_base;
+    _ZTISt21__ctype_abstract_baseI[cw]E;
+    _ZTISt23__codecvt_abstract_baseI[cw]c11__mbstate_tE;
+
+    _ZTS[a-z];
+    _ZTSNSt8ios_base7failureE;
+    _ZTSNSt6locale5facetE;
+    _ZTSN9__gnu_cxx*;
+    _ZTSP[a-z];
+    _ZTSPK[a-z];
+    _ZTSS[a-z];
+    _ZTSSt[0-9][A-Za-z]*;
+    _ZTSSt[0-9][0-9][A-Za-z]*;
+    _ZTSSt11__timepunctI[cw]E;
+    _ZTSSt10__num_base;
+    _ZTSSt21__ctype_abstract_baseI[cw]E;
+    _ZTSSt23__codecvt_abstract_baseI[cw]c11__mbstate_tE;
 
     # function-scope static objects requires a guard variable.
     _ZGV*;
@@ -225,6 +261,13 @@ CXXABI_1.3 {
     # __gnu_cxx::_verbose_terminate_handler()
     _ZN9__gnu_cxx27__verbose_terminate_handlerEv;
 
+    # typeinfo
+    _ZTIN10__cxxabi*;
+    _ZTSN10__cxxabi*;
+
+    # vtable
+    _ZTVN10__cxxabi*;
+
   local:
     *;
 };

diff --git a/libstdc++-v3/src/globals.cc b/libstdc++-v3/src/globals.cc
index 7d4949c51888014a0ed12bdf01fb521c114e25c6..0f8dfefbd0b409260ad2485603b5ad42d1cb1767 100644 (file)
--- a/libstdc++-v3/src/globals.cc
+++ b/libstdc++-v3/src/globals.cc
@@ -41,13 +41,60 @@
 // 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.
+// NB: asm directives can rename these non-exported, namespace
+// __gnu_cxx symbols into exported, namespace std symbols with the
+// appropriate symbol version name.
+// The rename syntax is 
+//   asm (".symver currentname,oldname@@GLIBCPP_3.2")
+// In macro form:
+// _GLIBCPP_ASM_SYMVER(currentname, oldname, GLIBCPP_3.2)
+
+namespace std
+{
+  // Standard stream objects.
+  // NB: Iff <iostream> is included, these definitions become wonky.
+  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;
+
+#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;
+#endif
+} // namespace std
+
 namespace __gnu_cxx
 {
   using namespace std;
 
+  // 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.
+  typedef char fake_filebuf[sizeof(stdio_filebuf<char>)]
+  __attribute__ ((aligned(__alignof__(stdio_filebuf<char>))));
+  fake_filebuf buf_cout;
+  fake_filebuf buf_cin;
+  fake_filebuf buf_cerr;
+
+#ifdef _GLIBCPP_USE_WCHAR_T
+  typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)]
+  __attribute__ ((aligned(__alignof__(stdio_filebuf<wchar_t>))));
+  fake_wfilebuf buf_wcout;
+  fake_wfilebuf buf_wcin;
+  fake_wfilebuf buf_wcerr;
+#endif
+
   typedef char fake_facet_name[sizeof(char*)]
   __attribute__ ((aligned(__alignof__(char*))));
   fake_facet_name facet_name[6 + _GLIBCPP_NUM_CATEGORIES];
@@ -56,27 +103,10 @@ namespace __gnu_cxx
   __attribute__ ((aligned(__alignof__(locale::_Impl))));
   fake_locale_Impl c_locale_impl;
 
-
-  // NB: The asm directives renames these non-exported, namespace
-  // __gnu_cxx symbols into the mistakenly exported, namespace std
-  // symbols in GLIBCPP_3.2.
-  // The rename syntax is 
-  //   asm (".symver currentname,oldname@@GLIBCPP_3.2")
-  // At the same time, these new __gnu_cxx symbols are not exported.
-  // In the future, GLIBCXX_ABI > 5 should remove all uses of
-  // _GLIBCPP_ASM_SYMVER in this file.
   typedef char fake_locale[sizeof(locale)]
   __attribute__ ((aligned(__alignof__(locale))));
   fake_locale c_locale;
 
-  // GLIBCXX_ABI > 5 will not need this symbol at all.
-  // It's here just as a placeholder, as the size of this exported
-  // object changed. The new symbol is not exported.
-  const int o = sizeof(locale::_Impl) - sizeof(char*[_GLIBCPP_NUM_CATEGORIES]);
-  typedef char fake_locale_Impl_compat[o]
-  __attribute__ ((aligned(__alignof__(o))));
-  fake_locale_Impl_compat  c_locale_impl_compat;
-
   typedef char fake_facet_vec[sizeof(locale::facet*)]
   __attribute__ ((aligned(__alignof__(locale::facet*))));
   fake_facet_vec facet_vec[_GLIBCPP_NUM_FACETS];
@@ -189,20 +219,6 @@ namespace __gnu_cxx
   fake_messages_w messages_w;
 #endif
 
-  typedef char fake_filebuf[sizeof(stdio_filebuf<char>)]
-  __attribute__ ((aligned(__alignof__(stdio_filebuf<char>))));
-  fake_filebuf buf_cout;
-  fake_filebuf buf_cin;
-  fake_filebuf buf_cerr;
-
-#ifdef _GLIBCPP_USE_WCHAR_T
-  typedef char fake_wfilebuf[sizeof(stdio_filebuf<wchar_t>)]
-  __attribute__ ((aligned(__alignof__(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.
@@ -226,27 +242,3 @@ namespace __gnu_cxx
   { __GTHREAD_MUTEX_INIT_FUNCTION (_GLIBCPP_mutex_address); }
 #endif
 } // namespace __gnu_cxx
-
-namespace std
-{
-  // 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;
-
-#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;
-#endif
-} // namespace std