1 files changed, 47 insertions, 0 deletions
diff --git a/libstdc++-v3/src/c++98/ios_failure.cc b/libstdc++-v3/src/c++98/ios_failure.cc
index 3ba25f81279..e7f35e21e2c 100644
--- a/libstdc++-v3/src/c++98/ios_failure.cc
+++ b/libstdc++-v3/src/c++98/ios_failure.cc
@@ -29,6 +29,18 @@
 #define _GLIBCXX_USE_CXX11_ABI 0
 #include <ios>
 
+#if _GLIBCXX_USE_DUAL_ABI && __cpp_rtti
+#include <cxxabi.h>
+#include <typeinfo>
+#endif
+
+#ifdef _GLIBCXX_USE_NLS
+# include <libintl.h>
+# define _(msgid)   gettext (msgid)
+#else
+# define _(msgid)   (msgid)
+#endif
+
 namespace std _GLIBCXX_VISIBILITY(default)
 {
 _GLIBCXX_BEGIN_NAMESPACE_VERSION
@@ -43,5 +55,40 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   ios_base::failure::what() const throw()
   { return _M_msg.c_str(); }
 
+#if _GLIBCXX_USE_DUAL_ABI
+  // When the dual ABI is enabled __throw_ios_failure() is defined in
+  // src/c++11/cxx11-ios_failure.cc
+#if __cpp_rtti
+  // If RTTI is enabled the exception type thrown will use these functions to
+  // construct/destroy a gcc4-compatible ios::failure object in a buffer,
+  // and to catch that object via a handler of the gcc4-compatible type.
+  void
+  __construct_ios_failure(void* buf, const char* msg)
+  { ::new(buf) ios_base::failure(msg); }
+
+  void
+  __destroy_ios_failure(void* buf)
+  { static_cast<ios_base::failure*>(buf)->~failure(); }
+
+  bool
+  __is_ios_failure_handler(const __cxxabiv1::__class_type_info* type)
+  { return *type == typeid(ios::failure); }
+
+  namespace {
+  // C++98-style static assertions to ensure ios::failure fits in a buffer
+  // with the same size and alignment as runtime_error:
+  typedef char S[1 / (sizeof(ios::failure) <= sizeof(runtime_error))];
+  typedef char A[1 / (__alignof(ios::failure) <= __alignof(runtime_error))];
+  }
+#endif // __cpp_rtti
+
+#else // ! _GLIBCXX_USE_DUAL_ABI
+
+  void
+  __throw_ios_failure(const char* __s __attribute__((unused)))
+  { _GLIBCXX_THROW_OR_ABORT(ios::failure(_(__s))); }
+
+#endif
+
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace