Changed my mind about __cxa_uncaught_exception and added it.

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@148754 91177308-0d34-0410-b5e6-96231b3b80d8

src/cxa_exception.cpp

@@ -505,6 +505,15 @@ __cxa_rethrow_primary_exception(void* thrown_object)
     // If we return client will call terminate()
 }
 
+bool
+__cxa_uncaught_exception() throw()
+{
+    __cxa_eh_globals* globals = __cxa_get_globals_fast();
+    if (globals == 0)
+        return false;
+    return globals->uncaughtExceptions != 0;
+}
+
 }  // extern "C"
 
 }  // abi

www/spec.html

@@ -354,8 +354,9 @@
 </p>
 </blockquote>
 </td>
-<td colspan="3">I don't think we want to do this.  <tt>__cxa_get_globals()</tt>
-is already exported and has this information.</td>
+<td>&#10003;</td>
+<td>&#10003;</td>
+<td>&#10003;</td>
 </tr>
 
 <tr>