re PR libstdc++/5625 ([mips] exception unwinding creates invalid pointer on mips)

PR libstdc++/5625
* libsuspc++/eh_personality.cc (PERSONALITY_FUNCTION): Use
__builtin_extend_pointer.

From-SVN: r77555

libstdc++-v3/ChangeLog

+2004-02-09  James E Wilson  <wilson@specifixinc.com>
+
+	PR libstdc++/5625
+	* libsuspc++/eh_personality.cc (PERSONALITY_FUNCTION): Use
+	__builtin_extend_pointer.
+
 2004-02-09  Paolo Carlini  <pcarlini@suse.de>
 
 	PR libstdc++/14072

libstdc++-v3/libsupc++/eh_personality.cc

@@ -443,8 +443,10 @@ PERSONALITY_FUNCTION (int version,
 	}
     }
 
+  /* For targets with pointers smaller than the word size, we must extend the
+     pointer, and this extension is target dependent.  */
   _Unwind_SetGR (context, __builtin_eh_return_data_regno (0),
-		 (_Unwind_Ptr) &xh->unwindHeader);
+		 __builtin_extend_pointer (&xh->unwindHeader));
   _Unwind_SetGR (context, __builtin_eh_return_data_regno (1),
 		 handler_switch_value);
   _Unwind_SetIP (context, landing_pad);