diff -r aae7db185576 -r a6ab7217b5cc hotspot/src/os/aix/vm/porting_aix.hpp
--- a/hotspot/src/os/aix/vm/porting_aix.hpp	Mon Jun 15 14:33:51 2015 -0700
+++ b/hotspot/src/os/aix/vm/porting_aix.hpp	Tue Jun 16 11:58:25 2015 +0200
@@ -87,7 +87,8 @@
       char* p_name, size_t namelen,    // [out] optional: user provided buffer for the function name
       int* p_displacement,             // [out] optional: displacement
       const struct tbtable** p_tb,     // [out] optional: ptr to traceback table to get further information
-      char* p_errmsg, size_t errmsglen // [out] optional: user provided buffer for error messages
+      char* p_errmsg, size_t errmsglen,// [out] optional: user provided buffer for error messages
+      bool demangle = true             // [in] whether to demangle the name
     );
 
 // -------------------------------------------------------------------------