--- a/src/share/tools/hsdis/hsdis.c	Thu Oct 16 10:21:29 2014 +0200
+++ b/src/share/tools/hsdis/hsdis.c	Wed Oct 15 16:02:50 2014 +0200
@@ -307,7 +307,8 @@
                                  app_data->printf_stream,
                                  app_data->printf_callback,
                                  native_bfd,
-                                 app_data->insn_options);
+                                 /* On PowerPC we get warnings, if we pass empty options */
+                                 (caller_options == NULL) ? NULL : app_data->insn_options);
 
   /* Finish linking together the various callback blocks. */
   app_data->dinfo.application_data = (void*) app_data;
@@ -459,6 +460,9 @@
 #ifdef LIBARCH_sparcv9
   res = "sparc:v9b";
 #endif
+#ifdef LIBARCH_ppc64
+  res = "powerpc:common64";
+#endif
   if (res == NULL)
     res = "architecture not set in Makefile!";
   return res;