8319165: hsdis binutils: warns on empty string as option string

Reviewed-by: mli, jwilhelm, aph

Author: robehn

src/utils/hsdis/binutils/hsdis-binutils.c

@@ -336,8 +336,9 @@ static void setup_app_data(struct hsdis_app_data* app_data,
                                  app_data->printf_stream,
                                  app_data->printf_callback,
                                  native_bfd,
-                                 /* On PowerPC we get warnings, if we pass empty options */
-                                 (caller_options == NULL) ? NULL : app_data->insn_options);
+                                 /* On some archs we get warnings, if we pass empty options */
+                                 ((caller_options == NULL) || (app_data->insn_options[0] == '\0'))
+                                   ? NULL : app_data->insn_options);
 
   /* Finish linking together the various callback blocks. */
   app_data->dinfo.application_data = (void*) app_data;