More constification.


git-svn-id: svn://svn.valgrind.org/vex/trunk@3040 8f6e269a-dfd6-0310-a8e1-e2731360e62c
diff --git a/priv/guest_x86_defs.h b/priv/guest_x86_defs.h
index dd03056..e3c2ecc 100644
--- a/priv/guest_x86_defs.h
+++ b/priv/guest_x86_defs.h
@@ -58,8 +58,8 @@
                          Long         delta,
                          Addr64       guest_IP,
                          VexArch      guest_arch,
-                         VexArchInfo* archinfo,
-                         VexAbiInfo*  abiinfo,
+                         const VexArchInfo* archinfo,
+                         const VexAbiInfo*  abiinfo,
                          VexEndness   host_endness,
                          Bool         sigill_diag );