Small comment clarification in tapset/ia64/registers.stp.

diff --git a/tapset/ia64/registers.stp b/tapset/ia64/registers.stp
index 5e6ecb761b4bd01780ec93512d546c4c713f7ad7..9812062048c85cd035e4a2307ecedc0b60eacaae 100644 (file)
--- a/tapset/ia64/registers.stp
+++ b/tapset/ia64/registers.stp
@@ -1,6 +1,7 @@
 /*
  * Dwarfless register access for ia64. Unfortunately, getting
- * registers/arguments on the ia64 is unimplemented.
+ * registers/arguments on the ia64 is unimplemented (because it is
+ * non-trivial retrieving the arguments from the stack).
  *
  * Note that using syscall_get_arguments() (as the s390x does) doesn't
  * work on ia64.