These don't need to exist, and the specifics of their stub implementations were upsetting clang. Change-Id: Ib38a39c5cfbc2e1647cfb6ed14c660e10df2b1c3 Reviewed-on: https://gem5-review.googlesource.com/c/13878 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>