util: Make m5 commands return a bool instead of calling usage.
By delegating actually calling usage() elsewhere, we can remove a dependency
from the commands themselves, and also make testing easier since we won't
exit() every time we call a command with bad arguments.
Change-Id: I6b8e2cb77ce0456b16673f10349362cc53218bba
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27565
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
15 files changed: