Instead, create a new tool called EnvDefaults. This tool now needs
to be explicitly listed in the set of tools available through an
Environment, but that's easy to do in on place (all environments should
stem from main). Hijacking default like we were doing was (as far as I
can tell) not how that tool was intended to be used, and doing things
this way is a bit less hacky.
Also, we can split more Builders, etc, out of SConstruct, and these will
need to attach to main in the same way. We're going to need a list of
tools when main is constructed one way or the other, so we might as well
follow the rules.
Change-Id: I392e1639cb69d373c64970dccf45258000498cc3
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40965
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
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