> Another solution would be to have two stacks. One for variable
> (auto data)
> and one for program execution (call). Beside cache effect, this
> would provide
> mostly the same performance as we get now. Just wondering if
> someone had
> toyed with this idea.
A nice thing about two stacks is that it can be a completely
userspace thing. No need to involve the kernel at all; just gcc
and friends.
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