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Date: Sun, 19 Apr 2015 22:12:05 -0700
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Subject: Clearing sbss/bss at bootup
From: Justin Hibbits <jrh29@alumni.cwru.edu>
To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>
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Been looking at bootup issues on the e500, and many of the issues I
see are caused by static variables not being initialized to 0 early
enough.  The code doesn't bzero() the bss/sbss until pretty late in
bootup.  Is there a reason why that is?  Why can't the bss be cleared
immediately?  Do loaders pass in data at addresses that may overlap
the bss?

- Justin