[ECOS] an incompatibility between redboot/decompress.c v1.7, redboot/main.c v1.36, redboot/net/net_io.c v1.31 and ASSERT in a ROM build

["Stephen Goadhouse" <stephen dot goadhouse at adiengineering dot com>]

I recently performed an update of my eCos/RedBoot tree and got
redboot/decompress.c v1.7, redboot/main.c v1.36 and redboot/net/net_io.c
v1.31 along with 3 other files (the tree was originally downloaded on
9/4/02).  I built a RAM based version of RedBoot with assertions enabled
(CYGPKG_INFRA_DEBUG set to 1) and it worked just fine.  However, yesterday,
I built a ROM version with assertions enabled and RedBoot failed to properly
operate.  I traced the crash to when cyg_hal_invoke_constructors() is called
from vectors.S.  Sometime during this operation, RedBoot crashes and spits
out a GDB string.  After several experiments, I disabled assertions and it
worked fine!  However, I need assertions for some of my testing.

So I added the new files one-by-one to discover the culprit.  I narrowed it
down to the three files mentioned above.  I even tried decompress.c v1.6 and
main.c v1.35 and RedBoot still crashes.  I have to revert decompress.c to
v1.5, main.c to v1.34 and net_io.c to v1.30 before the ROM version of
RedBoot operates with assertions enabled.  It's very puzzling since those
files have minor changes that I don't see how they could cause this.

I'm working with a port I did to the 80200 XScale based BRH board.  The port
is based on the IQ80310.  I'm curious to see if a ROM version of the latest
RedBoot for the IQ80310 works with asserts enabled.  I'd guess it will crash
the same as it does for me.

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_/  Stephen Goadhouse                 Work: (434) 978-2888 x6 _/
_/  Staff Engineer       stephen.goadhouse@adiengineering.com _/
_/  ADI Engineering             http://www.adiengineering.com _/
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