Anyone investigated reviving undump for the platforms where the 
supporting code already exists: elf and coff on i386, besides a.out and 
solaris?

For example take it from emacs or some scheme packages,
or even parrot. These support even more platforms.
Tom Christianses once added unexec from emacs to perl as I read in perl.c.

It would need a little bit of restructuring the undump code though which 
only went the solaris way together with the external undump utility, if 
I remember correctly.
-- 
Reini Urban
http://phpwiki.org/  http://murbreak.at/