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According to the lxrun (Linux Emulator for SCO)
documentation and the Debian ibcs2/svr3 emulator package, OpenServer 5 is SVR3
(with extension for symbolic links and a few other goodies.)
SCO documentation backs up the SVR3 lineage
for OSR5, and verifies that UnixWare 2 and 7 are SVR4 and SVR5,
respectively.
The SVR3 heritage would explain why a few test
programs that I wrote performing simple system calls (exec, fork, chdir, etc)
fail under the SVR4 emulator, because they're trying to execute syscall 40 which
is undefined in SVR4 -- but refers to the xenix call gate under
ibcs2/svr3.
If this is indeed the case, the ibcs2 code will
need to modified to support ELF executables so that SCO OpenServer 5 binaries
can be run under the ibcs2/svr3 emulator, with appropriate changes being made to
allow the SCO extensions.
--
Matthew Emmerton GSI Computer Services +1 (800) 217-5409 (Canada) |
