Some binutils versions will drag in an object to satisfy the entry
symbol; some won't. Try to cope with this exciting variety of
behaviour by ensuring that all entry symbols are unique.
Remove the explicit inclusion of the prefix object on the linker
command line, since the entry symbol now provides all the information
needed to identify the prefix.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
New strategy: always stop both base code and UNDI. Always free base code
memory (unless we get an error while stopping the base code). Leave UNDI
resident (though stopped) for .kpxe.
Still need to add code to record the device identification parameters
prior to stopping UNDI.
Michael Brown