> This would be most useful for the libkvm routines, especially as
> relative to things like lkm/loadmod and
> ps/uptime/w/vmstat/dkstat/iostat.

A better approach is to make the ddb symbols available to libkvm so
that it doesn't have to read the kernel.

Currently, if a kernel isn't built with ddb, the symbols passed in by
the boot loader are discarded; under this model, they would be kept
and marked pageable (since the kernel won't be referring to them if
ddb isn't present).

Simply having the system be able to look for /netbsd in different
places doesn't solve as many problems, e.g. if boot off a
boot/rootdisk combo and want to run "dmesg".