No. The symbols seen by modules are those explicitly exported from
the kernel via the get_kernel_syms or query_module system calls.
Yes, there is or has been a hacked version of insmod floating about
that would use System.map used by, I think, the old dosemu module,
but that is Not Right wrt other things such as the GPL and very
nearly invoked the righteous wrath of our fearless leader.
r~