K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2018-05-10T20:10:02.865374Z
K 7
svn:log
V 507
Error out on attempt to link amd64 kernel with old binutils linker

As of r333461 we require ifunc support to link a working amd64 kernel.
The default in-tree bootstrap linker is lld and it has the required
support, as does any modern out-of-tree binutils linker.  The in-tree
GNU ld is from binutils 2.17.50 and it does not have ifunc support,
so produce an error rather than a broken kernel.

Reviewed by:	kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D15378

END