K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-04-07T12:57:50.758668Z
K 7
svn:log
V 358
stand: -fno-common fixes for !x86 loaders

- beriloader: archsw is declared extern and defined elsewhere
- ofwloader: ofw_elf{,64} are defined in elf_freebsd.c and
  ppc64_elf_freebsd.c respectively
- ubldr: syscall_ptr is defined in start.S for whichever ubldr platform is
  building

-fno-common will become the default in GCC10/LLVM11.

MFC after:	3 days

END