hg: jdk9/sandbox/hotspot: Somewhat hacky: make it compile (but not fully link) on FreeBSD.

[magnus.ihse.bursie at oracle.com]

Changeset: 29deb57d82d2
Author:    ihse
Date:      2015-10-25 23:15 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/29deb57d82d2

Somewhat hacky: make it compile (but not fully link) on FreeBSD.

! make/bsd/makefiles/gcc.make
! make/bsd/makefiles/vm.make
! src/cpu/x86/vm/sharedRuntime_x86_64.cpp
! src/os/bsd/vm/osThread_bsd.cpp
! src/os/bsd/vm/os_bsd.cpp
! src/share/vm/utilities/decoder.cpp
! src/share/vm/utilities/decoder_elf.cpp