11584 ::xcall would be useful
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>

*** 20,35 ****
  #
  #
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright 2016 Joyent, Inc.
  
  MODULE = unix.so
  MDBTGT = kvm
  
! MODSRCS = unix.c i86mmu.c
  MODASMSRCS = unix_sup.s
  
  include ../../../../../Makefile.cmd
  include ../../../../../Makefile.cmd.64
  include ../../../../intel/Makefile.amd64
--- 20,35 ----
  #
  #
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright 2018 Joyent, Inc.
  
  MODULE = unix.so
  MDBTGT = kvm
  
! MODSRCS = unix.c i86mmu.c xcall.c
  MODASMSRCS = unix_sup.s
  
  include ../../../../../Makefile.cmd
  include ../../../../../Makefile.cmd.64
  include ../../../../intel/Makefile.amd64