obj-y += vsyscall.o vsyscall-syscall.o
  
  $(obj)/vsyscall-syscall.o: \
  	$(foreach F,trapa,$(obj)/vsyscall-$F.so)
  
  # Teach kbuild about targets
  targets += $(foreach F,trapa,vsyscall-$F.o vsyscall-$F.so)
  targets += vsyscall-note.o vsyscall.lds
  
  # The DSO images are built using a special linker script
  quiet_cmd_syscall = SYSCALL $@
        cmd_syscall = $(CC) -nostdlib $(SYSCFLAGS_$(@F)) \
  			   -Wl,-T,$(filter-out FORCE,$^) -o $@
  
  export CPPFLAGS_vsyscall.lds += -P -C -Ush
  
  vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \

  		$(call cc-ldoption, -Wl$(comma)--hash-style=sysv)

  
  SYSCFLAGS_vsyscall-trapa.so	= $(vsyscall-flags)
  
  $(obj)/vsyscall-trapa.so: \
  $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
  	$(call if_changed,syscall)
  
  # We also create a special relocatable object that should mirror the symbol
  # table and layout of the linked DSO.  With ld -R we can then refer to
  # these symbols in the kernel code rather than hand-coded addresses.
  extra-y += vsyscall-syms.o
  $(obj)/built-in.o: $(obj)/vsyscall-syms.o
  $(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
  
  SYSCFLAGS_vsyscall-syms.o = -r
  $(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \
  			$(obj)/vsyscall-trapa.o $(obj)/vsyscall-note.o FORCE
  	$(call if_changed,syscall)