CFLAGS_REMOVE_return_address.o = -pg
-obj-y := debugtraps.o dma-nommu.o dumpstack.o \
+obj-y := clkdev.o debugtraps.o dma-nommu.o dumpstack.o \
idle.o io.o io_generic.o irq.o \
irq_$(BITS).o machvec.o nmi_debug.o process.o \
process_$(BITS).o ptrace_$(BITS).o \