subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
-obj-$(CONFIG_PERF_EVENTS) += callchain.o
+obj-$(CONFIG_PERF_EVENTS) += callchain.o perf_regs.o
obj-$(CONFIG_PPC_PERF_CTRS) += core-book3s.o bhrb.o
obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \