1libperf-$(CONFIG_DWARF) += dwarf-regs.o 2 3libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o 4libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o 5 6libperf-$(CONFIG_AUXTRACE) += pmu.o 7