1libperf-y += header.o 2libperf-y += tsc.o 3libperf-y += kvm-stat.o 4 5libperf-$(CONFIG_DWARF) += dwarf-regs.o 6 7libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o 8libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o 9