1ifndef NO_DWARF 2PERF_HAVE_DWARF_REGS := 1 3LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o 4endif 5ifndef NO_LIBUNWIND 6LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libunwind.o 7endif 8