tools/perf/arch/powerpc/util/Build - kernel/common - Git at Google

 libperf-y += header.o
 libperf-y += sym-handling.o
 libperf-y += kvm-stat.o
 libperf-y += perf_regs.o

 libperf-$(CONFIG_DWARF) += dwarf-regs.o
 libperf-$(CONFIG_DWARF) += skip-callchain-idx.o
 libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o
	libperf-y += header.o
	libperf-y += sym-handling.o
	libperf-y += kvm-stat.o
	libperf-y += perf_regs.o

	libperf-$(CONFIG_DWARF) += dwarf-regs.o
	libperf-$(CONFIG_DWARF) += skip-callchain-idx.o
	libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o