tools/perf/arch/arm/Makefile - third_party/linux - Git at Google

 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
 endif
 PERF_HAVE_JITDUMP := 1
	ifndef NO_DWARF
	PERF_HAVE_DWARF_REGS := 1
	endif
	PERF_HAVE_JITDUMP := 1