prepare_access    725 tools/perf/util/unwind-libunwind-local.c 	.prepare_access = _unwind__prepare_access,
prepare_access     65 tools/perf/util/unwind-libunwind.c 	err = mg->unwind_libunwind_ops->prepare_access(mg);
prepare_access     23 tools/perf/util/unwind.h 	int (*prepare_access)(struct map_groups *mg);