diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index fee663a..543c452 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -51,83 +51,6 @@
 	char		*path;
 };
 
-struct map {
-	struct list_head node;
-	u64	 start;
-	u64	 end;
-	u64	 pgoff;
-	u64	 (*map_ip)(struct map *, u64);
-	struct dso	 *dso;
-};
-
-static u64 map__map_ip(struct map *map, u64 ip)
-{
-	return ip - map->start + map->pgoff;
-}
-
-static u64 vdso__map_ip(struct map *map __used, u64 ip)
-{
-	return ip;
-}
-
-static struct map *map__new(struct mmap_event *event)
-{
-	struct map *self = malloc(sizeof(*self));
-
-	if (self != NULL) {
-		const char *filename = event->filename;
-
-		self->start = event->start;
-		self->end   = event->start + event->len;
-		self->pgoff = event->pgoff;
-
-		self->dso = dsos__findnew(filename);
-		if (self->dso == NULL)
-			goto out_delete;
-
-		if (self->dso == vdso)
-			self->map_ip = vdso__map_ip;
-		else
-			self->map_ip = map__map_ip;
-	}
-	return self;
-out_delete:
-	free(self);
-	return NULL;
-}
-
-static struct map *map__clone(struct map *self)
-{
-	struct map *map = malloc(sizeof(*self));
-
-	if (!map)
-		return NULL;
-
-	memcpy(map, self, sizeof(*self));
-
-	return map;
-}
-
-static int map__overlap(struct map *l, struct map *r)
-{
-	if (l->start > r->start) {
-		struct map *t = l;
-		l = r;
-		r = t;
-	}
-
-	if (l->end > r->start)
-		return 1;
-
-	return 0;
-}
-
-static size_t map__fprintf(struct map *self, FILE *fp)
-{
-	return fprintf(fp, " %Lx-%Lx %Lx %s\n",
-		       self->start, self->end, self->pgoff, self->dso->name);
-}
-
 
 struct thread {
 	struct rb_node	 rb_node;
@@ -797,7 +720,7 @@
 process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
 {
 	struct thread *thread = threads__findnew(event->mmap.pid);
-	struct map *map = map__new(&event->mmap);
+	struct map *map = map__new(&event->mmap, NULL, 0);
 
 	dprintf("%p [%p]: PERF_EVENT_MMAP %d: [%p(%p) @ %p]: %s\n",
 		(void *)(offset + head),