perf tools: Factorize the map helpers

Factorize the dso mapping helpers into a single purpose common file
"util/map.c"

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Brice Goglin <Brice.Goglin@inria.fr>

1 files changed, 30 insertions, 0 deletions

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 91e2fe589f27..d26dc887ce52 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -1,4 +1,8 @@
+#ifndef __PERF_EVENT_H
+#define __PERF_EVENT_H
 #include "../perf.h"
+#include "util.h"
+#include <linux/list.h>
 
 struct ip_event {
         struct perf_event_header header;
@@ -52,3 +56,29 @@ typedef union event_union {
         struct lost_event               lost;
         struct read_event               read;
 } event_t;
+
+struct map {
+        struct list_head        node;
+        u64                     start;
+        u64                     end;
+        u64                     pgoff;
+        u64                     (*map_ip)(struct map *, u64);
+        struct dso              *dso;
+};
+
+static inline u64 map__map_ip(struct map *map, u64 ip)
+{
+        return ip - map->start + map->pgoff;
+}
+
+static inline u64 vdso__map_ip(struct map *map __used, u64 ip)
+{
+        return ip;
+}
+
+struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen);
+struct map *map__clone(struct map *self);
+int map__overlap(struct map *l, struct map *r);
+size_t map__fprintf(struct map *self, FILE *fp);
+
+#endif