perf tools: Factor out the map initialization

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256927305-4628-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

3 files changed, 23 insertions, 19 deletions

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 3064a05f0f52..4a158a01bb97 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -105,6 +105,8 @@ struct symbol;
 
 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
 
+void map__init(struct map *self, u64 start, u64 end, u64 pgoff,
+               struct dso *dso);
 struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
                      unsigned int sym_priv_size);
 struct map *map__clone(struct map *self);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index d302e513e062..3b7ce1bf9f8e 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -20,6 +20,18 @@ static int strcommon(const char *pathname, char *cwd, int cwdlen)
         return n;
 }
 
+void map__init(struct map *self, u64 start, u64 end, u64 pgoff,
+               struct dso *dso)
+{
+        self->start    = start;
+        self->end      = end;
+        self->pgoff    = pgoff;
+        self->dso      = dso;
+        self->map_ip   = map__map_ip;
+        self->unmap_ip = map__unmap_ip;
+        RB_CLEAR_NODE(&self->rb_node);
+}
+
 struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
                      unsigned int sym_priv_size)
 {
@@ -28,6 +40,7 @@ struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
         if (self != NULL) {
                 const char *filename = event->filename;
                 char newfilename[PATH_MAX];
+                struct dso *dso;
                 int anon;
 
                 if (cwd) {
@@ -47,20 +60,15 @@ struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
                         filename = newfilename;
                 }
 
-                self->start = event->start;
-                self->end   = event->start + event->len;
-                self->pgoff = event->pgoff;
-
-                self->dso = dsos__findnew(filename, sym_priv_size);
-                if (self->dso == NULL)
+                dso = dsos__findnew(filename, sym_priv_size);
+                if (dso == NULL)
                         goto out_delete;
 
+                map__init(self, event->start, event->start + event->len,
+                          event->pgoff, dso);
+
                 if (self->dso == vdso || anon)
                         self->map_ip = self->unmap_ip = identity__map_ip;
-                else {
-                        self->map_ip = map__map_ip;
-                        self->unmap_ip = map__unmap_ip;
-                }
         }
         return self;
 out_delete:
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 0273d83f728f..13677b5dbe5e 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1132,18 +1132,12 @@ static struct map *map__new2(u64 start, struct dso *dso)
         struct map *self = malloc(sizeof(*self));
 
         if (self != NULL) {
-                self->start = start;
                 /*
-                 * Will be filled after we load all the symbols
+                 * ->end will be filled after we load all the symbols
                  */
-                self->end = 0;
-
-                self->pgoff = 0;
-                self->dso = dso;
-                self->map_ip = map__map_ip;
-                self->unmap_ip = map__unmap_ip;
-                RB_CLEAR_NODE(&self->rb_node);
+                map__init(self, start, 0, 0, dso);
         }
+
         return self;
 }