perf tools: Add vdso__new()

This is preparation for adding support for compat VDSOs.

Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406035081-14301-48-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 15 insertions, 5 deletions

diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c
index fdaccaf67371..946d927765c6 100644
--- a/tools/perf/util/vdso.c
+++ b/tools/perf/util/vdso.c
@@ -121,6 +121,20 @@ void vdso__exit(struct machine *machine)
         zfree(&machine->vdso_info);
 }
 
+static struct dso *vdso__new(struct machine *machine, const char *short_name,
+                             const char *long_name)
+{
+        struct dso *dso;
+
+        dso = dso__new(short_name);
+        if (dso != NULL) {
+                dsos__add(&machine->user_dsos, dso);
+                dso__set_long_name(dso, long_name, false);
+        }
+
+        return dso;
+}
+
 struct dso *vdso__dso_findnew(struct machine *machine)
 {
         struct vdso_info *vdso_info;
@@ -141,11 +155,7 @@ struct dso *vdso__dso_findnew(struct machine *machine)
                 if (!file)
                         return NULL;
 
-                dso = dso__new(VDSO__MAP_NAME);
-                if (dso != NULL) {
-                        dsos__add(&machine->user_dsos, dso);
-                        dso__set_long_name(dso, file, false);
-                }
+                dso = vdso__new(machine, VDSO__MAP_NAME, file);
         }
 
         return dso;