perf buildid-cache: Move session handling into cmd_buildid_cache()

This is a preparation of fixing dso__load_kernel_sym().  It needs a
session info before calling symbol__init().

Acked-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1407825645-24586-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 2a2c78f..d91bfa6 100644 (file)
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -246,20 +246,9 @@ static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
        return true;
 }
 
-static int build_id_cache__fprintf_missing(const char *filename, bool force, FILE *fp)
+static int build_id_cache__fprintf_missing(struct perf_session *session, FILE *fp)
 {
-       struct perf_data_file file = {
-               .path  = filename,
-               .mode  = PERF_DATA_MODE_READ,
-               .force = force,
-       };
-       struct perf_session *session = perf_session__new(&file, false, NULL);
-       if (session == NULL)
-               return -1;
-
        perf_session__fprintf_dsos_buildid(session, fp, dso__missing_buildid_cache, 0);
-       perf_session__delete(session);
-
        return 0;
 }
 
@@ -303,6 +292,11 @@ int cmd_buildid_cache(int argc, const char **argv,
                   *update_name_list_str = NULL,
                   *kcore_filename;
 
+       struct perf_data_file file = {
+               .mode  = PERF_DATA_MODE_READ,
+       };
+       struct perf_session *session = NULL;
+
        const struct option buildid_cache_options[] = {
        OPT_STRING('a', "add", &add_name_list_str,
                   "file list", "file(s) to add"),
@@ -326,8 +320,17 @@ int cmd_buildid_cache(int argc, const char **argv,
        argc = parse_options(argc, argv, buildid_cache_options,
                             buildid_cache_usage, 0);
 
+       if (missing_filename) {
+               file.path = missing_filename;
+               file.force = force;
+
+               session = perf_session__new(&file, false, NULL);
+               if (session == NULL)
+                       return -1;
+       }
+
        if (symbol__init() < 0)
-               return -1;
+               goto out;
 
        setup_pager();
 
@@ -370,7 +373,7 @@ int cmd_buildid_cache(int argc, const char **argv,
        }
 
        if (missing_filename)
-               ret = build_id_cache__fprintf_missing(missing_filename, force, stdout);
+               ret = build_id_cache__fprintf_missing(session, stdout);
 
        if (update_name_list_str) {
                list = strlist__new(true, update_name_list_str);
@@ -394,5 +397,9 @@ int cmd_buildid_cache(int argc, const char **argv,
            build_id_cache__add_kcore(kcore_filename, debugdir, force))
                pr_warning("Couldn't add %s\n", kcore_filename);
 
+out:
+       if (session)
+               perf_session__delete(session);
+
        return ret;
 }