perf inject: Move session handling out of __cmd_inject()

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

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@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/1407825645-24586-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index ee875cc..18eaefd 100644 (file)
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -23,6 +23,7 @@
 
 struct perf_inject {
        struct perf_tool        tool;
+       struct perf_session     *session;
        bool                    build_ids;
        bool                    sched_stat;
        const char              *input_name;
@@ -340,12 +341,8 @@ static int perf_evsel__check_stype(struct perf_evsel *evsel,
 
 static int __cmd_inject(struct perf_inject *inject)
 {
-       struct perf_session *session;
        int ret = -EINVAL;
-       struct perf_data_file file = {
-               .path = inject->input_name,
-               .mode = PERF_DATA_MODE_READ,
-       };
+       struct perf_session *session = inject->session;
        struct perf_data_file *file_out = &inject->output;
 
        signal(SIGINT, sig_handler);
@@ -357,10 +354,6 @@ static int __cmd_inject(struct perf_inject *inject)
                inject->tool.tracing_data = perf_event__repipe_tracing_data;
        }
 
-       session = perf_session__new(&file, true, &inject->tool);
-       if (session == NULL)
-               return -ENOMEM;
-
        if (inject->build_ids) {
                inject->tool.sample = perf_event__inject_buildid;
        } else if (inject->sched_stat) {
@@ -396,8 +389,6 @@ static int __cmd_inject(struct perf_inject *inject)
                perf_session__write_header(session, session->evlist, file_out->fd, true);
        }
 
-       perf_session__delete(session);
-
        return ret;
 }
 
@@ -427,6 +418,11 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
                        .mode = PERF_DATA_MODE_WRITE,
                },
        };
+       struct perf_data_file file = {
+               .mode = PERF_DATA_MODE_READ,
+       };
+       int ret;
+
        const struct option options[] = {
                OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
                            "Inject build-ids into the output stream"),
@@ -461,8 +457,17 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
                return -1;
        }
 
+       file.path = inject.input_name;
+       inject.session = perf_session__new(&file, true, &inject.tool);
+       if (inject.session == NULL)
+               return -ENOMEM;
+
        if (symbol__init() < 0)
                return -1;
 
-       return __cmd_inject(&inject);
+       ret = __cmd_inject(&inject);
+
+       perf_session__delete(inject.session);
+
+       return ret;
 }