[PATCH 2/4] perf tools: relate 'start' & 'end' to perf_session

[Chenggang Qin]

Copy the value to start and end to struct perf_session.

Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Yanmin Zhang <yanmin.zhang@xxxxxxxxx>
Cc: Wu Fengguang <fengguang.wu@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Chenggang Qin <chenggang.qcg@xxxxxxxxxx>

---
 tools/perf/builtin-report.c |    5 +++++
 tools/perf/util/session.c   |    3 +++
 tools/perf/util/session.h   |    2 ++
 3 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index e9e9d0a..d3c1c8a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -889,6 +889,11 @@ repeat:
 	if (session == NULL)
 		return -ENOMEM;
 
+	if (tstart)
+		session->tstart = tstart * 1e6;
+	if (tend)
+		session->tend = tend * 1e6;
+
 	report.session = session;
 
 	has_br_stack = perf_header__has_feat(&session->header,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 568b750..193bb6a 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -134,6 +134,9 @@ struct perf_session *perf_session__new(const char *filename, int mode,
 	INIT_LIST_HEAD(&self->ordered_samples.to_free);
 	machines__init(&self->machines);
 
+	self->tstart = 0;
+	self->tend = ULLONG_MAX;
+
 	if (mode == O_RDONLY) {
 		if (perf_session__open(self, force) < 0)
 			goto out_delete;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 04bf737..c9a6c27 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -37,6 +37,8 @@ struct perf_session {
 	int			fd;
 	bool			fd_pipe;
 	bool			repipe;
+	u64			tstart;
+	u64			tend;
 	struct ordered_samples	ordered_samples;
 	char			filename[1];
 };
-- 
1.7.8.rc2.5.g815b

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