[PATCH 25/25] perf tools: Have the process properly sythesized in subsequent data files

[Jiri Olsa <jolsa@redhat.com>]

Change the target so the sythesizing routine would think
it needs to synthesized whole process, because there's no
exec COMM event for subsequent data files.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
---
 tools/perf/builtin-record.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index b0c5937..0dbf9a3 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -516,6 +516,8 @@ static int multi_file_finish(struct perf_record *rec)
 static int multi_file_init(struct perf_record *rec)
 {
 	struct perf_data_file *file = rec->file;
+	struct perf_record_opts *opts = &rec->opts;
+	static bool target_change;
 	int err;
 
 	if (multi_file_name(rec->file, rec->multi_idx++))
@@ -529,6 +531,15 @@ static int multi_file_init(struct perf_record *rec)
 	if (err)
 		goto out_close;
 
+	/*
+	 * XXX HACK - Make the target looks like we have pid
+	 * so we get the process fully synthetised.
+	 */
+	if (perf_target__none(&opts->target) && !target_change) {
+		target_change = true;
+		opts->target.pid = "multi";
+	}
+
 	err = synthesize_record_file(rec);
 	if (err)
 		goto out_close;
-- 
1.7.11.7