[PATCH v1] perf trace: Enable ignore_missing_thread for trace

[Gang Li]

perf already support ignore_missing_thread for -u/-p, but not yet
applied to `perf trace`. This patch enable ignore_missing_thread
for `perf trace`.

ref:
Link: http://lkml.kernel.org/r/1481538943-21874-6-git-send-email-jolsa@xxxxxxxxxx
Link: http://lkml.kernel.org/r/1513148513-6974-1-git-send-email-zhangmengting@xxxxxxxxxx
Signed-off-by: Gang Li <ligang.bdlg@xxxxxxxxxxxxx>
---
 tools/perf/builtin-trace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0b52e08e558e..94d62a92f1a1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -3950,6 +3950,9 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 		evlist__add(evlist, pgfault_min);
 	}
 
+	/* Enable ignoring missing threads when -u/-p option is defined. */
+	trace->opts.ignore_missing_thread = trace->opts.target.uid != UINT_MAX || trace->opts.target.pid;
+
 	if (trace->sched &&
 	    evlist__add_newtp(evlist, "sched", "sched_stat_runtime", trace__sched_stat_runtime))
 		goto out_error_sched_stat_runtime;
-- 
2.20.1