simpleperf: add --exclude-perf option in record cmd.

Bug: 148970587
Test: run simpleperf_unit_test.
Change-Id: Ie6d869124f645c589eef06c6543aa0276836415c

1 files changed, 20 insertions, 0 deletions

diff --git a/simpleperf/cmd_record_test.cpp b/simpleperf/cmd_record_test.cpp
index 207ec64c..f4ed1d87 100644
--- a/simpleperf/cmd_record_test.cpp
+++ b/simpleperf/cmd_record_test.cpp
@@ -1019,3 +1019,23 @@ TEST(record_cmd, pmu_event_option) {
   }
   TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-e", event_string})));
 }
+
+TEST(record_cmd, exclude_perf_option) {
+  ASSERT_TRUE(RunRecordCmd({"--exclude-perf"}));
+  if (IsRoot()) {
+    TemporaryFile tmpfile;
+    ASSERT_TRUE(RecordCmd()->Run(
+        {"-a", "--exclude-perf", "--duration", "1", "-e", GetDefaultEvent(), "-o", tmpfile.path}));
+    std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
+    ASSERT_TRUE(reader);
+    pid_t perf_pid = getpid();
+    ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
+      if (r->type() == PERF_RECORD_SAMPLE) {
+        if (static_cast<SampleRecord*>(r.get())->tid_data.pid == perf_pid) {
+          return false;
+        }
+      }
+      return true;
+    }));
+  }
+}
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