perf test: Fix test-record-dummy-C0 failure for supported PERF_FORMAT_LOST feature...

For kernel that supports PERF_FORMAT_LOST, attr->read_format has
PERF_FORMAT_LOST bit. Update expected value of
attr->read_format of test-record-dummy-C0 for this scenario.

Before:

  # ./perf test 17 -vv
   17: Setup struct perf_event_attr                                    :
  --- start ---
  test child forked, pid 1609441
  <SNIP>
  running './tests/attr/test-record-dummy-C0'
    'PERF_TEST_ATTR=/tmp/tmpm3s60aji ./perf record -o /tmp/tmpm3s60aji/perf.data --no-bpf-event -e dummy -C 0 kill >/dev/null 2>&1' ret '1', expected '1'
  expected read_format=4, got 20
  FAILED './tests/attr/test-record-dummy-C0' - match failure
  test child finished with -1
  ---- end ----
  Setup struct perf_event_attr: FAILED!

After:

  # ./perf test 17 -vv
   17: Setup struct perf_event_attr                                    :
  --- start ---
  test child forked, pid 1609441
  <SNIP>
  running './tests/attr/test-record-dummy-C0'
    'PERF_TEST_ATTR=/tmp/tmppa9vxcb7 ./perf record -o /tmp/tmppa9vxcb7/perf.data --no-bpf-event -e dummy -C 0 kill >/dev/null 2>&1' ret '1', expected '1'
  <SNIP>
  test child finished with 0
  ---- end ----
  Setup struct perf_event_attr: Ok

Reported-and-Tested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20230916091641.776031-1-yangjihong1@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

diff --git a/tools/perf/tests/attr/test-record-dummy-C0 b/tools/perf/tests/attr/test-record-dummy-C0
index 83ca4e373acd0a9fb095caf3e9dcdb54c310626b..576ec48b3aafaa6a783e3e58f3ecd72cc927521b 100644 (file)
--- a/tools/perf/tests/attr/test-record-dummy-C0
+++ b/tools/perf/tests/attr/test-record-dummy-C0
@@ -17,7 +17,7 @@ sample_period=4000
 # PERF_SAMPLE_PERIOD
 # + PERF_SAMPLE_CPU added by -C 0
 sample_type=391
-read_format=4
+read_format=4|20
 disabled=0
 inherit=1
 pinned=0