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linux-yocto/tools/perf/tests/attr/test-record-dummy-C0
Yang Jihong a132b784db perf test: Fix test-record-dummy-C0 failure for supported PERF_FORMAT_LOST feature kernel 
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>
2023-09-16 22:36:36 -07:00

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[config] command = record args = --no-bpf-event -e dummy -C 0 kill >/dev/null 2>&1 ret = 1

[event] fd=1 group_fd=-1 cpu=0 pid=-1 flags=8 type=1 size=136 config=9 sample_period=4000

PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_TIME |

PERF_SAMPLE_PERIOD

+ PERF_SAMPLE_CPU added by -C 0

sample_type=391 read_format=4|20 disabled=0 inherit=1 pinned=0 exclusive=0 exclude_user=0 exclude_kernel=0 exclude_hv=0 exclude_idle=0 mmap=1 comm=1 freq=1 inherit_stat=0 enable_on_exec=0 task=1 watermark=0 precise_ip=0 mmap_data=0 sample_id_all=1 exclude_host=0 exclude_guest=1 exclude_callchain_kernel=0 exclude_callchain_user=0 mmap2=1 comm_exec=1 context_switch=0 write_backward=0 namespaces=0 use_clockid=0 wakeup_events=0 bp_type=0 config1=0 config2=0 branch_sample_type=0 sample_regs_user=0 sample_stack_user=0