linux/tools/perf/tests/attr/base-record
Thomas Richter 30df88a80f perf test: Fix wrong size expectation for 'Setup struct perf_event_attr'
The test case "perf test 'Setup struct perf_event_attr'" is failing.

On s390 this output is observed:

 # ./perf test -Fvvvv 17
 17: Setup struct perf_event_attr                                    :
 --- start ---
 running './tests/attr/test-stat-C0'
 Using CPUID IBM,8561,703,T01,3.6,002f
 .....
 Event event:base-stat
      fd = 1
      group_fd = -1
      flags = 0|8
      cpu = *
      type = 0
      size = 128     <<<--- wrong, specified in file base-stat
      config = 0
      sample_period = 0
      sample_type = 65536
      ...
 'PERF_TEST_ATTR=/tmp/tmpgw574wvg ./perf stat -o \
	/tmp/tmpgw574wvg/perf.data -e cycles -C 0 kill >/dev/null \
	2>&1 ret '1', expected '1'
  loading result events
    Event event-0-0-4
      fd = 4
      group_fd = -1
      cpu = 0
      pid = -1
      flags = 8
      type = 0
      size = 136     <<<--- actual size used in system call
      .....
  compare
    matching [event-0-0-4]
      to [event:base-stat]
      [cpu] 0 *
      [flags] 8 0|8
      [type] 0 0
      [size] 136 128
    ->FAIL
    match: [event-0-0-4] matches []
  expected size=136, got 128
  FAILED './tests/attr/test-stat-C0' - match failure

This mismatch is caused by
commit 09519ec3b1 ("perf: Add perf_event_attr::config3")
which enlarges the structure perf_event_attr by 8 bytes.

Fix this by adjusting the expected value of size.

Output after:
 # ./perf test -Fvvvv 17
 17: Setup struct perf_event_attr                                    :
 --- start ---
 running './tests/attr/test-stat-C0'
 Using CPUID IBM,8561,703,T01,3.6,002f
 ...
  matched
  compare
    matching [event-0-0-4]
      to [event:base-stat]
      [cpu] 0 *
      [flags] 8 0|8
      [type] 0 0
      [size] 136 136
      ....
   ->OK
   match: [event-0-0-4] matches ['event:base-stat']
 matched

Fixes: 09519ec3b1 ("perf: Add perf_event_attr::config3")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230322094731.1768281-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-04 09:39:55 -03:00

42 lines
570 B
Plaintext

[event]
fd=1
group_fd=-1
# 0 or PERF_FLAG_FD_CLOEXEC flag
flags=0|8
cpu=*
type=0|1
size=136
config=0
sample_period=*
sample_type=263
read_format=0|4|20
disabled=1
inherit=1
pinned=0
exclusive=0
exclude_user=0
exclude_kernel=0|1
exclude_hv=0|1
exclude_idle=0
mmap=1
comm=1
freq=1
inherit_stat=0
enable_on_exec=1
task=1
watermark=0
precise_ip=0|1|2|3
mmap_data=0
sample_id_all=1
exclude_host=0|1
exclude_guest=0|1
exclude_callchain_kernel=0
exclude_callchain_user=0
wakeup_events=0
bp_type=0
config1=0
config2=0
branch_sample_type=0
sample_regs_user=0
sample_stack_user=0