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perf list: Avoid a hardcoded cpu PMU name

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Use the first core PMU instead.

On a Raspberry Pi, before:

  $ perf list
  ...
    cpu/t1=v1[,t2=v2,t3 ...]/modifier                  [Raw hardware event descriptor]
         [(see 'man perf-list' on how to encode it)]
  ...

After:

  $ perf list
  ...
    armv8_cortex_a72/t1=v1[,t2=v2,t3 ...]/modifier     [Raw hardware event descriptor]
         [(see 'man perf-list' on how to encode it)]
  ...
  ```

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kang Minchul <tegongkang@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230906234416.3472339-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2023-09-06 16:44:15 -07:00 • committed by Arnaldo Carvalho de Melo
parent e44b47b931
commit 4f19fc1839
1 changed files with 17 additions and 11 deletions
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28
tools/perf/util/print-events.c
View file

@ -395,6 +395,8 @@ void print_symbol_events(const struct print_callbacks *print_cb, void *print_sta
*/
void print_events(const struct print_callbacks *print_cb, void *print_state)
{
char *tmp;
print_symbol_events(print_cb, print_state, PERF_TYPE_HARDWARE,
event_symbols_hw, PERF_COUNT_HW_MAX);
print_symbol_events(print_cb, print_state, PERF_TYPE_SOFTWARE,
@ -418,17 +420,21 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
/*long_desc=*/NULL,
/*encoding_desc=*/NULL);
print_cb->print_event(print_state,
/*topic=*/NULL,
/*pmu_name=*/NULL,
"cpu/t1=v1[,t2=v2,t3 ...]/modifier",
/*event_alias=*/NULL,
/*scale_unit=*/NULL,
/*deprecated=*/false,
event_type_descriptors[PERF_TYPE_RAW],
"(see 'man perf-list' on how to encode it)",
/*long_desc=*/NULL,
/*encoding_desc=*/NULL);
if (asprintf(&tmp, "%s/t1=v1[,t2=v2,t3 ...]/modifier",
perf_pmus__scan_core(/*pmu=*/NULL)->name) > 0) {
print_cb->print_event(print_state,
/*topic=*/NULL,
/*pmu_name=*/NULL,
tmp,
/*event_alias=*/NULL,
/*scale_unit=*/NULL,
/*deprecated=*/false,
event_type_descriptors[PERF_TYPE_RAW],
"(see 'man perf-list' on how to encode it)",
/*long_desc=*/NULL,
/*encoding_desc=*/NULL);
free(tmp);
}
print_cb->print_event(print_state,
/*topic=*/NULL,