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perf tools: Add aux-output config term

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Expose the aux_output attribute flag to the user to configure, by adding a
config term 'aux-output'. For events that support it, selection of
'aux-output' causes the generation of AUX records instead of event records.
This requires that an AUX area event is also provided.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190806084606.4021-7-alexander.shishkin@linux.intel.com
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-08-06 11:46:05 +03:00 committed by Arnaldo Carvalho de Melo
parent 9e64cefe43
commit 1b9921546a
6 changed files with 17 additions and 0 deletions
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2
tools/perf/Documentation/perf-record.txt
View File

@ -60,6 +60,8 @@ OPTIONS
- 'name' : User defined event name. Single quotes (') may be used to
escape symbols in the name from parsing by shell and tool
like this: name=\'CPU_CLK_UNHALTED.THREAD:cmask=0x1\'.
- 'aux-output': Generate AUX records instead of events. This requires
that an AUX area event is also provided.
See the linkperf:perf-list[1] man page for more parameters.

3
tools/perf/util/evsel.c
View File

@ -833,6 +833,9 @@ static void apply_config_terms(struct evsel *evsel,
break;
case PERF_EVSEL__CONFIG_TERM_PERCORE:
break;
case PERF_EVSEL__CONFIG_TERM_AUX_OUTPUT:
attr->aux_output = term->val.aux_output ? 1 : 0;
break;
default:
break;
}

2
tools/perf/util/evsel.h
View File

@ -52,6 +52,7 @@ enum term_type {
PERF_EVSEL__CONFIG_TERM_DRV_CFG,
PERF_EVSEL__CONFIG_TERM_BRANCH,
PERF_EVSEL__CONFIG_TERM_PERCORE,
PERF_EVSEL__CONFIG_TERM_AUX_OUTPUT,
};
struct perf_evsel_config_term {
@ -70,6 +71,7 @@ struct perf_evsel_config_term {
char *branch;
unsigned long max_events;
bool percore;
bool aux_output;
} val;
bool weak;
};

8
tools/perf/util/parse-events.c
View File

@ -963,6 +963,7 @@ static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
[PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
[PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config",
[PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
[PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
};
static bool config_term_shrinked;
@ -1083,6 +1084,9 @@ do { \
return -EINVAL;
}
break;
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
CHECK_TYPE_VAL(NUM);
break;
default:
err->str = strdup("unknown term");
err->idx = term->err_term;
@ -1133,6 +1137,7 @@ static int config_term_tracepoint(struct perf_event_attr *attr,
case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
return config_term_common(attr, term, err);
default:
if (err) {
@ -1225,6 +1230,9 @@ do { \
ADD_CONFIG_TERM(PERCORE, percore,
term->val.num ? true : false);
break;
case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
ADD_CONFIG_TERM(AUX_OUTPUT, aux_output, term->val.num ? 1 : 0);
break;
default:
break;
}

1
tools/perf/util/parse-events.h
View File

@ -76,6 +76,7 @@ enum {
PARSE_EVENTS__TERM_TYPE_OVERWRITE,
PARSE_EVENTS__TERM_TYPE_DRV_CFG,
PARSE_EVENTS__TERM_TYPE_PERCORE,
PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT,
__PARSE_EVENTS__TERM_TYPE_NR,
};

1
tools/perf/util/parse-events.l
View File

@ -284,6 +284,7 @@ no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
percore { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
aux-output { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
, { return ','; }
"/" { BEGIN(INITIAL); return '/'; }
{name_minus} { return str(yyscanner, PE_NAME); }