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Message-Id: <20190806084606.4021-7-alexander.shishkin@linux.intel.com>
Date: Tue, 6 Aug 2019 11:46:05 +0300
From: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>,
Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
kan.liang@...ux.intel.com, Adrian Hunter <adrian.hunter@...el.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: [PATCH v6 6/7] perf tools: Add aux-output config term
From: Adrian Hunter <adrian.hunter@...el.com>
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@...el.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
---
tools/perf/Documentation/perf-record.txt | 2 ++
tools/perf/util/evsel.c | 3 +++
tools/perf/util/evsel.h | 2 ++
tools/perf/util/parse-events.c | 8 ++++++++
tools/perf/util/parse-events.h | 1 +
tools/perf/util/parse-events.l | 1 +
6 files changed, 17 insertions(+)
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 15e0fa87241b..566050066c77 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -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.
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 9ec8782d3226..b872089f3974 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -832,6 +832,9 @@ static void apply_config_terms(struct perf_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;
}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index cad54e8ba522..e7b2f506e939 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -51,6 +51,7 @@ 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 {
@@ -69,6 +70,7 @@ struct perf_evsel_config_term {
char *branch;
unsigned long max_events;
bool percore;
+ bool aux_output;
} val;
bool weak;
};
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 371ff3aee769..78af7f4dd782 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -952,6 +952,7 @@ 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;
@@ -1072,6 +1073,9 @@ 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;
@@ -1122,6 +1126,7 @@ 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) {
@@ -1214,6 +1219,9 @@ 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;
}
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index f7139e1a2fd3..b09eeb498fbc 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -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,
};
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index ca6098874fe2..7469497cd28e 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -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); }
--
2.20.1
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