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Message-Id: <20230502223851.2234828-35-irogers@google.com>
Date: Tue, 2 May 2023 15:38:41 -0700
From: Ian Rogers <irogers@...gle.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
Kan Liang <kan.liang@...ux.intel.com>,
Ahmad Yasin <ahmad.yasin@...el.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Stephane Eranian <eranian@...gle.com>,
Andi Kleen <ak@...ux.intel.com>,
Perry Taylor <perry.taylor@...el.com>,
Samantha Alt <samantha.alt@...el.com>,
Caleb Biggers <caleb.biggers@...el.com>,
Weilin Wang <weilin.wang@...el.com>,
Edward Baker <edward.baker@...el.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Florian Fischer <florian.fischer@...q.space>,
Rob Herring <robh@...nel.org>,
Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
John Garry <john.g.garry@...cle.com>,
Kajol Jain <kjain@...ux.ibm.com>,
Sumanth Korikkar <sumanthk@...ux.ibm.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Tiezhu Yang <yangtiezhu@...ngson.cn>,
Ravi Bangoria <ravi.bangoria@....com>,
Leo Yan <leo.yan@...aro.org>,
Yang Jihong <yangjihong1@...wei.com>,
James Clark <james.clark@....com>,
Suzuki Poulouse <suzuki.poulose@....com>,
Kang Minchul <tegongkang@...il.com>,
Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Ian Rogers <irogers@...gle.com>
Subject: [PATCH v4 34/44] perf parse-events: Avoid error when assigning a term
Avoid the parser error:
'''
$ perf stat -e 'cycles/name=name/' true
event syntax error: 'cycles/name=name/'
\___ parser error
'''
by turning the term back to a string if it is on the right. Add PMU
and generic parsing tests.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/tests/parse-events.c | 21 +++++++++++++++++++++
tools/perf/util/parse-events.c | 9 +++++++++
tools/perf/util/parse-events.h | 3 +++
tools/perf/util/parse-events.y | 8 ++++++++
4 files changed, 41 insertions(+)
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 9ca8e19bda00..eb893cc15878 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1499,6 +1499,16 @@ static int test__sym_event_dc(struct evlist *evlist)
return TEST_OK;
}
+static int test__term_equal_term(struct evlist *evlist)
+{
+ struct evsel *evsel = evlist__first(evlist);
+
+ TEST_ASSERT_VAL("wrong type", evsel->core.attr.type == PERF_TYPE_HARDWARE);
+ TEST_ASSERT_VAL("wrong config", test_config(evsel, PERF_COUNT_HW_CPU_CYCLES));
+ TEST_ASSERT_VAL("wrong name setting", strcmp(evsel->name, "name") == 0);
+ return TEST_OK;
+}
+
#ifdef HAVE_LIBTRACEEVENT
static int count_tracepoints(void)
{
@@ -1871,6 +1881,11 @@ static const struct evlist_test test__events[] = {
.check = test__exclusive_group,
/* 7 */
},
+ {
+ .name = "cycles/name=name/",
+ .check = test__term_equal_term,
+ /* 8 */
+ },
};
static const struct evlist_test test__events_pmu[] = {
@@ -2052,6 +2067,12 @@ static const struct evlist_test test__events_pmu[] = {
.check = test__exclusive_group,
/* 9 */
},
+ {
+ .name = "cpu/cycles,name=name/",
+ .valid = test__pmu_cpu_valid,
+ .check = test__term_equal_term,
+ /* 0 */
+ },
};
struct terms_test {
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index dea27bc0b376..5d5d77fa398b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2581,6 +2581,15 @@ int parse_events_term__str(struct parse_events_term **term,
return new_term(term, &temp, str, 0);
}
+int parse_events_term__term(struct parse_events_term **term,
+ int term_lhs, int term_rhs,
+ void *loc_term, void *loc_val)
+{
+ return parse_events_term__str(term, term_lhs, NULL,
+ strdup(config_term_names[term_rhs]),
+ loc_term, loc_val);
+}
+
int parse_events_term__clone(struct parse_events_term **new,
struct parse_events_term *term)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 7fe80b416143..2a8cafe0ee8f 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -148,6 +148,9 @@ int parse_events_term__num(struct parse_events_term **term,
int parse_events_term__str(struct parse_events_term **term,
int type_term, char *config, char *str,
void *loc_term, void *loc_val);
+int parse_events_term__term(struct parse_events_term **term,
+ int term_lhs, int term_rhs,
+ void *loc_term, void *loc_val);
int parse_events_term__clone(struct parse_events_term **new,
struct parse_events_term *term);
void parse_events_term__delete(struct parse_events_term *term);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 819a5123fd77..0aaebc57748e 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -848,6 +848,14 @@ PE_TERM '=' PE_TERM_HW
$$ = term;
}
|
+PE_TERM '=' PE_TERM
+{
+ struct parse_events_term *term;
+
+ ABORT_ON(parse_events_term__term(&term, (int)$1, (int)$3, &@1, &@3));
+ $$ = term;
+}
+|
PE_TERM '=' PE_VALUE
{
struct parse_events_term *term;
--
2.40.1.495.gc816e09b53d-goog
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