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authorIan Rogers <irogers@google.com>2023-09-01 16:39:44 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-09-02 08:12:15 -0300
commit9ea150a8d073c2f2987d7e9ea4c35856449c9cb2 (patch)
tree99d6db8374463af7d5166be2d9608b3746cce673
parent64199ae4b8a36038dd5b69904a29bd48ef11ca8b (diff)
perf parse-events: Fixes relating to no_value terms
A term may have no value in which case it is assumed to have a value of 1. It doesn't just apply to alias/event terms so change the parse_events_term__to_strbuf assert. Commit 99e7138eb7897aa0 ("perf tools: Fail on using multiple bits long terms without value") made it so that no_value terms could only be for a single bit. Prior to commit 64199ae4b8a3 ("perf parse-events: Fix propagation of term's no_value when cloning") this missed a test case where config1 had no_value. Fixes: 64199ae4b8a36038 ("perf parse-events: Fix propagation of term's no_value when cloning") Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230901233949.2930562-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/tests/parse-events.c2
-rw-r--r--tools/perf/util/parse-events.c2
-rw-r--r--tools/perf/util/parse-events.h4
3 files changed, 4 insertions, 4 deletions
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index d86076d575ed..d47f1f871164 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -2170,7 +2170,7 @@ static const struct evlist_test test__events[] = {
static const struct evlist_test test__events_pmu[] = {
{
- .name = "cpu/config=10,config1,config2=3,period=1000/u",
+ .name = "cpu/config=10,config1=1,config2=3,period=1000/u",
.valid = test__pmu_cpu_valid,
.check = test__checkevent_pmu,
/* 0 */
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 68fe2c4ff49f..65608a3cba81 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2607,7 +2607,7 @@ int parse_events_term__to_strbuf(struct list_head *term_list, struct strbuf *sb)
if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
if (term->no_value) {
- assert(term->type_term == PARSE_EVENTS__TERM_TYPE_USER);
+ assert(term->val.num == 1);
ret = strbuf_addf(sb, "%s", term->config);
} else
ret = strbuf_addf(sb, "%s=%#"PRIx64, term->config, term->val.num);
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 855b0725c5d4..594e5d2dc67f 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -124,8 +124,8 @@ struct parse_events_term {
*/
bool weak;
/**
- * @no_value: Is there no value. TODO: this should really be part of
- * type_val.
+ * @no_value: Is there no value. If a numeric term has no value then the
+ * value is assumed to be 1. An event name also has no value.
*/
bool no_value;
};