perf parse-events: Improve location for add pmu

Improve the location for add PMU for cases when PMUs aren't found.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.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: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230627181030.95608-13-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/parse-events.c

@@ -1575,13 +1575,14 @@ static bool config_term_percore(struct list_head *config_terms)
 int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config,
-			 bool auto_merge_stats)
+			 bool auto_merge_stats, void *loc_)
 {
 	struct perf_event_attr attr;
 	struct perf_pmu_info info;
 	struct perf_pmu *pmu;
 	struct evsel *evsel;
 	struct parse_events_error *err = parse_state->error;
+	YYLTYPE *loc = loc_;
 	LIST_HEAD(config_terms);
 
 	pmu = parse_state->fake_pmu ?: perf_pmus__find(name);
@@ -1605,7 +1606,7 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
 		if (asprintf(&err_str,
 				"Cannot find PMU `%s'. Missing kernel support?",
 				name) >= 0)
-			parse_events_error__handle(err, 0, err_str, NULL);
+			parse_events_error__handle(err, loc->first_column, err_str, NULL);
 		return -EINVAL;
 	}
 	if (head_config)
@@ -1691,12 +1692,13 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,
 
 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 			       char *str, struct list_head *head,
-			       struct list_head **listp)
+			       struct list_head **listp, void *loc_)
 {
 	struct parse_events_term *term;
 	struct list_head *list = NULL;
 	struct list_head *orig_head = NULL;
 	struct perf_pmu *pmu = NULL;
+	YYLTYPE *loc = loc_;
 	int ok = 0;
 	char *config;
 
@@ -1743,7 +1745,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 				parse_events_copy_term_list(head, &orig_head);
 				if (!parse_events_add_pmu(parse_state, list,
 							  pmu->name, orig_head,
-							  auto_merge_stats)) {
+							  auto_merge_stats, loc)) {
 					pr_debug("%s -> %s/%s/\n", str,
 						 pmu->name, alias->str);
 					parse_state->wild_card_pmus = true;
@@ -1756,7 +1758,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 
 	if (parse_state->fake_pmu) {
 		if (!parse_events_add_pmu(parse_state, list, str, head,
-					  /*auto_merge_stats=*/true)) {
+					  /*auto_merge_stats=*/true, loc)) {
 			pr_debug("%s -> %s/%s/\n", str, "fake_pmu", str);
 			ok++;
 		}

tools/perf/util/parse-events.h

@@ -202,7 +202,7 @@ int parse_events_add_breakpoint(struct parse_events_state *parse_state,
 int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config,
-			 bool auto_merge_stats);
+			bool auto_merge_stats, void *loc);
 
 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
 				      const char *name, const char *metric_id,
@@ -211,7 +211,7 @@ struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 			       char *str,
 			       struct list_head *head_config,
-			       struct list_head **listp);
+			       struct list_head **listp, void *loc);
 
 int parse_events_copy_term_list(struct list_head *old,
 				 struct list_head **new);

tools/perf/util/parse-events.y

@@ -313,7 +313,7 @@ PE_NAME opt_pmu_config
 		YYNOMEM;
 	}
 	/* Attempt to add to list assuming $1 is a PMU name. */
-	if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false)) {
+	if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false, &@1)) {
 		struct perf_pmu *pmu = NULL;
 		int ok = 0;
 
@@ -341,7 +341,7 @@ PE_NAME opt_pmu_config
 					YYNOMEM;
 				}
 				if (!parse_events_add_pmu(parse_state, list, pmu->name, terms,
-							  auto_merge_stats)) {
+							  auto_merge_stats, &@1)) {
 					ok++;
 					parse_state->wild_card_pmus = true;
 				}
@@ -352,7 +352,7 @@ PE_NAME opt_pmu_config
 		if (!ok) {
 			/* Failure to add, assume $1 is an event name. */
 			zfree(&list);
-			ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list);
+			ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list, &@1);
 			$2 = NULL;
 		}
 		if (!ok) {
@@ -379,7 +379,7 @@ PE_NAME sep_dc
 	struct list_head *list;
 	int err;
 
-	err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
+	err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list, &@1);
 	if (err < 0) {
 		struct parse_events_state *parse_state = _parse_state;
 		struct parse_events_error *error = parse_state->error;