perf/util/pmu.c

85 	/** @from_sysfs: Was the alias from sysfs or a json event? */
287 static int perf_pmu__parse_scale(struct perf_pmu *pmu, struct perf_pmu_alias *alias)
299 	scnprintf(path + len, sizeof(path) - len, "%s/events/%s.scale", pmu->name, alias->name);
317 	ret = perf_pmu__convert_scale(scale, NULL, &alias->scale);
323 static int perf_pmu__parse_unit(struct perf_pmu *pmu, struct perf_pmu_alias *alias)
334 	scnprintf(path + len, sizeof(path) - len, "%s/events/%s.unit", pmu->name, alias->name);
340 	sret = read(fd, alias->unit, UNIT_MAX_LEN);
346 	if (alias->unit[sret - 1] == '\n')
347 		alias->unit[sret - 1] = '\0';
349 		alias->unit[sret] = '\0';
354 	alias->unit[0] = '\0';
359 perf_pmu__parse_per_pkg(struct perf_pmu *pmu, struct perf_pmu_alias *alias)
368 	scnprintf(path + len, sizeof(path) - len, "%s/events/%s.per-pkg", pmu->name, alias->name);
376 	alias->per_pkg = true;
380 static int perf_pmu__parse_snapshot(struct perf_pmu *pmu, struct perf_pmu_alias *alias)
389 	scnprintf(path + len, sizeof(path) - len, "%s/events/%s.snapshot", pmu->name, alias->name);
395 	alias->snapshot = true;
400 /* Delete an alias entry. */
414 	struct perf_pmu_alias *alias, *tmp;
416 	list_for_each_entry_safe(alias, tmp, &pmu->aliases, list) {
417 		list_del(&alias->list);
418 		perf_pmu_free_alias(alias);
426 	struct perf_pmu_alias *alias;
431 	list_for_each_entry(alias, &pmu->aliases, list) {
432 		if (!strcasecmp(alias->name, name))
433 			return alias;
449 	pr_debug("alias %s differs in field '%s' ('%s' != '%s')\n",
456 static void read_alias_info(struct perf_pmu *pmu, struct perf_pmu_alias *alias)
458 	if (!alias->from_sysfs || alias->info_loaded)
464 	perf_pmu__parse_unit(pmu, alias);
465 	perf_pmu__parse_scale(pmu, alias);
466 	perf_pmu__parse_per_pkg(pmu, alias);
467 	perf_pmu__parse_snapshot(pmu, alias);
472 	struct perf_pmu_alias *alias;
482 	read_alias_info(data->pmu, data->alias);
483 	assign_str(pe->name, "desc", &data->alias->desc, pe->desc);
484 	assign_str(pe->name, "long_desc", &data->alias->long_desc, pe->long_desc);
485 	assign_str(pe->name, "topic", &data->alias->topic, pe->topic);
486 	data->alias->per_pkg = pe->perpkg;
488 		parse_events_terms__exit(&data->alias->terms);
489 		ret = parse_events_terms(&data->alias->terms, pe->event, /*input=*/NULL);
494 		ret = perf_pmu__convert_scale(pe->unit, &unit, &data->alias->scale);
496 			snprintf(data->alias->unit, sizeof(data->alias->unit), "%s", unit);
505 	struct perf_pmu_alias *alias;
524 	alias = zalloc(sizeof(*alias));
525 	if (!alias)
528 	parse_events_terms__init(&alias->terms);
529 	alias->scale = 1.0;
530 	alias->unit[0] = '\0';
531 	alias->per_pkg = perpkg;
532 	alias->snapshot = false;
533 	alias->deprecated = deprecated;
535 	ret = parse_events_terms(&alias->terms, val, val_fd);
537 		pr_err("Cannot parse alias %s: %d\n", val, ret);
538 		free(alias);
542 	alias->name = strdup(name);
543 	alias->desc = desc ? strdup(desc) : NULL;
544 	alias->long_desc = long_desc ? strdup(long_desc) :
546 	alias->topic = topic ? strdup(topic) : NULL;
547 	alias->pmu_name = pmu_name ? strdup(pmu_name) : NULL;
549 		if (perf_pmu__convert_scale(unit, (char **)&unit, &alias->scale) < 0) {
550 			perf_pmu_free_alias(alias);
553 		snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
559 			.alias = alias,
562 		alias->from_sysfs = true;
574 	list_add_tail(&alias->list, &pmu->aliases);
660 static int pmu_alias_terms(struct perf_pmu_alias *alias, int err_loc, struct list_head *terms)
666 	list_for_each_entry(term, &alias->terms.terms, list) {
838 	 * uncore alias may be from different PMU with common prefix
847 	 * Match more complex aliases where the alias name is a comma-delimited
850 	 * Example: For alias "socket,pmuname" and PMU "socketX_pmunameY", we
960 	FILE *file = perf_pmu__open_file_at(pmu, dirfd, "alias");
1415 	struct perf_pmu_alias *alias;
1436 	alias = perf_pmu__find_alias(pmu, name, /*load=*/ true);
1437 	if (alias || pmu->cpu_aliases_added)
1438 		return alias;
1445 		alias = perf_pmu__find_alias(pmu, name, /*load=*/ false);
1447 	return alias;
1452 			   struct perf_pmu_alias *alias,
1457 	read_alias_info(pmu, alias);
1463 	if (info->unit && alias->unit[0]) {
1469 	if (info->scale && alias->scale) {
1475 	if (info->snapshot && alias->snapshot) {
1482 	if (alias->unit[0])
1483 		info->unit = alias->unit;
1485 	if (alias->scale)
1486 		info->scale = alias->scale;
1488 	if (alias->snapshot)
1489 		info->snapshot = alias->snapshot;
1495  * Find alias in the terms list and replace it with the terms
1496  * defined for the alias
1503 	struct perf_pmu_alias *alias;
1518 		alias = pmu_find_alias(pmu, term);
1519 		if (!alias)
1521 		ret = pmu_alias_terms(alias, term->err_term, &term->list);
1529 		ret = check_info_data(pmu, alias, info, err, term->err_term);
1533 		if (alias->per_pkg)
1656 			  const struct perf_pmu_alias *alias, bool skip_duplicate_pmus)
1662 	int used = snprintf(buf, len, "%.*s/%s", pmu_name_len, pmu->name, alias->name);
1664 	list_for_each_entry(term, &alias->terms.terms, list) {
1701 		info.alias = NULL;
1709 				info.alias = info.name;
1737 		info.alias = NULL;