diff options
| -rw-r--r-- | tools/perf/util/pmu.c | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 8139a1f3ed39..55f4de6442e3 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -701,6 +701,46 @@ struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu) return map; } +static bool pmu_uncore_alias_match(const char *pmu_name, const char *name) +{ + char *tmp = NULL, *tok, *str; + bool res; + + str = strdup(pmu_name); + if (!str) + return false; + + /* + * uncore alias may be from different PMU with common prefix + */ + tok = strtok_r(str, ",", &tmp); + if (strncmp(pmu_name, tok, strlen(tok))) { + res = false; + goto out; + } + + /* + * Match more complex aliases where the alias name is a comma-delimited + * list of tokens, orderly contained in the matching PMU name. + * + * Example: For alias "socket,pmuname" and PMU "socketX_pmunameY", we + * match "socket" in "socketX_pmunameY" and then "pmuname" in + * "pmunameY". + */ + for (; tok; name += strlen(tok), tok = strtok_r(NULL, ",", &tmp)) { + name = strstr(name, tok); + if (!name) { + res = false; + goto out; + } + } + + res = true; +out: + free(str); + return res; +} + /* * From the pmu_events_map, find the table of PMU events that corresponds * to the current running CPU. Then, add all PMU events from that table @@ -731,12 +771,8 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu) break; } - /* - * uncore alias may be from different PMU - * with common prefix - */ if (pmu_is_uncore(name) && - !strncmp(pname, name, strlen(pname))) + pmu_uncore_alias_match(pname, name)) goto new_alias; if (strcmp(pname, name)) |