224 lines · c
1// SPDX-License-Identifier: GPL-2.02#include "tests.h"3#include "debug.h"4#include "evlist.h"5#include "cgroup.h"6#include "rblist.h"7#include "metricgroup.h"8#include "parse-events.h"9#include "pmu-events/pmu-events.h"10#include "pfm.h"11#include <subcmd/parse-options.h>12#include <stdio.h>13#include <stdlib.h>14#include <string.h>15 16static int test_expand_events(struct evlist *evlist,17 struct rblist *metric_events)18{19 int i, ret = TEST_FAIL;20 int nr_events;21 bool was_group_event;22 int nr_members; /* for the first evsel only */23 const char cgrp_str[] = "A,B,C";24 const char *cgrp_name[] = { "A", "B", "C" };25 int nr_cgrps = ARRAY_SIZE(cgrp_name);26 char **ev_name;27 struct evsel *evsel;28 29 TEST_ASSERT_VAL("evlist is empty", !evlist__empty(evlist));30 31 nr_events = evlist->core.nr_entries;32 ev_name = calloc(nr_events, sizeof(*ev_name));33 if (ev_name == NULL) {34 pr_debug("memory allocation failure\n");35 return TEST_FAIL;36 }37 i = 0;38 evlist__for_each_entry(evlist, evsel) {39 ev_name[i] = strdup(evsel->name);40 if (ev_name[i] == NULL) {41 pr_debug("memory allocation failure\n");42 goto out;43 }44 i++;45 }46 /* remember grouping info */47 was_group_event = evsel__is_group_event(evlist__first(evlist));48 nr_members = evlist__first(evlist)->core.nr_members;49 50 ret = evlist__expand_cgroup(evlist, cgrp_str, metric_events, false);51 if (ret < 0) {52 pr_debug("failed to expand events for cgroups\n");53 goto out;54 }55 56 ret = TEST_FAIL;57 if (evlist->core.nr_entries != nr_events * nr_cgrps) {58 pr_debug("event count doesn't match\n");59 goto out;60 }61 62 i = 0;63 evlist__for_each_entry(evlist, evsel) {64 if (!evsel__name_is(evsel, ev_name[i % nr_events])) {65 pr_debug("event name doesn't match:\n");66 pr_debug(" evsel[%d]: %s\n expected: %s\n",67 i, evsel->name, ev_name[i % nr_events]);68 goto out;69 }70 if (strcmp(evsel->cgrp->name, cgrp_name[i / nr_events])) {71 pr_debug("cgroup name doesn't match:\n");72 pr_debug(" evsel[%d]: %s\n expected: %s\n",73 i, evsel->cgrp->name, cgrp_name[i / nr_events]);74 goto out;75 }76 77 if ((i % nr_events) == 0) {78 if (evsel__is_group_event(evsel) != was_group_event) {79 pr_debug("event group doesn't match: got %s, expect %s\n",80 evsel__is_group_event(evsel) ? "true" : "false",81 was_group_event ? "true" : "false");82 goto out;83 }84 if (evsel->core.nr_members != nr_members) {85 pr_debug("event group member doesn't match: %d vs %d\n",86 evsel->core.nr_members, nr_members);87 goto out;88 }89 }90 i++;91 }92 ret = TEST_OK;93 94out: for (i = 0; i < nr_events; i++)95 free(ev_name[i]);96 free(ev_name);97 return ret;98}99 100static int expand_default_events(void)101{102 int ret;103 struct rblist metric_events;104 struct evlist *evlist = evlist__new_default();105 106 TEST_ASSERT_VAL("failed to get evlist", evlist);107 108 rblist__init(&metric_events);109 ret = test_expand_events(evlist, &metric_events);110 evlist__delete(evlist);111 return ret;112}113 114static int expand_group_events(void)115{116 int ret;117 struct evlist *evlist;118 struct rblist metric_events;119 struct parse_events_error err;120 const char event_str[] = "{cycles,instructions}";121 122 symbol_conf.event_group = true;123 124 evlist = evlist__new();125 TEST_ASSERT_VAL("failed to get evlist", evlist);126 127 parse_events_error__init(&err);128 ret = parse_events(evlist, event_str, &err);129 if (ret < 0) {130 pr_debug("failed to parse event '%s', err %d\n", event_str, ret);131 parse_events_error__print(&err, event_str);132 goto out;133 }134 135 rblist__init(&metric_events);136 ret = test_expand_events(evlist, &metric_events);137out:138 parse_events_error__exit(&err);139 evlist__delete(evlist);140 return ret;141}142 143static int expand_libpfm_events(void)144{145 int ret;146 struct evlist *evlist;147 struct rblist metric_events;148 const char event_str[] = "CYCLES";149 struct option opt = {150 .value = &evlist,151 };152 153 symbol_conf.event_group = true;154 155 evlist = evlist__new();156 TEST_ASSERT_VAL("failed to get evlist", evlist);157 158 ret = parse_libpfm_events_option(&opt, event_str, 0);159 if (ret < 0) {160 pr_debug("failed to parse libpfm event '%s', err %d\n",161 event_str, ret);162 goto out;163 }164 if (evlist__empty(evlist)) {165 pr_debug("libpfm was not enabled\n");166 goto out;167 }168 169 rblist__init(&metric_events);170 ret = test_expand_events(evlist, &metric_events);171out:172 evlist__delete(evlist);173 return ret;174}175 176static int expand_metric_events(void)177{178 int ret;179 struct evlist *evlist;180 struct rblist metric_events;181 const char metric_str[] = "CPI";182 const struct pmu_metrics_table *pme_test;183 184 evlist = evlist__new();185 TEST_ASSERT_VAL("failed to get evlist", evlist);186 187 rblist__init(&metric_events);188 pme_test = find_core_metrics_table("testarch", "testcpu");189 ret = metricgroup__parse_groups_test(evlist, pme_test, metric_str, &metric_events);190 if (ret < 0) {191 pr_debug("failed to parse '%s' metric\n", metric_str);192 goto out;193 }194 195 ret = test_expand_events(evlist, &metric_events);196 197out:198 metricgroup__rblist_exit(&metric_events);199 evlist__delete(evlist);200 return ret;201}202 203static int test__expand_cgroup_events(struct test_suite *test __maybe_unused,204 int subtest __maybe_unused)205{206 int ret;207 208 ret = expand_default_events();209 TEST_ASSERT_EQUAL("failed to expand default events", ret, 0);210 211 ret = expand_group_events();212 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0);213 214 ret = expand_libpfm_events();215 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0);216 217 ret = expand_metric_events();218 TEST_ASSERT_EQUAL("failed to expand metric events", ret, 0);219 220 return ret;221}222 223DEFINE_SUITE("Event expansion for cgroups", expand_cgroup_events);224