1 // SPDX-License-Identifier: GPL-2.0 2 #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 16 static 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 94 out: for (i = 0; i < nr_events; i++) 95 free(ev_name[i]); 96 free(ev_name); 97 return ret; 98 } 99 100 static 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 } 113 114 static 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, str '%s'\n", 131 event_str, ret, err.str); 132 parse_events_error__print(&err, event_str); 133 goto out; 134 } 135 136 rblist__init(&metric_events); 137 ret = test_expand_events(evlist, &metric_events); 138 out: 139 parse_events_error__exit(&err); 140 evlist__delete(evlist); 141 return ret; 142 } 143 144 static int expand_libpfm_events(void) 145 { 146 int ret; 147 struct evlist *evlist; 148 struct rblist metric_events; 149 const char event_str[] = "CYCLES"; 150 struct option opt = { 151 .value = &evlist, 152 }; 153 154 symbol_conf.event_group = true; 155 156 evlist = evlist__new(); 157 TEST_ASSERT_VAL("failed to get evlist", evlist); 158 159 ret = parse_libpfm_events_option(&opt, event_str, 0); 160 if (ret < 0) { 161 pr_debug("failed to parse libpfm event '%s', err %d\n", 162 event_str, ret); 163 goto out; 164 } 165 if (evlist__empty(evlist)) { 166 pr_debug("libpfm was not enabled\n"); 167 goto out; 168 } 169 170 rblist__init(&metric_events); 171 ret = test_expand_events(evlist, &metric_events); 172 out: 173 evlist__delete(evlist); 174 return ret; 175 } 176 177 static int expand_metric_events(void) 178 { 179 int ret; 180 struct evlist *evlist; 181 struct rblist metric_events; 182 const char metric_str[] = "CPI"; 183 const struct pmu_metrics_table *pme_test; 184 185 evlist = evlist__new(); 186 TEST_ASSERT_VAL("failed to get evlist", evlist); 187 188 rblist__init(&metric_events); 189 pme_test = find_core_metrics_table("testarch", "testcpu"); 190 ret = metricgroup__parse_groups_test(evlist, pme_test, metric_str, &metric_events); 191 if (ret < 0) { 192 pr_debug("failed to parse '%s' metric\n", metric_str); 193 goto out; 194 } 195 196 ret = test_expand_events(evlist, &metric_events); 197 198 out: 199 metricgroup__rblist_exit(&metric_events); 200 evlist__delete(evlist); 201 return ret; 202 } 203 204 static int test__expand_cgroup_events(struct test_suite *test __maybe_unused, 205 int subtest __maybe_unused) 206 { 207 int ret; 208 209 ret = expand_default_events(); 210 TEST_ASSERT_EQUAL("failed to expand default events", ret, 0); 211 212 ret = expand_group_events(); 213 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0); 214 215 ret = expand_libpfm_events(); 216 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0); 217 218 ret = expand_metric_events(); 219 TEST_ASSERT_EQUAL("failed to expand metric events", ret, 0); 220 221 return ret; 222 } 223 224 DEFINE_SUITE("Event expansion for cgroups", expand_cgroup_events); 225