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