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 (strcmp(evsel->name, 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 ret = parse_events(evlist, event_str, &err); 128 if (ret < 0) { 129 pr_debug("failed to parse event '%s', err %d, str '%s'\n", 130 event_str, ret, err.str); 131 parse_events_print_error(&err, event_str); 132 goto out; 133 } 134 135 rblist__init(&metric_events); 136 ret = test_expand_events(evlist, &metric_events); 137 out: 138 evlist__delete(evlist); 139 return ret; 140 } 141 142 static int expand_libpfm_events(void) 143 { 144 int ret; 145 struct evlist *evlist; 146 struct rblist metric_events; 147 const char event_str[] = "CYCLES"; 148 struct option opt = { 149 .value = &evlist, 150 }; 151 152 symbol_conf.event_group = true; 153 154 evlist = evlist__new(); 155 TEST_ASSERT_VAL("failed to get evlist", evlist); 156 157 ret = parse_libpfm_events_option(&opt, event_str, 0); 158 if (ret < 0) { 159 pr_debug("failed to parse libpfm event '%s', err %d\n", 160 event_str, ret); 161 goto out; 162 } 163 if (evlist__empty(evlist)) { 164 pr_debug("libpfm was not enabled\n"); 165 goto out; 166 } 167 168 rblist__init(&metric_events); 169 ret = test_expand_events(evlist, &metric_events); 170 out: 171 evlist__delete(evlist); 172 return ret; 173 } 174 175 static int expand_metric_events(void) 176 { 177 int ret; 178 struct evlist *evlist; 179 struct rblist metric_events; 180 const char metric_str[] = "CPI"; 181 182 struct pmu_event pme_test[] = { 183 { 184 .metric_expr = "instructions / cycles", 185 .metric_name = "IPC", 186 }, 187 { 188 .metric_expr = "1 / IPC", 189 .metric_name = "CPI", 190 }, 191 { 192 .metric_expr = NULL, 193 .metric_name = NULL, 194 }, 195 }; 196 struct pmu_events_map ev_map = { 197 .cpuid = "test", 198 .version = "1", 199 .type = "core", 200 .table = pme_test, 201 }; 202 203 evlist = evlist__new(); 204 TEST_ASSERT_VAL("failed to get evlist", evlist); 205 206 rblist__init(&metric_events); 207 ret = metricgroup__parse_groups_test(evlist, &ev_map, metric_str, 208 false, false, &metric_events); 209 if (ret < 0) { 210 pr_debug("failed to parse '%s' metric\n", metric_str); 211 goto out; 212 } 213 214 ret = test_expand_events(evlist, &metric_events); 215 216 out: 217 metricgroup__rblist_exit(&metric_events); 218 evlist__delete(evlist); 219 return ret; 220 } 221 222 int test__expand_cgroup_events(struct test *test __maybe_unused, 223 int subtest __maybe_unused) 224 { 225 int ret; 226 227 ret = expand_default_events(); 228 TEST_ASSERT_EQUAL("failed to expand default events", ret, 0); 229 230 ret = expand_group_events(); 231 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0); 232 233 ret = expand_libpfm_events(); 234 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0); 235 236 ret = expand_metric_events(); 237 TEST_ASSERT_EQUAL("failed to expand metric events", ret, 0); 238 239 return ret; 240 } 241