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 "target.h" 12 #include <subcmd/parse-options.h> 13 #include <stdio.h> 14 #include <stdlib.h> 15 #include <string.h> 16 17 static int test_expand_events(struct evlist *evlist) 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, 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 target target = {}; 104 struct evlist *evlist = evlist__new_default(&target, /*sample_callchains=*/false); 105 106 TEST_ASSERT_VAL("failed to get evlist", evlist); 107 108 ret = test_expand_events(evlist); 109 evlist__delete(evlist); 110 return ret; 111 } 112 113 static int expand_group_events(void) 114 { 115 int ret; 116 struct evlist *evlist; 117 struct parse_events_error err; 118 const char event_str[] = "{cycles,instructions}"; 119 120 symbol_conf.event_group = true; 121 122 evlist = evlist__new(); 123 TEST_ASSERT_VAL("failed to get evlist", evlist); 124 125 parse_events_error__init(&err); 126 ret = parse_events(evlist, event_str, &err); 127 if (ret < 0) { 128 pr_debug("failed to parse event '%s', err %d\n", event_str, ret); 129 parse_events_error__print(&err, event_str); 130 goto out; 131 } 132 133 ret = test_expand_events(evlist); 134 out: 135 parse_events_error__exit(&err); 136 evlist__delete(evlist); 137 return ret; 138 } 139 140 static int expand_libpfm_events(void) 141 { 142 int ret; 143 struct evlist *evlist; 144 const char event_str[] = "CYCLES"; 145 struct option opt = { 146 .value = &evlist, 147 }; 148 149 symbol_conf.event_group = true; 150 151 evlist = evlist__new(); 152 TEST_ASSERT_VAL("failed to get evlist", evlist); 153 154 ret = parse_libpfm_events_option(&opt, event_str, 0); 155 if (ret < 0) { 156 pr_debug("failed to parse libpfm event '%s', err %d\n", 157 event_str, ret); 158 goto out; 159 } 160 if (evlist__empty(evlist)) { 161 pr_debug("libpfm was not enabled\n"); 162 goto out; 163 } 164 165 ret = test_expand_events(evlist); 166 out: 167 evlist__delete(evlist); 168 return ret; 169 } 170 171 static int expand_metric_events(void) 172 { 173 int ret; 174 struct evlist *evlist; 175 const char metric_str[] = "CPI"; 176 const struct pmu_metrics_table *pme_test; 177 178 evlist = evlist__new(); 179 TEST_ASSERT_VAL("failed to get evlist", evlist); 180 181 pme_test = find_core_metrics_table("testarch", "testcpu"); 182 ret = metricgroup__parse_groups_test(evlist, pme_test, metric_str); 183 if (ret < 0) { 184 pr_debug("failed to parse '%s' metric\n", metric_str); 185 goto out; 186 } 187 188 ret = test_expand_events(evlist); 189 190 out: 191 evlist__delete(evlist); 192 return ret; 193 } 194 195 static int test__expand_cgroup_events(struct test_suite *test __maybe_unused, 196 int subtest __maybe_unused) 197 { 198 int ret; 199 200 ret = expand_default_events(); 201 TEST_ASSERT_EQUAL("failed to expand default events", ret, 0); 202 203 ret = expand_group_events(); 204 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0); 205 206 ret = expand_libpfm_events(); 207 TEST_ASSERT_EQUAL("failed to expand event group", ret, 0); 208 209 ret = expand_metric_events(); 210 TEST_ASSERT_EQUAL("failed to expand metric events", ret, 0); 211 212 return ret; 213 } 214 215 DEFINE_SUITE("Event expansion for cgroups", expand_cgroup_events); 216