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
test_expand_events(struct evlist * evlist,struct rblist * metric_events)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
expand_default_events(void)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
expand_group_events(void)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
expand_libpfm_events(void)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
expand_metric_events(void)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
test__expand_cgroup_events(struct test_suite * test __maybe_unused,int subtest __maybe_unused)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