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