Fix: build failure with -fno-common
[lttng-tools.git] / tests / unit / test_ust_data.c
1 /*
2 * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * as published by the Free Software Foundation; only version 2
7 * of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #include <assert.h>
20 #include <errno.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <unistd.h>
25 #include <time.h>
26 #include <urcu.h>
27
28 #include <lttng/lttng.h>
29 #include <bin/lttng-sessiond/lttng-ust-abi.h>
30 #include <common/defaults.h>
31 #include <bin/lttng-sessiond/trace-ust.h>
32 #include <bin/lttng-sessiond/ust-app.h>
33 #include <bin/lttng-sessiond/notification-thread.h>
34
35 #include <tap/tap.h>
36
37 /* This path will NEVER be created in this test */
38 #define PATH1 "/tmp/.test-junk-lttng"
39
40 #define RANDOM_STRING_LEN 11
41
42 /* Number of TAP tests in this file */
43 #define NUM_TESTS 16
44
45 /* For error.h */
46 int lttng_opt_quiet = 1;
47 int lttng_opt_verbose;
48 int lttng_opt_mi;
49
50 static const char alphanum[] =
51 "0123456789"
52 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
53 "abcdefghijklmnopqrstuvwxyz";
54 static char random_string[RANDOM_STRING_LEN];
55
56 /*
57 * Return random string of 10 characters.
58 * Not thread-safe.
59 */
60 static char *get_random_string(void)
61 {
62 int i;
63
64 for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
65 random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
66 }
67
68 random_string[RANDOM_STRING_LEN - 1] = '\0';
69
70 return random_string;
71 }
72
73 static void test_create_one_ust_session(void)
74 {
75 struct ltt_ust_session *usess =
76 trace_ust_create_session(42);
77
78 ok(usess != NULL, "Create UST session");
79
80 if (!usess) {
81 skip(1, "UST session is null");
82 return;
83 }
84
85 ok(usess->id == 42 &&
86 usess->active == 0 &&
87 usess->domain_global.channels != NULL &&
88 usess->uid == 0 &&
89 usess->gid == 0,
90 "Validate UST session");
91
92 trace_ust_destroy_session(usess);
93 }
94
95 static void test_create_ust_channel(void)
96 {
97 struct ltt_ust_channel *uchan;
98 struct lttng_channel attr;
99 struct lttng_channel_extended extended;
100
101 memset(&attr, 0, sizeof(attr));
102 memset(&extended, 0, sizeof(extended));
103 attr.attr.extended.ptr = &extended;
104
105 ok(lttng_strncpy(attr.name, "channel0", sizeof(attr.name)) == 0,
106 "Validate channel name length");
107 uchan = trace_ust_create_channel(&attr, LTTNG_DOMAIN_UST);
108 ok(uchan != NULL, "Create UST channel");
109
110 if (!uchan) {
111 skip(1, "UST channel is null");
112 return;
113 }
114
115 ok(uchan->enabled == 0 &&
116 strncmp(uchan->name, "channel0", 8) == 0 &&
117 uchan->name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0' &&
118 uchan->ctx != NULL &&
119 uchan->events != NULL &&
120 uchan->attr.overwrite == attr.attr.overwrite,
121 "Validate UST channel");
122
123 trace_ust_destroy_channel(uchan);
124 }
125
126 static void test_create_ust_event(void)
127 {
128 struct ltt_ust_event *event;
129 struct lttng_event ev;
130 enum lttng_error_code ret;
131
132 memset(&ev, 0, sizeof(ev));
133 ok(lttng_strncpy(ev.name, get_random_string(),
134 LTTNG_SYMBOL_NAME_LEN) == 0,
135 "Validate string length");
136 ev.type = LTTNG_EVENT_TRACEPOINT;
137 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
138
139 ret = trace_ust_create_event(&ev, NULL, NULL, NULL, false, &event);
140
141 ok(ret == LTTNG_OK, "Create UST event");
142
143 if (!event) {
144 skip(1, "UST event is null");
145 return;
146 }
147
148 ok(event->enabled == 0 &&
149 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
150 strcmp(event->attr.name, ev.name) == 0 &&
151 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
152 "Validate UST event");
153
154 trace_ust_destroy_event(event);
155 }
156
157 static void test_create_ust_event_exclusion(void)
158 {
159 enum lttng_error_code ret;
160 struct ltt_ust_event *event;
161 struct lttng_event ev;
162 char *name;
163 char *random_name;
164 struct lttng_event_exclusion *exclusion = NULL;
165 struct lttng_event_exclusion *exclusion_copy = NULL;
166 const int exclusion_count = 2;
167
168 memset(&ev, 0, sizeof(ev));
169
170 /* make a wildcarded event name */
171 name = get_random_string();
172 name[strlen(name) - 1] = '*';
173 ok(lttng_strncpy(ev.name, name, LTTNG_SYMBOL_NAME_LEN) == 0,
174 "Validate string length");
175
176 ev.type = LTTNG_EVENT_TRACEPOINT;
177 ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
178
179 /* set up an exclusion set */
180 exclusion = zmalloc(sizeof(*exclusion) +
181 LTTNG_SYMBOL_NAME_LEN * exclusion_count);
182 ok(exclusion != NULL, "Create UST exclusion");
183 if (!exclusion) {
184 skip(4, "zmalloc failed");
185 goto end;
186 }
187
188 exclusion->count = exclusion_count;
189 random_name = get_random_string();
190 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 0), random_name,
191 LTTNG_SYMBOL_NAME_LEN);
192 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 1), random_name,
193 LTTNG_SYMBOL_NAME_LEN);
194
195 ret = trace_ust_create_event(&ev, NULL, NULL, exclusion, false, &event);
196 exclusion = NULL;
197
198 ok(ret != LTTNG_OK, "Create UST event with identical exclusion names fails");
199
200 exclusion = zmalloc(sizeof(*exclusion) +
201 LTTNG_SYMBOL_NAME_LEN * exclusion_count);
202 ok(exclusion != NULL, "Create UST exclusion");
203 if (!exclusion) {
204 skip(2, "zmalloc failed");
205 goto end;
206 }
207
208 exclusion_copy = zmalloc(sizeof(*exclusion) +
209 LTTNG_SYMBOL_NAME_LEN * exclusion_count);
210 if (!exclusion_copy) {
211 skip(2, "zmalloc failed");
212 goto end;
213 }
214
215 /*
216 * We are giving ownership of the exclusion struct to the
217 * trace_ust_create_event() function. Make a copy of the exclusion struct
218 * so we can compare it later.
219 */
220
221 exclusion->count = exclusion_count;
222 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 0),
223 get_random_string(), LTTNG_SYMBOL_NAME_LEN);
224 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 1),
225 get_random_string(), LTTNG_SYMBOL_NAME_LEN);
226
227 exclusion_copy->count = exclusion_count;
228 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion_copy, 0),
229 LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 0), LTTNG_SYMBOL_NAME_LEN);
230 strncpy(LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion_copy, 1),
231 LTTNG_EVENT_EXCLUSION_NAME_AT(exclusion, 1), LTTNG_SYMBOL_NAME_LEN);
232
233 ret = trace_ust_create_event(&ev, NULL, NULL, exclusion, false, &event);
234 exclusion = NULL;
235 ok(ret == LTTNG_OK, "Create UST event with different exclusion names");
236
237 if (!event) {
238 skip(1, "UST event with exclusion is null");
239 goto end;
240 }
241
242 ok(event->enabled == 0 &&
243 event->attr.instrumentation == LTTNG_UST_TRACEPOINT &&
244 strcmp(event->attr.name, ev.name) == 0 &&
245 event->exclusion != NULL &&
246 event->exclusion->count == exclusion_count &&
247 !memcmp(event->exclusion->names, exclusion_copy->names,
248 LTTNG_SYMBOL_NAME_LEN * exclusion_count) &&
249 event->attr.name[LTTNG_UST_SYM_NAME_LEN - 1] == '\0',
250 "Validate UST event and exclusion");
251
252 trace_ust_destroy_event(event);
253 end:
254 free(exclusion);
255 free(exclusion_copy);
256 return;
257 }
258
259
260 static void test_create_ust_context(void)
261 {
262 struct lttng_event_context ectx;
263 struct ltt_ust_context *uctx;
264
265 ectx.ctx = LTTNG_EVENT_CONTEXT_VTID;
266
267 uctx = trace_ust_create_context(&ectx);
268 ok(uctx != NULL, "Create UST context");
269
270 if (uctx) {
271 ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
272 "Validate UST context");
273 } else {
274 skip(1, "Skipping UST context validation as creation failed");
275 }
276 free(uctx);
277 }
278
279 int main(int argc, char **argv)
280 {
281 plan_tests(NUM_TESTS);
282
283 diag("UST data structures unit test");
284
285 rcu_register_thread();
286
287 test_create_one_ust_session();
288 test_create_ust_channel();
289 test_create_ust_event();
290 test_create_ust_context();
291 test_create_ust_event_exclusion();
292
293 rcu_unregister_thread();
294
295 return exit_status();
296 }
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