Commit | Line | Data |
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d2709c7c | 1 | #include <linux/hw_breakpoint.h> |
8dd2a131 | 2 | #include <linux/err.h> |
8ad8db37 | 3 | #include "util.h" |
6b58e7f1 | 4 | #include "../perf.h" |
361c99a6 | 5 | #include "evlist.h" |
69aad6f1 | 6 | #include "evsel.h" |
4b6ab94e | 7 | #include <subcmd/parse-options.h> |
8ad8db37 | 8 | #include "parse-events.h" |
4b6ab94e | 9 | #include <subcmd/exec-cmd.h> |
42f60c2d | 10 | #include "string.h" |
5aab621b | 11 | #include "symbol.h" |
5beeded1 | 12 | #include "cache.h" |
8755a8f2 | 13 | #include "header.h" |
84c86ca1 | 14 | #include "bpf-loader.h" |
6e81c74c | 15 | #include "debug.h" |
592d5a6b | 16 | #include <api/fs/tracing_path.h> |
ac20de6f | 17 | #include "parse-events-bison.h" |
90e2b22d | 18 | #define YY_EXTRA_TYPE int |
89812fc8 | 19 | #include "parse-events-flex.h" |
5f537a26 | 20 | #include "pmu.h" |
b41f1cec | 21 | #include "thread_map.h" |
f30a79b0 | 22 | #include "cpumap.h" |
40218dae | 23 | #include "probe-file.h" |
b39b8393 | 24 | #include "asm/bug.h" |
ac12f676 | 25 | #include "util/parse-branch-options.h" |
89812fc8 JO |
26 | |
27 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 28 | |
82ba1f2f JO |
29 | #ifdef PARSER_DEBUG |
30 | extern int parse_events_debug; | |
31 | #endif | |
ac20de6f | 32 | int parse_events_parse(void *data, void *scanner); |
e637d177 HK |
33 | static int get_config_terms(struct list_head *head_config, |
34 | struct list_head *head_terms __maybe_unused); | |
bcd3279f | 35 | |
dcb4e102 KL |
36 | static struct perf_pmu_event_symbol *perf_pmu_events_list; |
37 | /* | |
38 | * The variable indicates the number of supported pmu event symbols. | |
39 | * 0 means not initialized and ready to init | |
40 | * -1 means failed to init, don't try anymore | |
41 | * >0 is the number of supported pmu event symbols | |
42 | */ | |
43 | static int perf_pmu_events_list_num; | |
44 | ||
705750f2 | 45 | struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
1dc12760 JO |
46 | [PERF_COUNT_HW_CPU_CYCLES] = { |
47 | .symbol = "cpu-cycles", | |
48 | .alias = "cycles", | |
49 | }, | |
50 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
51 | .symbol = "instructions", | |
52 | .alias = "", | |
53 | }, | |
54 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
55 | .symbol = "cache-references", | |
56 | .alias = "", | |
57 | }, | |
58 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
59 | .symbol = "cache-misses", | |
60 | .alias = "", | |
61 | }, | |
62 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
63 | .symbol = "branch-instructions", | |
64 | .alias = "branches", | |
65 | }, | |
66 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
67 | .symbol = "branch-misses", | |
68 | .alias = "", | |
69 | }, | |
70 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
71 | .symbol = "bus-cycles", | |
72 | .alias = "", | |
73 | }, | |
74 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
75 | .symbol = "stalled-cycles-frontend", | |
76 | .alias = "idle-cycles-frontend", | |
77 | }, | |
78 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
79 | .symbol = "stalled-cycles-backend", | |
80 | .alias = "idle-cycles-backend", | |
81 | }, | |
82 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
83 | .symbol = "ref-cycles", | |
84 | .alias = "", | |
85 | }, | |
86 | }; | |
87 | ||
705750f2 | 88 | struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { |
1dc12760 JO |
89 | [PERF_COUNT_SW_CPU_CLOCK] = { |
90 | .symbol = "cpu-clock", | |
91 | .alias = "", | |
92 | }, | |
93 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
94 | .symbol = "task-clock", | |
95 | .alias = "", | |
96 | }, | |
97 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
98 | .symbol = "page-faults", | |
99 | .alias = "faults", | |
100 | }, | |
101 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
102 | .symbol = "context-switches", | |
103 | .alias = "cs", | |
104 | }, | |
105 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
106 | .symbol = "cpu-migrations", | |
107 | .alias = "migrations", | |
108 | }, | |
109 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
110 | .symbol = "minor-faults", | |
111 | .alias = "", | |
112 | }, | |
113 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
114 | .symbol = "major-faults", | |
115 | .alias = "", | |
116 | }, | |
117 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
118 | .symbol = "alignment-faults", | |
119 | .alias = "", | |
120 | }, | |
121 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
122 | .symbol = "emulation-faults", | |
123 | .alias = "", | |
124 | }, | |
d22d1a2a AH |
125 | [PERF_COUNT_SW_DUMMY] = { |
126 | .symbol = "dummy", | |
127 | .alias = "", | |
128 | }, | |
bae9cc41 ACM |
129 | [PERF_COUNT_SW_BPF_OUTPUT] = { |
130 | .symbol = "bpf-output", | |
131 | .alias = "", | |
132 | }, | |
8ad8db37 IM |
133 | }; |
134 | ||
cdd6c482 IM |
135 | #define __PERF_EVENT_FIELD(config, name) \ |
136 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 137 | |
1fc570ad | 138 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 139 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 140 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 141 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 142 | |
22a9f41b ACM |
143 | #define for_each_subsystem(sys_dir, sys_dirent) \ |
144 | while ((sys_dirent = readdir(sys_dir)) != NULL) \ | |
145 | if (sys_dirent->d_type == DT_DIR && \ | |
146 | (strcmp(sys_dirent->d_name, ".")) && \ | |
147 | (strcmp(sys_dirent->d_name, ".."))) | |
f6bdafef | 148 | |
ae07b63f PZ |
149 | static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir) |
150 | { | |
151 | char evt_path[MAXPATHLEN]; | |
152 | int fd; | |
153 | ||
ebf294bf | 154 | snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path, |
ae07b63f PZ |
155 | sys_dir->d_name, evt_dir->d_name); |
156 | fd = open(evt_path, O_RDONLY); | |
157 | if (fd < 0) | |
158 | return -EINVAL; | |
159 | close(fd); | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
22a9f41b ACM |
164 | #define for_each_event(sys_dirent, evt_dir, evt_dirent) \ |
165 | while ((evt_dirent = readdir(evt_dir)) != NULL) \ | |
166 | if (evt_dirent->d_type == DT_DIR && \ | |
167 | (strcmp(evt_dirent->d_name, ".")) && \ | |
168 | (strcmp(evt_dirent->d_name, "..")) && \ | |
169 | (!tp_event_has_id(sys_dirent, evt_dirent))) | |
f6bdafef | 170 | |
270bbbe8 | 171 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 172 | |
f6bdafef | 173 | |
1ef2ed10 | 174 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 175 | { |
1ef2ed10 | 176 | struct tracepoint_path *path = NULL; |
f6bdafef | 177 | DIR *sys_dir, *evt_dir; |
22a9f41b | 178 | struct dirent *sys_dirent, *evt_dirent; |
8aa8a7c8 | 179 | char id_buf[24]; |
725b1368 | 180 | int fd; |
f6bdafef JB |
181 | u64 id; |
182 | char evt_path[MAXPATHLEN]; | |
725b1368 | 183 | char dir_path[MAXPATHLEN]; |
f6bdafef | 184 | |
ebf294bf | 185 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 186 | if (!sys_dir) |
725b1368 | 187 | return NULL; |
6b58e7f1 | 188 | |
22a9f41b | 189 | for_each_subsystem(sys_dir, sys_dirent) { |
725b1368 | 190 | |
ebf294bf | 191 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 192 | sys_dirent->d_name); |
725b1368 ED |
193 | evt_dir = opendir(dir_path); |
194 | if (!evt_dir) | |
6b58e7f1 | 195 | continue; |
725b1368 | 196 | |
22a9f41b | 197 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
725b1368 ED |
198 | |
199 | snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, | |
22a9f41b | 200 | evt_dirent->d_name); |
725b1368 | 201 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
202 | if (fd < 0) |
203 | continue; | |
204 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
205 | close(fd); | |
206 | continue; | |
207 | } | |
208 | close(fd); | |
209 | id = atoll(id_buf); | |
210 | if (id == config) { | |
211 | closedir(evt_dir); | |
212 | closedir(sys_dir); | |
59b4caeb | 213 | path = zalloc(sizeof(*path)); |
5aa365f2 TS |
214 | if (!path) |
215 | return NULL; | |
1ef2ed10 FW |
216 | path->system = malloc(MAX_EVENT_LENGTH); |
217 | if (!path->system) { | |
218 | free(path); | |
219 | return NULL; | |
220 | } | |
221 | path->name = malloc(MAX_EVENT_LENGTH); | |
222 | if (!path->name) { | |
74cf249d | 223 | zfree(&path->system); |
1ef2ed10 FW |
224 | free(path); |
225 | return NULL; | |
226 | } | |
22a9f41b | 227 | strncpy(path->system, sys_dirent->d_name, |
1ef2ed10 | 228 | MAX_EVENT_LENGTH); |
22a9f41b | 229 | strncpy(path->name, evt_dirent->d_name, |
1ef2ed10 FW |
230 | MAX_EVENT_LENGTH); |
231 | return path; | |
f6bdafef JB |
232 | } |
233 | } | |
234 | closedir(evt_dir); | |
235 | } | |
236 | ||
f6bdafef | 237 | closedir(sys_dir); |
1ef2ed10 FW |
238 | return NULL; |
239 | } | |
240 | ||
e7c93f09 NK |
241 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
242 | { | |
243 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
244 | char *str = strchr(name, ':'); | |
245 | ||
246 | if (path == NULL || str == NULL) { | |
247 | free(path); | |
248 | return NULL; | |
249 | } | |
250 | ||
251 | path->system = strndup(name, str - name); | |
252 | path->name = strdup(str+1); | |
253 | ||
254 | if (path->system == NULL || path->name == NULL) { | |
74cf249d ACM |
255 | zfree(&path->system); |
256 | zfree(&path->name); | |
506fde11 | 257 | zfree(&path); |
e7c93f09 NK |
258 | } |
259 | ||
260 | return path; | |
261 | } | |
262 | ||
1424dc96 DA |
263 | const char *event_type(int type) |
264 | { | |
265 | switch (type) { | |
266 | case PERF_TYPE_HARDWARE: | |
267 | return "hardware"; | |
268 | ||
269 | case PERF_TYPE_SOFTWARE: | |
270 | return "software"; | |
271 | ||
272 | case PERF_TYPE_TRACEPOINT: | |
273 | return "tracepoint"; | |
274 | ||
275 | case PERF_TYPE_HW_CACHE: | |
276 | return "hardware-cache"; | |
277 | ||
278 | default: | |
279 | break; | |
280 | } | |
281 | ||
282 | return "unknown"; | |
283 | } | |
284 | ||
e814fddd WN |
285 | static int parse_events__is_name_term(struct parse_events_term *term) |
286 | { | |
287 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
288 | } | |
7ae92e74 | 289 | |
e814fddd WN |
290 | static char *get_config_name(struct list_head *head_terms) |
291 | { | |
292 | struct parse_events_term *term; | |
293 | ||
294 | if (!head_terms) | |
295 | return NULL; | |
296 | ||
297 | list_for_each_entry(term, head_terms, list) | |
298 | if (parse_events__is_name_term(term)) | |
299 | return term->val.str; | |
300 | ||
301 | return NULL; | |
302 | } | |
7ae92e74 | 303 | |
410136f5 SE |
304 | static struct perf_evsel * |
305 | __add_event(struct list_head *list, int *idx, | |
306 | struct perf_event_attr *attr, | |
930a2e29 JO |
307 | char *name, struct cpu_map *cpus, |
308 | struct list_head *config_terms) | |
89812fc8 JO |
309 | { |
310 | struct perf_evsel *evsel; | |
311 | ||
312 | event_attr_init(attr); | |
313 | ||
75fc5ae5 | 314 | evsel = perf_evsel__new_idx(attr, *idx); |
c5cd8ac0 | 315 | if (!evsel) |
410136f5 | 316 | return NULL; |
89812fc8 | 317 | |
75fc5ae5 | 318 | (*idx)++; |
e3ba76de JO |
319 | evsel->cpus = cpu_map__get(cpus); |
320 | evsel->own_cpus = cpu_map__get(cpus); | |
321 | evsel->system_wide = !!cpus; | |
f30a79b0 | 322 | |
9db1763c ACM |
323 | if (name) |
324 | evsel->name = strdup(name); | |
930a2e29 JO |
325 | |
326 | if (config_terms) | |
327 | list_splice(config_terms, &evsel->config_terms); | |
328 | ||
b847cbdc | 329 | list_add_tail(&evsel->node, list); |
410136f5 | 330 | return evsel; |
89812fc8 JO |
331 | } |
332 | ||
c5cd8ac0 | 333 | static int add_event(struct list_head *list, int *idx, |
930a2e29 JO |
334 | struct perf_event_attr *attr, char *name, |
335 | struct list_head *config_terms) | |
7ae92e74 | 336 | { |
930a2e29 | 337 | return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM; |
7ae92e74 YZ |
338 | } |
339 | ||
0b668bc9 | 340 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
341 | { |
342 | int i, j; | |
61c45981 | 343 | int n, longest = -1; |
8326f44d IM |
344 | |
345 | for (i = 0; i < size; i++) { | |
0b668bc9 | 346 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 347 | n = strlen(names[i][j]); |
89812fc8 | 348 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
349 | longest = n; |
350 | } | |
89812fc8 | 351 | if (longest > 0) |
61c45981 | 352 | return i; |
8326f44d IM |
353 | } |
354 | ||
8953645f | 355 | return -1; |
8326f44d IM |
356 | } |
357 | ||
43d0b978 WN |
358 | typedef int config_term_func_t(struct perf_event_attr *attr, |
359 | struct parse_events_term *term, | |
360 | struct parse_events_error *err); | |
361 | static int config_term_common(struct perf_event_attr *attr, | |
362 | struct parse_events_term *term, | |
363 | struct parse_events_error *err); | |
364 | static int config_attr(struct perf_event_attr *attr, | |
365 | struct list_head *head, | |
366 | struct parse_events_error *err, | |
367 | config_term_func_t config_term); | |
368 | ||
c5cd8ac0 | 369 | int parse_events_add_cache(struct list_head *list, int *idx, |
43d0b978 | 370 | char *type, char *op_result1, char *op_result2, |
2c97b0d4 | 371 | struct parse_events_error *err, |
43d0b978 | 372 | struct list_head *head_config) |
8326f44d | 373 | { |
89812fc8 | 374 | struct perf_event_attr attr; |
43d0b978 WN |
375 | LIST_HEAD(config_terms); |
376 | char name[MAX_NAME_LEN], *config_name; | |
61c45981 | 377 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
378 | char *op_result[2] = { op_result1, op_result2 }; |
379 | int i, n; | |
8326f44d | 380 | |
8326f44d IM |
381 | /* |
382 | * No fallback - if we cannot get a clear cache type | |
383 | * then bail out: | |
384 | */ | |
0b668bc9 | 385 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 386 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 387 | if (cache_type == -1) |
89812fc8 JO |
388 | return -EINVAL; |
389 | ||
43d0b978 | 390 | config_name = get_config_name(head_config); |
89812fc8 | 391 | n = snprintf(name, MAX_NAME_LEN, "%s", type); |
61c45981 | 392 | |
89812fc8 JO |
393 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
394 | char *str = op_result[i]; | |
395 | ||
275ef387 | 396 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
397 | |
398 | if (cache_op == -1) { | |
0b668bc9 | 399 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 400 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 401 | if (cache_op >= 0) { |
0b668bc9 | 402 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 403 | return -EINVAL; |
61c45981 PM |
404 | continue; |
405 | } | |
406 | } | |
407 | ||
408 | if (cache_result == -1) { | |
0b668bc9 ACM |
409 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
410 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
411 | if (cache_result >= 0) |
412 | continue; | |
413 | } | |
61c45981 | 414 | } |
8326f44d | 415 | |
8326f44d IM |
416 | /* |
417 | * Fall back to reads: | |
418 | */ | |
8953645f IM |
419 | if (cache_op == -1) |
420 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 421 | |
8326f44d IM |
422 | /* |
423 | * Fall back to accesses: | |
424 | */ | |
425 | if (cache_result == -1) | |
426 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
427 | ||
89812fc8 JO |
428 | memset(&attr, 0, sizeof(attr)); |
429 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
430 | attr.type = PERF_TYPE_HW_CACHE; | |
43d0b978 WN |
431 | |
432 | if (head_config) { | |
2c97b0d4 | 433 | if (config_attr(&attr, head_config, err, |
43d0b978 WN |
434 | config_term_common)) |
435 | return -EINVAL; | |
436 | ||
437 | if (get_config_terms(head_config, &config_terms)) | |
438 | return -ENOMEM; | |
439 | } | |
440 | return add_event(list, idx, &attr, config_name ? : name, &config_terms); | |
bcd3279f FW |
441 | } |
442 | ||
272ed29a | 443 | static void tracepoint_error(struct parse_events_error *e, int err, |
8c619d6a | 444 | const char *sys, const char *name) |
19658171 JO |
445 | { |
446 | char help[BUFSIZ]; | |
447 | ||
ec183d22 AH |
448 | if (!e) |
449 | return; | |
450 | ||
19658171 JO |
451 | /* |
452 | * We get error directly from syscall errno ( > 0), | |
453 | * or from encoded pointer's error ( < 0). | |
454 | */ | |
455 | err = abs(err); | |
456 | ||
457 | switch (err) { | |
458 | case EACCES: | |
272ed29a | 459 | e->str = strdup("can't access trace events"); |
19658171 JO |
460 | break; |
461 | case ENOENT: | |
272ed29a | 462 | e->str = strdup("unknown tracepoint"); |
19658171 JO |
463 | break; |
464 | default: | |
272ed29a | 465 | e->str = strdup("failed to add tracepoint"); |
19658171 JO |
466 | break; |
467 | } | |
468 | ||
469 | tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); | |
272ed29a | 470 | e->help = strdup(help); |
19658171 JO |
471 | } |
472 | ||
c5cd8ac0 | 473 | static int add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 474 | const char *sys_name, const char *evt_name, |
272ed29a | 475 | struct parse_events_error *err, |
e637d177 | 476 | struct list_head *head_config) |
bcd3279f | 477 | { |
82fe1c29 | 478 | struct perf_evsel *evsel; |
bcd3279f | 479 | |
ef503831 | 480 | evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); |
19658171 | 481 | if (IS_ERR(evsel)) { |
272ed29a | 482 | tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name); |
8dd2a131 | 483 | return PTR_ERR(evsel); |
19658171 | 484 | } |
bcd3279f | 485 | |
e637d177 HK |
486 | if (head_config) { |
487 | LIST_HEAD(config_terms); | |
488 | ||
489 | if (get_config_terms(head_config, &config_terms)) | |
490 | return -ENOMEM; | |
491 | list_splice(&config_terms, &evsel->config_terms); | |
492 | } | |
493 | ||
82fe1c29 | 494 | list_add_tail(&evsel->node, list); |
82fe1c29 | 495 | return 0; |
8326f44d IM |
496 | } |
497 | ||
c5cd8ac0 | 498 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
8c619d6a | 499 | const char *sys_name, const char *evt_name, |
272ed29a | 500 | struct parse_events_error *err, |
e637d177 | 501 | struct list_head *head_config) |
bcd3279f FW |
502 | { |
503 | char evt_path[MAXPATHLEN]; | |
504 | struct dirent *evt_ent; | |
505 | DIR *evt_dir; | |
27bf90bf | 506 | int ret = 0, found = 0; |
bcd3279f | 507 | |
ebf294bf | 508 | snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name); |
bcd3279f | 509 | evt_dir = opendir(evt_path); |
bcd3279f | 510 | if (!evt_dir) { |
272ed29a | 511 | tracepoint_error(err, errno, sys_name, evt_name); |
89812fc8 | 512 | return -1; |
bcd3279f FW |
513 | } |
514 | ||
89812fc8 | 515 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
516 | if (!strcmp(evt_ent->d_name, ".") |
517 | || !strcmp(evt_ent->d_name, "..") | |
518 | || !strcmp(evt_ent->d_name, "enable") | |
519 | || !strcmp(evt_ent->d_name, "filter")) | |
520 | continue; | |
521 | ||
89812fc8 | 522 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
523 | continue; |
524 | ||
27bf90bf JO |
525 | found++; |
526 | ||
e637d177 | 527 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, |
272ed29a | 528 | err, head_config); |
bcd3279f FW |
529 | } |
530 | ||
27bf90bf JO |
531 | if (!found) { |
532 | tracepoint_error(err, ENOENT, sys_name, evt_name); | |
533 | ret = -1; | |
534 | } | |
535 | ||
0bd3f084 | 536 | closedir(evt_dir); |
89812fc8 | 537 | return ret; |
bcd3279f FW |
538 | } |
539 | ||
c5cd8ac0 | 540 | static int add_tracepoint_event(struct list_head *list, int *idx, |
8c619d6a | 541 | const char *sys_name, const char *evt_name, |
272ed29a | 542 | struct parse_events_error *err, |
e637d177 | 543 | struct list_head *head_config) |
f35488f9 JO |
544 | { |
545 | return strpbrk(evt_name, "*?") ? | |
e637d177 | 546 | add_tracepoint_multi_event(list, idx, sys_name, evt_name, |
272ed29a | 547 | err, head_config) : |
e637d177 | 548 | add_tracepoint(list, idx, sys_name, evt_name, |
272ed29a | 549 | err, head_config); |
f35488f9 JO |
550 | } |
551 | ||
c5cd8ac0 | 552 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
8c619d6a | 553 | const char *sys_name, const char *evt_name, |
272ed29a | 554 | struct parse_events_error *err, |
e637d177 | 555 | struct list_head *head_config) |
f35488f9 JO |
556 | { |
557 | struct dirent *events_ent; | |
558 | DIR *events_dir; | |
559 | int ret = 0; | |
560 | ||
561 | events_dir = opendir(tracing_events_path); | |
562 | if (!events_dir) { | |
272ed29a | 563 | tracepoint_error(err, errno, sys_name, evt_name); |
f35488f9 JO |
564 | return -1; |
565 | } | |
566 | ||
567 | while (!ret && (events_ent = readdir(events_dir))) { | |
568 | if (!strcmp(events_ent->d_name, ".") | |
569 | || !strcmp(events_ent->d_name, "..") | |
570 | || !strcmp(events_ent->d_name, "enable") | |
571 | || !strcmp(events_ent->d_name, "header_event") | |
572 | || !strcmp(events_ent->d_name, "header_page")) | |
573 | continue; | |
574 | ||
575 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
576 | continue; | |
577 | ||
578 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
272ed29a | 579 | evt_name, err, head_config); |
f35488f9 JO |
580 | } |
581 | ||
582 | closedir(events_dir); | |
583 | return ret; | |
584 | } | |
585 | ||
4edf30e3 WN |
586 | struct __add_bpf_event_param { |
587 | struct parse_events_evlist *data; | |
588 | struct list_head *list; | |
95088a59 | 589 | struct list_head *head_config; |
4edf30e3 WN |
590 | }; |
591 | ||
cd102d70 | 592 | static int add_bpf_event(const char *group, const char *event, int fd, |
4edf30e3 WN |
593 | void *_param) |
594 | { | |
595 | LIST_HEAD(new_evsels); | |
596 | struct __add_bpf_event_param *param = _param; | |
597 | struct parse_events_evlist *evlist = param->data; | |
598 | struct list_head *list = param->list; | |
1f45b1d4 | 599 | struct perf_evsel *pos; |
4edf30e3 WN |
600 | int err; |
601 | ||
602 | pr_debug("add bpf event %s:%s and attach bpf program %d\n", | |
cd102d70 | 603 | group, event, fd); |
4edf30e3 | 604 | |
cd102d70 WN |
605 | err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, group, |
606 | event, evlist->error, | |
95088a59 | 607 | param->head_config); |
4edf30e3 WN |
608 | if (err) { |
609 | struct perf_evsel *evsel, *tmp; | |
610 | ||
611 | pr_debug("Failed to add BPF event %s:%s\n", | |
cd102d70 | 612 | group, event); |
4edf30e3 WN |
613 | list_for_each_entry_safe(evsel, tmp, &new_evsels, node) { |
614 | list_del(&evsel->node); | |
615 | perf_evsel__delete(evsel); | |
616 | } | |
617 | return err; | |
618 | } | |
cd102d70 | 619 | pr_debug("adding %s:%s\n", group, event); |
4edf30e3 | 620 | |
1f45b1d4 WN |
621 | list_for_each_entry(pos, &new_evsels, node) { |
622 | pr_debug("adding %s:%s to %p\n", | |
cd102d70 | 623 | group, event, pos); |
1f45b1d4 WN |
624 | pos->bpf_fd = fd; |
625 | } | |
4edf30e3 WN |
626 | list_splice(&new_evsels, list); |
627 | return 0; | |
628 | } | |
629 | ||
84c86ca1 WN |
630 | int parse_events_load_bpf_obj(struct parse_events_evlist *data, |
631 | struct list_head *list, | |
95088a59 WN |
632 | struct bpf_object *obj, |
633 | struct list_head *head_config) | |
84c86ca1 WN |
634 | { |
635 | int err; | |
636 | char errbuf[BUFSIZ]; | |
95088a59 | 637 | struct __add_bpf_event_param param = {data, list, head_config}; |
aa3abf30 | 638 | static bool registered_unprobe_atexit = false; |
84c86ca1 WN |
639 | |
640 | if (IS_ERR(obj) || !obj) { | |
641 | snprintf(errbuf, sizeof(errbuf), | |
642 | "Internal error: load bpf obj with NULL"); | |
643 | err = -EINVAL; | |
644 | goto errout; | |
645 | } | |
646 | ||
aa3abf30 WN |
647 | /* |
648 | * Register atexit handler before calling bpf__probe() so | |
649 | * bpf__probe() don't need to unprobe probe points its already | |
650 | * created when failure. | |
651 | */ | |
652 | if (!registered_unprobe_atexit) { | |
653 | atexit(bpf__clear); | |
654 | registered_unprobe_atexit = true; | |
655 | } | |
656 | ||
657 | err = bpf__probe(obj); | |
658 | if (err) { | |
659 | bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf)); | |
660 | goto errout; | |
661 | } | |
662 | ||
1e5e3ee8 WN |
663 | err = bpf__load(obj); |
664 | if (err) { | |
665 | bpf__strerror_load(obj, err, errbuf, sizeof(errbuf)); | |
666 | goto errout; | |
667 | } | |
668 | ||
cd102d70 | 669 | err = bpf__foreach_event(obj, add_bpf_event, ¶m); |
4edf30e3 WN |
670 | if (err) { |
671 | snprintf(errbuf, sizeof(errbuf), | |
672 | "Attach events in BPF object failed"); | |
673 | goto errout; | |
674 | } | |
675 | ||
676 | return 0; | |
84c86ca1 WN |
677 | errout: |
678 | data->error->help = strdup("(add -v to see detail)"); | |
679 | data->error->str = strdup(errbuf); | |
680 | return err; | |
681 | } | |
682 | ||
a34f3be7 WN |
683 | static int |
684 | parse_events_config_bpf(struct parse_events_evlist *data, | |
685 | struct bpf_object *obj, | |
686 | struct list_head *head_config) | |
687 | { | |
688 | struct parse_events_term *term; | |
689 | int error_pos; | |
690 | ||
691 | if (!head_config || list_empty(head_config)) | |
692 | return 0; | |
693 | ||
694 | list_for_each_entry(term, head_config, list) { | |
695 | char errbuf[BUFSIZ]; | |
696 | int err; | |
697 | ||
698 | if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) { | |
699 | snprintf(errbuf, sizeof(errbuf), | |
700 | "Invalid config term for BPF object"); | |
701 | errbuf[BUFSIZ - 1] = '\0'; | |
702 | ||
703 | data->error->idx = term->err_term; | |
704 | data->error->str = strdup(errbuf); | |
705 | return -EINVAL; | |
706 | } | |
707 | ||
7630b3e2 | 708 | err = bpf__config_obj(obj, term, data->evlist, &error_pos); |
a34f3be7 | 709 | if (err) { |
7630b3e2 | 710 | bpf__strerror_config_obj(obj, term, data->evlist, |
a34f3be7 WN |
711 | &error_pos, err, errbuf, |
712 | sizeof(errbuf)); | |
713 | data->error->help = strdup( | |
7630b3e2 | 714 | "Hint:\tValid config terms:\n" |
e571e029 WN |
715 | " \tmap:[<arraymap>].value<indices>=[value]\n" |
716 | " \tmap:[<eventmap>].event<indices>=[event]\n" | |
7630b3e2 | 717 | "\n" |
e571e029 | 718 | " \twhere <indices> is something like [0,3...5] or [all]\n" |
a34f3be7 WN |
719 | " \t(add -v to see detail)"); |
720 | data->error->str = strdup(errbuf); | |
721 | if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE) | |
722 | data->error->idx = term->err_val; | |
723 | else | |
724 | data->error->idx = term->err_term + error_pos; | |
725 | return err; | |
726 | } | |
727 | } | |
728 | return 0; | |
729 | } | |
730 | ||
95088a59 WN |
731 | /* |
732 | * Split config terms: | |
733 | * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ... | |
734 | * 'call-graph=fp' is 'evt config', should be applied to each | |
735 | * events in bpf.c. | |
736 | * 'map:array.value[0]=1' is 'obj config', should be processed | |
737 | * with parse_events_config_bpf. | |
738 | * | |
739 | * Move object config terms from the first list to obj_head_config. | |
740 | */ | |
741 | static void | |
742 | split_bpf_config_terms(struct list_head *evt_head_config, | |
743 | struct list_head *obj_head_config) | |
744 | { | |
745 | struct parse_events_term *term, *temp; | |
746 | ||
747 | /* | |
748 | * Currectly, all possible user config term | |
749 | * belong to bpf object. parse_events__is_hardcoded_term() | |
750 | * happends to be a good flag. | |
751 | * | |
752 | * See parse_events_config_bpf() and | |
753 | * config_term_tracepoint(). | |
754 | */ | |
755 | list_for_each_entry_safe(term, temp, evt_head_config, list) | |
756 | if (!parse_events__is_hardcoded_term(term)) | |
757 | list_move_tail(&term->list, obj_head_config); | |
758 | } | |
759 | ||
84c86ca1 WN |
760 | int parse_events_load_bpf(struct parse_events_evlist *data, |
761 | struct list_head *list, | |
d509db04 | 762 | char *bpf_file_name, |
a34f3be7 WN |
763 | bool source, |
764 | struct list_head *head_config) | |
84c86ca1 | 765 | { |
a34f3be7 | 766 | int err; |
95088a59 WN |
767 | struct bpf_object *obj; |
768 | LIST_HEAD(obj_head_config); | |
769 | ||
770 | if (head_config) | |
771 | split_bpf_config_terms(head_config, &obj_head_config); | |
84c86ca1 | 772 | |
d509db04 | 773 | obj = bpf__prepare_load(bpf_file_name, source); |
6371ca3b | 774 | if (IS_ERR(obj)) { |
84c86ca1 | 775 | char errbuf[BUFSIZ]; |
84c86ca1 | 776 | |
6371ca3b | 777 | err = PTR_ERR(obj); |
84c86ca1 WN |
778 | |
779 | if (err == -ENOTSUP) | |
780 | snprintf(errbuf, sizeof(errbuf), | |
781 | "BPF support is not compiled"); | |
782 | else | |
d3e0ce39 WN |
783 | bpf__strerror_prepare_load(bpf_file_name, |
784 | source, | |
785 | -err, errbuf, | |
786 | sizeof(errbuf)); | |
84c86ca1 WN |
787 | |
788 | data->error->help = strdup("(add -v to see detail)"); | |
789 | data->error->str = strdup(errbuf); | |
790 | return err; | |
791 | } | |
792 | ||
95088a59 | 793 | err = parse_events_load_bpf_obj(data, list, obj, head_config); |
a34f3be7 WN |
794 | if (err) |
795 | return err; | |
95088a59 WN |
796 | err = parse_events_config_bpf(data, obj, &obj_head_config); |
797 | ||
798 | /* | |
799 | * Caller doesn't know anything about obj_head_config, | |
800 | * so combine them together again before returnning. | |
801 | */ | |
802 | if (head_config) | |
803 | list_splice_tail(&obj_head_config, head_config); | |
804 | return err; | |
84c86ca1 WN |
805 | } |
806 | ||
89812fc8 JO |
807 | static int |
808 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
809 | { |
810 | int i; | |
811 | ||
812 | for (i = 0; i < 3; i++) { | |
89812fc8 | 813 | if (!type || !type[i]) |
1b290d67 FW |
814 | break; |
815 | ||
7582732f JO |
816 | #define CHECK_SET_TYPE(bit) \ |
817 | do { \ | |
818 | if (attr->bp_type & bit) \ | |
819 | return -EINVAL; \ | |
820 | else \ | |
821 | attr->bp_type |= bit; \ | |
822 | } while (0) | |
823 | ||
1b290d67 FW |
824 | switch (type[i]) { |
825 | case 'r': | |
7582732f | 826 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
827 | break; |
828 | case 'w': | |
7582732f | 829 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
830 | break; |
831 | case 'x': | |
7582732f | 832 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
833 | break; |
834 | default: | |
89812fc8 | 835 | return -EINVAL; |
1b290d67 FW |
836 | } |
837 | } | |
89812fc8 | 838 | |
7582732f JO |
839 | #undef CHECK_SET_TYPE |
840 | ||
1b290d67 FW |
841 | if (!attr->bp_type) /* Default */ |
842 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
843 | ||
89812fc8 | 844 | return 0; |
1b290d67 FW |
845 | } |
846 | ||
c5cd8ac0 | 847 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
3741eb9f | 848 | void *ptr, char *type, u64 len) |
1b290d67 | 849 | { |
89812fc8 | 850 | struct perf_event_attr attr; |
1b290d67 | 851 | |
89812fc8 | 852 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 853 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 854 | |
89812fc8 JO |
855 | if (parse_breakpoint_type(type, &attr)) |
856 | return -EINVAL; | |
1b290d67 | 857 | |
3741eb9f JS |
858 | /* Provide some defaults if len is not specified */ |
859 | if (!len) { | |
860 | if (attr.bp_type == HW_BREAKPOINT_X) | |
861 | len = sizeof(long); | |
862 | else | |
863 | len = HW_BREAKPOINT_LEN_4; | |
864 | } | |
865 | ||
866 | attr.bp_len = len; | |
61c45981 | 867 | |
89812fc8 | 868 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 869 | attr.sample_period = 1; |
b908debd | 870 | |
930a2e29 | 871 | return add_event(list, idx, &attr, NULL, NULL); |
74d5b588 JSR |
872 | } |
873 | ||
3b0e371c JO |
874 | static int check_type_val(struct parse_events_term *term, |
875 | struct parse_events_error *err, | |
876 | int type) | |
877 | { | |
878 | if (type == term->type_val) | |
879 | return 0; | |
880 | ||
881 | if (err) { | |
882 | err->idx = term->err_val; | |
883 | if (type == PARSE_EVENTS__TERM_TYPE_NUM) | |
884 | err->str = strdup("expected numeric value"); | |
885 | else | |
886 | err->str = strdup("expected string value"); | |
887 | } | |
888 | return -EINVAL; | |
889 | } | |
890 | ||
17cb5f84 WN |
891 | /* |
892 | * Update according to parse-events.l | |
893 | */ | |
894 | static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { | |
895 | [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>", | |
896 | [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", | |
897 | [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", | |
898 | [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", | |
899 | [PARSE_EVENTS__TERM_TYPE_NAME] = "name", | |
900 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", | |
901 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", | |
902 | [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type", | |
903 | [PARSE_EVENTS__TERM_TYPE_TIME] = "time", | |
904 | [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph", | |
905 | [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size", | |
906 | [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit", | |
907 | [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit", | |
792d48b4 | 908 | [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack", |
626a6b78 WN |
909 | [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite", |
910 | [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite", | |
dd60fba7 | 911 | [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", |
17cb5f84 WN |
912 | }; |
913 | ||
1669e509 WN |
914 | static bool config_term_shrinked; |
915 | ||
916 | static bool | |
917 | config_term_avail(int term_type, struct parse_events_error *err) | |
918 | { | |
919 | if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) { | |
920 | err->str = strdup("Invalid term_type"); | |
921 | return false; | |
922 | } | |
923 | if (!config_term_shrinked) | |
924 | return true; | |
925 | ||
926 | switch (term_type) { | |
927 | case PARSE_EVENTS__TERM_TYPE_CONFIG: | |
928 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
929 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
930 | case PARSE_EVENTS__TERM_TYPE_NAME: | |
06835545 | 931 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1669e509 WN |
932 | return true; |
933 | default: | |
934 | if (!err) | |
935 | return false; | |
936 | ||
937 | /* term_type is validated so indexing is safe */ | |
938 | if (asprintf(&err->str, "'%s' is not usable in 'perf stat'", | |
939 | config_term_names[term_type]) < 0) | |
940 | err->str = NULL; | |
941 | return false; | |
942 | } | |
943 | } | |
944 | ||
945 | void parse_events__shrink_config_terms(void) | |
946 | { | |
947 | config_term_shrinked = true; | |
948 | } | |
949 | ||
0b8891a8 HK |
950 | static int config_term_common(struct perf_event_attr *attr, |
951 | struct parse_events_term *term, | |
952 | struct parse_events_error *err) | |
8f707d84 | 953 | { |
3b0e371c JO |
954 | #define CHECK_TYPE_VAL(type) \ |
955 | do { \ | |
956 | if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \ | |
957 | return -EINVAL; \ | |
16fa7e82 JO |
958 | } while (0) |
959 | ||
960 | switch (term->type_term) { | |
8f707d84 | 961 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 962 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
963 | attr->config = term->val.num; |
964 | break; | |
965 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 966 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
967 | attr->config1 = term->val.num; |
968 | break; | |
969 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 970 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
971 | attr->config2 = term->val.num; |
972 | break; | |
973 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 974 | CHECK_TYPE_VAL(NUM); |
8f707d84 | 975 | break; |
09af2a55 NK |
976 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
977 | CHECK_TYPE_VAL(NUM); | |
978 | break; | |
8f707d84 | 979 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
ac12f676 AK |
980 | CHECK_TYPE_VAL(STR); |
981 | if (strcmp(term->val.str, "no") && | |
982 | parse_branch_str(term->val.str, &attr->branch_sample_type)) { | |
983 | err->str = strdup("invalid branch sample type"); | |
984 | err->idx = term->err_val; | |
985 | return -EINVAL; | |
986 | } | |
8f707d84 | 987 | break; |
32067712 KL |
988 | case PARSE_EVENTS__TERM_TYPE_TIME: |
989 | CHECK_TYPE_VAL(NUM); | |
990 | if (term->val.num > 1) { | |
991 | err->str = strdup("expected 0 or 1"); | |
992 | err->idx = term->err_val; | |
993 | return -EINVAL; | |
994 | } | |
995 | break; | |
d457c963 KL |
996 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
997 | CHECK_TYPE_VAL(STR); | |
998 | break; | |
999 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
1000 | CHECK_TYPE_VAL(NUM); | |
1001 | break; | |
374ce938 WN |
1002 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1003 | CHECK_TYPE_VAL(NUM); | |
1004 | break; | |
1005 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1006 | CHECK_TYPE_VAL(NUM); | |
1007 | break; | |
626a6b78 WN |
1008 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1009 | CHECK_TYPE_VAL(NUM); | |
1010 | break; | |
1011 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1012 | CHECK_TYPE_VAL(NUM); | |
1013 | break; | |
6b5fc39b JO |
1014 | case PARSE_EVENTS__TERM_TYPE_NAME: |
1015 | CHECK_TYPE_VAL(STR); | |
1016 | break; | |
792d48b4 ACM |
1017 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1018 | CHECK_TYPE_VAL(NUM); | |
1019 | break; | |
8f707d84 | 1020 | default: |
ffeb883e HK |
1021 | err->str = strdup("unknown term"); |
1022 | err->idx = term->err_term; | |
1023 | err->help = parse_events_formats_error_string(NULL); | |
8f707d84 JO |
1024 | return -EINVAL; |
1025 | } | |
16fa7e82 | 1026 | |
1669e509 WN |
1027 | /* |
1028 | * Check term availbility after basic checking so | |
1029 | * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered. | |
1030 | * | |
1031 | * If check availbility at the entry of this function, | |
1032 | * user will see "'<sysfs term>' is not usable in 'perf stat'" | |
1033 | * if an invalid config term is provided for legacy events | |
1034 | * (for example, instructions/badterm/...), which is confusing. | |
1035 | */ | |
1036 | if (!config_term_avail(term->type_term, err)) | |
1037 | return -EINVAL; | |
8f707d84 | 1038 | return 0; |
16fa7e82 | 1039 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
1040 | } |
1041 | ||
0b8891a8 HK |
1042 | static int config_term_pmu(struct perf_event_attr *attr, |
1043 | struct parse_events_term *term, | |
1044 | struct parse_events_error *err) | |
1045 | { | |
dd60fba7 MP |
1046 | if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER || |
1047 | term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG) | |
0b8891a8 HK |
1048 | /* |
1049 | * Always succeed for sysfs terms, as we dont know | |
1050 | * at this point what type they need to have. | |
1051 | */ | |
1052 | return 0; | |
1053 | else | |
1054 | return config_term_common(attr, term, err); | |
1055 | } | |
1056 | ||
e637d177 HK |
1057 | static int config_term_tracepoint(struct perf_event_attr *attr, |
1058 | struct parse_events_term *term, | |
1059 | struct parse_events_error *err) | |
1060 | { | |
1061 | switch (term->type_term) { | |
1062 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: | |
1063 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
374ce938 WN |
1064 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1065 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
792d48b4 | 1066 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
626a6b78 WN |
1067 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1068 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
e637d177 HK |
1069 | return config_term_common(attr, term, err); |
1070 | default: | |
1071 | if (err) { | |
1072 | err->idx = term->err_term; | |
1073 | err->str = strdup("unknown term"); | |
1074 | err->help = strdup("valid terms: call-graph,stack-size\n"); | |
1075 | } | |
1076 | return -EINVAL; | |
1077 | } | |
1078 | ||
1079 | return 0; | |
1080 | } | |
1081 | ||
8f707d84 | 1082 | static int config_attr(struct perf_event_attr *attr, |
3b0e371c | 1083 | struct list_head *head, |
0b8891a8 HK |
1084 | struct parse_events_error *err, |
1085 | config_term_func_t config_term) | |
8f707d84 | 1086 | { |
6cee6cd3 | 1087 | struct parse_events_term *term; |
8f707d84 JO |
1088 | |
1089 | list_for_each_entry(term, head, list) | |
3b0e371c | 1090 | if (config_term(attr, term, err)) |
8f707d84 JO |
1091 | return -EINVAL; |
1092 | ||
1093 | return 0; | |
1094 | } | |
1095 | ||
930a2e29 JO |
1096 | static int get_config_terms(struct list_head *head_config, |
1097 | struct list_head *head_terms __maybe_unused) | |
1098 | { | |
1099 | #define ADD_CONFIG_TERM(__type, __name, __val) \ | |
1100 | do { \ | |
1101 | struct perf_evsel_config_term *__t; \ | |
1102 | \ | |
1103 | __t = zalloc(sizeof(*__t)); \ | |
1104 | if (!__t) \ | |
1105 | return -ENOMEM; \ | |
1106 | \ | |
1107 | INIT_LIST_HEAD(&__t->list); \ | |
1108 | __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \ | |
1109 | __t->val.__name = __val; \ | |
1110 | list_add_tail(&__t->list, head_terms); \ | |
1111 | } while (0) | |
1112 | ||
1113 | struct parse_events_term *term; | |
1114 | ||
1115 | list_for_each_entry(term, head_config, list) { | |
1116 | switch (term->type_term) { | |
ee4c7588 JO |
1117 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1118 | ADD_CONFIG_TERM(PERIOD, period, term->val.num); | |
32067712 | 1119 | break; |
09af2a55 NK |
1120 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
1121 | ADD_CONFIG_TERM(FREQ, freq, term->val.num); | |
1122 | break; | |
32067712 KL |
1123 | case PARSE_EVENTS__TERM_TYPE_TIME: |
1124 | ADD_CONFIG_TERM(TIME, time, term->val.num); | |
1125 | break; | |
d457c963 KL |
1126 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1127 | ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str); | |
1128 | break; | |
ac12f676 AK |
1129 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
1130 | ADD_CONFIG_TERM(BRANCH, branch, term->val.str); | |
1131 | break; | |
d457c963 KL |
1132 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: |
1133 | ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num); | |
1134 | break; | |
374ce938 WN |
1135 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1136 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0); | |
1137 | break; | |
1138 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1139 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1); | |
1140 | break; | |
792d48b4 ACM |
1141 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1142 | ADD_CONFIG_TERM(MAX_STACK, max_stack, term->val.num); | |
1143 | break; | |
626a6b78 WN |
1144 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1145 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 1 : 0); | |
1146 | break; | |
1147 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1148 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 0 : 1); | |
1149 | break; | |
dd60fba7 MP |
1150 | case PARSE_EVENTS__TERM_TYPE_DRV_CFG: |
1151 | ADD_CONFIG_TERM(DRV_CFG, drv_cfg, term->val.str); | |
1152 | break; | |
930a2e29 JO |
1153 | default: |
1154 | break; | |
1155 | } | |
1156 | } | |
1157 | #undef ADD_EVSEL_CONFIG | |
1158 | return 0; | |
1159 | } | |
1160 | ||
e637d177 | 1161 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 1162 | const char *sys, const char *event, |
272ed29a | 1163 | struct parse_events_error *err, |
e637d177 HK |
1164 | struct list_head *head_config) |
1165 | { | |
1166 | if (head_config) { | |
1167 | struct perf_event_attr attr; | |
1168 | ||
272ed29a | 1169 | if (config_attr(&attr, head_config, err, |
e637d177 HK |
1170 | config_term_tracepoint)) |
1171 | return -EINVAL; | |
1172 | } | |
1173 | ||
1174 | if (strpbrk(sys, "*?")) | |
1175 | return add_tracepoint_multi_sys(list, idx, sys, event, | |
272ed29a | 1176 | err, head_config); |
e637d177 HK |
1177 | else |
1178 | return add_tracepoint_event(list, idx, sys, event, | |
272ed29a | 1179 | err, head_config); |
e637d177 HK |
1180 | } |
1181 | ||
87d650be JO |
1182 | int parse_events_add_numeric(struct parse_events_evlist *data, |
1183 | struct list_head *list, | |
b527bab5 | 1184 | u32 type, u64 config, |
8f707d84 | 1185 | struct list_head *head_config) |
8ad8db37 | 1186 | { |
89812fc8 | 1187 | struct perf_event_attr attr; |
930a2e29 | 1188 | LIST_HEAD(config_terms); |
61c45981 | 1189 | |
89812fc8 JO |
1190 | memset(&attr, 0, sizeof(attr)); |
1191 | attr.type = type; | |
1192 | attr.config = config; | |
8f707d84 | 1193 | |
930a2e29 | 1194 | if (head_config) { |
0b8891a8 HK |
1195 | if (config_attr(&attr, head_config, data->error, |
1196 | config_term_common)) | |
930a2e29 JO |
1197 | return -EINVAL; |
1198 | ||
1199 | if (get_config_terms(head_config, &config_terms)) | |
1200 | return -ENOMEM; | |
1201 | } | |
8f707d84 | 1202 | |
10bf358a WN |
1203 | return add_event(list, &data->idx, &attr, |
1204 | get_config_name(head_config), &config_terms); | |
61c45981 | 1205 | } |
8ad8db37 | 1206 | |
36adec85 JO |
1207 | int parse_events_add_pmu(struct parse_events_evlist *data, |
1208 | struct list_head *list, char *name, | |
1209 | struct list_head *head_config) | |
5f537a26 JO |
1210 | { |
1211 | struct perf_event_attr attr; | |
46441bdc | 1212 | struct perf_pmu_info info; |
5f537a26 | 1213 | struct perf_pmu *pmu; |
410136f5 | 1214 | struct perf_evsel *evsel; |
930a2e29 | 1215 | LIST_HEAD(config_terms); |
5f537a26 JO |
1216 | |
1217 | pmu = perf_pmu__find(name); | |
1218 | if (!pmu) | |
1219 | return -EINVAL; | |
1220 | ||
dc0a6202 AH |
1221 | if (pmu->default_config) { |
1222 | memcpy(&attr, pmu->default_config, | |
1223 | sizeof(struct perf_event_attr)); | |
1224 | } else { | |
1225 | memset(&attr, 0, sizeof(attr)); | |
1226 | } | |
5f537a26 | 1227 | |
ad962273 AH |
1228 | if (!head_config) { |
1229 | attr.type = pmu->type; | |
930a2e29 | 1230 | evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL); |
ad962273 AH |
1231 | return evsel ? 0 : -ENOMEM; |
1232 | } | |
1233 | ||
46441bdc | 1234 | if (perf_pmu__check_alias(pmu, head_config, &info)) |
a6146d50 ZY |
1235 | return -EINVAL; |
1236 | ||
5f537a26 JO |
1237 | /* |
1238 | * Configure hardcoded terms first, no need to check | |
1239 | * return value when called with fail == 0 ;) | |
1240 | */ | |
0b8891a8 | 1241 | if (config_attr(&attr, head_config, data->error, config_term_pmu)) |
c056ba6a | 1242 | return -EINVAL; |
5f537a26 | 1243 | |
930a2e29 JO |
1244 | if (get_config_terms(head_config, &config_terms)) |
1245 | return -ENOMEM; | |
1246 | ||
e64b020b | 1247 | if (perf_pmu__config(pmu, &attr, head_config, data->error)) |
5f537a26 JO |
1248 | return -EINVAL; |
1249 | ||
36adec85 | 1250 | evsel = __add_event(list, &data->idx, &attr, |
e814fddd | 1251 | get_config_name(head_config), pmu->cpus, |
930a2e29 | 1252 | &config_terms); |
410136f5 | 1253 | if (evsel) { |
46441bdc MF |
1254 | evsel->unit = info.unit; |
1255 | evsel->scale = info.scale; | |
044330c1 | 1256 | evsel->per_pkg = info.per_pkg; |
1d9e446b | 1257 | evsel->snapshot = info.snapshot; |
410136f5 SE |
1258 | } |
1259 | ||
1260 | return evsel ? 0 : -ENOMEM; | |
5f537a26 JO |
1261 | } |
1262 | ||
2073ad33 AK |
1263 | int parse_events_multi_pmu_add(struct parse_events_evlist *data, |
1264 | char *str, struct list_head **listp) | |
1265 | { | |
1266 | struct list_head *head; | |
1267 | struct parse_events_term *term; | |
1268 | struct list_head *list; | |
1269 | struct perf_pmu *pmu = NULL; | |
1270 | int ok = 0; | |
1271 | ||
1272 | *listp = NULL; | |
1273 | /* Add it for all PMUs that support the alias */ | |
1274 | list = malloc(sizeof(struct list_head)); | |
1275 | if (!list) | |
1276 | return -1; | |
1277 | INIT_LIST_HEAD(list); | |
1278 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1279 | struct perf_pmu_alias *alias; | |
1280 | ||
1281 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1282 | if (!strcasecmp(alias->name, str)) { | |
1283 | head = malloc(sizeof(struct list_head)); | |
1284 | if (!head) | |
1285 | return -1; | |
1286 | INIT_LIST_HEAD(head); | |
1287 | if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, | |
1288 | str, 1, false, &str, NULL) < 0) | |
1289 | return -1; | |
1290 | list_add_tail(&term->list, head); | |
1291 | ||
1292 | if (!parse_events_add_pmu(data, list, | |
1293 | pmu->name, head)) { | |
1294 | pr_debug("%s -> %s/%s/\n", str, | |
1295 | pmu->name, alias->str); | |
1296 | ok++; | |
1297 | } | |
1298 | ||
1299 | parse_events_terms__delete(head); | |
1300 | } | |
1301 | } | |
1302 | } | |
1303 | if (!ok) | |
1304 | return -1; | |
1305 | *listp = list; | |
1306 | return 0; | |
1307 | } | |
1308 | ||
6a4bb04c JO |
1309 | int parse_events__modifier_group(struct list_head *list, |
1310 | char *event_mod) | |
89efb029 | 1311 | { |
6a4bb04c JO |
1312 | return parse_events__modifier_event(list, event_mod, true); |
1313 | } | |
1314 | ||
63dab225 | 1315 | void parse_events__set_leader(char *name, struct list_head *list) |
6a4bb04c JO |
1316 | { |
1317 | struct perf_evsel *leader; | |
1318 | ||
854f7363 WN |
1319 | if (list_empty(list)) { |
1320 | WARN_ONCE(true, "WARNING: failed to set leader: empty list"); | |
1321 | return; | |
1322 | } | |
1323 | ||
63dab225 ACM |
1324 | __perf_evlist__set_leader(list); |
1325 | leader = list_entry(list->next, struct perf_evsel, node); | |
6a4bb04c | 1326 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
1327 | } |
1328 | ||
c5cd8ac0 | 1329 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
1330 | void parse_events_update_lists(struct list_head *list_event, |
1331 | struct list_head *list_all) | |
1332 | { | |
1333 | /* | |
1334 | * Called for single event definition. Update the | |
89efb029 | 1335 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
1336 | * list, for next event definition. |
1337 | */ | |
1338 | list_splice_tail(list_event, list_all); | |
b847cbdc | 1339 | free(list_event); |
5d7be90e JO |
1340 | } |
1341 | ||
f5b1135b JO |
1342 | struct event_modifier { |
1343 | int eu; | |
1344 | int ek; | |
1345 | int eh; | |
1346 | int eH; | |
1347 | int eG; | |
a1e12da4 | 1348 | int eI; |
f5b1135b | 1349 | int precise; |
7f94af7a | 1350 | int precise_max; |
f5b1135b | 1351 | int exclude_GH; |
3c176311 | 1352 | int sample_read; |
e9a7c414 | 1353 | int pinned; |
f5b1135b JO |
1354 | }; |
1355 | ||
1356 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
1357 | struct perf_evsel *evsel) | |
61c45981 | 1358 | { |
f5b1135b JO |
1359 | int eu = evsel ? evsel->attr.exclude_user : 0; |
1360 | int ek = evsel ? evsel->attr.exclude_kernel : 0; | |
1361 | int eh = evsel ? evsel->attr.exclude_hv : 0; | |
1362 | int eH = evsel ? evsel->attr.exclude_host : 0; | |
1363 | int eG = evsel ? evsel->attr.exclude_guest : 0; | |
a1e12da4 | 1364 | int eI = evsel ? evsel->attr.exclude_idle : 0; |
f5b1135b | 1365 | int precise = evsel ? evsel->attr.precise_ip : 0; |
7f94af7a | 1366 | int precise_max = 0; |
3c176311 | 1367 | int sample_read = 0; |
e9a7c414 | 1368 | int pinned = evsel ? evsel->attr.pinned : 0; |
a21ca2ca | 1369 | |
f5b1135b JO |
1370 | int exclude = eu | ek | eh; |
1371 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
1372 | ||
f5b1135b | 1373 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 1374 | |
61c45981 | 1375 | while (*str) { |
ab608344 PZ |
1376 | if (*str == 'u') { |
1377 | if (!exclude) | |
1378 | exclude = eu = ek = eh = 1; | |
61c45981 | 1379 | eu = 0; |
ab608344 PZ |
1380 | } else if (*str == 'k') { |
1381 | if (!exclude) | |
1382 | exclude = eu = ek = eh = 1; | |
61c45981 | 1383 | ek = 0; |
ab608344 PZ |
1384 | } else if (*str == 'h') { |
1385 | if (!exclude) | |
1386 | exclude = eu = ek = eh = 1; | |
61c45981 | 1387 | eh = 0; |
99320cc8 JR |
1388 | } else if (*str == 'G') { |
1389 | if (!exclude_GH) | |
1390 | exclude_GH = eG = eH = 1; | |
1391 | eG = 0; | |
1392 | } else if (*str == 'H') { | |
1393 | if (!exclude_GH) | |
1394 | exclude_GH = eG = eH = 1; | |
1395 | eH = 0; | |
a1e12da4 JO |
1396 | } else if (*str == 'I') { |
1397 | eI = 1; | |
ab608344 PZ |
1398 | } else if (*str == 'p') { |
1399 | precise++; | |
1342798c DA |
1400 | /* use of precise requires exclude_guest */ |
1401 | if (!exclude_GH) | |
1402 | eG = 1; | |
7f94af7a JO |
1403 | } else if (*str == 'P') { |
1404 | precise_max = 1; | |
3c176311 JO |
1405 | } else if (*str == 'S') { |
1406 | sample_read = 1; | |
e9a7c414 ME |
1407 | } else if (*str == 'D') { |
1408 | pinned = 1; | |
ab608344 | 1409 | } else |
61c45981 | 1410 | break; |
ab608344 | 1411 | |
61c45981 | 1412 | ++str; |
5242519b | 1413 | } |
ceb53fbf | 1414 | |
89812fc8 JO |
1415 | /* |
1416 | * precise ip: | |
1417 | * | |
1418 | * 0 - SAMPLE_IP can have arbitrary skid | |
1419 | * 1 - SAMPLE_IP must have constant skid | |
1420 | * 2 - SAMPLE_IP requested to have 0 skid | |
1421 | * 3 - SAMPLE_IP must have 0 skid | |
1422 | * | |
1423 | * See also PERF_RECORD_MISC_EXACT_IP | |
1424 | */ | |
1425 | if (precise > 3) | |
1426 | return -EINVAL; | |
ceb53fbf | 1427 | |
f5b1135b JO |
1428 | mod->eu = eu; |
1429 | mod->ek = ek; | |
1430 | mod->eh = eh; | |
1431 | mod->eH = eH; | |
1432 | mod->eG = eG; | |
a1e12da4 | 1433 | mod->eI = eI; |
f5b1135b | 1434 | mod->precise = precise; |
7f94af7a | 1435 | mod->precise_max = precise_max; |
f5b1135b | 1436 | mod->exclude_GH = exclude_GH; |
3c176311 | 1437 | mod->sample_read = sample_read; |
e9a7c414 ME |
1438 | mod->pinned = pinned; |
1439 | ||
f5b1135b JO |
1440 | return 0; |
1441 | } | |
1442 | ||
534123f4 JO |
1443 | /* |
1444 | * Basic modifier sanity check to validate it contains only one | |
1445 | * instance of any modifier (apart from 'p') present. | |
1446 | */ | |
1447 | static int check_modifier(char *str) | |
1448 | { | |
1449 | char *p = str; | |
1450 | ||
1451 | /* The sizeof includes 0 byte as well. */ | |
7f94af7a | 1452 | if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1)) |
534123f4 JO |
1453 | return -1; |
1454 | ||
1455 | while (*p) { | |
1456 | if (*p != 'p' && strchr(p + 1, *p)) | |
1457 | return -1; | |
1458 | p++; | |
1459 | } | |
1460 | ||
1461 | return 0; | |
1462 | } | |
1463 | ||
f5b1135b JO |
1464 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
1465 | { | |
1466 | struct perf_evsel *evsel; | |
1467 | struct event_modifier mod; | |
1468 | ||
1469 | if (str == NULL) | |
1470 | return 0; | |
1471 | ||
534123f4 JO |
1472 | if (check_modifier(str)) |
1473 | return -EINVAL; | |
1474 | ||
f5b1135b JO |
1475 | if (!add && get_event_modifier(&mod, str, NULL)) |
1476 | return -EINVAL; | |
1477 | ||
e5cadb93 | 1478 | __evlist__for_each_entry(list, evsel) { |
f5b1135b JO |
1479 | if (add && get_event_modifier(&mod, str, evsel)) |
1480 | return -EINVAL; | |
1481 | ||
1482 | evsel->attr.exclude_user = mod.eu; | |
1483 | evsel->attr.exclude_kernel = mod.ek; | |
1484 | evsel->attr.exclude_hv = mod.eh; | |
1485 | evsel->attr.precise_ip = mod.precise; | |
1486 | evsel->attr.exclude_host = mod.eH; | |
1487 | evsel->attr.exclude_guest = mod.eG; | |
a1e12da4 | 1488 | evsel->attr.exclude_idle = mod.eI; |
f5b1135b | 1489 | evsel->exclude_GH = mod.exclude_GH; |
3c176311 | 1490 | evsel->sample_read = mod.sample_read; |
7f94af7a | 1491 | evsel->precise_max = mod.precise_max; |
e9a7c414 ME |
1492 | |
1493 | if (perf_evsel__is_group_leader(evsel)) | |
1494 | evsel->attr.pinned = mod.pinned; | |
89812fc8 | 1495 | } |
ceb53fbf | 1496 | |
61c45981 PM |
1497 | return 0; |
1498 | } | |
8ad8db37 | 1499 | |
ac2ba9f3 RR |
1500 | int parse_events_name(struct list_head *list, char *name) |
1501 | { | |
1502 | struct perf_evsel *evsel; | |
1503 | ||
e5cadb93 | 1504 | __evlist__for_each_entry(list, evsel) { |
ac2ba9f3 RR |
1505 | if (!evsel->name) |
1506 | evsel->name = strdup(name); | |
1507 | } | |
1508 | ||
1509 | return 0; | |
1510 | } | |
1511 | ||
dcb4e102 KL |
1512 | static int |
1513 | comp_pmu(const void *p1, const void *p2) | |
1514 | { | |
1515 | struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1; | |
1516 | struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2; | |
1517 | ||
e312bcf1 | 1518 | return strcasecmp(pmu1->symbol, pmu2->symbol); |
dcb4e102 KL |
1519 | } |
1520 | ||
1521 | static void perf_pmu__parse_cleanup(void) | |
1522 | { | |
1523 | if (perf_pmu_events_list_num > 0) { | |
1524 | struct perf_pmu_event_symbol *p; | |
1525 | int i; | |
1526 | ||
1527 | for (i = 0; i < perf_pmu_events_list_num; i++) { | |
1528 | p = perf_pmu_events_list + i; | |
360e071b | 1529 | zfree(&p->symbol); |
dcb4e102 | 1530 | } |
506fde11 | 1531 | zfree(&perf_pmu_events_list); |
dcb4e102 KL |
1532 | perf_pmu_events_list_num = 0; |
1533 | } | |
1534 | } | |
1535 | ||
1536 | #define SET_SYMBOL(str, stype) \ | |
1537 | do { \ | |
1538 | p->symbol = str; \ | |
1539 | if (!p->symbol) \ | |
1540 | goto err; \ | |
1541 | p->type = stype; \ | |
1542 | } while (0) | |
1543 | ||
1544 | /* | |
1545 | * Read the pmu events list from sysfs | |
1546 | * Save it into perf_pmu_events_list | |
1547 | */ | |
1548 | static void perf_pmu__parse_init(void) | |
1549 | { | |
1550 | ||
1551 | struct perf_pmu *pmu = NULL; | |
1552 | struct perf_pmu_alias *alias; | |
1553 | int len = 0; | |
1554 | ||
231bb2aa AK |
1555 | pmu = NULL; |
1556 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1557 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1558 | if (strchr(alias->name, '-')) | |
1559 | len++; | |
1560 | len++; | |
1561 | } | |
1562 | } | |
1563 | ||
1564 | if (len == 0) { | |
dcb4e102 KL |
1565 | perf_pmu_events_list_num = -1; |
1566 | return; | |
1567 | } | |
dcb4e102 KL |
1568 | perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len); |
1569 | if (!perf_pmu_events_list) | |
1570 | return; | |
1571 | perf_pmu_events_list_num = len; | |
1572 | ||
1573 | len = 0; | |
231bb2aa AK |
1574 | pmu = NULL; |
1575 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1576 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1577 | struct perf_pmu_event_symbol *p = perf_pmu_events_list + len; | |
1578 | char *tmp = strchr(alias->name, '-'); | |
1579 | ||
1580 | if (tmp != NULL) { | |
1581 | SET_SYMBOL(strndup(alias->name, tmp - alias->name), | |
1582 | PMU_EVENT_SYMBOL_PREFIX); | |
1583 | p++; | |
1584 | SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX); | |
1585 | len += 2; | |
1586 | } else { | |
1587 | SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL); | |
1588 | len++; | |
1589 | } | |
dcb4e102 KL |
1590 | } |
1591 | } | |
1592 | qsort(perf_pmu_events_list, len, | |
1593 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
1594 | ||
1595 | return; | |
1596 | err: | |
1597 | perf_pmu__parse_cleanup(); | |
1598 | } | |
1599 | ||
1600 | enum perf_pmu_event_symbol_type | |
1601 | perf_pmu__parse_check(const char *name) | |
1602 | { | |
1603 | struct perf_pmu_event_symbol p, *r; | |
1604 | ||
1605 | /* scan kernel pmu events from sysfs if needed */ | |
1606 | if (perf_pmu_events_list_num == 0) | |
1607 | perf_pmu__parse_init(); | |
1608 | /* | |
1609 | * name "cpu" could be prefix of cpu-cycles or cpu// events. | |
1610 | * cpu-cycles has been handled by hardcode. | |
1611 | * So it must be cpu// events, not kernel pmu event. | |
1612 | */ | |
1613 | if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu")) | |
1614 | return PMU_EVENT_SYMBOL_ERR; | |
1615 | ||
1616 | p.symbol = strdup(name); | |
1617 | r = bsearch(&p, perf_pmu_events_list, | |
1618 | (size_t) perf_pmu_events_list_num, | |
1619 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
360e071b | 1620 | zfree(&p.symbol); |
dcb4e102 KL |
1621 | return r ? r->type : PMU_EVENT_SYMBOL_ERR; |
1622 | } | |
1623 | ||
90e2b22d | 1624 | static int parse_events__scanner(const char *str, void *data, int start_token) |
61c45981 | 1625 | { |
89812fc8 | 1626 | YY_BUFFER_STATE buffer; |
ac20de6f | 1627 | void *scanner; |
46010ab2 | 1628 | int ret; |
bcd3279f | 1629 | |
90e2b22d | 1630 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
1631 | if (ret) |
1632 | return ret; | |
1633 | ||
1634 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 1635 | |
82ba1f2f JO |
1636 | #ifdef PARSER_DEBUG |
1637 | parse_events_debug = 1; | |
1638 | #endif | |
ac20de6f ZY |
1639 | ret = parse_events_parse(data, scanner); |
1640 | ||
1641 | parse_events__flush_buffer(buffer, scanner); | |
1642 | parse_events__delete_buffer(buffer, scanner); | |
1643 | parse_events_lex_destroy(scanner); | |
1644 | return ret; | |
1645 | } | |
bcd3279f | 1646 | |
90e2b22d JO |
1647 | /* |
1648 | * parse event config string, return a list of event terms. | |
1649 | */ | |
1650 | int parse_events_terms(struct list_head *terms, const char *str) | |
1651 | { | |
23b6339b | 1652 | struct parse_events_terms data = { |
90e2b22d JO |
1653 | .terms = NULL, |
1654 | }; | |
1655 | int ret; | |
1656 | ||
1657 | ret = parse_events__scanner(str, &data, PE_START_TERMS); | |
1658 | if (!ret) { | |
1659 | list_splice(data.terms, terms); | |
74cf249d | 1660 | zfree(&data.terms); |
90e2b22d JO |
1661 | return 0; |
1662 | } | |
1663 | ||
2146afc6 | 1664 | parse_events_terms__delete(data.terms); |
90e2b22d JO |
1665 | return ret; |
1666 | } | |
1667 | ||
b39b8393 JO |
1668 | int parse_events(struct perf_evlist *evlist, const char *str, |
1669 | struct parse_events_error *err) | |
ac20de6f | 1670 | { |
23b6339b | 1671 | struct parse_events_evlist data = { |
7630b3e2 WN |
1672 | .list = LIST_HEAD_INIT(data.list), |
1673 | .idx = evlist->nr_entries, | |
1674 | .error = err, | |
1675 | .evlist = evlist, | |
ac20de6f ZY |
1676 | }; |
1677 | int ret; | |
bcd3279f | 1678 | |
90e2b22d | 1679 | ret = parse_events__scanner(str, &data, PE_START_EVENTS); |
dcb4e102 | 1680 | perf_pmu__parse_cleanup(); |
89812fc8 | 1681 | if (!ret) { |
15bfd2cc WN |
1682 | struct perf_evsel *last; |
1683 | ||
854f7363 WN |
1684 | if (list_empty(&data.list)) { |
1685 | WARN_ONCE(true, "WARNING: event parser found nothing"); | |
1686 | return -1; | |
1687 | } | |
1688 | ||
f114d6ef | 1689 | perf_evlist__splice_list_tail(evlist, &data.list); |
97f63e4a | 1690 | evlist->nr_groups += data.nr_groups; |
15bfd2cc WN |
1691 | last = perf_evlist__last(evlist); |
1692 | last->cmdline_group_boundary = true; | |
1693 | ||
89812fc8 JO |
1694 | return 0; |
1695 | } | |
bcd3279f | 1696 | |
5d7be90e JO |
1697 | /* |
1698 | * There are 2 users - builtin-record and builtin-test objects. | |
1699 | * Both call perf_evlist__delete in case of error, so we dont | |
1700 | * need to bother. | |
1701 | */ | |
bcd3279f | 1702 | return ret; |
8ad8db37 IM |
1703 | } |
1704 | ||
b39b8393 JO |
1705 | #define MAX_WIDTH 1000 |
1706 | static int get_term_width(void) | |
1707 | { | |
1708 | struct winsize ws; | |
1709 | ||
1710 | get_term_dimensions(&ws); | |
1711 | return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col; | |
1712 | } | |
1713 | ||
1714 | static void parse_events_print_error(struct parse_events_error *err, | |
1715 | const char *event) | |
1716 | { | |
1717 | const char *str = "invalid or unsupported event: "; | |
1718 | char _buf[MAX_WIDTH]; | |
1719 | char *buf = (char *) event; | |
1720 | int idx = 0; | |
1721 | ||
1722 | if (err->str) { | |
1723 | /* -2 for extra '' in the final fprintf */ | |
1724 | int width = get_term_width() - 2; | |
1725 | int len_event = strlen(event); | |
1726 | int len_str, max_len, cut = 0; | |
1727 | ||
1728 | /* | |
1729 | * Maximum error index indent, we will cut | |
1730 | * the event string if it's bigger. | |
1731 | */ | |
141b2d31 | 1732 | int max_err_idx = 13; |
b39b8393 JO |
1733 | |
1734 | /* | |
1735 | * Let's be specific with the message when | |
1736 | * we have the precise error. | |
1737 | */ | |
1738 | str = "event syntax error: "; | |
1739 | len_str = strlen(str); | |
1740 | max_len = width - len_str; | |
1741 | ||
1742 | buf = _buf; | |
1743 | ||
bd1a0be5 | 1744 | /* We're cutting from the beginning. */ |
b39b8393 JO |
1745 | if (err->idx > max_err_idx) |
1746 | cut = err->idx - max_err_idx; | |
1747 | ||
1748 | strncpy(buf, event + cut, max_len); | |
1749 | ||
1750 | /* Mark cut parts with '..' on both sides. */ | |
1751 | if (cut) | |
1752 | buf[0] = buf[1] = '.'; | |
1753 | ||
1754 | if ((len_event - cut) > max_len) { | |
1755 | buf[max_len - 1] = buf[max_len - 2] = '.'; | |
1756 | buf[max_len] = 0; | |
1757 | } | |
1758 | ||
1759 | idx = len_str + err->idx - cut; | |
1760 | } | |
1761 | ||
1762 | fprintf(stderr, "%s'%s'\n", str, buf); | |
1763 | if (idx) { | |
1764 | fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str); | |
1765 | if (err->help) | |
1766 | fprintf(stderr, "\n%s\n", err->help); | |
360e071b TS |
1767 | zfree(&err->str); |
1768 | zfree(&err->help); | |
b39b8393 JO |
1769 | } |
1770 | ||
1771 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); | |
1772 | } | |
1773 | ||
1774 | #undef MAX_WIDTH | |
1775 | ||
f120f9d5 | 1776 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 1777 | int unset __maybe_unused) |
f120f9d5 JO |
1778 | { |
1779 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
b39b8393 JO |
1780 | struct parse_events_error err = { .idx = 0, }; |
1781 | int ret = parse_events(evlist, str, &err); | |
1782 | ||
1783 | if (ret) | |
1784 | parse_events_print_error(&err, str); | |
9175ce1f | 1785 | |
9175ce1f | 1786 | return ret; |
f120f9d5 JO |
1787 | } |
1788 | ||
4ba1faa1 WN |
1789 | static int |
1790 | foreach_evsel_in_last_glob(struct perf_evlist *evlist, | |
1791 | int (*func)(struct perf_evsel *evsel, | |
1792 | const void *arg), | |
1793 | const void *arg) | |
c171b552 | 1794 | { |
69aad6f1 | 1795 | struct perf_evsel *last = NULL; |
4ba1faa1 | 1796 | int err; |
c171b552 | 1797 | |
854f7363 WN |
1798 | /* |
1799 | * Don't return when list_empty, give func a chance to report | |
1800 | * error when it found last == NULL. | |
1801 | * | |
1802 | * So no need to WARN here, let *func do this. | |
1803 | */ | |
361c99a6 | 1804 | if (evlist->nr_entries > 0) |
0c21f736 | 1805 | last = perf_evlist__last(evlist); |
69aad6f1 | 1806 | |
15bfd2cc | 1807 | do { |
4ba1faa1 WN |
1808 | err = (*func)(last, arg); |
1809 | if (err) | |
15bfd2cc | 1810 | return -1; |
4ba1faa1 WN |
1811 | if (!last) |
1812 | return 0; | |
15bfd2cc WN |
1813 | |
1814 | if (last->node.prev == &evlist->entries) | |
1815 | return 0; | |
1816 | last = list_entry(last->node.prev, struct perf_evsel, node); | |
1817 | } while (!last->cmdline_group_boundary); | |
c171b552 LZ |
1818 | |
1819 | return 0; | |
1820 | } | |
1821 | ||
4ba1faa1 WN |
1822 | static int set_filter(struct perf_evsel *evsel, const void *arg) |
1823 | { | |
1824 | const char *str = arg; | |
1e857484 MP |
1825 | bool found = false; |
1826 | int nr_addr_filters = 0; | |
1827 | struct perf_pmu *pmu = NULL; | |
4ba1faa1 | 1828 | |
1e857484 MP |
1829 | if (evsel == NULL) |
1830 | goto err; | |
1831 | ||
1832 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { | |
1833 | if (perf_evsel__append_tp_filter(evsel, str) < 0) { | |
1834 | fprintf(stderr, | |
1835 | "not enough memory to hold filter string\n"); | |
1836 | return -1; | |
1837 | } | |
1838 | ||
1839 | return 0; | |
4ba1faa1 WN |
1840 | } |
1841 | ||
1e857484 MP |
1842 | while ((pmu = perf_pmu__scan(pmu)) != NULL) |
1843 | if (pmu->type == evsel->attr.type) { | |
1844 | found = true; | |
1845 | break; | |
1846 | } | |
1847 | ||
1848 | if (found) | |
1849 | perf_pmu__scan_file(pmu, "nr_addr_filters", | |
1850 | "%d", &nr_addr_filters); | |
1851 | ||
1852 | if (!nr_addr_filters) | |
1853 | goto err; | |
1854 | ||
1855 | if (perf_evsel__append_addr_filter(evsel, str) < 0) { | |
4ba1faa1 WN |
1856 | fprintf(stderr, |
1857 | "not enough memory to hold filter string\n"); | |
1858 | return -1; | |
1859 | } | |
1860 | ||
1861 | return 0; | |
1e857484 MP |
1862 | |
1863 | err: | |
1864 | fprintf(stderr, | |
1865 | "--filter option should follow a -e tracepoint or HW tracer option\n"); | |
1866 | ||
1867 | return -1; | |
4ba1faa1 WN |
1868 | } |
1869 | ||
1870 | int parse_filter(const struct option *opt, const char *str, | |
1871 | int unset __maybe_unused) | |
1872 | { | |
1873 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
1874 | ||
1875 | return foreach_evsel_in_last_glob(evlist, set_filter, | |
1876 | (const void *)str); | |
1877 | } | |
1878 | ||
1879 | static int add_exclude_perf_filter(struct perf_evsel *evsel, | |
1880 | const void *arg __maybe_unused) | |
1881 | { | |
1882 | char new_filter[64]; | |
1883 | ||
1884 | if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) { | |
1885 | fprintf(stderr, | |
1886 | "--exclude-perf option should follow a -e tracepoint option\n"); | |
1887 | return -1; | |
1888 | } | |
1889 | ||
1890 | snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid()); | |
1891 | ||
3541c034 | 1892 | if (perf_evsel__append_tp_filter(evsel, new_filter) < 0) { |
4ba1faa1 WN |
1893 | fprintf(stderr, |
1894 | "not enough memory to hold filter string\n"); | |
1895 | return -1; | |
1896 | } | |
1897 | ||
1898 | return 0; | |
1899 | } | |
1900 | ||
1901 | int exclude_perf(const struct option *opt, | |
1902 | const char *arg __maybe_unused, | |
1903 | int unset __maybe_unused) | |
1904 | { | |
1905 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
1906 | ||
1907 | return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter, | |
1908 | NULL); | |
1909 | } | |
1910 | ||
86847b62 | 1911 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
1912 | "Hardware event", |
1913 | "Software event", | |
1914 | "Tracepoint event", | |
1915 | "Hardware cache event", | |
41bdcb23 LW |
1916 | "Raw hardware event descriptor", |
1917 | "Hardware breakpoint", | |
86847b62 TG |
1918 | }; |
1919 | ||
ab0e4800 YS |
1920 | static int cmp_string(const void *a, const void *b) |
1921 | { | |
1922 | const char * const *as = a; | |
1923 | const char * const *bs = b; | |
1924 | ||
1925 | return strcmp(*as, *bs); | |
1926 | } | |
1927 | ||
f6bdafef JB |
1928 | /* |
1929 | * Print the events from <debugfs_mount_point>/tracing/events | |
1930 | */ | |
1931 | ||
a3277d2d FW |
1932 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
1933 | bool name_only) | |
f6bdafef JB |
1934 | { |
1935 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 1936 | struct dirent *sys_dirent, *evt_dirent; |
f6bdafef | 1937 | char evt_path[MAXPATHLEN]; |
725b1368 | 1938 | char dir_path[MAXPATHLEN]; |
ab0e4800 YS |
1939 | char **evt_list = NULL; |
1940 | unsigned int evt_i = 0, evt_num = 0; | |
1941 | bool evt_num_known = false; | |
f6bdafef | 1942 | |
ab0e4800 | 1943 | restart: |
ebf294bf | 1944 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 1945 | if (!sys_dir) |
725b1368 | 1946 | return; |
6b58e7f1 | 1947 | |
ab0e4800 YS |
1948 | if (evt_num_known) { |
1949 | evt_list = zalloc(sizeof(char *) * evt_num); | |
1950 | if (!evt_list) | |
1951 | goto out_close_sys_dir; | |
1952 | } | |
1953 | ||
22a9f41b | 1954 | for_each_subsystem(sys_dir, sys_dirent) { |
48000a1a | 1955 | if (subsys_glob != NULL && |
22a9f41b | 1956 | !strglobmatch(sys_dirent->d_name, subsys_glob)) |
668b8788 | 1957 | continue; |
725b1368 | 1958 | |
ebf294bf | 1959 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 1960 | sys_dirent->d_name); |
725b1368 ED |
1961 | evt_dir = opendir(dir_path); |
1962 | if (!evt_dir) | |
6b58e7f1 | 1963 | continue; |
725b1368 | 1964 | |
22a9f41b | 1965 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
48000a1a | 1966 | if (event_glob != NULL && |
22a9f41b | 1967 | !strglobmatch(evt_dirent->d_name, event_glob)) |
668b8788 ACM |
1968 | continue; |
1969 | ||
ab0e4800 YS |
1970 | if (!evt_num_known) { |
1971 | evt_num++; | |
a3277d2d FW |
1972 | continue; |
1973 | } | |
1974 | ||
f6bdafef | 1975 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 1976 | sys_dirent->d_name, evt_dirent->d_name); |
ab0e4800 YS |
1977 | |
1978 | evt_list[evt_i] = strdup(evt_path); | |
1979 | if (evt_list[evt_i] == NULL) | |
1980 | goto out_close_evt_dir; | |
1981 | evt_i++; | |
f6bdafef JB |
1982 | } |
1983 | closedir(evt_dir); | |
1984 | } | |
f6bdafef | 1985 | closedir(sys_dir); |
ab0e4800 YS |
1986 | |
1987 | if (!evt_num_known) { | |
1988 | evt_num_known = true; | |
1989 | goto restart; | |
1990 | } | |
1991 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
1992 | evt_i = 0; | |
1993 | while (evt_i < evt_num) { | |
1994 | if (name_only) { | |
1995 | printf("%s ", evt_list[evt_i++]); | |
1996 | continue; | |
1997 | } | |
1998 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
1999 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2000 | } | |
dfc431cb | 2001 | if (evt_num && pager_in_use()) |
ab0e4800 YS |
2002 | printf("\n"); |
2003 | ||
2004 | out_free: | |
2005 | evt_num = evt_i; | |
2006 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2007 | zfree(&evt_list[evt_i]); | |
2008 | zfree(&evt_list); | |
2009 | return; | |
2010 | ||
2011 | out_close_evt_dir: | |
2012 | closedir(evt_dir); | |
2013 | out_close_sys_dir: | |
2014 | closedir(sys_dir); | |
2015 | ||
2016 | printf("FATAL: not enough memory to print %s\n", | |
2017 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2018 | if (evt_list) | |
2019 | goto out_free; | |
f6bdafef JB |
2020 | } |
2021 | ||
20c457b8 TR |
2022 | /* |
2023 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
2024 | */ | |
2025 | ||
2026 | int is_valid_tracepoint(const char *event_string) | |
2027 | { | |
2028 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 2029 | struct dirent *sys_dirent, *evt_dirent; |
20c457b8 TR |
2030 | char evt_path[MAXPATHLEN]; |
2031 | char dir_path[MAXPATHLEN]; | |
2032 | ||
ebf294bf | 2033 | sys_dir = opendir(tracing_events_path); |
20c457b8 TR |
2034 | if (!sys_dir) |
2035 | return 0; | |
2036 | ||
22a9f41b | 2037 | for_each_subsystem(sys_dir, sys_dirent) { |
20c457b8 | 2038 | |
ebf294bf | 2039 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 2040 | sys_dirent->d_name); |
20c457b8 TR |
2041 | evt_dir = opendir(dir_path); |
2042 | if (!evt_dir) | |
2043 | continue; | |
2044 | ||
22a9f41b | 2045 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
20c457b8 | 2046 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2047 | sys_dirent->d_name, evt_dirent->d_name); |
20c457b8 TR |
2048 | if (!strcmp(evt_path, event_string)) { |
2049 | closedir(evt_dir); | |
2050 | closedir(sys_dir); | |
2051 | return 1; | |
2052 | } | |
2053 | } | |
2054 | closedir(evt_dir); | |
2055 | } | |
2056 | closedir(sys_dir); | |
2057 | return 0; | |
2058 | } | |
2059 | ||
b41f1cec NK |
2060 | static bool is_event_supported(u8 type, unsigned config) |
2061 | { | |
2062 | bool ret = true; | |
88fee52e | 2063 | int open_return; |
b41f1cec NK |
2064 | struct perf_evsel *evsel; |
2065 | struct perf_event_attr attr = { | |
2066 | .type = type, | |
2067 | .config = config, | |
2068 | .disabled = 1, | |
b41f1cec | 2069 | }; |
89896051 ACM |
2070 | struct thread_map *tmap = thread_map__new_by_tid(0); |
2071 | ||
2072 | if (tmap == NULL) | |
2073 | return false; | |
b41f1cec | 2074 | |
ef503831 | 2075 | evsel = perf_evsel__new(&attr); |
b41f1cec | 2076 | if (evsel) { |
89896051 | 2077 | open_return = perf_evsel__open(evsel, NULL, tmap); |
88fee52e VW |
2078 | ret = open_return >= 0; |
2079 | ||
2080 | if (open_return == -EACCES) { | |
2081 | /* | |
2082 | * This happens if the paranoid value | |
2083 | * /proc/sys/kernel/perf_event_paranoid is set to 2 | |
2084 | * Re-run with exclude_kernel set; we don't do that | |
2085 | * by default as some ARM machines do not support it. | |
2086 | * | |
2087 | */ | |
2088 | evsel->attr.exclude_kernel = 1; | |
89896051 | 2089 | ret = perf_evsel__open(evsel, NULL, tmap) >= 0; |
88fee52e | 2090 | } |
b41f1cec NK |
2091 | perf_evsel__delete(evsel); |
2092 | } | |
2093 | ||
2094 | return ret; | |
2095 | } | |
2096 | ||
40218dae MH |
2097 | void print_sdt_events(const char *subsys_glob, const char *event_glob, |
2098 | bool name_only) | |
2099 | { | |
2100 | struct probe_cache *pcache; | |
2101 | struct probe_cache_entry *ent; | |
2102 | struct strlist *bidlist, *sdtlist; | |
2103 | struct strlist_config cfg = {.dont_dupstr = true}; | |
2104 | struct str_node *nd, *nd2; | |
2105 | char *buf, *path, *ptr = NULL; | |
2106 | bool show_detail = false; | |
2107 | int ret; | |
2108 | ||
2109 | sdtlist = strlist__new(NULL, &cfg); | |
2110 | if (!sdtlist) { | |
2111 | pr_debug("Failed to allocate new strlist for SDT\n"); | |
2112 | return; | |
2113 | } | |
2114 | bidlist = build_id_cache__list_all(true); | |
2115 | if (!bidlist) { | |
2116 | pr_debug("Failed to get buildids: %d\n", errno); | |
2117 | return; | |
2118 | } | |
2119 | strlist__for_each_entry(nd, bidlist) { | |
2120 | pcache = probe_cache__new(nd->s); | |
2121 | if (!pcache) | |
2122 | continue; | |
2123 | list_for_each_entry(ent, &pcache->entries, node) { | |
2124 | if (!ent->sdt) | |
2125 | continue; | |
2126 | if (subsys_glob && | |
2127 | !strglobmatch(ent->pev.group, subsys_glob)) | |
2128 | continue; | |
2129 | if (event_glob && | |
2130 | !strglobmatch(ent->pev.event, event_glob)) | |
2131 | continue; | |
2132 | ret = asprintf(&buf, "%s:%s@%s", ent->pev.group, | |
2133 | ent->pev.event, nd->s); | |
2134 | if (ret > 0) | |
2135 | strlist__add(sdtlist, buf); | |
2136 | } | |
2137 | probe_cache__delete(pcache); | |
2138 | } | |
2139 | strlist__delete(bidlist); | |
2140 | ||
2141 | strlist__for_each_entry(nd, sdtlist) { | |
2142 | buf = strchr(nd->s, '@'); | |
2143 | if (buf) | |
2144 | *(buf++) = '\0'; | |
2145 | if (name_only) { | |
2146 | printf("%s ", nd->s); | |
2147 | continue; | |
2148 | } | |
2149 | nd2 = strlist__next(nd); | |
2150 | if (nd2) { | |
2151 | ptr = strchr(nd2->s, '@'); | |
2152 | if (ptr) | |
2153 | *ptr = '\0'; | |
2154 | if (strcmp(nd->s, nd2->s) == 0) | |
2155 | show_detail = true; | |
2156 | } | |
2157 | if (show_detail) { | |
2158 | path = build_id_cache__origname(buf); | |
2159 | ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf); | |
2160 | if (ret > 0) { | |
2161 | printf(" %-50s [%s]\n", buf, "SDT event"); | |
2162 | free(buf); | |
2163 | } | |
2164 | } else | |
2165 | printf(" %-50s [%s]\n", nd->s, "SDT event"); | |
2166 | if (nd2) { | |
2167 | if (strcmp(nd->s, nd2->s) != 0) | |
2168 | show_detail = false; | |
2169 | if (ptr) | |
2170 | *ptr = '@'; | |
2171 | } | |
2172 | } | |
2173 | strlist__delete(sdtlist); | |
2174 | } | |
2175 | ||
a3277d2d | 2176 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 | 2177 | { |
ab0e4800 | 2178 | unsigned int type, op, i, evt_i = 0, evt_num = 0; |
0b668bc9 | 2179 | char name[64]; |
ab0e4800 YS |
2180 | char **evt_list = NULL; |
2181 | bool evt_num_known = false; | |
2182 | ||
2183 | restart: | |
2184 | if (evt_num_known) { | |
2185 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2186 | if (!evt_list) | |
2187 | goto out_enomem; | |
2188 | } | |
668b8788 ACM |
2189 | |
2190 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
2191 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
2192 | /* skip invalid cache type */ | |
0b668bc9 | 2193 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
2194 | continue; |
2195 | ||
2196 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
2197 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
2198 | name, sizeof(name)); | |
947b4ad1 | 2199 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
2200 | continue; |
2201 | ||
b41f1cec NK |
2202 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
2203 | type | (op << 8) | (i << 16))) | |
2204 | continue; | |
2205 | ||
ab0e4800 YS |
2206 | if (!evt_num_known) { |
2207 | evt_num++; | |
2208 | continue; | |
2209 | } | |
2210 | ||
2211 | evt_list[evt_i] = strdup(name); | |
2212 | if (evt_list[evt_i] == NULL) | |
2213 | goto out_enomem; | |
2214 | evt_i++; | |
668b8788 ACM |
2215 | } |
2216 | } | |
2217 | } | |
2218 | ||
ab0e4800 YS |
2219 | if (!evt_num_known) { |
2220 | evt_num_known = true; | |
2221 | goto restart; | |
2222 | } | |
2223 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2224 | evt_i = 0; | |
2225 | while (evt_i < evt_num) { | |
2226 | if (name_only) { | |
2227 | printf("%s ", evt_list[evt_i++]); | |
2228 | continue; | |
2229 | } | |
2230 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2231 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2232 | } | |
dfc431cb | 2233 | if (evt_num && pager_in_use()) |
dc098b35 | 2234 | printf("\n"); |
ab0e4800 YS |
2235 | |
2236 | out_free: | |
2237 | evt_num = evt_i; | |
2238 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2239 | zfree(&evt_list[evt_i]); | |
2240 | zfree(&evt_list); | |
2241 | return evt_num; | |
2242 | ||
2243 | out_enomem: | |
2244 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2245 | if (evt_list) | |
2246 | goto out_free; | |
2247 | return evt_num; | |
668b8788 ACM |
2248 | } |
2249 | ||
705750f2 | 2250 | void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
2251 | struct event_symbol *syms, unsigned max, |
2252 | bool name_only) | |
8ad8db37 | 2253 | { |
ab0e4800 | 2254 | unsigned int i, evt_i = 0, evt_num = 0; |
947b4ad1 | 2255 | char name[MAX_NAME_LEN]; |
ab0e4800 YS |
2256 | char **evt_list = NULL; |
2257 | bool evt_num_known = false; | |
2258 | ||
2259 | restart: | |
2260 | if (evt_num_known) { | |
2261 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2262 | if (!evt_list) | |
2263 | goto out_enomem; | |
2264 | syms -= max; | |
2265 | } | |
8ad8db37 | 2266 | |
1dc12760 | 2267 | for (i = 0; i < max; i++, syms++) { |
668b8788 | 2268 | |
e37df6c7 | 2269 | if (event_glob != NULL && syms->symbol != NULL && |
668b8788 ACM |
2270 | !(strglobmatch(syms->symbol, event_glob) || |
2271 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
2272 | continue; | |
8ad8db37 | 2273 | |
b41f1cec NK |
2274 | if (!is_event_supported(type, i)) |
2275 | continue; | |
2276 | ||
ab0e4800 YS |
2277 | if (!evt_num_known) { |
2278 | evt_num++; | |
a3277d2d FW |
2279 | continue; |
2280 | } | |
2281 | ||
ab0e4800 | 2282 | if (!name_only && strlen(syms->alias)) |
947b4ad1 | 2283 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 2284 | else |
947b4ad1 | 2285 | strncpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 2286 | |
ab0e4800 YS |
2287 | evt_list[evt_i] = strdup(name); |
2288 | if (evt_list[evt_i] == NULL) | |
2289 | goto out_enomem; | |
2290 | evt_i++; | |
8ad8db37 IM |
2291 | } |
2292 | ||
ab0e4800 YS |
2293 | if (!evt_num_known) { |
2294 | evt_num_known = true; | |
2295 | goto restart; | |
2296 | } | |
2297 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2298 | evt_i = 0; | |
2299 | while (evt_i < evt_num) { | |
2300 | if (name_only) { | |
2301 | printf("%s ", evt_list[evt_i++]); | |
2302 | continue; | |
2303 | } | |
2304 | printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); | |
2305 | } | |
dfc431cb | 2306 | if (evt_num && pager_in_use()) |
668b8788 | 2307 | printf("\n"); |
ab0e4800 YS |
2308 | |
2309 | out_free: | |
2310 | evt_num = evt_i; | |
2311 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2312 | zfree(&evt_list[evt_i]); | |
2313 | zfree(&evt_list); | |
2314 | return; | |
2315 | ||
2316 | out_enomem: | |
2317 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]); | |
2318 | if (evt_list) | |
2319 | goto out_free; | |
1dc12760 JO |
2320 | } |
2321 | ||
2322 | /* | |
2323 | * Print the help text for the event symbols: | |
2324 | */ | |
c8d6828a SB |
2325 | void print_events(const char *event_glob, bool name_only, bool quiet_flag, |
2326 | bool long_desc) | |
1dc12760 | 2327 | { |
1dc12760 | 2328 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, |
a3277d2d | 2329 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
2330 | |
2331 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 2332 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
1dc12760 | 2333 | |
a3277d2d | 2334 | print_hwcache_events(event_glob, name_only); |
668b8788 | 2335 | |
c8d6828a | 2336 | print_pmu_events(event_glob, name_only, quiet_flag, long_desc); |
dc098b35 | 2337 | |
668b8788 ACM |
2338 | if (event_glob != NULL) |
2339 | return; | |
73c24cb8 | 2340 | |
a3277d2d | 2341 | if (!name_only) { |
a3277d2d FW |
2342 | printf(" %-50s [%s]\n", |
2343 | "rNNN", | |
2344 | event_type_descriptors[PERF_TYPE_RAW]); | |
2345 | printf(" %-50s [%s]\n", | |
2346 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
2347 | event_type_descriptors[PERF_TYPE_RAW]); | |
dfc431cb ACM |
2348 | if (pager_in_use()) |
2349 | printf(" (see 'man perf-list' on how to encode it)\n\n"); | |
a3277d2d FW |
2350 | |
2351 | printf(" %-50s [%s]\n", | |
3741eb9f | 2352 | "mem:<addr>[/len][:access]", |
41bdcb23 | 2353 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
dfc431cb ACM |
2354 | if (pager_in_use()) |
2355 | printf("\n"); | |
a3277d2d | 2356 | } |
1b290d67 | 2357 | |
a3277d2d | 2358 | print_tracepoint_events(NULL, NULL, name_only); |
40218dae MH |
2359 | |
2360 | print_sdt_events(NULL, NULL, name_only); | |
8ad8db37 | 2361 | } |
8f707d84 | 2362 | |
6cee6cd3 | 2363 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 2364 | { |
16fa7e82 | 2365 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
2366 | } |
2367 | ||
67b49b38 JO |
2368 | static int new_term(struct parse_events_term **_term, |
2369 | struct parse_events_term *temp, | |
2370 | char *str, u64 num) | |
8f707d84 | 2371 | { |
6cee6cd3 | 2372 | struct parse_events_term *term; |
8f707d84 | 2373 | |
67b49b38 | 2374 | term = malloc(sizeof(*term)); |
8f707d84 JO |
2375 | if (!term) |
2376 | return -ENOMEM; | |
2377 | ||
67b49b38 | 2378 | *term = *temp; |
8f707d84 | 2379 | INIT_LIST_HEAD(&term->list); |
8f707d84 | 2380 | |
67b49b38 | 2381 | switch (term->type_val) { |
8f707d84 JO |
2382 | case PARSE_EVENTS__TERM_TYPE_NUM: |
2383 | term->val.num = num; | |
2384 | break; | |
2385 | case PARSE_EVENTS__TERM_TYPE_STR: | |
2386 | term->val.str = str; | |
2387 | break; | |
2388 | default: | |
4be8be6b | 2389 | free(term); |
8f707d84 JO |
2390 | return -EINVAL; |
2391 | } | |
2392 | ||
2393 | *_term = term; | |
2394 | return 0; | |
2395 | } | |
2396 | ||
6cee6cd3 | 2397 | int parse_events_term__num(struct parse_events_term **term, |
cecf3a2e | 2398 | int type_term, char *config, u64 num, |
99e7138e | 2399 | bool no_value, |
bb78ce7d | 2400 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2401 | { |
bb78ce7d AH |
2402 | YYLTYPE *loc_term = loc_term_; |
2403 | YYLTYPE *loc_val = loc_val_; | |
2404 | ||
67b49b38 JO |
2405 | struct parse_events_term temp = { |
2406 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
2407 | .type_term = type_term, | |
2408 | .config = config, | |
99e7138e | 2409 | .no_value = no_value, |
67b49b38 JO |
2410 | .err_term = loc_term ? loc_term->first_column : 0, |
2411 | .err_val = loc_val ? loc_val->first_column : 0, | |
2412 | }; | |
2413 | ||
2414 | return new_term(term, &temp, NULL, num); | |
16fa7e82 JO |
2415 | } |
2416 | ||
6cee6cd3 | 2417 | int parse_events_term__str(struct parse_events_term **term, |
cecf3a2e | 2418 | int type_term, char *config, char *str, |
bb78ce7d | 2419 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2420 | { |
bb78ce7d AH |
2421 | YYLTYPE *loc_term = loc_term_; |
2422 | YYLTYPE *loc_val = loc_val_; | |
2423 | ||
67b49b38 JO |
2424 | struct parse_events_term temp = { |
2425 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2426 | .type_term = type_term, | |
2427 | .config = config, | |
2428 | .err_term = loc_term ? loc_term->first_column : 0, | |
2429 | .err_val = loc_val ? loc_val->first_column : 0, | |
2430 | }; | |
2431 | ||
2432 | return new_term(term, &temp, str, 0); | |
16fa7e82 JO |
2433 | } |
2434 | ||
6cee6cd3 | 2435 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
2436 | char *config, unsigned idx) |
2437 | { | |
2438 | struct event_symbol *sym; | |
67b49b38 JO |
2439 | struct parse_events_term temp = { |
2440 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2441 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
2442 | .config = config ?: (char *) "event", | |
2443 | }; | |
1d33d6dc JO |
2444 | |
2445 | BUG_ON(idx >= PERF_COUNT_HW_MAX); | |
2446 | sym = &event_symbols_hw[idx]; | |
2447 | ||
67b49b38 | 2448 | return new_term(term, &temp, (char *) sym->symbol, 0); |
1d33d6dc JO |
2449 | } |
2450 | ||
6cee6cd3 ACM |
2451 | int parse_events_term__clone(struct parse_events_term **new, |
2452 | struct parse_events_term *term) | |
a6146d50 | 2453 | { |
67b49b38 JO |
2454 | struct parse_events_term temp = { |
2455 | .type_val = term->type_val, | |
2456 | .type_term = term->type_term, | |
2457 | .config = term->config, | |
2458 | .err_term = term->err_term, | |
2459 | .err_val = term->err_val, | |
2460 | }; | |
2461 | ||
2462 | return new_term(new, &temp, term->val.str, term->val.num); | |
a6146d50 ZY |
2463 | } |
2464 | ||
8255718f AK |
2465 | int parse_events_copy_term_list(struct list_head *old, |
2466 | struct list_head **new) | |
2467 | { | |
2468 | struct parse_events_term *term, *n; | |
2469 | int ret; | |
2470 | ||
2471 | if (!old) { | |
2472 | *new = NULL; | |
2473 | return 0; | |
2474 | } | |
2475 | ||
2476 | *new = malloc(sizeof(struct list_head)); | |
2477 | if (!*new) | |
2478 | return -ENOMEM; | |
2479 | INIT_LIST_HEAD(*new); | |
2480 | ||
2481 | list_for_each_entry (term, old, list) { | |
2482 | ret = parse_events_term__clone(&n, term); | |
2483 | if (ret) | |
2484 | return ret; | |
2485 | list_add_tail(&n->list, *new); | |
2486 | } | |
2487 | return 0; | |
2488 | } | |
2489 | ||
fc0a2c1d | 2490 | void parse_events_terms__purge(struct list_head *terms) |
8f707d84 | 2491 | { |
6cee6cd3 | 2492 | struct parse_events_term *term, *h; |
8f707d84 | 2493 | |
a8adfceb | 2494 | list_for_each_entry_safe(term, h, terms, list) { |
2d055bf2 | 2495 | if (term->array.nr_ranges) |
360e071b | 2496 | zfree(&term->array.ranges); |
a8adfceb | 2497 | list_del_init(&term->list); |
8f707d84 | 2498 | free(term); |
a8adfceb | 2499 | } |
8f707d84 | 2500 | } |
b39b8393 | 2501 | |
2146afc6 | 2502 | void parse_events_terms__delete(struct list_head *terms) |
fc0a2c1d | 2503 | { |
2146afc6 ACM |
2504 | if (!terms) |
2505 | return; | |
fc0a2c1d | 2506 | parse_events_terms__purge(terms); |
d20a5f2b | 2507 | free(terms); |
fc0a2c1d ACM |
2508 | } |
2509 | ||
2d055bf2 WN |
2510 | void parse_events__clear_array(struct parse_events_array *a) |
2511 | { | |
360e071b | 2512 | zfree(&a->ranges); |
2d055bf2 WN |
2513 | } |
2514 | ||
b39b8393 JO |
2515 | void parse_events_evlist_error(struct parse_events_evlist *data, |
2516 | int idx, const char *str) | |
2517 | { | |
2518 | struct parse_events_error *err = data->error; | |
2519 | ||
a6ced2be AH |
2520 | if (!err) |
2521 | return; | |
b39b8393 JO |
2522 | err->idx = idx; |
2523 | err->str = strdup(str); | |
2524 | WARN_ONCE(!err->str, "WARNING: failed to allocate error string"); | |
2525 | } | |
ffeb883e | 2526 | |
17cb5f84 WN |
2527 | static void config_terms_list(char *buf, size_t buf_sz) |
2528 | { | |
2529 | int i; | |
2530 | bool first = true; | |
2531 | ||
2532 | buf[0] = '\0'; | |
2533 | for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) { | |
2534 | const char *name = config_term_names[i]; | |
2535 | ||
1669e509 WN |
2536 | if (!config_term_avail(i, NULL)) |
2537 | continue; | |
17cb5f84 WN |
2538 | if (!name) |
2539 | continue; | |
2540 | if (name[0] == '<') | |
2541 | continue; | |
2542 | ||
2543 | if (strlen(buf) + strlen(name) + 2 >= buf_sz) | |
2544 | return; | |
2545 | ||
2546 | if (!first) | |
2547 | strcat(buf, ","); | |
2548 | else | |
2549 | first = false; | |
2550 | strcat(buf, name); | |
2551 | } | |
2552 | } | |
2553 | ||
ffeb883e HK |
2554 | /* |
2555 | * Return string contains valid config terms of an event. | |
2556 | * @additional_terms: For terms such as PMU sysfs terms. | |
2557 | */ | |
2558 | char *parse_events_formats_error_string(char *additional_terms) | |
2559 | { | |
2560 | char *str; | |
626a6b78 | 2561 | /* "no-overwrite" is the longest name */ |
17cb5f84 | 2562 | char static_terms[__PARSE_EVENTS__TERM_TYPE_NR * |
626a6b78 | 2563 | (sizeof("no-overwrite") - 1)]; |
ffeb883e | 2564 | |
17cb5f84 | 2565 | config_terms_list(static_terms, sizeof(static_terms)); |
ffeb883e HK |
2566 | /* valid terms */ |
2567 | if (additional_terms) { | |
26dee028 WN |
2568 | if (asprintf(&str, "valid terms: %s,%s", |
2569 | additional_terms, static_terms) < 0) | |
ffeb883e HK |
2570 | goto fail; |
2571 | } else { | |
26dee028 | 2572 | if (asprintf(&str, "valid terms: %s", static_terms) < 0) |
ffeb883e HK |
2573 | goto fail; |
2574 | } | |
2575 | return str; | |
2576 | ||
2577 | fail: | |
2578 | return NULL; | |
2579 | } |