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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
d2709c7c | 2 | #include <linux/hw_breakpoint.h> |
8dd2a131 | 3 | #include <linux/err.h> |
76b31a29 | 4 | #include <dirent.h> |
a43783ae | 5 | #include <errno.h> |
86a5e0c2 | 6 | #include <sys/ioctl.h> |
391e4206 | 7 | #include <sys/param.h> |
b0742e90 | 8 | #include "term.h" |
6b58e7f1 | 9 | #include "../perf.h" |
361c99a6 | 10 | #include "evlist.h" |
69aad6f1 | 11 | #include "evsel.h" |
4b6ab94e | 12 | #include <subcmd/parse-options.h> |
8ad8db37 | 13 | #include "parse-events.h" |
4b6ab94e | 14 | #include <subcmd/exec-cmd.h> |
a067558e | 15 | #include "string2.h" |
8ec20b17 | 16 | #include "strlist.h" |
5aab621b | 17 | #include "symbol.h" |
5beeded1 | 18 | #include "cache.h" |
8755a8f2 | 19 | #include "header.h" |
84c86ca1 | 20 | #include "bpf-loader.h" |
6e81c74c | 21 | #include "debug.h" |
592d5a6b | 22 | #include <api/fs/tracing_path.h> |
ac20de6f | 23 | #include "parse-events-bison.h" |
90e2b22d | 24 | #define YY_EXTRA_TYPE int |
89812fc8 | 25 | #include "parse-events-flex.h" |
5f537a26 | 26 | #include "pmu.h" |
b41f1cec | 27 | #include "thread_map.h" |
f30a79b0 | 28 | #include "cpumap.h" |
40218dae | 29 | #include "probe-file.h" |
b39b8393 | 30 | #include "asm/bug.h" |
ac12f676 | 31 | #include "util/parse-branch-options.h" |
71b0acce | 32 | #include "metricgroup.h" |
89812fc8 JO |
33 | |
34 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 35 | |
82ba1f2f JO |
36 | #ifdef PARSER_DEBUG |
37 | extern int parse_events_debug; | |
38 | #endif | |
5d9cdc11 | 39 | int parse_events_parse(void *parse_state, void *scanner); |
e637d177 HK |
40 | static int get_config_terms(struct list_head *head_config, |
41 | struct list_head *head_terms __maybe_unused); | |
bcd3279f | 42 | |
dcb4e102 KL |
43 | static struct perf_pmu_event_symbol *perf_pmu_events_list; |
44 | /* | |
45 | * The variable indicates the number of supported pmu event symbols. | |
46 | * 0 means not initialized and ready to init | |
47 | * -1 means failed to init, don't try anymore | |
48 | * >0 is the number of supported pmu event symbols | |
49 | */ | |
50 | static int perf_pmu_events_list_num; | |
51 | ||
705750f2 | 52 | struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
1dc12760 JO |
53 | [PERF_COUNT_HW_CPU_CYCLES] = { |
54 | .symbol = "cpu-cycles", | |
55 | .alias = "cycles", | |
56 | }, | |
57 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
58 | .symbol = "instructions", | |
59 | .alias = "", | |
60 | }, | |
61 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
62 | .symbol = "cache-references", | |
63 | .alias = "", | |
64 | }, | |
65 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
66 | .symbol = "cache-misses", | |
67 | .alias = "", | |
68 | }, | |
69 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
70 | .symbol = "branch-instructions", | |
71 | .alias = "branches", | |
72 | }, | |
73 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
74 | .symbol = "branch-misses", | |
75 | .alias = "", | |
76 | }, | |
77 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
78 | .symbol = "bus-cycles", | |
79 | .alias = "", | |
80 | }, | |
81 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
82 | .symbol = "stalled-cycles-frontend", | |
83 | .alias = "idle-cycles-frontend", | |
84 | }, | |
85 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
86 | .symbol = "stalled-cycles-backend", | |
87 | .alias = "idle-cycles-backend", | |
88 | }, | |
89 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
90 | .symbol = "ref-cycles", | |
91 | .alias = "", | |
92 | }, | |
93 | }; | |
94 | ||
705750f2 | 95 | struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { |
1dc12760 JO |
96 | [PERF_COUNT_SW_CPU_CLOCK] = { |
97 | .symbol = "cpu-clock", | |
98 | .alias = "", | |
99 | }, | |
100 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
101 | .symbol = "task-clock", | |
102 | .alias = "", | |
103 | }, | |
104 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
105 | .symbol = "page-faults", | |
106 | .alias = "faults", | |
107 | }, | |
108 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
109 | .symbol = "context-switches", | |
110 | .alias = "cs", | |
111 | }, | |
112 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
113 | .symbol = "cpu-migrations", | |
114 | .alias = "migrations", | |
115 | }, | |
116 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
117 | .symbol = "minor-faults", | |
118 | .alias = "", | |
119 | }, | |
120 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
121 | .symbol = "major-faults", | |
122 | .alias = "", | |
123 | }, | |
124 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
125 | .symbol = "alignment-faults", | |
126 | .alias = "", | |
127 | }, | |
128 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
129 | .symbol = "emulation-faults", | |
130 | .alias = "", | |
131 | }, | |
d22d1a2a AH |
132 | [PERF_COUNT_SW_DUMMY] = { |
133 | .symbol = "dummy", | |
134 | .alias = "", | |
135 | }, | |
bae9cc41 ACM |
136 | [PERF_COUNT_SW_BPF_OUTPUT] = { |
137 | .symbol = "bpf-output", | |
138 | .alias = "", | |
139 | }, | |
8ad8db37 IM |
140 | }; |
141 | ||
cdd6c482 IM |
142 | #define __PERF_EVENT_FIELD(config, name) \ |
143 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 144 | |
1fc570ad | 145 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 146 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 147 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 148 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 149 | |
22a9f41b ACM |
150 | #define for_each_subsystem(sys_dir, sys_dirent) \ |
151 | while ((sys_dirent = readdir(sys_dir)) != NULL) \ | |
152 | if (sys_dirent->d_type == DT_DIR && \ | |
153 | (strcmp(sys_dirent->d_name, ".")) && \ | |
154 | (strcmp(sys_dirent->d_name, ".."))) | |
f6bdafef | 155 | |
ae07b63f PZ |
156 | static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir) |
157 | { | |
158 | char evt_path[MAXPATHLEN]; | |
159 | int fd; | |
160 | ||
ebf294bf | 161 | snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path, |
ae07b63f PZ |
162 | sys_dir->d_name, evt_dir->d_name); |
163 | fd = open(evt_path, O_RDONLY); | |
164 | if (fd < 0) | |
165 | return -EINVAL; | |
166 | close(fd); | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
22a9f41b ACM |
171 | #define for_each_event(sys_dirent, evt_dir, evt_dirent) \ |
172 | while ((evt_dirent = readdir(evt_dir)) != NULL) \ | |
173 | if (evt_dirent->d_type == DT_DIR && \ | |
174 | (strcmp(evt_dirent->d_name, ".")) && \ | |
175 | (strcmp(evt_dirent->d_name, "..")) && \ | |
176 | (!tp_event_has_id(sys_dirent, evt_dirent))) | |
f6bdafef | 177 | |
270bbbe8 | 178 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 179 | |
f6bdafef | 180 | |
1ef2ed10 | 181 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 182 | { |
1ef2ed10 | 183 | struct tracepoint_path *path = NULL; |
f6bdafef | 184 | DIR *sys_dir, *evt_dir; |
22a9f41b | 185 | struct dirent *sys_dirent, *evt_dirent; |
8aa8a7c8 | 186 | char id_buf[24]; |
725b1368 | 187 | int fd; |
f6bdafef JB |
188 | u64 id; |
189 | char evt_path[MAXPATHLEN]; | |
725b1368 | 190 | char dir_path[MAXPATHLEN]; |
f6bdafef | 191 | |
ebf294bf | 192 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 193 | if (!sys_dir) |
725b1368 | 194 | return NULL; |
6b58e7f1 | 195 | |
22a9f41b | 196 | for_each_subsystem(sys_dir, sys_dirent) { |
725b1368 | 197 | |
ebf294bf | 198 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 199 | sys_dirent->d_name); |
725b1368 ED |
200 | evt_dir = opendir(dir_path); |
201 | if (!evt_dir) | |
6b58e7f1 | 202 | continue; |
725b1368 | 203 | |
22a9f41b | 204 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
725b1368 | 205 | |
b1bc5ead JO |
206 | scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, |
207 | evt_dirent->d_name); | |
725b1368 | 208 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
209 | if (fd < 0) |
210 | continue; | |
211 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
212 | close(fd); | |
213 | continue; | |
214 | } | |
215 | close(fd); | |
216 | id = atoll(id_buf); | |
217 | if (id == config) { | |
218 | closedir(evt_dir); | |
219 | closedir(sys_dir); | |
59b4caeb | 220 | path = zalloc(sizeof(*path)); |
5aa365f2 TS |
221 | if (!path) |
222 | return NULL; | |
1ef2ed10 FW |
223 | path->system = malloc(MAX_EVENT_LENGTH); |
224 | if (!path->system) { | |
225 | free(path); | |
226 | return NULL; | |
227 | } | |
228 | path->name = malloc(MAX_EVENT_LENGTH); | |
229 | if (!path->name) { | |
74cf249d | 230 | zfree(&path->system); |
1ef2ed10 FW |
231 | free(path); |
232 | return NULL; | |
233 | } | |
22a9f41b | 234 | strncpy(path->system, sys_dirent->d_name, |
1ef2ed10 | 235 | MAX_EVENT_LENGTH); |
22a9f41b | 236 | strncpy(path->name, evt_dirent->d_name, |
1ef2ed10 FW |
237 | MAX_EVENT_LENGTH); |
238 | return path; | |
f6bdafef JB |
239 | } |
240 | } | |
241 | closedir(evt_dir); | |
242 | } | |
243 | ||
f6bdafef | 244 | closedir(sys_dir); |
1ef2ed10 FW |
245 | return NULL; |
246 | } | |
247 | ||
e7c93f09 NK |
248 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
249 | { | |
250 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
251 | char *str = strchr(name, ':'); | |
252 | ||
253 | if (path == NULL || str == NULL) { | |
254 | free(path); | |
255 | return NULL; | |
256 | } | |
257 | ||
258 | path->system = strndup(name, str - name); | |
259 | path->name = strdup(str+1); | |
260 | ||
261 | if (path->system == NULL || path->name == NULL) { | |
74cf249d ACM |
262 | zfree(&path->system); |
263 | zfree(&path->name); | |
506fde11 | 264 | zfree(&path); |
e7c93f09 NK |
265 | } |
266 | ||
267 | return path; | |
268 | } | |
269 | ||
1424dc96 DA |
270 | const char *event_type(int type) |
271 | { | |
272 | switch (type) { | |
273 | case PERF_TYPE_HARDWARE: | |
274 | return "hardware"; | |
275 | ||
276 | case PERF_TYPE_SOFTWARE: | |
277 | return "software"; | |
278 | ||
279 | case PERF_TYPE_TRACEPOINT: | |
280 | return "tracepoint"; | |
281 | ||
282 | case PERF_TYPE_HW_CACHE: | |
283 | return "hardware-cache"; | |
284 | ||
285 | default: | |
286 | break; | |
287 | } | |
288 | ||
289 | return "unknown"; | |
290 | } | |
291 | ||
e814fddd WN |
292 | static int parse_events__is_name_term(struct parse_events_term *term) |
293 | { | |
294 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
295 | } | |
7ae92e74 | 296 | |
e814fddd WN |
297 | static char *get_config_name(struct list_head *head_terms) |
298 | { | |
299 | struct parse_events_term *term; | |
300 | ||
301 | if (!head_terms) | |
302 | return NULL; | |
303 | ||
304 | list_for_each_entry(term, head_terms, list) | |
305 | if (parse_events__is_name_term(term)) | |
306 | return term->val.str; | |
307 | ||
308 | return NULL; | |
309 | } | |
7ae92e74 | 310 | |
410136f5 SE |
311 | static struct perf_evsel * |
312 | __add_event(struct list_head *list, int *idx, | |
313 | struct perf_event_attr *attr, | |
66ec1191 | 314 | char *name, struct perf_pmu *pmu, |
63ce8449 | 315 | struct list_head *config_terms, bool auto_merge_stats) |
89812fc8 JO |
316 | { |
317 | struct perf_evsel *evsel; | |
66ec1191 | 318 | struct cpu_map *cpus = pmu ? pmu->cpus : NULL; |
89812fc8 JO |
319 | |
320 | event_attr_init(attr); | |
321 | ||
75fc5ae5 | 322 | evsel = perf_evsel__new_idx(attr, *idx); |
c5cd8ac0 | 323 | if (!evsel) |
410136f5 | 324 | return NULL; |
89812fc8 | 325 | |
75fc5ae5 | 326 | (*idx)++; |
e3ba76de JO |
327 | evsel->cpus = cpu_map__get(cpus); |
328 | evsel->own_cpus = cpu_map__get(cpus); | |
66ec1191 | 329 | evsel->system_wide = pmu ? pmu->is_uncore : false; |
63ce8449 | 330 | evsel->auto_merge_stats = auto_merge_stats; |
f30a79b0 | 331 | |
9db1763c ACM |
332 | if (name) |
333 | evsel->name = strdup(name); | |
930a2e29 JO |
334 | |
335 | if (config_terms) | |
336 | list_splice(config_terms, &evsel->config_terms); | |
337 | ||
b847cbdc | 338 | list_add_tail(&evsel->node, list); |
410136f5 | 339 | return evsel; |
89812fc8 JO |
340 | } |
341 | ||
c5cd8ac0 | 342 | static int add_event(struct list_head *list, int *idx, |
930a2e29 JO |
343 | struct perf_event_attr *attr, char *name, |
344 | struct list_head *config_terms) | |
7ae92e74 | 345 | { |
63ce8449 | 346 | return __add_event(list, idx, attr, name, NULL, config_terms, false) ? 0 : -ENOMEM; |
7ae92e74 YZ |
347 | } |
348 | ||
0b668bc9 | 349 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
350 | { |
351 | int i, j; | |
61c45981 | 352 | int n, longest = -1; |
8326f44d IM |
353 | |
354 | for (i = 0; i < size; i++) { | |
0b668bc9 | 355 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 356 | n = strlen(names[i][j]); |
89812fc8 | 357 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
358 | longest = n; |
359 | } | |
89812fc8 | 360 | if (longest > 0) |
61c45981 | 361 | return i; |
8326f44d IM |
362 | } |
363 | ||
8953645f | 364 | return -1; |
8326f44d IM |
365 | } |
366 | ||
43d0b978 WN |
367 | typedef int config_term_func_t(struct perf_event_attr *attr, |
368 | struct parse_events_term *term, | |
369 | struct parse_events_error *err); | |
370 | static int config_term_common(struct perf_event_attr *attr, | |
371 | struct parse_events_term *term, | |
372 | struct parse_events_error *err); | |
373 | static int config_attr(struct perf_event_attr *attr, | |
374 | struct list_head *head, | |
375 | struct parse_events_error *err, | |
376 | config_term_func_t config_term); | |
377 | ||
c5cd8ac0 | 378 | int parse_events_add_cache(struct list_head *list, int *idx, |
43d0b978 | 379 | char *type, char *op_result1, char *op_result2, |
2c97b0d4 | 380 | struct parse_events_error *err, |
43d0b978 | 381 | struct list_head *head_config) |
8326f44d | 382 | { |
89812fc8 | 383 | struct perf_event_attr attr; |
43d0b978 WN |
384 | LIST_HEAD(config_terms); |
385 | char name[MAX_NAME_LEN], *config_name; | |
61c45981 | 386 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
387 | char *op_result[2] = { op_result1, op_result2 }; |
388 | int i, n; | |
8326f44d | 389 | |
8326f44d IM |
390 | /* |
391 | * No fallback - if we cannot get a clear cache type | |
392 | * then bail out: | |
393 | */ | |
0b668bc9 | 394 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 395 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 396 | if (cache_type == -1) |
89812fc8 JO |
397 | return -EINVAL; |
398 | ||
43d0b978 | 399 | config_name = get_config_name(head_config); |
89812fc8 | 400 | n = snprintf(name, MAX_NAME_LEN, "%s", type); |
61c45981 | 401 | |
89812fc8 JO |
402 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
403 | char *str = op_result[i]; | |
404 | ||
275ef387 | 405 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
406 | |
407 | if (cache_op == -1) { | |
0b668bc9 | 408 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 409 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 410 | if (cache_op >= 0) { |
0b668bc9 | 411 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 412 | return -EINVAL; |
61c45981 PM |
413 | continue; |
414 | } | |
415 | } | |
416 | ||
417 | if (cache_result == -1) { | |
0b668bc9 ACM |
418 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
419 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
420 | if (cache_result >= 0) |
421 | continue; | |
422 | } | |
61c45981 | 423 | } |
8326f44d | 424 | |
8326f44d IM |
425 | /* |
426 | * Fall back to reads: | |
427 | */ | |
8953645f IM |
428 | if (cache_op == -1) |
429 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 430 | |
8326f44d IM |
431 | /* |
432 | * Fall back to accesses: | |
433 | */ | |
434 | if (cache_result == -1) | |
435 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
436 | ||
89812fc8 JO |
437 | memset(&attr, 0, sizeof(attr)); |
438 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
439 | attr.type = PERF_TYPE_HW_CACHE; | |
43d0b978 WN |
440 | |
441 | if (head_config) { | |
2c97b0d4 | 442 | if (config_attr(&attr, head_config, err, |
43d0b978 WN |
443 | config_term_common)) |
444 | return -EINVAL; | |
445 | ||
446 | if (get_config_terms(head_config, &config_terms)) | |
447 | return -ENOMEM; | |
448 | } | |
449 | return add_event(list, idx, &attr, config_name ? : name, &config_terms); | |
bcd3279f FW |
450 | } |
451 | ||
272ed29a | 452 | static void tracepoint_error(struct parse_events_error *e, int err, |
8c619d6a | 453 | const char *sys, const char *name) |
19658171 JO |
454 | { |
455 | char help[BUFSIZ]; | |
456 | ||
ec183d22 AH |
457 | if (!e) |
458 | return; | |
459 | ||
19658171 JO |
460 | /* |
461 | * We get error directly from syscall errno ( > 0), | |
462 | * or from encoded pointer's error ( < 0). | |
463 | */ | |
464 | err = abs(err); | |
465 | ||
466 | switch (err) { | |
467 | case EACCES: | |
272ed29a | 468 | e->str = strdup("can't access trace events"); |
19658171 JO |
469 | break; |
470 | case ENOENT: | |
272ed29a | 471 | e->str = strdup("unknown tracepoint"); |
19658171 JO |
472 | break; |
473 | default: | |
272ed29a | 474 | e->str = strdup("failed to add tracepoint"); |
19658171 JO |
475 | break; |
476 | } | |
477 | ||
478 | tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); | |
272ed29a | 479 | e->help = strdup(help); |
19658171 JO |
480 | } |
481 | ||
c5cd8ac0 | 482 | static int add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 483 | const char *sys_name, const char *evt_name, |
272ed29a | 484 | struct parse_events_error *err, |
e637d177 | 485 | struct list_head *head_config) |
bcd3279f | 486 | { |
82fe1c29 | 487 | struct perf_evsel *evsel; |
bcd3279f | 488 | |
ef503831 | 489 | evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); |
19658171 | 490 | if (IS_ERR(evsel)) { |
272ed29a | 491 | tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name); |
8dd2a131 | 492 | return PTR_ERR(evsel); |
19658171 | 493 | } |
bcd3279f | 494 | |
e637d177 HK |
495 | if (head_config) { |
496 | LIST_HEAD(config_terms); | |
497 | ||
498 | if (get_config_terms(head_config, &config_terms)) | |
499 | return -ENOMEM; | |
500 | list_splice(&config_terms, &evsel->config_terms); | |
501 | } | |
502 | ||
82fe1c29 | 503 | list_add_tail(&evsel->node, list); |
82fe1c29 | 504 | return 0; |
8326f44d IM |
505 | } |
506 | ||
c5cd8ac0 | 507 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
8c619d6a | 508 | const char *sys_name, const char *evt_name, |
272ed29a | 509 | struct parse_events_error *err, |
e637d177 | 510 | struct list_head *head_config) |
bcd3279f FW |
511 | { |
512 | char evt_path[MAXPATHLEN]; | |
513 | struct dirent *evt_ent; | |
514 | DIR *evt_dir; | |
27bf90bf | 515 | int ret = 0, found = 0; |
bcd3279f | 516 | |
ebf294bf | 517 | snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name); |
bcd3279f | 518 | evt_dir = opendir(evt_path); |
bcd3279f | 519 | if (!evt_dir) { |
272ed29a | 520 | tracepoint_error(err, errno, sys_name, evt_name); |
89812fc8 | 521 | return -1; |
bcd3279f FW |
522 | } |
523 | ||
89812fc8 | 524 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
525 | if (!strcmp(evt_ent->d_name, ".") |
526 | || !strcmp(evt_ent->d_name, "..") | |
527 | || !strcmp(evt_ent->d_name, "enable") | |
528 | || !strcmp(evt_ent->d_name, "filter")) | |
529 | continue; | |
530 | ||
89812fc8 | 531 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
532 | continue; |
533 | ||
27bf90bf JO |
534 | found++; |
535 | ||
e637d177 | 536 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, |
272ed29a | 537 | err, head_config); |
bcd3279f FW |
538 | } |
539 | ||
27bf90bf JO |
540 | if (!found) { |
541 | tracepoint_error(err, ENOENT, sys_name, evt_name); | |
542 | ret = -1; | |
543 | } | |
544 | ||
0bd3f084 | 545 | closedir(evt_dir); |
89812fc8 | 546 | return ret; |
bcd3279f FW |
547 | } |
548 | ||
c5cd8ac0 | 549 | static int add_tracepoint_event(struct list_head *list, int *idx, |
8c619d6a | 550 | const char *sys_name, const char *evt_name, |
272ed29a | 551 | struct parse_events_error *err, |
e637d177 | 552 | struct list_head *head_config) |
f35488f9 JO |
553 | { |
554 | return strpbrk(evt_name, "*?") ? | |
e637d177 | 555 | add_tracepoint_multi_event(list, idx, sys_name, evt_name, |
272ed29a | 556 | err, head_config) : |
e637d177 | 557 | add_tracepoint(list, idx, sys_name, evt_name, |
272ed29a | 558 | err, head_config); |
f35488f9 JO |
559 | } |
560 | ||
c5cd8ac0 | 561 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
8c619d6a | 562 | const char *sys_name, const char *evt_name, |
272ed29a | 563 | struct parse_events_error *err, |
e637d177 | 564 | struct list_head *head_config) |
f35488f9 JO |
565 | { |
566 | struct dirent *events_ent; | |
567 | DIR *events_dir; | |
568 | int ret = 0; | |
569 | ||
570 | events_dir = opendir(tracing_events_path); | |
571 | if (!events_dir) { | |
272ed29a | 572 | tracepoint_error(err, errno, sys_name, evt_name); |
f35488f9 JO |
573 | return -1; |
574 | } | |
575 | ||
576 | while (!ret && (events_ent = readdir(events_dir))) { | |
577 | if (!strcmp(events_ent->d_name, ".") | |
578 | || !strcmp(events_ent->d_name, "..") | |
579 | || !strcmp(events_ent->d_name, "enable") | |
580 | || !strcmp(events_ent->d_name, "header_event") | |
581 | || !strcmp(events_ent->d_name, "header_page")) | |
582 | continue; | |
583 | ||
584 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
585 | continue; | |
586 | ||
587 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
272ed29a | 588 | evt_name, err, head_config); |
f35488f9 JO |
589 | } |
590 | ||
591 | closedir(events_dir); | |
592 | return ret; | |
593 | } | |
594 | ||
4edf30e3 | 595 | struct __add_bpf_event_param { |
5d9cdc11 | 596 | struct parse_events_state *parse_state; |
4edf30e3 | 597 | struct list_head *list; |
95088a59 | 598 | struct list_head *head_config; |
4edf30e3 WN |
599 | }; |
600 | ||
cd102d70 | 601 | static int add_bpf_event(const char *group, const char *event, int fd, |
4edf30e3 WN |
602 | void *_param) |
603 | { | |
604 | LIST_HEAD(new_evsels); | |
605 | struct __add_bpf_event_param *param = _param; | |
5d9cdc11 | 606 | struct parse_events_state *parse_state = param->parse_state; |
4edf30e3 | 607 | struct list_head *list = param->list; |
1f45b1d4 | 608 | struct perf_evsel *pos; |
4edf30e3 WN |
609 | int err; |
610 | ||
611 | pr_debug("add bpf event %s:%s and attach bpf program %d\n", | |
cd102d70 | 612 | group, event, fd); |
4edf30e3 | 613 | |
5d369a75 ACM |
614 | err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group, |
615 | event, parse_state->error, | |
95088a59 | 616 | param->head_config); |
4edf30e3 WN |
617 | if (err) { |
618 | struct perf_evsel *evsel, *tmp; | |
619 | ||
620 | pr_debug("Failed to add BPF event %s:%s\n", | |
cd102d70 | 621 | group, event); |
4edf30e3 WN |
622 | list_for_each_entry_safe(evsel, tmp, &new_evsels, node) { |
623 | list_del(&evsel->node); | |
624 | perf_evsel__delete(evsel); | |
625 | } | |
626 | return err; | |
627 | } | |
cd102d70 | 628 | pr_debug("adding %s:%s\n", group, event); |
4edf30e3 | 629 | |
1f45b1d4 WN |
630 | list_for_each_entry(pos, &new_evsels, node) { |
631 | pr_debug("adding %s:%s to %p\n", | |
cd102d70 | 632 | group, event, pos); |
1f45b1d4 WN |
633 | pos->bpf_fd = fd; |
634 | } | |
4edf30e3 WN |
635 | list_splice(&new_evsels, list); |
636 | return 0; | |
637 | } | |
638 | ||
5d9cdc11 | 639 | int parse_events_load_bpf_obj(struct parse_events_state *parse_state, |
84c86ca1 | 640 | struct list_head *list, |
95088a59 WN |
641 | struct bpf_object *obj, |
642 | struct list_head *head_config) | |
84c86ca1 WN |
643 | { |
644 | int err; | |
645 | char errbuf[BUFSIZ]; | |
5d9cdc11 | 646 | struct __add_bpf_event_param param = {parse_state, list, head_config}; |
aa3abf30 | 647 | static bool registered_unprobe_atexit = false; |
84c86ca1 WN |
648 | |
649 | if (IS_ERR(obj) || !obj) { | |
650 | snprintf(errbuf, sizeof(errbuf), | |
651 | "Internal error: load bpf obj with NULL"); | |
652 | err = -EINVAL; | |
653 | goto errout; | |
654 | } | |
655 | ||
aa3abf30 WN |
656 | /* |
657 | * Register atexit handler before calling bpf__probe() so | |
658 | * bpf__probe() don't need to unprobe probe points its already | |
659 | * created when failure. | |
660 | */ | |
661 | if (!registered_unprobe_atexit) { | |
662 | atexit(bpf__clear); | |
663 | registered_unprobe_atexit = true; | |
664 | } | |
665 | ||
666 | err = bpf__probe(obj); | |
667 | if (err) { | |
668 | bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf)); | |
669 | goto errout; | |
670 | } | |
671 | ||
1e5e3ee8 WN |
672 | err = bpf__load(obj); |
673 | if (err) { | |
674 | bpf__strerror_load(obj, err, errbuf, sizeof(errbuf)); | |
675 | goto errout; | |
676 | } | |
677 | ||
cd102d70 | 678 | err = bpf__foreach_event(obj, add_bpf_event, ¶m); |
4edf30e3 WN |
679 | if (err) { |
680 | snprintf(errbuf, sizeof(errbuf), | |
681 | "Attach events in BPF object failed"); | |
682 | goto errout; | |
683 | } | |
684 | ||
685 | return 0; | |
84c86ca1 | 686 | errout: |
5d9cdc11 ACM |
687 | parse_state->error->help = strdup("(add -v to see detail)"); |
688 | parse_state->error->str = strdup(errbuf); | |
84c86ca1 WN |
689 | return err; |
690 | } | |
691 | ||
a34f3be7 | 692 | static int |
5d9cdc11 | 693 | parse_events_config_bpf(struct parse_events_state *parse_state, |
a34f3be7 WN |
694 | struct bpf_object *obj, |
695 | struct list_head *head_config) | |
696 | { | |
697 | struct parse_events_term *term; | |
698 | int error_pos; | |
699 | ||
700 | if (!head_config || list_empty(head_config)) | |
701 | return 0; | |
702 | ||
703 | list_for_each_entry(term, head_config, list) { | |
704 | char errbuf[BUFSIZ]; | |
705 | int err; | |
706 | ||
707 | if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) { | |
708 | snprintf(errbuf, sizeof(errbuf), | |
709 | "Invalid config term for BPF object"); | |
710 | errbuf[BUFSIZ - 1] = '\0'; | |
711 | ||
5d9cdc11 ACM |
712 | parse_state->error->idx = term->err_term; |
713 | parse_state->error->str = strdup(errbuf); | |
a34f3be7 WN |
714 | return -EINVAL; |
715 | } | |
716 | ||
5d9cdc11 | 717 | err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos); |
a34f3be7 | 718 | if (err) { |
5d9cdc11 | 719 | bpf__strerror_config_obj(obj, term, parse_state->evlist, |
a34f3be7 WN |
720 | &error_pos, err, errbuf, |
721 | sizeof(errbuf)); | |
5d9cdc11 | 722 | parse_state->error->help = strdup( |
7630b3e2 | 723 | "Hint:\tValid config terms:\n" |
e571e029 WN |
724 | " \tmap:[<arraymap>].value<indices>=[value]\n" |
725 | " \tmap:[<eventmap>].event<indices>=[event]\n" | |
7630b3e2 | 726 | "\n" |
e571e029 | 727 | " \twhere <indices> is something like [0,3...5] or [all]\n" |
a34f3be7 | 728 | " \t(add -v to see detail)"); |
5d9cdc11 | 729 | parse_state->error->str = strdup(errbuf); |
a34f3be7 | 730 | if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE) |
5d9cdc11 | 731 | parse_state->error->idx = term->err_val; |
a34f3be7 | 732 | else |
5d9cdc11 | 733 | parse_state->error->idx = term->err_term + error_pos; |
a34f3be7 WN |
734 | return err; |
735 | } | |
736 | } | |
737 | return 0; | |
738 | } | |
739 | ||
95088a59 WN |
740 | /* |
741 | * Split config terms: | |
742 | * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ... | |
743 | * 'call-graph=fp' is 'evt config', should be applied to each | |
744 | * events in bpf.c. | |
745 | * 'map:array.value[0]=1' is 'obj config', should be processed | |
746 | * with parse_events_config_bpf. | |
747 | * | |
748 | * Move object config terms from the first list to obj_head_config. | |
749 | */ | |
750 | static void | |
751 | split_bpf_config_terms(struct list_head *evt_head_config, | |
752 | struct list_head *obj_head_config) | |
753 | { | |
754 | struct parse_events_term *term, *temp; | |
755 | ||
756 | /* | |
757 | * Currectly, all possible user config term | |
758 | * belong to bpf object. parse_events__is_hardcoded_term() | |
759 | * happends to be a good flag. | |
760 | * | |
761 | * See parse_events_config_bpf() and | |
762 | * config_term_tracepoint(). | |
763 | */ | |
764 | list_for_each_entry_safe(term, temp, evt_head_config, list) | |
765 | if (!parse_events__is_hardcoded_term(term)) | |
766 | list_move_tail(&term->list, obj_head_config); | |
767 | } | |
768 | ||
5d9cdc11 | 769 | int parse_events_load_bpf(struct parse_events_state *parse_state, |
84c86ca1 | 770 | struct list_head *list, |
d509db04 | 771 | char *bpf_file_name, |
a34f3be7 WN |
772 | bool source, |
773 | struct list_head *head_config) | |
84c86ca1 | 774 | { |
a34f3be7 | 775 | int err; |
95088a59 WN |
776 | struct bpf_object *obj; |
777 | LIST_HEAD(obj_head_config); | |
778 | ||
779 | if (head_config) | |
780 | split_bpf_config_terms(head_config, &obj_head_config); | |
84c86ca1 | 781 | |
d509db04 | 782 | obj = bpf__prepare_load(bpf_file_name, source); |
6371ca3b | 783 | if (IS_ERR(obj)) { |
84c86ca1 | 784 | char errbuf[BUFSIZ]; |
84c86ca1 | 785 | |
6371ca3b | 786 | err = PTR_ERR(obj); |
84c86ca1 WN |
787 | |
788 | if (err == -ENOTSUP) | |
789 | snprintf(errbuf, sizeof(errbuf), | |
790 | "BPF support is not compiled"); | |
791 | else | |
d3e0ce39 WN |
792 | bpf__strerror_prepare_load(bpf_file_name, |
793 | source, | |
794 | -err, errbuf, | |
795 | sizeof(errbuf)); | |
84c86ca1 | 796 | |
5d9cdc11 ACM |
797 | parse_state->error->help = strdup("(add -v to see detail)"); |
798 | parse_state->error->str = strdup(errbuf); | |
84c86ca1 WN |
799 | return err; |
800 | } | |
801 | ||
5d9cdc11 | 802 | err = parse_events_load_bpf_obj(parse_state, list, obj, head_config); |
a34f3be7 WN |
803 | if (err) |
804 | return err; | |
5d9cdc11 | 805 | err = parse_events_config_bpf(parse_state, obj, &obj_head_config); |
95088a59 WN |
806 | |
807 | /* | |
808 | * Caller doesn't know anything about obj_head_config, | |
809 | * so combine them together again before returnning. | |
810 | */ | |
811 | if (head_config) | |
812 | list_splice_tail(&obj_head_config, head_config); | |
813 | return err; | |
84c86ca1 WN |
814 | } |
815 | ||
89812fc8 JO |
816 | static int |
817 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
818 | { |
819 | int i; | |
820 | ||
821 | for (i = 0; i < 3; i++) { | |
89812fc8 | 822 | if (!type || !type[i]) |
1b290d67 FW |
823 | break; |
824 | ||
7582732f JO |
825 | #define CHECK_SET_TYPE(bit) \ |
826 | do { \ | |
827 | if (attr->bp_type & bit) \ | |
828 | return -EINVAL; \ | |
829 | else \ | |
830 | attr->bp_type |= bit; \ | |
831 | } while (0) | |
832 | ||
1b290d67 FW |
833 | switch (type[i]) { |
834 | case 'r': | |
7582732f | 835 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
836 | break; |
837 | case 'w': | |
7582732f | 838 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
839 | break; |
840 | case 'x': | |
7582732f | 841 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
842 | break; |
843 | default: | |
89812fc8 | 844 | return -EINVAL; |
1b290d67 FW |
845 | } |
846 | } | |
89812fc8 | 847 | |
7582732f JO |
848 | #undef CHECK_SET_TYPE |
849 | ||
1b290d67 FW |
850 | if (!attr->bp_type) /* Default */ |
851 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
852 | ||
89812fc8 | 853 | return 0; |
1b290d67 FW |
854 | } |
855 | ||
c5cd8ac0 | 856 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
3741eb9f | 857 | void *ptr, char *type, u64 len) |
1b290d67 | 858 | { |
89812fc8 | 859 | struct perf_event_attr attr; |
1b290d67 | 860 | |
89812fc8 | 861 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 862 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 863 | |
89812fc8 JO |
864 | if (parse_breakpoint_type(type, &attr)) |
865 | return -EINVAL; | |
1b290d67 | 866 | |
3741eb9f JS |
867 | /* Provide some defaults if len is not specified */ |
868 | if (!len) { | |
869 | if (attr.bp_type == HW_BREAKPOINT_X) | |
870 | len = sizeof(long); | |
871 | else | |
872 | len = HW_BREAKPOINT_LEN_4; | |
873 | } | |
874 | ||
875 | attr.bp_len = len; | |
61c45981 | 876 | |
89812fc8 | 877 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 878 | attr.sample_period = 1; |
b908debd | 879 | |
930a2e29 | 880 | return add_event(list, idx, &attr, NULL, NULL); |
74d5b588 JSR |
881 | } |
882 | ||
3b0e371c JO |
883 | static int check_type_val(struct parse_events_term *term, |
884 | struct parse_events_error *err, | |
885 | int type) | |
886 | { | |
887 | if (type == term->type_val) | |
888 | return 0; | |
889 | ||
890 | if (err) { | |
891 | err->idx = term->err_val; | |
892 | if (type == PARSE_EVENTS__TERM_TYPE_NUM) | |
893 | err->str = strdup("expected numeric value"); | |
894 | else | |
895 | err->str = strdup("expected string value"); | |
896 | } | |
897 | return -EINVAL; | |
898 | } | |
899 | ||
17cb5f84 WN |
900 | /* |
901 | * Update according to parse-events.l | |
902 | */ | |
903 | static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { | |
904 | [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>", | |
905 | [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", | |
906 | [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", | |
907 | [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", | |
908 | [PARSE_EVENTS__TERM_TYPE_NAME] = "name", | |
909 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", | |
910 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", | |
911 | [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type", | |
912 | [PARSE_EVENTS__TERM_TYPE_TIME] = "time", | |
913 | [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph", | |
914 | [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size", | |
915 | [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit", | |
916 | [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit", | |
792d48b4 | 917 | [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack", |
626a6b78 WN |
918 | [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite", |
919 | [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite", | |
dd60fba7 | 920 | [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", |
17cb5f84 WN |
921 | }; |
922 | ||
1669e509 WN |
923 | static bool config_term_shrinked; |
924 | ||
925 | static bool | |
926 | config_term_avail(int term_type, struct parse_events_error *err) | |
927 | { | |
928 | if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) { | |
929 | err->str = strdup("Invalid term_type"); | |
930 | return false; | |
931 | } | |
932 | if (!config_term_shrinked) | |
933 | return true; | |
934 | ||
935 | switch (term_type) { | |
936 | case PARSE_EVENTS__TERM_TYPE_CONFIG: | |
937 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
938 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
939 | case PARSE_EVENTS__TERM_TYPE_NAME: | |
06835545 | 940 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1669e509 WN |
941 | return true; |
942 | default: | |
943 | if (!err) | |
944 | return false; | |
945 | ||
946 | /* term_type is validated so indexing is safe */ | |
947 | if (asprintf(&err->str, "'%s' is not usable in 'perf stat'", | |
948 | config_term_names[term_type]) < 0) | |
949 | err->str = NULL; | |
950 | return false; | |
951 | } | |
952 | } | |
953 | ||
954 | void parse_events__shrink_config_terms(void) | |
955 | { | |
956 | config_term_shrinked = true; | |
957 | } | |
958 | ||
0b8891a8 HK |
959 | static int config_term_common(struct perf_event_attr *attr, |
960 | struct parse_events_term *term, | |
961 | struct parse_events_error *err) | |
8f707d84 | 962 | { |
3b0e371c JO |
963 | #define CHECK_TYPE_VAL(type) \ |
964 | do { \ | |
965 | if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \ | |
966 | return -EINVAL; \ | |
16fa7e82 JO |
967 | } while (0) |
968 | ||
969 | switch (term->type_term) { | |
8f707d84 | 970 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 971 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
972 | attr->config = term->val.num; |
973 | break; | |
974 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 975 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
976 | attr->config1 = term->val.num; |
977 | break; | |
978 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 979 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
980 | attr->config2 = term->val.num; |
981 | break; | |
982 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 983 | CHECK_TYPE_VAL(NUM); |
8f707d84 | 984 | break; |
09af2a55 NK |
985 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
986 | CHECK_TYPE_VAL(NUM); | |
987 | break; | |
8f707d84 | 988 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
ac12f676 AK |
989 | CHECK_TYPE_VAL(STR); |
990 | if (strcmp(term->val.str, "no") && | |
991 | parse_branch_str(term->val.str, &attr->branch_sample_type)) { | |
992 | err->str = strdup("invalid branch sample type"); | |
993 | err->idx = term->err_val; | |
994 | return -EINVAL; | |
995 | } | |
8f707d84 | 996 | break; |
32067712 KL |
997 | case PARSE_EVENTS__TERM_TYPE_TIME: |
998 | CHECK_TYPE_VAL(NUM); | |
999 | if (term->val.num > 1) { | |
1000 | err->str = strdup("expected 0 or 1"); | |
1001 | err->idx = term->err_val; | |
1002 | return -EINVAL; | |
1003 | } | |
1004 | break; | |
d457c963 KL |
1005 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1006 | CHECK_TYPE_VAL(STR); | |
1007 | break; | |
1008 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
1009 | CHECK_TYPE_VAL(NUM); | |
1010 | break; | |
374ce938 WN |
1011 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1012 | CHECK_TYPE_VAL(NUM); | |
1013 | break; | |
1014 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1015 | CHECK_TYPE_VAL(NUM); | |
1016 | break; | |
626a6b78 WN |
1017 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1018 | CHECK_TYPE_VAL(NUM); | |
1019 | break; | |
1020 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1021 | CHECK_TYPE_VAL(NUM); | |
1022 | break; | |
6b5fc39b JO |
1023 | case PARSE_EVENTS__TERM_TYPE_NAME: |
1024 | CHECK_TYPE_VAL(STR); | |
1025 | break; | |
792d48b4 ACM |
1026 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1027 | CHECK_TYPE_VAL(NUM); | |
1028 | break; | |
8f707d84 | 1029 | default: |
ffeb883e HK |
1030 | err->str = strdup("unknown term"); |
1031 | err->idx = term->err_term; | |
1032 | err->help = parse_events_formats_error_string(NULL); | |
8f707d84 JO |
1033 | return -EINVAL; |
1034 | } | |
16fa7e82 | 1035 | |
1669e509 WN |
1036 | /* |
1037 | * Check term availbility after basic checking so | |
1038 | * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered. | |
1039 | * | |
1040 | * If check availbility at the entry of this function, | |
1041 | * user will see "'<sysfs term>' is not usable in 'perf stat'" | |
1042 | * if an invalid config term is provided for legacy events | |
1043 | * (for example, instructions/badterm/...), which is confusing. | |
1044 | */ | |
1045 | if (!config_term_avail(term->type_term, err)) | |
1046 | return -EINVAL; | |
8f707d84 | 1047 | return 0; |
16fa7e82 | 1048 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
1049 | } |
1050 | ||
0b8891a8 HK |
1051 | static int config_term_pmu(struct perf_event_attr *attr, |
1052 | struct parse_events_term *term, | |
1053 | struct parse_events_error *err) | |
1054 | { | |
dd60fba7 MP |
1055 | if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER || |
1056 | term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG) | |
0b8891a8 HK |
1057 | /* |
1058 | * Always succeed for sysfs terms, as we dont know | |
1059 | * at this point what type they need to have. | |
1060 | */ | |
1061 | return 0; | |
1062 | else | |
1063 | return config_term_common(attr, term, err); | |
1064 | } | |
1065 | ||
e637d177 HK |
1066 | static int config_term_tracepoint(struct perf_event_attr *attr, |
1067 | struct parse_events_term *term, | |
1068 | struct parse_events_error *err) | |
1069 | { | |
1070 | switch (term->type_term) { | |
1071 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: | |
1072 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
374ce938 WN |
1073 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1074 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
792d48b4 | 1075 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
626a6b78 WN |
1076 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1077 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
e637d177 HK |
1078 | return config_term_common(attr, term, err); |
1079 | default: | |
1080 | if (err) { | |
1081 | err->idx = term->err_term; | |
1082 | err->str = strdup("unknown term"); | |
1083 | err->help = strdup("valid terms: call-graph,stack-size\n"); | |
1084 | } | |
1085 | return -EINVAL; | |
1086 | } | |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
8f707d84 | 1091 | static int config_attr(struct perf_event_attr *attr, |
3b0e371c | 1092 | struct list_head *head, |
0b8891a8 HK |
1093 | struct parse_events_error *err, |
1094 | config_term_func_t config_term) | |
8f707d84 | 1095 | { |
6cee6cd3 | 1096 | struct parse_events_term *term; |
8f707d84 JO |
1097 | |
1098 | list_for_each_entry(term, head, list) | |
3b0e371c | 1099 | if (config_term(attr, term, err)) |
8f707d84 JO |
1100 | return -EINVAL; |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
930a2e29 JO |
1105 | static int get_config_terms(struct list_head *head_config, |
1106 | struct list_head *head_terms __maybe_unused) | |
1107 | { | |
1108 | #define ADD_CONFIG_TERM(__type, __name, __val) \ | |
1109 | do { \ | |
1110 | struct perf_evsel_config_term *__t; \ | |
1111 | \ | |
1112 | __t = zalloc(sizeof(*__t)); \ | |
1113 | if (!__t) \ | |
1114 | return -ENOMEM; \ | |
1115 | \ | |
1116 | INIT_LIST_HEAD(&__t->list); \ | |
1117 | __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \ | |
1118 | __t->val.__name = __val; \ | |
59622fd4 | 1119 | __t->weak = term->weak; \ |
930a2e29 JO |
1120 | list_add_tail(&__t->list, head_terms); \ |
1121 | } while (0) | |
1122 | ||
1123 | struct parse_events_term *term; | |
1124 | ||
1125 | list_for_each_entry(term, head_config, list) { | |
1126 | switch (term->type_term) { | |
ee4c7588 JO |
1127 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1128 | ADD_CONFIG_TERM(PERIOD, period, term->val.num); | |
32067712 | 1129 | break; |
09af2a55 NK |
1130 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
1131 | ADD_CONFIG_TERM(FREQ, freq, term->val.num); | |
1132 | break; | |
32067712 KL |
1133 | case PARSE_EVENTS__TERM_TYPE_TIME: |
1134 | ADD_CONFIG_TERM(TIME, time, term->val.num); | |
1135 | break; | |
d457c963 KL |
1136 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1137 | ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str); | |
1138 | break; | |
ac12f676 AK |
1139 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
1140 | ADD_CONFIG_TERM(BRANCH, branch, term->val.str); | |
1141 | break; | |
d457c963 KL |
1142 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: |
1143 | ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num); | |
1144 | break; | |
374ce938 WN |
1145 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1146 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0); | |
1147 | break; | |
1148 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1149 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1); | |
1150 | break; | |
792d48b4 ACM |
1151 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1152 | ADD_CONFIG_TERM(MAX_STACK, max_stack, term->val.num); | |
1153 | break; | |
626a6b78 WN |
1154 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1155 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 1 : 0); | |
1156 | break; | |
1157 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1158 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 0 : 1); | |
1159 | break; | |
dd60fba7 MP |
1160 | case PARSE_EVENTS__TERM_TYPE_DRV_CFG: |
1161 | ADD_CONFIG_TERM(DRV_CFG, drv_cfg, term->val.str); | |
1162 | break; | |
930a2e29 JO |
1163 | default: |
1164 | break; | |
1165 | } | |
1166 | } | |
1167 | #undef ADD_EVSEL_CONFIG | |
1168 | return 0; | |
1169 | } | |
1170 | ||
e637d177 | 1171 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 1172 | const char *sys, const char *event, |
272ed29a | 1173 | struct parse_events_error *err, |
e637d177 HK |
1174 | struct list_head *head_config) |
1175 | { | |
1176 | if (head_config) { | |
1177 | struct perf_event_attr attr; | |
1178 | ||
272ed29a | 1179 | if (config_attr(&attr, head_config, err, |
e637d177 HK |
1180 | config_term_tracepoint)) |
1181 | return -EINVAL; | |
1182 | } | |
1183 | ||
1184 | if (strpbrk(sys, "*?")) | |
1185 | return add_tracepoint_multi_sys(list, idx, sys, event, | |
272ed29a | 1186 | err, head_config); |
e637d177 HK |
1187 | else |
1188 | return add_tracepoint_event(list, idx, sys, event, | |
272ed29a | 1189 | err, head_config); |
e637d177 HK |
1190 | } |
1191 | ||
5d9cdc11 | 1192 | int parse_events_add_numeric(struct parse_events_state *parse_state, |
87d650be | 1193 | struct list_head *list, |
b527bab5 | 1194 | u32 type, u64 config, |
8f707d84 | 1195 | struct list_head *head_config) |
8ad8db37 | 1196 | { |
89812fc8 | 1197 | struct perf_event_attr attr; |
930a2e29 | 1198 | LIST_HEAD(config_terms); |
61c45981 | 1199 | |
89812fc8 JO |
1200 | memset(&attr, 0, sizeof(attr)); |
1201 | attr.type = type; | |
1202 | attr.config = config; | |
8f707d84 | 1203 | |
930a2e29 | 1204 | if (head_config) { |
5d9cdc11 | 1205 | if (config_attr(&attr, head_config, parse_state->error, |
0b8891a8 | 1206 | config_term_common)) |
930a2e29 JO |
1207 | return -EINVAL; |
1208 | ||
1209 | if (get_config_terms(head_config, &config_terms)) | |
1210 | return -ENOMEM; | |
1211 | } | |
8f707d84 | 1212 | |
5d9cdc11 | 1213 | return add_event(list, &parse_state->idx, &attr, |
10bf358a | 1214 | get_config_name(head_config), &config_terms); |
61c45981 | 1215 | } |
8ad8db37 | 1216 | |
63ce8449 | 1217 | static int __parse_events_add_pmu(struct parse_events_state *parse_state, |
36adec85 | 1218 | struct list_head *list, char *name, |
63ce8449 | 1219 | struct list_head *head_config, bool auto_merge_stats) |
5f537a26 JO |
1220 | { |
1221 | struct perf_event_attr attr; | |
46441bdc | 1222 | struct perf_pmu_info info; |
5f537a26 | 1223 | struct perf_pmu *pmu; |
410136f5 | 1224 | struct perf_evsel *evsel; |
333b5665 | 1225 | struct parse_events_error *err = parse_state->error; |
930a2e29 | 1226 | LIST_HEAD(config_terms); |
5f537a26 JO |
1227 | |
1228 | pmu = perf_pmu__find(name); | |
333b5665 AK |
1229 | if (!pmu) { |
1230 | if (asprintf(&err->str, | |
1231 | "Cannot find PMU `%s'. Missing kernel support?", | |
1232 | name) < 0) | |
1233 | err->str = NULL; | |
5f537a26 | 1234 | return -EINVAL; |
333b5665 | 1235 | } |
5f537a26 | 1236 | |
dc0a6202 AH |
1237 | if (pmu->default_config) { |
1238 | memcpy(&attr, pmu->default_config, | |
1239 | sizeof(struct perf_event_attr)); | |
1240 | } else { | |
1241 | memset(&attr, 0, sizeof(attr)); | |
1242 | } | |
5f537a26 | 1243 | |
ad962273 AH |
1244 | if (!head_config) { |
1245 | attr.type = pmu->type; | |
66ec1191 | 1246 | evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu, NULL, auto_merge_stats); |
ad962273 AH |
1247 | return evsel ? 0 : -ENOMEM; |
1248 | } | |
1249 | ||
46441bdc | 1250 | if (perf_pmu__check_alias(pmu, head_config, &info)) |
a6146d50 ZY |
1251 | return -EINVAL; |
1252 | ||
5f537a26 JO |
1253 | /* |
1254 | * Configure hardcoded terms first, no need to check | |
1255 | * return value when called with fail == 0 ;) | |
1256 | */ | |
5d9cdc11 | 1257 | if (config_attr(&attr, head_config, parse_state->error, config_term_pmu)) |
c056ba6a | 1258 | return -EINVAL; |
5f537a26 | 1259 | |
930a2e29 JO |
1260 | if (get_config_terms(head_config, &config_terms)) |
1261 | return -ENOMEM; | |
1262 | ||
383a07bf IR |
1263 | if (perf_pmu__config(pmu, &attr, head_config, parse_state->error)) { |
1264 | struct perf_evsel_config_term *pos, *tmp; | |
1265 | ||
1266 | list_for_each_entry_safe(pos, tmp, &config_terms, list) { | |
1267 | list_del_init(&pos->list); | |
1268 | free(pos); | |
1269 | } | |
5f537a26 | 1270 | return -EINVAL; |
383a07bf | 1271 | } |
5f537a26 | 1272 | |
5d9cdc11 | 1273 | evsel = __add_event(list, &parse_state->idx, &attr, |
66ec1191 | 1274 | get_config_name(head_config), pmu, |
63ce8449 | 1275 | &config_terms, auto_merge_stats); |
410136f5 | 1276 | if (evsel) { |
46441bdc MF |
1277 | evsel->unit = info.unit; |
1278 | evsel->scale = info.scale; | |
044330c1 | 1279 | evsel->per_pkg = info.per_pkg; |
1d9e446b | 1280 | evsel->snapshot = info.snapshot; |
37932c18 | 1281 | evsel->metric_expr = info.metric_expr; |
96284814 | 1282 | evsel->metric_name = info.metric_name; |
410136f5 SE |
1283 | } |
1284 | ||
1285 | return evsel ? 0 : -ENOMEM; | |
5f537a26 JO |
1286 | } |
1287 | ||
63ce8449 ACM |
1288 | int parse_events_add_pmu(struct parse_events_state *parse_state, |
1289 | struct list_head *list, char *name, | |
1290 | struct list_head *head_config) | |
1291 | { | |
1292 | return __parse_events_add_pmu(parse_state, list, name, head_config, false); | |
1293 | } | |
1294 | ||
5d9cdc11 | 1295 | int parse_events_multi_pmu_add(struct parse_events_state *parse_state, |
2073ad33 AK |
1296 | char *str, struct list_head **listp) |
1297 | { | |
1298 | struct list_head *head; | |
1299 | struct parse_events_term *term; | |
1300 | struct list_head *list; | |
1301 | struct perf_pmu *pmu = NULL; | |
1302 | int ok = 0; | |
1303 | ||
1304 | *listp = NULL; | |
1305 | /* Add it for all PMUs that support the alias */ | |
1306 | list = malloc(sizeof(struct list_head)); | |
1307 | if (!list) | |
1308 | return -1; | |
1309 | INIT_LIST_HEAD(list); | |
1310 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1311 | struct perf_pmu_alias *alias; | |
1312 | ||
1313 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1314 | if (!strcasecmp(alias->name, str)) { | |
1315 | head = malloc(sizeof(struct list_head)); | |
1316 | if (!head) | |
1317 | return -1; | |
1318 | INIT_LIST_HEAD(head); | |
1319 | if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, | |
1320 | str, 1, false, &str, NULL) < 0) | |
1321 | return -1; | |
1322 | list_add_tail(&term->list, head); | |
1323 | ||
63ce8449 ACM |
1324 | if (!__parse_events_add_pmu(parse_state, list, |
1325 | pmu->name, head, true)) { | |
2073ad33 AK |
1326 | pr_debug("%s -> %s/%s/\n", str, |
1327 | pmu->name, alias->str); | |
1328 | ok++; | |
1329 | } | |
1330 | ||
1331 | parse_events_terms__delete(head); | |
1332 | } | |
1333 | } | |
1334 | } | |
1335 | if (!ok) | |
1336 | return -1; | |
1337 | *listp = list; | |
1338 | return 0; | |
1339 | } | |
1340 | ||
6a4bb04c JO |
1341 | int parse_events__modifier_group(struct list_head *list, |
1342 | char *event_mod) | |
89efb029 | 1343 | { |
6a4bb04c JO |
1344 | return parse_events__modifier_event(list, event_mod, true); |
1345 | } | |
1346 | ||
63dab225 | 1347 | void parse_events__set_leader(char *name, struct list_head *list) |
6a4bb04c JO |
1348 | { |
1349 | struct perf_evsel *leader; | |
1350 | ||
854f7363 WN |
1351 | if (list_empty(list)) { |
1352 | WARN_ONCE(true, "WARNING: failed to set leader: empty list"); | |
1353 | return; | |
1354 | } | |
1355 | ||
63dab225 ACM |
1356 | __perf_evlist__set_leader(list); |
1357 | leader = list_entry(list->next, struct perf_evsel, node); | |
6a4bb04c | 1358 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
1359 | } |
1360 | ||
c5cd8ac0 | 1361 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
1362 | void parse_events_update_lists(struct list_head *list_event, |
1363 | struct list_head *list_all) | |
1364 | { | |
1365 | /* | |
1366 | * Called for single event definition. Update the | |
89efb029 | 1367 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
1368 | * list, for next event definition. |
1369 | */ | |
1370 | list_splice_tail(list_event, list_all); | |
b847cbdc | 1371 | free(list_event); |
5d7be90e JO |
1372 | } |
1373 | ||
f5b1135b JO |
1374 | struct event_modifier { |
1375 | int eu; | |
1376 | int ek; | |
1377 | int eh; | |
1378 | int eH; | |
1379 | int eG; | |
a1e12da4 | 1380 | int eI; |
f5b1135b | 1381 | int precise; |
7f94af7a | 1382 | int precise_max; |
f5b1135b | 1383 | int exclude_GH; |
3c176311 | 1384 | int sample_read; |
e9a7c414 | 1385 | int pinned; |
5a5dfe4b | 1386 | int weak; |
f5b1135b JO |
1387 | }; |
1388 | ||
1389 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
1390 | struct perf_evsel *evsel) | |
61c45981 | 1391 | { |
f5b1135b JO |
1392 | int eu = evsel ? evsel->attr.exclude_user : 0; |
1393 | int ek = evsel ? evsel->attr.exclude_kernel : 0; | |
1394 | int eh = evsel ? evsel->attr.exclude_hv : 0; | |
1395 | int eH = evsel ? evsel->attr.exclude_host : 0; | |
1396 | int eG = evsel ? evsel->attr.exclude_guest : 0; | |
a1e12da4 | 1397 | int eI = evsel ? evsel->attr.exclude_idle : 0; |
f5b1135b | 1398 | int precise = evsel ? evsel->attr.precise_ip : 0; |
7f94af7a | 1399 | int precise_max = 0; |
3c176311 | 1400 | int sample_read = 0; |
e9a7c414 | 1401 | int pinned = evsel ? evsel->attr.pinned : 0; |
a21ca2ca | 1402 | |
f5b1135b JO |
1403 | int exclude = eu | ek | eh; |
1404 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
5a5dfe4b | 1405 | int weak = 0; |
f5b1135b | 1406 | |
f5b1135b | 1407 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 1408 | |
61c45981 | 1409 | while (*str) { |
ab608344 PZ |
1410 | if (*str == 'u') { |
1411 | if (!exclude) | |
1412 | exclude = eu = ek = eh = 1; | |
61c45981 | 1413 | eu = 0; |
ab608344 PZ |
1414 | } else if (*str == 'k') { |
1415 | if (!exclude) | |
1416 | exclude = eu = ek = eh = 1; | |
61c45981 | 1417 | ek = 0; |
ab608344 PZ |
1418 | } else if (*str == 'h') { |
1419 | if (!exclude) | |
1420 | exclude = eu = ek = eh = 1; | |
61c45981 | 1421 | eh = 0; |
99320cc8 JR |
1422 | } else if (*str == 'G') { |
1423 | if (!exclude_GH) | |
1424 | exclude_GH = eG = eH = 1; | |
1425 | eG = 0; | |
1426 | } else if (*str == 'H') { | |
1427 | if (!exclude_GH) | |
1428 | exclude_GH = eG = eH = 1; | |
1429 | eH = 0; | |
a1e12da4 JO |
1430 | } else if (*str == 'I') { |
1431 | eI = 1; | |
ab608344 PZ |
1432 | } else if (*str == 'p') { |
1433 | precise++; | |
1342798c DA |
1434 | /* use of precise requires exclude_guest */ |
1435 | if (!exclude_GH) | |
1436 | eG = 1; | |
7f94af7a JO |
1437 | } else if (*str == 'P') { |
1438 | precise_max = 1; | |
3c176311 JO |
1439 | } else if (*str == 'S') { |
1440 | sample_read = 1; | |
e9a7c414 ME |
1441 | } else if (*str == 'D') { |
1442 | pinned = 1; | |
5a5dfe4b AK |
1443 | } else if (*str == 'W') { |
1444 | weak = 1; | |
ab608344 | 1445 | } else |
61c45981 | 1446 | break; |
ab608344 | 1447 | |
61c45981 | 1448 | ++str; |
5242519b | 1449 | } |
ceb53fbf | 1450 | |
89812fc8 JO |
1451 | /* |
1452 | * precise ip: | |
1453 | * | |
1454 | * 0 - SAMPLE_IP can have arbitrary skid | |
1455 | * 1 - SAMPLE_IP must have constant skid | |
1456 | * 2 - SAMPLE_IP requested to have 0 skid | |
1457 | * 3 - SAMPLE_IP must have 0 skid | |
1458 | * | |
1459 | * See also PERF_RECORD_MISC_EXACT_IP | |
1460 | */ | |
1461 | if (precise > 3) | |
1462 | return -EINVAL; | |
ceb53fbf | 1463 | |
f5b1135b JO |
1464 | mod->eu = eu; |
1465 | mod->ek = ek; | |
1466 | mod->eh = eh; | |
1467 | mod->eH = eH; | |
1468 | mod->eG = eG; | |
a1e12da4 | 1469 | mod->eI = eI; |
f5b1135b | 1470 | mod->precise = precise; |
7f94af7a | 1471 | mod->precise_max = precise_max; |
f5b1135b | 1472 | mod->exclude_GH = exclude_GH; |
3c176311 | 1473 | mod->sample_read = sample_read; |
e9a7c414 | 1474 | mod->pinned = pinned; |
5a5dfe4b | 1475 | mod->weak = weak; |
e9a7c414 | 1476 | |
f5b1135b JO |
1477 | return 0; |
1478 | } | |
1479 | ||
534123f4 JO |
1480 | /* |
1481 | * Basic modifier sanity check to validate it contains only one | |
1482 | * instance of any modifier (apart from 'p') present. | |
1483 | */ | |
1484 | static int check_modifier(char *str) | |
1485 | { | |
1486 | char *p = str; | |
1487 | ||
1488 | /* The sizeof includes 0 byte as well. */ | |
5a5dfe4b | 1489 | if (strlen(str) > (sizeof("ukhGHpppPSDIW") - 1)) |
534123f4 JO |
1490 | return -1; |
1491 | ||
1492 | while (*p) { | |
1493 | if (*p != 'p' && strchr(p + 1, *p)) | |
1494 | return -1; | |
1495 | p++; | |
1496 | } | |
1497 | ||
1498 | return 0; | |
1499 | } | |
1500 | ||
f5b1135b JO |
1501 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
1502 | { | |
1503 | struct perf_evsel *evsel; | |
1504 | struct event_modifier mod; | |
1505 | ||
1506 | if (str == NULL) | |
1507 | return 0; | |
1508 | ||
534123f4 JO |
1509 | if (check_modifier(str)) |
1510 | return -EINVAL; | |
1511 | ||
f5b1135b JO |
1512 | if (!add && get_event_modifier(&mod, str, NULL)) |
1513 | return -EINVAL; | |
1514 | ||
e5cadb93 | 1515 | __evlist__for_each_entry(list, evsel) { |
f5b1135b JO |
1516 | if (add && get_event_modifier(&mod, str, evsel)) |
1517 | return -EINVAL; | |
1518 | ||
1519 | evsel->attr.exclude_user = mod.eu; | |
1520 | evsel->attr.exclude_kernel = mod.ek; | |
1521 | evsel->attr.exclude_hv = mod.eh; | |
1522 | evsel->attr.precise_ip = mod.precise; | |
1523 | evsel->attr.exclude_host = mod.eH; | |
1524 | evsel->attr.exclude_guest = mod.eG; | |
a1e12da4 | 1525 | evsel->attr.exclude_idle = mod.eI; |
f5b1135b | 1526 | evsel->exclude_GH = mod.exclude_GH; |
3c176311 | 1527 | evsel->sample_read = mod.sample_read; |
7f94af7a | 1528 | evsel->precise_max = mod.precise_max; |
5a5dfe4b | 1529 | evsel->weak_group = mod.weak; |
e9a7c414 ME |
1530 | |
1531 | if (perf_evsel__is_group_leader(evsel)) | |
1532 | evsel->attr.pinned = mod.pinned; | |
89812fc8 | 1533 | } |
ceb53fbf | 1534 | |
61c45981 PM |
1535 | return 0; |
1536 | } | |
8ad8db37 | 1537 | |
ac2ba9f3 RR |
1538 | int parse_events_name(struct list_head *list, char *name) |
1539 | { | |
1540 | struct perf_evsel *evsel; | |
1541 | ||
e5cadb93 | 1542 | __evlist__for_each_entry(list, evsel) { |
ac2ba9f3 RR |
1543 | if (!evsel->name) |
1544 | evsel->name = strdup(name); | |
1545 | } | |
1546 | ||
1547 | return 0; | |
1548 | } | |
1549 | ||
dcb4e102 KL |
1550 | static int |
1551 | comp_pmu(const void *p1, const void *p2) | |
1552 | { | |
1553 | struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1; | |
1554 | struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2; | |
1555 | ||
e312bcf1 | 1556 | return strcasecmp(pmu1->symbol, pmu2->symbol); |
dcb4e102 KL |
1557 | } |
1558 | ||
1559 | static void perf_pmu__parse_cleanup(void) | |
1560 | { | |
1561 | if (perf_pmu_events_list_num > 0) { | |
1562 | struct perf_pmu_event_symbol *p; | |
1563 | int i; | |
1564 | ||
1565 | for (i = 0; i < perf_pmu_events_list_num; i++) { | |
1566 | p = perf_pmu_events_list + i; | |
360e071b | 1567 | zfree(&p->symbol); |
dcb4e102 | 1568 | } |
506fde11 | 1569 | zfree(&perf_pmu_events_list); |
dcb4e102 KL |
1570 | perf_pmu_events_list_num = 0; |
1571 | } | |
1572 | } | |
1573 | ||
1574 | #define SET_SYMBOL(str, stype) \ | |
1575 | do { \ | |
1576 | p->symbol = str; \ | |
1577 | if (!p->symbol) \ | |
1578 | goto err; \ | |
1579 | p->type = stype; \ | |
1580 | } while (0) | |
1581 | ||
1582 | /* | |
1583 | * Read the pmu events list from sysfs | |
1584 | * Save it into perf_pmu_events_list | |
1585 | */ | |
1586 | static void perf_pmu__parse_init(void) | |
1587 | { | |
1588 | ||
1589 | struct perf_pmu *pmu = NULL; | |
1590 | struct perf_pmu_alias *alias; | |
1591 | int len = 0; | |
1592 | ||
231bb2aa AK |
1593 | pmu = NULL; |
1594 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1595 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1596 | if (strchr(alias->name, '-')) | |
1597 | len++; | |
1598 | len++; | |
1599 | } | |
1600 | } | |
1601 | ||
1602 | if (len == 0) { | |
dcb4e102 KL |
1603 | perf_pmu_events_list_num = -1; |
1604 | return; | |
1605 | } | |
dcb4e102 KL |
1606 | perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len); |
1607 | if (!perf_pmu_events_list) | |
1608 | return; | |
1609 | perf_pmu_events_list_num = len; | |
1610 | ||
1611 | len = 0; | |
231bb2aa AK |
1612 | pmu = NULL; |
1613 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1614 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1615 | struct perf_pmu_event_symbol *p = perf_pmu_events_list + len; | |
1616 | char *tmp = strchr(alias->name, '-'); | |
1617 | ||
1618 | if (tmp != NULL) { | |
1619 | SET_SYMBOL(strndup(alias->name, tmp - alias->name), | |
1620 | PMU_EVENT_SYMBOL_PREFIX); | |
1621 | p++; | |
1622 | SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX); | |
1623 | len += 2; | |
1624 | } else { | |
1625 | SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL); | |
1626 | len++; | |
1627 | } | |
dcb4e102 KL |
1628 | } |
1629 | } | |
1630 | qsort(perf_pmu_events_list, len, | |
1631 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
1632 | ||
1633 | return; | |
1634 | err: | |
1635 | perf_pmu__parse_cleanup(); | |
1636 | } | |
1637 | ||
1638 | enum perf_pmu_event_symbol_type | |
1639 | perf_pmu__parse_check(const char *name) | |
1640 | { | |
1641 | struct perf_pmu_event_symbol p, *r; | |
1642 | ||
1643 | /* scan kernel pmu events from sysfs if needed */ | |
1644 | if (perf_pmu_events_list_num == 0) | |
1645 | perf_pmu__parse_init(); | |
1646 | /* | |
1647 | * name "cpu" could be prefix of cpu-cycles or cpu// events. | |
1648 | * cpu-cycles has been handled by hardcode. | |
1649 | * So it must be cpu// events, not kernel pmu event. | |
1650 | */ | |
1651 | if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu")) | |
1652 | return PMU_EVENT_SYMBOL_ERR; | |
1653 | ||
1654 | p.symbol = strdup(name); | |
1655 | r = bsearch(&p, perf_pmu_events_list, | |
1656 | (size_t) perf_pmu_events_list_num, | |
1657 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
360e071b | 1658 | zfree(&p.symbol); |
dcb4e102 KL |
1659 | return r ? r->type : PMU_EVENT_SYMBOL_ERR; |
1660 | } | |
1661 | ||
5d9cdc11 | 1662 | static int parse_events__scanner(const char *str, void *parse_state, int start_token) |
61c45981 | 1663 | { |
89812fc8 | 1664 | YY_BUFFER_STATE buffer; |
ac20de6f | 1665 | void *scanner; |
46010ab2 | 1666 | int ret; |
bcd3279f | 1667 | |
90e2b22d | 1668 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
1669 | if (ret) |
1670 | return ret; | |
1671 | ||
1672 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 1673 | |
82ba1f2f JO |
1674 | #ifdef PARSER_DEBUG |
1675 | parse_events_debug = 1; | |
1676 | #endif | |
5d9cdc11 | 1677 | ret = parse_events_parse(parse_state, scanner); |
ac20de6f ZY |
1678 | |
1679 | parse_events__flush_buffer(buffer, scanner); | |
1680 | parse_events__delete_buffer(buffer, scanner); | |
1681 | parse_events_lex_destroy(scanner); | |
1682 | return ret; | |
1683 | } | |
bcd3279f | 1684 | |
90e2b22d JO |
1685 | /* |
1686 | * parse event config string, return a list of event terms. | |
1687 | */ | |
1688 | int parse_events_terms(struct list_head *terms, const char *str) | |
1689 | { | |
5d9cdc11 | 1690 | struct parse_events_state parse_state = { |
90e2b22d JO |
1691 | .terms = NULL, |
1692 | }; | |
1693 | int ret; | |
1694 | ||
5d9cdc11 | 1695 | ret = parse_events__scanner(str, &parse_state, PE_START_TERMS); |
90e2b22d | 1696 | if (!ret) { |
5d9cdc11 ACM |
1697 | list_splice(parse_state.terms, terms); |
1698 | zfree(&parse_state.terms); | |
90e2b22d JO |
1699 | return 0; |
1700 | } | |
1701 | ||
5d9cdc11 | 1702 | parse_events_terms__delete(parse_state.terms); |
90e2b22d JO |
1703 | return ret; |
1704 | } | |
1705 | ||
b39b8393 JO |
1706 | int parse_events(struct perf_evlist *evlist, const char *str, |
1707 | struct parse_events_error *err) | |
ac20de6f | 1708 | { |
5d9cdc11 ACM |
1709 | struct parse_events_state parse_state = { |
1710 | .list = LIST_HEAD_INIT(parse_state.list), | |
7630b3e2 WN |
1711 | .idx = evlist->nr_entries, |
1712 | .error = err, | |
1713 | .evlist = evlist, | |
ac20de6f ZY |
1714 | }; |
1715 | int ret; | |
bcd3279f | 1716 | |
5d9cdc11 | 1717 | ret = parse_events__scanner(str, &parse_state, PE_START_EVENTS); |
dcb4e102 | 1718 | perf_pmu__parse_cleanup(); |
9b4915f8 IR |
1719 | |
1720 | if (!ret && list_empty(&parse_state.list)) { | |
1721 | WARN_ONCE(true, "WARNING: event parser found nothing\n"); | |
1722 | return -1; | |
1723 | } | |
1724 | ||
1725 | /* | |
1726 | * Add list to the evlist even with errors to allow callers to clean up. | |
1727 | */ | |
1728 | perf_evlist__splice_list_tail(evlist, &parse_state.list); | |
1729 | ||
89812fc8 | 1730 | if (!ret) { |
15bfd2cc WN |
1731 | struct perf_evsel *last; |
1732 | ||
5d9cdc11 | 1733 | evlist->nr_groups += parse_state.nr_groups; |
15bfd2cc WN |
1734 | last = perf_evlist__last(evlist); |
1735 | last->cmdline_group_boundary = true; | |
1736 | ||
89812fc8 JO |
1737 | return 0; |
1738 | } | |
bcd3279f | 1739 | |
5d7be90e JO |
1740 | /* |
1741 | * There are 2 users - builtin-record and builtin-test objects. | |
1742 | * Both call perf_evlist__delete in case of error, so we dont | |
1743 | * need to bother. | |
1744 | */ | |
bcd3279f | 1745 | return ret; |
8ad8db37 IM |
1746 | } |
1747 | ||
b39b8393 JO |
1748 | #define MAX_WIDTH 1000 |
1749 | static int get_term_width(void) | |
1750 | { | |
1751 | struct winsize ws; | |
1752 | ||
1753 | get_term_dimensions(&ws); | |
1754 | return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col; | |
1755 | } | |
1756 | ||
333b5665 AK |
1757 | void parse_events_print_error(struct parse_events_error *err, |
1758 | const char *event) | |
b39b8393 JO |
1759 | { |
1760 | const char *str = "invalid or unsupported event: "; | |
1761 | char _buf[MAX_WIDTH]; | |
1762 | char *buf = (char *) event; | |
1763 | int idx = 0; | |
1764 | ||
1765 | if (err->str) { | |
1766 | /* -2 for extra '' in the final fprintf */ | |
1767 | int width = get_term_width() - 2; | |
1768 | int len_event = strlen(event); | |
1769 | int len_str, max_len, cut = 0; | |
1770 | ||
1771 | /* | |
1772 | * Maximum error index indent, we will cut | |
1773 | * the event string if it's bigger. | |
1774 | */ | |
141b2d31 | 1775 | int max_err_idx = 13; |
b39b8393 JO |
1776 | |
1777 | /* | |
1778 | * Let's be specific with the message when | |
1779 | * we have the precise error. | |
1780 | */ | |
1781 | str = "event syntax error: "; | |
1782 | len_str = strlen(str); | |
1783 | max_len = width - len_str; | |
1784 | ||
1785 | buf = _buf; | |
1786 | ||
bd1a0be5 | 1787 | /* We're cutting from the beginning. */ |
b39b8393 JO |
1788 | if (err->idx > max_err_idx) |
1789 | cut = err->idx - max_err_idx; | |
1790 | ||
1791 | strncpy(buf, event + cut, max_len); | |
1792 | ||
1793 | /* Mark cut parts with '..' on both sides. */ | |
1794 | if (cut) | |
1795 | buf[0] = buf[1] = '.'; | |
1796 | ||
1797 | if ((len_event - cut) > max_len) { | |
1798 | buf[max_len - 1] = buf[max_len - 2] = '.'; | |
1799 | buf[max_len] = 0; | |
1800 | } | |
1801 | ||
1802 | idx = len_str + err->idx - cut; | |
1803 | } | |
1804 | ||
1805 | fprintf(stderr, "%s'%s'\n", str, buf); | |
1806 | if (idx) { | |
1807 | fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str); | |
1808 | if (err->help) | |
1809 | fprintf(stderr, "\n%s\n", err->help); | |
360e071b TS |
1810 | zfree(&err->str); |
1811 | zfree(&err->help); | |
b39b8393 | 1812 | } |
b39b8393 JO |
1813 | } |
1814 | ||
1815 | #undef MAX_WIDTH | |
1816 | ||
f120f9d5 | 1817 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 1818 | int unset __maybe_unused) |
f120f9d5 JO |
1819 | { |
1820 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
b39b8393 JO |
1821 | struct parse_events_error err = { .idx = 0, }; |
1822 | int ret = parse_events(evlist, str, &err); | |
1823 | ||
333b5665 | 1824 | if (ret) { |
b39b8393 | 1825 | parse_events_print_error(&err, str); |
333b5665 AK |
1826 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); |
1827 | } | |
9175ce1f | 1828 | |
9175ce1f | 1829 | return ret; |
f120f9d5 JO |
1830 | } |
1831 | ||
4ba1faa1 WN |
1832 | static int |
1833 | foreach_evsel_in_last_glob(struct perf_evlist *evlist, | |
1834 | int (*func)(struct perf_evsel *evsel, | |
1835 | const void *arg), | |
1836 | const void *arg) | |
c171b552 | 1837 | { |
69aad6f1 | 1838 | struct perf_evsel *last = NULL; |
4ba1faa1 | 1839 | int err; |
c171b552 | 1840 | |
854f7363 WN |
1841 | /* |
1842 | * Don't return when list_empty, give func a chance to report | |
1843 | * error when it found last == NULL. | |
1844 | * | |
1845 | * So no need to WARN here, let *func do this. | |
1846 | */ | |
361c99a6 | 1847 | if (evlist->nr_entries > 0) |
0c21f736 | 1848 | last = perf_evlist__last(evlist); |
69aad6f1 | 1849 | |
15bfd2cc | 1850 | do { |
4ba1faa1 WN |
1851 | err = (*func)(last, arg); |
1852 | if (err) | |
15bfd2cc | 1853 | return -1; |
4ba1faa1 WN |
1854 | if (!last) |
1855 | return 0; | |
15bfd2cc WN |
1856 | |
1857 | if (last->node.prev == &evlist->entries) | |
1858 | return 0; | |
1859 | last = list_entry(last->node.prev, struct perf_evsel, node); | |
1860 | } while (!last->cmdline_group_boundary); | |
c171b552 LZ |
1861 | |
1862 | return 0; | |
1863 | } | |
1864 | ||
4ba1faa1 WN |
1865 | static int set_filter(struct perf_evsel *evsel, const void *arg) |
1866 | { | |
1867 | const char *str = arg; | |
1e857484 MP |
1868 | bool found = false; |
1869 | int nr_addr_filters = 0; | |
1870 | struct perf_pmu *pmu = NULL; | |
4ba1faa1 | 1871 | |
1e857484 MP |
1872 | if (evsel == NULL) |
1873 | goto err; | |
1874 | ||
1875 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { | |
1876 | if (perf_evsel__append_tp_filter(evsel, str) < 0) { | |
1877 | fprintf(stderr, | |
1878 | "not enough memory to hold filter string\n"); | |
1879 | return -1; | |
1880 | } | |
1881 | ||
1882 | return 0; | |
4ba1faa1 WN |
1883 | } |
1884 | ||
1e857484 MP |
1885 | while ((pmu = perf_pmu__scan(pmu)) != NULL) |
1886 | if (pmu->type == evsel->attr.type) { | |
1887 | found = true; | |
1888 | break; | |
1889 | } | |
1890 | ||
1891 | if (found) | |
1892 | perf_pmu__scan_file(pmu, "nr_addr_filters", | |
1893 | "%d", &nr_addr_filters); | |
1894 | ||
1895 | if (!nr_addr_filters) | |
1896 | goto err; | |
1897 | ||
1898 | if (perf_evsel__append_addr_filter(evsel, str) < 0) { | |
4ba1faa1 WN |
1899 | fprintf(stderr, |
1900 | "not enough memory to hold filter string\n"); | |
1901 | return -1; | |
1902 | } | |
1903 | ||
1904 | return 0; | |
1e857484 MP |
1905 | |
1906 | err: | |
1907 | fprintf(stderr, | |
1908 | "--filter option should follow a -e tracepoint or HW tracer option\n"); | |
1909 | ||
1910 | return -1; | |
4ba1faa1 WN |
1911 | } |
1912 | ||
1913 | int parse_filter(const struct option *opt, const char *str, | |
1914 | int unset __maybe_unused) | |
1915 | { | |
1916 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
1917 | ||
1918 | return foreach_evsel_in_last_glob(evlist, set_filter, | |
1919 | (const void *)str); | |
1920 | } | |
1921 | ||
1922 | static int add_exclude_perf_filter(struct perf_evsel *evsel, | |
1923 | const void *arg __maybe_unused) | |
1924 | { | |
1925 | char new_filter[64]; | |
1926 | ||
1927 | if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) { | |
1928 | fprintf(stderr, | |
1929 | "--exclude-perf option should follow a -e tracepoint option\n"); | |
1930 | return -1; | |
1931 | } | |
1932 | ||
1933 | snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid()); | |
1934 | ||
3541c034 | 1935 | if (perf_evsel__append_tp_filter(evsel, new_filter) < 0) { |
4ba1faa1 WN |
1936 | fprintf(stderr, |
1937 | "not enough memory to hold filter string\n"); | |
1938 | return -1; | |
1939 | } | |
1940 | ||
1941 | return 0; | |
1942 | } | |
1943 | ||
1944 | int exclude_perf(const struct option *opt, | |
1945 | const char *arg __maybe_unused, | |
1946 | int unset __maybe_unused) | |
1947 | { | |
1948 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
1949 | ||
1950 | return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter, | |
1951 | NULL); | |
1952 | } | |
1953 | ||
86847b62 | 1954 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
1955 | "Hardware event", |
1956 | "Software event", | |
1957 | "Tracepoint event", | |
1958 | "Hardware cache event", | |
41bdcb23 LW |
1959 | "Raw hardware event descriptor", |
1960 | "Hardware breakpoint", | |
86847b62 TG |
1961 | }; |
1962 | ||
ab0e4800 YS |
1963 | static int cmp_string(const void *a, const void *b) |
1964 | { | |
1965 | const char * const *as = a; | |
1966 | const char * const *bs = b; | |
1967 | ||
1968 | return strcmp(*as, *bs); | |
1969 | } | |
1970 | ||
f6bdafef JB |
1971 | /* |
1972 | * Print the events from <debugfs_mount_point>/tracing/events | |
1973 | */ | |
1974 | ||
a3277d2d FW |
1975 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
1976 | bool name_only) | |
f6bdafef JB |
1977 | { |
1978 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 1979 | struct dirent *sys_dirent, *evt_dirent; |
f6bdafef | 1980 | char evt_path[MAXPATHLEN]; |
725b1368 | 1981 | char dir_path[MAXPATHLEN]; |
ab0e4800 YS |
1982 | char **evt_list = NULL; |
1983 | unsigned int evt_i = 0, evt_num = 0; | |
1984 | bool evt_num_known = false; | |
f6bdafef | 1985 | |
ab0e4800 | 1986 | restart: |
ebf294bf | 1987 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 1988 | if (!sys_dir) |
725b1368 | 1989 | return; |
6b58e7f1 | 1990 | |
ab0e4800 YS |
1991 | if (evt_num_known) { |
1992 | evt_list = zalloc(sizeof(char *) * evt_num); | |
1993 | if (!evt_list) | |
1994 | goto out_close_sys_dir; | |
1995 | } | |
1996 | ||
22a9f41b | 1997 | for_each_subsystem(sys_dir, sys_dirent) { |
48000a1a | 1998 | if (subsys_glob != NULL && |
22a9f41b | 1999 | !strglobmatch(sys_dirent->d_name, subsys_glob)) |
668b8788 | 2000 | continue; |
725b1368 | 2001 | |
ebf294bf | 2002 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 2003 | sys_dirent->d_name); |
725b1368 ED |
2004 | evt_dir = opendir(dir_path); |
2005 | if (!evt_dir) | |
6b58e7f1 | 2006 | continue; |
725b1368 | 2007 | |
22a9f41b | 2008 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
48000a1a | 2009 | if (event_glob != NULL && |
22a9f41b | 2010 | !strglobmatch(evt_dirent->d_name, event_glob)) |
668b8788 ACM |
2011 | continue; |
2012 | ||
ab0e4800 YS |
2013 | if (!evt_num_known) { |
2014 | evt_num++; | |
a3277d2d FW |
2015 | continue; |
2016 | } | |
2017 | ||
f6bdafef | 2018 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2019 | sys_dirent->d_name, evt_dirent->d_name); |
ab0e4800 YS |
2020 | |
2021 | evt_list[evt_i] = strdup(evt_path); | |
2022 | if (evt_list[evt_i] == NULL) | |
2023 | goto out_close_evt_dir; | |
2024 | evt_i++; | |
f6bdafef JB |
2025 | } |
2026 | closedir(evt_dir); | |
2027 | } | |
f6bdafef | 2028 | closedir(sys_dir); |
ab0e4800 YS |
2029 | |
2030 | if (!evt_num_known) { | |
2031 | evt_num_known = true; | |
2032 | goto restart; | |
2033 | } | |
2034 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2035 | evt_i = 0; | |
2036 | while (evt_i < evt_num) { | |
2037 | if (name_only) { | |
2038 | printf("%s ", evt_list[evt_i++]); | |
2039 | continue; | |
2040 | } | |
2041 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2042 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2043 | } | |
dfc431cb | 2044 | if (evt_num && pager_in_use()) |
ab0e4800 YS |
2045 | printf("\n"); |
2046 | ||
2047 | out_free: | |
2048 | evt_num = evt_i; | |
2049 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2050 | zfree(&evt_list[evt_i]); | |
2051 | zfree(&evt_list); | |
2052 | return; | |
2053 | ||
2054 | out_close_evt_dir: | |
2055 | closedir(evt_dir); | |
2056 | out_close_sys_dir: | |
2057 | closedir(sys_dir); | |
2058 | ||
2059 | printf("FATAL: not enough memory to print %s\n", | |
2060 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2061 | if (evt_list) | |
2062 | goto out_free; | |
f6bdafef JB |
2063 | } |
2064 | ||
20c457b8 TR |
2065 | /* |
2066 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
2067 | */ | |
2068 | ||
2069 | int is_valid_tracepoint(const char *event_string) | |
2070 | { | |
2071 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 2072 | struct dirent *sys_dirent, *evt_dirent; |
20c457b8 TR |
2073 | char evt_path[MAXPATHLEN]; |
2074 | char dir_path[MAXPATHLEN]; | |
2075 | ||
ebf294bf | 2076 | sys_dir = opendir(tracing_events_path); |
20c457b8 TR |
2077 | if (!sys_dir) |
2078 | return 0; | |
2079 | ||
22a9f41b | 2080 | for_each_subsystem(sys_dir, sys_dirent) { |
20c457b8 | 2081 | |
ebf294bf | 2082 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 2083 | sys_dirent->d_name); |
20c457b8 TR |
2084 | evt_dir = opendir(dir_path); |
2085 | if (!evt_dir) | |
2086 | continue; | |
2087 | ||
22a9f41b | 2088 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
20c457b8 | 2089 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2090 | sys_dirent->d_name, evt_dirent->d_name); |
20c457b8 TR |
2091 | if (!strcmp(evt_path, event_string)) { |
2092 | closedir(evt_dir); | |
2093 | closedir(sys_dir); | |
2094 | return 1; | |
2095 | } | |
2096 | } | |
2097 | closedir(evt_dir); | |
2098 | } | |
2099 | closedir(sys_dir); | |
2100 | return 0; | |
2101 | } | |
2102 | ||
b41f1cec NK |
2103 | static bool is_event_supported(u8 type, unsigned config) |
2104 | { | |
2105 | bool ret = true; | |
88fee52e | 2106 | int open_return; |
b41f1cec NK |
2107 | struct perf_evsel *evsel; |
2108 | struct perf_event_attr attr = { | |
2109 | .type = type, | |
2110 | .config = config, | |
2111 | .disabled = 1, | |
b41f1cec | 2112 | }; |
89896051 ACM |
2113 | struct thread_map *tmap = thread_map__new_by_tid(0); |
2114 | ||
2115 | if (tmap == NULL) | |
2116 | return false; | |
b41f1cec | 2117 | |
ef503831 | 2118 | evsel = perf_evsel__new(&attr); |
b41f1cec | 2119 | if (evsel) { |
89896051 | 2120 | open_return = perf_evsel__open(evsel, NULL, tmap); |
88fee52e VW |
2121 | ret = open_return >= 0; |
2122 | ||
2123 | if (open_return == -EACCES) { | |
2124 | /* | |
2125 | * This happens if the paranoid value | |
2126 | * /proc/sys/kernel/perf_event_paranoid is set to 2 | |
2127 | * Re-run with exclude_kernel set; we don't do that | |
2128 | * by default as some ARM machines do not support it. | |
2129 | * | |
2130 | */ | |
2131 | evsel->attr.exclude_kernel = 1; | |
89896051 | 2132 | ret = perf_evsel__open(evsel, NULL, tmap) >= 0; |
88fee52e | 2133 | } |
b41f1cec NK |
2134 | perf_evsel__delete(evsel); |
2135 | } | |
2136 | ||
baf1fbef | 2137 | thread_map__put(tmap); |
b41f1cec NK |
2138 | return ret; |
2139 | } | |
2140 | ||
40218dae MH |
2141 | void print_sdt_events(const char *subsys_glob, const char *event_glob, |
2142 | bool name_only) | |
2143 | { | |
2144 | struct probe_cache *pcache; | |
2145 | struct probe_cache_entry *ent; | |
2146 | struct strlist *bidlist, *sdtlist; | |
2147 | struct strlist_config cfg = {.dont_dupstr = true}; | |
2148 | struct str_node *nd, *nd2; | |
2149 | char *buf, *path, *ptr = NULL; | |
2150 | bool show_detail = false; | |
2151 | int ret; | |
2152 | ||
2153 | sdtlist = strlist__new(NULL, &cfg); | |
2154 | if (!sdtlist) { | |
2155 | pr_debug("Failed to allocate new strlist for SDT\n"); | |
2156 | return; | |
2157 | } | |
2158 | bidlist = build_id_cache__list_all(true); | |
2159 | if (!bidlist) { | |
2160 | pr_debug("Failed to get buildids: %d\n", errno); | |
2161 | return; | |
2162 | } | |
2163 | strlist__for_each_entry(nd, bidlist) { | |
f045b8c4 | 2164 | pcache = probe_cache__new(nd->s, NULL); |
40218dae MH |
2165 | if (!pcache) |
2166 | continue; | |
2167 | list_for_each_entry(ent, &pcache->entries, node) { | |
2168 | if (!ent->sdt) | |
2169 | continue; | |
2170 | if (subsys_glob && | |
2171 | !strglobmatch(ent->pev.group, subsys_glob)) | |
2172 | continue; | |
2173 | if (event_glob && | |
2174 | !strglobmatch(ent->pev.event, event_glob)) | |
2175 | continue; | |
2176 | ret = asprintf(&buf, "%s:%s@%s", ent->pev.group, | |
2177 | ent->pev.event, nd->s); | |
2178 | if (ret > 0) | |
2179 | strlist__add(sdtlist, buf); | |
2180 | } | |
2181 | probe_cache__delete(pcache); | |
2182 | } | |
2183 | strlist__delete(bidlist); | |
2184 | ||
2185 | strlist__for_each_entry(nd, sdtlist) { | |
2186 | buf = strchr(nd->s, '@'); | |
2187 | if (buf) | |
2188 | *(buf++) = '\0'; | |
2189 | if (name_only) { | |
2190 | printf("%s ", nd->s); | |
2191 | continue; | |
2192 | } | |
2193 | nd2 = strlist__next(nd); | |
2194 | if (nd2) { | |
2195 | ptr = strchr(nd2->s, '@'); | |
2196 | if (ptr) | |
2197 | *ptr = '\0'; | |
2198 | if (strcmp(nd->s, nd2->s) == 0) | |
2199 | show_detail = true; | |
2200 | } | |
2201 | if (show_detail) { | |
2202 | path = build_id_cache__origname(buf); | |
2203 | ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf); | |
2204 | if (ret > 0) { | |
2205 | printf(" %-50s [%s]\n", buf, "SDT event"); | |
2206 | free(buf); | |
2207 | } | |
1f6e7163 | 2208 | free(path); |
40218dae MH |
2209 | } else |
2210 | printf(" %-50s [%s]\n", nd->s, "SDT event"); | |
2211 | if (nd2) { | |
2212 | if (strcmp(nd->s, nd2->s) != 0) | |
2213 | show_detail = false; | |
2214 | if (ptr) | |
2215 | *ptr = '@'; | |
2216 | } | |
2217 | } | |
2218 | strlist__delete(sdtlist); | |
2219 | } | |
2220 | ||
a3277d2d | 2221 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 | 2222 | { |
ab0e4800 | 2223 | unsigned int type, op, i, evt_i = 0, evt_num = 0; |
0b668bc9 | 2224 | char name[64]; |
ab0e4800 YS |
2225 | char **evt_list = NULL; |
2226 | bool evt_num_known = false; | |
2227 | ||
2228 | restart: | |
2229 | if (evt_num_known) { | |
2230 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2231 | if (!evt_list) | |
2232 | goto out_enomem; | |
2233 | } | |
668b8788 ACM |
2234 | |
2235 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
2236 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
2237 | /* skip invalid cache type */ | |
0b668bc9 | 2238 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
2239 | continue; |
2240 | ||
2241 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
2242 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
2243 | name, sizeof(name)); | |
947b4ad1 | 2244 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
2245 | continue; |
2246 | ||
b41f1cec NK |
2247 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
2248 | type | (op << 8) | (i << 16))) | |
2249 | continue; | |
2250 | ||
ab0e4800 YS |
2251 | if (!evt_num_known) { |
2252 | evt_num++; | |
2253 | continue; | |
2254 | } | |
2255 | ||
2256 | evt_list[evt_i] = strdup(name); | |
2257 | if (evt_list[evt_i] == NULL) | |
2258 | goto out_enomem; | |
2259 | evt_i++; | |
668b8788 ACM |
2260 | } |
2261 | } | |
2262 | } | |
2263 | ||
ab0e4800 YS |
2264 | if (!evt_num_known) { |
2265 | evt_num_known = true; | |
2266 | goto restart; | |
2267 | } | |
2268 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2269 | evt_i = 0; | |
2270 | while (evt_i < evt_num) { | |
2271 | if (name_only) { | |
2272 | printf("%s ", evt_list[evt_i++]); | |
2273 | continue; | |
2274 | } | |
2275 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2276 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2277 | } | |
dfc431cb | 2278 | if (evt_num && pager_in_use()) |
dc098b35 | 2279 | printf("\n"); |
ab0e4800 YS |
2280 | |
2281 | out_free: | |
2282 | evt_num = evt_i; | |
2283 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2284 | zfree(&evt_list[evt_i]); | |
2285 | zfree(&evt_list); | |
2286 | return evt_num; | |
2287 | ||
2288 | out_enomem: | |
2289 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2290 | if (evt_list) | |
2291 | goto out_free; | |
2292 | return evt_num; | |
668b8788 ACM |
2293 | } |
2294 | ||
705750f2 | 2295 | void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
2296 | struct event_symbol *syms, unsigned max, |
2297 | bool name_only) | |
8ad8db37 | 2298 | { |
ab0e4800 | 2299 | unsigned int i, evt_i = 0, evt_num = 0; |
947b4ad1 | 2300 | char name[MAX_NAME_LEN]; |
ab0e4800 YS |
2301 | char **evt_list = NULL; |
2302 | bool evt_num_known = false; | |
2303 | ||
2304 | restart: | |
2305 | if (evt_num_known) { | |
2306 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2307 | if (!evt_list) | |
2308 | goto out_enomem; | |
2309 | syms -= max; | |
2310 | } | |
8ad8db37 | 2311 | |
1dc12760 | 2312 | for (i = 0; i < max; i++, syms++) { |
668b8788 | 2313 | |
e37df6c7 | 2314 | if (event_glob != NULL && syms->symbol != NULL && |
668b8788 ACM |
2315 | !(strglobmatch(syms->symbol, event_glob) || |
2316 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
2317 | continue; | |
8ad8db37 | 2318 | |
b41f1cec NK |
2319 | if (!is_event_supported(type, i)) |
2320 | continue; | |
2321 | ||
ab0e4800 YS |
2322 | if (!evt_num_known) { |
2323 | evt_num++; | |
a3277d2d FW |
2324 | continue; |
2325 | } | |
2326 | ||
ab0e4800 | 2327 | if (!name_only && strlen(syms->alias)) |
947b4ad1 | 2328 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 2329 | else |
9d7a5936 | 2330 | strlcpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 2331 | |
ab0e4800 YS |
2332 | evt_list[evt_i] = strdup(name); |
2333 | if (evt_list[evt_i] == NULL) | |
2334 | goto out_enomem; | |
2335 | evt_i++; | |
8ad8db37 IM |
2336 | } |
2337 | ||
ab0e4800 YS |
2338 | if (!evt_num_known) { |
2339 | evt_num_known = true; | |
2340 | goto restart; | |
2341 | } | |
2342 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2343 | evt_i = 0; | |
2344 | while (evt_i < evt_num) { | |
2345 | if (name_only) { | |
2346 | printf("%s ", evt_list[evt_i++]); | |
2347 | continue; | |
2348 | } | |
2349 | printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); | |
2350 | } | |
dfc431cb | 2351 | if (evt_num && pager_in_use()) |
668b8788 | 2352 | printf("\n"); |
ab0e4800 YS |
2353 | |
2354 | out_free: | |
2355 | evt_num = evt_i; | |
2356 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2357 | zfree(&evt_list[evt_i]); | |
2358 | zfree(&evt_list); | |
2359 | return; | |
2360 | ||
2361 | out_enomem: | |
2362 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]); | |
2363 | if (evt_list) | |
2364 | goto out_free; | |
1dc12760 JO |
2365 | } |
2366 | ||
2367 | /* | |
2368 | * Print the help text for the event symbols: | |
2369 | */ | |
c8d6828a | 2370 | void print_events(const char *event_glob, bool name_only, bool quiet_flag, |
bf874fcf | 2371 | bool long_desc, bool details_flag) |
1dc12760 | 2372 | { |
1dc12760 | 2373 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, |
a3277d2d | 2374 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
2375 | |
2376 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 2377 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
1dc12760 | 2378 | |
a3277d2d | 2379 | print_hwcache_events(event_glob, name_only); |
668b8788 | 2380 | |
bf874fcf AK |
2381 | print_pmu_events(event_glob, name_only, quiet_flag, long_desc, |
2382 | details_flag); | |
dc098b35 | 2383 | |
668b8788 ACM |
2384 | if (event_glob != NULL) |
2385 | return; | |
73c24cb8 | 2386 | |
a3277d2d | 2387 | if (!name_only) { |
a3277d2d FW |
2388 | printf(" %-50s [%s]\n", |
2389 | "rNNN", | |
2390 | event_type_descriptors[PERF_TYPE_RAW]); | |
2391 | printf(" %-50s [%s]\n", | |
2392 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
2393 | event_type_descriptors[PERF_TYPE_RAW]); | |
dfc431cb ACM |
2394 | if (pager_in_use()) |
2395 | printf(" (see 'man perf-list' on how to encode it)\n\n"); | |
a3277d2d FW |
2396 | |
2397 | printf(" %-50s [%s]\n", | |
3741eb9f | 2398 | "mem:<addr>[/len][:access]", |
41bdcb23 | 2399 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
dfc431cb ACM |
2400 | if (pager_in_use()) |
2401 | printf("\n"); | |
a3277d2d | 2402 | } |
1b290d67 | 2403 | |
a3277d2d | 2404 | print_tracepoint_events(NULL, NULL, name_only); |
40218dae MH |
2405 | |
2406 | print_sdt_events(NULL, NULL, name_only); | |
71b0acce AK |
2407 | |
2408 | metricgroup__print(true, true, NULL, name_only); | |
8ad8db37 | 2409 | } |
8f707d84 | 2410 | |
6cee6cd3 | 2411 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 2412 | { |
16fa7e82 | 2413 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
2414 | } |
2415 | ||
67b49b38 JO |
2416 | static int new_term(struct parse_events_term **_term, |
2417 | struct parse_events_term *temp, | |
2418 | char *str, u64 num) | |
8f707d84 | 2419 | { |
6cee6cd3 | 2420 | struct parse_events_term *term; |
8f707d84 | 2421 | |
67b49b38 | 2422 | term = malloc(sizeof(*term)); |
8f707d84 JO |
2423 | if (!term) |
2424 | return -ENOMEM; | |
2425 | ||
67b49b38 | 2426 | *term = *temp; |
8f707d84 | 2427 | INIT_LIST_HEAD(&term->list); |
59622fd4 | 2428 | term->weak = false; |
8f707d84 | 2429 | |
67b49b38 | 2430 | switch (term->type_val) { |
8f707d84 JO |
2431 | case PARSE_EVENTS__TERM_TYPE_NUM: |
2432 | term->val.num = num; | |
2433 | break; | |
2434 | case PARSE_EVENTS__TERM_TYPE_STR: | |
2435 | term->val.str = str; | |
2436 | break; | |
2437 | default: | |
4be8be6b | 2438 | free(term); |
8f707d84 JO |
2439 | return -EINVAL; |
2440 | } | |
2441 | ||
2442 | *_term = term; | |
2443 | return 0; | |
2444 | } | |
2445 | ||
6cee6cd3 | 2446 | int parse_events_term__num(struct parse_events_term **term, |
cecf3a2e | 2447 | int type_term, char *config, u64 num, |
99e7138e | 2448 | bool no_value, |
bb78ce7d | 2449 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2450 | { |
bb78ce7d AH |
2451 | YYLTYPE *loc_term = loc_term_; |
2452 | YYLTYPE *loc_val = loc_val_; | |
2453 | ||
67b49b38 JO |
2454 | struct parse_events_term temp = { |
2455 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
2456 | .type_term = type_term, | |
2457 | .config = config, | |
99e7138e | 2458 | .no_value = no_value, |
67b49b38 JO |
2459 | .err_term = loc_term ? loc_term->first_column : 0, |
2460 | .err_val = loc_val ? loc_val->first_column : 0, | |
2461 | }; | |
2462 | ||
2463 | return new_term(term, &temp, NULL, num); | |
16fa7e82 JO |
2464 | } |
2465 | ||
6cee6cd3 | 2466 | int parse_events_term__str(struct parse_events_term **term, |
cecf3a2e | 2467 | int type_term, char *config, char *str, |
bb78ce7d | 2468 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2469 | { |
bb78ce7d AH |
2470 | YYLTYPE *loc_term = loc_term_; |
2471 | YYLTYPE *loc_val = loc_val_; | |
2472 | ||
67b49b38 JO |
2473 | struct parse_events_term temp = { |
2474 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2475 | .type_term = type_term, | |
2476 | .config = config, | |
2477 | .err_term = loc_term ? loc_term->first_column : 0, | |
2478 | .err_val = loc_val ? loc_val->first_column : 0, | |
2479 | }; | |
2480 | ||
2481 | return new_term(term, &temp, str, 0); | |
16fa7e82 JO |
2482 | } |
2483 | ||
6cee6cd3 | 2484 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
2485 | char *config, unsigned idx) |
2486 | { | |
2487 | struct event_symbol *sym; | |
67b49b38 JO |
2488 | struct parse_events_term temp = { |
2489 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2490 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
2491 | .config = config ?: (char *) "event", | |
2492 | }; | |
1d33d6dc JO |
2493 | |
2494 | BUG_ON(idx >= PERF_COUNT_HW_MAX); | |
2495 | sym = &event_symbols_hw[idx]; | |
2496 | ||
67b49b38 | 2497 | return new_term(term, &temp, (char *) sym->symbol, 0); |
1d33d6dc JO |
2498 | } |
2499 | ||
6cee6cd3 ACM |
2500 | int parse_events_term__clone(struct parse_events_term **new, |
2501 | struct parse_events_term *term) | |
a6146d50 | 2502 | { |
67b49b38 JO |
2503 | struct parse_events_term temp = { |
2504 | .type_val = term->type_val, | |
2505 | .type_term = term->type_term, | |
2506 | .config = term->config, | |
2507 | .err_term = term->err_term, | |
2508 | .err_val = term->err_val, | |
2509 | }; | |
2510 | ||
2511 | return new_term(new, &temp, term->val.str, term->val.num); | |
a6146d50 ZY |
2512 | } |
2513 | ||
8255718f AK |
2514 | int parse_events_copy_term_list(struct list_head *old, |
2515 | struct list_head **new) | |
2516 | { | |
2517 | struct parse_events_term *term, *n; | |
2518 | int ret; | |
2519 | ||
2520 | if (!old) { | |
2521 | *new = NULL; | |
2522 | return 0; | |
2523 | } | |
2524 | ||
2525 | *new = malloc(sizeof(struct list_head)); | |
2526 | if (!*new) | |
2527 | return -ENOMEM; | |
2528 | INIT_LIST_HEAD(*new); | |
2529 | ||
2530 | list_for_each_entry (term, old, list) { | |
2531 | ret = parse_events_term__clone(&n, term); | |
2532 | if (ret) | |
2533 | return ret; | |
2534 | list_add_tail(&n->list, *new); | |
2535 | } | |
2536 | return 0; | |
2537 | } | |
2538 | ||
fc0a2c1d | 2539 | void parse_events_terms__purge(struct list_head *terms) |
8f707d84 | 2540 | { |
6cee6cd3 | 2541 | struct parse_events_term *term, *h; |
8f707d84 | 2542 | |
a8adfceb | 2543 | list_for_each_entry_safe(term, h, terms, list) { |
2d055bf2 | 2544 | if (term->array.nr_ranges) |
360e071b | 2545 | zfree(&term->array.ranges); |
a8adfceb | 2546 | list_del_init(&term->list); |
8f707d84 | 2547 | free(term); |
a8adfceb | 2548 | } |
8f707d84 | 2549 | } |
b39b8393 | 2550 | |
2146afc6 | 2551 | void parse_events_terms__delete(struct list_head *terms) |
fc0a2c1d | 2552 | { |
2146afc6 ACM |
2553 | if (!terms) |
2554 | return; | |
fc0a2c1d | 2555 | parse_events_terms__purge(terms); |
d20a5f2b | 2556 | free(terms); |
fc0a2c1d ACM |
2557 | } |
2558 | ||
2d055bf2 WN |
2559 | void parse_events__clear_array(struct parse_events_array *a) |
2560 | { | |
360e071b | 2561 | zfree(&a->ranges); |
2d055bf2 WN |
2562 | } |
2563 | ||
5d9cdc11 | 2564 | void parse_events_evlist_error(struct parse_events_state *parse_state, |
b39b8393 JO |
2565 | int idx, const char *str) |
2566 | { | |
5d9cdc11 | 2567 | struct parse_events_error *err = parse_state->error; |
b39b8393 | 2568 | |
a6ced2be AH |
2569 | if (!err) |
2570 | return; | |
b39b8393 JO |
2571 | err->idx = idx; |
2572 | err->str = strdup(str); | |
2573 | WARN_ONCE(!err->str, "WARNING: failed to allocate error string"); | |
2574 | } | |
ffeb883e | 2575 | |
17cb5f84 WN |
2576 | static void config_terms_list(char *buf, size_t buf_sz) |
2577 | { | |
2578 | int i; | |
2579 | bool first = true; | |
2580 | ||
2581 | buf[0] = '\0'; | |
2582 | for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) { | |
2583 | const char *name = config_term_names[i]; | |
2584 | ||
1669e509 WN |
2585 | if (!config_term_avail(i, NULL)) |
2586 | continue; | |
17cb5f84 WN |
2587 | if (!name) |
2588 | continue; | |
2589 | if (name[0] == '<') | |
2590 | continue; | |
2591 | ||
2592 | if (strlen(buf) + strlen(name) + 2 >= buf_sz) | |
2593 | return; | |
2594 | ||
2595 | if (!first) | |
2596 | strcat(buf, ","); | |
2597 | else | |
2598 | first = false; | |
2599 | strcat(buf, name); | |
2600 | } | |
2601 | } | |
2602 | ||
ffeb883e HK |
2603 | /* |
2604 | * Return string contains valid config terms of an event. | |
2605 | * @additional_terms: For terms such as PMU sysfs terms. | |
2606 | */ | |
2607 | char *parse_events_formats_error_string(char *additional_terms) | |
2608 | { | |
2609 | char *str; | |
626a6b78 | 2610 | /* "no-overwrite" is the longest name */ |
17cb5f84 | 2611 | char static_terms[__PARSE_EVENTS__TERM_TYPE_NR * |
626a6b78 | 2612 | (sizeof("no-overwrite") - 1)]; |
ffeb883e | 2613 | |
17cb5f84 | 2614 | config_terms_list(static_terms, sizeof(static_terms)); |
ffeb883e HK |
2615 | /* valid terms */ |
2616 | if (additional_terms) { | |
26dee028 WN |
2617 | if (asprintf(&str, "valid terms: %s,%s", |
2618 | additional_terms, static_terms) < 0) | |
ffeb883e HK |
2619 | goto fail; |
2620 | } else { | |
26dee028 | 2621 | if (asprintf(&str, "valid terms: %s", static_terms) < 0) |
ffeb883e HK |
2622 | goto fail; |
2623 | } | |
2624 | return str; | |
2625 | ||
2626 | fail: | |
2627 | return NULL; | |
2628 | } |