Commit | Line | Data |
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d2709c7c | 1 | #include <linux/hw_breakpoint.h> |
8dd2a131 | 2 | #include <linux/err.h> |
8ad8db37 | 3 | #include "util.h" |
6b58e7f1 | 4 | #include "../perf.h" |
361c99a6 | 5 | #include "evlist.h" |
69aad6f1 | 6 | #include "evsel.h" |
4b6ab94e | 7 | #include <subcmd/parse-options.h> |
8ad8db37 | 8 | #include "parse-events.h" |
4b6ab94e | 9 | #include <subcmd/exec-cmd.h> |
42f60c2d | 10 | #include "string.h" |
5aab621b | 11 | #include "symbol.h" |
5beeded1 | 12 | #include "cache.h" |
8755a8f2 | 13 | #include "header.h" |
84c86ca1 | 14 | #include "bpf-loader.h" |
6e81c74c | 15 | #include "debug.h" |
592d5a6b | 16 | #include <api/fs/tracing_path.h> |
ac20de6f | 17 | #include "parse-events-bison.h" |
90e2b22d | 18 | #define YY_EXTRA_TYPE int |
89812fc8 | 19 | #include "parse-events-flex.h" |
5f537a26 | 20 | #include "pmu.h" |
b41f1cec | 21 | #include "thread_map.h" |
f30a79b0 | 22 | #include "cpumap.h" |
40218dae | 23 | #include "probe-file.h" |
b39b8393 | 24 | #include "asm/bug.h" |
ac12f676 | 25 | #include "util/parse-branch-options.h" |
89812fc8 JO |
26 | |
27 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 28 | |
82ba1f2f JO |
29 | #ifdef PARSER_DEBUG |
30 | extern int parse_events_debug; | |
31 | #endif | |
ac20de6f | 32 | int parse_events_parse(void *data, void *scanner); |
e637d177 HK |
33 | static int get_config_terms(struct list_head *head_config, |
34 | struct list_head *head_terms __maybe_unused); | |
bcd3279f | 35 | |
dcb4e102 KL |
36 | static struct perf_pmu_event_symbol *perf_pmu_events_list; |
37 | /* | |
38 | * The variable indicates the number of supported pmu event symbols. | |
39 | * 0 means not initialized and ready to init | |
40 | * -1 means failed to init, don't try anymore | |
41 | * >0 is the number of supported pmu event symbols | |
42 | */ | |
43 | static int perf_pmu_events_list_num; | |
44 | ||
705750f2 | 45 | struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
1dc12760 JO |
46 | [PERF_COUNT_HW_CPU_CYCLES] = { |
47 | .symbol = "cpu-cycles", | |
48 | .alias = "cycles", | |
49 | }, | |
50 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
51 | .symbol = "instructions", | |
52 | .alias = "", | |
53 | }, | |
54 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
55 | .symbol = "cache-references", | |
56 | .alias = "", | |
57 | }, | |
58 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
59 | .symbol = "cache-misses", | |
60 | .alias = "", | |
61 | }, | |
62 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
63 | .symbol = "branch-instructions", | |
64 | .alias = "branches", | |
65 | }, | |
66 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
67 | .symbol = "branch-misses", | |
68 | .alias = "", | |
69 | }, | |
70 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
71 | .symbol = "bus-cycles", | |
72 | .alias = "", | |
73 | }, | |
74 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
75 | .symbol = "stalled-cycles-frontend", | |
76 | .alias = "idle-cycles-frontend", | |
77 | }, | |
78 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
79 | .symbol = "stalled-cycles-backend", | |
80 | .alias = "idle-cycles-backend", | |
81 | }, | |
82 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
83 | .symbol = "ref-cycles", | |
84 | .alias = "", | |
85 | }, | |
86 | }; | |
87 | ||
705750f2 | 88 | struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { |
1dc12760 JO |
89 | [PERF_COUNT_SW_CPU_CLOCK] = { |
90 | .symbol = "cpu-clock", | |
91 | .alias = "", | |
92 | }, | |
93 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
94 | .symbol = "task-clock", | |
95 | .alias = "", | |
96 | }, | |
97 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
98 | .symbol = "page-faults", | |
99 | .alias = "faults", | |
100 | }, | |
101 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
102 | .symbol = "context-switches", | |
103 | .alias = "cs", | |
104 | }, | |
105 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
106 | .symbol = "cpu-migrations", | |
107 | .alias = "migrations", | |
108 | }, | |
109 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
110 | .symbol = "minor-faults", | |
111 | .alias = "", | |
112 | }, | |
113 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
114 | .symbol = "major-faults", | |
115 | .alias = "", | |
116 | }, | |
117 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
118 | .symbol = "alignment-faults", | |
119 | .alias = "", | |
120 | }, | |
121 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
122 | .symbol = "emulation-faults", | |
123 | .alias = "", | |
124 | }, | |
d22d1a2a AH |
125 | [PERF_COUNT_SW_DUMMY] = { |
126 | .symbol = "dummy", | |
127 | .alias = "", | |
128 | }, | |
bae9cc41 ACM |
129 | [PERF_COUNT_SW_BPF_OUTPUT] = { |
130 | .symbol = "bpf-output", | |
131 | .alias = "", | |
132 | }, | |
8ad8db37 IM |
133 | }; |
134 | ||
cdd6c482 IM |
135 | #define __PERF_EVENT_FIELD(config, name) \ |
136 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 137 | |
1fc570ad | 138 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 139 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 140 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 141 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 142 | |
22a9f41b ACM |
143 | #define for_each_subsystem(sys_dir, sys_dirent) \ |
144 | while ((sys_dirent = readdir(sys_dir)) != NULL) \ | |
145 | if (sys_dirent->d_type == DT_DIR && \ | |
146 | (strcmp(sys_dirent->d_name, ".")) && \ | |
147 | (strcmp(sys_dirent->d_name, ".."))) | |
f6bdafef | 148 | |
ae07b63f PZ |
149 | static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir) |
150 | { | |
151 | char evt_path[MAXPATHLEN]; | |
152 | int fd; | |
153 | ||
ebf294bf | 154 | snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path, |
ae07b63f PZ |
155 | sys_dir->d_name, evt_dir->d_name); |
156 | fd = open(evt_path, O_RDONLY); | |
157 | if (fd < 0) | |
158 | return -EINVAL; | |
159 | close(fd); | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
22a9f41b ACM |
164 | #define for_each_event(sys_dirent, evt_dir, evt_dirent) \ |
165 | while ((evt_dirent = readdir(evt_dir)) != NULL) \ | |
166 | if (evt_dirent->d_type == DT_DIR && \ | |
167 | (strcmp(evt_dirent->d_name, ".")) && \ | |
168 | (strcmp(evt_dirent->d_name, "..")) && \ | |
169 | (!tp_event_has_id(sys_dirent, evt_dirent))) | |
f6bdafef | 170 | |
270bbbe8 | 171 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 172 | |
f6bdafef | 173 | |
1ef2ed10 | 174 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 175 | { |
1ef2ed10 | 176 | struct tracepoint_path *path = NULL; |
f6bdafef | 177 | DIR *sys_dir, *evt_dir; |
22a9f41b | 178 | struct dirent *sys_dirent, *evt_dirent; |
8aa8a7c8 | 179 | char id_buf[24]; |
725b1368 | 180 | int fd; |
f6bdafef JB |
181 | u64 id; |
182 | char evt_path[MAXPATHLEN]; | |
725b1368 | 183 | char dir_path[MAXPATHLEN]; |
f6bdafef | 184 | |
ebf294bf | 185 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 186 | if (!sys_dir) |
725b1368 | 187 | return NULL; |
6b58e7f1 | 188 | |
22a9f41b | 189 | for_each_subsystem(sys_dir, sys_dirent) { |
725b1368 | 190 | |
ebf294bf | 191 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 192 | sys_dirent->d_name); |
725b1368 ED |
193 | evt_dir = opendir(dir_path); |
194 | if (!evt_dir) | |
6b58e7f1 | 195 | continue; |
725b1368 | 196 | |
22a9f41b | 197 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
725b1368 ED |
198 | |
199 | snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, | |
22a9f41b | 200 | evt_dirent->d_name); |
725b1368 | 201 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
202 | if (fd < 0) |
203 | continue; | |
204 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
205 | close(fd); | |
206 | continue; | |
207 | } | |
208 | close(fd); | |
209 | id = atoll(id_buf); | |
210 | if (id == config) { | |
211 | closedir(evt_dir); | |
212 | closedir(sys_dir); | |
59b4caeb | 213 | path = zalloc(sizeof(*path)); |
5aa365f2 TS |
214 | if (!path) |
215 | return NULL; | |
1ef2ed10 FW |
216 | path->system = malloc(MAX_EVENT_LENGTH); |
217 | if (!path->system) { | |
218 | free(path); | |
219 | return NULL; | |
220 | } | |
221 | path->name = malloc(MAX_EVENT_LENGTH); | |
222 | if (!path->name) { | |
74cf249d | 223 | zfree(&path->system); |
1ef2ed10 FW |
224 | free(path); |
225 | return NULL; | |
226 | } | |
22a9f41b | 227 | strncpy(path->system, sys_dirent->d_name, |
1ef2ed10 | 228 | MAX_EVENT_LENGTH); |
22a9f41b | 229 | strncpy(path->name, evt_dirent->d_name, |
1ef2ed10 FW |
230 | MAX_EVENT_LENGTH); |
231 | return path; | |
f6bdafef JB |
232 | } |
233 | } | |
234 | closedir(evt_dir); | |
235 | } | |
236 | ||
f6bdafef | 237 | closedir(sys_dir); |
1ef2ed10 FW |
238 | return NULL; |
239 | } | |
240 | ||
e7c93f09 NK |
241 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
242 | { | |
243 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
244 | char *str = strchr(name, ':'); | |
245 | ||
246 | if (path == NULL || str == NULL) { | |
247 | free(path); | |
248 | return NULL; | |
249 | } | |
250 | ||
251 | path->system = strndup(name, str - name); | |
252 | path->name = strdup(str+1); | |
253 | ||
254 | if (path->system == NULL || path->name == NULL) { | |
74cf249d ACM |
255 | zfree(&path->system); |
256 | zfree(&path->name); | |
506fde11 | 257 | zfree(&path); |
e7c93f09 NK |
258 | } |
259 | ||
260 | return path; | |
261 | } | |
262 | ||
1424dc96 DA |
263 | const char *event_type(int type) |
264 | { | |
265 | switch (type) { | |
266 | case PERF_TYPE_HARDWARE: | |
267 | return "hardware"; | |
268 | ||
269 | case PERF_TYPE_SOFTWARE: | |
270 | return "software"; | |
271 | ||
272 | case PERF_TYPE_TRACEPOINT: | |
273 | return "tracepoint"; | |
274 | ||
275 | case PERF_TYPE_HW_CACHE: | |
276 | return "hardware-cache"; | |
277 | ||
278 | default: | |
279 | break; | |
280 | } | |
281 | ||
282 | return "unknown"; | |
283 | } | |
284 | ||
e814fddd WN |
285 | static int parse_events__is_name_term(struct parse_events_term *term) |
286 | { | |
287 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
288 | } | |
7ae92e74 | 289 | |
e814fddd WN |
290 | static char *get_config_name(struct list_head *head_terms) |
291 | { | |
292 | struct parse_events_term *term; | |
293 | ||
294 | if (!head_terms) | |
295 | return NULL; | |
296 | ||
297 | list_for_each_entry(term, head_terms, list) | |
298 | if (parse_events__is_name_term(term)) | |
299 | return term->val.str; | |
300 | ||
301 | return NULL; | |
302 | } | |
7ae92e74 | 303 | |
410136f5 SE |
304 | static struct perf_evsel * |
305 | __add_event(struct list_head *list, int *idx, | |
306 | struct perf_event_attr *attr, | |
930a2e29 JO |
307 | char *name, struct cpu_map *cpus, |
308 | struct list_head *config_terms) | |
89812fc8 JO |
309 | { |
310 | struct perf_evsel *evsel; | |
311 | ||
312 | event_attr_init(attr); | |
313 | ||
75fc5ae5 | 314 | evsel = perf_evsel__new_idx(attr, *idx); |
c5cd8ac0 | 315 | if (!evsel) |
410136f5 | 316 | return NULL; |
89812fc8 | 317 | |
75fc5ae5 | 318 | (*idx)++; |
fce4d296 AH |
319 | evsel->cpus = cpu_map__get(cpus); |
320 | evsel->own_cpus = cpu_map__get(cpus); | |
f30a79b0 | 321 | |
9db1763c ACM |
322 | if (name) |
323 | evsel->name = strdup(name); | |
930a2e29 JO |
324 | |
325 | if (config_terms) | |
326 | list_splice(config_terms, &evsel->config_terms); | |
327 | ||
b847cbdc | 328 | list_add_tail(&evsel->node, list); |
410136f5 | 329 | return evsel; |
89812fc8 JO |
330 | } |
331 | ||
c5cd8ac0 | 332 | static int add_event(struct list_head *list, int *idx, |
930a2e29 JO |
333 | struct perf_event_attr *attr, char *name, |
334 | struct list_head *config_terms) | |
7ae92e74 | 335 | { |
930a2e29 | 336 | return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM; |
7ae92e74 YZ |
337 | } |
338 | ||
0b668bc9 | 339 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
340 | { |
341 | int i, j; | |
61c45981 | 342 | int n, longest = -1; |
8326f44d IM |
343 | |
344 | for (i = 0; i < size; i++) { | |
0b668bc9 | 345 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 346 | n = strlen(names[i][j]); |
89812fc8 | 347 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
348 | longest = n; |
349 | } | |
89812fc8 | 350 | if (longest > 0) |
61c45981 | 351 | return i; |
8326f44d IM |
352 | } |
353 | ||
8953645f | 354 | return -1; |
8326f44d IM |
355 | } |
356 | ||
43d0b978 WN |
357 | typedef int config_term_func_t(struct perf_event_attr *attr, |
358 | struct parse_events_term *term, | |
359 | struct parse_events_error *err); | |
360 | static int config_term_common(struct perf_event_attr *attr, | |
361 | struct parse_events_term *term, | |
362 | struct parse_events_error *err); | |
363 | static int config_attr(struct perf_event_attr *attr, | |
364 | struct list_head *head, | |
365 | struct parse_events_error *err, | |
366 | config_term_func_t config_term); | |
367 | ||
c5cd8ac0 | 368 | int parse_events_add_cache(struct list_head *list, int *idx, |
43d0b978 | 369 | char *type, char *op_result1, char *op_result2, |
2c97b0d4 | 370 | struct parse_events_error *err, |
43d0b978 | 371 | struct list_head *head_config) |
8326f44d | 372 | { |
89812fc8 | 373 | struct perf_event_attr attr; |
43d0b978 WN |
374 | LIST_HEAD(config_terms); |
375 | char name[MAX_NAME_LEN], *config_name; | |
61c45981 | 376 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
377 | char *op_result[2] = { op_result1, op_result2 }; |
378 | int i, n; | |
8326f44d | 379 | |
8326f44d IM |
380 | /* |
381 | * No fallback - if we cannot get a clear cache type | |
382 | * then bail out: | |
383 | */ | |
0b668bc9 | 384 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 385 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 386 | if (cache_type == -1) |
89812fc8 JO |
387 | return -EINVAL; |
388 | ||
43d0b978 | 389 | config_name = get_config_name(head_config); |
89812fc8 | 390 | n = snprintf(name, MAX_NAME_LEN, "%s", type); |
61c45981 | 391 | |
89812fc8 JO |
392 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
393 | char *str = op_result[i]; | |
394 | ||
275ef387 | 395 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
396 | |
397 | if (cache_op == -1) { | |
0b668bc9 | 398 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 399 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 400 | if (cache_op >= 0) { |
0b668bc9 | 401 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 402 | return -EINVAL; |
61c45981 PM |
403 | continue; |
404 | } | |
405 | } | |
406 | ||
407 | if (cache_result == -1) { | |
0b668bc9 ACM |
408 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
409 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
410 | if (cache_result >= 0) |
411 | continue; | |
412 | } | |
61c45981 | 413 | } |
8326f44d | 414 | |
8326f44d IM |
415 | /* |
416 | * Fall back to reads: | |
417 | */ | |
8953645f IM |
418 | if (cache_op == -1) |
419 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 420 | |
8326f44d IM |
421 | /* |
422 | * Fall back to accesses: | |
423 | */ | |
424 | if (cache_result == -1) | |
425 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
426 | ||
89812fc8 JO |
427 | memset(&attr, 0, sizeof(attr)); |
428 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
429 | attr.type = PERF_TYPE_HW_CACHE; | |
43d0b978 WN |
430 | |
431 | if (head_config) { | |
2c97b0d4 | 432 | if (config_attr(&attr, head_config, err, |
43d0b978 WN |
433 | config_term_common)) |
434 | return -EINVAL; | |
435 | ||
436 | if (get_config_terms(head_config, &config_terms)) | |
437 | return -ENOMEM; | |
438 | } | |
439 | return add_event(list, idx, &attr, config_name ? : name, &config_terms); | |
bcd3279f FW |
440 | } |
441 | ||
272ed29a | 442 | static void tracepoint_error(struct parse_events_error *e, int err, |
8c619d6a | 443 | const char *sys, const char *name) |
19658171 JO |
444 | { |
445 | char help[BUFSIZ]; | |
446 | ||
ec183d22 AH |
447 | if (!e) |
448 | return; | |
449 | ||
19658171 JO |
450 | /* |
451 | * We get error directly from syscall errno ( > 0), | |
452 | * or from encoded pointer's error ( < 0). | |
453 | */ | |
454 | err = abs(err); | |
455 | ||
456 | switch (err) { | |
457 | case EACCES: | |
272ed29a | 458 | e->str = strdup("can't access trace events"); |
19658171 JO |
459 | break; |
460 | case ENOENT: | |
272ed29a | 461 | e->str = strdup("unknown tracepoint"); |
19658171 JO |
462 | break; |
463 | default: | |
272ed29a | 464 | e->str = strdup("failed to add tracepoint"); |
19658171 JO |
465 | break; |
466 | } | |
467 | ||
468 | tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); | |
272ed29a | 469 | e->help = strdup(help); |
19658171 JO |
470 | } |
471 | ||
c5cd8ac0 | 472 | static int add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 473 | const char *sys_name, const char *evt_name, |
272ed29a | 474 | struct parse_events_error *err, |
e637d177 | 475 | struct list_head *head_config) |
bcd3279f | 476 | { |
82fe1c29 | 477 | struct perf_evsel *evsel; |
bcd3279f | 478 | |
ef503831 | 479 | evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); |
19658171 | 480 | if (IS_ERR(evsel)) { |
272ed29a | 481 | tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name); |
8dd2a131 | 482 | return PTR_ERR(evsel); |
19658171 | 483 | } |
bcd3279f | 484 | |
e637d177 HK |
485 | if (head_config) { |
486 | LIST_HEAD(config_terms); | |
487 | ||
488 | if (get_config_terms(head_config, &config_terms)) | |
489 | return -ENOMEM; | |
490 | list_splice(&config_terms, &evsel->config_terms); | |
491 | } | |
492 | ||
82fe1c29 | 493 | list_add_tail(&evsel->node, list); |
82fe1c29 | 494 | return 0; |
8326f44d IM |
495 | } |
496 | ||
c5cd8ac0 | 497 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
8c619d6a | 498 | const char *sys_name, const char *evt_name, |
272ed29a | 499 | struct parse_events_error *err, |
e637d177 | 500 | struct list_head *head_config) |
bcd3279f FW |
501 | { |
502 | char evt_path[MAXPATHLEN]; | |
503 | struct dirent *evt_ent; | |
504 | DIR *evt_dir; | |
27bf90bf | 505 | int ret = 0, found = 0; |
bcd3279f | 506 | |
ebf294bf | 507 | snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name); |
bcd3279f | 508 | evt_dir = opendir(evt_path); |
bcd3279f | 509 | if (!evt_dir) { |
272ed29a | 510 | tracepoint_error(err, errno, sys_name, evt_name); |
89812fc8 | 511 | return -1; |
bcd3279f FW |
512 | } |
513 | ||
89812fc8 | 514 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
515 | if (!strcmp(evt_ent->d_name, ".") |
516 | || !strcmp(evt_ent->d_name, "..") | |
517 | || !strcmp(evt_ent->d_name, "enable") | |
518 | || !strcmp(evt_ent->d_name, "filter")) | |
519 | continue; | |
520 | ||
89812fc8 | 521 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
522 | continue; |
523 | ||
27bf90bf JO |
524 | found++; |
525 | ||
e637d177 | 526 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, |
272ed29a | 527 | err, head_config); |
bcd3279f FW |
528 | } |
529 | ||
27bf90bf JO |
530 | if (!found) { |
531 | tracepoint_error(err, ENOENT, sys_name, evt_name); | |
532 | ret = -1; | |
533 | } | |
534 | ||
0bd3f084 | 535 | closedir(evt_dir); |
89812fc8 | 536 | return ret; |
bcd3279f FW |
537 | } |
538 | ||
c5cd8ac0 | 539 | static int add_tracepoint_event(struct list_head *list, int *idx, |
8c619d6a | 540 | const char *sys_name, const char *evt_name, |
272ed29a | 541 | struct parse_events_error *err, |
e637d177 | 542 | struct list_head *head_config) |
f35488f9 JO |
543 | { |
544 | return strpbrk(evt_name, "*?") ? | |
e637d177 | 545 | add_tracepoint_multi_event(list, idx, sys_name, evt_name, |
272ed29a | 546 | err, head_config) : |
e637d177 | 547 | add_tracepoint(list, idx, sys_name, evt_name, |
272ed29a | 548 | err, head_config); |
f35488f9 JO |
549 | } |
550 | ||
c5cd8ac0 | 551 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
8c619d6a | 552 | const char *sys_name, const char *evt_name, |
272ed29a | 553 | struct parse_events_error *err, |
e637d177 | 554 | struct list_head *head_config) |
f35488f9 JO |
555 | { |
556 | struct dirent *events_ent; | |
557 | DIR *events_dir; | |
558 | int ret = 0; | |
559 | ||
560 | events_dir = opendir(tracing_events_path); | |
561 | if (!events_dir) { | |
272ed29a | 562 | tracepoint_error(err, errno, sys_name, evt_name); |
f35488f9 JO |
563 | return -1; |
564 | } | |
565 | ||
566 | while (!ret && (events_ent = readdir(events_dir))) { | |
567 | if (!strcmp(events_ent->d_name, ".") | |
568 | || !strcmp(events_ent->d_name, "..") | |
569 | || !strcmp(events_ent->d_name, "enable") | |
570 | || !strcmp(events_ent->d_name, "header_event") | |
571 | || !strcmp(events_ent->d_name, "header_page")) | |
572 | continue; | |
573 | ||
574 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
575 | continue; | |
576 | ||
577 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
272ed29a | 578 | evt_name, err, head_config); |
f35488f9 JO |
579 | } |
580 | ||
581 | closedir(events_dir); | |
582 | return ret; | |
583 | } | |
584 | ||
4edf30e3 WN |
585 | struct __add_bpf_event_param { |
586 | struct parse_events_evlist *data; | |
587 | struct list_head *list; | |
95088a59 | 588 | struct list_head *head_config; |
4edf30e3 WN |
589 | }; |
590 | ||
cd102d70 | 591 | static int add_bpf_event(const char *group, const char *event, int fd, |
4edf30e3 WN |
592 | void *_param) |
593 | { | |
594 | LIST_HEAD(new_evsels); | |
595 | struct __add_bpf_event_param *param = _param; | |
596 | struct parse_events_evlist *evlist = param->data; | |
597 | struct list_head *list = param->list; | |
1f45b1d4 | 598 | struct perf_evsel *pos; |
4edf30e3 WN |
599 | int err; |
600 | ||
601 | pr_debug("add bpf event %s:%s and attach bpf program %d\n", | |
cd102d70 | 602 | group, event, fd); |
4edf30e3 | 603 | |
cd102d70 WN |
604 | err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, group, |
605 | event, evlist->error, | |
95088a59 | 606 | param->head_config); |
4edf30e3 WN |
607 | if (err) { |
608 | struct perf_evsel *evsel, *tmp; | |
609 | ||
610 | pr_debug("Failed to add BPF event %s:%s\n", | |
cd102d70 | 611 | group, event); |
4edf30e3 WN |
612 | list_for_each_entry_safe(evsel, tmp, &new_evsels, node) { |
613 | list_del(&evsel->node); | |
614 | perf_evsel__delete(evsel); | |
615 | } | |
616 | return err; | |
617 | } | |
cd102d70 | 618 | pr_debug("adding %s:%s\n", group, event); |
4edf30e3 | 619 | |
1f45b1d4 WN |
620 | list_for_each_entry(pos, &new_evsels, node) { |
621 | pr_debug("adding %s:%s to %p\n", | |
cd102d70 | 622 | group, event, pos); |
1f45b1d4 WN |
623 | pos->bpf_fd = fd; |
624 | } | |
4edf30e3 WN |
625 | list_splice(&new_evsels, list); |
626 | return 0; | |
627 | } | |
628 | ||
84c86ca1 WN |
629 | int parse_events_load_bpf_obj(struct parse_events_evlist *data, |
630 | struct list_head *list, | |
95088a59 WN |
631 | struct bpf_object *obj, |
632 | struct list_head *head_config) | |
84c86ca1 WN |
633 | { |
634 | int err; | |
635 | char errbuf[BUFSIZ]; | |
95088a59 | 636 | struct __add_bpf_event_param param = {data, list, head_config}; |
aa3abf30 | 637 | static bool registered_unprobe_atexit = false; |
84c86ca1 WN |
638 | |
639 | if (IS_ERR(obj) || !obj) { | |
640 | snprintf(errbuf, sizeof(errbuf), | |
641 | "Internal error: load bpf obj with NULL"); | |
642 | err = -EINVAL; | |
643 | goto errout; | |
644 | } | |
645 | ||
aa3abf30 WN |
646 | /* |
647 | * Register atexit handler before calling bpf__probe() so | |
648 | * bpf__probe() don't need to unprobe probe points its already | |
649 | * created when failure. | |
650 | */ | |
651 | if (!registered_unprobe_atexit) { | |
652 | atexit(bpf__clear); | |
653 | registered_unprobe_atexit = true; | |
654 | } | |
655 | ||
656 | err = bpf__probe(obj); | |
657 | if (err) { | |
658 | bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf)); | |
659 | goto errout; | |
660 | } | |
661 | ||
1e5e3ee8 WN |
662 | err = bpf__load(obj); |
663 | if (err) { | |
664 | bpf__strerror_load(obj, err, errbuf, sizeof(errbuf)); | |
665 | goto errout; | |
666 | } | |
667 | ||
cd102d70 | 668 | err = bpf__foreach_event(obj, add_bpf_event, ¶m); |
4edf30e3 WN |
669 | if (err) { |
670 | snprintf(errbuf, sizeof(errbuf), | |
671 | "Attach events in BPF object failed"); | |
672 | goto errout; | |
673 | } | |
674 | ||
675 | return 0; | |
84c86ca1 WN |
676 | errout: |
677 | data->error->help = strdup("(add -v to see detail)"); | |
678 | data->error->str = strdup(errbuf); | |
679 | return err; | |
680 | } | |
681 | ||
a34f3be7 WN |
682 | static int |
683 | parse_events_config_bpf(struct parse_events_evlist *data, | |
684 | struct bpf_object *obj, | |
685 | struct list_head *head_config) | |
686 | { | |
687 | struct parse_events_term *term; | |
688 | int error_pos; | |
689 | ||
690 | if (!head_config || list_empty(head_config)) | |
691 | return 0; | |
692 | ||
693 | list_for_each_entry(term, head_config, list) { | |
694 | char errbuf[BUFSIZ]; | |
695 | int err; | |
696 | ||
697 | if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) { | |
698 | snprintf(errbuf, sizeof(errbuf), | |
699 | "Invalid config term for BPF object"); | |
700 | errbuf[BUFSIZ - 1] = '\0'; | |
701 | ||
702 | data->error->idx = term->err_term; | |
703 | data->error->str = strdup(errbuf); | |
704 | return -EINVAL; | |
705 | } | |
706 | ||
7630b3e2 | 707 | err = bpf__config_obj(obj, term, data->evlist, &error_pos); |
a34f3be7 | 708 | if (err) { |
7630b3e2 | 709 | bpf__strerror_config_obj(obj, term, data->evlist, |
a34f3be7 WN |
710 | &error_pos, err, errbuf, |
711 | sizeof(errbuf)); | |
712 | data->error->help = strdup( | |
7630b3e2 | 713 | "Hint:\tValid config terms:\n" |
e571e029 WN |
714 | " \tmap:[<arraymap>].value<indices>=[value]\n" |
715 | " \tmap:[<eventmap>].event<indices>=[event]\n" | |
7630b3e2 | 716 | "\n" |
e571e029 | 717 | " \twhere <indices> is something like [0,3...5] or [all]\n" |
a34f3be7 WN |
718 | " \t(add -v to see detail)"); |
719 | data->error->str = strdup(errbuf); | |
720 | if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE) | |
721 | data->error->idx = term->err_val; | |
722 | else | |
723 | data->error->idx = term->err_term + error_pos; | |
724 | return err; | |
725 | } | |
726 | } | |
727 | return 0; | |
728 | } | |
729 | ||
95088a59 WN |
730 | /* |
731 | * Split config terms: | |
732 | * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ... | |
733 | * 'call-graph=fp' is 'evt config', should be applied to each | |
734 | * events in bpf.c. | |
735 | * 'map:array.value[0]=1' is 'obj config', should be processed | |
736 | * with parse_events_config_bpf. | |
737 | * | |
738 | * Move object config terms from the first list to obj_head_config. | |
739 | */ | |
740 | static void | |
741 | split_bpf_config_terms(struct list_head *evt_head_config, | |
742 | struct list_head *obj_head_config) | |
743 | { | |
744 | struct parse_events_term *term, *temp; | |
745 | ||
746 | /* | |
747 | * Currectly, all possible user config term | |
748 | * belong to bpf object. parse_events__is_hardcoded_term() | |
749 | * happends to be a good flag. | |
750 | * | |
751 | * See parse_events_config_bpf() and | |
752 | * config_term_tracepoint(). | |
753 | */ | |
754 | list_for_each_entry_safe(term, temp, evt_head_config, list) | |
755 | if (!parse_events__is_hardcoded_term(term)) | |
756 | list_move_tail(&term->list, obj_head_config); | |
757 | } | |
758 | ||
84c86ca1 WN |
759 | int parse_events_load_bpf(struct parse_events_evlist *data, |
760 | struct list_head *list, | |
d509db04 | 761 | char *bpf_file_name, |
a34f3be7 WN |
762 | bool source, |
763 | struct list_head *head_config) | |
84c86ca1 | 764 | { |
a34f3be7 | 765 | int err; |
95088a59 WN |
766 | struct bpf_object *obj; |
767 | LIST_HEAD(obj_head_config); | |
768 | ||
769 | if (head_config) | |
770 | split_bpf_config_terms(head_config, &obj_head_config); | |
84c86ca1 | 771 | |
d509db04 | 772 | obj = bpf__prepare_load(bpf_file_name, source); |
6371ca3b | 773 | if (IS_ERR(obj)) { |
84c86ca1 | 774 | char errbuf[BUFSIZ]; |
84c86ca1 | 775 | |
6371ca3b | 776 | err = PTR_ERR(obj); |
84c86ca1 WN |
777 | |
778 | if (err == -ENOTSUP) | |
779 | snprintf(errbuf, sizeof(errbuf), | |
780 | "BPF support is not compiled"); | |
781 | else | |
d3e0ce39 WN |
782 | bpf__strerror_prepare_load(bpf_file_name, |
783 | source, | |
784 | -err, errbuf, | |
785 | sizeof(errbuf)); | |
84c86ca1 WN |
786 | |
787 | data->error->help = strdup("(add -v to see detail)"); | |
788 | data->error->str = strdup(errbuf); | |
789 | return err; | |
790 | } | |
791 | ||
95088a59 | 792 | err = parse_events_load_bpf_obj(data, list, obj, head_config); |
a34f3be7 WN |
793 | if (err) |
794 | return err; | |
95088a59 WN |
795 | err = parse_events_config_bpf(data, obj, &obj_head_config); |
796 | ||
797 | /* | |
798 | * Caller doesn't know anything about obj_head_config, | |
799 | * so combine them together again before returnning. | |
800 | */ | |
801 | if (head_config) | |
802 | list_splice_tail(&obj_head_config, head_config); | |
803 | return err; | |
84c86ca1 WN |
804 | } |
805 | ||
89812fc8 JO |
806 | static int |
807 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
808 | { |
809 | int i; | |
810 | ||
811 | for (i = 0; i < 3; i++) { | |
89812fc8 | 812 | if (!type || !type[i]) |
1b290d67 FW |
813 | break; |
814 | ||
7582732f JO |
815 | #define CHECK_SET_TYPE(bit) \ |
816 | do { \ | |
817 | if (attr->bp_type & bit) \ | |
818 | return -EINVAL; \ | |
819 | else \ | |
820 | attr->bp_type |= bit; \ | |
821 | } while (0) | |
822 | ||
1b290d67 FW |
823 | switch (type[i]) { |
824 | case 'r': | |
7582732f | 825 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
826 | break; |
827 | case 'w': | |
7582732f | 828 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
829 | break; |
830 | case 'x': | |
7582732f | 831 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
832 | break; |
833 | default: | |
89812fc8 | 834 | return -EINVAL; |
1b290d67 FW |
835 | } |
836 | } | |
89812fc8 | 837 | |
7582732f JO |
838 | #undef CHECK_SET_TYPE |
839 | ||
1b290d67 FW |
840 | if (!attr->bp_type) /* Default */ |
841 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
842 | ||
89812fc8 | 843 | return 0; |
1b290d67 FW |
844 | } |
845 | ||
c5cd8ac0 | 846 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
3741eb9f | 847 | void *ptr, char *type, u64 len) |
1b290d67 | 848 | { |
89812fc8 | 849 | struct perf_event_attr attr; |
1b290d67 | 850 | |
89812fc8 | 851 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 852 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 853 | |
89812fc8 JO |
854 | if (parse_breakpoint_type(type, &attr)) |
855 | return -EINVAL; | |
1b290d67 | 856 | |
3741eb9f JS |
857 | /* Provide some defaults if len is not specified */ |
858 | if (!len) { | |
859 | if (attr.bp_type == HW_BREAKPOINT_X) | |
860 | len = sizeof(long); | |
861 | else | |
862 | len = HW_BREAKPOINT_LEN_4; | |
863 | } | |
864 | ||
865 | attr.bp_len = len; | |
61c45981 | 866 | |
89812fc8 | 867 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 868 | attr.sample_period = 1; |
b908debd | 869 | |
930a2e29 | 870 | return add_event(list, idx, &attr, NULL, NULL); |
74d5b588 JSR |
871 | } |
872 | ||
3b0e371c JO |
873 | static int check_type_val(struct parse_events_term *term, |
874 | struct parse_events_error *err, | |
875 | int type) | |
876 | { | |
877 | if (type == term->type_val) | |
878 | return 0; | |
879 | ||
880 | if (err) { | |
881 | err->idx = term->err_val; | |
882 | if (type == PARSE_EVENTS__TERM_TYPE_NUM) | |
883 | err->str = strdup("expected numeric value"); | |
884 | else | |
885 | err->str = strdup("expected string value"); | |
886 | } | |
887 | return -EINVAL; | |
888 | } | |
889 | ||
17cb5f84 WN |
890 | /* |
891 | * Update according to parse-events.l | |
892 | */ | |
893 | static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { | |
894 | [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>", | |
895 | [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", | |
896 | [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", | |
897 | [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", | |
898 | [PARSE_EVENTS__TERM_TYPE_NAME] = "name", | |
899 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", | |
900 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", | |
901 | [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type", | |
902 | [PARSE_EVENTS__TERM_TYPE_TIME] = "time", | |
903 | [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph", | |
904 | [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size", | |
905 | [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit", | |
906 | [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit", | |
792d48b4 | 907 | [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack", |
626a6b78 WN |
908 | [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite", |
909 | [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite", | |
dd60fba7 | 910 | [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", |
17cb5f84 WN |
911 | }; |
912 | ||
1669e509 WN |
913 | static bool config_term_shrinked; |
914 | ||
915 | static bool | |
916 | config_term_avail(int term_type, struct parse_events_error *err) | |
917 | { | |
918 | if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) { | |
919 | err->str = strdup("Invalid term_type"); | |
920 | return false; | |
921 | } | |
922 | if (!config_term_shrinked) | |
923 | return true; | |
924 | ||
925 | switch (term_type) { | |
926 | case PARSE_EVENTS__TERM_TYPE_CONFIG: | |
927 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
928 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
929 | case PARSE_EVENTS__TERM_TYPE_NAME: | |
06835545 | 930 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1669e509 WN |
931 | return true; |
932 | default: | |
933 | if (!err) | |
934 | return false; | |
935 | ||
936 | /* term_type is validated so indexing is safe */ | |
937 | if (asprintf(&err->str, "'%s' is not usable in 'perf stat'", | |
938 | config_term_names[term_type]) < 0) | |
939 | err->str = NULL; | |
940 | return false; | |
941 | } | |
942 | } | |
943 | ||
944 | void parse_events__shrink_config_terms(void) | |
945 | { | |
946 | config_term_shrinked = true; | |
947 | } | |
948 | ||
0b8891a8 HK |
949 | static int config_term_common(struct perf_event_attr *attr, |
950 | struct parse_events_term *term, | |
951 | struct parse_events_error *err) | |
8f707d84 | 952 | { |
3b0e371c JO |
953 | #define CHECK_TYPE_VAL(type) \ |
954 | do { \ | |
955 | if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \ | |
956 | return -EINVAL; \ | |
16fa7e82 JO |
957 | } while (0) |
958 | ||
959 | switch (term->type_term) { | |
8f707d84 | 960 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 961 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
962 | attr->config = term->val.num; |
963 | break; | |
964 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 965 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
966 | attr->config1 = term->val.num; |
967 | break; | |
968 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 969 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
970 | attr->config2 = term->val.num; |
971 | break; | |
972 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 973 | CHECK_TYPE_VAL(NUM); |
8f707d84 | 974 | break; |
09af2a55 NK |
975 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
976 | CHECK_TYPE_VAL(NUM); | |
977 | break; | |
8f707d84 | 978 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
ac12f676 AK |
979 | CHECK_TYPE_VAL(STR); |
980 | if (strcmp(term->val.str, "no") && | |
981 | parse_branch_str(term->val.str, &attr->branch_sample_type)) { | |
982 | err->str = strdup("invalid branch sample type"); | |
983 | err->idx = term->err_val; | |
984 | return -EINVAL; | |
985 | } | |
8f707d84 | 986 | break; |
32067712 KL |
987 | case PARSE_EVENTS__TERM_TYPE_TIME: |
988 | CHECK_TYPE_VAL(NUM); | |
989 | if (term->val.num > 1) { | |
990 | err->str = strdup("expected 0 or 1"); | |
991 | err->idx = term->err_val; | |
992 | return -EINVAL; | |
993 | } | |
994 | break; | |
d457c963 KL |
995 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
996 | CHECK_TYPE_VAL(STR); | |
997 | break; | |
998 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
999 | CHECK_TYPE_VAL(NUM); | |
1000 | break; | |
374ce938 WN |
1001 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1002 | CHECK_TYPE_VAL(NUM); | |
1003 | break; | |
1004 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1005 | CHECK_TYPE_VAL(NUM); | |
1006 | break; | |
626a6b78 WN |
1007 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1008 | CHECK_TYPE_VAL(NUM); | |
1009 | break; | |
1010 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1011 | CHECK_TYPE_VAL(NUM); | |
1012 | break; | |
6b5fc39b JO |
1013 | case PARSE_EVENTS__TERM_TYPE_NAME: |
1014 | CHECK_TYPE_VAL(STR); | |
1015 | break; | |
792d48b4 ACM |
1016 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1017 | CHECK_TYPE_VAL(NUM); | |
1018 | break; | |
8f707d84 | 1019 | default: |
ffeb883e HK |
1020 | err->str = strdup("unknown term"); |
1021 | err->idx = term->err_term; | |
1022 | err->help = parse_events_formats_error_string(NULL); | |
8f707d84 JO |
1023 | return -EINVAL; |
1024 | } | |
16fa7e82 | 1025 | |
1669e509 WN |
1026 | /* |
1027 | * Check term availbility after basic checking so | |
1028 | * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered. | |
1029 | * | |
1030 | * If check availbility at the entry of this function, | |
1031 | * user will see "'<sysfs term>' is not usable in 'perf stat'" | |
1032 | * if an invalid config term is provided for legacy events | |
1033 | * (for example, instructions/badterm/...), which is confusing. | |
1034 | */ | |
1035 | if (!config_term_avail(term->type_term, err)) | |
1036 | return -EINVAL; | |
8f707d84 | 1037 | return 0; |
16fa7e82 | 1038 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
1039 | } |
1040 | ||
0b8891a8 HK |
1041 | static int config_term_pmu(struct perf_event_attr *attr, |
1042 | struct parse_events_term *term, | |
1043 | struct parse_events_error *err) | |
1044 | { | |
dd60fba7 MP |
1045 | if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER || |
1046 | term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG) | |
0b8891a8 HK |
1047 | /* |
1048 | * Always succeed for sysfs terms, as we dont know | |
1049 | * at this point what type they need to have. | |
1050 | */ | |
1051 | return 0; | |
1052 | else | |
1053 | return config_term_common(attr, term, err); | |
1054 | } | |
1055 | ||
e637d177 HK |
1056 | static int config_term_tracepoint(struct perf_event_attr *attr, |
1057 | struct parse_events_term *term, | |
1058 | struct parse_events_error *err) | |
1059 | { | |
1060 | switch (term->type_term) { | |
1061 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: | |
1062 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
374ce938 WN |
1063 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1064 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
792d48b4 | 1065 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
626a6b78 WN |
1066 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1067 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
e637d177 HK |
1068 | return config_term_common(attr, term, err); |
1069 | default: | |
1070 | if (err) { | |
1071 | err->idx = term->err_term; | |
1072 | err->str = strdup("unknown term"); | |
1073 | err->help = strdup("valid terms: call-graph,stack-size\n"); | |
1074 | } | |
1075 | return -EINVAL; | |
1076 | } | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
8f707d84 | 1081 | static int config_attr(struct perf_event_attr *attr, |
3b0e371c | 1082 | struct list_head *head, |
0b8891a8 HK |
1083 | struct parse_events_error *err, |
1084 | config_term_func_t config_term) | |
8f707d84 | 1085 | { |
6cee6cd3 | 1086 | struct parse_events_term *term; |
8f707d84 JO |
1087 | |
1088 | list_for_each_entry(term, head, list) | |
3b0e371c | 1089 | if (config_term(attr, term, err)) |
8f707d84 JO |
1090 | return -EINVAL; |
1091 | ||
1092 | return 0; | |
1093 | } | |
1094 | ||
930a2e29 JO |
1095 | static int get_config_terms(struct list_head *head_config, |
1096 | struct list_head *head_terms __maybe_unused) | |
1097 | { | |
1098 | #define ADD_CONFIG_TERM(__type, __name, __val) \ | |
1099 | do { \ | |
1100 | struct perf_evsel_config_term *__t; \ | |
1101 | \ | |
1102 | __t = zalloc(sizeof(*__t)); \ | |
1103 | if (!__t) \ | |
1104 | return -ENOMEM; \ | |
1105 | \ | |
1106 | INIT_LIST_HEAD(&__t->list); \ | |
1107 | __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \ | |
1108 | __t->val.__name = __val; \ | |
1109 | list_add_tail(&__t->list, head_terms); \ | |
1110 | } while (0) | |
1111 | ||
1112 | struct parse_events_term *term; | |
1113 | ||
1114 | list_for_each_entry(term, head_config, list) { | |
1115 | switch (term->type_term) { | |
ee4c7588 JO |
1116 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1117 | ADD_CONFIG_TERM(PERIOD, period, term->val.num); | |
32067712 | 1118 | break; |
09af2a55 NK |
1119 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
1120 | ADD_CONFIG_TERM(FREQ, freq, term->val.num); | |
1121 | break; | |
32067712 KL |
1122 | case PARSE_EVENTS__TERM_TYPE_TIME: |
1123 | ADD_CONFIG_TERM(TIME, time, term->val.num); | |
1124 | break; | |
d457c963 KL |
1125 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1126 | ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str); | |
1127 | break; | |
ac12f676 AK |
1128 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
1129 | ADD_CONFIG_TERM(BRANCH, branch, term->val.str); | |
1130 | break; | |
d457c963 KL |
1131 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: |
1132 | ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num); | |
1133 | break; | |
374ce938 WN |
1134 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1135 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0); | |
1136 | break; | |
1137 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1138 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1); | |
1139 | break; | |
792d48b4 ACM |
1140 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1141 | ADD_CONFIG_TERM(MAX_STACK, max_stack, term->val.num); | |
1142 | break; | |
626a6b78 WN |
1143 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1144 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 1 : 0); | |
1145 | break; | |
1146 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1147 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 0 : 1); | |
1148 | break; | |
dd60fba7 MP |
1149 | case PARSE_EVENTS__TERM_TYPE_DRV_CFG: |
1150 | ADD_CONFIG_TERM(DRV_CFG, drv_cfg, term->val.str); | |
1151 | break; | |
930a2e29 JO |
1152 | default: |
1153 | break; | |
1154 | } | |
1155 | } | |
1156 | #undef ADD_EVSEL_CONFIG | |
1157 | return 0; | |
1158 | } | |
1159 | ||
e637d177 | 1160 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 1161 | const char *sys, const char *event, |
272ed29a | 1162 | struct parse_events_error *err, |
e637d177 HK |
1163 | struct list_head *head_config) |
1164 | { | |
1165 | if (head_config) { | |
1166 | struct perf_event_attr attr; | |
1167 | ||
272ed29a | 1168 | if (config_attr(&attr, head_config, err, |
e637d177 HK |
1169 | config_term_tracepoint)) |
1170 | return -EINVAL; | |
1171 | } | |
1172 | ||
1173 | if (strpbrk(sys, "*?")) | |
1174 | return add_tracepoint_multi_sys(list, idx, sys, event, | |
272ed29a | 1175 | err, head_config); |
e637d177 HK |
1176 | else |
1177 | return add_tracepoint_event(list, idx, sys, event, | |
272ed29a | 1178 | err, head_config); |
e637d177 HK |
1179 | } |
1180 | ||
87d650be JO |
1181 | int parse_events_add_numeric(struct parse_events_evlist *data, |
1182 | struct list_head *list, | |
b527bab5 | 1183 | u32 type, u64 config, |
8f707d84 | 1184 | struct list_head *head_config) |
8ad8db37 | 1185 | { |
89812fc8 | 1186 | struct perf_event_attr attr; |
930a2e29 | 1187 | LIST_HEAD(config_terms); |
61c45981 | 1188 | |
89812fc8 JO |
1189 | memset(&attr, 0, sizeof(attr)); |
1190 | attr.type = type; | |
1191 | attr.config = config; | |
8f707d84 | 1192 | |
930a2e29 | 1193 | if (head_config) { |
0b8891a8 HK |
1194 | if (config_attr(&attr, head_config, data->error, |
1195 | config_term_common)) | |
930a2e29 JO |
1196 | return -EINVAL; |
1197 | ||
1198 | if (get_config_terms(head_config, &config_terms)) | |
1199 | return -ENOMEM; | |
1200 | } | |
8f707d84 | 1201 | |
10bf358a WN |
1202 | return add_event(list, &data->idx, &attr, |
1203 | get_config_name(head_config), &config_terms); | |
61c45981 | 1204 | } |
8ad8db37 | 1205 | |
36adec85 JO |
1206 | int parse_events_add_pmu(struct parse_events_evlist *data, |
1207 | struct list_head *list, char *name, | |
1208 | struct list_head *head_config) | |
5f537a26 JO |
1209 | { |
1210 | struct perf_event_attr attr; | |
46441bdc | 1211 | struct perf_pmu_info info; |
5f537a26 | 1212 | struct perf_pmu *pmu; |
410136f5 | 1213 | struct perf_evsel *evsel; |
930a2e29 | 1214 | LIST_HEAD(config_terms); |
5f537a26 JO |
1215 | |
1216 | pmu = perf_pmu__find(name); | |
1217 | if (!pmu) | |
1218 | return -EINVAL; | |
1219 | ||
dc0a6202 AH |
1220 | if (pmu->default_config) { |
1221 | memcpy(&attr, pmu->default_config, | |
1222 | sizeof(struct perf_event_attr)); | |
1223 | } else { | |
1224 | memset(&attr, 0, sizeof(attr)); | |
1225 | } | |
5f537a26 | 1226 | |
ad962273 AH |
1227 | if (!head_config) { |
1228 | attr.type = pmu->type; | |
930a2e29 | 1229 | evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL); |
ad962273 AH |
1230 | return evsel ? 0 : -ENOMEM; |
1231 | } | |
1232 | ||
46441bdc | 1233 | if (perf_pmu__check_alias(pmu, head_config, &info)) |
a6146d50 ZY |
1234 | return -EINVAL; |
1235 | ||
5f537a26 JO |
1236 | /* |
1237 | * Configure hardcoded terms first, no need to check | |
1238 | * return value when called with fail == 0 ;) | |
1239 | */ | |
0b8891a8 | 1240 | if (config_attr(&attr, head_config, data->error, config_term_pmu)) |
c056ba6a | 1241 | return -EINVAL; |
5f537a26 | 1242 | |
930a2e29 JO |
1243 | if (get_config_terms(head_config, &config_terms)) |
1244 | return -ENOMEM; | |
1245 | ||
e64b020b | 1246 | if (perf_pmu__config(pmu, &attr, head_config, data->error)) |
5f537a26 JO |
1247 | return -EINVAL; |
1248 | ||
36adec85 | 1249 | evsel = __add_event(list, &data->idx, &attr, |
e814fddd | 1250 | get_config_name(head_config), pmu->cpus, |
930a2e29 | 1251 | &config_terms); |
410136f5 | 1252 | if (evsel) { |
46441bdc MF |
1253 | evsel->unit = info.unit; |
1254 | evsel->scale = info.scale; | |
044330c1 | 1255 | evsel->per_pkg = info.per_pkg; |
1d9e446b | 1256 | evsel->snapshot = info.snapshot; |
410136f5 SE |
1257 | } |
1258 | ||
1259 | return evsel ? 0 : -ENOMEM; | |
5f537a26 JO |
1260 | } |
1261 | ||
6a4bb04c JO |
1262 | int parse_events__modifier_group(struct list_head *list, |
1263 | char *event_mod) | |
89efb029 | 1264 | { |
6a4bb04c JO |
1265 | return parse_events__modifier_event(list, event_mod, true); |
1266 | } | |
1267 | ||
63dab225 | 1268 | void parse_events__set_leader(char *name, struct list_head *list) |
6a4bb04c JO |
1269 | { |
1270 | struct perf_evsel *leader; | |
1271 | ||
854f7363 WN |
1272 | if (list_empty(list)) { |
1273 | WARN_ONCE(true, "WARNING: failed to set leader: empty list"); | |
1274 | return; | |
1275 | } | |
1276 | ||
63dab225 ACM |
1277 | __perf_evlist__set_leader(list); |
1278 | leader = list_entry(list->next, struct perf_evsel, node); | |
6a4bb04c | 1279 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
1280 | } |
1281 | ||
c5cd8ac0 | 1282 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
1283 | void parse_events_update_lists(struct list_head *list_event, |
1284 | struct list_head *list_all) | |
1285 | { | |
1286 | /* | |
1287 | * Called for single event definition. Update the | |
89efb029 | 1288 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
1289 | * list, for next event definition. |
1290 | */ | |
1291 | list_splice_tail(list_event, list_all); | |
b847cbdc | 1292 | free(list_event); |
5d7be90e JO |
1293 | } |
1294 | ||
f5b1135b JO |
1295 | struct event_modifier { |
1296 | int eu; | |
1297 | int ek; | |
1298 | int eh; | |
1299 | int eH; | |
1300 | int eG; | |
a1e12da4 | 1301 | int eI; |
f5b1135b | 1302 | int precise; |
7f94af7a | 1303 | int precise_max; |
f5b1135b | 1304 | int exclude_GH; |
3c176311 | 1305 | int sample_read; |
e9a7c414 | 1306 | int pinned; |
f5b1135b JO |
1307 | }; |
1308 | ||
1309 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
1310 | struct perf_evsel *evsel) | |
61c45981 | 1311 | { |
f5b1135b JO |
1312 | int eu = evsel ? evsel->attr.exclude_user : 0; |
1313 | int ek = evsel ? evsel->attr.exclude_kernel : 0; | |
1314 | int eh = evsel ? evsel->attr.exclude_hv : 0; | |
1315 | int eH = evsel ? evsel->attr.exclude_host : 0; | |
1316 | int eG = evsel ? evsel->attr.exclude_guest : 0; | |
a1e12da4 | 1317 | int eI = evsel ? evsel->attr.exclude_idle : 0; |
f5b1135b | 1318 | int precise = evsel ? evsel->attr.precise_ip : 0; |
7f94af7a | 1319 | int precise_max = 0; |
3c176311 | 1320 | int sample_read = 0; |
e9a7c414 | 1321 | int pinned = evsel ? evsel->attr.pinned : 0; |
a21ca2ca | 1322 | |
f5b1135b JO |
1323 | int exclude = eu | ek | eh; |
1324 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
1325 | ||
f5b1135b | 1326 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 1327 | |
61c45981 | 1328 | while (*str) { |
ab608344 PZ |
1329 | if (*str == 'u') { |
1330 | if (!exclude) | |
1331 | exclude = eu = ek = eh = 1; | |
61c45981 | 1332 | eu = 0; |
ab608344 PZ |
1333 | } else if (*str == 'k') { |
1334 | if (!exclude) | |
1335 | exclude = eu = ek = eh = 1; | |
61c45981 | 1336 | ek = 0; |
ab608344 PZ |
1337 | } else if (*str == 'h') { |
1338 | if (!exclude) | |
1339 | exclude = eu = ek = eh = 1; | |
61c45981 | 1340 | eh = 0; |
99320cc8 JR |
1341 | } else if (*str == 'G') { |
1342 | if (!exclude_GH) | |
1343 | exclude_GH = eG = eH = 1; | |
1344 | eG = 0; | |
1345 | } else if (*str == 'H') { | |
1346 | if (!exclude_GH) | |
1347 | exclude_GH = eG = eH = 1; | |
1348 | eH = 0; | |
a1e12da4 JO |
1349 | } else if (*str == 'I') { |
1350 | eI = 1; | |
ab608344 PZ |
1351 | } else if (*str == 'p') { |
1352 | precise++; | |
1342798c DA |
1353 | /* use of precise requires exclude_guest */ |
1354 | if (!exclude_GH) | |
1355 | eG = 1; | |
7f94af7a JO |
1356 | } else if (*str == 'P') { |
1357 | precise_max = 1; | |
3c176311 JO |
1358 | } else if (*str == 'S') { |
1359 | sample_read = 1; | |
e9a7c414 ME |
1360 | } else if (*str == 'D') { |
1361 | pinned = 1; | |
ab608344 | 1362 | } else |
61c45981 | 1363 | break; |
ab608344 | 1364 | |
61c45981 | 1365 | ++str; |
5242519b | 1366 | } |
ceb53fbf | 1367 | |
89812fc8 JO |
1368 | /* |
1369 | * precise ip: | |
1370 | * | |
1371 | * 0 - SAMPLE_IP can have arbitrary skid | |
1372 | * 1 - SAMPLE_IP must have constant skid | |
1373 | * 2 - SAMPLE_IP requested to have 0 skid | |
1374 | * 3 - SAMPLE_IP must have 0 skid | |
1375 | * | |
1376 | * See also PERF_RECORD_MISC_EXACT_IP | |
1377 | */ | |
1378 | if (precise > 3) | |
1379 | return -EINVAL; | |
ceb53fbf | 1380 | |
f5b1135b JO |
1381 | mod->eu = eu; |
1382 | mod->ek = ek; | |
1383 | mod->eh = eh; | |
1384 | mod->eH = eH; | |
1385 | mod->eG = eG; | |
a1e12da4 | 1386 | mod->eI = eI; |
f5b1135b | 1387 | mod->precise = precise; |
7f94af7a | 1388 | mod->precise_max = precise_max; |
f5b1135b | 1389 | mod->exclude_GH = exclude_GH; |
3c176311 | 1390 | mod->sample_read = sample_read; |
e9a7c414 ME |
1391 | mod->pinned = pinned; |
1392 | ||
f5b1135b JO |
1393 | return 0; |
1394 | } | |
1395 | ||
534123f4 JO |
1396 | /* |
1397 | * Basic modifier sanity check to validate it contains only one | |
1398 | * instance of any modifier (apart from 'p') present. | |
1399 | */ | |
1400 | static int check_modifier(char *str) | |
1401 | { | |
1402 | char *p = str; | |
1403 | ||
1404 | /* The sizeof includes 0 byte as well. */ | |
7f94af7a | 1405 | if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1)) |
534123f4 JO |
1406 | return -1; |
1407 | ||
1408 | while (*p) { | |
1409 | if (*p != 'p' && strchr(p + 1, *p)) | |
1410 | return -1; | |
1411 | p++; | |
1412 | } | |
1413 | ||
1414 | return 0; | |
1415 | } | |
1416 | ||
f5b1135b JO |
1417 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
1418 | { | |
1419 | struct perf_evsel *evsel; | |
1420 | struct event_modifier mod; | |
1421 | ||
1422 | if (str == NULL) | |
1423 | return 0; | |
1424 | ||
534123f4 JO |
1425 | if (check_modifier(str)) |
1426 | return -EINVAL; | |
1427 | ||
f5b1135b JO |
1428 | if (!add && get_event_modifier(&mod, str, NULL)) |
1429 | return -EINVAL; | |
1430 | ||
e5cadb93 | 1431 | __evlist__for_each_entry(list, evsel) { |
f5b1135b JO |
1432 | if (add && get_event_modifier(&mod, str, evsel)) |
1433 | return -EINVAL; | |
1434 | ||
1435 | evsel->attr.exclude_user = mod.eu; | |
1436 | evsel->attr.exclude_kernel = mod.ek; | |
1437 | evsel->attr.exclude_hv = mod.eh; | |
1438 | evsel->attr.precise_ip = mod.precise; | |
1439 | evsel->attr.exclude_host = mod.eH; | |
1440 | evsel->attr.exclude_guest = mod.eG; | |
a1e12da4 | 1441 | evsel->attr.exclude_idle = mod.eI; |
f5b1135b | 1442 | evsel->exclude_GH = mod.exclude_GH; |
3c176311 | 1443 | evsel->sample_read = mod.sample_read; |
7f94af7a | 1444 | evsel->precise_max = mod.precise_max; |
e9a7c414 ME |
1445 | |
1446 | if (perf_evsel__is_group_leader(evsel)) | |
1447 | evsel->attr.pinned = mod.pinned; | |
89812fc8 | 1448 | } |
ceb53fbf | 1449 | |
61c45981 PM |
1450 | return 0; |
1451 | } | |
8ad8db37 | 1452 | |
ac2ba9f3 RR |
1453 | int parse_events_name(struct list_head *list, char *name) |
1454 | { | |
1455 | struct perf_evsel *evsel; | |
1456 | ||
e5cadb93 | 1457 | __evlist__for_each_entry(list, evsel) { |
ac2ba9f3 RR |
1458 | if (!evsel->name) |
1459 | evsel->name = strdup(name); | |
1460 | } | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
dcb4e102 KL |
1465 | static int |
1466 | comp_pmu(const void *p1, const void *p2) | |
1467 | { | |
1468 | struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1; | |
1469 | struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2; | |
1470 | ||
e312bcf1 | 1471 | return strcasecmp(pmu1->symbol, pmu2->symbol); |
dcb4e102 KL |
1472 | } |
1473 | ||
1474 | static void perf_pmu__parse_cleanup(void) | |
1475 | { | |
1476 | if (perf_pmu_events_list_num > 0) { | |
1477 | struct perf_pmu_event_symbol *p; | |
1478 | int i; | |
1479 | ||
1480 | for (i = 0; i < perf_pmu_events_list_num; i++) { | |
1481 | p = perf_pmu_events_list + i; | |
360e071b | 1482 | zfree(&p->symbol); |
dcb4e102 | 1483 | } |
506fde11 | 1484 | zfree(&perf_pmu_events_list); |
dcb4e102 KL |
1485 | perf_pmu_events_list_num = 0; |
1486 | } | |
1487 | } | |
1488 | ||
1489 | #define SET_SYMBOL(str, stype) \ | |
1490 | do { \ | |
1491 | p->symbol = str; \ | |
1492 | if (!p->symbol) \ | |
1493 | goto err; \ | |
1494 | p->type = stype; \ | |
1495 | } while (0) | |
1496 | ||
1497 | /* | |
1498 | * Read the pmu events list from sysfs | |
1499 | * Save it into perf_pmu_events_list | |
1500 | */ | |
1501 | static void perf_pmu__parse_init(void) | |
1502 | { | |
1503 | ||
1504 | struct perf_pmu *pmu = NULL; | |
1505 | struct perf_pmu_alias *alias; | |
1506 | int len = 0; | |
1507 | ||
231bb2aa AK |
1508 | pmu = NULL; |
1509 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1510 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1511 | if (strchr(alias->name, '-')) | |
1512 | len++; | |
1513 | len++; | |
1514 | } | |
1515 | } | |
1516 | ||
1517 | if (len == 0) { | |
dcb4e102 KL |
1518 | perf_pmu_events_list_num = -1; |
1519 | return; | |
1520 | } | |
dcb4e102 KL |
1521 | perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len); |
1522 | if (!perf_pmu_events_list) | |
1523 | return; | |
1524 | perf_pmu_events_list_num = len; | |
1525 | ||
1526 | len = 0; | |
231bb2aa AK |
1527 | pmu = NULL; |
1528 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1529 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1530 | struct perf_pmu_event_symbol *p = perf_pmu_events_list + len; | |
1531 | char *tmp = strchr(alias->name, '-'); | |
1532 | ||
1533 | if (tmp != NULL) { | |
1534 | SET_SYMBOL(strndup(alias->name, tmp - alias->name), | |
1535 | PMU_EVENT_SYMBOL_PREFIX); | |
1536 | p++; | |
1537 | SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX); | |
1538 | len += 2; | |
1539 | } else { | |
1540 | SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL); | |
1541 | len++; | |
1542 | } | |
dcb4e102 KL |
1543 | } |
1544 | } | |
1545 | qsort(perf_pmu_events_list, len, | |
1546 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
1547 | ||
1548 | return; | |
1549 | err: | |
1550 | perf_pmu__parse_cleanup(); | |
1551 | } | |
1552 | ||
1553 | enum perf_pmu_event_symbol_type | |
1554 | perf_pmu__parse_check(const char *name) | |
1555 | { | |
1556 | struct perf_pmu_event_symbol p, *r; | |
1557 | ||
1558 | /* scan kernel pmu events from sysfs if needed */ | |
1559 | if (perf_pmu_events_list_num == 0) | |
1560 | perf_pmu__parse_init(); | |
1561 | /* | |
1562 | * name "cpu" could be prefix of cpu-cycles or cpu// events. | |
1563 | * cpu-cycles has been handled by hardcode. | |
1564 | * So it must be cpu// events, not kernel pmu event. | |
1565 | */ | |
1566 | if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu")) | |
1567 | return PMU_EVENT_SYMBOL_ERR; | |
1568 | ||
1569 | p.symbol = strdup(name); | |
1570 | r = bsearch(&p, perf_pmu_events_list, | |
1571 | (size_t) perf_pmu_events_list_num, | |
1572 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
360e071b | 1573 | zfree(&p.symbol); |
dcb4e102 KL |
1574 | return r ? r->type : PMU_EVENT_SYMBOL_ERR; |
1575 | } | |
1576 | ||
90e2b22d | 1577 | static int parse_events__scanner(const char *str, void *data, int start_token) |
61c45981 | 1578 | { |
89812fc8 | 1579 | YY_BUFFER_STATE buffer; |
ac20de6f | 1580 | void *scanner; |
46010ab2 | 1581 | int ret; |
bcd3279f | 1582 | |
90e2b22d | 1583 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
1584 | if (ret) |
1585 | return ret; | |
1586 | ||
1587 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 1588 | |
82ba1f2f JO |
1589 | #ifdef PARSER_DEBUG |
1590 | parse_events_debug = 1; | |
1591 | #endif | |
ac20de6f ZY |
1592 | ret = parse_events_parse(data, scanner); |
1593 | ||
1594 | parse_events__flush_buffer(buffer, scanner); | |
1595 | parse_events__delete_buffer(buffer, scanner); | |
1596 | parse_events_lex_destroy(scanner); | |
1597 | return ret; | |
1598 | } | |
bcd3279f | 1599 | |
90e2b22d JO |
1600 | /* |
1601 | * parse event config string, return a list of event terms. | |
1602 | */ | |
1603 | int parse_events_terms(struct list_head *terms, const char *str) | |
1604 | { | |
23b6339b | 1605 | struct parse_events_terms data = { |
90e2b22d JO |
1606 | .terms = NULL, |
1607 | }; | |
1608 | int ret; | |
1609 | ||
1610 | ret = parse_events__scanner(str, &data, PE_START_TERMS); | |
1611 | if (!ret) { | |
1612 | list_splice(data.terms, terms); | |
74cf249d | 1613 | zfree(&data.terms); |
90e2b22d JO |
1614 | return 0; |
1615 | } | |
1616 | ||
2146afc6 | 1617 | parse_events_terms__delete(data.terms); |
90e2b22d JO |
1618 | return ret; |
1619 | } | |
1620 | ||
b39b8393 JO |
1621 | int parse_events(struct perf_evlist *evlist, const char *str, |
1622 | struct parse_events_error *err) | |
ac20de6f | 1623 | { |
23b6339b | 1624 | struct parse_events_evlist data = { |
7630b3e2 WN |
1625 | .list = LIST_HEAD_INIT(data.list), |
1626 | .idx = evlist->nr_entries, | |
1627 | .error = err, | |
1628 | .evlist = evlist, | |
ac20de6f ZY |
1629 | }; |
1630 | int ret; | |
bcd3279f | 1631 | |
90e2b22d | 1632 | ret = parse_events__scanner(str, &data, PE_START_EVENTS); |
dcb4e102 | 1633 | perf_pmu__parse_cleanup(); |
89812fc8 | 1634 | if (!ret) { |
15bfd2cc WN |
1635 | struct perf_evsel *last; |
1636 | ||
854f7363 WN |
1637 | if (list_empty(&data.list)) { |
1638 | WARN_ONCE(true, "WARNING: event parser found nothing"); | |
1639 | return -1; | |
1640 | } | |
1641 | ||
f114d6ef | 1642 | perf_evlist__splice_list_tail(evlist, &data.list); |
97f63e4a | 1643 | evlist->nr_groups += data.nr_groups; |
15bfd2cc WN |
1644 | last = perf_evlist__last(evlist); |
1645 | last->cmdline_group_boundary = true; | |
1646 | ||
89812fc8 JO |
1647 | return 0; |
1648 | } | |
bcd3279f | 1649 | |
5d7be90e JO |
1650 | /* |
1651 | * There are 2 users - builtin-record and builtin-test objects. | |
1652 | * Both call perf_evlist__delete in case of error, so we dont | |
1653 | * need to bother. | |
1654 | */ | |
bcd3279f | 1655 | return ret; |
8ad8db37 IM |
1656 | } |
1657 | ||
b39b8393 JO |
1658 | #define MAX_WIDTH 1000 |
1659 | static int get_term_width(void) | |
1660 | { | |
1661 | struct winsize ws; | |
1662 | ||
1663 | get_term_dimensions(&ws); | |
1664 | return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col; | |
1665 | } | |
1666 | ||
1667 | static void parse_events_print_error(struct parse_events_error *err, | |
1668 | const char *event) | |
1669 | { | |
1670 | const char *str = "invalid or unsupported event: "; | |
1671 | char _buf[MAX_WIDTH]; | |
1672 | char *buf = (char *) event; | |
1673 | int idx = 0; | |
1674 | ||
1675 | if (err->str) { | |
1676 | /* -2 for extra '' in the final fprintf */ | |
1677 | int width = get_term_width() - 2; | |
1678 | int len_event = strlen(event); | |
1679 | int len_str, max_len, cut = 0; | |
1680 | ||
1681 | /* | |
1682 | * Maximum error index indent, we will cut | |
1683 | * the event string if it's bigger. | |
1684 | */ | |
141b2d31 | 1685 | int max_err_idx = 13; |
b39b8393 JO |
1686 | |
1687 | /* | |
1688 | * Let's be specific with the message when | |
1689 | * we have the precise error. | |
1690 | */ | |
1691 | str = "event syntax error: "; | |
1692 | len_str = strlen(str); | |
1693 | max_len = width - len_str; | |
1694 | ||
1695 | buf = _buf; | |
1696 | ||
bd1a0be5 | 1697 | /* We're cutting from the beginning. */ |
b39b8393 JO |
1698 | if (err->idx > max_err_idx) |
1699 | cut = err->idx - max_err_idx; | |
1700 | ||
1701 | strncpy(buf, event + cut, max_len); | |
1702 | ||
1703 | /* Mark cut parts with '..' on both sides. */ | |
1704 | if (cut) | |
1705 | buf[0] = buf[1] = '.'; | |
1706 | ||
1707 | if ((len_event - cut) > max_len) { | |
1708 | buf[max_len - 1] = buf[max_len - 2] = '.'; | |
1709 | buf[max_len] = 0; | |
1710 | } | |
1711 | ||
1712 | idx = len_str + err->idx - cut; | |
1713 | } | |
1714 | ||
1715 | fprintf(stderr, "%s'%s'\n", str, buf); | |
1716 | if (idx) { | |
1717 | fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str); | |
1718 | if (err->help) | |
1719 | fprintf(stderr, "\n%s\n", err->help); | |
360e071b TS |
1720 | zfree(&err->str); |
1721 | zfree(&err->help); | |
b39b8393 JO |
1722 | } |
1723 | ||
1724 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); | |
1725 | } | |
1726 | ||
1727 | #undef MAX_WIDTH | |
1728 | ||
f120f9d5 | 1729 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 1730 | int unset __maybe_unused) |
f120f9d5 JO |
1731 | { |
1732 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
b39b8393 JO |
1733 | struct parse_events_error err = { .idx = 0, }; |
1734 | int ret = parse_events(evlist, str, &err); | |
1735 | ||
1736 | if (ret) | |
1737 | parse_events_print_error(&err, str); | |
9175ce1f | 1738 | |
9175ce1f | 1739 | return ret; |
f120f9d5 JO |
1740 | } |
1741 | ||
4ba1faa1 WN |
1742 | static int |
1743 | foreach_evsel_in_last_glob(struct perf_evlist *evlist, | |
1744 | int (*func)(struct perf_evsel *evsel, | |
1745 | const void *arg), | |
1746 | const void *arg) | |
c171b552 | 1747 | { |
69aad6f1 | 1748 | struct perf_evsel *last = NULL; |
4ba1faa1 | 1749 | int err; |
c171b552 | 1750 | |
854f7363 WN |
1751 | /* |
1752 | * Don't return when list_empty, give func a chance to report | |
1753 | * error when it found last == NULL. | |
1754 | * | |
1755 | * So no need to WARN here, let *func do this. | |
1756 | */ | |
361c99a6 | 1757 | if (evlist->nr_entries > 0) |
0c21f736 | 1758 | last = perf_evlist__last(evlist); |
69aad6f1 | 1759 | |
15bfd2cc | 1760 | do { |
4ba1faa1 WN |
1761 | err = (*func)(last, arg); |
1762 | if (err) | |
15bfd2cc | 1763 | return -1; |
4ba1faa1 WN |
1764 | if (!last) |
1765 | return 0; | |
15bfd2cc WN |
1766 | |
1767 | if (last->node.prev == &evlist->entries) | |
1768 | return 0; | |
1769 | last = list_entry(last->node.prev, struct perf_evsel, node); | |
1770 | } while (!last->cmdline_group_boundary); | |
c171b552 LZ |
1771 | |
1772 | return 0; | |
1773 | } | |
1774 | ||
4ba1faa1 WN |
1775 | static int set_filter(struct perf_evsel *evsel, const void *arg) |
1776 | { | |
1777 | const char *str = arg; | |
1e857484 MP |
1778 | bool found = false; |
1779 | int nr_addr_filters = 0; | |
1780 | struct perf_pmu *pmu = NULL; | |
4ba1faa1 | 1781 | |
1e857484 MP |
1782 | if (evsel == NULL) |
1783 | goto err; | |
1784 | ||
1785 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { | |
1786 | if (perf_evsel__append_tp_filter(evsel, str) < 0) { | |
1787 | fprintf(stderr, | |
1788 | "not enough memory to hold filter string\n"); | |
1789 | return -1; | |
1790 | } | |
1791 | ||
1792 | return 0; | |
4ba1faa1 WN |
1793 | } |
1794 | ||
1e857484 MP |
1795 | while ((pmu = perf_pmu__scan(pmu)) != NULL) |
1796 | if (pmu->type == evsel->attr.type) { | |
1797 | found = true; | |
1798 | break; | |
1799 | } | |
1800 | ||
1801 | if (found) | |
1802 | perf_pmu__scan_file(pmu, "nr_addr_filters", | |
1803 | "%d", &nr_addr_filters); | |
1804 | ||
1805 | if (!nr_addr_filters) | |
1806 | goto err; | |
1807 | ||
1808 | if (perf_evsel__append_addr_filter(evsel, str) < 0) { | |
4ba1faa1 WN |
1809 | fprintf(stderr, |
1810 | "not enough memory to hold filter string\n"); | |
1811 | return -1; | |
1812 | } | |
1813 | ||
1814 | return 0; | |
1e857484 MP |
1815 | |
1816 | err: | |
1817 | fprintf(stderr, | |
1818 | "--filter option should follow a -e tracepoint or HW tracer option\n"); | |
1819 | ||
1820 | return -1; | |
4ba1faa1 WN |
1821 | } |
1822 | ||
1823 | int parse_filter(const struct option *opt, const char *str, | |
1824 | int unset __maybe_unused) | |
1825 | { | |
1826 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
1827 | ||
1828 | return foreach_evsel_in_last_glob(evlist, set_filter, | |
1829 | (const void *)str); | |
1830 | } | |
1831 | ||
1832 | static int add_exclude_perf_filter(struct perf_evsel *evsel, | |
1833 | const void *arg __maybe_unused) | |
1834 | { | |
1835 | char new_filter[64]; | |
1836 | ||
1837 | if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) { | |
1838 | fprintf(stderr, | |
1839 | "--exclude-perf option should follow a -e tracepoint option\n"); | |
1840 | return -1; | |
1841 | } | |
1842 | ||
1843 | snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid()); | |
1844 | ||
3541c034 | 1845 | if (perf_evsel__append_tp_filter(evsel, new_filter) < 0) { |
4ba1faa1 WN |
1846 | fprintf(stderr, |
1847 | "not enough memory to hold filter string\n"); | |
1848 | return -1; | |
1849 | } | |
1850 | ||
1851 | return 0; | |
1852 | } | |
1853 | ||
1854 | int exclude_perf(const struct option *opt, | |
1855 | const char *arg __maybe_unused, | |
1856 | int unset __maybe_unused) | |
1857 | { | |
1858 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
1859 | ||
1860 | return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter, | |
1861 | NULL); | |
1862 | } | |
1863 | ||
86847b62 | 1864 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
1865 | "Hardware event", |
1866 | "Software event", | |
1867 | "Tracepoint event", | |
1868 | "Hardware cache event", | |
41bdcb23 LW |
1869 | "Raw hardware event descriptor", |
1870 | "Hardware breakpoint", | |
86847b62 TG |
1871 | }; |
1872 | ||
ab0e4800 YS |
1873 | static int cmp_string(const void *a, const void *b) |
1874 | { | |
1875 | const char * const *as = a; | |
1876 | const char * const *bs = b; | |
1877 | ||
1878 | return strcmp(*as, *bs); | |
1879 | } | |
1880 | ||
f6bdafef JB |
1881 | /* |
1882 | * Print the events from <debugfs_mount_point>/tracing/events | |
1883 | */ | |
1884 | ||
a3277d2d FW |
1885 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
1886 | bool name_only) | |
f6bdafef JB |
1887 | { |
1888 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 1889 | struct dirent *sys_dirent, *evt_dirent; |
f6bdafef | 1890 | char evt_path[MAXPATHLEN]; |
725b1368 | 1891 | char dir_path[MAXPATHLEN]; |
ab0e4800 YS |
1892 | char **evt_list = NULL; |
1893 | unsigned int evt_i = 0, evt_num = 0; | |
1894 | bool evt_num_known = false; | |
f6bdafef | 1895 | |
ab0e4800 | 1896 | restart: |
ebf294bf | 1897 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 1898 | if (!sys_dir) |
725b1368 | 1899 | return; |
6b58e7f1 | 1900 | |
ab0e4800 YS |
1901 | if (evt_num_known) { |
1902 | evt_list = zalloc(sizeof(char *) * evt_num); | |
1903 | if (!evt_list) | |
1904 | goto out_close_sys_dir; | |
1905 | } | |
1906 | ||
22a9f41b | 1907 | for_each_subsystem(sys_dir, sys_dirent) { |
48000a1a | 1908 | if (subsys_glob != NULL && |
22a9f41b | 1909 | !strglobmatch(sys_dirent->d_name, subsys_glob)) |
668b8788 | 1910 | continue; |
725b1368 | 1911 | |
ebf294bf | 1912 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 1913 | sys_dirent->d_name); |
725b1368 ED |
1914 | evt_dir = opendir(dir_path); |
1915 | if (!evt_dir) | |
6b58e7f1 | 1916 | continue; |
725b1368 | 1917 | |
22a9f41b | 1918 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
48000a1a | 1919 | if (event_glob != NULL && |
22a9f41b | 1920 | !strglobmatch(evt_dirent->d_name, event_glob)) |
668b8788 ACM |
1921 | continue; |
1922 | ||
ab0e4800 YS |
1923 | if (!evt_num_known) { |
1924 | evt_num++; | |
a3277d2d FW |
1925 | continue; |
1926 | } | |
1927 | ||
f6bdafef | 1928 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 1929 | sys_dirent->d_name, evt_dirent->d_name); |
ab0e4800 YS |
1930 | |
1931 | evt_list[evt_i] = strdup(evt_path); | |
1932 | if (evt_list[evt_i] == NULL) | |
1933 | goto out_close_evt_dir; | |
1934 | evt_i++; | |
f6bdafef JB |
1935 | } |
1936 | closedir(evt_dir); | |
1937 | } | |
f6bdafef | 1938 | closedir(sys_dir); |
ab0e4800 YS |
1939 | |
1940 | if (!evt_num_known) { | |
1941 | evt_num_known = true; | |
1942 | goto restart; | |
1943 | } | |
1944 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
1945 | evt_i = 0; | |
1946 | while (evt_i < evt_num) { | |
1947 | if (name_only) { | |
1948 | printf("%s ", evt_list[evt_i++]); | |
1949 | continue; | |
1950 | } | |
1951 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
1952 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
1953 | } | |
dfc431cb | 1954 | if (evt_num && pager_in_use()) |
ab0e4800 YS |
1955 | printf("\n"); |
1956 | ||
1957 | out_free: | |
1958 | evt_num = evt_i; | |
1959 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
1960 | zfree(&evt_list[evt_i]); | |
1961 | zfree(&evt_list); | |
1962 | return; | |
1963 | ||
1964 | out_close_evt_dir: | |
1965 | closedir(evt_dir); | |
1966 | out_close_sys_dir: | |
1967 | closedir(sys_dir); | |
1968 | ||
1969 | printf("FATAL: not enough memory to print %s\n", | |
1970 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
1971 | if (evt_list) | |
1972 | goto out_free; | |
f6bdafef JB |
1973 | } |
1974 | ||
20c457b8 TR |
1975 | /* |
1976 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
1977 | */ | |
1978 | ||
1979 | int is_valid_tracepoint(const char *event_string) | |
1980 | { | |
1981 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 1982 | struct dirent *sys_dirent, *evt_dirent; |
20c457b8 TR |
1983 | char evt_path[MAXPATHLEN]; |
1984 | char dir_path[MAXPATHLEN]; | |
1985 | ||
ebf294bf | 1986 | sys_dir = opendir(tracing_events_path); |
20c457b8 TR |
1987 | if (!sys_dir) |
1988 | return 0; | |
1989 | ||
22a9f41b | 1990 | for_each_subsystem(sys_dir, sys_dirent) { |
20c457b8 | 1991 | |
ebf294bf | 1992 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
22a9f41b | 1993 | sys_dirent->d_name); |
20c457b8 TR |
1994 | evt_dir = opendir(dir_path); |
1995 | if (!evt_dir) | |
1996 | continue; | |
1997 | ||
22a9f41b | 1998 | for_each_event(sys_dirent, evt_dir, evt_dirent) { |
20c457b8 | 1999 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2000 | sys_dirent->d_name, evt_dirent->d_name); |
20c457b8 TR |
2001 | if (!strcmp(evt_path, event_string)) { |
2002 | closedir(evt_dir); | |
2003 | closedir(sys_dir); | |
2004 | return 1; | |
2005 | } | |
2006 | } | |
2007 | closedir(evt_dir); | |
2008 | } | |
2009 | closedir(sys_dir); | |
2010 | return 0; | |
2011 | } | |
2012 | ||
b41f1cec NK |
2013 | static bool is_event_supported(u8 type, unsigned config) |
2014 | { | |
2015 | bool ret = true; | |
88fee52e | 2016 | int open_return; |
b41f1cec NK |
2017 | struct perf_evsel *evsel; |
2018 | struct perf_event_attr attr = { | |
2019 | .type = type, | |
2020 | .config = config, | |
2021 | .disabled = 1, | |
b41f1cec | 2022 | }; |
89896051 ACM |
2023 | struct thread_map *tmap = thread_map__new_by_tid(0); |
2024 | ||
2025 | if (tmap == NULL) | |
2026 | return false; | |
b41f1cec | 2027 | |
ef503831 | 2028 | evsel = perf_evsel__new(&attr); |
b41f1cec | 2029 | if (evsel) { |
89896051 | 2030 | open_return = perf_evsel__open(evsel, NULL, tmap); |
88fee52e VW |
2031 | ret = open_return >= 0; |
2032 | ||
2033 | if (open_return == -EACCES) { | |
2034 | /* | |
2035 | * This happens if the paranoid value | |
2036 | * /proc/sys/kernel/perf_event_paranoid is set to 2 | |
2037 | * Re-run with exclude_kernel set; we don't do that | |
2038 | * by default as some ARM machines do not support it. | |
2039 | * | |
2040 | */ | |
2041 | evsel->attr.exclude_kernel = 1; | |
89896051 | 2042 | ret = perf_evsel__open(evsel, NULL, tmap) >= 0; |
88fee52e | 2043 | } |
b41f1cec NK |
2044 | perf_evsel__delete(evsel); |
2045 | } | |
2046 | ||
2047 | return ret; | |
2048 | } | |
2049 | ||
40218dae MH |
2050 | void print_sdt_events(const char *subsys_glob, const char *event_glob, |
2051 | bool name_only) | |
2052 | { | |
2053 | struct probe_cache *pcache; | |
2054 | struct probe_cache_entry *ent; | |
2055 | struct strlist *bidlist, *sdtlist; | |
2056 | struct strlist_config cfg = {.dont_dupstr = true}; | |
2057 | struct str_node *nd, *nd2; | |
2058 | char *buf, *path, *ptr = NULL; | |
2059 | bool show_detail = false; | |
2060 | int ret; | |
2061 | ||
2062 | sdtlist = strlist__new(NULL, &cfg); | |
2063 | if (!sdtlist) { | |
2064 | pr_debug("Failed to allocate new strlist for SDT\n"); | |
2065 | return; | |
2066 | } | |
2067 | bidlist = build_id_cache__list_all(true); | |
2068 | if (!bidlist) { | |
2069 | pr_debug("Failed to get buildids: %d\n", errno); | |
2070 | return; | |
2071 | } | |
2072 | strlist__for_each_entry(nd, bidlist) { | |
2073 | pcache = probe_cache__new(nd->s); | |
2074 | if (!pcache) | |
2075 | continue; | |
2076 | list_for_each_entry(ent, &pcache->entries, node) { | |
2077 | if (!ent->sdt) | |
2078 | continue; | |
2079 | if (subsys_glob && | |
2080 | !strglobmatch(ent->pev.group, subsys_glob)) | |
2081 | continue; | |
2082 | if (event_glob && | |
2083 | !strglobmatch(ent->pev.event, event_glob)) | |
2084 | continue; | |
2085 | ret = asprintf(&buf, "%s:%s@%s", ent->pev.group, | |
2086 | ent->pev.event, nd->s); | |
2087 | if (ret > 0) | |
2088 | strlist__add(sdtlist, buf); | |
2089 | } | |
2090 | probe_cache__delete(pcache); | |
2091 | } | |
2092 | strlist__delete(bidlist); | |
2093 | ||
2094 | strlist__for_each_entry(nd, sdtlist) { | |
2095 | buf = strchr(nd->s, '@'); | |
2096 | if (buf) | |
2097 | *(buf++) = '\0'; | |
2098 | if (name_only) { | |
2099 | printf("%s ", nd->s); | |
2100 | continue; | |
2101 | } | |
2102 | nd2 = strlist__next(nd); | |
2103 | if (nd2) { | |
2104 | ptr = strchr(nd2->s, '@'); | |
2105 | if (ptr) | |
2106 | *ptr = '\0'; | |
2107 | if (strcmp(nd->s, nd2->s) == 0) | |
2108 | show_detail = true; | |
2109 | } | |
2110 | if (show_detail) { | |
2111 | path = build_id_cache__origname(buf); | |
2112 | ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf); | |
2113 | if (ret > 0) { | |
2114 | printf(" %-50s [%s]\n", buf, "SDT event"); | |
2115 | free(buf); | |
2116 | } | |
2117 | } else | |
2118 | printf(" %-50s [%s]\n", nd->s, "SDT event"); | |
2119 | if (nd2) { | |
2120 | if (strcmp(nd->s, nd2->s) != 0) | |
2121 | show_detail = false; | |
2122 | if (ptr) | |
2123 | *ptr = '@'; | |
2124 | } | |
2125 | } | |
2126 | strlist__delete(sdtlist); | |
2127 | } | |
2128 | ||
a3277d2d | 2129 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 | 2130 | { |
ab0e4800 | 2131 | unsigned int type, op, i, evt_i = 0, evt_num = 0; |
0b668bc9 | 2132 | char name[64]; |
ab0e4800 YS |
2133 | char **evt_list = NULL; |
2134 | bool evt_num_known = false; | |
2135 | ||
2136 | restart: | |
2137 | if (evt_num_known) { | |
2138 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2139 | if (!evt_list) | |
2140 | goto out_enomem; | |
2141 | } | |
668b8788 ACM |
2142 | |
2143 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
2144 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
2145 | /* skip invalid cache type */ | |
0b668bc9 | 2146 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
2147 | continue; |
2148 | ||
2149 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
2150 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
2151 | name, sizeof(name)); | |
947b4ad1 | 2152 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
2153 | continue; |
2154 | ||
b41f1cec NK |
2155 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
2156 | type | (op << 8) | (i << 16))) | |
2157 | continue; | |
2158 | ||
ab0e4800 YS |
2159 | if (!evt_num_known) { |
2160 | evt_num++; | |
2161 | continue; | |
2162 | } | |
2163 | ||
2164 | evt_list[evt_i] = strdup(name); | |
2165 | if (evt_list[evt_i] == NULL) | |
2166 | goto out_enomem; | |
2167 | evt_i++; | |
668b8788 ACM |
2168 | } |
2169 | } | |
2170 | } | |
2171 | ||
ab0e4800 YS |
2172 | if (!evt_num_known) { |
2173 | evt_num_known = true; | |
2174 | goto restart; | |
2175 | } | |
2176 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2177 | evt_i = 0; | |
2178 | while (evt_i < evt_num) { | |
2179 | if (name_only) { | |
2180 | printf("%s ", evt_list[evt_i++]); | |
2181 | continue; | |
2182 | } | |
2183 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2184 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2185 | } | |
dfc431cb | 2186 | if (evt_num && pager_in_use()) |
dc098b35 | 2187 | printf("\n"); |
ab0e4800 YS |
2188 | |
2189 | out_free: | |
2190 | evt_num = evt_i; | |
2191 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2192 | zfree(&evt_list[evt_i]); | |
2193 | zfree(&evt_list); | |
2194 | return evt_num; | |
2195 | ||
2196 | out_enomem: | |
2197 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2198 | if (evt_list) | |
2199 | goto out_free; | |
2200 | return evt_num; | |
668b8788 ACM |
2201 | } |
2202 | ||
705750f2 | 2203 | void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
2204 | struct event_symbol *syms, unsigned max, |
2205 | bool name_only) | |
8ad8db37 | 2206 | { |
ab0e4800 | 2207 | unsigned int i, evt_i = 0, evt_num = 0; |
947b4ad1 | 2208 | char name[MAX_NAME_LEN]; |
ab0e4800 YS |
2209 | char **evt_list = NULL; |
2210 | bool evt_num_known = false; | |
2211 | ||
2212 | restart: | |
2213 | if (evt_num_known) { | |
2214 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2215 | if (!evt_list) | |
2216 | goto out_enomem; | |
2217 | syms -= max; | |
2218 | } | |
8ad8db37 | 2219 | |
1dc12760 | 2220 | for (i = 0; i < max; i++, syms++) { |
668b8788 | 2221 | |
e37df6c7 | 2222 | if (event_glob != NULL && syms->symbol != NULL && |
668b8788 ACM |
2223 | !(strglobmatch(syms->symbol, event_glob) || |
2224 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
2225 | continue; | |
8ad8db37 | 2226 | |
b41f1cec NK |
2227 | if (!is_event_supported(type, i)) |
2228 | continue; | |
2229 | ||
ab0e4800 YS |
2230 | if (!evt_num_known) { |
2231 | evt_num++; | |
a3277d2d FW |
2232 | continue; |
2233 | } | |
2234 | ||
ab0e4800 | 2235 | if (!name_only && strlen(syms->alias)) |
947b4ad1 | 2236 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 2237 | else |
947b4ad1 | 2238 | strncpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 2239 | |
ab0e4800 YS |
2240 | evt_list[evt_i] = strdup(name); |
2241 | if (evt_list[evt_i] == NULL) | |
2242 | goto out_enomem; | |
2243 | evt_i++; | |
8ad8db37 IM |
2244 | } |
2245 | ||
ab0e4800 YS |
2246 | if (!evt_num_known) { |
2247 | evt_num_known = true; | |
2248 | goto restart; | |
2249 | } | |
2250 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2251 | evt_i = 0; | |
2252 | while (evt_i < evt_num) { | |
2253 | if (name_only) { | |
2254 | printf("%s ", evt_list[evt_i++]); | |
2255 | continue; | |
2256 | } | |
2257 | printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); | |
2258 | } | |
dfc431cb | 2259 | if (evt_num && pager_in_use()) |
668b8788 | 2260 | printf("\n"); |
ab0e4800 YS |
2261 | |
2262 | out_free: | |
2263 | evt_num = evt_i; | |
2264 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2265 | zfree(&evt_list[evt_i]); | |
2266 | zfree(&evt_list); | |
2267 | return; | |
2268 | ||
2269 | out_enomem: | |
2270 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]); | |
2271 | if (evt_list) | |
2272 | goto out_free; | |
1dc12760 JO |
2273 | } |
2274 | ||
2275 | /* | |
2276 | * Print the help text for the event symbols: | |
2277 | */ | |
c8d6828a SB |
2278 | void print_events(const char *event_glob, bool name_only, bool quiet_flag, |
2279 | bool long_desc) | |
1dc12760 | 2280 | { |
1dc12760 | 2281 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, |
a3277d2d | 2282 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
2283 | |
2284 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 2285 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
1dc12760 | 2286 | |
a3277d2d | 2287 | print_hwcache_events(event_glob, name_only); |
668b8788 | 2288 | |
c8d6828a | 2289 | print_pmu_events(event_glob, name_only, quiet_flag, long_desc); |
dc098b35 | 2290 | |
668b8788 ACM |
2291 | if (event_glob != NULL) |
2292 | return; | |
73c24cb8 | 2293 | |
a3277d2d | 2294 | if (!name_only) { |
a3277d2d FW |
2295 | printf(" %-50s [%s]\n", |
2296 | "rNNN", | |
2297 | event_type_descriptors[PERF_TYPE_RAW]); | |
2298 | printf(" %-50s [%s]\n", | |
2299 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
2300 | event_type_descriptors[PERF_TYPE_RAW]); | |
dfc431cb ACM |
2301 | if (pager_in_use()) |
2302 | printf(" (see 'man perf-list' on how to encode it)\n\n"); | |
a3277d2d FW |
2303 | |
2304 | printf(" %-50s [%s]\n", | |
3741eb9f | 2305 | "mem:<addr>[/len][:access]", |
41bdcb23 | 2306 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
dfc431cb ACM |
2307 | if (pager_in_use()) |
2308 | printf("\n"); | |
a3277d2d | 2309 | } |
1b290d67 | 2310 | |
a3277d2d | 2311 | print_tracepoint_events(NULL, NULL, name_only); |
40218dae MH |
2312 | |
2313 | print_sdt_events(NULL, NULL, name_only); | |
8ad8db37 | 2314 | } |
8f707d84 | 2315 | |
6cee6cd3 | 2316 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 2317 | { |
16fa7e82 | 2318 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
2319 | } |
2320 | ||
6cee6cd3 | 2321 | static int new_term(struct parse_events_term **_term, int type_val, |
16fa7e82 | 2322 | int type_term, char *config, |
cecf3a2e | 2323 | char *str, u64 num, int err_term, int err_val) |
8f707d84 | 2324 | { |
6cee6cd3 | 2325 | struct parse_events_term *term; |
8f707d84 JO |
2326 | |
2327 | term = zalloc(sizeof(*term)); | |
2328 | if (!term) | |
2329 | return -ENOMEM; | |
2330 | ||
2331 | INIT_LIST_HEAD(&term->list); | |
16fa7e82 JO |
2332 | term->type_val = type_val; |
2333 | term->type_term = type_term; | |
8f707d84 | 2334 | term->config = config; |
cecf3a2e JO |
2335 | term->err_term = err_term; |
2336 | term->err_val = err_val; | |
8f707d84 | 2337 | |
16fa7e82 | 2338 | switch (type_val) { |
8f707d84 JO |
2339 | case PARSE_EVENTS__TERM_TYPE_NUM: |
2340 | term->val.num = num; | |
2341 | break; | |
2342 | case PARSE_EVENTS__TERM_TYPE_STR: | |
2343 | term->val.str = str; | |
2344 | break; | |
2345 | default: | |
4be8be6b | 2346 | free(term); |
8f707d84 JO |
2347 | return -EINVAL; |
2348 | } | |
2349 | ||
2350 | *_term = term; | |
2351 | return 0; | |
2352 | } | |
2353 | ||
6cee6cd3 | 2354 | int parse_events_term__num(struct parse_events_term **term, |
cecf3a2e | 2355 | int type_term, char *config, u64 num, |
bb78ce7d | 2356 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2357 | { |
bb78ce7d AH |
2358 | YYLTYPE *loc_term = loc_term_; |
2359 | YYLTYPE *loc_val = loc_val_; | |
2360 | ||
16fa7e82 | 2361 | return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term, |
cecf3a2e JO |
2362 | config, NULL, num, |
2363 | loc_term ? loc_term->first_column : 0, | |
2364 | loc_val ? loc_val->first_column : 0); | |
16fa7e82 JO |
2365 | } |
2366 | ||
6cee6cd3 | 2367 | int parse_events_term__str(struct parse_events_term **term, |
cecf3a2e | 2368 | int type_term, char *config, char *str, |
bb78ce7d | 2369 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2370 | { |
bb78ce7d AH |
2371 | YYLTYPE *loc_term = loc_term_; |
2372 | YYLTYPE *loc_val = loc_val_; | |
2373 | ||
16fa7e82 | 2374 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term, |
cecf3a2e JO |
2375 | config, str, 0, |
2376 | loc_term ? loc_term->first_column : 0, | |
2377 | loc_val ? loc_val->first_column : 0); | |
16fa7e82 JO |
2378 | } |
2379 | ||
6cee6cd3 | 2380 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
2381 | char *config, unsigned idx) |
2382 | { | |
2383 | struct event_symbol *sym; | |
2384 | ||
2385 | BUG_ON(idx >= PERF_COUNT_HW_MAX); | |
2386 | sym = &event_symbols_hw[idx]; | |
2387 | ||
2388 | if (config) | |
2389 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, | |
2390 | PARSE_EVENTS__TERM_TYPE_USER, config, | |
cecf3a2e | 2391 | (char *) sym->symbol, 0, 0, 0); |
1d33d6dc JO |
2392 | else |
2393 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, | |
2394 | PARSE_EVENTS__TERM_TYPE_USER, | |
cecf3a2e JO |
2395 | (char *) "event", (char *) sym->symbol, |
2396 | 0, 0, 0); | |
1d33d6dc JO |
2397 | } |
2398 | ||
6cee6cd3 ACM |
2399 | int parse_events_term__clone(struct parse_events_term **new, |
2400 | struct parse_events_term *term) | |
a6146d50 ZY |
2401 | { |
2402 | return new_term(new, term->type_val, term->type_term, term->config, | |
cecf3a2e JO |
2403 | term->val.str, term->val.num, |
2404 | term->err_term, term->err_val); | |
a6146d50 ZY |
2405 | } |
2406 | ||
fc0a2c1d | 2407 | void parse_events_terms__purge(struct list_head *terms) |
8f707d84 | 2408 | { |
6cee6cd3 | 2409 | struct parse_events_term *term, *h; |
8f707d84 | 2410 | |
a8adfceb | 2411 | list_for_each_entry_safe(term, h, terms, list) { |
2d055bf2 | 2412 | if (term->array.nr_ranges) |
360e071b | 2413 | zfree(&term->array.ranges); |
a8adfceb | 2414 | list_del_init(&term->list); |
8f707d84 | 2415 | free(term); |
a8adfceb | 2416 | } |
8f707d84 | 2417 | } |
b39b8393 | 2418 | |
2146afc6 | 2419 | void parse_events_terms__delete(struct list_head *terms) |
fc0a2c1d | 2420 | { |
2146afc6 ACM |
2421 | if (!terms) |
2422 | return; | |
fc0a2c1d | 2423 | parse_events_terms__purge(terms); |
d20a5f2b | 2424 | free(terms); |
fc0a2c1d ACM |
2425 | } |
2426 | ||
2d055bf2 WN |
2427 | void parse_events__clear_array(struct parse_events_array *a) |
2428 | { | |
360e071b | 2429 | zfree(&a->ranges); |
2d055bf2 WN |
2430 | } |
2431 | ||
b39b8393 JO |
2432 | void parse_events_evlist_error(struct parse_events_evlist *data, |
2433 | int idx, const char *str) | |
2434 | { | |
2435 | struct parse_events_error *err = data->error; | |
2436 | ||
a6ced2be AH |
2437 | if (!err) |
2438 | return; | |
b39b8393 JO |
2439 | err->idx = idx; |
2440 | err->str = strdup(str); | |
2441 | WARN_ONCE(!err->str, "WARNING: failed to allocate error string"); | |
2442 | } | |
ffeb883e | 2443 | |
17cb5f84 WN |
2444 | static void config_terms_list(char *buf, size_t buf_sz) |
2445 | { | |
2446 | int i; | |
2447 | bool first = true; | |
2448 | ||
2449 | buf[0] = '\0'; | |
2450 | for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) { | |
2451 | const char *name = config_term_names[i]; | |
2452 | ||
1669e509 WN |
2453 | if (!config_term_avail(i, NULL)) |
2454 | continue; | |
17cb5f84 WN |
2455 | if (!name) |
2456 | continue; | |
2457 | if (name[0] == '<') | |
2458 | continue; | |
2459 | ||
2460 | if (strlen(buf) + strlen(name) + 2 >= buf_sz) | |
2461 | return; | |
2462 | ||
2463 | if (!first) | |
2464 | strcat(buf, ","); | |
2465 | else | |
2466 | first = false; | |
2467 | strcat(buf, name); | |
2468 | } | |
2469 | } | |
2470 | ||
ffeb883e HK |
2471 | /* |
2472 | * Return string contains valid config terms of an event. | |
2473 | * @additional_terms: For terms such as PMU sysfs terms. | |
2474 | */ | |
2475 | char *parse_events_formats_error_string(char *additional_terms) | |
2476 | { | |
2477 | char *str; | |
626a6b78 | 2478 | /* "no-overwrite" is the longest name */ |
17cb5f84 | 2479 | char static_terms[__PARSE_EVENTS__TERM_TYPE_NR * |
626a6b78 | 2480 | (sizeof("no-overwrite") - 1)]; |
ffeb883e | 2481 | |
17cb5f84 | 2482 | config_terms_list(static_terms, sizeof(static_terms)); |
ffeb883e HK |
2483 | /* valid terms */ |
2484 | if (additional_terms) { | |
26dee028 WN |
2485 | if (asprintf(&str, "valid terms: %s,%s", |
2486 | additional_terms, static_terms) < 0) | |
ffeb883e HK |
2487 | goto fail; |
2488 | } else { | |
26dee028 | 2489 | if (asprintf(&str, "valid terms: %s", static_terms) < 0) |
ffeb883e HK |
2490 | goto fail; |
2491 | } | |
2492 | return str; | |
2493 | ||
2494 | fail: | |
2495 | return NULL; | |
2496 | } |