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Commit | Line | Data |
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d2709c7c | 1 | #include <linux/hw_breakpoint.h> |
8ad8db37 | 2 | #include "util.h" |
6b58e7f1 | 3 | #include "../perf.h" |
361c99a6 | 4 | #include "evlist.h" |
69aad6f1 | 5 | #include "evsel.h" |
8ad8db37 IM |
6 | #include "parse-options.h" |
7 | #include "parse-events.h" | |
8 | #include "exec_cmd.h" | |
50e200f0 | 9 | #include "linux/string.h" |
5aab621b | 10 | #include "symbol.h" |
5beeded1 | 11 | #include "cache.h" |
8755a8f2 | 12 | #include "header.h" |
85c66be1 | 13 | #include <lk/debugfs.h> |
ac20de6f | 14 | #include "parse-events-bison.h" |
90e2b22d | 15 | #define YY_EXTRA_TYPE int |
89812fc8 | 16 | #include "parse-events-flex.h" |
5f537a26 | 17 | #include "pmu.h" |
b41f1cec | 18 | #include "thread_map.h" |
89812fc8 JO |
19 | |
20 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 21 | |
8ad8db37 | 22 | struct event_symbol { |
83a0944f IM |
23 | const char *symbol; |
24 | const char *alias; | |
8ad8db37 IM |
25 | }; |
26 | ||
82ba1f2f JO |
27 | #ifdef PARSER_DEBUG |
28 | extern int parse_events_debug; | |
29 | #endif | |
ac20de6f | 30 | int parse_events_parse(void *data, void *scanner); |
bcd3279f | 31 | |
1dc12760 JO |
32 | static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
33 | [PERF_COUNT_HW_CPU_CYCLES] = { | |
34 | .symbol = "cpu-cycles", | |
35 | .alias = "cycles", | |
36 | }, | |
37 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
38 | .symbol = "instructions", | |
39 | .alias = "", | |
40 | }, | |
41 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
42 | .symbol = "cache-references", | |
43 | .alias = "", | |
44 | }, | |
45 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
46 | .symbol = "cache-misses", | |
47 | .alias = "", | |
48 | }, | |
49 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
50 | .symbol = "branch-instructions", | |
51 | .alias = "branches", | |
52 | }, | |
53 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
54 | .symbol = "branch-misses", | |
55 | .alias = "", | |
56 | }, | |
57 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
58 | .symbol = "bus-cycles", | |
59 | .alias = "", | |
60 | }, | |
61 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
62 | .symbol = "stalled-cycles-frontend", | |
63 | .alias = "idle-cycles-frontend", | |
64 | }, | |
65 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
66 | .symbol = "stalled-cycles-backend", | |
67 | .alias = "idle-cycles-backend", | |
68 | }, | |
69 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
70 | .symbol = "ref-cycles", | |
71 | .alias = "", | |
72 | }, | |
73 | }; | |
74 | ||
75 | static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { | |
76 | [PERF_COUNT_SW_CPU_CLOCK] = { | |
77 | .symbol = "cpu-clock", | |
78 | .alias = "", | |
79 | }, | |
80 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
81 | .symbol = "task-clock", | |
82 | .alias = "", | |
83 | }, | |
84 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
85 | .symbol = "page-faults", | |
86 | .alias = "faults", | |
87 | }, | |
88 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
89 | .symbol = "context-switches", | |
90 | .alias = "cs", | |
91 | }, | |
92 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
93 | .symbol = "cpu-migrations", | |
94 | .alias = "migrations", | |
95 | }, | |
96 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
97 | .symbol = "minor-faults", | |
98 | .alias = "", | |
99 | }, | |
100 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
101 | .symbol = "major-faults", | |
102 | .alias = "", | |
103 | }, | |
104 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
105 | .symbol = "alignment-faults", | |
106 | .alias = "", | |
107 | }, | |
108 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
109 | .symbol = "emulation-faults", | |
110 | .alias = "", | |
111 | }, | |
d22d1a2a AH |
112 | [PERF_COUNT_SW_DUMMY] = { |
113 | .symbol = "dummy", | |
114 | .alias = "", | |
115 | }, | |
8ad8db37 IM |
116 | }; |
117 | ||
cdd6c482 IM |
118 | #define __PERF_EVENT_FIELD(config, name) \ |
119 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 120 | |
1fc570ad | 121 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 122 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 123 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 124 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 125 | |
6b58e7f1 | 126 | #define for_each_subsystem(sys_dir, sys_dirent, sys_next) \ |
f6bdafef | 127 | while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \ |
6b58e7f1 | 128 | if (sys_dirent.d_type == DT_DIR && \ |
f6bdafef JB |
129 | (strcmp(sys_dirent.d_name, ".")) && \ |
130 | (strcmp(sys_dirent.d_name, ".."))) | |
131 | ||
ae07b63f PZ |
132 | static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir) |
133 | { | |
134 | char evt_path[MAXPATHLEN]; | |
135 | int fd; | |
136 | ||
ebf294bf | 137 | snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path, |
ae07b63f PZ |
138 | sys_dir->d_name, evt_dir->d_name); |
139 | fd = open(evt_path, O_RDONLY); | |
140 | if (fd < 0) | |
141 | return -EINVAL; | |
142 | close(fd); | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
6b58e7f1 | 147 | #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \ |
f6bdafef | 148 | while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \ |
6b58e7f1 | 149 | if (evt_dirent.d_type == DT_DIR && \ |
f6bdafef | 150 | (strcmp(evt_dirent.d_name, ".")) && \ |
ae07b63f PZ |
151 | (strcmp(evt_dirent.d_name, "..")) && \ |
152 | (!tp_event_has_id(&sys_dirent, &evt_dirent))) | |
f6bdafef | 153 | |
270bbbe8 | 154 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 155 | |
f6bdafef | 156 | |
1ef2ed10 | 157 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 158 | { |
1ef2ed10 | 159 | struct tracepoint_path *path = NULL; |
f6bdafef JB |
160 | DIR *sys_dir, *evt_dir; |
161 | struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; | |
8aa8a7c8 | 162 | char id_buf[24]; |
725b1368 | 163 | int fd; |
f6bdafef JB |
164 | u64 id; |
165 | char evt_path[MAXPATHLEN]; | |
725b1368 | 166 | char dir_path[MAXPATHLEN]; |
f6bdafef | 167 | |
ebf294bf | 168 | if (debugfs_valid_mountpoint(tracing_events_path)) |
1ef2ed10 | 169 | return NULL; |
f6bdafef | 170 | |
ebf294bf | 171 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 172 | if (!sys_dir) |
725b1368 | 173 | return NULL; |
6b58e7f1 UD |
174 | |
175 | for_each_subsystem(sys_dir, sys_dirent, sys_next) { | |
725b1368 | 176 | |
ebf294bf | 177 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
725b1368 ED |
178 | sys_dirent.d_name); |
179 | evt_dir = opendir(dir_path); | |
180 | if (!evt_dir) | |
6b58e7f1 | 181 | continue; |
725b1368 | 182 | |
6b58e7f1 | 183 | for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { |
725b1368 ED |
184 | |
185 | snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, | |
f6bdafef | 186 | evt_dirent.d_name); |
725b1368 | 187 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
188 | if (fd < 0) |
189 | continue; | |
190 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
191 | close(fd); | |
192 | continue; | |
193 | } | |
194 | close(fd); | |
195 | id = atoll(id_buf); | |
196 | if (id == config) { | |
197 | closedir(evt_dir); | |
198 | closedir(sys_dir); | |
59b4caeb | 199 | path = zalloc(sizeof(*path)); |
1ef2ed10 FW |
200 | path->system = malloc(MAX_EVENT_LENGTH); |
201 | if (!path->system) { | |
202 | free(path); | |
203 | return NULL; | |
204 | } | |
205 | path->name = malloc(MAX_EVENT_LENGTH); | |
206 | if (!path->name) { | |
207 | free(path->system); | |
208 | free(path); | |
209 | return NULL; | |
210 | } | |
211 | strncpy(path->system, sys_dirent.d_name, | |
212 | MAX_EVENT_LENGTH); | |
213 | strncpy(path->name, evt_dirent.d_name, | |
214 | MAX_EVENT_LENGTH); | |
215 | return path; | |
f6bdafef JB |
216 | } |
217 | } | |
218 | closedir(evt_dir); | |
219 | } | |
220 | ||
f6bdafef | 221 | closedir(sys_dir); |
1ef2ed10 FW |
222 | return NULL; |
223 | } | |
224 | ||
e7c93f09 NK |
225 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
226 | { | |
227 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
228 | char *str = strchr(name, ':'); | |
229 | ||
230 | if (path == NULL || str == NULL) { | |
231 | free(path); | |
232 | return NULL; | |
233 | } | |
234 | ||
235 | path->system = strndup(name, str - name); | |
236 | path->name = strdup(str+1); | |
237 | ||
238 | if (path->system == NULL || path->name == NULL) { | |
239 | free(path->system); | |
240 | free(path->name); | |
241 | free(path); | |
242 | path = NULL; | |
243 | } | |
244 | ||
245 | return path; | |
246 | } | |
247 | ||
1424dc96 DA |
248 | const char *event_type(int type) |
249 | { | |
250 | switch (type) { | |
251 | case PERF_TYPE_HARDWARE: | |
252 | return "hardware"; | |
253 | ||
254 | case PERF_TYPE_SOFTWARE: | |
255 | return "software"; | |
256 | ||
257 | case PERF_TYPE_TRACEPOINT: | |
258 | return "tracepoint"; | |
259 | ||
260 | case PERF_TYPE_HW_CACHE: | |
261 | return "hardware-cache"; | |
262 | ||
263 | default: | |
264 | break; | |
265 | } | |
266 | ||
267 | return "unknown"; | |
268 | } | |
269 | ||
7ae92e74 YZ |
270 | |
271 | ||
c5cd8ac0 | 272 | static int __add_event(struct list_head *list, int *idx, |
7ae92e74 YZ |
273 | struct perf_event_attr *attr, |
274 | char *name, struct cpu_map *cpus) | |
89812fc8 JO |
275 | { |
276 | struct perf_evsel *evsel; | |
277 | ||
278 | event_attr_init(attr); | |
279 | ||
280 | evsel = perf_evsel__new(attr, (*idx)++); | |
c5cd8ac0 | 281 | if (!evsel) |
89812fc8 | 282 | return -ENOMEM; |
89812fc8 | 283 | |
7ae92e74 | 284 | evsel->cpus = cpus; |
9db1763c ACM |
285 | if (name) |
286 | evsel->name = strdup(name); | |
b847cbdc | 287 | list_add_tail(&evsel->node, list); |
89812fc8 JO |
288 | return 0; |
289 | } | |
290 | ||
c5cd8ac0 | 291 | static int add_event(struct list_head *list, int *idx, |
7ae92e74 YZ |
292 | struct perf_event_attr *attr, char *name) |
293 | { | |
c5cd8ac0 | 294 | return __add_event(list, idx, attr, name, NULL); |
7ae92e74 YZ |
295 | } |
296 | ||
0b668bc9 | 297 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
298 | { |
299 | int i, j; | |
61c45981 | 300 | int n, longest = -1; |
8326f44d IM |
301 | |
302 | for (i = 0; i < size; i++) { | |
0b668bc9 | 303 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 304 | n = strlen(names[i][j]); |
89812fc8 | 305 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
306 | longest = n; |
307 | } | |
89812fc8 | 308 | if (longest > 0) |
61c45981 | 309 | return i; |
8326f44d IM |
310 | } |
311 | ||
8953645f | 312 | return -1; |
8326f44d IM |
313 | } |
314 | ||
c5cd8ac0 | 315 | int parse_events_add_cache(struct list_head *list, int *idx, |
89812fc8 | 316 | char *type, char *op_result1, char *op_result2) |
8326f44d | 317 | { |
89812fc8 JO |
318 | struct perf_event_attr attr; |
319 | char name[MAX_NAME_LEN]; | |
61c45981 | 320 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
321 | char *op_result[2] = { op_result1, op_result2 }; |
322 | int i, n; | |
8326f44d | 323 | |
8326f44d IM |
324 | /* |
325 | * No fallback - if we cannot get a clear cache type | |
326 | * then bail out: | |
327 | */ | |
0b668bc9 | 328 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 329 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 330 | if (cache_type == -1) |
89812fc8 JO |
331 | return -EINVAL; |
332 | ||
333 | n = snprintf(name, MAX_NAME_LEN, "%s", type); | |
61c45981 | 334 | |
89812fc8 JO |
335 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
336 | char *str = op_result[i]; | |
337 | ||
275ef387 | 338 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
339 | |
340 | if (cache_op == -1) { | |
0b668bc9 | 341 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 342 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 343 | if (cache_op >= 0) { |
0b668bc9 | 344 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 345 | return -EINVAL; |
61c45981 PM |
346 | continue; |
347 | } | |
348 | } | |
349 | ||
350 | if (cache_result == -1) { | |
0b668bc9 ACM |
351 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
352 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
353 | if (cache_result >= 0) |
354 | continue; | |
355 | } | |
61c45981 | 356 | } |
8326f44d | 357 | |
8326f44d IM |
358 | /* |
359 | * Fall back to reads: | |
360 | */ | |
8953645f IM |
361 | if (cache_op == -1) |
362 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 363 | |
8326f44d IM |
364 | /* |
365 | * Fall back to accesses: | |
366 | */ | |
367 | if (cache_result == -1) | |
368 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
369 | ||
89812fc8 JO |
370 | memset(&attr, 0, sizeof(attr)); |
371 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
372 | attr.type = PERF_TYPE_HW_CACHE; | |
373 | return add_event(list, idx, &attr, name); | |
bcd3279f FW |
374 | } |
375 | ||
c5cd8ac0 | 376 | static int add_tracepoint(struct list_head *list, int *idx, |
89812fc8 | 377 | char *sys_name, char *evt_name) |
bcd3279f | 378 | { |
82fe1c29 | 379 | struct perf_evsel *evsel; |
bcd3279f | 380 | |
82fe1c29 | 381 | evsel = perf_evsel__newtp(sys_name, evt_name, (*idx)++); |
c5cd8ac0 | 382 | if (!evsel) |
82fe1c29 | 383 | return -ENOMEM; |
bcd3279f | 384 | |
82fe1c29 | 385 | list_add_tail(&evsel->node, list); |
c5cd8ac0 | 386 | |
82fe1c29 | 387 | return 0; |
8326f44d IM |
388 | } |
389 | ||
c5cd8ac0 | 390 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
f35488f9 | 391 | char *sys_name, char *evt_name) |
bcd3279f FW |
392 | { |
393 | char evt_path[MAXPATHLEN]; | |
394 | struct dirent *evt_ent; | |
395 | DIR *evt_dir; | |
89812fc8 | 396 | int ret = 0; |
bcd3279f | 397 | |
ebf294bf | 398 | snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name); |
bcd3279f | 399 | evt_dir = opendir(evt_path); |
bcd3279f FW |
400 | if (!evt_dir) { |
401 | perror("Can't open event dir"); | |
89812fc8 | 402 | return -1; |
bcd3279f FW |
403 | } |
404 | ||
89812fc8 | 405 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
406 | if (!strcmp(evt_ent->d_name, ".") |
407 | || !strcmp(evt_ent->d_name, "..") | |
408 | || !strcmp(evt_ent->d_name, "enable") | |
409 | || !strcmp(evt_ent->d_name, "filter")) | |
410 | continue; | |
411 | ||
89812fc8 | 412 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
413 | continue; |
414 | ||
89812fc8 | 415 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name); |
bcd3279f FW |
416 | } |
417 | ||
0bd3f084 | 418 | closedir(evt_dir); |
89812fc8 | 419 | return ret; |
bcd3279f FW |
420 | } |
421 | ||
c5cd8ac0 | 422 | static int add_tracepoint_event(struct list_head *list, int *idx, |
f35488f9 JO |
423 | char *sys_name, char *evt_name) |
424 | { | |
425 | return strpbrk(evt_name, "*?") ? | |
426 | add_tracepoint_multi_event(list, idx, sys_name, evt_name) : | |
427 | add_tracepoint(list, idx, sys_name, evt_name); | |
428 | } | |
429 | ||
c5cd8ac0 | 430 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
f35488f9 JO |
431 | char *sys_name, char *evt_name) |
432 | { | |
433 | struct dirent *events_ent; | |
434 | DIR *events_dir; | |
435 | int ret = 0; | |
436 | ||
437 | events_dir = opendir(tracing_events_path); | |
438 | if (!events_dir) { | |
439 | perror("Can't open event dir"); | |
440 | return -1; | |
441 | } | |
442 | ||
443 | while (!ret && (events_ent = readdir(events_dir))) { | |
444 | if (!strcmp(events_ent->d_name, ".") | |
445 | || !strcmp(events_ent->d_name, "..") | |
446 | || !strcmp(events_ent->d_name, "enable") | |
447 | || !strcmp(events_ent->d_name, "header_event") | |
448 | || !strcmp(events_ent->d_name, "header_page")) | |
449 | continue; | |
450 | ||
451 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
452 | continue; | |
453 | ||
454 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
455 | evt_name); | |
456 | } | |
457 | ||
458 | closedir(events_dir); | |
459 | return ret; | |
460 | } | |
461 | ||
c5cd8ac0 | 462 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
89812fc8 | 463 | char *sys, char *event) |
f6bdafef | 464 | { |
89812fc8 | 465 | int ret; |
f6bdafef | 466 | |
89812fc8 JO |
467 | ret = debugfs_valid_mountpoint(tracing_events_path); |
468 | if (ret) | |
469 | return ret; | |
f6bdafef | 470 | |
f35488f9 JO |
471 | if (strpbrk(sys, "*?")) |
472 | return add_tracepoint_multi_sys(list, idx, sys, event); | |
473 | else | |
474 | return add_tracepoint_event(list, idx, sys, event); | |
f6bdafef JB |
475 | } |
476 | ||
89812fc8 JO |
477 | static int |
478 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
479 | { |
480 | int i; | |
481 | ||
482 | for (i = 0; i < 3; i++) { | |
89812fc8 | 483 | if (!type || !type[i]) |
1b290d67 FW |
484 | break; |
485 | ||
7582732f JO |
486 | #define CHECK_SET_TYPE(bit) \ |
487 | do { \ | |
488 | if (attr->bp_type & bit) \ | |
489 | return -EINVAL; \ | |
490 | else \ | |
491 | attr->bp_type |= bit; \ | |
492 | } while (0) | |
493 | ||
1b290d67 FW |
494 | switch (type[i]) { |
495 | case 'r': | |
7582732f | 496 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
497 | break; |
498 | case 'w': | |
7582732f | 499 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
500 | break; |
501 | case 'x': | |
7582732f | 502 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
503 | break; |
504 | default: | |
89812fc8 | 505 | return -EINVAL; |
1b290d67 FW |
506 | } |
507 | } | |
89812fc8 | 508 | |
7582732f JO |
509 | #undef CHECK_SET_TYPE |
510 | ||
1b290d67 FW |
511 | if (!attr->bp_type) /* Default */ |
512 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
513 | ||
89812fc8 | 514 | return 0; |
1b290d67 FW |
515 | } |
516 | ||
c5cd8ac0 | 517 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
89812fc8 | 518 | void *ptr, char *type) |
1b290d67 | 519 | { |
89812fc8 | 520 | struct perf_event_attr attr; |
1b290d67 | 521 | |
89812fc8 | 522 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 523 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 524 | |
89812fc8 JO |
525 | if (parse_breakpoint_type(type, &attr)) |
526 | return -EINVAL; | |
1b290d67 | 527 | |
aa59a485 FW |
528 | /* |
529 | * We should find a nice way to override the access length | |
530 | * Provide some defaults for now | |
531 | */ | |
89812fc8 JO |
532 | if (attr.bp_type == HW_BREAKPOINT_X) |
533 | attr.bp_len = sizeof(long); | |
aa59a485 | 534 | else |
89812fc8 | 535 | attr.bp_len = HW_BREAKPOINT_LEN_4; |
61c45981 | 536 | |
89812fc8 | 537 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 538 | attr.sample_period = 1; |
b908debd | 539 | |
287e74aa | 540 | return add_event(list, idx, &attr, NULL); |
74d5b588 JSR |
541 | } |
542 | ||
8f707d84 | 543 | static int config_term(struct perf_event_attr *attr, |
6cee6cd3 | 544 | struct parse_events_term *term) |
8f707d84 | 545 | { |
16fa7e82 JO |
546 | #define CHECK_TYPE_VAL(type) \ |
547 | do { \ | |
548 | if (PARSE_EVENTS__TERM_TYPE_ ## type != term->type_val) \ | |
549 | return -EINVAL; \ | |
550 | } while (0) | |
551 | ||
552 | switch (term->type_term) { | |
8f707d84 | 553 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 554 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
555 | attr->config = term->val.num; |
556 | break; | |
557 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 558 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
559 | attr->config1 = term->val.num; |
560 | break; | |
561 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 562 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
563 | attr->config2 = term->val.num; |
564 | break; | |
565 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 566 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
567 | attr->sample_period = term->val.num; |
568 | break; | |
569 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: | |
570 | /* | |
571 | * TODO uncomment when the field is available | |
572 | * attr->branch_sample_type = term->val.num; | |
573 | */ | |
574 | break; | |
6b5fc39b JO |
575 | case PARSE_EVENTS__TERM_TYPE_NAME: |
576 | CHECK_TYPE_VAL(STR); | |
577 | break; | |
8f707d84 JO |
578 | default: |
579 | return -EINVAL; | |
580 | } | |
16fa7e82 | 581 | |
8f707d84 | 582 | return 0; |
16fa7e82 | 583 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
584 | } |
585 | ||
586 | static int config_attr(struct perf_event_attr *attr, | |
587 | struct list_head *head, int fail) | |
588 | { | |
6cee6cd3 | 589 | struct parse_events_term *term; |
8f707d84 JO |
590 | |
591 | list_for_each_entry(term, head, list) | |
592 | if (config_term(attr, term) && fail) | |
593 | return -EINVAL; | |
594 | ||
595 | return 0; | |
596 | } | |
597 | ||
c5cd8ac0 | 598 | int parse_events_add_numeric(struct list_head *list, int *idx, |
b527bab5 | 599 | u32 type, u64 config, |
8f707d84 | 600 | struct list_head *head_config) |
8ad8db37 | 601 | { |
89812fc8 | 602 | struct perf_event_attr attr; |
61c45981 | 603 | |
89812fc8 JO |
604 | memset(&attr, 0, sizeof(attr)); |
605 | attr.type = type; | |
606 | attr.config = config; | |
8f707d84 JO |
607 | |
608 | if (head_config && | |
609 | config_attr(&attr, head_config, 1)) | |
610 | return -EINVAL; | |
611 | ||
9db1763c | 612 | return add_event(list, idx, &attr, NULL); |
61c45981 | 613 | } |
8ad8db37 | 614 | |
6cee6cd3 | 615 | static int parse_events__is_name_term(struct parse_events_term *term) |
6b5fc39b JO |
616 | { |
617 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
618 | } | |
619 | ||
9db1763c | 620 | static char *pmu_event_name(struct list_head *head_terms) |
6b5fc39b | 621 | { |
6cee6cd3 | 622 | struct parse_events_term *term; |
6b5fc39b JO |
623 | |
624 | list_for_each_entry(term, head_terms, list) | |
625 | if (parse_events__is_name_term(term)) | |
626 | return term->val.str; | |
627 | ||
9db1763c | 628 | return NULL; |
6b5fc39b JO |
629 | } |
630 | ||
c5cd8ac0 | 631 | int parse_events_add_pmu(struct list_head *list, int *idx, |
5f537a26 JO |
632 | char *name, struct list_head *head_config) |
633 | { | |
634 | struct perf_event_attr attr; | |
635 | struct perf_pmu *pmu; | |
636 | ||
637 | pmu = perf_pmu__find(name); | |
638 | if (!pmu) | |
639 | return -EINVAL; | |
640 | ||
641 | memset(&attr, 0, sizeof(attr)); | |
642 | ||
a6146d50 ZY |
643 | if (perf_pmu__check_alias(pmu, head_config)) |
644 | return -EINVAL; | |
645 | ||
5f537a26 JO |
646 | /* |
647 | * Configure hardcoded terms first, no need to check | |
648 | * return value when called with fail == 0 ;) | |
649 | */ | |
650 | config_attr(&attr, head_config, 0); | |
651 | ||
652 | if (perf_pmu__config(pmu, &attr, head_config)) | |
653 | return -EINVAL; | |
654 | ||
7ae92e74 YZ |
655 | return __add_event(list, idx, &attr, pmu_event_name(head_config), |
656 | pmu->cpus); | |
5f537a26 JO |
657 | } |
658 | ||
6a4bb04c JO |
659 | int parse_events__modifier_group(struct list_head *list, |
660 | char *event_mod) | |
89efb029 | 661 | { |
6a4bb04c JO |
662 | return parse_events__modifier_event(list, event_mod, true); |
663 | } | |
664 | ||
63dab225 | 665 | void parse_events__set_leader(char *name, struct list_head *list) |
6a4bb04c JO |
666 | { |
667 | struct perf_evsel *leader; | |
668 | ||
63dab225 ACM |
669 | __perf_evlist__set_leader(list); |
670 | leader = list_entry(list->next, struct perf_evsel, node); | |
6a4bb04c | 671 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
672 | } |
673 | ||
c5cd8ac0 | 674 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
675 | void parse_events_update_lists(struct list_head *list_event, |
676 | struct list_head *list_all) | |
677 | { | |
678 | /* | |
679 | * Called for single event definition. Update the | |
89efb029 | 680 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
681 | * list, for next event definition. |
682 | */ | |
683 | list_splice_tail(list_event, list_all); | |
b847cbdc | 684 | free(list_event); |
5d7be90e JO |
685 | } |
686 | ||
f5b1135b JO |
687 | struct event_modifier { |
688 | int eu; | |
689 | int ek; | |
690 | int eh; | |
691 | int eH; | |
692 | int eG; | |
693 | int precise; | |
694 | int exclude_GH; | |
3c176311 | 695 | int sample_read; |
e9a7c414 | 696 | int pinned; |
f5b1135b JO |
697 | }; |
698 | ||
699 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
700 | struct perf_evsel *evsel) | |
61c45981 | 701 | { |
f5b1135b JO |
702 | int eu = evsel ? evsel->attr.exclude_user : 0; |
703 | int ek = evsel ? evsel->attr.exclude_kernel : 0; | |
704 | int eh = evsel ? evsel->attr.exclude_hv : 0; | |
705 | int eH = evsel ? evsel->attr.exclude_host : 0; | |
706 | int eG = evsel ? evsel->attr.exclude_guest : 0; | |
707 | int precise = evsel ? evsel->attr.precise_ip : 0; | |
3c176311 | 708 | int sample_read = 0; |
e9a7c414 | 709 | int pinned = evsel ? evsel->attr.pinned : 0; |
a21ca2ca | 710 | |
f5b1135b JO |
711 | int exclude = eu | ek | eh; |
712 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
713 | ||
f5b1135b | 714 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 715 | |
61c45981 | 716 | while (*str) { |
ab608344 PZ |
717 | if (*str == 'u') { |
718 | if (!exclude) | |
719 | exclude = eu = ek = eh = 1; | |
61c45981 | 720 | eu = 0; |
ab608344 PZ |
721 | } else if (*str == 'k') { |
722 | if (!exclude) | |
723 | exclude = eu = ek = eh = 1; | |
61c45981 | 724 | ek = 0; |
ab608344 PZ |
725 | } else if (*str == 'h') { |
726 | if (!exclude) | |
727 | exclude = eu = ek = eh = 1; | |
61c45981 | 728 | eh = 0; |
99320cc8 JR |
729 | } else if (*str == 'G') { |
730 | if (!exclude_GH) | |
731 | exclude_GH = eG = eH = 1; | |
732 | eG = 0; | |
733 | } else if (*str == 'H') { | |
734 | if (!exclude_GH) | |
735 | exclude_GH = eG = eH = 1; | |
736 | eH = 0; | |
ab608344 PZ |
737 | } else if (*str == 'p') { |
738 | precise++; | |
1342798c DA |
739 | /* use of precise requires exclude_guest */ |
740 | if (!exclude_GH) | |
741 | eG = 1; | |
3c176311 JO |
742 | } else if (*str == 'S') { |
743 | sample_read = 1; | |
e9a7c414 ME |
744 | } else if (*str == 'D') { |
745 | pinned = 1; | |
ab608344 | 746 | } else |
61c45981 | 747 | break; |
ab608344 | 748 | |
61c45981 | 749 | ++str; |
5242519b | 750 | } |
ceb53fbf | 751 | |
89812fc8 JO |
752 | /* |
753 | * precise ip: | |
754 | * | |
755 | * 0 - SAMPLE_IP can have arbitrary skid | |
756 | * 1 - SAMPLE_IP must have constant skid | |
757 | * 2 - SAMPLE_IP requested to have 0 skid | |
758 | * 3 - SAMPLE_IP must have 0 skid | |
759 | * | |
760 | * See also PERF_RECORD_MISC_EXACT_IP | |
761 | */ | |
762 | if (precise > 3) | |
763 | return -EINVAL; | |
ceb53fbf | 764 | |
f5b1135b JO |
765 | mod->eu = eu; |
766 | mod->ek = ek; | |
767 | mod->eh = eh; | |
768 | mod->eH = eH; | |
769 | mod->eG = eG; | |
770 | mod->precise = precise; | |
771 | mod->exclude_GH = exclude_GH; | |
3c176311 | 772 | mod->sample_read = sample_read; |
e9a7c414 ME |
773 | mod->pinned = pinned; |
774 | ||
f5b1135b JO |
775 | return 0; |
776 | } | |
777 | ||
534123f4 JO |
778 | /* |
779 | * Basic modifier sanity check to validate it contains only one | |
780 | * instance of any modifier (apart from 'p') present. | |
781 | */ | |
782 | static int check_modifier(char *str) | |
783 | { | |
784 | char *p = str; | |
785 | ||
786 | /* The sizeof includes 0 byte as well. */ | |
e9a7c414 | 787 | if (strlen(str) > (sizeof("ukhGHpppSD") - 1)) |
534123f4 JO |
788 | return -1; |
789 | ||
790 | while (*p) { | |
791 | if (*p != 'p' && strchr(p + 1, *p)) | |
792 | return -1; | |
793 | p++; | |
794 | } | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
f5b1135b JO |
799 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
800 | { | |
801 | struct perf_evsel *evsel; | |
802 | struct event_modifier mod; | |
803 | ||
804 | if (str == NULL) | |
805 | return 0; | |
806 | ||
534123f4 JO |
807 | if (check_modifier(str)) |
808 | return -EINVAL; | |
809 | ||
f5b1135b JO |
810 | if (!add && get_event_modifier(&mod, str, NULL)) |
811 | return -EINVAL; | |
812 | ||
89812fc8 | 813 | list_for_each_entry(evsel, list, node) { |
f5b1135b JO |
814 | |
815 | if (add && get_event_modifier(&mod, str, evsel)) | |
816 | return -EINVAL; | |
817 | ||
818 | evsel->attr.exclude_user = mod.eu; | |
819 | evsel->attr.exclude_kernel = mod.ek; | |
820 | evsel->attr.exclude_hv = mod.eh; | |
821 | evsel->attr.precise_ip = mod.precise; | |
822 | evsel->attr.exclude_host = mod.eH; | |
823 | evsel->attr.exclude_guest = mod.eG; | |
824 | evsel->exclude_GH = mod.exclude_GH; | |
3c176311 | 825 | evsel->sample_read = mod.sample_read; |
e9a7c414 ME |
826 | |
827 | if (perf_evsel__is_group_leader(evsel)) | |
828 | evsel->attr.pinned = mod.pinned; | |
89812fc8 | 829 | } |
ceb53fbf | 830 | |
61c45981 PM |
831 | return 0; |
832 | } | |
8ad8db37 | 833 | |
ac2ba9f3 RR |
834 | int parse_events_name(struct list_head *list, char *name) |
835 | { | |
836 | struct perf_evsel *evsel; | |
837 | ||
838 | list_for_each_entry(evsel, list, node) { | |
839 | if (!evsel->name) | |
840 | evsel->name = strdup(name); | |
841 | } | |
842 | ||
843 | return 0; | |
844 | } | |
845 | ||
50e200f0 AK |
846 | static int parse_events__scanner(const char *str, void *data, int start_token); |
847 | ||
848 | static int parse_events_fixup(int ret, const char *str, void *data, | |
849 | int start_token) | |
850 | { | |
851 | char *o = strdup(str); | |
852 | char *s = NULL; | |
853 | char *t = o; | |
854 | char *p; | |
855 | int len = 0; | |
856 | ||
857 | if (!o) | |
858 | return ret; | |
859 | while ((p = strsep(&t, ",")) != NULL) { | |
860 | if (s) | |
861 | str_append(&s, &len, ","); | |
862 | str_append(&s, &len, "cpu/"); | |
863 | str_append(&s, &len, p); | |
864 | str_append(&s, &len, "/"); | |
865 | } | |
866 | free(o); | |
867 | if (!s) | |
868 | return -ENOMEM; | |
869 | return parse_events__scanner(s, data, start_token); | |
870 | } | |
871 | ||
90e2b22d | 872 | static int parse_events__scanner(const char *str, void *data, int start_token) |
61c45981 | 873 | { |
89812fc8 | 874 | YY_BUFFER_STATE buffer; |
ac20de6f | 875 | void *scanner; |
46010ab2 | 876 | int ret; |
bcd3279f | 877 | |
90e2b22d | 878 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
879 | if (ret) |
880 | return ret; | |
881 | ||
882 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 883 | |
82ba1f2f JO |
884 | #ifdef PARSER_DEBUG |
885 | parse_events_debug = 1; | |
886 | #endif | |
ac20de6f ZY |
887 | ret = parse_events_parse(data, scanner); |
888 | ||
889 | parse_events__flush_buffer(buffer, scanner); | |
890 | parse_events__delete_buffer(buffer, scanner); | |
891 | parse_events_lex_destroy(scanner); | |
50e200f0 AK |
892 | if (ret && !strchr(str, '/')) |
893 | ret = parse_events_fixup(ret, str, data, start_token); | |
ac20de6f ZY |
894 | return ret; |
895 | } | |
bcd3279f | 896 | |
90e2b22d JO |
897 | /* |
898 | * parse event config string, return a list of event terms. | |
899 | */ | |
900 | int parse_events_terms(struct list_head *terms, const char *str) | |
901 | { | |
23b6339b | 902 | struct parse_events_terms data = { |
90e2b22d JO |
903 | .terms = NULL, |
904 | }; | |
905 | int ret; | |
906 | ||
907 | ret = parse_events__scanner(str, &data, PE_START_TERMS); | |
908 | if (!ret) { | |
909 | list_splice(data.terms, terms); | |
910 | free(data.terms); | |
911 | return 0; | |
912 | } | |
913 | ||
b2c34fde AH |
914 | if (data.terms) |
915 | parse_events__free_terms(data.terms); | |
90e2b22d JO |
916 | return ret; |
917 | } | |
918 | ||
d8f7bbc9 | 919 | int parse_events(struct perf_evlist *evlist, const char *str) |
ac20de6f | 920 | { |
23b6339b | 921 | struct parse_events_evlist data = { |
ac20de6f ZY |
922 | .list = LIST_HEAD_INIT(data.list), |
923 | .idx = evlist->nr_entries, | |
924 | }; | |
925 | int ret; | |
bcd3279f | 926 | |
90e2b22d | 927 | ret = parse_events__scanner(str, &data, PE_START_EVENTS); |
89812fc8 | 928 | if (!ret) { |
46010ab2 JO |
929 | int entries = data.idx - evlist->nr_entries; |
930 | perf_evlist__splice_list_tail(evlist, &data.list, entries); | |
97f63e4a | 931 | evlist->nr_groups += data.nr_groups; |
89812fc8 JO |
932 | return 0; |
933 | } | |
bcd3279f | 934 | |
5d7be90e JO |
935 | /* |
936 | * There are 2 users - builtin-record and builtin-test objects. | |
937 | * Both call perf_evlist__delete in case of error, so we dont | |
938 | * need to bother. | |
939 | */ | |
bcd3279f | 940 | return ret; |
8ad8db37 IM |
941 | } |
942 | ||
f120f9d5 | 943 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 944 | int unset __maybe_unused) |
f120f9d5 JO |
945 | { |
946 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
d8f7bbc9 | 947 | int ret = parse_events(evlist, str); |
9175ce1f AK |
948 | |
949 | if (ret) { | |
950 | fprintf(stderr, "invalid or unsupported event: '%s'\n", str); | |
951 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); | |
952 | } | |
953 | return ret; | |
f120f9d5 JO |
954 | } |
955 | ||
361c99a6 | 956 | int parse_filter(const struct option *opt, const char *str, |
1d037ca1 | 957 | int unset __maybe_unused) |
c171b552 | 958 | { |
361c99a6 | 959 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; |
69aad6f1 | 960 | struct perf_evsel *last = NULL; |
c171b552 | 961 | |
361c99a6 | 962 | if (evlist->nr_entries > 0) |
0c21f736 | 963 | last = perf_evlist__last(evlist); |
69aad6f1 ACM |
964 | |
965 | if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) { | |
c171b552 LZ |
966 | fprintf(stderr, |
967 | "-F option should follow a -e tracepoint option\n"); | |
968 | return -1; | |
969 | } | |
970 | ||
69aad6f1 ACM |
971 | last->filter = strdup(str); |
972 | if (last->filter == NULL) { | |
c171b552 LZ |
973 | fprintf(stderr, "not enough memory to hold filter string\n"); |
974 | return -1; | |
975 | } | |
c171b552 LZ |
976 | |
977 | return 0; | |
978 | } | |
979 | ||
86847b62 | 980 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
981 | "Hardware event", |
982 | "Software event", | |
983 | "Tracepoint event", | |
984 | "Hardware cache event", | |
41bdcb23 LW |
985 | "Raw hardware event descriptor", |
986 | "Hardware breakpoint", | |
86847b62 TG |
987 | }; |
988 | ||
f6bdafef JB |
989 | /* |
990 | * Print the events from <debugfs_mount_point>/tracing/events | |
991 | */ | |
992 | ||
a3277d2d FW |
993 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
994 | bool name_only) | |
f6bdafef JB |
995 | { |
996 | DIR *sys_dir, *evt_dir; | |
997 | struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; | |
f6bdafef | 998 | char evt_path[MAXPATHLEN]; |
725b1368 | 999 | char dir_path[MAXPATHLEN]; |
f6bdafef | 1000 | |
f11cfc6f PE |
1001 | if (debugfs_valid_mountpoint(tracing_events_path)) { |
1002 | printf(" [ Tracepoints not available: %s ]\n", strerror(errno)); | |
f6bdafef | 1003 | return; |
f11cfc6f | 1004 | } |
f6bdafef | 1005 | |
ebf294bf | 1006 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 1007 | if (!sys_dir) |
725b1368 | 1008 | return; |
6b58e7f1 UD |
1009 | |
1010 | for_each_subsystem(sys_dir, sys_dirent, sys_next) { | |
668b8788 ACM |
1011 | if (subsys_glob != NULL && |
1012 | !strglobmatch(sys_dirent.d_name, subsys_glob)) | |
1013 | continue; | |
725b1368 | 1014 | |
ebf294bf | 1015 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
725b1368 ED |
1016 | sys_dirent.d_name); |
1017 | evt_dir = opendir(dir_path); | |
1018 | if (!evt_dir) | |
6b58e7f1 | 1019 | continue; |
725b1368 | 1020 | |
6b58e7f1 | 1021 | for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { |
668b8788 ACM |
1022 | if (event_glob != NULL && |
1023 | !strglobmatch(evt_dirent.d_name, event_glob)) | |
1024 | continue; | |
1025 | ||
a3277d2d FW |
1026 | if (name_only) { |
1027 | printf("%s:%s ", sys_dirent.d_name, evt_dirent.d_name); | |
1028 | continue; | |
1029 | } | |
1030 | ||
f6bdafef JB |
1031 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
1032 | sys_dirent.d_name, evt_dirent.d_name); | |
947b4ad1 | 1033 | printf(" %-50s [%s]\n", evt_path, |
41bdcb23 | 1034 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); |
f6bdafef JB |
1035 | } |
1036 | closedir(evt_dir); | |
1037 | } | |
f6bdafef JB |
1038 | closedir(sys_dir); |
1039 | } | |
1040 | ||
20c457b8 TR |
1041 | /* |
1042 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
1043 | */ | |
1044 | ||
1045 | int is_valid_tracepoint(const char *event_string) | |
1046 | { | |
1047 | DIR *sys_dir, *evt_dir; | |
1048 | struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; | |
1049 | char evt_path[MAXPATHLEN]; | |
1050 | char dir_path[MAXPATHLEN]; | |
1051 | ||
ebf294bf | 1052 | if (debugfs_valid_mountpoint(tracing_events_path)) |
20c457b8 TR |
1053 | return 0; |
1054 | ||
ebf294bf | 1055 | sys_dir = opendir(tracing_events_path); |
20c457b8 TR |
1056 | if (!sys_dir) |
1057 | return 0; | |
1058 | ||
1059 | for_each_subsystem(sys_dir, sys_dirent, sys_next) { | |
1060 | ||
ebf294bf | 1061 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
20c457b8 TR |
1062 | sys_dirent.d_name); |
1063 | evt_dir = opendir(dir_path); | |
1064 | if (!evt_dir) | |
1065 | continue; | |
1066 | ||
1067 | for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { | |
1068 | snprintf(evt_path, MAXPATHLEN, "%s:%s", | |
1069 | sys_dirent.d_name, evt_dirent.d_name); | |
1070 | if (!strcmp(evt_path, event_string)) { | |
1071 | closedir(evt_dir); | |
1072 | closedir(sys_dir); | |
1073 | return 1; | |
1074 | } | |
1075 | } | |
1076 | closedir(evt_dir); | |
1077 | } | |
1078 | closedir(sys_dir); | |
1079 | return 0; | |
1080 | } | |
1081 | ||
b41f1cec NK |
1082 | static bool is_event_supported(u8 type, unsigned config) |
1083 | { | |
1084 | bool ret = true; | |
1085 | struct perf_evsel *evsel; | |
1086 | struct perf_event_attr attr = { | |
1087 | .type = type, | |
1088 | .config = config, | |
1089 | .disabled = 1, | |
1090 | .exclude_kernel = 1, | |
1091 | }; | |
1092 | struct { | |
1093 | struct thread_map map; | |
1094 | int threads[1]; | |
1095 | } tmap = { | |
1096 | .map.nr = 1, | |
1097 | .threads = { 0 }, | |
1098 | }; | |
1099 | ||
1100 | evsel = perf_evsel__new(&attr, 0); | |
1101 | if (evsel) { | |
1102 | ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0; | |
1103 | perf_evsel__delete(evsel); | |
1104 | } | |
1105 | ||
1106 | return ret; | |
1107 | } | |
1108 | ||
1dc12760 JO |
1109 | static void __print_events_type(u8 type, struct event_symbol *syms, |
1110 | unsigned max) | |
668b8788 | 1111 | { |
668b8788 | 1112 | char name[64]; |
1dc12760 | 1113 | unsigned i; |
668b8788 | 1114 | |
1dc12760 | 1115 | for (i = 0; i < max ; i++, syms++) { |
b41f1cec NK |
1116 | if (!is_event_supported(type, i)) |
1117 | continue; | |
1118 | ||
668b8788 ACM |
1119 | if (strlen(syms->alias)) |
1120 | snprintf(name, sizeof(name), "%s OR %s", | |
1121 | syms->symbol, syms->alias); | |
1122 | else | |
1123 | snprintf(name, sizeof(name), "%s", syms->symbol); | |
1124 | ||
b41f1cec | 1125 | printf(" %-50s [%s]\n", name, event_type_descriptors[type]); |
668b8788 ACM |
1126 | } |
1127 | } | |
1128 | ||
1dc12760 JO |
1129 | void print_events_type(u8 type) |
1130 | { | |
1131 | if (type == PERF_TYPE_SOFTWARE) | |
1132 | __print_events_type(type, event_symbols_sw, PERF_COUNT_SW_MAX); | |
1133 | else | |
1134 | __print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX); | |
1135 | } | |
1136 | ||
a3277d2d | 1137 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 ACM |
1138 | { |
1139 | unsigned int type, op, i, printed = 0; | |
0b668bc9 | 1140 | char name[64]; |
668b8788 ACM |
1141 | |
1142 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
1143 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
1144 | /* skip invalid cache type */ | |
0b668bc9 | 1145 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
1146 | continue; |
1147 | ||
1148 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
1149 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
1150 | name, sizeof(name)); | |
947b4ad1 | 1151 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
1152 | continue; |
1153 | ||
b41f1cec NK |
1154 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
1155 | type | (op << 8) | (i << 16))) | |
1156 | continue; | |
1157 | ||
a3277d2d FW |
1158 | if (name_only) |
1159 | printf("%s ", name); | |
1160 | else | |
1161 | printf(" %-50s [%s]\n", name, | |
1162 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
668b8788 ACM |
1163 | ++printed; |
1164 | } | |
1165 | } | |
1166 | } | |
1167 | ||
dc098b35 AK |
1168 | if (printed) |
1169 | printf("\n"); | |
668b8788 ACM |
1170 | return printed; |
1171 | } | |
1172 | ||
1dc12760 | 1173 | static void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
1174 | struct event_symbol *syms, unsigned max, |
1175 | bool name_only) | |
8ad8db37 | 1176 | { |
1dc12760 | 1177 | unsigned i, printed = 0; |
947b4ad1 | 1178 | char name[MAX_NAME_LEN]; |
8ad8db37 | 1179 | |
1dc12760 | 1180 | for (i = 0; i < max; i++, syms++) { |
668b8788 ACM |
1181 | |
1182 | if (event_glob != NULL && | |
1183 | !(strglobmatch(syms->symbol, event_glob) || | |
1184 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
1185 | continue; | |
8ad8db37 | 1186 | |
b41f1cec NK |
1187 | if (!is_event_supported(type, i)) |
1188 | continue; | |
1189 | ||
a3277d2d FW |
1190 | if (name_only) { |
1191 | printf("%s ", syms->symbol); | |
1192 | continue; | |
1193 | } | |
1194 | ||
74d5b588 | 1195 | if (strlen(syms->alias)) |
947b4ad1 | 1196 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 1197 | else |
947b4ad1 | 1198 | strncpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 1199 | |
1dc12760 JO |
1200 | printf(" %-50s [%s]\n", name, event_type_descriptors[type]); |
1201 | ||
1202 | printed++; | |
8ad8db37 IM |
1203 | } |
1204 | ||
1dc12760 | 1205 | if (printed) |
668b8788 | 1206 | printf("\n"); |
1dc12760 JO |
1207 | } |
1208 | ||
1209 | /* | |
1210 | * Print the help text for the event symbols: | |
1211 | */ | |
a3277d2d | 1212 | void print_events(const char *event_glob, bool name_only) |
1dc12760 | 1213 | { |
a3277d2d FW |
1214 | if (!name_only) { |
1215 | printf("\n"); | |
1216 | printf("List of pre-defined events (to be used in -e):\n"); | |
1217 | } | |
1dc12760 JO |
1218 | |
1219 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, | |
a3277d2d | 1220 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
1221 | |
1222 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 1223 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
1dc12760 | 1224 | |
a3277d2d | 1225 | print_hwcache_events(event_glob, name_only); |
668b8788 | 1226 | |
dc098b35 AK |
1227 | print_pmu_events(event_glob, name_only); |
1228 | ||
668b8788 ACM |
1229 | if (event_glob != NULL) |
1230 | return; | |
73c24cb8 | 1231 | |
a3277d2d | 1232 | if (!name_only) { |
a3277d2d FW |
1233 | printf(" %-50s [%s]\n", |
1234 | "rNNN", | |
1235 | event_type_descriptors[PERF_TYPE_RAW]); | |
1236 | printf(" %-50s [%s]\n", | |
1237 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
1238 | event_type_descriptors[PERF_TYPE_RAW]); | |
af3df2cf | 1239 | printf(" (see 'man perf-list' on how to encode it)\n"); |
a3277d2d FW |
1240 | printf("\n"); |
1241 | ||
1242 | printf(" %-50s [%s]\n", | |
1243 | "mem:<addr>[:access]", | |
41bdcb23 | 1244 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
a3277d2d FW |
1245 | printf("\n"); |
1246 | } | |
1b290d67 | 1247 | |
a3277d2d | 1248 | print_tracepoint_events(NULL, NULL, name_only); |
8ad8db37 | 1249 | } |
8f707d84 | 1250 | |
6cee6cd3 | 1251 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 1252 | { |
16fa7e82 | 1253 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
1254 | } |
1255 | ||
6cee6cd3 | 1256 | static int new_term(struct parse_events_term **_term, int type_val, |
16fa7e82 | 1257 | int type_term, char *config, |
b527bab5 | 1258 | char *str, u64 num) |
8f707d84 | 1259 | { |
6cee6cd3 | 1260 | struct parse_events_term *term; |
8f707d84 JO |
1261 | |
1262 | term = zalloc(sizeof(*term)); | |
1263 | if (!term) | |
1264 | return -ENOMEM; | |
1265 | ||
1266 | INIT_LIST_HEAD(&term->list); | |
16fa7e82 JO |
1267 | term->type_val = type_val; |
1268 | term->type_term = type_term; | |
8f707d84 JO |
1269 | term->config = config; |
1270 | ||
16fa7e82 | 1271 | switch (type_val) { |
8f707d84 JO |
1272 | case PARSE_EVENTS__TERM_TYPE_NUM: |
1273 | term->val.num = num; | |
1274 | break; | |
1275 | case PARSE_EVENTS__TERM_TYPE_STR: | |
1276 | term->val.str = str; | |
1277 | break; | |
1278 | default: | |
4be8be6b | 1279 | free(term); |
8f707d84 JO |
1280 | return -EINVAL; |
1281 | } | |
1282 | ||
1283 | *_term = term; | |
1284 | return 0; | |
1285 | } | |
1286 | ||
6cee6cd3 | 1287 | int parse_events_term__num(struct parse_events_term **term, |
b527bab5 | 1288 | int type_term, char *config, u64 num) |
16fa7e82 JO |
1289 | { |
1290 | return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term, | |
1291 | config, NULL, num); | |
1292 | } | |
1293 | ||
6cee6cd3 | 1294 | int parse_events_term__str(struct parse_events_term **term, |
16fa7e82 JO |
1295 | int type_term, char *config, char *str) |
1296 | { | |
1297 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term, | |
1298 | config, str, 0); | |
1299 | } | |
1300 | ||
6cee6cd3 | 1301 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
1302 | char *config, unsigned idx) |
1303 | { | |
1304 | struct event_symbol *sym; | |
1305 | ||
1306 | BUG_ON(idx >= PERF_COUNT_HW_MAX); | |
1307 | sym = &event_symbols_hw[idx]; | |
1308 | ||
1309 | if (config) | |
1310 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, | |
1311 | PARSE_EVENTS__TERM_TYPE_USER, config, | |
1312 | (char *) sym->symbol, 0); | |
1313 | else | |
1314 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, | |
1315 | PARSE_EVENTS__TERM_TYPE_USER, | |
1316 | (char *) "event", (char *) sym->symbol, 0); | |
1317 | } | |
1318 | ||
6cee6cd3 ACM |
1319 | int parse_events_term__clone(struct parse_events_term **new, |
1320 | struct parse_events_term *term) | |
a6146d50 ZY |
1321 | { |
1322 | return new_term(new, term->type_val, term->type_term, term->config, | |
1323 | term->val.str, term->val.num); | |
1324 | } | |
1325 | ||
8f707d84 JO |
1326 | void parse_events__free_terms(struct list_head *terms) |
1327 | { | |
6cee6cd3 | 1328 | struct parse_events_term *term, *h; |
8f707d84 JO |
1329 | |
1330 | list_for_each_entry_safe(term, h, terms, list) | |
1331 | free(term); | |
8f707d84 | 1332 | } |