Commit | Line | Data |
---|---|---|
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" |
6e81c74c | 13 | #include "debug.h" |
553873e1 | 14 | #include <api/fs/debugfs.h> |
ac20de6f | 15 | #include "parse-events-bison.h" |
90e2b22d | 16 | #define YY_EXTRA_TYPE int |
89812fc8 | 17 | #include "parse-events-flex.h" |
5f537a26 | 18 | #include "pmu.h" |
b41f1cec | 19 | #include "thread_map.h" |
89812fc8 JO |
20 | |
21 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 22 | |
8ad8db37 | 23 | struct event_symbol { |
83a0944f IM |
24 | const char *symbol; |
25 | const char *alias; | |
8ad8db37 IM |
26 | }; |
27 | ||
82ba1f2f JO |
28 | #ifdef PARSER_DEBUG |
29 | extern int parse_events_debug; | |
30 | #endif | |
ac20de6f | 31 | int parse_events_parse(void *data, void *scanner); |
bcd3279f | 32 | |
1dc12760 JO |
33 | static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
34 | [PERF_COUNT_HW_CPU_CYCLES] = { | |
35 | .symbol = "cpu-cycles", | |
36 | .alias = "cycles", | |
37 | }, | |
38 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
39 | .symbol = "instructions", | |
40 | .alias = "", | |
41 | }, | |
42 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
43 | .symbol = "cache-references", | |
44 | .alias = "", | |
45 | }, | |
46 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
47 | .symbol = "cache-misses", | |
48 | .alias = "", | |
49 | }, | |
50 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
51 | .symbol = "branch-instructions", | |
52 | .alias = "branches", | |
53 | }, | |
54 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
55 | .symbol = "branch-misses", | |
56 | .alias = "", | |
57 | }, | |
58 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
59 | .symbol = "bus-cycles", | |
60 | .alias = "", | |
61 | }, | |
62 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
63 | .symbol = "stalled-cycles-frontend", | |
64 | .alias = "idle-cycles-frontend", | |
65 | }, | |
66 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
67 | .symbol = "stalled-cycles-backend", | |
68 | .alias = "idle-cycles-backend", | |
69 | }, | |
70 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
71 | .symbol = "ref-cycles", | |
72 | .alias = "", | |
73 | }, | |
74 | }; | |
75 | ||
76 | static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { | |
77 | [PERF_COUNT_SW_CPU_CLOCK] = { | |
78 | .symbol = "cpu-clock", | |
79 | .alias = "", | |
80 | }, | |
81 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
82 | .symbol = "task-clock", | |
83 | .alias = "", | |
84 | }, | |
85 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
86 | .symbol = "page-faults", | |
87 | .alias = "faults", | |
88 | }, | |
89 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
90 | .symbol = "context-switches", | |
91 | .alias = "cs", | |
92 | }, | |
93 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
94 | .symbol = "cpu-migrations", | |
95 | .alias = "migrations", | |
96 | }, | |
97 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
98 | .symbol = "minor-faults", | |
99 | .alias = "", | |
100 | }, | |
101 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
102 | .symbol = "major-faults", | |
103 | .alias = "", | |
104 | }, | |
105 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
106 | .symbol = "alignment-faults", | |
107 | .alias = "", | |
108 | }, | |
109 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
110 | .symbol = "emulation-faults", | |
111 | .alias = "", | |
112 | }, | |
d22d1a2a AH |
113 | [PERF_COUNT_SW_DUMMY] = { |
114 | .symbol = "dummy", | |
115 | .alias = "", | |
116 | }, | |
8ad8db37 IM |
117 | }; |
118 | ||
cdd6c482 IM |
119 | #define __PERF_EVENT_FIELD(config, name) \ |
120 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 121 | |
1fc570ad | 122 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 123 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 124 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 125 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 126 | |
6b58e7f1 | 127 | #define for_each_subsystem(sys_dir, sys_dirent, sys_next) \ |
f6bdafef | 128 | while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \ |
6b58e7f1 | 129 | if (sys_dirent.d_type == DT_DIR && \ |
f6bdafef JB |
130 | (strcmp(sys_dirent.d_name, ".")) && \ |
131 | (strcmp(sys_dirent.d_name, ".."))) | |
132 | ||
ae07b63f PZ |
133 | static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir) |
134 | { | |
135 | char evt_path[MAXPATHLEN]; | |
136 | int fd; | |
137 | ||
ebf294bf | 138 | snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path, |
ae07b63f PZ |
139 | sys_dir->d_name, evt_dir->d_name); |
140 | fd = open(evt_path, O_RDONLY); | |
141 | if (fd < 0) | |
142 | return -EINVAL; | |
143 | close(fd); | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
6b58e7f1 | 148 | #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \ |
f6bdafef | 149 | while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \ |
6b58e7f1 | 150 | if (evt_dirent.d_type == DT_DIR && \ |
f6bdafef | 151 | (strcmp(evt_dirent.d_name, ".")) && \ |
ae07b63f PZ |
152 | (strcmp(evt_dirent.d_name, "..")) && \ |
153 | (!tp_event_has_id(&sys_dirent, &evt_dirent))) | |
f6bdafef | 154 | |
270bbbe8 | 155 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 156 | |
f6bdafef | 157 | |
1ef2ed10 | 158 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 159 | { |
1ef2ed10 | 160 | struct tracepoint_path *path = NULL; |
f6bdafef JB |
161 | DIR *sys_dir, *evt_dir; |
162 | struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; | |
8aa8a7c8 | 163 | char id_buf[24]; |
725b1368 | 164 | int fd; |
f6bdafef JB |
165 | u64 id; |
166 | char evt_path[MAXPATHLEN]; | |
725b1368 | 167 | char dir_path[MAXPATHLEN]; |
f6bdafef | 168 | |
ebf294bf | 169 | if (debugfs_valid_mountpoint(tracing_events_path)) |
1ef2ed10 | 170 | return NULL; |
f6bdafef | 171 | |
ebf294bf | 172 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 173 | if (!sys_dir) |
725b1368 | 174 | return NULL; |
6b58e7f1 UD |
175 | |
176 | for_each_subsystem(sys_dir, sys_dirent, sys_next) { | |
725b1368 | 177 | |
ebf294bf | 178 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
725b1368 ED |
179 | sys_dirent.d_name); |
180 | evt_dir = opendir(dir_path); | |
181 | if (!evt_dir) | |
6b58e7f1 | 182 | continue; |
725b1368 | 183 | |
6b58e7f1 | 184 | for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { |
725b1368 ED |
185 | |
186 | snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, | |
f6bdafef | 187 | evt_dirent.d_name); |
725b1368 | 188 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
189 | if (fd < 0) |
190 | continue; | |
191 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
192 | close(fd); | |
193 | continue; | |
194 | } | |
195 | close(fd); | |
196 | id = atoll(id_buf); | |
197 | if (id == config) { | |
198 | closedir(evt_dir); | |
199 | closedir(sys_dir); | |
59b4caeb | 200 | path = zalloc(sizeof(*path)); |
1ef2ed10 FW |
201 | path->system = malloc(MAX_EVENT_LENGTH); |
202 | if (!path->system) { | |
203 | free(path); | |
204 | return NULL; | |
205 | } | |
206 | path->name = malloc(MAX_EVENT_LENGTH); | |
207 | if (!path->name) { | |
74cf249d | 208 | zfree(&path->system); |
1ef2ed10 FW |
209 | free(path); |
210 | return NULL; | |
211 | } | |
212 | strncpy(path->system, sys_dirent.d_name, | |
213 | MAX_EVENT_LENGTH); | |
214 | strncpy(path->name, evt_dirent.d_name, | |
215 | MAX_EVENT_LENGTH); | |
216 | return path; | |
f6bdafef JB |
217 | } |
218 | } | |
219 | closedir(evt_dir); | |
220 | } | |
221 | ||
f6bdafef | 222 | closedir(sys_dir); |
1ef2ed10 FW |
223 | return NULL; |
224 | } | |
225 | ||
e7c93f09 NK |
226 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
227 | { | |
228 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
229 | char *str = strchr(name, ':'); | |
230 | ||
231 | if (path == NULL || str == NULL) { | |
232 | free(path); | |
233 | return NULL; | |
234 | } | |
235 | ||
236 | path->system = strndup(name, str - name); | |
237 | path->name = strdup(str+1); | |
238 | ||
239 | if (path->system == NULL || path->name == NULL) { | |
74cf249d ACM |
240 | zfree(&path->system); |
241 | zfree(&path->name); | |
e7c93f09 NK |
242 | free(path); |
243 | path = NULL; | |
244 | } | |
245 | ||
246 | return path; | |
247 | } | |
248 | ||
1424dc96 DA |
249 | const char *event_type(int type) |
250 | { | |
251 | switch (type) { | |
252 | case PERF_TYPE_HARDWARE: | |
253 | return "hardware"; | |
254 | ||
255 | case PERF_TYPE_SOFTWARE: | |
256 | return "software"; | |
257 | ||
258 | case PERF_TYPE_TRACEPOINT: | |
259 | return "tracepoint"; | |
260 | ||
261 | case PERF_TYPE_HW_CACHE: | |
262 | return "hardware-cache"; | |
263 | ||
264 | default: | |
265 | break; | |
266 | } | |
267 | ||
268 | return "unknown"; | |
269 | } | |
270 | ||
7ae92e74 YZ |
271 | |
272 | ||
410136f5 SE |
273 | static struct perf_evsel * |
274 | __add_event(struct list_head *list, int *idx, | |
275 | struct perf_event_attr *attr, | |
276 | char *name, struct cpu_map *cpus) | |
89812fc8 JO |
277 | { |
278 | struct perf_evsel *evsel; | |
279 | ||
280 | event_attr_init(attr); | |
281 | ||
ef503831 | 282 | evsel = perf_evsel__new_idx(attr, (*idx)++); |
c5cd8ac0 | 283 | if (!evsel) |
410136f5 | 284 | return NULL; |
89812fc8 | 285 | |
7ae92e74 | 286 | evsel->cpus = cpus; |
9db1763c ACM |
287 | if (name) |
288 | evsel->name = strdup(name); | |
b847cbdc | 289 | list_add_tail(&evsel->node, list); |
410136f5 | 290 | return evsel; |
89812fc8 JO |
291 | } |
292 | ||
c5cd8ac0 | 293 | static int add_event(struct list_head *list, int *idx, |
7ae92e74 YZ |
294 | struct perf_event_attr *attr, char *name) |
295 | { | |
410136f5 | 296 | return __add_event(list, idx, attr, name, NULL) ? 0 : -ENOMEM; |
7ae92e74 YZ |
297 | } |
298 | ||
0b668bc9 | 299 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
300 | { |
301 | int i, j; | |
61c45981 | 302 | int n, longest = -1; |
8326f44d IM |
303 | |
304 | for (i = 0; i < size; i++) { | |
0b668bc9 | 305 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 306 | n = strlen(names[i][j]); |
89812fc8 | 307 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
308 | longest = n; |
309 | } | |
89812fc8 | 310 | if (longest > 0) |
61c45981 | 311 | return i; |
8326f44d IM |
312 | } |
313 | ||
8953645f | 314 | return -1; |
8326f44d IM |
315 | } |
316 | ||
c5cd8ac0 | 317 | int parse_events_add_cache(struct list_head *list, int *idx, |
89812fc8 | 318 | char *type, char *op_result1, char *op_result2) |
8326f44d | 319 | { |
89812fc8 JO |
320 | struct perf_event_attr attr; |
321 | char name[MAX_NAME_LEN]; | |
61c45981 | 322 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
323 | char *op_result[2] = { op_result1, op_result2 }; |
324 | int i, n; | |
8326f44d | 325 | |
8326f44d IM |
326 | /* |
327 | * No fallback - if we cannot get a clear cache type | |
328 | * then bail out: | |
329 | */ | |
0b668bc9 | 330 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 331 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 332 | if (cache_type == -1) |
89812fc8 JO |
333 | return -EINVAL; |
334 | ||
335 | n = snprintf(name, MAX_NAME_LEN, "%s", type); | |
61c45981 | 336 | |
89812fc8 JO |
337 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
338 | char *str = op_result[i]; | |
339 | ||
275ef387 | 340 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
341 | |
342 | if (cache_op == -1) { | |
0b668bc9 | 343 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 344 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 345 | if (cache_op >= 0) { |
0b668bc9 | 346 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 347 | return -EINVAL; |
61c45981 PM |
348 | continue; |
349 | } | |
350 | } | |
351 | ||
352 | if (cache_result == -1) { | |
0b668bc9 ACM |
353 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
354 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
355 | if (cache_result >= 0) |
356 | continue; | |
357 | } | |
61c45981 | 358 | } |
8326f44d | 359 | |
8326f44d IM |
360 | /* |
361 | * Fall back to reads: | |
362 | */ | |
8953645f IM |
363 | if (cache_op == -1) |
364 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 365 | |
8326f44d IM |
366 | /* |
367 | * Fall back to accesses: | |
368 | */ | |
369 | if (cache_result == -1) | |
370 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
371 | ||
89812fc8 JO |
372 | memset(&attr, 0, sizeof(attr)); |
373 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
374 | attr.type = PERF_TYPE_HW_CACHE; | |
375 | return add_event(list, idx, &attr, name); | |
bcd3279f FW |
376 | } |
377 | ||
c5cd8ac0 | 378 | static int add_tracepoint(struct list_head *list, int *idx, |
89812fc8 | 379 | char *sys_name, char *evt_name) |
bcd3279f | 380 | { |
82fe1c29 | 381 | struct perf_evsel *evsel; |
bcd3279f | 382 | |
ef503831 | 383 | evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); |
c5cd8ac0 | 384 | if (!evsel) |
82fe1c29 | 385 | return -ENOMEM; |
bcd3279f | 386 | |
82fe1c29 | 387 | list_add_tail(&evsel->node, list); |
c5cd8ac0 | 388 | |
82fe1c29 | 389 | return 0; |
8326f44d IM |
390 | } |
391 | ||
c5cd8ac0 | 392 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
f35488f9 | 393 | char *sys_name, char *evt_name) |
bcd3279f FW |
394 | { |
395 | char evt_path[MAXPATHLEN]; | |
396 | struct dirent *evt_ent; | |
397 | DIR *evt_dir; | |
89812fc8 | 398 | int ret = 0; |
bcd3279f | 399 | |
ebf294bf | 400 | snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name); |
bcd3279f | 401 | evt_dir = opendir(evt_path); |
bcd3279f FW |
402 | if (!evt_dir) { |
403 | perror("Can't open event dir"); | |
89812fc8 | 404 | return -1; |
bcd3279f FW |
405 | } |
406 | ||
89812fc8 | 407 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
408 | if (!strcmp(evt_ent->d_name, ".") |
409 | || !strcmp(evt_ent->d_name, "..") | |
410 | || !strcmp(evt_ent->d_name, "enable") | |
411 | || !strcmp(evt_ent->d_name, "filter")) | |
412 | continue; | |
413 | ||
89812fc8 | 414 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
415 | continue; |
416 | ||
89812fc8 | 417 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name); |
bcd3279f FW |
418 | } |
419 | ||
0bd3f084 | 420 | closedir(evt_dir); |
89812fc8 | 421 | return ret; |
bcd3279f FW |
422 | } |
423 | ||
c5cd8ac0 | 424 | static int add_tracepoint_event(struct list_head *list, int *idx, |
f35488f9 JO |
425 | char *sys_name, char *evt_name) |
426 | { | |
427 | return strpbrk(evt_name, "*?") ? | |
428 | add_tracepoint_multi_event(list, idx, sys_name, evt_name) : | |
429 | add_tracepoint(list, idx, sys_name, evt_name); | |
430 | } | |
431 | ||
c5cd8ac0 | 432 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
f35488f9 JO |
433 | char *sys_name, char *evt_name) |
434 | { | |
435 | struct dirent *events_ent; | |
436 | DIR *events_dir; | |
437 | int ret = 0; | |
438 | ||
439 | events_dir = opendir(tracing_events_path); | |
440 | if (!events_dir) { | |
441 | perror("Can't open event dir"); | |
442 | return -1; | |
443 | } | |
444 | ||
445 | while (!ret && (events_ent = readdir(events_dir))) { | |
446 | if (!strcmp(events_ent->d_name, ".") | |
447 | || !strcmp(events_ent->d_name, "..") | |
448 | || !strcmp(events_ent->d_name, "enable") | |
449 | || !strcmp(events_ent->d_name, "header_event") | |
450 | || !strcmp(events_ent->d_name, "header_page")) | |
451 | continue; | |
452 | ||
453 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
454 | continue; | |
455 | ||
456 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
457 | evt_name); | |
458 | } | |
459 | ||
460 | closedir(events_dir); | |
461 | return ret; | |
462 | } | |
463 | ||
c5cd8ac0 | 464 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
89812fc8 | 465 | char *sys, char *event) |
f6bdafef | 466 | { |
89812fc8 | 467 | int ret; |
f6bdafef | 468 | |
89812fc8 JO |
469 | ret = debugfs_valid_mountpoint(tracing_events_path); |
470 | if (ret) | |
471 | return ret; | |
f6bdafef | 472 | |
f35488f9 JO |
473 | if (strpbrk(sys, "*?")) |
474 | return add_tracepoint_multi_sys(list, idx, sys, event); | |
475 | else | |
476 | return add_tracepoint_event(list, idx, sys, event); | |
f6bdafef JB |
477 | } |
478 | ||
89812fc8 JO |
479 | static int |
480 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
481 | { |
482 | int i; | |
483 | ||
484 | for (i = 0; i < 3; i++) { | |
89812fc8 | 485 | if (!type || !type[i]) |
1b290d67 FW |
486 | break; |
487 | ||
7582732f JO |
488 | #define CHECK_SET_TYPE(bit) \ |
489 | do { \ | |
490 | if (attr->bp_type & bit) \ | |
491 | return -EINVAL; \ | |
492 | else \ | |
493 | attr->bp_type |= bit; \ | |
494 | } while (0) | |
495 | ||
1b290d67 FW |
496 | switch (type[i]) { |
497 | case 'r': | |
7582732f | 498 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
499 | break; |
500 | case 'w': | |
7582732f | 501 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
502 | break; |
503 | case 'x': | |
7582732f | 504 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
505 | break; |
506 | default: | |
89812fc8 | 507 | return -EINVAL; |
1b290d67 FW |
508 | } |
509 | } | |
89812fc8 | 510 | |
7582732f JO |
511 | #undef CHECK_SET_TYPE |
512 | ||
1b290d67 FW |
513 | if (!attr->bp_type) /* Default */ |
514 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
515 | ||
89812fc8 | 516 | return 0; |
1b290d67 FW |
517 | } |
518 | ||
c5cd8ac0 | 519 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
89812fc8 | 520 | void *ptr, char *type) |
1b290d67 | 521 | { |
89812fc8 | 522 | struct perf_event_attr attr; |
1b290d67 | 523 | |
89812fc8 | 524 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 525 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 526 | |
89812fc8 JO |
527 | if (parse_breakpoint_type(type, &attr)) |
528 | return -EINVAL; | |
1b290d67 | 529 | |
aa59a485 FW |
530 | /* |
531 | * We should find a nice way to override the access length | |
532 | * Provide some defaults for now | |
533 | */ | |
89812fc8 JO |
534 | if (attr.bp_type == HW_BREAKPOINT_X) |
535 | attr.bp_len = sizeof(long); | |
aa59a485 | 536 | else |
89812fc8 | 537 | attr.bp_len = HW_BREAKPOINT_LEN_4; |
61c45981 | 538 | |
89812fc8 | 539 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 540 | attr.sample_period = 1; |
b908debd | 541 | |
287e74aa | 542 | return add_event(list, idx, &attr, NULL); |
74d5b588 JSR |
543 | } |
544 | ||
8f707d84 | 545 | static int config_term(struct perf_event_attr *attr, |
6cee6cd3 | 546 | struct parse_events_term *term) |
8f707d84 | 547 | { |
16fa7e82 JO |
548 | #define CHECK_TYPE_VAL(type) \ |
549 | do { \ | |
550 | if (PARSE_EVENTS__TERM_TYPE_ ## type != term->type_val) \ | |
551 | return -EINVAL; \ | |
552 | } while (0) | |
553 | ||
554 | switch (term->type_term) { | |
8f707d84 | 555 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 556 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
557 | attr->config = term->val.num; |
558 | break; | |
559 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 560 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
561 | attr->config1 = term->val.num; |
562 | break; | |
563 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 564 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
565 | attr->config2 = term->val.num; |
566 | break; | |
567 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 568 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
569 | attr->sample_period = term->val.num; |
570 | break; | |
571 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: | |
572 | /* | |
573 | * TODO uncomment when the field is available | |
574 | * attr->branch_sample_type = term->val.num; | |
575 | */ | |
576 | break; | |
6b5fc39b JO |
577 | case PARSE_EVENTS__TERM_TYPE_NAME: |
578 | CHECK_TYPE_VAL(STR); | |
579 | break; | |
8f707d84 JO |
580 | default: |
581 | return -EINVAL; | |
582 | } | |
16fa7e82 | 583 | |
8f707d84 | 584 | return 0; |
16fa7e82 | 585 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
586 | } |
587 | ||
588 | static int config_attr(struct perf_event_attr *attr, | |
589 | struct list_head *head, int fail) | |
590 | { | |
6cee6cd3 | 591 | struct parse_events_term *term; |
8f707d84 JO |
592 | |
593 | list_for_each_entry(term, head, list) | |
594 | if (config_term(attr, term) && fail) | |
595 | return -EINVAL; | |
596 | ||
597 | return 0; | |
598 | } | |
599 | ||
c5cd8ac0 | 600 | int parse_events_add_numeric(struct list_head *list, int *idx, |
b527bab5 | 601 | u32 type, u64 config, |
8f707d84 | 602 | struct list_head *head_config) |
8ad8db37 | 603 | { |
89812fc8 | 604 | struct perf_event_attr attr; |
61c45981 | 605 | |
89812fc8 JO |
606 | memset(&attr, 0, sizeof(attr)); |
607 | attr.type = type; | |
608 | attr.config = config; | |
8f707d84 JO |
609 | |
610 | if (head_config && | |
611 | config_attr(&attr, head_config, 1)) | |
612 | return -EINVAL; | |
613 | ||
9db1763c | 614 | return add_event(list, idx, &attr, NULL); |
61c45981 | 615 | } |
8ad8db37 | 616 | |
6cee6cd3 | 617 | static int parse_events__is_name_term(struct parse_events_term *term) |
6b5fc39b JO |
618 | { |
619 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
620 | } | |
621 | ||
9db1763c | 622 | static char *pmu_event_name(struct list_head *head_terms) |
6b5fc39b | 623 | { |
6cee6cd3 | 624 | struct parse_events_term *term; |
6b5fc39b JO |
625 | |
626 | list_for_each_entry(term, head_terms, list) | |
627 | if (parse_events__is_name_term(term)) | |
628 | return term->val.str; | |
629 | ||
9db1763c | 630 | return NULL; |
6b5fc39b JO |
631 | } |
632 | ||
c5cd8ac0 | 633 | int parse_events_add_pmu(struct list_head *list, int *idx, |
5f537a26 JO |
634 | char *name, struct list_head *head_config) |
635 | { | |
636 | struct perf_event_attr attr; | |
637 | struct perf_pmu *pmu; | |
410136f5 | 638 | struct perf_evsel *evsel; |
8a398897 | 639 | const char *unit; |
410136f5 | 640 | double scale; |
5f537a26 JO |
641 | |
642 | pmu = perf_pmu__find(name); | |
643 | if (!pmu) | |
644 | return -EINVAL; | |
645 | ||
646 | memset(&attr, 0, sizeof(attr)); | |
647 | ||
410136f5 | 648 | if (perf_pmu__check_alias(pmu, head_config, &unit, &scale)) |
a6146d50 ZY |
649 | return -EINVAL; |
650 | ||
5f537a26 JO |
651 | /* |
652 | * Configure hardcoded terms first, no need to check | |
653 | * return value when called with fail == 0 ;) | |
654 | */ | |
655 | config_attr(&attr, head_config, 0); | |
656 | ||
657 | if (perf_pmu__config(pmu, &attr, head_config)) | |
658 | return -EINVAL; | |
659 | ||
410136f5 SE |
660 | evsel = __add_event(list, idx, &attr, pmu_event_name(head_config), |
661 | pmu->cpus); | |
662 | if (evsel) { | |
663 | evsel->unit = unit; | |
664 | evsel->scale = scale; | |
665 | } | |
666 | ||
667 | return evsel ? 0 : -ENOMEM; | |
5f537a26 JO |
668 | } |
669 | ||
6a4bb04c JO |
670 | int parse_events__modifier_group(struct list_head *list, |
671 | char *event_mod) | |
89efb029 | 672 | { |
6a4bb04c JO |
673 | return parse_events__modifier_event(list, event_mod, true); |
674 | } | |
675 | ||
63dab225 | 676 | void parse_events__set_leader(char *name, struct list_head *list) |
6a4bb04c JO |
677 | { |
678 | struct perf_evsel *leader; | |
679 | ||
63dab225 ACM |
680 | __perf_evlist__set_leader(list); |
681 | leader = list_entry(list->next, struct perf_evsel, node); | |
6a4bb04c | 682 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
683 | } |
684 | ||
c5cd8ac0 | 685 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
686 | void parse_events_update_lists(struct list_head *list_event, |
687 | struct list_head *list_all) | |
688 | { | |
689 | /* | |
690 | * Called for single event definition. Update the | |
89efb029 | 691 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
692 | * list, for next event definition. |
693 | */ | |
694 | list_splice_tail(list_event, list_all); | |
b847cbdc | 695 | free(list_event); |
5d7be90e JO |
696 | } |
697 | ||
f5b1135b JO |
698 | struct event_modifier { |
699 | int eu; | |
700 | int ek; | |
701 | int eh; | |
702 | int eH; | |
703 | int eG; | |
704 | int precise; | |
705 | int exclude_GH; | |
3c176311 | 706 | int sample_read; |
e9a7c414 | 707 | int pinned; |
f5b1135b JO |
708 | }; |
709 | ||
710 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
711 | struct perf_evsel *evsel) | |
61c45981 | 712 | { |
f5b1135b JO |
713 | int eu = evsel ? evsel->attr.exclude_user : 0; |
714 | int ek = evsel ? evsel->attr.exclude_kernel : 0; | |
715 | int eh = evsel ? evsel->attr.exclude_hv : 0; | |
716 | int eH = evsel ? evsel->attr.exclude_host : 0; | |
717 | int eG = evsel ? evsel->attr.exclude_guest : 0; | |
718 | int precise = evsel ? evsel->attr.precise_ip : 0; | |
3c176311 | 719 | int sample_read = 0; |
e9a7c414 | 720 | int pinned = evsel ? evsel->attr.pinned : 0; |
a21ca2ca | 721 | |
f5b1135b JO |
722 | int exclude = eu | ek | eh; |
723 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
724 | ||
f5b1135b | 725 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 726 | |
61c45981 | 727 | while (*str) { |
ab608344 PZ |
728 | if (*str == 'u') { |
729 | if (!exclude) | |
730 | exclude = eu = ek = eh = 1; | |
61c45981 | 731 | eu = 0; |
ab608344 PZ |
732 | } else if (*str == 'k') { |
733 | if (!exclude) | |
734 | exclude = eu = ek = eh = 1; | |
61c45981 | 735 | ek = 0; |
ab608344 PZ |
736 | } else if (*str == 'h') { |
737 | if (!exclude) | |
738 | exclude = eu = ek = eh = 1; | |
61c45981 | 739 | eh = 0; |
99320cc8 JR |
740 | } else if (*str == 'G') { |
741 | if (!exclude_GH) | |
742 | exclude_GH = eG = eH = 1; | |
743 | eG = 0; | |
744 | } else if (*str == 'H') { | |
745 | if (!exclude_GH) | |
746 | exclude_GH = eG = eH = 1; | |
747 | eH = 0; | |
ab608344 PZ |
748 | } else if (*str == 'p') { |
749 | precise++; | |
1342798c DA |
750 | /* use of precise requires exclude_guest */ |
751 | if (!exclude_GH) | |
752 | eG = 1; | |
3c176311 JO |
753 | } else if (*str == 'S') { |
754 | sample_read = 1; | |
e9a7c414 ME |
755 | } else if (*str == 'D') { |
756 | pinned = 1; | |
ab608344 | 757 | } else |
61c45981 | 758 | break; |
ab608344 | 759 | |
61c45981 | 760 | ++str; |
5242519b | 761 | } |
ceb53fbf | 762 | |
89812fc8 JO |
763 | /* |
764 | * precise ip: | |
765 | * | |
766 | * 0 - SAMPLE_IP can have arbitrary skid | |
767 | * 1 - SAMPLE_IP must have constant skid | |
768 | * 2 - SAMPLE_IP requested to have 0 skid | |
769 | * 3 - SAMPLE_IP must have 0 skid | |
770 | * | |
771 | * See also PERF_RECORD_MISC_EXACT_IP | |
772 | */ | |
773 | if (precise > 3) | |
774 | return -EINVAL; | |
ceb53fbf | 775 | |
f5b1135b JO |
776 | mod->eu = eu; |
777 | mod->ek = ek; | |
778 | mod->eh = eh; | |
779 | mod->eH = eH; | |
780 | mod->eG = eG; | |
781 | mod->precise = precise; | |
782 | mod->exclude_GH = exclude_GH; | |
3c176311 | 783 | mod->sample_read = sample_read; |
e9a7c414 ME |
784 | mod->pinned = pinned; |
785 | ||
f5b1135b JO |
786 | return 0; |
787 | } | |
788 | ||
534123f4 JO |
789 | /* |
790 | * Basic modifier sanity check to validate it contains only one | |
791 | * instance of any modifier (apart from 'p') present. | |
792 | */ | |
793 | static int check_modifier(char *str) | |
794 | { | |
795 | char *p = str; | |
796 | ||
797 | /* The sizeof includes 0 byte as well. */ | |
e9a7c414 | 798 | if (strlen(str) > (sizeof("ukhGHpppSD") - 1)) |
534123f4 JO |
799 | return -1; |
800 | ||
801 | while (*p) { | |
802 | if (*p != 'p' && strchr(p + 1, *p)) | |
803 | return -1; | |
804 | p++; | |
805 | } | |
806 | ||
807 | return 0; | |
808 | } | |
809 | ||
f5b1135b JO |
810 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
811 | { | |
812 | struct perf_evsel *evsel; | |
813 | struct event_modifier mod; | |
814 | ||
815 | if (str == NULL) | |
816 | return 0; | |
817 | ||
534123f4 JO |
818 | if (check_modifier(str)) |
819 | return -EINVAL; | |
820 | ||
f5b1135b JO |
821 | if (!add && get_event_modifier(&mod, str, NULL)) |
822 | return -EINVAL; | |
823 | ||
0050f7aa | 824 | __evlist__for_each(list, evsel) { |
f5b1135b JO |
825 | if (add && get_event_modifier(&mod, str, evsel)) |
826 | return -EINVAL; | |
827 | ||
828 | evsel->attr.exclude_user = mod.eu; | |
829 | evsel->attr.exclude_kernel = mod.ek; | |
830 | evsel->attr.exclude_hv = mod.eh; | |
831 | evsel->attr.precise_ip = mod.precise; | |
832 | evsel->attr.exclude_host = mod.eH; | |
833 | evsel->attr.exclude_guest = mod.eG; | |
834 | evsel->exclude_GH = mod.exclude_GH; | |
3c176311 | 835 | evsel->sample_read = mod.sample_read; |
e9a7c414 ME |
836 | |
837 | if (perf_evsel__is_group_leader(evsel)) | |
838 | evsel->attr.pinned = mod.pinned; | |
89812fc8 | 839 | } |
ceb53fbf | 840 | |
61c45981 PM |
841 | return 0; |
842 | } | |
8ad8db37 | 843 | |
ac2ba9f3 RR |
844 | int parse_events_name(struct list_head *list, char *name) |
845 | { | |
846 | struct perf_evsel *evsel; | |
847 | ||
0050f7aa | 848 | __evlist__for_each(list, evsel) { |
ac2ba9f3 RR |
849 | if (!evsel->name) |
850 | evsel->name = strdup(name); | |
851 | } | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
50e200f0 AK |
856 | static int parse_events__scanner(const char *str, void *data, int start_token); |
857 | ||
858 | static int parse_events_fixup(int ret, const char *str, void *data, | |
859 | int start_token) | |
860 | { | |
861 | char *o = strdup(str); | |
862 | char *s = NULL; | |
863 | char *t = o; | |
864 | char *p; | |
865 | int len = 0; | |
866 | ||
867 | if (!o) | |
868 | return ret; | |
869 | while ((p = strsep(&t, ",")) != NULL) { | |
870 | if (s) | |
871 | str_append(&s, &len, ","); | |
872 | str_append(&s, &len, "cpu/"); | |
873 | str_append(&s, &len, p); | |
874 | str_append(&s, &len, "/"); | |
875 | } | |
876 | free(o); | |
877 | if (!s) | |
878 | return -ENOMEM; | |
879 | return parse_events__scanner(s, data, start_token); | |
880 | } | |
881 | ||
90e2b22d | 882 | static int parse_events__scanner(const char *str, void *data, int start_token) |
61c45981 | 883 | { |
89812fc8 | 884 | YY_BUFFER_STATE buffer; |
ac20de6f | 885 | void *scanner; |
46010ab2 | 886 | int ret; |
bcd3279f | 887 | |
90e2b22d | 888 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
889 | if (ret) |
890 | return ret; | |
891 | ||
892 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 893 | |
82ba1f2f JO |
894 | #ifdef PARSER_DEBUG |
895 | parse_events_debug = 1; | |
896 | #endif | |
ac20de6f ZY |
897 | ret = parse_events_parse(data, scanner); |
898 | ||
899 | parse_events__flush_buffer(buffer, scanner); | |
900 | parse_events__delete_buffer(buffer, scanner); | |
901 | parse_events_lex_destroy(scanner); | |
50e200f0 AK |
902 | if (ret && !strchr(str, '/')) |
903 | ret = parse_events_fixup(ret, str, data, start_token); | |
ac20de6f ZY |
904 | return ret; |
905 | } | |
bcd3279f | 906 | |
90e2b22d JO |
907 | /* |
908 | * parse event config string, return a list of event terms. | |
909 | */ | |
910 | int parse_events_terms(struct list_head *terms, const char *str) | |
911 | { | |
23b6339b | 912 | struct parse_events_terms data = { |
90e2b22d JO |
913 | .terms = NULL, |
914 | }; | |
915 | int ret; | |
916 | ||
917 | ret = parse_events__scanner(str, &data, PE_START_TERMS); | |
918 | if (!ret) { | |
919 | list_splice(data.terms, terms); | |
74cf249d | 920 | zfree(&data.terms); |
90e2b22d JO |
921 | return 0; |
922 | } | |
923 | ||
b2c34fde AH |
924 | if (data.terms) |
925 | parse_events__free_terms(data.terms); | |
90e2b22d JO |
926 | return ret; |
927 | } | |
928 | ||
d8f7bbc9 | 929 | int parse_events(struct perf_evlist *evlist, const char *str) |
ac20de6f | 930 | { |
23b6339b | 931 | struct parse_events_evlist data = { |
ac20de6f ZY |
932 | .list = LIST_HEAD_INIT(data.list), |
933 | .idx = evlist->nr_entries, | |
934 | }; | |
935 | int ret; | |
bcd3279f | 936 | |
90e2b22d | 937 | ret = parse_events__scanner(str, &data, PE_START_EVENTS); |
89812fc8 | 938 | if (!ret) { |
46010ab2 JO |
939 | int entries = data.idx - evlist->nr_entries; |
940 | perf_evlist__splice_list_tail(evlist, &data.list, entries); | |
97f63e4a | 941 | evlist->nr_groups += data.nr_groups; |
89812fc8 JO |
942 | return 0; |
943 | } | |
bcd3279f | 944 | |
5d7be90e JO |
945 | /* |
946 | * There are 2 users - builtin-record and builtin-test objects. | |
947 | * Both call perf_evlist__delete in case of error, so we dont | |
948 | * need to bother. | |
949 | */ | |
bcd3279f | 950 | return ret; |
8ad8db37 IM |
951 | } |
952 | ||
f120f9d5 | 953 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 954 | int unset __maybe_unused) |
f120f9d5 JO |
955 | { |
956 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; | |
d8f7bbc9 | 957 | int ret = parse_events(evlist, str); |
9175ce1f AK |
958 | |
959 | if (ret) { | |
960 | fprintf(stderr, "invalid or unsupported event: '%s'\n", str); | |
961 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); | |
962 | } | |
963 | return ret; | |
f120f9d5 JO |
964 | } |
965 | ||
361c99a6 | 966 | int parse_filter(const struct option *opt, const char *str, |
1d037ca1 | 967 | int unset __maybe_unused) |
c171b552 | 968 | { |
361c99a6 | 969 | struct perf_evlist *evlist = *(struct perf_evlist **)opt->value; |
69aad6f1 | 970 | struct perf_evsel *last = NULL; |
c171b552 | 971 | |
361c99a6 | 972 | if (evlist->nr_entries > 0) |
0c21f736 | 973 | last = perf_evlist__last(evlist); |
69aad6f1 ACM |
974 | |
975 | if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) { | |
c171b552 LZ |
976 | fprintf(stderr, |
977 | "-F option should follow a -e tracepoint option\n"); | |
978 | return -1; | |
979 | } | |
980 | ||
69aad6f1 ACM |
981 | last->filter = strdup(str); |
982 | if (last->filter == NULL) { | |
c171b552 LZ |
983 | fprintf(stderr, "not enough memory to hold filter string\n"); |
984 | return -1; | |
985 | } | |
c171b552 LZ |
986 | |
987 | return 0; | |
988 | } | |
989 | ||
86847b62 | 990 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
991 | "Hardware event", |
992 | "Software event", | |
993 | "Tracepoint event", | |
994 | "Hardware cache event", | |
41bdcb23 LW |
995 | "Raw hardware event descriptor", |
996 | "Hardware breakpoint", | |
86847b62 TG |
997 | }; |
998 | ||
f6bdafef JB |
999 | /* |
1000 | * Print the events from <debugfs_mount_point>/tracing/events | |
1001 | */ | |
1002 | ||
a3277d2d FW |
1003 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
1004 | bool name_only) | |
f6bdafef JB |
1005 | { |
1006 | DIR *sys_dir, *evt_dir; | |
1007 | struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; | |
f6bdafef | 1008 | char evt_path[MAXPATHLEN]; |
725b1368 | 1009 | char dir_path[MAXPATHLEN]; |
6e81c74c | 1010 | char sbuf[STRERR_BUFSIZE]; |
f6bdafef | 1011 | |
f11cfc6f | 1012 | if (debugfs_valid_mountpoint(tracing_events_path)) { |
6e81c74c MH |
1013 | printf(" [ Tracepoints not available: %s ]\n", |
1014 | strerror_r(errno, sbuf, sizeof(sbuf))); | |
f6bdafef | 1015 | return; |
f11cfc6f | 1016 | } |
f6bdafef | 1017 | |
ebf294bf | 1018 | sys_dir = opendir(tracing_events_path); |
f6bdafef | 1019 | if (!sys_dir) |
725b1368 | 1020 | return; |
6b58e7f1 UD |
1021 | |
1022 | for_each_subsystem(sys_dir, sys_dirent, sys_next) { | |
668b8788 ACM |
1023 | if (subsys_glob != NULL && |
1024 | !strglobmatch(sys_dirent.d_name, subsys_glob)) | |
1025 | continue; | |
725b1368 | 1026 | |
ebf294bf | 1027 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
725b1368 ED |
1028 | sys_dirent.d_name); |
1029 | evt_dir = opendir(dir_path); | |
1030 | if (!evt_dir) | |
6b58e7f1 | 1031 | continue; |
725b1368 | 1032 | |
6b58e7f1 | 1033 | for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { |
668b8788 ACM |
1034 | if (event_glob != NULL && |
1035 | !strglobmatch(evt_dirent.d_name, event_glob)) | |
1036 | continue; | |
1037 | ||
a3277d2d FW |
1038 | if (name_only) { |
1039 | printf("%s:%s ", sys_dirent.d_name, evt_dirent.d_name); | |
1040 | continue; | |
1041 | } | |
1042 | ||
f6bdafef JB |
1043 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
1044 | sys_dirent.d_name, evt_dirent.d_name); | |
947b4ad1 | 1045 | printf(" %-50s [%s]\n", evt_path, |
41bdcb23 | 1046 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); |
f6bdafef JB |
1047 | } |
1048 | closedir(evt_dir); | |
1049 | } | |
f6bdafef JB |
1050 | closedir(sys_dir); |
1051 | } | |
1052 | ||
20c457b8 TR |
1053 | /* |
1054 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
1055 | */ | |
1056 | ||
1057 | int is_valid_tracepoint(const char *event_string) | |
1058 | { | |
1059 | DIR *sys_dir, *evt_dir; | |
1060 | struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; | |
1061 | char evt_path[MAXPATHLEN]; | |
1062 | char dir_path[MAXPATHLEN]; | |
1063 | ||
ebf294bf | 1064 | if (debugfs_valid_mountpoint(tracing_events_path)) |
20c457b8 TR |
1065 | return 0; |
1066 | ||
ebf294bf | 1067 | sys_dir = opendir(tracing_events_path); |
20c457b8 TR |
1068 | if (!sys_dir) |
1069 | return 0; | |
1070 | ||
1071 | for_each_subsystem(sys_dir, sys_dirent, sys_next) { | |
1072 | ||
ebf294bf | 1073 | snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path, |
20c457b8 TR |
1074 | sys_dirent.d_name); |
1075 | evt_dir = opendir(dir_path); | |
1076 | if (!evt_dir) | |
1077 | continue; | |
1078 | ||
1079 | for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) { | |
1080 | snprintf(evt_path, MAXPATHLEN, "%s:%s", | |
1081 | sys_dirent.d_name, evt_dirent.d_name); | |
1082 | if (!strcmp(evt_path, event_string)) { | |
1083 | closedir(evt_dir); | |
1084 | closedir(sys_dir); | |
1085 | return 1; | |
1086 | } | |
1087 | } | |
1088 | closedir(evt_dir); | |
1089 | } | |
1090 | closedir(sys_dir); | |
1091 | return 0; | |
1092 | } | |
1093 | ||
b41f1cec NK |
1094 | static bool is_event_supported(u8 type, unsigned config) |
1095 | { | |
1096 | bool ret = true; | |
88fee52e | 1097 | int open_return; |
b41f1cec NK |
1098 | struct perf_evsel *evsel; |
1099 | struct perf_event_attr attr = { | |
1100 | .type = type, | |
1101 | .config = config, | |
1102 | .disabled = 1, | |
b41f1cec NK |
1103 | }; |
1104 | struct { | |
1105 | struct thread_map map; | |
1106 | int threads[1]; | |
1107 | } tmap = { | |
1108 | .map.nr = 1, | |
1109 | .threads = { 0 }, | |
1110 | }; | |
1111 | ||
ef503831 | 1112 | evsel = perf_evsel__new(&attr); |
b41f1cec | 1113 | if (evsel) { |
88fee52e VW |
1114 | open_return = perf_evsel__open(evsel, NULL, &tmap.map); |
1115 | ret = open_return >= 0; | |
1116 | ||
1117 | if (open_return == -EACCES) { | |
1118 | /* | |
1119 | * This happens if the paranoid value | |
1120 | * /proc/sys/kernel/perf_event_paranoid is set to 2 | |
1121 | * Re-run with exclude_kernel set; we don't do that | |
1122 | * by default as some ARM machines do not support it. | |
1123 | * | |
1124 | */ | |
1125 | evsel->attr.exclude_kernel = 1; | |
1126 | ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0; | |
1127 | } | |
b41f1cec NK |
1128 | perf_evsel__delete(evsel); |
1129 | } | |
1130 | ||
1131 | return ret; | |
1132 | } | |
1133 | ||
1dc12760 JO |
1134 | static void __print_events_type(u8 type, struct event_symbol *syms, |
1135 | unsigned max) | |
668b8788 | 1136 | { |
668b8788 | 1137 | char name[64]; |
1dc12760 | 1138 | unsigned i; |
668b8788 | 1139 | |
1dc12760 | 1140 | for (i = 0; i < max ; i++, syms++) { |
b41f1cec NK |
1141 | if (!is_event_supported(type, i)) |
1142 | continue; | |
1143 | ||
668b8788 ACM |
1144 | if (strlen(syms->alias)) |
1145 | snprintf(name, sizeof(name), "%s OR %s", | |
1146 | syms->symbol, syms->alias); | |
1147 | else | |
1148 | snprintf(name, sizeof(name), "%s", syms->symbol); | |
1149 | ||
b41f1cec | 1150 | printf(" %-50s [%s]\n", name, event_type_descriptors[type]); |
668b8788 ACM |
1151 | } |
1152 | } | |
1153 | ||
1dc12760 JO |
1154 | void print_events_type(u8 type) |
1155 | { | |
1156 | if (type == PERF_TYPE_SOFTWARE) | |
1157 | __print_events_type(type, event_symbols_sw, PERF_COUNT_SW_MAX); | |
1158 | else | |
1159 | __print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX); | |
1160 | } | |
1161 | ||
a3277d2d | 1162 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 ACM |
1163 | { |
1164 | unsigned int type, op, i, printed = 0; | |
0b668bc9 | 1165 | char name[64]; |
668b8788 ACM |
1166 | |
1167 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
1168 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
1169 | /* skip invalid cache type */ | |
0b668bc9 | 1170 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
1171 | continue; |
1172 | ||
1173 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
1174 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
1175 | name, sizeof(name)); | |
947b4ad1 | 1176 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
1177 | continue; |
1178 | ||
b41f1cec NK |
1179 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
1180 | type | (op << 8) | (i << 16))) | |
1181 | continue; | |
1182 | ||
a3277d2d FW |
1183 | if (name_only) |
1184 | printf("%s ", name); | |
1185 | else | |
1186 | printf(" %-50s [%s]\n", name, | |
1187 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
668b8788 ACM |
1188 | ++printed; |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | ||
dc098b35 AK |
1193 | if (printed) |
1194 | printf("\n"); | |
668b8788 ACM |
1195 | return printed; |
1196 | } | |
1197 | ||
1dc12760 | 1198 | static void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
1199 | struct event_symbol *syms, unsigned max, |
1200 | bool name_only) | |
8ad8db37 | 1201 | { |
1dc12760 | 1202 | unsigned i, printed = 0; |
947b4ad1 | 1203 | char name[MAX_NAME_LEN]; |
8ad8db37 | 1204 | |
1dc12760 | 1205 | for (i = 0; i < max; i++, syms++) { |
668b8788 ACM |
1206 | |
1207 | if (event_glob != NULL && | |
1208 | !(strglobmatch(syms->symbol, event_glob) || | |
1209 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
1210 | continue; | |
8ad8db37 | 1211 | |
b41f1cec NK |
1212 | if (!is_event_supported(type, i)) |
1213 | continue; | |
1214 | ||
a3277d2d FW |
1215 | if (name_only) { |
1216 | printf("%s ", syms->symbol); | |
1217 | continue; | |
1218 | } | |
1219 | ||
74d5b588 | 1220 | if (strlen(syms->alias)) |
947b4ad1 | 1221 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 1222 | else |
947b4ad1 | 1223 | strncpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 1224 | |
1dc12760 JO |
1225 | printf(" %-50s [%s]\n", name, event_type_descriptors[type]); |
1226 | ||
1227 | printed++; | |
8ad8db37 IM |
1228 | } |
1229 | ||
1dc12760 | 1230 | if (printed) |
668b8788 | 1231 | printf("\n"); |
1dc12760 JO |
1232 | } |
1233 | ||
1234 | /* | |
1235 | * Print the help text for the event symbols: | |
1236 | */ | |
a3277d2d | 1237 | void print_events(const char *event_glob, bool name_only) |
1dc12760 | 1238 | { |
a3277d2d FW |
1239 | if (!name_only) { |
1240 | printf("\n"); | |
1241 | printf("List of pre-defined events (to be used in -e):\n"); | |
1242 | } | |
1dc12760 JO |
1243 | |
1244 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, | |
a3277d2d | 1245 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
1246 | |
1247 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 1248 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
1dc12760 | 1249 | |
a3277d2d | 1250 | print_hwcache_events(event_glob, name_only); |
668b8788 | 1251 | |
dc098b35 AK |
1252 | print_pmu_events(event_glob, name_only); |
1253 | ||
668b8788 ACM |
1254 | if (event_glob != NULL) |
1255 | return; | |
73c24cb8 | 1256 | |
a3277d2d | 1257 | if (!name_only) { |
a3277d2d FW |
1258 | printf(" %-50s [%s]\n", |
1259 | "rNNN", | |
1260 | event_type_descriptors[PERF_TYPE_RAW]); | |
1261 | printf(" %-50s [%s]\n", | |
1262 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
1263 | event_type_descriptors[PERF_TYPE_RAW]); | |
af3df2cf | 1264 | printf(" (see 'man perf-list' on how to encode it)\n"); |
a3277d2d FW |
1265 | printf("\n"); |
1266 | ||
1267 | printf(" %-50s [%s]\n", | |
1268 | "mem:<addr>[:access]", | |
41bdcb23 | 1269 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
a3277d2d FW |
1270 | printf("\n"); |
1271 | } | |
1b290d67 | 1272 | |
a3277d2d | 1273 | print_tracepoint_events(NULL, NULL, name_only); |
8ad8db37 | 1274 | } |
8f707d84 | 1275 | |
6cee6cd3 | 1276 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 1277 | { |
16fa7e82 | 1278 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
1279 | } |
1280 | ||
6cee6cd3 | 1281 | static int new_term(struct parse_events_term **_term, int type_val, |
16fa7e82 | 1282 | int type_term, char *config, |
b527bab5 | 1283 | char *str, u64 num) |
8f707d84 | 1284 | { |
6cee6cd3 | 1285 | struct parse_events_term *term; |
8f707d84 JO |
1286 | |
1287 | term = zalloc(sizeof(*term)); | |
1288 | if (!term) | |
1289 | return -ENOMEM; | |
1290 | ||
1291 | INIT_LIST_HEAD(&term->list); | |
16fa7e82 JO |
1292 | term->type_val = type_val; |
1293 | term->type_term = type_term; | |
8f707d84 JO |
1294 | term->config = config; |
1295 | ||
16fa7e82 | 1296 | switch (type_val) { |
8f707d84 JO |
1297 | case PARSE_EVENTS__TERM_TYPE_NUM: |
1298 | term->val.num = num; | |
1299 | break; | |
1300 | case PARSE_EVENTS__TERM_TYPE_STR: | |
1301 | term->val.str = str; | |
1302 | break; | |
1303 | default: | |
4be8be6b | 1304 | free(term); |
8f707d84 JO |
1305 | return -EINVAL; |
1306 | } | |
1307 | ||
1308 | *_term = term; | |
1309 | return 0; | |
1310 | } | |
1311 | ||
6cee6cd3 | 1312 | int parse_events_term__num(struct parse_events_term **term, |
b527bab5 | 1313 | int type_term, char *config, u64 num) |
16fa7e82 JO |
1314 | { |
1315 | return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term, | |
1316 | config, NULL, num); | |
1317 | } | |
1318 | ||
6cee6cd3 | 1319 | int parse_events_term__str(struct parse_events_term **term, |
16fa7e82 JO |
1320 | int type_term, char *config, char *str) |
1321 | { | |
1322 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term, | |
1323 | config, str, 0); | |
1324 | } | |
1325 | ||
6cee6cd3 | 1326 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
1327 | char *config, unsigned idx) |
1328 | { | |
1329 | struct event_symbol *sym; | |
1330 | ||
1331 | BUG_ON(idx >= PERF_COUNT_HW_MAX); | |
1332 | sym = &event_symbols_hw[idx]; | |
1333 | ||
1334 | if (config) | |
1335 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, | |
1336 | PARSE_EVENTS__TERM_TYPE_USER, config, | |
1337 | (char *) sym->symbol, 0); | |
1338 | else | |
1339 | return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, | |
1340 | PARSE_EVENTS__TERM_TYPE_USER, | |
1341 | (char *) "event", (char *) sym->symbol, 0); | |
1342 | } | |
1343 | ||
6cee6cd3 ACM |
1344 | int parse_events_term__clone(struct parse_events_term **new, |
1345 | struct parse_events_term *term) | |
a6146d50 ZY |
1346 | { |
1347 | return new_term(new, term->type_val, term->type_term, term->config, | |
1348 | term->val.str, term->val.num); | |
1349 | } | |
1350 | ||
8f707d84 JO |
1351 | void parse_events__free_terms(struct list_head *terms) |
1352 | { | |
6cee6cd3 | 1353 | struct parse_events_term *term, *h; |
8f707d84 JO |
1354 | |
1355 | list_for_each_entry_safe(term, h, terms, list) | |
1356 | free(term); | |
8f707d84 | 1357 | } |