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