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