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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> |
7f7c536f | 4 | #include <linux/zalloc.h> |
76b31a29 | 5 | #include <dirent.h> |
a43783ae | 6 | #include <errno.h> |
86a5e0c2 | 7 | #include <sys/ioctl.h> |
bafae98e ACM |
8 | #include <sys/types.h> |
9 | #include <sys/stat.h> | |
10 | #include <fcntl.h> | |
391e4206 | 11 | #include <sys/param.h> |
b0742e90 | 12 | #include "term.h" |
6b58e7f1 | 13 | #include "../perf.h" |
361c99a6 | 14 | #include "evlist.h" |
69aad6f1 | 15 | #include "evsel.h" |
4b6ab94e | 16 | #include <subcmd/parse-options.h> |
8ad8db37 | 17 | #include "parse-events.h" |
4b6ab94e | 18 | #include <subcmd/exec-cmd.h> |
a067558e | 19 | #include "string2.h" |
8ec20b17 | 20 | #include "strlist.h" |
5aab621b | 21 | #include "symbol.h" |
5beeded1 | 22 | #include "cache.h" |
8755a8f2 | 23 | #include "header.h" |
84c86ca1 | 24 | #include "bpf-loader.h" |
6e81c74c | 25 | #include "debug.h" |
592d5a6b | 26 | #include <api/fs/tracing_path.h> |
ac20de6f | 27 | #include "parse-events-bison.h" |
90e2b22d | 28 | #define YY_EXTRA_TYPE int |
89812fc8 | 29 | #include "parse-events-flex.h" |
5f537a26 | 30 | #include "pmu.h" |
b41f1cec | 31 | #include "thread_map.h" |
f30a79b0 | 32 | #include "cpumap.h" |
40218dae | 33 | #include "probe-file.h" |
b39b8393 | 34 | #include "asm/bug.h" |
ac12f676 | 35 | #include "util/parse-branch-options.h" |
71b0acce | 36 | #include "metricgroup.h" |
89812fc8 JO |
37 | |
38 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 39 | |
82ba1f2f JO |
40 | #ifdef PARSER_DEBUG |
41 | extern int parse_events_debug; | |
42 | #endif | |
5d9cdc11 | 43 | int parse_events_parse(void *parse_state, void *scanner); |
e637d177 HK |
44 | static int get_config_terms(struct list_head *head_config, |
45 | struct list_head *head_terms __maybe_unused); | |
bcd3279f | 46 | |
dcb4e102 KL |
47 | static struct perf_pmu_event_symbol *perf_pmu_events_list; |
48 | /* | |
49 | * The variable indicates the number of supported pmu event symbols. | |
50 | * 0 means not initialized and ready to init | |
51 | * -1 means failed to init, don't try anymore | |
52 | * >0 is the number of supported pmu event symbols | |
53 | */ | |
54 | static int perf_pmu_events_list_num; | |
55 | ||
705750f2 | 56 | struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
1dc12760 JO |
57 | [PERF_COUNT_HW_CPU_CYCLES] = { |
58 | .symbol = "cpu-cycles", | |
59 | .alias = "cycles", | |
60 | }, | |
61 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
62 | .symbol = "instructions", | |
63 | .alias = "", | |
64 | }, | |
65 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
66 | .symbol = "cache-references", | |
67 | .alias = "", | |
68 | }, | |
69 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
70 | .symbol = "cache-misses", | |
71 | .alias = "", | |
72 | }, | |
73 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
74 | .symbol = "branch-instructions", | |
75 | .alias = "branches", | |
76 | }, | |
77 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
78 | .symbol = "branch-misses", | |
79 | .alias = "", | |
80 | }, | |
81 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
82 | .symbol = "bus-cycles", | |
83 | .alias = "", | |
84 | }, | |
85 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
86 | .symbol = "stalled-cycles-frontend", | |
87 | .alias = "idle-cycles-frontend", | |
88 | }, | |
89 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
90 | .symbol = "stalled-cycles-backend", | |
91 | .alias = "idle-cycles-backend", | |
92 | }, | |
93 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
94 | .symbol = "ref-cycles", | |
95 | .alias = "", | |
96 | }, | |
97 | }; | |
98 | ||
705750f2 | 99 | struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { |
1dc12760 JO |
100 | [PERF_COUNT_SW_CPU_CLOCK] = { |
101 | .symbol = "cpu-clock", | |
102 | .alias = "", | |
103 | }, | |
104 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
105 | .symbol = "task-clock", | |
106 | .alias = "", | |
107 | }, | |
108 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
109 | .symbol = "page-faults", | |
110 | .alias = "faults", | |
111 | }, | |
112 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
113 | .symbol = "context-switches", | |
114 | .alias = "cs", | |
115 | }, | |
116 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
117 | .symbol = "cpu-migrations", | |
118 | .alias = "migrations", | |
119 | }, | |
120 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
121 | .symbol = "minor-faults", | |
122 | .alias = "", | |
123 | }, | |
124 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
125 | .symbol = "major-faults", | |
126 | .alias = "", | |
127 | }, | |
128 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
129 | .symbol = "alignment-faults", | |
130 | .alias = "", | |
131 | }, | |
132 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
133 | .symbol = "emulation-faults", | |
134 | .alias = "", | |
135 | }, | |
d22d1a2a AH |
136 | [PERF_COUNT_SW_DUMMY] = { |
137 | .symbol = "dummy", | |
138 | .alias = "", | |
139 | }, | |
bae9cc41 ACM |
140 | [PERF_COUNT_SW_BPF_OUTPUT] = { |
141 | .symbol = "bpf-output", | |
142 | .alias = "", | |
143 | }, | |
8ad8db37 IM |
144 | }; |
145 | ||
cdd6c482 IM |
146 | #define __PERF_EVENT_FIELD(config, name) \ |
147 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 148 | |
1fc570ad | 149 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 150 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 151 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 152 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 153 | |
22a9f41b ACM |
154 | #define for_each_subsystem(sys_dir, sys_dirent) \ |
155 | while ((sys_dirent = readdir(sys_dir)) != NULL) \ | |
156 | if (sys_dirent->d_type == DT_DIR && \ | |
157 | (strcmp(sys_dirent->d_name, ".")) && \ | |
158 | (strcmp(sys_dirent->d_name, ".."))) | |
f6bdafef | 159 | |
c02cab22 | 160 | static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir) |
ae07b63f PZ |
161 | { |
162 | char evt_path[MAXPATHLEN]; | |
163 | int fd; | |
164 | ||
c02cab22 | 165 | snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name); |
ae07b63f PZ |
166 | fd = open(evt_path, O_RDONLY); |
167 | if (fd < 0) | |
168 | return -EINVAL; | |
169 | close(fd); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
c02cab22 | 174 | #define for_each_event(dir_path, evt_dir, evt_dirent) \ |
22a9f41b ACM |
175 | while ((evt_dirent = readdir(evt_dir)) != NULL) \ |
176 | if (evt_dirent->d_type == DT_DIR && \ | |
177 | (strcmp(evt_dirent->d_name, ".")) && \ | |
178 | (strcmp(evt_dirent->d_name, "..")) && \ | |
c02cab22 | 179 | (!tp_event_has_id(dir_path, evt_dirent))) |
f6bdafef | 180 | |
270bbbe8 | 181 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 182 | |
f6bdafef | 183 | |
1ef2ed10 | 184 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 185 | { |
1ef2ed10 | 186 | struct tracepoint_path *path = NULL; |
f6bdafef | 187 | DIR *sys_dir, *evt_dir; |
22a9f41b | 188 | struct dirent *sys_dirent, *evt_dirent; |
8aa8a7c8 | 189 | char id_buf[24]; |
725b1368 | 190 | int fd; |
f6bdafef JB |
191 | u64 id; |
192 | char evt_path[MAXPATHLEN]; | |
25a7d914 | 193 | char *dir_path; |
f6bdafef | 194 | |
7014e0e3 | 195 | sys_dir = tracing_events__opendir(); |
f6bdafef | 196 | if (!sys_dir) |
725b1368 | 197 | return NULL; |
6b58e7f1 | 198 | |
22a9f41b | 199 | for_each_subsystem(sys_dir, sys_dirent) { |
25a7d914 ACM |
200 | dir_path = get_events_file(sys_dirent->d_name); |
201 | if (!dir_path) | |
202 | continue; | |
725b1368 ED |
203 | evt_dir = opendir(dir_path); |
204 | if (!evt_dir) | |
25a7d914 | 205 | goto next; |
725b1368 | 206 | |
c02cab22 | 207 | for_each_event(dir_path, evt_dir, evt_dirent) { |
725b1368 | 208 | |
77f18153 JO |
209 | scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, |
210 | evt_dirent->d_name); | |
725b1368 | 211 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
212 | if (fd < 0) |
213 | continue; | |
214 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
215 | close(fd); | |
216 | continue; | |
217 | } | |
218 | close(fd); | |
219 | id = atoll(id_buf); | |
220 | if (id == config) { | |
25a7d914 | 221 | put_events_file(dir_path); |
f6bdafef JB |
222 | closedir(evt_dir); |
223 | closedir(sys_dir); | |
59b4caeb | 224 | path = zalloc(sizeof(*path)); |
5aa365f2 TS |
225 | if (!path) |
226 | return NULL; | |
1ef2ed10 FW |
227 | path->system = malloc(MAX_EVENT_LENGTH); |
228 | if (!path->system) { | |
229 | free(path); | |
230 | return NULL; | |
231 | } | |
232 | path->name = malloc(MAX_EVENT_LENGTH); | |
233 | if (!path->name) { | |
74cf249d | 234 | zfree(&path->system); |
1ef2ed10 FW |
235 | free(path); |
236 | return NULL; | |
237 | } | |
22a9f41b | 238 | strncpy(path->system, sys_dirent->d_name, |
1ef2ed10 | 239 | MAX_EVENT_LENGTH); |
22a9f41b | 240 | strncpy(path->name, evt_dirent->d_name, |
1ef2ed10 FW |
241 | MAX_EVENT_LENGTH); |
242 | return path; | |
f6bdafef JB |
243 | } |
244 | } | |
245 | closedir(evt_dir); | |
25a7d914 ACM |
246 | next: |
247 | put_events_file(dir_path); | |
f6bdafef JB |
248 | } |
249 | ||
f6bdafef | 250 | closedir(sys_dir); |
1ef2ed10 FW |
251 | return NULL; |
252 | } | |
253 | ||
e7c93f09 NK |
254 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
255 | { | |
256 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
257 | char *str = strchr(name, ':'); | |
258 | ||
259 | if (path == NULL || str == NULL) { | |
260 | free(path); | |
261 | return NULL; | |
262 | } | |
263 | ||
264 | path->system = strndup(name, str - name); | |
265 | path->name = strdup(str+1); | |
266 | ||
267 | if (path->system == NULL || path->name == NULL) { | |
74cf249d ACM |
268 | zfree(&path->system); |
269 | zfree(&path->name); | |
506fde11 | 270 | zfree(&path); |
e7c93f09 NK |
271 | } |
272 | ||
273 | return path; | |
274 | } | |
275 | ||
1424dc96 DA |
276 | const char *event_type(int type) |
277 | { | |
278 | switch (type) { | |
279 | case PERF_TYPE_HARDWARE: | |
280 | return "hardware"; | |
281 | ||
282 | case PERF_TYPE_SOFTWARE: | |
283 | return "software"; | |
284 | ||
285 | case PERF_TYPE_TRACEPOINT: | |
286 | return "tracepoint"; | |
287 | ||
288 | case PERF_TYPE_HW_CACHE: | |
289 | return "hardware-cache"; | |
290 | ||
291 | default: | |
292 | break; | |
293 | } | |
294 | ||
295 | return "unknown"; | |
296 | } | |
297 | ||
e814fddd WN |
298 | static int parse_events__is_name_term(struct parse_events_term *term) |
299 | { | |
300 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
301 | } | |
7ae92e74 | 302 | |
e814fddd WN |
303 | static char *get_config_name(struct list_head *head_terms) |
304 | { | |
305 | struct parse_events_term *term; | |
306 | ||
307 | if (!head_terms) | |
308 | return NULL; | |
309 | ||
310 | list_for_each_entry(term, head_terms, list) | |
311 | if (parse_events__is_name_term(term)) | |
312 | return term->val.str; | |
313 | ||
314 | return NULL; | |
315 | } | |
7ae92e74 | 316 | |
32dcd021 | 317 | static struct evsel * |
410136f5 SE |
318 | __add_event(struct list_head *list, int *idx, |
319 | struct perf_event_attr *attr, | |
66ec1191 | 320 | char *name, struct perf_pmu *pmu, |
f0fbb114 AK |
321 | struct list_head *config_terms, bool auto_merge_stats, |
322 | const char *cpu_list) | |
89812fc8 | 323 | { |
32dcd021 | 324 | struct evsel *evsel; |
f854839b | 325 | struct perf_cpu_map *cpus = pmu ? pmu->cpus : |
f0fbb114 | 326 | cpu_list ? cpu_map__new(cpu_list) : NULL; |
89812fc8 JO |
327 | |
328 | event_attr_init(attr); | |
329 | ||
75fc5ae5 | 330 | evsel = perf_evsel__new_idx(attr, *idx); |
c5cd8ac0 | 331 | if (!evsel) |
410136f5 | 332 | return NULL; |
89812fc8 | 333 | |
75fc5ae5 | 334 | (*idx)++; |
38f01d8d JO |
335 | evsel->cpus = perf_cpu_map__get(cpus); |
336 | evsel->own_cpus = perf_cpu_map__get(cpus); | |
66ec1191 | 337 | evsel->system_wide = pmu ? pmu->is_uncore : false; |
63ce8449 | 338 | evsel->auto_merge_stats = auto_merge_stats; |
f30a79b0 | 339 | |
9db1763c ACM |
340 | if (name) |
341 | evsel->name = strdup(name); | |
930a2e29 JO |
342 | |
343 | if (config_terms) | |
344 | list_splice(config_terms, &evsel->config_terms); | |
345 | ||
b27c4ece | 346 | list_add_tail(&evsel->core.node, list); |
410136f5 | 347 | return evsel; |
89812fc8 JO |
348 | } |
349 | ||
c5cd8ac0 | 350 | static int add_event(struct list_head *list, int *idx, |
930a2e29 JO |
351 | struct perf_event_attr *attr, char *name, |
352 | struct list_head *config_terms) | |
7ae92e74 | 353 | { |
f0fbb114 AK |
354 | return __add_event(list, idx, attr, name, NULL, config_terms, false, NULL) ? 0 : -ENOMEM; |
355 | } | |
356 | ||
357 | static int add_event_tool(struct list_head *list, int *idx, | |
358 | enum perf_tool_event tool_event) | |
359 | { | |
32dcd021 | 360 | struct evsel *evsel; |
f0fbb114 AK |
361 | struct perf_event_attr attr = { |
362 | .type = PERF_TYPE_SOFTWARE, | |
363 | .config = PERF_COUNT_SW_DUMMY, | |
364 | }; | |
365 | ||
366 | evsel = __add_event(list, idx, &attr, NULL, NULL, NULL, false, "0"); | |
367 | if (!evsel) | |
368 | return -ENOMEM; | |
369 | evsel->tool_event = tool_event; | |
370 | if (tool_event == PERF_TOOL_DURATION_TIME) | |
371 | evsel->unit = strdup("ns"); | |
372 | return 0; | |
7ae92e74 YZ |
373 | } |
374 | ||
0b668bc9 | 375 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
376 | { |
377 | int i, j; | |
61c45981 | 378 | int n, longest = -1; |
8326f44d IM |
379 | |
380 | for (i = 0; i < size; i++) { | |
0b668bc9 | 381 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 382 | n = strlen(names[i][j]); |
89812fc8 | 383 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
384 | longest = n; |
385 | } | |
89812fc8 | 386 | if (longest > 0) |
61c45981 | 387 | return i; |
8326f44d IM |
388 | } |
389 | ||
8953645f | 390 | return -1; |
8326f44d IM |
391 | } |
392 | ||
43d0b978 WN |
393 | typedef int config_term_func_t(struct perf_event_attr *attr, |
394 | struct parse_events_term *term, | |
395 | struct parse_events_error *err); | |
396 | static int config_term_common(struct perf_event_attr *attr, | |
397 | struct parse_events_term *term, | |
398 | struct parse_events_error *err); | |
399 | static int config_attr(struct perf_event_attr *attr, | |
400 | struct list_head *head, | |
401 | struct parse_events_error *err, | |
402 | config_term_func_t config_term); | |
403 | ||
c5cd8ac0 | 404 | int parse_events_add_cache(struct list_head *list, int *idx, |
43d0b978 | 405 | char *type, char *op_result1, char *op_result2, |
2c97b0d4 | 406 | struct parse_events_error *err, |
43d0b978 | 407 | struct list_head *head_config) |
8326f44d | 408 | { |
89812fc8 | 409 | struct perf_event_attr attr; |
43d0b978 WN |
410 | LIST_HEAD(config_terms); |
411 | char name[MAX_NAME_LEN], *config_name; | |
61c45981 | 412 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
413 | char *op_result[2] = { op_result1, op_result2 }; |
414 | int i, n; | |
8326f44d | 415 | |
8326f44d IM |
416 | /* |
417 | * No fallback - if we cannot get a clear cache type | |
418 | * then bail out: | |
419 | */ | |
0b668bc9 | 420 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 421 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 422 | if (cache_type == -1) |
89812fc8 JO |
423 | return -EINVAL; |
424 | ||
43d0b978 | 425 | config_name = get_config_name(head_config); |
89812fc8 | 426 | n = snprintf(name, MAX_NAME_LEN, "%s", type); |
61c45981 | 427 | |
89812fc8 JO |
428 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
429 | char *str = op_result[i]; | |
430 | ||
275ef387 | 431 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
432 | |
433 | if (cache_op == -1) { | |
0b668bc9 | 434 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 435 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 436 | if (cache_op >= 0) { |
0b668bc9 | 437 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 438 | return -EINVAL; |
61c45981 PM |
439 | continue; |
440 | } | |
441 | } | |
442 | ||
443 | if (cache_result == -1) { | |
0b668bc9 ACM |
444 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
445 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
446 | if (cache_result >= 0) |
447 | continue; | |
448 | } | |
61c45981 | 449 | } |
8326f44d | 450 | |
8326f44d IM |
451 | /* |
452 | * Fall back to reads: | |
453 | */ | |
8953645f IM |
454 | if (cache_op == -1) |
455 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 456 | |
8326f44d IM |
457 | /* |
458 | * Fall back to accesses: | |
459 | */ | |
460 | if (cache_result == -1) | |
461 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
462 | ||
89812fc8 JO |
463 | memset(&attr, 0, sizeof(attr)); |
464 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
465 | attr.type = PERF_TYPE_HW_CACHE; | |
43d0b978 WN |
466 | |
467 | if (head_config) { | |
2c97b0d4 | 468 | if (config_attr(&attr, head_config, err, |
43d0b978 WN |
469 | config_term_common)) |
470 | return -EINVAL; | |
471 | ||
472 | if (get_config_terms(head_config, &config_terms)) | |
473 | return -ENOMEM; | |
474 | } | |
475 | return add_event(list, idx, &attr, config_name ? : name, &config_terms); | |
bcd3279f FW |
476 | } |
477 | ||
272ed29a | 478 | static void tracepoint_error(struct parse_events_error *e, int err, |
8c619d6a | 479 | const char *sys, const char *name) |
19658171 JO |
480 | { |
481 | char help[BUFSIZ]; | |
482 | ||
ec183d22 AH |
483 | if (!e) |
484 | return; | |
485 | ||
19658171 JO |
486 | /* |
487 | * We get error directly from syscall errno ( > 0), | |
488 | * or from encoded pointer's error ( < 0). | |
489 | */ | |
490 | err = abs(err); | |
491 | ||
492 | switch (err) { | |
493 | case EACCES: | |
272ed29a | 494 | e->str = strdup("can't access trace events"); |
19658171 JO |
495 | break; |
496 | case ENOENT: | |
272ed29a | 497 | e->str = strdup("unknown tracepoint"); |
19658171 JO |
498 | break; |
499 | default: | |
272ed29a | 500 | e->str = strdup("failed to add tracepoint"); |
19658171 JO |
501 | break; |
502 | } | |
503 | ||
504 | tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); | |
272ed29a | 505 | e->help = strdup(help); |
19658171 JO |
506 | } |
507 | ||
c5cd8ac0 | 508 | static int add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 509 | const char *sys_name, const char *evt_name, |
272ed29a | 510 | struct parse_events_error *err, |
e637d177 | 511 | struct list_head *head_config) |
bcd3279f | 512 | { |
32dcd021 | 513 | struct evsel *evsel; |
bcd3279f | 514 | |
ef503831 | 515 | evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); |
19658171 | 516 | if (IS_ERR(evsel)) { |
272ed29a | 517 | tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name); |
8dd2a131 | 518 | return PTR_ERR(evsel); |
19658171 | 519 | } |
bcd3279f | 520 | |
e637d177 HK |
521 | if (head_config) { |
522 | LIST_HEAD(config_terms); | |
523 | ||
524 | if (get_config_terms(head_config, &config_terms)) | |
525 | return -ENOMEM; | |
526 | list_splice(&config_terms, &evsel->config_terms); | |
527 | } | |
528 | ||
b27c4ece | 529 | list_add_tail(&evsel->core.node, list); |
82fe1c29 | 530 | return 0; |
8326f44d IM |
531 | } |
532 | ||
c5cd8ac0 | 533 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
8c619d6a | 534 | const char *sys_name, const char *evt_name, |
272ed29a | 535 | struct parse_events_error *err, |
e637d177 | 536 | struct list_head *head_config) |
bcd3279f | 537 | { |
25a7d914 | 538 | char *evt_path; |
bcd3279f FW |
539 | struct dirent *evt_ent; |
540 | DIR *evt_dir; | |
27bf90bf | 541 | int ret = 0, found = 0; |
bcd3279f | 542 | |
25a7d914 ACM |
543 | evt_path = get_events_file(sys_name); |
544 | if (!evt_path) { | |
545 | tracepoint_error(err, errno, sys_name, evt_name); | |
546 | return -1; | |
547 | } | |
bcd3279f | 548 | evt_dir = opendir(evt_path); |
bcd3279f | 549 | if (!evt_dir) { |
25a7d914 | 550 | put_events_file(evt_path); |
272ed29a | 551 | tracepoint_error(err, errno, sys_name, evt_name); |
89812fc8 | 552 | return -1; |
bcd3279f FW |
553 | } |
554 | ||
89812fc8 | 555 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
556 | if (!strcmp(evt_ent->d_name, ".") |
557 | || !strcmp(evt_ent->d_name, "..") | |
558 | || !strcmp(evt_ent->d_name, "enable") | |
559 | || !strcmp(evt_ent->d_name, "filter")) | |
560 | continue; | |
561 | ||
89812fc8 | 562 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
563 | continue; |
564 | ||
27bf90bf JO |
565 | found++; |
566 | ||
e637d177 | 567 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, |
272ed29a | 568 | err, head_config); |
bcd3279f FW |
569 | } |
570 | ||
27bf90bf JO |
571 | if (!found) { |
572 | tracepoint_error(err, ENOENT, sys_name, evt_name); | |
573 | ret = -1; | |
574 | } | |
575 | ||
25a7d914 | 576 | put_events_file(evt_path); |
0bd3f084 | 577 | closedir(evt_dir); |
89812fc8 | 578 | return ret; |
bcd3279f FW |
579 | } |
580 | ||
c5cd8ac0 | 581 | static int add_tracepoint_event(struct list_head *list, int *idx, |
8c619d6a | 582 | const char *sys_name, const char *evt_name, |
272ed29a | 583 | struct parse_events_error *err, |
e637d177 | 584 | struct list_head *head_config) |
f35488f9 JO |
585 | { |
586 | return strpbrk(evt_name, "*?") ? | |
e637d177 | 587 | add_tracepoint_multi_event(list, idx, sys_name, evt_name, |
272ed29a | 588 | err, head_config) : |
e637d177 | 589 | add_tracepoint(list, idx, sys_name, evt_name, |
272ed29a | 590 | err, head_config); |
f35488f9 JO |
591 | } |
592 | ||
c5cd8ac0 | 593 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
8c619d6a | 594 | const char *sys_name, const char *evt_name, |
272ed29a | 595 | struct parse_events_error *err, |
e637d177 | 596 | struct list_head *head_config) |
f35488f9 JO |
597 | { |
598 | struct dirent *events_ent; | |
599 | DIR *events_dir; | |
600 | int ret = 0; | |
601 | ||
7014e0e3 | 602 | events_dir = tracing_events__opendir(); |
f35488f9 | 603 | if (!events_dir) { |
272ed29a | 604 | tracepoint_error(err, errno, sys_name, evt_name); |
f35488f9 JO |
605 | return -1; |
606 | } | |
607 | ||
608 | while (!ret && (events_ent = readdir(events_dir))) { | |
609 | if (!strcmp(events_ent->d_name, ".") | |
610 | || !strcmp(events_ent->d_name, "..") | |
611 | || !strcmp(events_ent->d_name, "enable") | |
612 | || !strcmp(events_ent->d_name, "header_event") | |
613 | || !strcmp(events_ent->d_name, "header_page")) | |
614 | continue; | |
615 | ||
616 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
617 | continue; | |
618 | ||
619 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
272ed29a | 620 | evt_name, err, head_config); |
f35488f9 JO |
621 | } |
622 | ||
623 | closedir(events_dir); | |
624 | return ret; | |
625 | } | |
626 | ||
4edf30e3 | 627 | struct __add_bpf_event_param { |
5d9cdc11 | 628 | struct parse_events_state *parse_state; |
4edf30e3 | 629 | struct list_head *list; |
95088a59 | 630 | struct list_head *head_config; |
4edf30e3 WN |
631 | }; |
632 | ||
af4a0991 | 633 | static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj, |
4edf30e3 WN |
634 | void *_param) |
635 | { | |
636 | LIST_HEAD(new_evsels); | |
637 | struct __add_bpf_event_param *param = _param; | |
5d9cdc11 | 638 | struct parse_events_state *parse_state = param->parse_state; |
4edf30e3 | 639 | struct list_head *list = param->list; |
32dcd021 | 640 | struct evsel *pos; |
4edf30e3 | 641 | int err; |
2620b7e3 ACM |
642 | /* |
643 | * Check if we should add the event, i.e. if it is a TP but starts with a '!', | |
644 | * then don't add the tracepoint, this will be used for something else, like | |
645 | * adding to a BPF_MAP_TYPE_PROG_ARRAY. | |
646 | * | |
647 | * See tools/perf/examples/bpf/augmented_raw_syscalls.c | |
648 | */ | |
649 | if (group[0] == '!') | |
650 | return 0; | |
4edf30e3 WN |
651 | |
652 | pr_debug("add bpf event %s:%s and attach bpf program %d\n", | |
cd102d70 | 653 | group, event, fd); |
4edf30e3 | 654 | |
5d369a75 ACM |
655 | err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group, |
656 | event, parse_state->error, | |
95088a59 | 657 | param->head_config); |
4edf30e3 | 658 | if (err) { |
32dcd021 | 659 | struct evsel *evsel, *tmp; |
4edf30e3 WN |
660 | |
661 | pr_debug("Failed to add BPF event %s:%s\n", | |
cd102d70 | 662 | group, event); |
b27c4ece JO |
663 | list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) { |
664 | list_del_init(&evsel->core.node); | |
5eb2dd2a | 665 | evsel__delete(evsel); |
4edf30e3 WN |
666 | } |
667 | return err; | |
668 | } | |
cd102d70 | 669 | pr_debug("adding %s:%s\n", group, event); |
4edf30e3 | 670 | |
b27c4ece | 671 | list_for_each_entry(pos, &new_evsels, core.node) { |
1f45b1d4 | 672 | pr_debug("adding %s:%s to %p\n", |
cd102d70 | 673 | group, event, pos); |
1f45b1d4 | 674 | pos->bpf_fd = fd; |
af4a0991 | 675 | pos->bpf_obj = obj; |
1f45b1d4 | 676 | } |
4edf30e3 WN |
677 | list_splice(&new_evsels, list); |
678 | return 0; | |
679 | } | |
680 | ||
5d9cdc11 | 681 | int parse_events_load_bpf_obj(struct parse_events_state *parse_state, |
84c86ca1 | 682 | struct list_head *list, |
95088a59 WN |
683 | struct bpf_object *obj, |
684 | struct list_head *head_config) | |
84c86ca1 WN |
685 | { |
686 | int err; | |
687 | char errbuf[BUFSIZ]; | |
5d9cdc11 | 688 | struct __add_bpf_event_param param = {parse_state, list, head_config}; |
aa3abf30 | 689 | static bool registered_unprobe_atexit = false; |
84c86ca1 WN |
690 | |
691 | if (IS_ERR(obj) || !obj) { | |
692 | snprintf(errbuf, sizeof(errbuf), | |
693 | "Internal error: load bpf obj with NULL"); | |
694 | err = -EINVAL; | |
695 | goto errout; | |
696 | } | |
697 | ||
aa3abf30 WN |
698 | /* |
699 | * Register atexit handler before calling bpf__probe() so | |
700 | * bpf__probe() don't need to unprobe probe points its already | |
701 | * created when failure. | |
702 | */ | |
703 | if (!registered_unprobe_atexit) { | |
704 | atexit(bpf__clear); | |
705 | registered_unprobe_atexit = true; | |
706 | } | |
707 | ||
708 | err = bpf__probe(obj); | |
709 | if (err) { | |
710 | bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf)); | |
711 | goto errout; | |
712 | } | |
713 | ||
1e5e3ee8 WN |
714 | err = bpf__load(obj); |
715 | if (err) { | |
716 | bpf__strerror_load(obj, err, errbuf, sizeof(errbuf)); | |
717 | goto errout; | |
718 | } | |
719 | ||
cd102d70 | 720 | err = bpf__foreach_event(obj, add_bpf_event, ¶m); |
4edf30e3 WN |
721 | if (err) { |
722 | snprintf(errbuf, sizeof(errbuf), | |
723 | "Attach events in BPF object failed"); | |
724 | goto errout; | |
725 | } | |
726 | ||
727 | return 0; | |
84c86ca1 | 728 | errout: |
5d9cdc11 ACM |
729 | parse_state->error->help = strdup("(add -v to see detail)"); |
730 | parse_state->error->str = strdup(errbuf); | |
84c86ca1 WN |
731 | return err; |
732 | } | |
733 | ||
a34f3be7 | 734 | static int |
5d9cdc11 | 735 | parse_events_config_bpf(struct parse_events_state *parse_state, |
a34f3be7 WN |
736 | struct bpf_object *obj, |
737 | struct list_head *head_config) | |
738 | { | |
739 | struct parse_events_term *term; | |
740 | int error_pos; | |
741 | ||
742 | if (!head_config || list_empty(head_config)) | |
743 | return 0; | |
744 | ||
745 | list_for_each_entry(term, head_config, list) { | |
746 | char errbuf[BUFSIZ]; | |
747 | int err; | |
748 | ||
749 | if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) { | |
750 | snprintf(errbuf, sizeof(errbuf), | |
751 | "Invalid config term for BPF object"); | |
752 | errbuf[BUFSIZ - 1] = '\0'; | |
753 | ||
5d9cdc11 ACM |
754 | parse_state->error->idx = term->err_term; |
755 | parse_state->error->str = strdup(errbuf); | |
a34f3be7 WN |
756 | return -EINVAL; |
757 | } | |
758 | ||
5d9cdc11 | 759 | err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos); |
a34f3be7 | 760 | if (err) { |
5d9cdc11 | 761 | bpf__strerror_config_obj(obj, term, parse_state->evlist, |
a34f3be7 WN |
762 | &error_pos, err, errbuf, |
763 | sizeof(errbuf)); | |
5d9cdc11 | 764 | parse_state->error->help = strdup( |
7630b3e2 | 765 | "Hint:\tValid config terms:\n" |
e571e029 WN |
766 | " \tmap:[<arraymap>].value<indices>=[value]\n" |
767 | " \tmap:[<eventmap>].event<indices>=[event]\n" | |
7630b3e2 | 768 | "\n" |
e571e029 | 769 | " \twhere <indices> is something like [0,3...5] or [all]\n" |
a34f3be7 | 770 | " \t(add -v to see detail)"); |
5d9cdc11 | 771 | parse_state->error->str = strdup(errbuf); |
a34f3be7 | 772 | if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE) |
5d9cdc11 | 773 | parse_state->error->idx = term->err_val; |
a34f3be7 | 774 | else |
5d9cdc11 | 775 | parse_state->error->idx = term->err_term + error_pos; |
a34f3be7 WN |
776 | return err; |
777 | } | |
778 | } | |
779 | return 0; | |
780 | } | |
781 | ||
95088a59 WN |
782 | /* |
783 | * Split config terms: | |
784 | * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ... | |
785 | * 'call-graph=fp' is 'evt config', should be applied to each | |
786 | * events in bpf.c. | |
787 | * 'map:array.value[0]=1' is 'obj config', should be processed | |
788 | * with parse_events_config_bpf. | |
789 | * | |
790 | * Move object config terms from the first list to obj_head_config. | |
791 | */ | |
792 | static void | |
793 | split_bpf_config_terms(struct list_head *evt_head_config, | |
794 | struct list_head *obj_head_config) | |
795 | { | |
796 | struct parse_events_term *term, *temp; | |
797 | ||
798 | /* | |
799 | * Currectly, all possible user config term | |
800 | * belong to bpf object. parse_events__is_hardcoded_term() | |
801 | * happends to be a good flag. | |
802 | * | |
803 | * See parse_events_config_bpf() and | |
804 | * config_term_tracepoint(). | |
805 | */ | |
806 | list_for_each_entry_safe(term, temp, evt_head_config, list) | |
807 | if (!parse_events__is_hardcoded_term(term)) | |
808 | list_move_tail(&term->list, obj_head_config); | |
809 | } | |
810 | ||
5d9cdc11 | 811 | int parse_events_load_bpf(struct parse_events_state *parse_state, |
84c86ca1 | 812 | struct list_head *list, |
d509db04 | 813 | char *bpf_file_name, |
a34f3be7 WN |
814 | bool source, |
815 | struct list_head *head_config) | |
84c86ca1 | 816 | { |
a34f3be7 | 817 | int err; |
95088a59 WN |
818 | struct bpf_object *obj; |
819 | LIST_HEAD(obj_head_config); | |
820 | ||
821 | if (head_config) | |
822 | split_bpf_config_terms(head_config, &obj_head_config); | |
84c86ca1 | 823 | |
d509db04 | 824 | obj = bpf__prepare_load(bpf_file_name, source); |
6371ca3b | 825 | if (IS_ERR(obj)) { |
84c86ca1 | 826 | char errbuf[BUFSIZ]; |
84c86ca1 | 827 | |
6371ca3b | 828 | err = PTR_ERR(obj); |
84c86ca1 WN |
829 | |
830 | if (err == -ENOTSUP) | |
831 | snprintf(errbuf, sizeof(errbuf), | |
832 | "BPF support is not compiled"); | |
833 | else | |
d3e0ce39 WN |
834 | bpf__strerror_prepare_load(bpf_file_name, |
835 | source, | |
836 | -err, errbuf, | |
837 | sizeof(errbuf)); | |
84c86ca1 | 838 | |
5d9cdc11 ACM |
839 | parse_state->error->help = strdup("(add -v to see detail)"); |
840 | parse_state->error->str = strdup(errbuf); | |
84c86ca1 WN |
841 | return err; |
842 | } | |
843 | ||
5d9cdc11 | 844 | err = parse_events_load_bpf_obj(parse_state, list, obj, head_config); |
a34f3be7 WN |
845 | if (err) |
846 | return err; | |
5d9cdc11 | 847 | err = parse_events_config_bpf(parse_state, obj, &obj_head_config); |
95088a59 WN |
848 | |
849 | /* | |
850 | * Caller doesn't know anything about obj_head_config, | |
851 | * so combine them together again before returnning. | |
852 | */ | |
853 | if (head_config) | |
854 | list_splice_tail(&obj_head_config, head_config); | |
855 | return err; | |
84c86ca1 WN |
856 | } |
857 | ||
89812fc8 JO |
858 | static int |
859 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
860 | { |
861 | int i; | |
862 | ||
863 | for (i = 0; i < 3; i++) { | |
89812fc8 | 864 | if (!type || !type[i]) |
1b290d67 FW |
865 | break; |
866 | ||
7582732f JO |
867 | #define CHECK_SET_TYPE(bit) \ |
868 | do { \ | |
869 | if (attr->bp_type & bit) \ | |
870 | return -EINVAL; \ | |
871 | else \ | |
872 | attr->bp_type |= bit; \ | |
873 | } while (0) | |
874 | ||
1b290d67 FW |
875 | switch (type[i]) { |
876 | case 'r': | |
7582732f | 877 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
878 | break; |
879 | case 'w': | |
7582732f | 880 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
881 | break; |
882 | case 'x': | |
7582732f | 883 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
884 | break; |
885 | default: | |
89812fc8 | 886 | return -EINVAL; |
1b290d67 FW |
887 | } |
888 | } | |
89812fc8 | 889 | |
7582732f JO |
890 | #undef CHECK_SET_TYPE |
891 | ||
1b290d67 FW |
892 | if (!attr->bp_type) /* Default */ |
893 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
894 | ||
89812fc8 | 895 | return 0; |
1b290d67 FW |
896 | } |
897 | ||
c5cd8ac0 | 898 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
3741eb9f | 899 | void *ptr, char *type, u64 len) |
1b290d67 | 900 | { |
89812fc8 | 901 | struct perf_event_attr attr; |
1b290d67 | 902 | |
89812fc8 | 903 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 904 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 905 | |
89812fc8 JO |
906 | if (parse_breakpoint_type(type, &attr)) |
907 | return -EINVAL; | |
1b290d67 | 908 | |
3741eb9f JS |
909 | /* Provide some defaults if len is not specified */ |
910 | if (!len) { | |
911 | if (attr.bp_type == HW_BREAKPOINT_X) | |
912 | len = sizeof(long); | |
913 | else | |
914 | len = HW_BREAKPOINT_LEN_4; | |
915 | } | |
916 | ||
917 | attr.bp_len = len; | |
61c45981 | 918 | |
89812fc8 | 919 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 920 | attr.sample_period = 1; |
b908debd | 921 | |
930a2e29 | 922 | return add_event(list, idx, &attr, NULL, NULL); |
74d5b588 JSR |
923 | } |
924 | ||
3b0e371c JO |
925 | static int check_type_val(struct parse_events_term *term, |
926 | struct parse_events_error *err, | |
927 | int type) | |
928 | { | |
929 | if (type == term->type_val) | |
930 | return 0; | |
931 | ||
932 | if (err) { | |
933 | err->idx = term->err_val; | |
934 | if (type == PARSE_EVENTS__TERM_TYPE_NUM) | |
935 | err->str = strdup("expected numeric value"); | |
936 | else | |
937 | err->str = strdup("expected string value"); | |
938 | } | |
939 | return -EINVAL; | |
940 | } | |
941 | ||
17cb5f84 WN |
942 | /* |
943 | * Update according to parse-events.l | |
944 | */ | |
945 | static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { | |
946 | [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>", | |
947 | [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", | |
948 | [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", | |
949 | [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", | |
950 | [PARSE_EVENTS__TERM_TYPE_NAME] = "name", | |
951 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", | |
952 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", | |
953 | [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type", | |
954 | [PARSE_EVENTS__TERM_TYPE_TIME] = "time", | |
955 | [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph", | |
956 | [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size", | |
957 | [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit", | |
958 | [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit", | |
792d48b4 | 959 | [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack", |
2fda5ada | 960 | [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr", |
626a6b78 WN |
961 | [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite", |
962 | [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite", | |
dd60fba7 | 963 | [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", |
064b4e82 | 964 | [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore", |
17cb5f84 WN |
965 | }; |
966 | ||
1669e509 WN |
967 | static bool config_term_shrinked; |
968 | ||
969 | static bool | |
970 | config_term_avail(int term_type, struct parse_events_error *err) | |
971 | { | |
972 | if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) { | |
973 | err->str = strdup("Invalid term_type"); | |
974 | return false; | |
975 | } | |
976 | if (!config_term_shrinked) | |
977 | return true; | |
978 | ||
979 | switch (term_type) { | |
980 | case PARSE_EVENTS__TERM_TYPE_CONFIG: | |
981 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
982 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
983 | case PARSE_EVENTS__TERM_TYPE_NAME: | |
06835545 | 984 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
064b4e82 | 985 | case PARSE_EVENTS__TERM_TYPE_PERCORE: |
1669e509 WN |
986 | return true; |
987 | default: | |
988 | if (!err) | |
989 | return false; | |
990 | ||
991 | /* term_type is validated so indexing is safe */ | |
992 | if (asprintf(&err->str, "'%s' is not usable in 'perf stat'", | |
993 | config_term_names[term_type]) < 0) | |
994 | err->str = NULL; | |
995 | return false; | |
996 | } | |
997 | } | |
998 | ||
999 | void parse_events__shrink_config_terms(void) | |
1000 | { | |
1001 | config_term_shrinked = true; | |
1002 | } | |
1003 | ||
0b8891a8 HK |
1004 | static int config_term_common(struct perf_event_attr *attr, |
1005 | struct parse_events_term *term, | |
1006 | struct parse_events_error *err) | |
8f707d84 | 1007 | { |
3b0e371c JO |
1008 | #define CHECK_TYPE_VAL(type) \ |
1009 | do { \ | |
1010 | if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \ | |
1011 | return -EINVAL; \ | |
16fa7e82 JO |
1012 | } while (0) |
1013 | ||
1014 | switch (term->type_term) { | |
8f707d84 | 1015 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 1016 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
1017 | attr->config = term->val.num; |
1018 | break; | |
1019 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 1020 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
1021 | attr->config1 = term->val.num; |
1022 | break; | |
1023 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 1024 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
1025 | attr->config2 = term->val.num; |
1026 | break; | |
1027 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 1028 | CHECK_TYPE_VAL(NUM); |
8f707d84 | 1029 | break; |
09af2a55 NK |
1030 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
1031 | CHECK_TYPE_VAL(NUM); | |
1032 | break; | |
8f707d84 | 1033 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
ac12f676 AK |
1034 | CHECK_TYPE_VAL(STR); |
1035 | if (strcmp(term->val.str, "no") && | |
1036 | parse_branch_str(term->val.str, &attr->branch_sample_type)) { | |
1037 | err->str = strdup("invalid branch sample type"); | |
1038 | err->idx = term->err_val; | |
1039 | return -EINVAL; | |
1040 | } | |
8f707d84 | 1041 | break; |
32067712 KL |
1042 | case PARSE_EVENTS__TERM_TYPE_TIME: |
1043 | CHECK_TYPE_VAL(NUM); | |
1044 | if (term->val.num > 1) { | |
1045 | err->str = strdup("expected 0 or 1"); | |
1046 | err->idx = term->err_val; | |
1047 | return -EINVAL; | |
1048 | } | |
1049 | break; | |
d457c963 KL |
1050 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1051 | CHECK_TYPE_VAL(STR); | |
1052 | break; | |
1053 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
1054 | CHECK_TYPE_VAL(NUM); | |
1055 | break; | |
374ce938 WN |
1056 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1057 | CHECK_TYPE_VAL(NUM); | |
1058 | break; | |
1059 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1060 | CHECK_TYPE_VAL(NUM); | |
1061 | break; | |
626a6b78 WN |
1062 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1063 | CHECK_TYPE_VAL(NUM); | |
1064 | break; | |
1065 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1066 | CHECK_TYPE_VAL(NUM); | |
1067 | break; | |
6b5fc39b JO |
1068 | case PARSE_EVENTS__TERM_TYPE_NAME: |
1069 | CHECK_TYPE_VAL(STR); | |
1070 | break; | |
792d48b4 ACM |
1071 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1072 | CHECK_TYPE_VAL(NUM); | |
1073 | break; | |
2fda5ada ACM |
1074 | case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: |
1075 | CHECK_TYPE_VAL(NUM); | |
1076 | break; | |
064b4e82 JY |
1077 | case PARSE_EVENTS__TERM_TYPE_PERCORE: |
1078 | CHECK_TYPE_VAL(NUM); | |
1079 | if ((unsigned int)term->val.num > 1) { | |
1080 | err->str = strdup("expected 0 or 1"); | |
1081 | err->idx = term->err_val; | |
1082 | return -EINVAL; | |
1083 | } | |
1084 | break; | |
8f707d84 | 1085 | default: |
ffeb883e HK |
1086 | err->str = strdup("unknown term"); |
1087 | err->idx = term->err_term; | |
1088 | err->help = parse_events_formats_error_string(NULL); | |
8f707d84 JO |
1089 | return -EINVAL; |
1090 | } | |
16fa7e82 | 1091 | |
1669e509 WN |
1092 | /* |
1093 | * Check term availbility after basic checking so | |
1094 | * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered. | |
1095 | * | |
1096 | * If check availbility at the entry of this function, | |
1097 | * user will see "'<sysfs term>' is not usable in 'perf stat'" | |
1098 | * if an invalid config term is provided for legacy events | |
1099 | * (for example, instructions/badterm/...), which is confusing. | |
1100 | */ | |
1101 | if (!config_term_avail(term->type_term, err)) | |
1102 | return -EINVAL; | |
8f707d84 | 1103 | return 0; |
16fa7e82 | 1104 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
1105 | } |
1106 | ||
0b8891a8 HK |
1107 | static int config_term_pmu(struct perf_event_attr *attr, |
1108 | struct parse_events_term *term, | |
1109 | struct parse_events_error *err) | |
1110 | { | |
dd60fba7 MP |
1111 | if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER || |
1112 | term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG) | |
0b8891a8 HK |
1113 | /* |
1114 | * Always succeed for sysfs terms, as we dont know | |
1115 | * at this point what type they need to have. | |
1116 | */ | |
1117 | return 0; | |
1118 | else | |
1119 | return config_term_common(attr, term, err); | |
1120 | } | |
1121 | ||
e637d177 HK |
1122 | static int config_term_tracepoint(struct perf_event_attr *attr, |
1123 | struct parse_events_term *term, | |
1124 | struct parse_events_error *err) | |
1125 | { | |
1126 | switch (term->type_term) { | |
1127 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: | |
1128 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
374ce938 WN |
1129 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1130 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
792d48b4 | 1131 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
2fda5ada | 1132 | case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: |
626a6b78 WN |
1133 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1134 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
e637d177 HK |
1135 | return config_term_common(attr, term, err); |
1136 | default: | |
1137 | if (err) { | |
1138 | err->idx = term->err_term; | |
1139 | err->str = strdup("unknown term"); | |
1140 | err->help = strdup("valid terms: call-graph,stack-size\n"); | |
1141 | } | |
1142 | return -EINVAL; | |
1143 | } | |
1144 | ||
1145 | return 0; | |
1146 | } | |
1147 | ||
8f707d84 | 1148 | static int config_attr(struct perf_event_attr *attr, |
3b0e371c | 1149 | struct list_head *head, |
0b8891a8 HK |
1150 | struct parse_events_error *err, |
1151 | config_term_func_t config_term) | |
8f707d84 | 1152 | { |
6cee6cd3 | 1153 | struct parse_events_term *term; |
8f707d84 JO |
1154 | |
1155 | list_for_each_entry(term, head, list) | |
3b0e371c | 1156 | if (config_term(attr, term, err)) |
8f707d84 JO |
1157 | return -EINVAL; |
1158 | ||
1159 | return 0; | |
1160 | } | |
1161 | ||
930a2e29 JO |
1162 | static int get_config_terms(struct list_head *head_config, |
1163 | struct list_head *head_terms __maybe_unused) | |
1164 | { | |
1165 | #define ADD_CONFIG_TERM(__type, __name, __val) \ | |
1166 | do { \ | |
1167 | struct perf_evsel_config_term *__t; \ | |
1168 | \ | |
1169 | __t = zalloc(sizeof(*__t)); \ | |
1170 | if (!__t) \ | |
1171 | return -ENOMEM; \ | |
1172 | \ | |
1173 | INIT_LIST_HEAD(&__t->list); \ | |
1174 | __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \ | |
1175 | __t->val.__name = __val; \ | |
c2f1cead | 1176 | __t->weak = term->weak; \ |
930a2e29 JO |
1177 | list_add_tail(&__t->list, head_terms); \ |
1178 | } while (0) | |
1179 | ||
1180 | struct parse_events_term *term; | |
1181 | ||
1182 | list_for_each_entry(term, head_config, list) { | |
1183 | switch (term->type_term) { | |
ee4c7588 JO |
1184 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
1185 | ADD_CONFIG_TERM(PERIOD, period, term->val.num); | |
32067712 | 1186 | break; |
09af2a55 NK |
1187 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
1188 | ADD_CONFIG_TERM(FREQ, freq, term->val.num); | |
1189 | break; | |
32067712 KL |
1190 | case PARSE_EVENTS__TERM_TYPE_TIME: |
1191 | ADD_CONFIG_TERM(TIME, time, term->val.num); | |
1192 | break; | |
d457c963 KL |
1193 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1194 | ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str); | |
1195 | break; | |
ac12f676 AK |
1196 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
1197 | ADD_CONFIG_TERM(BRANCH, branch, term->val.str); | |
1198 | break; | |
d457c963 KL |
1199 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: |
1200 | ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num); | |
1201 | break; | |
374ce938 WN |
1202 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1203 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0); | |
1204 | break; | |
1205 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1206 | ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1); | |
1207 | break; | |
792d48b4 ACM |
1208 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1209 | ADD_CONFIG_TERM(MAX_STACK, max_stack, term->val.num); | |
1210 | break; | |
2fda5ada ACM |
1211 | case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: |
1212 | ADD_CONFIG_TERM(MAX_EVENTS, max_events, term->val.num); | |
1213 | break; | |
626a6b78 WN |
1214 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1215 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 1 : 0); | |
1216 | break; | |
1217 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1218 | ADD_CONFIG_TERM(OVERWRITE, overwrite, term->val.num ? 0 : 1); | |
1219 | break; | |
dd60fba7 MP |
1220 | case PARSE_EVENTS__TERM_TYPE_DRV_CFG: |
1221 | ADD_CONFIG_TERM(DRV_CFG, drv_cfg, term->val.str); | |
1222 | break; | |
064b4e82 JY |
1223 | case PARSE_EVENTS__TERM_TYPE_PERCORE: |
1224 | ADD_CONFIG_TERM(PERCORE, percore, | |
1225 | term->val.num ? true : false); | |
1226 | break; | |
930a2e29 JO |
1227 | default: |
1228 | break; | |
1229 | } | |
1230 | } | |
1231 | #undef ADD_EVSEL_CONFIG | |
1232 | return 0; | |
1233 | } | |
1234 | ||
e637d177 | 1235 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 1236 | const char *sys, const char *event, |
272ed29a | 1237 | struct parse_events_error *err, |
e637d177 HK |
1238 | struct list_head *head_config) |
1239 | { | |
1240 | if (head_config) { | |
1241 | struct perf_event_attr attr; | |
1242 | ||
272ed29a | 1243 | if (config_attr(&attr, head_config, err, |
e637d177 HK |
1244 | config_term_tracepoint)) |
1245 | return -EINVAL; | |
1246 | } | |
1247 | ||
1248 | if (strpbrk(sys, "*?")) | |
1249 | return add_tracepoint_multi_sys(list, idx, sys, event, | |
272ed29a | 1250 | err, head_config); |
e637d177 HK |
1251 | else |
1252 | return add_tracepoint_event(list, idx, sys, event, | |
272ed29a | 1253 | err, head_config); |
e637d177 HK |
1254 | } |
1255 | ||
5d9cdc11 | 1256 | int parse_events_add_numeric(struct parse_events_state *parse_state, |
87d650be | 1257 | struct list_head *list, |
b527bab5 | 1258 | u32 type, u64 config, |
8f707d84 | 1259 | struct list_head *head_config) |
8ad8db37 | 1260 | { |
89812fc8 | 1261 | struct perf_event_attr attr; |
930a2e29 | 1262 | LIST_HEAD(config_terms); |
61c45981 | 1263 | |
89812fc8 JO |
1264 | memset(&attr, 0, sizeof(attr)); |
1265 | attr.type = type; | |
1266 | attr.config = config; | |
8f707d84 | 1267 | |
930a2e29 | 1268 | if (head_config) { |
5d9cdc11 | 1269 | if (config_attr(&attr, head_config, parse_state->error, |
0b8891a8 | 1270 | config_term_common)) |
930a2e29 JO |
1271 | return -EINVAL; |
1272 | ||
1273 | if (get_config_terms(head_config, &config_terms)) | |
1274 | return -ENOMEM; | |
1275 | } | |
8f707d84 | 1276 | |
5d9cdc11 | 1277 | return add_event(list, &parse_state->idx, &attr, |
10bf358a | 1278 | get_config_name(head_config), &config_terms); |
61c45981 | 1279 | } |
8ad8db37 | 1280 | |
f0fbb114 AK |
1281 | int parse_events_add_tool(struct parse_events_state *parse_state, |
1282 | struct list_head *list, | |
1283 | enum perf_tool_event tool_event) | |
1284 | { | |
1285 | return add_event_tool(list, &parse_state->idx, tool_event); | |
1286 | } | |
1287 | ||
064b4e82 JY |
1288 | static bool config_term_percore(struct list_head *config_terms) |
1289 | { | |
1290 | struct perf_evsel_config_term *term; | |
1291 | ||
1292 | list_for_each_entry(term, config_terms, list) { | |
1293 | if (term->type == PERF_EVSEL__CONFIG_TERM_PERCORE) | |
1294 | return term->val.percore; | |
1295 | } | |
1296 | ||
1297 | return false; | |
1298 | } | |
1299 | ||
c199c11d | 1300 | int parse_events_add_pmu(struct parse_events_state *parse_state, |
36adec85 | 1301 | struct list_head *list, char *name, |
3cdc5c2c KL |
1302 | struct list_head *head_config, |
1303 | bool auto_merge_stats, | |
1304 | bool use_alias) | |
5f537a26 JO |
1305 | { |
1306 | struct perf_event_attr attr; | |
46441bdc | 1307 | struct perf_pmu_info info; |
5f537a26 | 1308 | struct perf_pmu *pmu; |
32dcd021 | 1309 | struct evsel *evsel; |
333b5665 | 1310 | struct parse_events_error *err = parse_state->error; |
3cdc5c2c | 1311 | bool use_uncore_alias; |
930a2e29 | 1312 | LIST_HEAD(config_terms); |
5f537a26 JO |
1313 | |
1314 | pmu = perf_pmu__find(name); | |
333b5665 AK |
1315 | if (!pmu) { |
1316 | if (asprintf(&err->str, | |
1317 | "Cannot find PMU `%s'. Missing kernel support?", | |
1318 | name) < 0) | |
1319 | err->str = NULL; | |
5f537a26 | 1320 | return -EINVAL; |
333b5665 | 1321 | } |
5f537a26 | 1322 | |
dc0a6202 AH |
1323 | if (pmu->default_config) { |
1324 | memcpy(&attr, pmu->default_config, | |
1325 | sizeof(struct perf_event_attr)); | |
1326 | } else { | |
1327 | memset(&attr, 0, sizeof(attr)); | |
1328 | } | |
5f537a26 | 1329 | |
3cdc5c2c KL |
1330 | use_uncore_alias = (pmu->is_uncore && use_alias); |
1331 | ||
ad962273 AH |
1332 | if (!head_config) { |
1333 | attr.type = pmu->type; | |
f0fbb114 AK |
1334 | evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu, NULL, |
1335 | auto_merge_stats, NULL); | |
8c5421c0 AVF |
1336 | if (evsel) { |
1337 | evsel->pmu_name = name; | |
3cdc5c2c | 1338 | evsel->use_uncore_alias = use_uncore_alias; |
8c5421c0 AVF |
1339 | return 0; |
1340 | } else { | |
1341 | return -ENOMEM; | |
1342 | } | |
ad962273 AH |
1343 | } |
1344 | ||
46441bdc | 1345 | if (perf_pmu__check_alias(pmu, head_config, &info)) |
a6146d50 ZY |
1346 | return -EINVAL; |
1347 | ||
5f537a26 JO |
1348 | /* |
1349 | * Configure hardcoded terms first, no need to check | |
1350 | * return value when called with fail == 0 ;) | |
1351 | */ | |
5d9cdc11 | 1352 | if (config_attr(&attr, head_config, parse_state->error, config_term_pmu)) |
c056ba6a | 1353 | return -EINVAL; |
5f537a26 | 1354 | |
930a2e29 JO |
1355 | if (get_config_terms(head_config, &config_terms)) |
1356 | return -ENOMEM; | |
1357 | ||
5d9cdc11 | 1358 | if (perf_pmu__config(pmu, &attr, head_config, parse_state->error)) |
5f537a26 JO |
1359 | return -EINVAL; |
1360 | ||
5d9cdc11 | 1361 | evsel = __add_event(list, &parse_state->idx, &attr, |
66ec1191 | 1362 | get_config_name(head_config), pmu, |
f0fbb114 | 1363 | &config_terms, auto_merge_stats, NULL); |
410136f5 | 1364 | if (evsel) { |
46441bdc MF |
1365 | evsel->unit = info.unit; |
1366 | evsel->scale = info.scale; | |
044330c1 | 1367 | evsel->per_pkg = info.per_pkg; |
1d9e446b | 1368 | evsel->snapshot = info.snapshot; |
37932c18 | 1369 | evsel->metric_expr = info.metric_expr; |
96284814 | 1370 | evsel->metric_name = info.metric_name; |
8c5421c0 | 1371 | evsel->pmu_name = name; |
3cdc5c2c | 1372 | evsel->use_uncore_alias = use_uncore_alias; |
064b4e82 | 1373 | evsel->percore = config_term_percore(&evsel->config_terms); |
410136f5 SE |
1374 | } |
1375 | ||
1376 | return evsel ? 0 : -ENOMEM; | |
5f537a26 JO |
1377 | } |
1378 | ||
5d9cdc11 | 1379 | int parse_events_multi_pmu_add(struct parse_events_state *parse_state, |
2073ad33 AK |
1380 | char *str, struct list_head **listp) |
1381 | { | |
1382 | struct list_head *head; | |
1383 | struct parse_events_term *term; | |
1384 | struct list_head *list; | |
1385 | struct perf_pmu *pmu = NULL; | |
1386 | int ok = 0; | |
1387 | ||
1388 | *listp = NULL; | |
1389 | /* Add it for all PMUs that support the alias */ | |
1390 | list = malloc(sizeof(struct list_head)); | |
1391 | if (!list) | |
1392 | return -1; | |
1393 | INIT_LIST_HEAD(list); | |
1394 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1395 | struct perf_pmu_alias *alias; | |
1396 | ||
1397 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1398 | if (!strcasecmp(alias->name, str)) { | |
1399 | head = malloc(sizeof(struct list_head)); | |
1400 | if (!head) | |
1401 | return -1; | |
1402 | INIT_LIST_HEAD(head); | |
1403 | if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, | |
1404 | str, 1, false, &str, NULL) < 0) | |
1405 | return -1; | |
1406 | list_add_tail(&term->list, head); | |
1407 | ||
c199c11d | 1408 | if (!parse_events_add_pmu(parse_state, list, |
3cdc5c2c KL |
1409 | pmu->name, head, |
1410 | true, true)) { | |
2073ad33 AK |
1411 | pr_debug("%s -> %s/%s/\n", str, |
1412 | pmu->name, alias->str); | |
1413 | ok++; | |
1414 | } | |
1415 | ||
1416 | parse_events_terms__delete(head); | |
1417 | } | |
1418 | } | |
1419 | } | |
1420 | if (!ok) | |
1421 | return -1; | |
1422 | *listp = list; | |
1423 | return 0; | |
1424 | } | |
1425 | ||
6a4bb04c JO |
1426 | int parse_events__modifier_group(struct list_head *list, |
1427 | char *event_mod) | |
89efb029 | 1428 | { |
6a4bb04c JO |
1429 | return parse_events__modifier_event(list, event_mod, true); |
1430 | } | |
1431 | ||
3cdc5c2c KL |
1432 | /* |
1433 | * Check if the two uncore PMUs are from the same uncore block | |
1434 | * The format of the uncore PMU name is uncore_#blockname_#pmuidx | |
1435 | */ | |
1436 | static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b) | |
1437 | { | |
1438 | char *end_a, *end_b; | |
1439 | ||
1440 | end_a = strrchr(pmu_name_a, '_'); | |
1441 | end_b = strrchr(pmu_name_b, '_'); | |
1442 | ||
1443 | if (!end_a || !end_b) | |
1444 | return false; | |
1445 | ||
1446 | if ((end_a - pmu_name_a) != (end_b - pmu_name_b)) | |
1447 | return false; | |
1448 | ||
1449 | return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0); | |
1450 | } | |
1451 | ||
1452 | static int | |
1453 | parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list, | |
1454 | struct parse_events_state *parse_state) | |
1455 | { | |
32dcd021 | 1456 | struct evsel *evsel, *leader; |
3cdc5c2c KL |
1457 | uintptr_t *leaders; |
1458 | bool is_leader = true; | |
1459 | int i, nr_pmu = 0, total_members, ret = 0; | |
1460 | ||
b27c4ece JO |
1461 | leader = list_first_entry(list, struct evsel, core.node); |
1462 | evsel = list_last_entry(list, struct evsel, core.node); | |
3cdc5c2c KL |
1463 | total_members = evsel->idx - leader->idx + 1; |
1464 | ||
1465 | leaders = calloc(total_members, sizeof(uintptr_t)); | |
1466 | if (WARN_ON(!leaders)) | |
1467 | return 0; | |
1468 | ||
1469 | /* | |
1470 | * Going through the whole group and doing sanity check. | |
1471 | * All members must use alias, and be from the same uncore block. | |
1472 | * Also, storing the leader events in an array. | |
1473 | */ | |
1474 | __evlist__for_each_entry(list, evsel) { | |
1475 | ||
1476 | /* Only split the uncore group which members use alias */ | |
1477 | if (!evsel->use_uncore_alias) | |
1478 | goto out; | |
1479 | ||
1480 | /* The events must be from the same uncore block */ | |
1481 | if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name)) | |
1482 | goto out; | |
1483 | ||
1484 | if (!is_leader) | |
1485 | continue; | |
1486 | /* | |
1487 | * If the event's PMU name starts to repeat, it must be a new | |
1488 | * event. That can be used to distinguish the leader from | |
1489 | * other members, even they have the same event name. | |
1490 | */ | |
1491 | if ((leader != evsel) && (leader->pmu_name == evsel->pmu_name)) { | |
1492 | is_leader = false; | |
1493 | continue; | |
1494 | } | |
1495 | /* The name is always alias name */ | |
1496 | WARN_ON(strcmp(leader->name, evsel->name)); | |
1497 | ||
1498 | /* Store the leader event for each PMU */ | |
1499 | leaders[nr_pmu++] = (uintptr_t) evsel; | |
1500 | } | |
1501 | ||
1502 | /* only one event alias */ | |
1503 | if (nr_pmu == total_members) { | |
1504 | parse_state->nr_groups--; | |
1505 | goto handled; | |
1506 | } | |
1507 | ||
1508 | /* | |
1509 | * An uncore event alias is a joint name which means the same event | |
1510 | * runs on all PMUs of a block. | |
1511 | * Perf doesn't support mixed events from different PMUs in the same | |
1512 | * group. The big group has to be split into multiple small groups | |
1513 | * which only include the events from the same PMU. | |
1514 | * | |
1515 | * Here the uncore event aliases must be from the same uncore block. | |
1516 | * The number of PMUs must be same for each alias. The number of new | |
1517 | * small groups equals to the number of PMUs. | |
1518 | * Setting the leader event for corresponding members in each group. | |
1519 | */ | |
1520 | i = 0; | |
1521 | __evlist__for_each_entry(list, evsel) { | |
1522 | if (i >= nr_pmu) | |
1523 | i = 0; | |
32dcd021 | 1524 | evsel->leader = (struct evsel *) leaders[i++]; |
3cdc5c2c KL |
1525 | } |
1526 | ||
1527 | /* The number of members and group name are same for each group */ | |
1528 | for (i = 0; i < nr_pmu; i++) { | |
32dcd021 | 1529 | evsel = (struct evsel *) leaders[i]; |
3cdc5c2c KL |
1530 | evsel->nr_members = total_members / nr_pmu; |
1531 | evsel->group_name = name ? strdup(name) : NULL; | |
1532 | } | |
1533 | ||
1534 | /* Take the new small groups into account */ | |
1535 | parse_state->nr_groups += nr_pmu - 1; | |
1536 | ||
1537 | handled: | |
1538 | ret = 1; | |
1539 | out: | |
1540 | free(leaders); | |
1541 | return ret; | |
1542 | } | |
1543 | ||
1544 | void parse_events__set_leader(char *name, struct list_head *list, | |
1545 | struct parse_events_state *parse_state) | |
6a4bb04c | 1546 | { |
32dcd021 | 1547 | struct evsel *leader; |
6a4bb04c | 1548 | |
854f7363 WN |
1549 | if (list_empty(list)) { |
1550 | WARN_ONCE(true, "WARNING: failed to set leader: empty list"); | |
1551 | return; | |
1552 | } | |
1553 | ||
3cdc5c2c KL |
1554 | if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state)) |
1555 | return; | |
1556 | ||
63dab225 | 1557 | __perf_evlist__set_leader(list); |
b27c4ece | 1558 | leader = list_entry(list->next, struct evsel, core.node); |
6a4bb04c | 1559 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
1560 | } |
1561 | ||
c5cd8ac0 | 1562 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
1563 | void parse_events_update_lists(struct list_head *list_event, |
1564 | struct list_head *list_all) | |
1565 | { | |
1566 | /* | |
1567 | * Called for single event definition. Update the | |
89efb029 | 1568 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
1569 | * list, for next event definition. |
1570 | */ | |
1571 | list_splice_tail(list_event, list_all); | |
b847cbdc | 1572 | free(list_event); |
5d7be90e JO |
1573 | } |
1574 | ||
f5b1135b JO |
1575 | struct event_modifier { |
1576 | int eu; | |
1577 | int ek; | |
1578 | int eh; | |
1579 | int eH; | |
1580 | int eG; | |
a1e12da4 | 1581 | int eI; |
f5b1135b | 1582 | int precise; |
7f94af7a | 1583 | int precise_max; |
f5b1135b | 1584 | int exclude_GH; |
3c176311 | 1585 | int sample_read; |
e9a7c414 | 1586 | int pinned; |
5a5dfe4b | 1587 | int weak; |
f5b1135b JO |
1588 | }; |
1589 | ||
1590 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
32dcd021 | 1591 | struct evsel *evsel) |
61c45981 | 1592 | { |
f5b1135b JO |
1593 | int eu = evsel ? evsel->attr.exclude_user : 0; |
1594 | int ek = evsel ? evsel->attr.exclude_kernel : 0; | |
1595 | int eh = evsel ? evsel->attr.exclude_hv : 0; | |
1596 | int eH = evsel ? evsel->attr.exclude_host : 0; | |
1597 | int eG = evsel ? evsel->attr.exclude_guest : 0; | |
a1e12da4 | 1598 | int eI = evsel ? evsel->attr.exclude_idle : 0; |
f5b1135b | 1599 | int precise = evsel ? evsel->attr.precise_ip : 0; |
7f94af7a | 1600 | int precise_max = 0; |
3c176311 | 1601 | int sample_read = 0; |
e9a7c414 | 1602 | int pinned = evsel ? evsel->attr.pinned : 0; |
a21ca2ca | 1603 | |
f5b1135b JO |
1604 | int exclude = eu | ek | eh; |
1605 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
5a5dfe4b | 1606 | int weak = 0; |
f5b1135b | 1607 | |
f5b1135b | 1608 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 1609 | |
61c45981 | 1610 | while (*str) { |
ab608344 PZ |
1611 | if (*str == 'u') { |
1612 | if (!exclude) | |
1613 | exclude = eu = ek = eh = 1; | |
61c45981 | 1614 | eu = 0; |
ab608344 PZ |
1615 | } else if (*str == 'k') { |
1616 | if (!exclude) | |
1617 | exclude = eu = ek = eh = 1; | |
61c45981 | 1618 | ek = 0; |
ab608344 PZ |
1619 | } else if (*str == 'h') { |
1620 | if (!exclude) | |
1621 | exclude = eu = ek = eh = 1; | |
61c45981 | 1622 | eh = 0; |
99320cc8 JR |
1623 | } else if (*str == 'G') { |
1624 | if (!exclude_GH) | |
1625 | exclude_GH = eG = eH = 1; | |
1626 | eG = 0; | |
1627 | } else if (*str == 'H') { | |
1628 | if (!exclude_GH) | |
1629 | exclude_GH = eG = eH = 1; | |
1630 | eH = 0; | |
a1e12da4 JO |
1631 | } else if (*str == 'I') { |
1632 | eI = 1; | |
ab608344 PZ |
1633 | } else if (*str == 'p') { |
1634 | precise++; | |
1342798c DA |
1635 | /* use of precise requires exclude_guest */ |
1636 | if (!exclude_GH) | |
1637 | eG = 1; | |
7f94af7a JO |
1638 | } else if (*str == 'P') { |
1639 | precise_max = 1; | |
3c176311 JO |
1640 | } else if (*str == 'S') { |
1641 | sample_read = 1; | |
e9a7c414 ME |
1642 | } else if (*str == 'D') { |
1643 | pinned = 1; | |
5a5dfe4b AK |
1644 | } else if (*str == 'W') { |
1645 | weak = 1; | |
ab608344 | 1646 | } else |
61c45981 | 1647 | break; |
ab608344 | 1648 | |
61c45981 | 1649 | ++str; |
5242519b | 1650 | } |
ceb53fbf | 1651 | |
89812fc8 JO |
1652 | /* |
1653 | * precise ip: | |
1654 | * | |
1655 | * 0 - SAMPLE_IP can have arbitrary skid | |
1656 | * 1 - SAMPLE_IP must have constant skid | |
1657 | * 2 - SAMPLE_IP requested to have 0 skid | |
1658 | * 3 - SAMPLE_IP must have 0 skid | |
1659 | * | |
1660 | * See also PERF_RECORD_MISC_EXACT_IP | |
1661 | */ | |
1662 | if (precise > 3) | |
1663 | return -EINVAL; | |
ceb53fbf | 1664 | |
f5b1135b JO |
1665 | mod->eu = eu; |
1666 | mod->ek = ek; | |
1667 | mod->eh = eh; | |
1668 | mod->eH = eH; | |
1669 | mod->eG = eG; | |
a1e12da4 | 1670 | mod->eI = eI; |
f5b1135b | 1671 | mod->precise = precise; |
7f94af7a | 1672 | mod->precise_max = precise_max; |
f5b1135b | 1673 | mod->exclude_GH = exclude_GH; |
3c176311 | 1674 | mod->sample_read = sample_read; |
e9a7c414 | 1675 | mod->pinned = pinned; |
5a5dfe4b | 1676 | mod->weak = weak; |
e9a7c414 | 1677 | |
f5b1135b JO |
1678 | return 0; |
1679 | } | |
1680 | ||
534123f4 JO |
1681 | /* |
1682 | * Basic modifier sanity check to validate it contains only one | |
1683 | * instance of any modifier (apart from 'p') present. | |
1684 | */ | |
1685 | static int check_modifier(char *str) | |
1686 | { | |
1687 | char *p = str; | |
1688 | ||
1689 | /* The sizeof includes 0 byte as well. */ | |
5a5dfe4b | 1690 | if (strlen(str) > (sizeof("ukhGHpppPSDIW") - 1)) |
534123f4 JO |
1691 | return -1; |
1692 | ||
1693 | while (*p) { | |
1694 | if (*p != 'p' && strchr(p + 1, *p)) | |
1695 | return -1; | |
1696 | p++; | |
1697 | } | |
1698 | ||
1699 | return 0; | |
1700 | } | |
1701 | ||
f5b1135b JO |
1702 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
1703 | { | |
32dcd021 | 1704 | struct evsel *evsel; |
f5b1135b JO |
1705 | struct event_modifier mod; |
1706 | ||
1707 | if (str == NULL) | |
1708 | return 0; | |
1709 | ||
534123f4 JO |
1710 | if (check_modifier(str)) |
1711 | return -EINVAL; | |
1712 | ||
f5b1135b JO |
1713 | if (!add && get_event_modifier(&mod, str, NULL)) |
1714 | return -EINVAL; | |
1715 | ||
e5cadb93 | 1716 | __evlist__for_each_entry(list, evsel) { |
f5b1135b JO |
1717 | if (add && get_event_modifier(&mod, str, evsel)) |
1718 | return -EINVAL; | |
1719 | ||
1720 | evsel->attr.exclude_user = mod.eu; | |
1721 | evsel->attr.exclude_kernel = mod.ek; | |
1722 | evsel->attr.exclude_hv = mod.eh; | |
1723 | evsel->attr.precise_ip = mod.precise; | |
1724 | evsel->attr.exclude_host = mod.eH; | |
1725 | evsel->attr.exclude_guest = mod.eG; | |
a1e12da4 | 1726 | evsel->attr.exclude_idle = mod.eI; |
f5b1135b | 1727 | evsel->exclude_GH = mod.exclude_GH; |
3c176311 | 1728 | evsel->sample_read = mod.sample_read; |
7f94af7a | 1729 | evsel->precise_max = mod.precise_max; |
5a5dfe4b | 1730 | evsel->weak_group = mod.weak; |
e9a7c414 ME |
1731 | |
1732 | if (perf_evsel__is_group_leader(evsel)) | |
1733 | evsel->attr.pinned = mod.pinned; | |
89812fc8 | 1734 | } |
ceb53fbf | 1735 | |
61c45981 PM |
1736 | return 0; |
1737 | } | |
8ad8db37 | 1738 | |
ac2ba9f3 RR |
1739 | int parse_events_name(struct list_head *list, char *name) |
1740 | { | |
32dcd021 | 1741 | struct evsel *evsel; |
ac2ba9f3 | 1742 | |
e5cadb93 | 1743 | __evlist__for_each_entry(list, evsel) { |
ac2ba9f3 RR |
1744 | if (!evsel->name) |
1745 | evsel->name = strdup(name); | |
1746 | } | |
1747 | ||
1748 | return 0; | |
1749 | } | |
1750 | ||
dcb4e102 KL |
1751 | static int |
1752 | comp_pmu(const void *p1, const void *p2) | |
1753 | { | |
1754 | struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1; | |
1755 | struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2; | |
1756 | ||
e312bcf1 | 1757 | return strcasecmp(pmu1->symbol, pmu2->symbol); |
dcb4e102 KL |
1758 | } |
1759 | ||
1760 | static void perf_pmu__parse_cleanup(void) | |
1761 | { | |
1762 | if (perf_pmu_events_list_num > 0) { | |
1763 | struct perf_pmu_event_symbol *p; | |
1764 | int i; | |
1765 | ||
1766 | for (i = 0; i < perf_pmu_events_list_num; i++) { | |
1767 | p = perf_pmu_events_list + i; | |
360e071b | 1768 | zfree(&p->symbol); |
dcb4e102 | 1769 | } |
506fde11 | 1770 | zfree(&perf_pmu_events_list); |
dcb4e102 KL |
1771 | perf_pmu_events_list_num = 0; |
1772 | } | |
1773 | } | |
1774 | ||
1775 | #define SET_SYMBOL(str, stype) \ | |
1776 | do { \ | |
1777 | p->symbol = str; \ | |
1778 | if (!p->symbol) \ | |
1779 | goto err; \ | |
1780 | p->type = stype; \ | |
1781 | } while (0) | |
1782 | ||
1783 | /* | |
1784 | * Read the pmu events list from sysfs | |
1785 | * Save it into perf_pmu_events_list | |
1786 | */ | |
1787 | static void perf_pmu__parse_init(void) | |
1788 | { | |
1789 | ||
1790 | struct perf_pmu *pmu = NULL; | |
1791 | struct perf_pmu_alias *alias; | |
1792 | int len = 0; | |
1793 | ||
231bb2aa AK |
1794 | pmu = NULL; |
1795 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1796 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1797 | if (strchr(alias->name, '-')) | |
1798 | len++; | |
1799 | len++; | |
1800 | } | |
1801 | } | |
1802 | ||
1803 | if (len == 0) { | |
dcb4e102 KL |
1804 | perf_pmu_events_list_num = -1; |
1805 | return; | |
1806 | } | |
dcb4e102 KL |
1807 | perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len); |
1808 | if (!perf_pmu_events_list) | |
1809 | return; | |
1810 | perf_pmu_events_list_num = len; | |
1811 | ||
1812 | len = 0; | |
231bb2aa AK |
1813 | pmu = NULL; |
1814 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1815 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1816 | struct perf_pmu_event_symbol *p = perf_pmu_events_list + len; | |
1817 | char *tmp = strchr(alias->name, '-'); | |
1818 | ||
1819 | if (tmp != NULL) { | |
1820 | SET_SYMBOL(strndup(alias->name, tmp - alias->name), | |
1821 | PMU_EVENT_SYMBOL_PREFIX); | |
1822 | p++; | |
1823 | SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX); | |
1824 | len += 2; | |
1825 | } else { | |
1826 | SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL); | |
1827 | len++; | |
1828 | } | |
dcb4e102 KL |
1829 | } |
1830 | } | |
1831 | qsort(perf_pmu_events_list, len, | |
1832 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
1833 | ||
1834 | return; | |
1835 | err: | |
1836 | perf_pmu__parse_cleanup(); | |
1837 | } | |
1838 | ||
1839 | enum perf_pmu_event_symbol_type | |
1840 | perf_pmu__parse_check(const char *name) | |
1841 | { | |
1842 | struct perf_pmu_event_symbol p, *r; | |
1843 | ||
1844 | /* scan kernel pmu events from sysfs if needed */ | |
1845 | if (perf_pmu_events_list_num == 0) | |
1846 | perf_pmu__parse_init(); | |
1847 | /* | |
1848 | * name "cpu" could be prefix of cpu-cycles or cpu// events. | |
1849 | * cpu-cycles has been handled by hardcode. | |
1850 | * So it must be cpu// events, not kernel pmu event. | |
1851 | */ | |
1852 | if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu")) | |
1853 | return PMU_EVENT_SYMBOL_ERR; | |
1854 | ||
1855 | p.symbol = strdup(name); | |
1856 | r = bsearch(&p, perf_pmu_events_list, | |
1857 | (size_t) perf_pmu_events_list_num, | |
1858 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
360e071b | 1859 | zfree(&p.symbol); |
dcb4e102 KL |
1860 | return r ? r->type : PMU_EVENT_SYMBOL_ERR; |
1861 | } | |
1862 | ||
5d9cdc11 | 1863 | static int parse_events__scanner(const char *str, void *parse_state, int start_token) |
61c45981 | 1864 | { |
89812fc8 | 1865 | YY_BUFFER_STATE buffer; |
ac20de6f | 1866 | void *scanner; |
46010ab2 | 1867 | int ret; |
bcd3279f | 1868 | |
90e2b22d | 1869 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
1870 | if (ret) |
1871 | return ret; | |
1872 | ||
1873 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 1874 | |
82ba1f2f JO |
1875 | #ifdef PARSER_DEBUG |
1876 | parse_events_debug = 1; | |
1877 | #endif | |
5d9cdc11 | 1878 | ret = parse_events_parse(parse_state, scanner); |
ac20de6f ZY |
1879 | |
1880 | parse_events__flush_buffer(buffer, scanner); | |
1881 | parse_events__delete_buffer(buffer, scanner); | |
1882 | parse_events_lex_destroy(scanner); | |
1883 | return ret; | |
1884 | } | |
bcd3279f | 1885 | |
90e2b22d JO |
1886 | /* |
1887 | * parse event config string, return a list of event terms. | |
1888 | */ | |
1889 | int parse_events_terms(struct list_head *terms, const char *str) | |
1890 | { | |
5d9cdc11 | 1891 | struct parse_events_state parse_state = { |
90e2b22d JO |
1892 | .terms = NULL, |
1893 | }; | |
1894 | int ret; | |
1895 | ||
5d9cdc11 | 1896 | ret = parse_events__scanner(str, &parse_state, PE_START_TERMS); |
90e2b22d | 1897 | if (!ret) { |
5d9cdc11 ACM |
1898 | list_splice(parse_state.terms, terms); |
1899 | zfree(&parse_state.terms); | |
90e2b22d JO |
1900 | return 0; |
1901 | } | |
1902 | ||
5d9cdc11 | 1903 | parse_events_terms__delete(parse_state.terms); |
90e2b22d JO |
1904 | return ret; |
1905 | } | |
1906 | ||
63503dba | 1907 | int parse_events(struct evlist *evlist, const char *str, |
b39b8393 | 1908 | struct parse_events_error *err) |
ac20de6f | 1909 | { |
5d9cdc11 ACM |
1910 | struct parse_events_state parse_state = { |
1911 | .list = LIST_HEAD_INIT(parse_state.list), | |
6484d2f9 | 1912 | .idx = evlist->core.nr_entries, |
7630b3e2 WN |
1913 | .error = err, |
1914 | .evlist = evlist, | |
ac20de6f ZY |
1915 | }; |
1916 | int ret; | |
bcd3279f | 1917 | |
5d9cdc11 | 1918 | ret = parse_events__scanner(str, &parse_state, PE_START_EVENTS); |
dcb4e102 | 1919 | perf_pmu__parse_cleanup(); |
89812fc8 | 1920 | if (!ret) { |
32dcd021 | 1921 | struct evsel *last; |
15bfd2cc | 1922 | |
5d9cdc11 | 1923 | if (list_empty(&parse_state.list)) { |
c23080a6 | 1924 | WARN_ONCE(true, "WARNING: event parser found nothing\n"); |
854f7363 WN |
1925 | return -1; |
1926 | } | |
1927 | ||
5d9cdc11 ACM |
1928 | perf_evlist__splice_list_tail(evlist, &parse_state.list); |
1929 | evlist->nr_groups += parse_state.nr_groups; | |
15bfd2cc WN |
1930 | last = perf_evlist__last(evlist); |
1931 | last->cmdline_group_boundary = true; | |
1932 | ||
89812fc8 JO |
1933 | return 0; |
1934 | } | |
bcd3279f | 1935 | |
5d7be90e JO |
1936 | /* |
1937 | * There are 2 users - builtin-record and builtin-test objects. | |
c12995a5 | 1938 | * Both call evlist__delete in case of error, so we dont |
5d7be90e JO |
1939 | * need to bother. |
1940 | */ | |
bcd3279f | 1941 | return ret; |
8ad8db37 IM |
1942 | } |
1943 | ||
b39b8393 JO |
1944 | #define MAX_WIDTH 1000 |
1945 | static int get_term_width(void) | |
1946 | { | |
1947 | struct winsize ws; | |
1948 | ||
1949 | get_term_dimensions(&ws); | |
1950 | return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col; | |
1951 | } | |
1952 | ||
333b5665 AK |
1953 | void parse_events_print_error(struct parse_events_error *err, |
1954 | const char *event) | |
b39b8393 JO |
1955 | { |
1956 | const char *str = "invalid or unsupported event: "; | |
1957 | char _buf[MAX_WIDTH]; | |
1958 | char *buf = (char *) event; | |
1959 | int idx = 0; | |
1960 | ||
1961 | if (err->str) { | |
1962 | /* -2 for extra '' in the final fprintf */ | |
1963 | int width = get_term_width() - 2; | |
1964 | int len_event = strlen(event); | |
1965 | int len_str, max_len, cut = 0; | |
1966 | ||
1967 | /* | |
1968 | * Maximum error index indent, we will cut | |
1969 | * the event string if it's bigger. | |
1970 | */ | |
141b2d31 | 1971 | int max_err_idx = 13; |
b39b8393 JO |
1972 | |
1973 | /* | |
1974 | * Let's be specific with the message when | |
1975 | * we have the precise error. | |
1976 | */ | |
1977 | str = "event syntax error: "; | |
1978 | len_str = strlen(str); | |
1979 | max_len = width - len_str; | |
1980 | ||
1981 | buf = _buf; | |
1982 | ||
bd1a0be5 | 1983 | /* We're cutting from the beginning. */ |
b39b8393 JO |
1984 | if (err->idx > max_err_idx) |
1985 | cut = err->idx - max_err_idx; | |
1986 | ||
1987 | strncpy(buf, event + cut, max_len); | |
1988 | ||
1989 | /* Mark cut parts with '..' on both sides. */ | |
1990 | if (cut) | |
1991 | buf[0] = buf[1] = '.'; | |
1992 | ||
1993 | if ((len_event - cut) > max_len) { | |
1994 | buf[max_len - 1] = buf[max_len - 2] = '.'; | |
1995 | buf[max_len] = 0; | |
1996 | } | |
1997 | ||
1998 | idx = len_str + err->idx - cut; | |
1999 | } | |
2000 | ||
2001 | fprintf(stderr, "%s'%s'\n", str, buf); | |
2002 | if (idx) { | |
2003 | fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str); | |
2004 | if (err->help) | |
2005 | fprintf(stderr, "\n%s\n", err->help); | |
360e071b TS |
2006 | zfree(&err->str); |
2007 | zfree(&err->help); | |
b39b8393 | 2008 | } |
b39b8393 JO |
2009 | } |
2010 | ||
2011 | #undef MAX_WIDTH | |
2012 | ||
f120f9d5 | 2013 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 2014 | int unset __maybe_unused) |
f120f9d5 | 2015 | { |
63503dba | 2016 | struct evlist *evlist = *(struct evlist **)opt->value; |
b39b8393 JO |
2017 | struct parse_events_error err = { .idx = 0, }; |
2018 | int ret = parse_events(evlist, str, &err); | |
2019 | ||
333b5665 | 2020 | if (ret) { |
b39b8393 | 2021 | parse_events_print_error(&err, str); |
333b5665 AK |
2022 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); |
2023 | } | |
9175ce1f | 2024 | |
9175ce1f | 2025 | return ret; |
f120f9d5 JO |
2026 | } |
2027 | ||
4ba1faa1 | 2028 | static int |
63503dba | 2029 | foreach_evsel_in_last_glob(struct evlist *evlist, |
32dcd021 | 2030 | int (*func)(struct evsel *evsel, |
4ba1faa1 WN |
2031 | const void *arg), |
2032 | const void *arg) | |
c171b552 | 2033 | { |
32dcd021 | 2034 | struct evsel *last = NULL; |
4ba1faa1 | 2035 | int err; |
c171b552 | 2036 | |
854f7363 WN |
2037 | /* |
2038 | * Don't return when list_empty, give func a chance to report | |
2039 | * error when it found last == NULL. | |
2040 | * | |
2041 | * So no need to WARN here, let *func do this. | |
2042 | */ | |
6484d2f9 | 2043 | if (evlist->core.nr_entries > 0) |
0c21f736 | 2044 | last = perf_evlist__last(evlist); |
69aad6f1 | 2045 | |
15bfd2cc | 2046 | do { |
4ba1faa1 WN |
2047 | err = (*func)(last, arg); |
2048 | if (err) | |
15bfd2cc | 2049 | return -1; |
4ba1faa1 WN |
2050 | if (!last) |
2051 | return 0; | |
15bfd2cc | 2052 | |
ce9036a6 | 2053 | if (last->core.node.prev == &evlist->core.entries) |
15bfd2cc | 2054 | return 0; |
b27c4ece | 2055 | last = list_entry(last->core.node.prev, struct evsel, core.node); |
15bfd2cc | 2056 | } while (!last->cmdline_group_boundary); |
c171b552 LZ |
2057 | |
2058 | return 0; | |
2059 | } | |
2060 | ||
32dcd021 | 2061 | static int set_filter(struct evsel *evsel, const void *arg) |
4ba1faa1 WN |
2062 | { |
2063 | const char *str = arg; | |
1e857484 MP |
2064 | bool found = false; |
2065 | int nr_addr_filters = 0; | |
2066 | struct perf_pmu *pmu = NULL; | |
4ba1faa1 | 2067 | |
49836f78 JH |
2068 | if (evsel == NULL) { |
2069 | fprintf(stderr, | |
2070 | "--filter option should follow a -e tracepoint or HW tracer option\n"); | |
2071 | return -1; | |
2072 | } | |
1e857484 MP |
2073 | |
2074 | if (evsel->attr.type == PERF_TYPE_TRACEPOINT) { | |
2075 | if (perf_evsel__append_tp_filter(evsel, str) < 0) { | |
2076 | fprintf(stderr, | |
2077 | "not enough memory to hold filter string\n"); | |
2078 | return -1; | |
2079 | } | |
2080 | ||
2081 | return 0; | |
4ba1faa1 WN |
2082 | } |
2083 | ||
1e857484 MP |
2084 | while ((pmu = perf_pmu__scan(pmu)) != NULL) |
2085 | if (pmu->type == evsel->attr.type) { | |
2086 | found = true; | |
2087 | break; | |
2088 | } | |
2089 | ||
2090 | if (found) | |
2091 | perf_pmu__scan_file(pmu, "nr_addr_filters", | |
2092 | "%d", &nr_addr_filters); | |
2093 | ||
49836f78 JH |
2094 | if (!nr_addr_filters) { |
2095 | fprintf(stderr, | |
2096 | "This CPU does not support address filtering\n"); | |
2097 | return -1; | |
2098 | } | |
1e857484 MP |
2099 | |
2100 | if (perf_evsel__append_addr_filter(evsel, str) < 0) { | |
4ba1faa1 WN |
2101 | fprintf(stderr, |
2102 | "not enough memory to hold filter string\n"); | |
2103 | return -1; | |
2104 | } | |
2105 | ||
2106 | return 0; | |
2107 | } | |
2108 | ||
2109 | int parse_filter(const struct option *opt, const char *str, | |
2110 | int unset __maybe_unused) | |
2111 | { | |
63503dba | 2112 | struct evlist *evlist = *(struct evlist **)opt->value; |
4ba1faa1 WN |
2113 | |
2114 | return foreach_evsel_in_last_glob(evlist, set_filter, | |
2115 | (const void *)str); | |
2116 | } | |
2117 | ||
32dcd021 | 2118 | static int add_exclude_perf_filter(struct evsel *evsel, |
4ba1faa1 WN |
2119 | const void *arg __maybe_unused) |
2120 | { | |
2121 | char new_filter[64]; | |
2122 | ||
2123 | if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) { | |
2124 | fprintf(stderr, | |
2125 | "--exclude-perf option should follow a -e tracepoint option\n"); | |
2126 | return -1; | |
2127 | } | |
2128 | ||
2129 | snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid()); | |
2130 | ||
3541c034 | 2131 | if (perf_evsel__append_tp_filter(evsel, new_filter) < 0) { |
4ba1faa1 WN |
2132 | fprintf(stderr, |
2133 | "not enough memory to hold filter string\n"); | |
2134 | return -1; | |
2135 | } | |
2136 | ||
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | int exclude_perf(const struct option *opt, | |
2141 | const char *arg __maybe_unused, | |
2142 | int unset __maybe_unused) | |
2143 | { | |
63503dba | 2144 | struct evlist *evlist = *(struct evlist **)opt->value; |
4ba1faa1 WN |
2145 | |
2146 | return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter, | |
2147 | NULL); | |
2148 | } | |
2149 | ||
86847b62 | 2150 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
2151 | "Hardware event", |
2152 | "Software event", | |
2153 | "Tracepoint event", | |
2154 | "Hardware cache event", | |
41bdcb23 LW |
2155 | "Raw hardware event descriptor", |
2156 | "Hardware breakpoint", | |
86847b62 TG |
2157 | }; |
2158 | ||
ab0e4800 YS |
2159 | static int cmp_string(const void *a, const void *b) |
2160 | { | |
2161 | const char * const *as = a; | |
2162 | const char * const *bs = b; | |
2163 | ||
2164 | return strcmp(*as, *bs); | |
2165 | } | |
2166 | ||
f6bdafef JB |
2167 | /* |
2168 | * Print the events from <debugfs_mount_point>/tracing/events | |
2169 | */ | |
2170 | ||
a3277d2d FW |
2171 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
2172 | bool name_only) | |
f6bdafef JB |
2173 | { |
2174 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 2175 | struct dirent *sys_dirent, *evt_dirent; |
f6bdafef | 2176 | char evt_path[MAXPATHLEN]; |
25a7d914 | 2177 | char *dir_path; |
ab0e4800 YS |
2178 | char **evt_list = NULL; |
2179 | unsigned int evt_i = 0, evt_num = 0; | |
2180 | bool evt_num_known = false; | |
f6bdafef | 2181 | |
ab0e4800 | 2182 | restart: |
7014e0e3 | 2183 | sys_dir = tracing_events__opendir(); |
f6bdafef | 2184 | if (!sys_dir) |
725b1368 | 2185 | return; |
6b58e7f1 | 2186 | |
ab0e4800 YS |
2187 | if (evt_num_known) { |
2188 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2189 | if (!evt_list) | |
2190 | goto out_close_sys_dir; | |
2191 | } | |
2192 | ||
22a9f41b | 2193 | for_each_subsystem(sys_dir, sys_dirent) { |
48000a1a | 2194 | if (subsys_glob != NULL && |
22a9f41b | 2195 | !strglobmatch(sys_dirent->d_name, subsys_glob)) |
668b8788 | 2196 | continue; |
725b1368 | 2197 | |
25a7d914 ACM |
2198 | dir_path = get_events_file(sys_dirent->d_name); |
2199 | if (!dir_path) | |
2200 | continue; | |
725b1368 ED |
2201 | evt_dir = opendir(dir_path); |
2202 | if (!evt_dir) | |
25a7d914 | 2203 | goto next; |
725b1368 | 2204 | |
c02cab22 | 2205 | for_each_event(dir_path, evt_dir, evt_dirent) { |
48000a1a | 2206 | if (event_glob != NULL && |
22a9f41b | 2207 | !strglobmatch(evt_dirent->d_name, event_glob)) |
668b8788 ACM |
2208 | continue; |
2209 | ||
ab0e4800 YS |
2210 | if (!evt_num_known) { |
2211 | evt_num++; | |
a3277d2d FW |
2212 | continue; |
2213 | } | |
2214 | ||
f6bdafef | 2215 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2216 | sys_dirent->d_name, evt_dirent->d_name); |
ab0e4800 YS |
2217 | |
2218 | evt_list[evt_i] = strdup(evt_path); | |
25a7d914 ACM |
2219 | if (evt_list[evt_i] == NULL) { |
2220 | put_events_file(dir_path); | |
ab0e4800 | 2221 | goto out_close_evt_dir; |
25a7d914 | 2222 | } |
ab0e4800 | 2223 | evt_i++; |
f6bdafef JB |
2224 | } |
2225 | closedir(evt_dir); | |
25a7d914 ACM |
2226 | next: |
2227 | put_events_file(dir_path); | |
f6bdafef | 2228 | } |
f6bdafef | 2229 | closedir(sys_dir); |
ab0e4800 YS |
2230 | |
2231 | if (!evt_num_known) { | |
2232 | evt_num_known = true; | |
2233 | goto restart; | |
2234 | } | |
2235 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2236 | evt_i = 0; | |
2237 | while (evt_i < evt_num) { | |
2238 | if (name_only) { | |
2239 | printf("%s ", evt_list[evt_i++]); | |
2240 | continue; | |
2241 | } | |
2242 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2243 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2244 | } | |
dfc431cb | 2245 | if (evt_num && pager_in_use()) |
ab0e4800 YS |
2246 | printf("\n"); |
2247 | ||
2248 | out_free: | |
2249 | evt_num = evt_i; | |
2250 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2251 | zfree(&evt_list[evt_i]); | |
2252 | zfree(&evt_list); | |
2253 | return; | |
2254 | ||
2255 | out_close_evt_dir: | |
2256 | closedir(evt_dir); | |
2257 | out_close_sys_dir: | |
2258 | closedir(sys_dir); | |
2259 | ||
2260 | printf("FATAL: not enough memory to print %s\n", | |
2261 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2262 | if (evt_list) | |
2263 | goto out_free; | |
f6bdafef JB |
2264 | } |
2265 | ||
20c457b8 TR |
2266 | /* |
2267 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
2268 | */ | |
2269 | ||
2270 | int is_valid_tracepoint(const char *event_string) | |
2271 | { | |
2272 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 2273 | struct dirent *sys_dirent, *evt_dirent; |
20c457b8 | 2274 | char evt_path[MAXPATHLEN]; |
25a7d914 | 2275 | char *dir_path; |
20c457b8 | 2276 | |
7014e0e3 | 2277 | sys_dir = tracing_events__opendir(); |
20c457b8 TR |
2278 | if (!sys_dir) |
2279 | return 0; | |
2280 | ||
22a9f41b | 2281 | for_each_subsystem(sys_dir, sys_dirent) { |
25a7d914 ACM |
2282 | dir_path = get_events_file(sys_dirent->d_name); |
2283 | if (!dir_path) | |
2284 | continue; | |
20c457b8 TR |
2285 | evt_dir = opendir(dir_path); |
2286 | if (!evt_dir) | |
25a7d914 | 2287 | goto next; |
20c457b8 | 2288 | |
c02cab22 | 2289 | for_each_event(dir_path, evt_dir, evt_dirent) { |
20c457b8 | 2290 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2291 | sys_dirent->d_name, evt_dirent->d_name); |
20c457b8 TR |
2292 | if (!strcmp(evt_path, event_string)) { |
2293 | closedir(evt_dir); | |
2294 | closedir(sys_dir); | |
2295 | return 1; | |
2296 | } | |
2297 | } | |
2298 | closedir(evt_dir); | |
25a7d914 ACM |
2299 | next: |
2300 | put_events_file(dir_path); | |
20c457b8 TR |
2301 | } |
2302 | closedir(sys_dir); | |
2303 | return 0; | |
2304 | } | |
2305 | ||
b41f1cec NK |
2306 | static bool is_event_supported(u8 type, unsigned config) |
2307 | { | |
2308 | bool ret = true; | |
88fee52e | 2309 | int open_return; |
32dcd021 | 2310 | struct evsel *evsel; |
b41f1cec NK |
2311 | struct perf_event_attr attr = { |
2312 | .type = type, | |
2313 | .config = config, | |
2314 | .disabled = 1, | |
b41f1cec | 2315 | }; |
9749b90e | 2316 | struct perf_thread_map *tmap = thread_map__new_by_tid(0); |
89896051 ACM |
2317 | |
2318 | if (tmap == NULL) | |
2319 | return false; | |
b41f1cec | 2320 | |
365c3ae7 | 2321 | evsel = evsel__new(&attr); |
b41f1cec | 2322 | if (evsel) { |
5972d1e0 | 2323 | open_return = evsel__open(evsel, NULL, tmap); |
88fee52e VW |
2324 | ret = open_return >= 0; |
2325 | ||
2326 | if (open_return == -EACCES) { | |
2327 | /* | |
2328 | * This happens if the paranoid value | |
2329 | * /proc/sys/kernel/perf_event_paranoid is set to 2 | |
2330 | * Re-run with exclude_kernel set; we don't do that | |
2331 | * by default as some ARM machines do not support it. | |
2332 | * | |
2333 | */ | |
2334 | evsel->attr.exclude_kernel = 1; | |
5972d1e0 | 2335 | ret = evsel__open(evsel, NULL, tmap) >= 0; |
88fee52e | 2336 | } |
5eb2dd2a | 2337 | evsel__delete(evsel); |
b41f1cec NK |
2338 | } |
2339 | ||
7836e52e | 2340 | perf_thread_map__put(tmap); |
b41f1cec NK |
2341 | return ret; |
2342 | } | |
2343 | ||
40218dae MH |
2344 | void print_sdt_events(const char *subsys_glob, const char *event_glob, |
2345 | bool name_only) | |
2346 | { | |
2347 | struct probe_cache *pcache; | |
2348 | struct probe_cache_entry *ent; | |
2349 | struct strlist *bidlist, *sdtlist; | |
2350 | struct strlist_config cfg = {.dont_dupstr = true}; | |
2351 | struct str_node *nd, *nd2; | |
2352 | char *buf, *path, *ptr = NULL; | |
2353 | bool show_detail = false; | |
2354 | int ret; | |
2355 | ||
2356 | sdtlist = strlist__new(NULL, &cfg); | |
2357 | if (!sdtlist) { | |
2358 | pr_debug("Failed to allocate new strlist for SDT\n"); | |
2359 | return; | |
2360 | } | |
2361 | bidlist = build_id_cache__list_all(true); | |
2362 | if (!bidlist) { | |
2363 | pr_debug("Failed to get buildids: %d\n", errno); | |
2364 | return; | |
2365 | } | |
2366 | strlist__for_each_entry(nd, bidlist) { | |
f045b8c4 | 2367 | pcache = probe_cache__new(nd->s, NULL); |
40218dae MH |
2368 | if (!pcache) |
2369 | continue; | |
2370 | list_for_each_entry(ent, &pcache->entries, node) { | |
2371 | if (!ent->sdt) | |
2372 | continue; | |
2373 | if (subsys_glob && | |
2374 | !strglobmatch(ent->pev.group, subsys_glob)) | |
2375 | continue; | |
2376 | if (event_glob && | |
2377 | !strglobmatch(ent->pev.event, event_glob)) | |
2378 | continue; | |
2379 | ret = asprintf(&buf, "%s:%s@%s", ent->pev.group, | |
2380 | ent->pev.event, nd->s); | |
2381 | if (ret > 0) | |
2382 | strlist__add(sdtlist, buf); | |
2383 | } | |
2384 | probe_cache__delete(pcache); | |
2385 | } | |
2386 | strlist__delete(bidlist); | |
2387 | ||
2388 | strlist__for_each_entry(nd, sdtlist) { | |
2389 | buf = strchr(nd->s, '@'); | |
2390 | if (buf) | |
2391 | *(buf++) = '\0'; | |
2392 | if (name_only) { | |
2393 | printf("%s ", nd->s); | |
2394 | continue; | |
2395 | } | |
2396 | nd2 = strlist__next(nd); | |
2397 | if (nd2) { | |
2398 | ptr = strchr(nd2->s, '@'); | |
2399 | if (ptr) | |
2400 | *ptr = '\0'; | |
2401 | if (strcmp(nd->s, nd2->s) == 0) | |
2402 | show_detail = true; | |
2403 | } | |
2404 | if (show_detail) { | |
2405 | path = build_id_cache__origname(buf); | |
2406 | ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf); | |
2407 | if (ret > 0) { | |
2408 | printf(" %-50s [%s]\n", buf, "SDT event"); | |
2409 | free(buf); | |
2410 | } | |
8bde8516 | 2411 | free(path); |
40218dae MH |
2412 | } else |
2413 | printf(" %-50s [%s]\n", nd->s, "SDT event"); | |
2414 | if (nd2) { | |
2415 | if (strcmp(nd->s, nd2->s) != 0) | |
2416 | show_detail = false; | |
2417 | if (ptr) | |
2418 | *ptr = '@'; | |
2419 | } | |
2420 | } | |
2421 | strlist__delete(sdtlist); | |
2422 | } | |
2423 | ||
a3277d2d | 2424 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 | 2425 | { |
ab0e4800 | 2426 | unsigned int type, op, i, evt_i = 0, evt_num = 0; |
0b668bc9 | 2427 | char name[64]; |
ab0e4800 YS |
2428 | char **evt_list = NULL; |
2429 | bool evt_num_known = false; | |
2430 | ||
2431 | restart: | |
2432 | if (evt_num_known) { | |
2433 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2434 | if (!evt_list) | |
2435 | goto out_enomem; | |
2436 | } | |
668b8788 ACM |
2437 | |
2438 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
2439 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
2440 | /* skip invalid cache type */ | |
0b668bc9 | 2441 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
2442 | continue; |
2443 | ||
2444 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
2445 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
2446 | name, sizeof(name)); | |
947b4ad1 | 2447 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
2448 | continue; |
2449 | ||
b41f1cec NK |
2450 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
2451 | type | (op << 8) | (i << 16))) | |
2452 | continue; | |
2453 | ||
ab0e4800 YS |
2454 | if (!evt_num_known) { |
2455 | evt_num++; | |
2456 | continue; | |
2457 | } | |
2458 | ||
2459 | evt_list[evt_i] = strdup(name); | |
2460 | if (evt_list[evt_i] == NULL) | |
2461 | goto out_enomem; | |
2462 | evt_i++; | |
668b8788 ACM |
2463 | } |
2464 | } | |
2465 | } | |
2466 | ||
ab0e4800 YS |
2467 | if (!evt_num_known) { |
2468 | evt_num_known = true; | |
2469 | goto restart; | |
2470 | } | |
2471 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2472 | evt_i = 0; | |
2473 | while (evt_i < evt_num) { | |
2474 | if (name_only) { | |
2475 | printf("%s ", evt_list[evt_i++]); | |
2476 | continue; | |
2477 | } | |
2478 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2479 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2480 | } | |
dfc431cb | 2481 | if (evt_num && pager_in_use()) |
dc098b35 | 2482 | printf("\n"); |
ab0e4800 YS |
2483 | |
2484 | out_free: | |
2485 | evt_num = evt_i; | |
2486 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2487 | zfree(&evt_list[evt_i]); | |
2488 | zfree(&evt_list); | |
2489 | return evt_num; | |
2490 | ||
2491 | out_enomem: | |
2492 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2493 | if (evt_list) | |
2494 | goto out_free; | |
2495 | return evt_num; | |
668b8788 ACM |
2496 | } |
2497 | ||
5e0861ba AK |
2498 | static void print_tool_event(const char *name, const char *event_glob, |
2499 | bool name_only) | |
2500 | { | |
2501 | if (event_glob && !strglobmatch(name, event_glob)) | |
2502 | return; | |
2503 | if (name_only) | |
2504 | printf("%s ", name); | |
2505 | else | |
2506 | printf(" %-50s [%s]\n", name, "Tool event"); | |
2507 | ||
2508 | } | |
2509 | ||
2510 | void print_tool_events(const char *event_glob, bool name_only) | |
2511 | { | |
2512 | print_tool_event("duration_time", event_glob, name_only); | |
2513 | if (pager_in_use()) | |
2514 | printf("\n"); | |
2515 | } | |
2516 | ||
705750f2 | 2517 | void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
2518 | struct event_symbol *syms, unsigned max, |
2519 | bool name_only) | |
8ad8db37 | 2520 | { |
ab0e4800 | 2521 | unsigned int i, evt_i = 0, evt_num = 0; |
947b4ad1 | 2522 | char name[MAX_NAME_LEN]; |
ab0e4800 YS |
2523 | char **evt_list = NULL; |
2524 | bool evt_num_known = false; | |
2525 | ||
2526 | restart: | |
2527 | if (evt_num_known) { | |
2528 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2529 | if (!evt_list) | |
2530 | goto out_enomem; | |
2531 | syms -= max; | |
2532 | } | |
8ad8db37 | 2533 | |
1dc12760 | 2534 | for (i = 0; i < max; i++, syms++) { |
668b8788 | 2535 | |
e37df6c7 | 2536 | if (event_glob != NULL && syms->symbol != NULL && |
668b8788 ACM |
2537 | !(strglobmatch(syms->symbol, event_glob) || |
2538 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
2539 | continue; | |
8ad8db37 | 2540 | |
b41f1cec NK |
2541 | if (!is_event_supported(type, i)) |
2542 | continue; | |
2543 | ||
ab0e4800 YS |
2544 | if (!evt_num_known) { |
2545 | evt_num++; | |
a3277d2d FW |
2546 | continue; |
2547 | } | |
2548 | ||
ab0e4800 | 2549 | if (!name_only && strlen(syms->alias)) |
947b4ad1 | 2550 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 2551 | else |
bd8d57fb | 2552 | strlcpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 2553 | |
ab0e4800 YS |
2554 | evt_list[evt_i] = strdup(name); |
2555 | if (evt_list[evt_i] == NULL) | |
2556 | goto out_enomem; | |
2557 | evt_i++; | |
8ad8db37 IM |
2558 | } |
2559 | ||
ab0e4800 YS |
2560 | if (!evt_num_known) { |
2561 | evt_num_known = true; | |
2562 | goto restart; | |
2563 | } | |
2564 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2565 | evt_i = 0; | |
2566 | while (evt_i < evt_num) { | |
2567 | if (name_only) { | |
2568 | printf("%s ", evt_list[evt_i++]); | |
2569 | continue; | |
2570 | } | |
2571 | printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); | |
2572 | } | |
dfc431cb | 2573 | if (evt_num && pager_in_use()) |
668b8788 | 2574 | printf("\n"); |
ab0e4800 YS |
2575 | |
2576 | out_free: | |
2577 | evt_num = evt_i; | |
2578 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2579 | zfree(&evt_list[evt_i]); | |
2580 | zfree(&evt_list); | |
2581 | return; | |
2582 | ||
2583 | out_enomem: | |
2584 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]); | |
2585 | if (evt_list) | |
2586 | goto out_free; | |
1dc12760 JO |
2587 | } |
2588 | ||
2589 | /* | |
2590 | * Print the help text for the event symbols: | |
2591 | */ | |
c8d6828a | 2592 | void print_events(const char *event_glob, bool name_only, bool quiet_flag, |
bf874fcf | 2593 | bool long_desc, bool details_flag) |
1dc12760 | 2594 | { |
1dc12760 | 2595 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, |
a3277d2d | 2596 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
2597 | |
2598 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 2599 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
5e0861ba | 2600 | print_tool_events(event_glob, name_only); |
1dc12760 | 2601 | |
a3277d2d | 2602 | print_hwcache_events(event_glob, name_only); |
668b8788 | 2603 | |
bf874fcf AK |
2604 | print_pmu_events(event_glob, name_only, quiet_flag, long_desc, |
2605 | details_flag); | |
dc098b35 | 2606 | |
668b8788 ACM |
2607 | if (event_glob != NULL) |
2608 | return; | |
73c24cb8 | 2609 | |
a3277d2d | 2610 | if (!name_only) { |
a3277d2d FW |
2611 | printf(" %-50s [%s]\n", |
2612 | "rNNN", | |
2613 | event_type_descriptors[PERF_TYPE_RAW]); | |
2614 | printf(" %-50s [%s]\n", | |
2615 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
2616 | event_type_descriptors[PERF_TYPE_RAW]); | |
dfc431cb ACM |
2617 | if (pager_in_use()) |
2618 | printf(" (see 'man perf-list' on how to encode it)\n\n"); | |
a3277d2d FW |
2619 | |
2620 | printf(" %-50s [%s]\n", | |
3741eb9f | 2621 | "mem:<addr>[/len][:access]", |
41bdcb23 | 2622 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
dfc431cb ACM |
2623 | if (pager_in_use()) |
2624 | printf("\n"); | |
a3277d2d | 2625 | } |
1b290d67 | 2626 | |
a3277d2d | 2627 | print_tracepoint_events(NULL, NULL, name_only); |
40218dae MH |
2628 | |
2629 | print_sdt_events(NULL, NULL, name_only); | |
71b0acce | 2630 | |
33bbc571 | 2631 | metricgroup__print(true, true, NULL, name_only, details_flag); |
8ad8db37 | 2632 | } |
8f707d84 | 2633 | |
6cee6cd3 | 2634 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 2635 | { |
16fa7e82 | 2636 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
2637 | } |
2638 | ||
67b49b38 JO |
2639 | static int new_term(struct parse_events_term **_term, |
2640 | struct parse_events_term *temp, | |
2641 | char *str, u64 num) | |
8f707d84 | 2642 | { |
6cee6cd3 | 2643 | struct parse_events_term *term; |
8f707d84 | 2644 | |
67b49b38 | 2645 | term = malloc(sizeof(*term)); |
8f707d84 JO |
2646 | if (!term) |
2647 | return -ENOMEM; | |
2648 | ||
67b49b38 | 2649 | *term = *temp; |
8f707d84 | 2650 | INIT_LIST_HEAD(&term->list); |
c2f1cead | 2651 | term->weak = false; |
8f707d84 | 2652 | |
67b49b38 | 2653 | switch (term->type_val) { |
8f707d84 JO |
2654 | case PARSE_EVENTS__TERM_TYPE_NUM: |
2655 | term->val.num = num; | |
2656 | break; | |
2657 | case PARSE_EVENTS__TERM_TYPE_STR: | |
2658 | term->val.str = str; | |
2659 | break; | |
2660 | default: | |
4be8be6b | 2661 | free(term); |
8f707d84 JO |
2662 | return -EINVAL; |
2663 | } | |
2664 | ||
2665 | *_term = term; | |
2666 | return 0; | |
2667 | } | |
2668 | ||
6cee6cd3 | 2669 | int parse_events_term__num(struct parse_events_term **term, |
cecf3a2e | 2670 | int type_term, char *config, u64 num, |
99e7138e | 2671 | bool no_value, |
bb78ce7d | 2672 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2673 | { |
bb78ce7d AH |
2674 | YYLTYPE *loc_term = loc_term_; |
2675 | YYLTYPE *loc_val = loc_val_; | |
2676 | ||
67b49b38 JO |
2677 | struct parse_events_term temp = { |
2678 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
2679 | .type_term = type_term, | |
2680 | .config = config, | |
99e7138e | 2681 | .no_value = no_value, |
67b49b38 JO |
2682 | .err_term = loc_term ? loc_term->first_column : 0, |
2683 | .err_val = loc_val ? loc_val->first_column : 0, | |
2684 | }; | |
2685 | ||
2686 | return new_term(term, &temp, NULL, num); | |
16fa7e82 JO |
2687 | } |
2688 | ||
6cee6cd3 | 2689 | int parse_events_term__str(struct parse_events_term **term, |
cecf3a2e | 2690 | int type_term, char *config, char *str, |
bb78ce7d | 2691 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2692 | { |
bb78ce7d AH |
2693 | YYLTYPE *loc_term = loc_term_; |
2694 | YYLTYPE *loc_val = loc_val_; | |
2695 | ||
67b49b38 JO |
2696 | struct parse_events_term temp = { |
2697 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2698 | .type_term = type_term, | |
2699 | .config = config, | |
2700 | .err_term = loc_term ? loc_term->first_column : 0, | |
2701 | .err_val = loc_val ? loc_val->first_column : 0, | |
2702 | }; | |
2703 | ||
2704 | return new_term(term, &temp, str, 0); | |
16fa7e82 JO |
2705 | } |
2706 | ||
6cee6cd3 | 2707 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
2708 | char *config, unsigned idx) |
2709 | { | |
2710 | struct event_symbol *sym; | |
67b49b38 JO |
2711 | struct parse_events_term temp = { |
2712 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2713 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
2714 | .config = config ?: (char *) "event", | |
2715 | }; | |
1d33d6dc JO |
2716 | |
2717 | BUG_ON(idx >= PERF_COUNT_HW_MAX); | |
2718 | sym = &event_symbols_hw[idx]; | |
2719 | ||
67b49b38 | 2720 | return new_term(term, &temp, (char *) sym->symbol, 0); |
1d33d6dc JO |
2721 | } |
2722 | ||
6cee6cd3 ACM |
2723 | int parse_events_term__clone(struct parse_events_term **new, |
2724 | struct parse_events_term *term) | |
a6146d50 | 2725 | { |
67b49b38 JO |
2726 | struct parse_events_term temp = { |
2727 | .type_val = term->type_val, | |
2728 | .type_term = term->type_term, | |
2729 | .config = term->config, | |
2730 | .err_term = term->err_term, | |
2731 | .err_val = term->err_val, | |
2732 | }; | |
2733 | ||
2734 | return new_term(new, &temp, term->val.str, term->val.num); | |
a6146d50 ZY |
2735 | } |
2736 | ||
8255718f AK |
2737 | int parse_events_copy_term_list(struct list_head *old, |
2738 | struct list_head **new) | |
2739 | { | |
2740 | struct parse_events_term *term, *n; | |
2741 | int ret; | |
2742 | ||
2743 | if (!old) { | |
2744 | *new = NULL; | |
2745 | return 0; | |
2746 | } | |
2747 | ||
2748 | *new = malloc(sizeof(struct list_head)); | |
2749 | if (!*new) | |
2750 | return -ENOMEM; | |
2751 | INIT_LIST_HEAD(*new); | |
2752 | ||
2753 | list_for_each_entry (term, old, list) { | |
2754 | ret = parse_events_term__clone(&n, term); | |
2755 | if (ret) | |
2756 | return ret; | |
2757 | list_add_tail(&n->list, *new); | |
2758 | } | |
2759 | return 0; | |
2760 | } | |
2761 | ||
fc0a2c1d | 2762 | void parse_events_terms__purge(struct list_head *terms) |
8f707d84 | 2763 | { |
6cee6cd3 | 2764 | struct parse_events_term *term, *h; |
8f707d84 | 2765 | |
a8adfceb | 2766 | list_for_each_entry_safe(term, h, terms, list) { |
2d055bf2 | 2767 | if (term->array.nr_ranges) |
360e071b | 2768 | zfree(&term->array.ranges); |
a8adfceb | 2769 | list_del_init(&term->list); |
8f707d84 | 2770 | free(term); |
a8adfceb | 2771 | } |
8f707d84 | 2772 | } |
b39b8393 | 2773 | |
2146afc6 | 2774 | void parse_events_terms__delete(struct list_head *terms) |
fc0a2c1d | 2775 | { |
2146afc6 ACM |
2776 | if (!terms) |
2777 | return; | |
fc0a2c1d | 2778 | parse_events_terms__purge(terms); |
d20a5f2b | 2779 | free(terms); |
fc0a2c1d ACM |
2780 | } |
2781 | ||
2d055bf2 WN |
2782 | void parse_events__clear_array(struct parse_events_array *a) |
2783 | { | |
360e071b | 2784 | zfree(&a->ranges); |
2d055bf2 WN |
2785 | } |
2786 | ||
5d9cdc11 | 2787 | void parse_events_evlist_error(struct parse_events_state *parse_state, |
b39b8393 JO |
2788 | int idx, const char *str) |
2789 | { | |
5d9cdc11 | 2790 | struct parse_events_error *err = parse_state->error; |
b39b8393 | 2791 | |
a6ced2be AH |
2792 | if (!err) |
2793 | return; | |
b39b8393 JO |
2794 | err->idx = idx; |
2795 | err->str = strdup(str); | |
2796 | WARN_ONCE(!err->str, "WARNING: failed to allocate error string"); | |
2797 | } | |
ffeb883e | 2798 | |
17cb5f84 WN |
2799 | static void config_terms_list(char *buf, size_t buf_sz) |
2800 | { | |
2801 | int i; | |
2802 | bool first = true; | |
2803 | ||
2804 | buf[0] = '\0'; | |
2805 | for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) { | |
2806 | const char *name = config_term_names[i]; | |
2807 | ||
1669e509 WN |
2808 | if (!config_term_avail(i, NULL)) |
2809 | continue; | |
17cb5f84 WN |
2810 | if (!name) |
2811 | continue; | |
2812 | if (name[0] == '<') | |
2813 | continue; | |
2814 | ||
2815 | if (strlen(buf) + strlen(name) + 2 >= buf_sz) | |
2816 | return; | |
2817 | ||
2818 | if (!first) | |
2819 | strcat(buf, ","); | |
2820 | else | |
2821 | first = false; | |
2822 | strcat(buf, name); | |
2823 | } | |
2824 | } | |
2825 | ||
ffeb883e HK |
2826 | /* |
2827 | * Return string contains valid config terms of an event. | |
2828 | * @additional_terms: For terms such as PMU sysfs terms. | |
2829 | */ | |
2830 | char *parse_events_formats_error_string(char *additional_terms) | |
2831 | { | |
2832 | char *str; | |
626a6b78 | 2833 | /* "no-overwrite" is the longest name */ |
17cb5f84 | 2834 | char static_terms[__PARSE_EVENTS__TERM_TYPE_NR * |
626a6b78 | 2835 | (sizeof("no-overwrite") - 1)]; |
ffeb883e | 2836 | |
17cb5f84 | 2837 | config_terms_list(static_terms, sizeof(static_terms)); |
ffeb883e HK |
2838 | /* valid terms */ |
2839 | if (additional_terms) { | |
26dee028 WN |
2840 | if (asprintf(&str, "valid terms: %s,%s", |
2841 | additional_terms, static_terms) < 0) | |
ffeb883e HK |
2842 | goto fail; |
2843 | } else { | |
26dee028 | 2844 | if (asprintf(&str, "valid terms: %s", static_terms) < 0) |
ffeb883e HK |
2845 | goto fail; |
2846 | } | |
2847 | return str; | |
2848 | ||
2849 | fail: | |
2850 | return NULL; | |
2851 | } |