1#include "../../../include/linux/hw_breakpoint.h"
2#include "util.h"
3#include "../perf.h"
4#include "evlist.h"
5#include "evsel.h"
6#include "parse-options.h"
7#include "parse-events.h"
8#include "exec_cmd.h"
9#include "string.h"
10#include "symbol.h"
11#include "cache.h"
12#include "header.h"
13#include "debugfs.h"
14#include "parse-events-flex.h"
15#include "pmu.h"
16
17#define MAX_NAME_LEN 100
18
19struct event_symbol {
20 u8 type;
21 u64 config;
22 const char *symbol;
23 const char *alias;
24};
25
26int parse_events_parse(struct list_head *list, struct list_head *list_tmp,
27 int *idx);
28
29#define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
30#define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
31
32static struct event_symbol event_symbols[] = {
33 { CHW(CPU_CYCLES), "cpu-cycles", "cycles" },
34 { CHW(STALLED_CYCLES_FRONTEND), "stalled-cycles-frontend", "idle-cycles-frontend" },
35 { CHW(STALLED_CYCLES_BACKEND), "stalled-cycles-backend", "idle-cycles-backend" },
36 { CHW(INSTRUCTIONS), "instructions", "" },
37 { CHW(CACHE_REFERENCES), "cache-references", "" },
38 { CHW(CACHE_MISSES), "cache-misses", "" },
39 { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" },
40 { CHW(BRANCH_MISSES), "branch-misses", "" },
41 { CHW(BUS_CYCLES), "bus-cycles", "" },
42 { CHW(REF_CPU_CYCLES), "ref-cycles", "" },
43
44 { CSW(CPU_CLOCK), "cpu-clock", "" },
45 { CSW(TASK_CLOCK), "task-clock", "" },
46 { CSW(PAGE_FAULTS), "page-faults", "faults" },
47 { CSW(PAGE_FAULTS_MIN), "minor-faults", "" },
48 { CSW(PAGE_FAULTS_MAJ), "major-faults", "" },
49 { CSW(CONTEXT_SWITCHES), "context-switches", "cs" },
50 { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" },
51 { CSW(ALIGNMENT_FAULTS), "alignment-faults", "" },
52 { CSW(EMULATION_FAULTS), "emulation-faults", "" },
53};
54
55#define __PERF_EVENT_FIELD(config, name) \
56 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
57
58#define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
59#define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
60#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
61#define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
62
63static const char *hw_event_names[PERF_COUNT_HW_MAX] = {
64 "cycles",
65 "instructions",
66 "cache-references",
67 "cache-misses",
68 "branches",
69 "branch-misses",
70 "bus-cycles",
71 "stalled-cycles-frontend",
72 "stalled-cycles-backend",
73 "ref-cycles",
74};
75
76static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
77 "cpu-clock",
78 "task-clock",
79 "page-faults",
80 "context-switches",
81 "CPU-migrations",
82 "minor-faults",
83 "major-faults",
84 "alignment-faults",
85 "emulation-faults",
86};
87
88#define MAX_ALIASES 8
89
90static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
91 { "L1-dcache", "l1-d", "l1d", "L1-data", },
92 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
93 { "LLC", "L2", },
94 { "dTLB", "d-tlb", "Data-TLB", },
95 { "iTLB", "i-tlb", "Instruction-TLB", },
96 { "branch", "branches", "bpu", "btb", "bpc", },
97 { "node", },
98};
99
100static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
101 { "load", "loads", "read", },
102 { "store", "stores", "write", },
103 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
104};
105
106static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
107 [MAX_ALIASES] = {
108 { "refs", "Reference", "ops", "access", },
109 { "misses", "miss", },
110};
111
112#define C(x) PERF_COUNT_HW_CACHE_##x
113#define CACHE_READ (1 << C(OP_READ))
114#define CACHE_WRITE (1 << C(OP_WRITE))
115#define CACHE_PREFETCH (1 << C(OP_PREFETCH))
116#define COP(x) (1 << x)
117
118
119
120
121
122
123static unsigned long hw_cache_stat[C(MAX)] = {
124 [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
125 [C(L1I)] = (CACHE_READ | CACHE_PREFETCH),
126 [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
127 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
128 [C(ITLB)] = (CACHE_READ),
129 [C(BPU)] = (CACHE_READ),
130 [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
131};
132
133#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
134 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
135 if (sys_dirent.d_type == DT_DIR && \
136 (strcmp(sys_dirent.d_name, ".")) && \
137 (strcmp(sys_dirent.d_name, "..")))
138
139static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
140{
141 char evt_path[MAXPATHLEN];
142 int fd;
143
144 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
145 sys_dir->d_name, evt_dir->d_name);
146 fd = open(evt_path, O_RDONLY);
147 if (fd < 0)
148 return -EINVAL;
149 close(fd);
150
151 return 0;
152}
153
154#define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
155 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
156 if (evt_dirent.d_type == DT_DIR && \
157 (strcmp(evt_dirent.d_name, ".")) && \
158 (strcmp(evt_dirent.d_name, "..")) && \
159 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
160
161#define MAX_EVENT_LENGTH 512
162
163
164struct tracepoint_path *tracepoint_id_to_path(u64 config)
165{
166 struct tracepoint_path *path = NULL;
167 DIR *sys_dir, *evt_dir;
168 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
169 char id_buf[24];
170 int fd;
171 u64 id;
172 char evt_path[MAXPATHLEN];
173 char dir_path[MAXPATHLEN];
174
175 if (debugfs_valid_mountpoint(tracing_events_path))
176 return NULL;
177
178 sys_dir = opendir(tracing_events_path);
179 if (!sys_dir)
180 return NULL;
181
182 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
183
184 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
185 sys_dirent.d_name);
186 evt_dir = opendir(dir_path);
187 if (!evt_dir)
188 continue;
189
190 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
191
192 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
193 evt_dirent.d_name);
194 fd = open(evt_path, O_RDONLY);
195 if (fd < 0)
196 continue;
197 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
198 close(fd);
199 continue;
200 }
201 close(fd);
202 id = atoll(id_buf);
203 if (id == config) {
204 closedir(evt_dir);
205 closedir(sys_dir);
206 path = zalloc(sizeof(*path));
207 path->system = malloc(MAX_EVENT_LENGTH);
208 if (!path->system) {
209 free(path);
210 return NULL;
211 }
212 path->name = malloc(MAX_EVENT_LENGTH);
213 if (!path->name) {
214 free(path->system);
215 free(path);
216 return NULL;
217 }
218 strncpy(path->system, sys_dirent.d_name,
219 MAX_EVENT_LENGTH);
220 strncpy(path->name, evt_dirent.d_name,
221 MAX_EVENT_LENGTH);
222 return path;
223 }
224 }
225 closedir(evt_dir);
226 }
227
228 closedir(sys_dir);
229 return NULL;
230}
231
232#define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
233static const char *tracepoint_id_to_name(u64 config)
234{
235 static char buf[TP_PATH_LEN];
236 struct tracepoint_path *path;
237
238 path = tracepoint_id_to_path(config);
239 if (path) {
240 snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
241 free(path->name);
242 free(path->system);
243 free(path);
244 } else
245 snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
246
247 return buf;
248}
249
250static int is_cache_op_valid(u8 cache_type, u8 cache_op)
251{
252 if (hw_cache_stat[cache_type] & COP(cache_op))
253 return 1;
254 else
255 return 0;
256}
257
258static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
259{
260 static char name[50];
261
262 if (cache_result) {
263 sprintf(name, "%s-%s-%s", hw_cache[cache_type][0],
264 hw_cache_op[cache_op][0],
265 hw_cache_result[cache_result][0]);
266 } else {
267 sprintf(name, "%s-%s", hw_cache[cache_type][0],
268 hw_cache_op[cache_op][1]);
269 }
270
271 return name;
272}
273
274const char *event_type(int type)
275{
276 switch (type) {
277 case PERF_TYPE_HARDWARE:
278 return "hardware";
279
280 case PERF_TYPE_SOFTWARE:
281 return "software";
282
283 case PERF_TYPE_TRACEPOINT:
284 return "tracepoint";
285
286 case PERF_TYPE_HW_CACHE:
287 return "hardware-cache";
288
289 default:
290 break;
291 }
292
293 return "unknown";
294}
295
296const char *event_name(struct perf_evsel *evsel)
297{
298 u64 config = evsel->attr.config;
299 int type = evsel->attr.type;
300
301 if (evsel->name)
302 return evsel->name;
303
304 return __event_name(type, config);
305}
306
307const char *__event_name(int type, u64 config)
308{
309 static char buf[32];
310
311 if (type == PERF_TYPE_RAW) {
312 sprintf(buf, "raw 0x%" PRIx64, config);
313 return buf;
314 }
315
316 switch (type) {
317 case PERF_TYPE_HARDWARE:
318 if (config < PERF_COUNT_HW_MAX && hw_event_names[config])
319 return hw_event_names[config];
320 return "unknown-hardware";
321
322 case PERF_TYPE_HW_CACHE: {
323 u8 cache_type, cache_op, cache_result;
324
325 cache_type = (config >> 0) & 0xff;
326 if (cache_type > PERF_COUNT_HW_CACHE_MAX)
327 return "unknown-ext-hardware-cache-type";
328
329 cache_op = (config >> 8) & 0xff;
330 if (cache_op > PERF_COUNT_HW_CACHE_OP_MAX)
331 return "unknown-ext-hardware-cache-op";
332
333 cache_result = (config >> 16) & 0xff;
334 if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX)
335 return "unknown-ext-hardware-cache-result";
336
337 if (!is_cache_op_valid(cache_type, cache_op))
338 return "invalid-cache";
339
340 return event_cache_name(cache_type, cache_op, cache_result);
341 }
342
343 case PERF_TYPE_SOFTWARE:
344 if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
345 return sw_event_names[config];
346 return "unknown-software";
347
348 case PERF_TYPE_TRACEPOINT:
349 return tracepoint_id_to_name(config);
350
351 default:
352 break;
353 }
354
355 return "unknown";
356}
357
358static int add_event(struct list_head *list, int *idx,
359 struct perf_event_attr *attr, char *name)
360{
361 struct perf_evsel *evsel;
362
363 event_attr_init(attr);
364
365 evsel = perf_evsel__new(attr, (*idx)++);
366 if (!evsel)
367 return -ENOMEM;
368
369 list_add_tail(&evsel->node, list);
370
371 evsel->name = strdup(name);
372 return 0;
373}
374
375static int parse_aliases(char *str, const char *names[][MAX_ALIASES], int size)
376{
377 int i, j;
378 int n, longest = -1;
379
380 for (i = 0; i < size; i++) {
381 for (j = 0; j < MAX_ALIASES && names[i][j]; j++) {
382 n = strlen(names[i][j]);
383 if (n > longest && !strncasecmp(str, names[i][j], n))
384 longest = n;
385 }
386 if (longest > 0)
387 return i;
388 }
389
390 return -1;
391}
392
393int parse_events_add_cache(struct list_head *list, int *idx,
394 char *type, char *op_result1, char *op_result2)
395{
396 struct perf_event_attr attr;
397 char name[MAX_NAME_LEN];
398 int cache_type = -1, cache_op = -1, cache_result = -1;
399 char *op_result[2] = { op_result1, op_result2 };
400 int i, n;
401
402
403
404
405
406 cache_type = parse_aliases(type, hw_cache,
407 PERF_COUNT_HW_CACHE_MAX);
408 if (cache_type == -1)
409 return -EINVAL;
410
411 n = snprintf(name, MAX_NAME_LEN, "%s", type);
412
413 for (i = 0; (i < 2) && (op_result[i]); i++) {
414 char *str = op_result[i];
415
416 snprintf(name + n, MAX_NAME_LEN - n, "-%s\n", str);
417
418 if (cache_op == -1) {
419 cache_op = parse_aliases(str, hw_cache_op,
420 PERF_COUNT_HW_CACHE_OP_MAX);
421 if (cache_op >= 0) {
422 if (!is_cache_op_valid(cache_type, cache_op))
423 return -EINVAL;
424 continue;
425 }
426 }
427
428 if (cache_result == -1) {
429 cache_result = parse_aliases(str, hw_cache_result,
430 PERF_COUNT_HW_CACHE_RESULT_MAX);
431 if (cache_result >= 0)
432 continue;
433 }
434 }
435
436
437
438
439 if (cache_op == -1)
440 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
441
442
443
444
445 if (cache_result == -1)
446 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
447
448 memset(&attr, 0, sizeof(attr));
449 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
450 attr.type = PERF_TYPE_HW_CACHE;
451 return add_event(list, idx, &attr, name);
452}
453
454static int add_tracepoint(struct list_head *list, int *idx,
455 char *sys_name, char *evt_name)
456{
457 struct perf_event_attr attr;
458 char name[MAX_NAME_LEN];
459 char evt_path[MAXPATHLEN];
460 char id_buf[4];
461 u64 id;
462 int fd;
463
464 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
465 sys_name, evt_name);
466
467 fd = open(evt_path, O_RDONLY);
468 if (fd < 0)
469 return -1;
470
471 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
472 close(fd);
473 return -1;
474 }
475
476 close(fd);
477 id = atoll(id_buf);
478
479 memset(&attr, 0, sizeof(attr));
480 attr.config = id;
481 attr.type = PERF_TYPE_TRACEPOINT;
482 attr.sample_type |= PERF_SAMPLE_RAW;
483 attr.sample_type |= PERF_SAMPLE_TIME;
484 attr.sample_type |= PERF_SAMPLE_CPU;
485 attr.sample_period = 1;
486
487 snprintf(name, MAX_NAME_LEN, "%s:%s", sys_name, evt_name);
488 return add_event(list, idx, &attr, name);
489}
490
491static int add_tracepoint_multi(struct list_head *list, int *idx,
492 char *sys_name, char *evt_name)
493{
494 char evt_path[MAXPATHLEN];
495 struct dirent *evt_ent;
496 DIR *evt_dir;
497 int ret = 0;
498
499 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
500 evt_dir = opendir(evt_path);
501 if (!evt_dir) {
502 perror("Can't open event dir");
503 return -1;
504 }
505
506 while (!ret && (evt_ent = readdir(evt_dir))) {
507 if (!strcmp(evt_ent->d_name, ".")
508 || !strcmp(evt_ent->d_name, "..")
509 || !strcmp(evt_ent->d_name, "enable")
510 || !strcmp(evt_ent->d_name, "filter"))
511 continue;
512
513 if (!strglobmatch(evt_ent->d_name, evt_name))
514 continue;
515
516 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name);
517 }
518
519 return ret;
520}
521
522int parse_events_add_tracepoint(struct list_head *list, int *idx,
523 char *sys, char *event)
524{
525 int ret;
526
527 ret = debugfs_valid_mountpoint(tracing_events_path);
528 if (ret)
529 return ret;
530
531 return strpbrk(event, "*?") ?
532 add_tracepoint_multi(list, idx, sys, event) :
533 add_tracepoint(list, idx, sys, event);
534}
535
536static int
537parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
538{
539 int i;
540
541 for (i = 0; i < 3; i++) {
542 if (!type || !type[i])
543 break;
544
545 switch (type[i]) {
546 case 'r':
547 attr->bp_type |= HW_BREAKPOINT_R;
548 break;
549 case 'w':
550 attr->bp_type |= HW_BREAKPOINT_W;
551 break;
552 case 'x':
553 attr->bp_type |= HW_BREAKPOINT_X;
554 break;
555 default:
556 return -EINVAL;
557 }
558 }
559
560 if (!attr->bp_type)
561 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
562
563 return 0;
564}
565
566int parse_events_add_breakpoint(struct list_head *list, int *idx,
567 void *ptr, char *type)
568{
569 struct perf_event_attr attr;
570 char name[MAX_NAME_LEN];
571
572 memset(&attr, 0, sizeof(attr));
573 attr.bp_addr = (unsigned long) ptr;
574
575 if (parse_breakpoint_type(type, &attr))
576 return -EINVAL;
577
578
579
580
581
582 if (attr.bp_type == HW_BREAKPOINT_X)
583 attr.bp_len = sizeof(long);
584 else
585 attr.bp_len = HW_BREAKPOINT_LEN_4;
586
587 attr.type = PERF_TYPE_BREAKPOINT;
588
589 snprintf(name, MAX_NAME_LEN, "mem:%p:%s", ptr, type ? type : "rw");
590 return add_event(list, idx, &attr, name);
591}
592
593static int config_term(struct perf_event_attr *attr,
594 struct parse_events__term *term)
595{
596 switch (term->type) {
597 case PARSE_EVENTS__TERM_TYPE_CONFIG:
598 attr->config = term->val.num;
599 break;
600 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
601 attr->config1 = term->val.num;
602 break;
603 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
604 attr->config2 = term->val.num;
605 break;
606 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
607 attr->sample_period = term->val.num;
608 break;
609 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
610
611
612
613
614 break;
615 default:
616 return -EINVAL;
617 }
618 return 0;
619}
620
621static int config_attr(struct perf_event_attr *attr,
622 struct list_head *head, int fail)
623{
624 struct parse_events__term *term;
625
626 list_for_each_entry(term, head, list)
627 if (config_term(attr, term) && fail)
628 return -EINVAL;
629
630 return 0;
631}
632
633int parse_events_add_numeric(struct list_head *list, int *idx,
634 unsigned long type, unsigned long config,
635 struct list_head *head_config)
636{
637 struct perf_event_attr attr;
638
639 memset(&attr, 0, sizeof(attr));
640 attr.type = type;
641 attr.config = config;
642
643 if (head_config &&
644 config_attr(&attr, head_config, 1))
645 return -EINVAL;
646
647 return add_event(list, idx, &attr,
648 (char *) __event_name(type, config));
649}
650
651int parse_events_add_pmu(struct list_head *list, int *idx,
652 char *name, struct list_head *head_config)
653{
654 struct perf_event_attr attr;
655 struct perf_pmu *pmu;
656
657 pmu = perf_pmu__find(name);
658 if (!pmu)
659 return -EINVAL;
660
661 memset(&attr, 0, sizeof(attr));
662
663
664
665
666
667 config_attr(&attr, head_config, 0);
668
669 if (perf_pmu__config(pmu, &attr, head_config))
670 return -EINVAL;
671
672 return add_event(list, idx, &attr, (char *) "pmu");
673}
674
675void parse_events_update_lists(struct list_head *list_event,
676 struct list_head *list_all)
677{
678
679
680
681
682
683 list_splice_tail(list_event, list_all);
684 INIT_LIST_HEAD(list_event);
685}
686
687int parse_events_modifier(struct list_head *list, char *str)
688{
689 struct perf_evsel *evsel;
690 int exclude = 0, exclude_GH = 0;
691 int eu = 0, ek = 0, eh = 0, eH = 0, eG = 0, precise = 0;
692
693 if (str == NULL)
694 return 0;
695
696 while (*str) {
697 if (*str == 'u') {
698 if (!exclude)
699 exclude = eu = ek = eh = 1;
700 eu = 0;
701 } else if (*str == 'k') {
702 if (!exclude)
703 exclude = eu = ek = eh = 1;
704 ek = 0;
705 } else if (*str == 'h') {
706 if (!exclude)
707 exclude = eu = ek = eh = 1;
708 eh = 0;
709 } else if (*str == 'G') {
710 if (!exclude_GH)
711 exclude_GH = eG = eH = 1;
712 eG = 0;
713 } else if (*str == 'H') {
714 if (!exclude_GH)
715 exclude_GH = eG = eH = 1;
716 eH = 0;
717 } else if (*str == 'p') {
718 precise++;
719 } else
720 break;
721
722 ++str;
723 }
724
725
726
727
728
729
730
731
732
733
734
735 if (precise > 3)
736 return -EINVAL;
737
738 list_for_each_entry(evsel, list, node) {
739 evsel->attr.exclude_user = eu;
740 evsel->attr.exclude_kernel = ek;
741 evsel->attr.exclude_hv = eh;
742 evsel->attr.precise_ip = precise;
743 evsel->attr.exclude_host = eH;
744 evsel->attr.exclude_guest = eG;
745 }
746
747 return 0;
748}
749
750int parse_events(struct perf_evlist *evlist, const char *str, int unset __used)
751{
752 LIST_HEAD(list);
753 LIST_HEAD(list_tmp);
754 YY_BUFFER_STATE buffer;
755 int ret, idx = evlist->nr_entries;
756
757 buffer = parse_events__scan_string(str);
758
759 ret = parse_events_parse(&list, &list_tmp, &idx);
760
761 parse_events__flush_buffer(buffer);
762 parse_events__delete_buffer(buffer);
763
764 if (!ret) {
765 int entries = idx - evlist->nr_entries;
766 perf_evlist__splice_list_tail(evlist, &list, entries);
767 return 0;
768 }
769
770
771
772
773
774
775 fprintf(stderr, "invalid or unsupported event: '%s'\n", str);
776 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
777 return ret;
778}
779
780int parse_events_option(const struct option *opt, const char *str,
781 int unset __used)
782{
783 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
784 return parse_events(evlist, str, unset);
785}
786
787int parse_filter(const struct option *opt, const char *str,
788 int unset __used)
789{
790 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
791 struct perf_evsel *last = NULL;
792
793 if (evlist->nr_entries > 0)
794 last = list_entry(evlist->entries.prev, struct perf_evsel, node);
795
796 if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
797 fprintf(stderr,
798 "-F option should follow a -e tracepoint option\n");
799 return -1;
800 }
801
802 last->filter = strdup(str);
803 if (last->filter == NULL) {
804 fprintf(stderr, "not enough memory to hold filter string\n");
805 return -1;
806 }
807
808 return 0;
809}
810
811static const char * const event_type_descriptors[] = {
812 "Hardware event",
813 "Software event",
814 "Tracepoint event",
815 "Hardware cache event",
816 "Raw hardware event descriptor",
817 "Hardware breakpoint",
818};
819
820
821
822
823
824void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
825{
826 DIR *sys_dir, *evt_dir;
827 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
828 char evt_path[MAXPATHLEN];
829 char dir_path[MAXPATHLEN];
830
831 if (debugfs_valid_mountpoint(tracing_events_path))
832 return;
833
834 sys_dir = opendir(tracing_events_path);
835 if (!sys_dir)
836 return;
837
838 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
839 if (subsys_glob != NULL &&
840 !strglobmatch(sys_dirent.d_name, subsys_glob))
841 continue;
842
843 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
844 sys_dirent.d_name);
845 evt_dir = opendir(dir_path);
846 if (!evt_dir)
847 continue;
848
849 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
850 if (event_glob != NULL &&
851 !strglobmatch(evt_dirent.d_name, event_glob))
852 continue;
853
854 snprintf(evt_path, MAXPATHLEN, "%s:%s",
855 sys_dirent.d_name, evt_dirent.d_name);
856 printf(" %-50s [%s]\n", evt_path,
857 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
858 }
859 closedir(evt_dir);
860 }
861 closedir(sys_dir);
862}
863
864
865
866
867
868int is_valid_tracepoint(const char *event_string)
869{
870 DIR *sys_dir, *evt_dir;
871 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
872 char evt_path[MAXPATHLEN];
873 char dir_path[MAXPATHLEN];
874
875 if (debugfs_valid_mountpoint(tracing_events_path))
876 return 0;
877
878 sys_dir = opendir(tracing_events_path);
879 if (!sys_dir)
880 return 0;
881
882 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
883
884 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
885 sys_dirent.d_name);
886 evt_dir = opendir(dir_path);
887 if (!evt_dir)
888 continue;
889
890 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
891 snprintf(evt_path, MAXPATHLEN, "%s:%s",
892 sys_dirent.d_name, evt_dirent.d_name);
893 if (!strcmp(evt_path, event_string)) {
894 closedir(evt_dir);
895 closedir(sys_dir);
896 return 1;
897 }
898 }
899 closedir(evt_dir);
900 }
901 closedir(sys_dir);
902 return 0;
903}
904
905void print_events_type(u8 type)
906{
907 struct event_symbol *syms = event_symbols;
908 unsigned int i;
909 char name[64];
910
911 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
912 if (type != syms->type)
913 continue;
914
915 if (strlen(syms->alias))
916 snprintf(name, sizeof(name), "%s OR %s",
917 syms->symbol, syms->alias);
918 else
919 snprintf(name, sizeof(name), "%s", syms->symbol);
920
921 printf(" %-50s [%s]\n", name,
922 event_type_descriptors[type]);
923 }
924}
925
926int print_hwcache_events(const char *event_glob)
927{
928 unsigned int type, op, i, printed = 0;
929
930 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
931 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
932
933 if (!is_cache_op_valid(type, op))
934 continue;
935
936 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
937 char *name = event_cache_name(type, op, i);
938
939 if (event_glob != NULL && !strglobmatch(name, event_glob))
940 continue;
941
942 printf(" %-50s [%s]\n", name,
943 event_type_descriptors[PERF_TYPE_HW_CACHE]);
944 ++printed;
945 }
946 }
947 }
948
949 return printed;
950}
951
952
953
954
955void print_events(const char *event_glob)
956{
957 unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
958 struct event_symbol *syms = event_symbols;
959 char name[MAX_NAME_LEN];
960
961 printf("\n");
962 printf("List of pre-defined events (to be used in -e):\n");
963
964 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
965 type = syms->type;
966
967 if (type != prev_type && printed) {
968 printf("\n");
969 printed = 0;
970 ntypes_printed++;
971 }
972
973 if (event_glob != NULL &&
974 !(strglobmatch(syms->symbol, event_glob) ||
975 (syms->alias && strglobmatch(syms->alias, event_glob))))
976 continue;
977
978 if (strlen(syms->alias))
979 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
980 else
981 strncpy(name, syms->symbol, MAX_NAME_LEN);
982 printf(" %-50s [%s]\n", name,
983 event_type_descriptors[type]);
984
985 prev_type = type;
986 ++printed;
987 }
988
989 if (ntypes_printed) {
990 printed = 0;
991 printf("\n");
992 }
993 print_hwcache_events(event_glob);
994
995 if (event_glob != NULL)
996 return;
997
998 printf("\n");
999 printf(" %-50s [%s]\n",
1000 "rNNN",
1001 event_type_descriptors[PERF_TYPE_RAW]);
1002 printf(" %-50s [%s]\n",
1003 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1004 event_type_descriptors[PERF_TYPE_RAW]);
1005 printf(" (see 'perf list --help' on how to encode it)\n");
1006 printf("\n");
1007
1008 printf(" %-50s [%s]\n",
1009 "mem:<addr>[:access]",
1010 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1011 printf("\n");
1012
1013 print_tracepoint_events(NULL, NULL);
1014}
1015
1016int parse_events__is_hardcoded_term(struct parse_events__term *term)
1017{
1018 return term->type <= PARSE_EVENTS__TERM_TYPE_HARDCODED_MAX;
1019}
1020
1021int parse_events__new_term(struct parse_events__term **_term, int type,
1022 char *config, char *str, long num)
1023{
1024 struct parse_events__term *term;
1025
1026 term = zalloc(sizeof(*term));
1027 if (!term)
1028 return -ENOMEM;
1029
1030 INIT_LIST_HEAD(&term->list);
1031 term->type = type;
1032 term->config = config;
1033
1034 switch (type) {
1035 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1036 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1037 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1038 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1039 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1040 case PARSE_EVENTS__TERM_TYPE_NUM:
1041 term->val.num = num;
1042 break;
1043 case PARSE_EVENTS__TERM_TYPE_STR:
1044 term->val.str = str;
1045 break;
1046 default:
1047 return -EINVAL;
1048 }
1049
1050 *_term = term;
1051 return 0;
1052}
1053
1054void parse_events__free_terms(struct list_head *terms)
1055{
1056 struct parse_events__term *term, *h;
1057
1058 list_for_each_entry_safe(term, h, terms, list)
1059 free(term);
1060
1061 free(terms);
1062}
1063
