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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
15struct event_symbol {
16 u8 type;
17 u64 config;
18 const char *symbol;
19 const char *alias;
20};
21
22enum event_result {
23 EVT_FAILED,
24 EVT_HANDLED,
25 EVT_HANDLED_ALL
26};
27
28char debugfs_path[MAXPATHLEN];
29
30#define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
31#define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
32
33static struct event_symbol event_symbols[] = {
34 { CHW(CPU_CYCLES), "cpu-cycles", "cycles" },
35 { CHW(STALLED_CYCLES_FRONTEND), "stalled-cycles-frontend", "idle-cycles-frontend" },
36 { CHW(STALLED_CYCLES_BACKEND), "stalled-cycles-backend", "idle-cycles-backend" },
37 { CHW(INSTRUCTIONS), "instructions", "" },
38 { CHW(CACHE_REFERENCES), "cache-references", "" },
39 { CHW(CACHE_MISSES), "cache-misses", "" },
40 { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" },
41 { CHW(BRANCH_MISSES), "branch-misses", "" },
42 { CHW(BUS_CYCLES), "bus-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};
74
75static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
76 "cpu-clock",
77 "task-clock",
78 "page-faults",
79 "context-switches",
80 "CPU-migrations",
81 "minor-faults",
82 "major-faults",
83 "alignment-faults",
84 "emulation-faults",
85};
86
87#define MAX_ALIASES 8
88
89static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
90 { "L1-dcache", "l1-d", "l1d", "L1-data", },
91 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
92 { "LLC", "L2", },
93 { "dTLB", "d-tlb", "Data-TLB", },
94 { "iTLB", "i-tlb", "Instruction-TLB", },
95 { "branch", "branches", "bpu", "btb", "bpc", },
96 { "node", },
97};
98
99static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
100 { "load", "loads", "read", },
101 { "store", "stores", "write", },
102 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
103};
104
105static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
106 [MAX_ALIASES] = {
107 { "refs", "Reference", "ops", "access", },
108 { "misses", "miss", },
109};
110
111#define C(x) PERF_COUNT_HW_CACHE_##x
112#define CACHE_READ (1 << C(OP_READ))
113#define CACHE_WRITE (1 << C(OP_WRITE))
114#define CACHE_PREFETCH (1 << C(OP_PREFETCH))
115#define COP(x) (1 << x)
116
117/*
118 * cache operartion stat
119 * L1I : Read and prefetch only
120 * ITLB and BPU : Read-only
121 */
122static unsigned long hw_cache_stat[C(MAX)] = {
123 [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
124 [C(L1I)] = (CACHE_READ | CACHE_PREFETCH),
125 [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
126 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
127 [C(ITLB)] = (CACHE_READ),
128 [C(BPU)] = (CACHE_READ),
129 [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
130};
131
132#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
133 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
134 if (sys_dirent.d_type == DT_DIR && \
135 (strcmp(sys_dirent.d_name, ".")) && \
136 (strcmp(sys_dirent.d_name, "..")))
137
138static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
139{
140 char evt_path[MAXPATHLEN];
141 int fd;
142
143 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
144 sys_dir->d_name, evt_dir->d_name);
145 fd = open(evt_path, O_RDONLY);
146 if (fd < 0)
147 return -EINVAL;
148 close(fd);
149
150 return 0;
151}
152
153#define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
154 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
155 if (evt_dirent.d_type == DT_DIR && \
156 (strcmp(evt_dirent.d_name, ".")) && \
157 (strcmp(evt_dirent.d_name, "..")) && \
158 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
159
160#define MAX_EVENT_LENGTH 512
161
162
163struct tracepoint_path *tracepoint_id_to_path(u64 config)
164{
165 struct tracepoint_path *path = NULL;
166 DIR *sys_dir, *evt_dir;
167 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
168 char id_buf[4];
169 int fd;
170 u64 id;
171 char evt_path[MAXPATHLEN];
172 char dir_path[MAXPATHLEN];
173
174 if (debugfs_valid_mountpoint(debugfs_path))
175 return NULL;
176
177 sys_dir = opendir(debugfs_path);
178 if (!sys_dir)
179 return NULL;
180
181 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
182
183 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
184 sys_dirent.d_name);
185 evt_dir = opendir(dir_path);
186 if (!evt_dir)
187 continue;
188
189 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
190
191 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
192 evt_dirent.d_name);
193 fd = open(evt_path, O_RDONLY);
194 if (fd < 0)
195 continue;
196 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
197 close(fd);
198 continue;
199 }
200 close(fd);
201 id = atoll(id_buf);
202 if (id == config) {
203 closedir(evt_dir);
204 closedir(sys_dir);
205 path = zalloc(sizeof(*path));
206 path->system = malloc(MAX_EVENT_LENGTH);
207 if (!path->system) {
208 free(path);
209 return NULL;
210 }
211 path->name = malloc(MAX_EVENT_LENGTH);
212 if (!path->name) {
213 free(path->system);
214 free(path);
215 return NULL;
216 }
217 strncpy(path->system, sys_dirent.d_name,
218 MAX_EVENT_LENGTH);
219 strncpy(path->name, evt_dirent.d_name,
220 MAX_EVENT_LENGTH);
221 return path;
222 }
223 }
224 closedir(evt_dir);
225 }
226
227 closedir(sys_dir);
228 return NULL;
229}
230
231#define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
232static const char *tracepoint_id_to_name(u64 config)
233{
234 static char buf[TP_PATH_LEN];
235 struct tracepoint_path *path;
236
237 path = tracepoint_id_to_path(config);
238 if (path) {
239 snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
240 free(path->name);
241 free(path->system);
242 free(path);
243 } else
244 snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
245
246 return buf;
247}
248
249static int is_cache_op_valid(u8 cache_type, u8 cache_op)
250{
251 if (hw_cache_stat[cache_type] & COP(cache_op))
252 return 1; /* valid */
253 else
254 return 0; /* invalid */
255}
256
257static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
258{
259 static char name[50];
260
261 if (cache_result) {
262 sprintf(name, "%s-%s-%s", hw_cache[cache_type][0],
263 hw_cache_op[cache_op][0],
264 hw_cache_result[cache_result][0]);
265 } else {
266 sprintf(name, "%s-%s", hw_cache[cache_type][0],
267 hw_cache_op[cache_op][1]);
268 }
269
270 return name;
271}
272
273const char *event_type(int type)
274{
275 switch (type) {
276 case PERF_TYPE_HARDWARE:
277 return "hardware";
278
279 case PERF_TYPE_SOFTWARE:
280 return "software";
281
282 case PERF_TYPE_TRACEPOINT:
283 return "tracepoint";
284
285 case PERF_TYPE_HW_CACHE:
286 return "hardware-cache";
287
288 default:
289 break;
290 }
291
292 return "unknown";
293}
294
295const char *event_name(struct perf_evsel *evsel)
296{
297 u64 config = evsel->attr.config;
298 int type = evsel->attr.type;
299
300 if (evsel->name)
301 return evsel->name;
302
303 return __event_name(type, config);
304}
305
306const char *__event_name(int type, u64 config)
307{
308 static char buf[32];
309
310 if (type == PERF_TYPE_RAW) {
311 sprintf(buf, "raw 0x%" PRIx64, config);
312 return buf;
313 }
314
315 switch (type) {
316 case PERF_TYPE_HARDWARE:
317 if (config < PERF_COUNT_HW_MAX && hw_event_names[config])
318 return hw_event_names[config];
319 return "unknown-hardware";
320
321 case PERF_TYPE_HW_CACHE: {
322 u8 cache_type, cache_op, cache_result;
323
324 cache_type = (config >> 0) & 0xff;
325 if (cache_type > PERF_COUNT_HW_CACHE_MAX)
326 return "unknown-ext-hardware-cache-type";
327
328 cache_op = (config >> 8) & 0xff;
329 if (cache_op > PERF_COUNT_HW_CACHE_OP_MAX)
330 return "unknown-ext-hardware-cache-op";
331
332 cache_result = (config >> 16) & 0xff;
333 if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX)
334 return "unknown-ext-hardware-cache-result";
335
336 if (!is_cache_op_valid(cache_type, cache_op))
337 return "invalid-cache";
338
339 return event_cache_name(cache_type, cache_op, cache_result);
340 }
341
342 case PERF_TYPE_SOFTWARE:
343 if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
344 return sw_event_names[config];
345 return "unknown-software";
346
347 case PERF_TYPE_TRACEPOINT:
348 return tracepoint_id_to_name(config);
349
350 default:
351 break;
352 }
353
354 return "unknown";
355}
356
357static int parse_aliases(const char **str, const char *names[][MAX_ALIASES], int size)
358{
359 int i, j;
360 int n, longest = -1;
361
362 for (i = 0; i < size; i++) {
363 for (j = 0; j < MAX_ALIASES && names[i][j]; j++) {
364 n = strlen(names[i][j]);
365 if (n > longest && !strncasecmp(*str, names[i][j], n))
366 longest = n;
367 }
368 if (longest > 0) {
369 *str += longest;
370 return i;
371 }
372 }
373
374 return -1;
375}
376
377static enum event_result
378parse_generic_hw_event(const char **str, struct perf_event_attr *attr)
379{
380 const char *s = *str;
381 int cache_type = -1, cache_op = -1, cache_result = -1;
382
383 cache_type = parse_aliases(&s, hw_cache, PERF_COUNT_HW_CACHE_MAX);
384 /*
385 * No fallback - if we cannot get a clear cache type
386 * then bail out:
387 */
388 if (cache_type == -1)
389 return EVT_FAILED;
390
391 while ((cache_op == -1 || cache_result == -1) && *s == '-') {
392 ++s;
393
394 if (cache_op == -1) {
395 cache_op = parse_aliases(&s, hw_cache_op,
396 PERF_COUNT_HW_CACHE_OP_MAX);
397 if (cache_op >= 0) {
398 if (!is_cache_op_valid(cache_type, cache_op))
399 return EVT_FAILED;
400 continue;
401 }
402 }
403
404 if (cache_result == -1) {
405 cache_result = parse_aliases(&s, hw_cache_result,
406 PERF_COUNT_HW_CACHE_RESULT_MAX);
407 if (cache_result >= 0)
408 continue;
409 }
410
411 /*
412 * Can't parse this as a cache op or result, so back up
413 * to the '-'.
414 */
415 --s;
416 break;
417 }
418
419 /*
420 * Fall back to reads:
421 */
422 if (cache_op == -1)
423 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
424
425 /*
426 * Fall back to accesses:
427 */
428 if (cache_result == -1)
429 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
430
431 attr->config = cache_type | (cache_op << 8) | (cache_result << 16);
432 attr->type = PERF_TYPE_HW_CACHE;
433
434 *str = s;
435 return EVT_HANDLED;
436}
437
438static enum event_result
439parse_single_tracepoint_event(char *sys_name,
440 const char *evt_name,
441 unsigned int evt_length,
442 struct perf_event_attr *attr,
443 const char **strp)
444{
445 char evt_path[MAXPATHLEN];
446 char id_buf[4];
447 u64 id;
448 int fd;
449
450 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
451 sys_name, evt_name);
452
453 fd = open(evt_path, O_RDONLY);
454 if (fd < 0)
455 return EVT_FAILED;
456
457 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
458 close(fd);
459 return EVT_FAILED;
460 }
461
462 close(fd);
463 id = atoll(id_buf);
464 attr->config = id;
465 attr->type = PERF_TYPE_TRACEPOINT;
466 *strp += strlen(sys_name) + evt_length + 1; /* + 1 for the ':' */
467
468 attr->sample_type |= PERF_SAMPLE_RAW;
469 attr->sample_type |= PERF_SAMPLE_TIME;
470 attr->sample_type |= PERF_SAMPLE_CPU;
471
472 attr->sample_period = 1;
473
474
475 return EVT_HANDLED;
476}
477
478/* sys + ':' + event + ':' + flags*/
479#define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
480static enum event_result
481parse_multiple_tracepoint_event(struct perf_evlist *evlist, char *sys_name,
482 const char *evt_exp, char *flags)
483{
484 char evt_path[MAXPATHLEN];
485 struct dirent *evt_ent;
486 DIR *evt_dir;
487
488 snprintf(evt_path, MAXPATHLEN, "%s/%s", debugfs_path, sys_name);
489 evt_dir = opendir(evt_path);
490
491 if (!evt_dir) {
492 perror("Can't open event dir");
493 return EVT_FAILED;
494 }
495
496 while ((evt_ent = readdir(evt_dir))) {
497 char event_opt[MAX_EVOPT_LEN + 1];
498 int len;
499
500 if (!strcmp(evt_ent->d_name, ".")
501 || !strcmp(evt_ent->d_name, "..")
502 || !strcmp(evt_ent->d_name, "enable")
503 || !strcmp(evt_ent->d_name, "filter"))
504 continue;
505
506 if (!strglobmatch(evt_ent->d_name, evt_exp))
507 continue;
508
509 len = snprintf(event_opt, MAX_EVOPT_LEN, "%s:%s%s%s", sys_name,
510 evt_ent->d_name, flags ? ":" : "",
511 flags ?: "");
512 if (len < 0)
513 return EVT_FAILED;
514
515 if (parse_events(evlist, event_opt, 0))
516 return EVT_FAILED;
517 }
518
519 return EVT_HANDLED_ALL;
520}
521
522static enum event_result
523parse_tracepoint_event(struct perf_evlist *evlist, const char **strp,
524 struct perf_event_attr *attr)
525{
526 const char *evt_name;
527 char *flags = NULL, *comma_loc;
528 char sys_name[MAX_EVENT_LENGTH];
529 unsigned int sys_length, evt_length;
530
531 if (debugfs_valid_mountpoint(debugfs_path))
532 return 0;
533
534 evt_name = strchr(*strp, ':');
535 if (!evt_name)
536 return EVT_FAILED;
537
538 sys_length = evt_name - *strp;
539 if (sys_length >= MAX_EVENT_LENGTH)
540 return 0;
541
542 strncpy(sys_name, *strp, sys_length);
543 sys_name[sys_length] = '\0';
544 evt_name = evt_name + 1;
545
546 comma_loc = strchr(evt_name, ',');
547 if (comma_loc) {
548 /* take the event name up to the comma */
549 evt_name = strndup(evt_name, comma_loc - evt_name);
550 }
551 flags = strchr(evt_name, ':');
552 if (flags) {
553 /* split it out: */
554 evt_name = strndup(evt_name, flags - evt_name);
555 flags++;
556 }
557
558 evt_length = strlen(evt_name);
559 if (evt_length >= MAX_EVENT_LENGTH)
560 return EVT_FAILED;
561 if (strpbrk(evt_name, "*?")) {
562 *strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */
563 return parse_multiple_tracepoint_event(evlist, sys_name,
564 evt_name, flags);
565 } else {
566 return parse_single_tracepoint_event(sys_name, evt_name,
567 evt_length, attr, strp);
568 }
569}
570
571static enum event_result
572parse_breakpoint_type(const char *type, const char **strp,
573 struct perf_event_attr *attr)
574{
575 int i;
576
577 for (i = 0; i < 3; i++) {
578 if (!type[i])
579 break;
580
581 switch (type[i]) {
582 case 'r':
583 attr->bp_type |= HW_BREAKPOINT_R;
584 break;
585 case 'w':
586 attr->bp_type |= HW_BREAKPOINT_W;
587 break;
588 case 'x':
589 attr->bp_type |= HW_BREAKPOINT_X;
590 break;
591 default:
592 return EVT_FAILED;
593 }
594 }
595 if (!attr->bp_type) /* Default */
596 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
597
598 *strp = type + i;
599
600 return EVT_HANDLED;
601}
602
603static enum event_result
604parse_breakpoint_event(const char **strp, struct perf_event_attr *attr)
605{
606 const char *target;
607 const char *type;
608 char *endaddr;
609 u64 addr;
610 enum event_result err;
611
612 target = strchr(*strp, ':');
613 if (!target)
614 return EVT_FAILED;
615
616 if (strncmp(*strp, "mem", target - *strp) != 0)
617 return EVT_FAILED;
618
619 target++;
620
621 addr = strtoull(target, &endaddr, 0);
622 if (target == endaddr)
623 return EVT_FAILED;
624
625 attr->bp_addr = addr;
626 *strp = endaddr;
627
628 type = strchr(target, ':');
629
630 /* If no type is defined, just rw as default */
631 if (!type) {
632 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
633 } else {
634 err = parse_breakpoint_type(++type, strp, attr);
635 if (err == EVT_FAILED)
636 return EVT_FAILED;
637 }
638
639 /*
640 * We should find a nice way to override the access length
641 * Provide some defaults for now
642 */
643 if (attr->bp_type == HW_BREAKPOINT_X)
644 attr->bp_len = sizeof(long);
645 else
646 attr->bp_len = HW_BREAKPOINT_LEN_4;
647
648 attr->type = PERF_TYPE_BREAKPOINT;
649
650 return EVT_HANDLED;
651}
652
653static int check_events(const char *str, unsigned int i)
654{
655 int n;
656
657 n = strlen(event_symbols[i].symbol);
658 if (!strncasecmp(str, event_symbols[i].symbol, n))
659 return n;
660
661 n = strlen(event_symbols[i].alias);
662 if (n) {
663 if (!strncasecmp(str, event_symbols[i].alias, n))
664 return n;
665 }
666
667 return 0;
668}
669
670static enum event_result
671parse_symbolic_event(const char **strp, struct perf_event_attr *attr)
672{
673 const char *str = *strp;
674 unsigned int i;
675 int n;
676
677 for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
678 n = check_events(str, i);
679 if (n > 0) {
680 attr->type = event_symbols[i].type;
681 attr->config = event_symbols[i].config;
682 *strp = str + n;
683 return EVT_HANDLED;
684 }
685 }
686 return EVT_FAILED;
687}
688
689static enum event_result
690parse_raw_event(const char **strp, struct perf_event_attr *attr)
691{
692 const char *str = *strp;
693 u64 config;
694 int n;
695
696 if (*str != 'r')
697 return EVT_FAILED;
698 n = hex2u64(str + 1, &config);
699 if (n > 0) {
700 const char *end = str + n + 1;
701 if (*end != '\0' && *end != ',' && *end != ':')
702 return EVT_FAILED;
703
704 *strp = end;
705 attr->type = PERF_TYPE_RAW;
706 attr->config = config;
707 return EVT_HANDLED;
708 }
709 return EVT_FAILED;
710}
711
712static enum event_result
713parse_numeric_event(const char **strp, struct perf_event_attr *attr)
714{
715 const char *str = *strp;
716 char *endp;
717 unsigned long type;
718 u64 config;
719
720 type = strtoul(str, &endp, 0);
721 if (endp > str && type < PERF_TYPE_MAX && *endp == ':') {
722 str = endp + 1;
723 config = strtoul(str, &endp, 0);
724 if (endp > str) {
725 attr->type = type;
726 attr->config = config;
727 *strp = endp;
728 return EVT_HANDLED;
729 }
730 }
731 return EVT_FAILED;
732}
733
734static int
735parse_event_modifier(const char **strp, struct perf_event_attr *attr)
736{
737 const char *str = *strp;
738 int exclude = 0;
739 int eu = 0, ek = 0, eh = 0, precise = 0;
740
741 if (!*str)
742 return 0;
743
744 if (*str == ',')
745 return 0;
746
747 if (*str++ != ':')
748 return -1;
749
750 while (*str) {
751 if (*str == 'u') {
752 if (!exclude)
753 exclude = eu = ek = eh = 1;
754 eu = 0;
755 } else if (*str == 'k') {
756 if (!exclude)
757 exclude = eu = ek = eh = 1;
758 ek = 0;
759 } else if (*str == 'h') {
760 if (!exclude)
761 exclude = eu = ek = eh = 1;
762 eh = 0;
763 } else if (*str == 'p') {
764 precise++;
765 } else
766 break;
767
768 ++str;
769 }
770 if (str < *strp + 2)
771 return -1;
772
773 *strp = str;
774
775 attr->exclude_user = eu;
776 attr->exclude_kernel = ek;
777 attr->exclude_hv = eh;
778 attr->precise_ip = precise;
779
780 return 0;
781}
782
783/*
784 * Each event can have multiple symbolic names.
785 * Symbolic names are (almost) exactly matched.
786 */
787static enum event_result
788parse_event_symbols(struct perf_evlist *evlist, const char **str,
789 struct perf_event_attr *attr)
790{
791 enum event_result ret;
792
793 ret = parse_tracepoint_event(evlist, str, attr);
794 if (ret != EVT_FAILED)
795 goto modifier;
796
797 ret = parse_raw_event(str, attr);
798 if (ret != EVT_FAILED)
799 goto modifier;
800
801 ret = parse_numeric_event(str, attr);
802 if (ret != EVT_FAILED)
803 goto modifier;
804
805 ret = parse_symbolic_event(str, attr);
806 if (ret != EVT_FAILED)
807 goto modifier;
808
809 ret = parse_generic_hw_event(str, attr);
810 if (ret != EVT_FAILED)
811 goto modifier;
812
813 ret = parse_breakpoint_event(str, attr);
814 if (ret != EVT_FAILED)
815 goto modifier;
816
817 fprintf(stderr, "invalid or unsupported event: '%s'\n", *str);
818 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
819 return EVT_FAILED;
820
821modifier:
822 if (parse_event_modifier(str, attr) < 0) {
823 fprintf(stderr, "invalid event modifier: '%s'\n", *str);
824 fprintf(stderr, "Run 'perf list' for a list of valid events and modifiers\n");
825
826 return EVT_FAILED;
827 }
828
829 return ret;
830}
831
832int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
833{
834 struct perf_event_attr attr;
835 enum event_result ret;
836 const char *ostr;
837
838 for (;;) {
839 ostr = str;
840 memset(&attr, 0, sizeof(attr));
841 ret = parse_event_symbols(evlist, &str, &attr);
842 if (ret == EVT_FAILED)
843 return -1;
844
845 if (!(*str == 0 || *str == ',' || isspace(*str)))
846 return -1;
847
848 if (ret != EVT_HANDLED_ALL) {
849 struct perf_evsel *evsel;
850 evsel = perf_evsel__new(&attr, evlist->nr_entries);
851 if (evsel == NULL)
852 return -1;
853 perf_evlist__add(evlist, evsel);
854
855 evsel->name = calloc(str - ostr + 1, 1);
856 if (!evsel->name)
857 return -1;
858 strncpy(evsel->name, ostr, str - ostr);
859 }
860
861 if (*str == 0)
862 break;
863 if (*str == ',')
864 ++str;
865 while (isspace(*str))
866 ++str;
867 }
868
869 return 0;
870}
871
872int parse_events_option(const struct option *opt, const char *str,
873 int unset __used)
874{
875 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
876 return parse_events(evlist, str, unset);
877}
878
879int parse_filter(const struct option *opt, const char *str,
880 int unset __used)
881{
882 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
883 struct perf_evsel *last = NULL;
884
885 if (evlist->nr_entries > 0)
886 last = list_entry(evlist->entries.prev, struct perf_evsel, node);
887
888 if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
889 fprintf(stderr,
890 "-F option should follow a -e tracepoint option\n");
891 return -1;
892 }
893
894 last->filter = strdup(str);
895 if (last->filter == NULL) {
896 fprintf(stderr, "not enough memory to hold filter string\n");
897 return -1;
898 }
899
900 return 0;
901}
902
903static const char * const event_type_descriptors[] = {
904 "Hardware event",
905 "Software event",
906 "Tracepoint event",
907 "Hardware cache event",
908 "Raw hardware event descriptor",
909 "Hardware breakpoint",
910};
911
912/*
913 * Print the events from <debugfs_mount_point>/tracing/events
914 */
915
916void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
917{
918 DIR *sys_dir, *evt_dir;
919 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
920 char evt_path[MAXPATHLEN];
921 char dir_path[MAXPATHLEN];
922
923 if (debugfs_valid_mountpoint(debugfs_path))
924 return;
925
926 sys_dir = opendir(debugfs_path);
927 if (!sys_dir)
928 return;
929
930 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
931 if (subsys_glob != NULL &&
932 !strglobmatch(sys_dirent.d_name, subsys_glob))
933 continue;
934
935 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
936 sys_dirent.d_name);
937 evt_dir = opendir(dir_path);
938 if (!evt_dir)
939 continue;
940
941 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
942 if (event_glob != NULL &&
943 !strglobmatch(evt_dirent.d_name, event_glob))
944 continue;
945
946 snprintf(evt_path, MAXPATHLEN, "%s:%s",
947 sys_dirent.d_name, evt_dirent.d_name);
948 printf(" %-50s [%s]\n", evt_path,
949 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
950 }
951 closedir(evt_dir);
952 }
953 closedir(sys_dir);
954}
955
956/*
957 * Check whether event is in <debugfs_mount_point>/tracing/events
958 */
959
960int is_valid_tracepoint(const char *event_string)
961{
962 DIR *sys_dir, *evt_dir;
963 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
964 char evt_path[MAXPATHLEN];
965 char dir_path[MAXPATHLEN];
966
967 if (debugfs_valid_mountpoint(debugfs_path))
968 return 0;
969
970 sys_dir = opendir(debugfs_path);
971 if (!sys_dir)
972 return 0;
973
974 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
975
976 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
977 sys_dirent.d_name);
978 evt_dir = opendir(dir_path);
979 if (!evt_dir)
980 continue;
981
982 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
983 snprintf(evt_path, MAXPATHLEN, "%s:%s",
984 sys_dirent.d_name, evt_dirent.d_name);
985 if (!strcmp(evt_path, event_string)) {
986 closedir(evt_dir);
987 closedir(sys_dir);
988 return 1;
989 }
990 }
991 closedir(evt_dir);
992 }
993 closedir(sys_dir);
994 return 0;
995}
996
997void print_events_type(u8 type)
998{
999 struct event_symbol *syms = event_symbols;
1000 unsigned int i;
1001 char name[64];
1002
1003 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
1004 if (type != syms->type)
1005 continue;
1006
1007 if (strlen(syms->alias))
1008 snprintf(name, sizeof(name), "%s OR %s",
1009 syms->symbol, syms->alias);
1010 else
1011 snprintf(name, sizeof(name), "%s", syms->symbol);
1012
1013 printf(" %-50s [%s]\n", name,
1014 event_type_descriptors[type]);
1015 }
1016}
1017
1018int print_hwcache_events(const char *event_glob)
1019{
1020 unsigned int type, op, i, printed = 0;
1021
1022 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1023 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1024 /* skip invalid cache type */
1025 if (!is_cache_op_valid(type, op))
1026 continue;
1027
1028 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1029 char *name = event_cache_name(type, op, i);
1030
1031 if (event_glob != NULL && !strglobmatch(name, event_glob))
1032 continue;
1033
1034 printf(" %-50s [%s]\n", name,
1035 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1036 ++printed;
1037 }
1038 }
1039 }
1040
1041 return printed;
1042}
1043
1044#define MAX_NAME_LEN 100
1045
1046/*
1047 * Print the help text for the event symbols:
1048 */
1049void print_events(const char *event_glob)
1050{
1051 unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
1052 struct event_symbol *syms = event_symbols;
1053 char name[MAX_NAME_LEN];
1054
1055 printf("\n");
1056 printf("List of pre-defined events (to be used in -e):\n");
1057
1058 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
1059 type = syms->type;
1060
1061 if (type != prev_type && printed) {
1062 printf("\n");
1063 printed = 0;
1064 ntypes_printed++;
1065 }
1066
1067 if (event_glob != NULL &&
1068 !(strglobmatch(syms->symbol, event_glob) ||
1069 (syms->alias && strglobmatch(syms->alias, event_glob))))
1070 continue;
1071
1072 if (strlen(syms->alias))
1073 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1074 else
1075 strncpy(name, syms->symbol, MAX_NAME_LEN);
1076 printf(" %-50s [%s]\n", name,
1077 event_type_descriptors[type]);
1078
1079 prev_type = type;
1080 ++printed;
1081 }
1082
1083 if (ntypes_printed) {
1084 printed = 0;
1085 printf("\n");
1086 }
1087 print_hwcache_events(event_glob);
1088
1089 if (event_glob != NULL)
1090 return;
1091
1092 printf("\n");
1093 printf(" %-50s [%s]\n",
1094 "rNNN (see 'perf list --help' on how to encode it)",
1095 event_type_descriptors[PERF_TYPE_RAW]);
1096 printf("\n");
1097
1098 printf(" %-50s [%s]\n",
1099 "mem:<addr>[:access]",
1100 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1101 printf("\n");
1102
1103 print_tracepoint_events(NULL, NULL);
1104}
1#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 "linux/string.h"
10#include "symbol.h"
11#include "cache.h"
12#include "header.h"
13#include <api/fs/debugfs.h>
14#include "parse-events-bison.h"
15#define YY_EXTRA_TYPE int
16#include "parse-events-flex.h"
17#include "pmu.h"
18#include "thread_map.h"
19
20#define MAX_NAME_LEN 100
21
22struct event_symbol {
23 const char *symbol;
24 const char *alias;
25};
26
27#ifdef PARSER_DEBUG
28extern int parse_events_debug;
29#endif
30int parse_events_parse(void *data, void *scanner);
31
32static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
33 [PERF_COUNT_HW_CPU_CYCLES] = {
34 .symbol = "cpu-cycles",
35 .alias = "cycles",
36 },
37 [PERF_COUNT_HW_INSTRUCTIONS] = {
38 .symbol = "instructions",
39 .alias = "",
40 },
41 [PERF_COUNT_HW_CACHE_REFERENCES] = {
42 .symbol = "cache-references",
43 .alias = "",
44 },
45 [PERF_COUNT_HW_CACHE_MISSES] = {
46 .symbol = "cache-misses",
47 .alias = "",
48 },
49 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
50 .symbol = "branch-instructions",
51 .alias = "branches",
52 },
53 [PERF_COUNT_HW_BRANCH_MISSES] = {
54 .symbol = "branch-misses",
55 .alias = "",
56 },
57 [PERF_COUNT_HW_BUS_CYCLES] = {
58 .symbol = "bus-cycles",
59 .alias = "",
60 },
61 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
62 .symbol = "stalled-cycles-frontend",
63 .alias = "idle-cycles-frontend",
64 },
65 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
66 .symbol = "stalled-cycles-backend",
67 .alias = "idle-cycles-backend",
68 },
69 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
70 .symbol = "ref-cycles",
71 .alias = "",
72 },
73};
74
75static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
76 [PERF_COUNT_SW_CPU_CLOCK] = {
77 .symbol = "cpu-clock",
78 .alias = "",
79 },
80 [PERF_COUNT_SW_TASK_CLOCK] = {
81 .symbol = "task-clock",
82 .alias = "",
83 },
84 [PERF_COUNT_SW_PAGE_FAULTS] = {
85 .symbol = "page-faults",
86 .alias = "faults",
87 },
88 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
89 .symbol = "context-switches",
90 .alias = "cs",
91 },
92 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
93 .symbol = "cpu-migrations",
94 .alias = "migrations",
95 },
96 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
97 .symbol = "minor-faults",
98 .alias = "",
99 },
100 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
101 .symbol = "major-faults",
102 .alias = "",
103 },
104 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
105 .symbol = "alignment-faults",
106 .alias = "",
107 },
108 [PERF_COUNT_SW_EMULATION_FAULTS] = {
109 .symbol = "emulation-faults",
110 .alias = "",
111 },
112 [PERF_COUNT_SW_DUMMY] = {
113 .symbol = "dummy",
114 .alias = "",
115 },
116};
117
118#define __PERF_EVENT_FIELD(config, name) \
119 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
120
121#define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
122#define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
123#define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
124#define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
125
126#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
127 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
128 if (sys_dirent.d_type == DT_DIR && \
129 (strcmp(sys_dirent.d_name, ".")) && \
130 (strcmp(sys_dirent.d_name, "..")))
131
132static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
133{
134 char evt_path[MAXPATHLEN];
135 int fd;
136
137 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
138 sys_dir->d_name, evt_dir->d_name);
139 fd = open(evt_path, O_RDONLY);
140 if (fd < 0)
141 return -EINVAL;
142 close(fd);
143
144 return 0;
145}
146
147#define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
148 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
149 if (evt_dirent.d_type == DT_DIR && \
150 (strcmp(evt_dirent.d_name, ".")) && \
151 (strcmp(evt_dirent.d_name, "..")) && \
152 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
153
154#define MAX_EVENT_LENGTH 512
155
156
157struct tracepoint_path *tracepoint_id_to_path(u64 config)
158{
159 struct tracepoint_path *path = NULL;
160 DIR *sys_dir, *evt_dir;
161 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
162 char id_buf[24];
163 int fd;
164 u64 id;
165 char evt_path[MAXPATHLEN];
166 char dir_path[MAXPATHLEN];
167
168 if (debugfs_valid_mountpoint(tracing_events_path))
169 return NULL;
170
171 sys_dir = opendir(tracing_events_path);
172 if (!sys_dir)
173 return NULL;
174
175 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
176
177 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
178 sys_dirent.d_name);
179 evt_dir = opendir(dir_path);
180 if (!evt_dir)
181 continue;
182
183 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
184
185 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
186 evt_dirent.d_name);
187 fd = open(evt_path, O_RDONLY);
188 if (fd < 0)
189 continue;
190 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
191 close(fd);
192 continue;
193 }
194 close(fd);
195 id = atoll(id_buf);
196 if (id == config) {
197 closedir(evt_dir);
198 closedir(sys_dir);
199 path = zalloc(sizeof(*path));
200 path->system = malloc(MAX_EVENT_LENGTH);
201 if (!path->system) {
202 free(path);
203 return NULL;
204 }
205 path->name = malloc(MAX_EVENT_LENGTH);
206 if (!path->name) {
207 zfree(&path->system);
208 free(path);
209 return NULL;
210 }
211 strncpy(path->system, sys_dirent.d_name,
212 MAX_EVENT_LENGTH);
213 strncpy(path->name, evt_dirent.d_name,
214 MAX_EVENT_LENGTH);
215 return path;
216 }
217 }
218 closedir(evt_dir);
219 }
220
221 closedir(sys_dir);
222 return NULL;
223}
224
225struct tracepoint_path *tracepoint_name_to_path(const char *name)
226{
227 struct tracepoint_path *path = zalloc(sizeof(*path));
228 char *str = strchr(name, ':');
229
230 if (path == NULL || str == NULL) {
231 free(path);
232 return NULL;
233 }
234
235 path->system = strndup(name, str - name);
236 path->name = strdup(str+1);
237
238 if (path->system == NULL || path->name == NULL) {
239 zfree(&path->system);
240 zfree(&path->name);
241 free(path);
242 path = NULL;
243 }
244
245 return path;
246}
247
248const char *event_type(int type)
249{
250 switch (type) {
251 case PERF_TYPE_HARDWARE:
252 return "hardware";
253
254 case PERF_TYPE_SOFTWARE:
255 return "software";
256
257 case PERF_TYPE_TRACEPOINT:
258 return "tracepoint";
259
260 case PERF_TYPE_HW_CACHE:
261 return "hardware-cache";
262
263 default:
264 break;
265 }
266
267 return "unknown";
268}
269
270
271
272static struct perf_evsel *
273__add_event(struct list_head *list, int *idx,
274 struct perf_event_attr *attr,
275 char *name, struct cpu_map *cpus)
276{
277 struct perf_evsel *evsel;
278
279 event_attr_init(attr);
280
281 evsel = perf_evsel__new_idx(attr, (*idx)++);
282 if (!evsel)
283 return NULL;
284
285 evsel->cpus = cpus;
286 if (name)
287 evsel->name = strdup(name);
288 list_add_tail(&evsel->node, list);
289 return evsel;
290}
291
292static int add_event(struct list_head *list, int *idx,
293 struct perf_event_attr *attr, char *name)
294{
295 return __add_event(list, idx, attr, name, NULL) ? 0 : -ENOMEM;
296}
297
298static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
299{
300 int i, j;
301 int n, longest = -1;
302
303 for (i = 0; i < size; i++) {
304 for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
305 n = strlen(names[i][j]);
306 if (n > longest && !strncasecmp(str, names[i][j], n))
307 longest = n;
308 }
309 if (longest > 0)
310 return i;
311 }
312
313 return -1;
314}
315
316int parse_events_add_cache(struct list_head *list, int *idx,
317 char *type, char *op_result1, char *op_result2)
318{
319 struct perf_event_attr attr;
320 char name[MAX_NAME_LEN];
321 int cache_type = -1, cache_op = -1, cache_result = -1;
322 char *op_result[2] = { op_result1, op_result2 };
323 int i, n;
324
325 /*
326 * No fallback - if we cannot get a clear cache type
327 * then bail out:
328 */
329 cache_type = parse_aliases(type, perf_evsel__hw_cache,
330 PERF_COUNT_HW_CACHE_MAX);
331 if (cache_type == -1)
332 return -EINVAL;
333
334 n = snprintf(name, MAX_NAME_LEN, "%s", type);
335
336 for (i = 0; (i < 2) && (op_result[i]); i++) {
337 char *str = op_result[i];
338
339 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
340
341 if (cache_op == -1) {
342 cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
343 PERF_COUNT_HW_CACHE_OP_MAX);
344 if (cache_op >= 0) {
345 if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
346 return -EINVAL;
347 continue;
348 }
349 }
350
351 if (cache_result == -1) {
352 cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
353 PERF_COUNT_HW_CACHE_RESULT_MAX);
354 if (cache_result >= 0)
355 continue;
356 }
357 }
358
359 /*
360 * Fall back to reads:
361 */
362 if (cache_op == -1)
363 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
364
365 /*
366 * Fall back to accesses:
367 */
368 if (cache_result == -1)
369 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
370
371 memset(&attr, 0, sizeof(attr));
372 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
373 attr.type = PERF_TYPE_HW_CACHE;
374 return add_event(list, idx, &attr, name);
375}
376
377static int add_tracepoint(struct list_head *list, int *idx,
378 char *sys_name, char *evt_name)
379{
380 struct perf_evsel *evsel;
381
382 evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++);
383 if (!evsel)
384 return -ENOMEM;
385
386 list_add_tail(&evsel->node, list);
387
388 return 0;
389}
390
391static int add_tracepoint_multi_event(struct list_head *list, int *idx,
392 char *sys_name, char *evt_name)
393{
394 char evt_path[MAXPATHLEN];
395 struct dirent *evt_ent;
396 DIR *evt_dir;
397 int ret = 0;
398
399 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
400 evt_dir = opendir(evt_path);
401 if (!evt_dir) {
402 perror("Can't open event dir");
403 return -1;
404 }
405
406 while (!ret && (evt_ent = readdir(evt_dir))) {
407 if (!strcmp(evt_ent->d_name, ".")
408 || !strcmp(evt_ent->d_name, "..")
409 || !strcmp(evt_ent->d_name, "enable")
410 || !strcmp(evt_ent->d_name, "filter"))
411 continue;
412
413 if (!strglobmatch(evt_ent->d_name, evt_name))
414 continue;
415
416 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name);
417 }
418
419 closedir(evt_dir);
420 return ret;
421}
422
423static int add_tracepoint_event(struct list_head *list, int *idx,
424 char *sys_name, char *evt_name)
425{
426 return strpbrk(evt_name, "*?") ?
427 add_tracepoint_multi_event(list, idx, sys_name, evt_name) :
428 add_tracepoint(list, idx, sys_name, evt_name);
429}
430
431static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
432 char *sys_name, char *evt_name)
433{
434 struct dirent *events_ent;
435 DIR *events_dir;
436 int ret = 0;
437
438 events_dir = opendir(tracing_events_path);
439 if (!events_dir) {
440 perror("Can't open event dir");
441 return -1;
442 }
443
444 while (!ret && (events_ent = readdir(events_dir))) {
445 if (!strcmp(events_ent->d_name, ".")
446 || !strcmp(events_ent->d_name, "..")
447 || !strcmp(events_ent->d_name, "enable")
448 || !strcmp(events_ent->d_name, "header_event")
449 || !strcmp(events_ent->d_name, "header_page"))
450 continue;
451
452 if (!strglobmatch(events_ent->d_name, sys_name))
453 continue;
454
455 ret = add_tracepoint_event(list, idx, events_ent->d_name,
456 evt_name);
457 }
458
459 closedir(events_dir);
460 return ret;
461}
462
463int parse_events_add_tracepoint(struct list_head *list, int *idx,
464 char *sys, char *event)
465{
466 int ret;
467
468 ret = debugfs_valid_mountpoint(tracing_events_path);
469 if (ret)
470 return ret;
471
472 if (strpbrk(sys, "*?"))
473 return add_tracepoint_multi_sys(list, idx, sys, event);
474 else
475 return add_tracepoint_event(list, idx, sys, event);
476}
477
478static int
479parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
480{
481 int i;
482
483 for (i = 0; i < 3; i++) {
484 if (!type || !type[i])
485 break;
486
487#define CHECK_SET_TYPE(bit) \
488do { \
489 if (attr->bp_type & bit) \
490 return -EINVAL; \
491 else \
492 attr->bp_type |= bit; \
493} while (0)
494
495 switch (type[i]) {
496 case 'r':
497 CHECK_SET_TYPE(HW_BREAKPOINT_R);
498 break;
499 case 'w':
500 CHECK_SET_TYPE(HW_BREAKPOINT_W);
501 break;
502 case 'x':
503 CHECK_SET_TYPE(HW_BREAKPOINT_X);
504 break;
505 default:
506 return -EINVAL;
507 }
508 }
509
510#undef CHECK_SET_TYPE
511
512 if (!attr->bp_type) /* Default */
513 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
514
515 return 0;
516}
517
518int parse_events_add_breakpoint(struct list_head *list, int *idx,
519 void *ptr, char *type)
520{
521 struct perf_event_attr attr;
522
523 memset(&attr, 0, sizeof(attr));
524 attr.bp_addr = (unsigned long) ptr;
525
526 if (parse_breakpoint_type(type, &attr))
527 return -EINVAL;
528
529 /*
530 * We should find a nice way to override the access length
531 * Provide some defaults for now
532 */
533 if (attr.bp_type == HW_BREAKPOINT_X)
534 attr.bp_len = sizeof(long);
535 else
536 attr.bp_len = HW_BREAKPOINT_LEN_4;
537
538 attr.type = PERF_TYPE_BREAKPOINT;
539 attr.sample_period = 1;
540
541 return add_event(list, idx, &attr, NULL);
542}
543
544static int config_term(struct perf_event_attr *attr,
545 struct parse_events_term *term)
546{
547#define CHECK_TYPE_VAL(type) \
548do { \
549 if (PARSE_EVENTS__TERM_TYPE_ ## type != term->type_val) \
550 return -EINVAL; \
551} while (0)
552
553 switch (term->type_term) {
554 case PARSE_EVENTS__TERM_TYPE_CONFIG:
555 CHECK_TYPE_VAL(NUM);
556 attr->config = term->val.num;
557 break;
558 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
559 CHECK_TYPE_VAL(NUM);
560 attr->config1 = term->val.num;
561 break;
562 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
563 CHECK_TYPE_VAL(NUM);
564 attr->config2 = term->val.num;
565 break;
566 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
567 CHECK_TYPE_VAL(NUM);
568 attr->sample_period = term->val.num;
569 break;
570 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
571 /*
572 * TODO uncomment when the field is available
573 * attr->branch_sample_type = term->val.num;
574 */
575 break;
576 case PARSE_EVENTS__TERM_TYPE_NAME:
577 CHECK_TYPE_VAL(STR);
578 break;
579 default:
580 return -EINVAL;
581 }
582
583 return 0;
584#undef CHECK_TYPE_VAL
585}
586
587static int config_attr(struct perf_event_attr *attr,
588 struct list_head *head, int fail)
589{
590 struct parse_events_term *term;
591
592 list_for_each_entry(term, head, list)
593 if (config_term(attr, term) && fail)
594 return -EINVAL;
595
596 return 0;
597}
598
599int parse_events_add_numeric(struct list_head *list, int *idx,
600 u32 type, u64 config,
601 struct list_head *head_config)
602{
603 struct perf_event_attr attr;
604
605 memset(&attr, 0, sizeof(attr));
606 attr.type = type;
607 attr.config = config;
608
609 if (head_config &&
610 config_attr(&attr, head_config, 1))
611 return -EINVAL;
612
613 return add_event(list, idx, &attr, NULL);
614}
615
616static int parse_events__is_name_term(struct parse_events_term *term)
617{
618 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
619}
620
621static char *pmu_event_name(struct list_head *head_terms)
622{
623 struct parse_events_term *term;
624
625 list_for_each_entry(term, head_terms, list)
626 if (parse_events__is_name_term(term))
627 return term->val.str;
628
629 return NULL;
630}
631
632int parse_events_add_pmu(struct list_head *list, int *idx,
633 char *name, struct list_head *head_config)
634{
635 struct perf_event_attr attr;
636 struct perf_pmu *pmu;
637 struct perf_evsel *evsel;
638 const char *unit;
639 double scale;
640
641 pmu = perf_pmu__find(name);
642 if (!pmu)
643 return -EINVAL;
644
645 memset(&attr, 0, sizeof(attr));
646
647 if (perf_pmu__check_alias(pmu, head_config, &unit, &scale))
648 return -EINVAL;
649
650 /*
651 * Configure hardcoded terms first, no need to check
652 * return value when called with fail == 0 ;)
653 */
654 config_attr(&attr, head_config, 0);
655
656 if (perf_pmu__config(pmu, &attr, head_config))
657 return -EINVAL;
658
659 evsel = __add_event(list, idx, &attr, pmu_event_name(head_config),
660 pmu->cpus);
661 if (evsel) {
662 evsel->unit = unit;
663 evsel->scale = scale;
664 }
665
666 return evsel ? 0 : -ENOMEM;
667}
668
669int parse_events__modifier_group(struct list_head *list,
670 char *event_mod)
671{
672 return parse_events__modifier_event(list, event_mod, true);
673}
674
675void parse_events__set_leader(char *name, struct list_head *list)
676{
677 struct perf_evsel *leader;
678
679 __perf_evlist__set_leader(list);
680 leader = list_entry(list->next, struct perf_evsel, node);
681 leader->group_name = name ? strdup(name) : NULL;
682}
683
684/* list_event is assumed to point to malloc'ed memory */
685void parse_events_update_lists(struct list_head *list_event,
686 struct list_head *list_all)
687{
688 /*
689 * Called for single event definition. Update the
690 * 'all event' list, and reinit the 'single event'
691 * list, for next event definition.
692 */
693 list_splice_tail(list_event, list_all);
694 free(list_event);
695}
696
697struct event_modifier {
698 int eu;
699 int ek;
700 int eh;
701 int eH;
702 int eG;
703 int precise;
704 int exclude_GH;
705 int sample_read;
706 int pinned;
707};
708
709static int get_event_modifier(struct event_modifier *mod, char *str,
710 struct perf_evsel *evsel)
711{
712 int eu = evsel ? evsel->attr.exclude_user : 0;
713 int ek = evsel ? evsel->attr.exclude_kernel : 0;
714 int eh = evsel ? evsel->attr.exclude_hv : 0;
715 int eH = evsel ? evsel->attr.exclude_host : 0;
716 int eG = evsel ? evsel->attr.exclude_guest : 0;
717 int precise = evsel ? evsel->attr.precise_ip : 0;
718 int sample_read = 0;
719 int pinned = evsel ? evsel->attr.pinned : 0;
720
721 int exclude = eu | ek | eh;
722 int exclude_GH = evsel ? evsel->exclude_GH : 0;
723
724 memset(mod, 0, sizeof(*mod));
725
726 while (*str) {
727 if (*str == 'u') {
728 if (!exclude)
729 exclude = eu = ek = eh = 1;
730 eu = 0;
731 } else if (*str == 'k') {
732 if (!exclude)
733 exclude = eu = ek = eh = 1;
734 ek = 0;
735 } else if (*str == 'h') {
736 if (!exclude)
737 exclude = eu = ek = eh = 1;
738 eh = 0;
739 } else if (*str == 'G') {
740 if (!exclude_GH)
741 exclude_GH = eG = eH = 1;
742 eG = 0;
743 } else if (*str == 'H') {
744 if (!exclude_GH)
745 exclude_GH = eG = eH = 1;
746 eH = 0;
747 } else if (*str == 'p') {
748 precise++;
749 /* use of precise requires exclude_guest */
750 if (!exclude_GH)
751 eG = 1;
752 } else if (*str == 'S') {
753 sample_read = 1;
754 } else if (*str == 'D') {
755 pinned = 1;
756 } else
757 break;
758
759 ++str;
760 }
761
762 /*
763 * precise ip:
764 *
765 * 0 - SAMPLE_IP can have arbitrary skid
766 * 1 - SAMPLE_IP must have constant skid
767 * 2 - SAMPLE_IP requested to have 0 skid
768 * 3 - SAMPLE_IP must have 0 skid
769 *
770 * See also PERF_RECORD_MISC_EXACT_IP
771 */
772 if (precise > 3)
773 return -EINVAL;
774
775 mod->eu = eu;
776 mod->ek = ek;
777 mod->eh = eh;
778 mod->eH = eH;
779 mod->eG = eG;
780 mod->precise = precise;
781 mod->exclude_GH = exclude_GH;
782 mod->sample_read = sample_read;
783 mod->pinned = pinned;
784
785 return 0;
786}
787
788/*
789 * Basic modifier sanity check to validate it contains only one
790 * instance of any modifier (apart from 'p') present.
791 */
792static int check_modifier(char *str)
793{
794 char *p = str;
795
796 /* The sizeof includes 0 byte as well. */
797 if (strlen(str) > (sizeof("ukhGHpppSD") - 1))
798 return -1;
799
800 while (*p) {
801 if (*p != 'p' && strchr(p + 1, *p))
802 return -1;
803 p++;
804 }
805
806 return 0;
807}
808
809int parse_events__modifier_event(struct list_head *list, char *str, bool add)
810{
811 struct perf_evsel *evsel;
812 struct event_modifier mod;
813
814 if (str == NULL)
815 return 0;
816
817 if (check_modifier(str))
818 return -EINVAL;
819
820 if (!add && get_event_modifier(&mod, str, NULL))
821 return -EINVAL;
822
823 __evlist__for_each(list, evsel) {
824 if (add && get_event_modifier(&mod, str, evsel))
825 return -EINVAL;
826
827 evsel->attr.exclude_user = mod.eu;
828 evsel->attr.exclude_kernel = mod.ek;
829 evsel->attr.exclude_hv = mod.eh;
830 evsel->attr.precise_ip = mod.precise;
831 evsel->attr.exclude_host = mod.eH;
832 evsel->attr.exclude_guest = mod.eG;
833 evsel->exclude_GH = mod.exclude_GH;
834 evsel->sample_read = mod.sample_read;
835
836 if (perf_evsel__is_group_leader(evsel))
837 evsel->attr.pinned = mod.pinned;
838 }
839
840 return 0;
841}
842
843int parse_events_name(struct list_head *list, char *name)
844{
845 struct perf_evsel *evsel;
846
847 __evlist__for_each(list, evsel) {
848 if (!evsel->name)
849 evsel->name = strdup(name);
850 }
851
852 return 0;
853}
854
855static int parse_events__scanner(const char *str, void *data, int start_token);
856
857static int parse_events_fixup(int ret, const char *str, void *data,
858 int start_token)
859{
860 char *o = strdup(str);
861 char *s = NULL;
862 char *t = o;
863 char *p;
864 int len = 0;
865
866 if (!o)
867 return ret;
868 while ((p = strsep(&t, ",")) != NULL) {
869 if (s)
870 str_append(&s, &len, ",");
871 str_append(&s, &len, "cpu/");
872 str_append(&s, &len, p);
873 str_append(&s, &len, "/");
874 }
875 free(o);
876 if (!s)
877 return -ENOMEM;
878 return parse_events__scanner(s, data, start_token);
879}
880
881static int parse_events__scanner(const char *str, void *data, int start_token)
882{
883 YY_BUFFER_STATE buffer;
884 void *scanner;
885 int ret;
886
887 ret = parse_events_lex_init_extra(start_token, &scanner);
888 if (ret)
889 return ret;
890
891 buffer = parse_events__scan_string(str, scanner);
892
893#ifdef PARSER_DEBUG
894 parse_events_debug = 1;
895#endif
896 ret = parse_events_parse(data, scanner);
897
898 parse_events__flush_buffer(buffer, scanner);
899 parse_events__delete_buffer(buffer, scanner);
900 parse_events_lex_destroy(scanner);
901 if (ret && !strchr(str, '/'))
902 ret = parse_events_fixup(ret, str, data, start_token);
903 return ret;
904}
905
906/*
907 * parse event config string, return a list of event terms.
908 */
909int parse_events_terms(struct list_head *terms, const char *str)
910{
911 struct parse_events_terms data = {
912 .terms = NULL,
913 };
914 int ret;
915
916 ret = parse_events__scanner(str, &data, PE_START_TERMS);
917 if (!ret) {
918 list_splice(data.terms, terms);
919 zfree(&data.terms);
920 return 0;
921 }
922
923 if (data.terms)
924 parse_events__free_terms(data.terms);
925 return ret;
926}
927
928int parse_events(struct perf_evlist *evlist, const char *str)
929{
930 struct parse_events_evlist data = {
931 .list = LIST_HEAD_INIT(data.list),
932 .idx = evlist->nr_entries,
933 };
934 int ret;
935
936 ret = parse_events__scanner(str, &data, PE_START_EVENTS);
937 if (!ret) {
938 int entries = data.idx - evlist->nr_entries;
939 perf_evlist__splice_list_tail(evlist, &data.list, entries);
940 evlist->nr_groups += data.nr_groups;
941 return 0;
942 }
943
944 /*
945 * There are 2 users - builtin-record and builtin-test objects.
946 * Both call perf_evlist__delete in case of error, so we dont
947 * need to bother.
948 */
949 return ret;
950}
951
952int parse_events_option(const struct option *opt, const char *str,
953 int unset __maybe_unused)
954{
955 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
956 int ret = parse_events(evlist, str);
957
958 if (ret) {
959 fprintf(stderr, "invalid or unsupported event: '%s'\n", str);
960 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
961 }
962 return ret;
963}
964
965int parse_filter(const struct option *opt, const char *str,
966 int unset __maybe_unused)
967{
968 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
969 struct perf_evsel *last = NULL;
970
971 if (evlist->nr_entries > 0)
972 last = perf_evlist__last(evlist);
973
974 if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
975 fprintf(stderr,
976 "-F option should follow a -e tracepoint option\n");
977 return -1;
978 }
979
980 last->filter = strdup(str);
981 if (last->filter == NULL) {
982 fprintf(stderr, "not enough memory to hold filter string\n");
983 return -1;
984 }
985
986 return 0;
987}
988
989static const char * const event_type_descriptors[] = {
990 "Hardware event",
991 "Software event",
992 "Tracepoint event",
993 "Hardware cache event",
994 "Raw hardware event descriptor",
995 "Hardware breakpoint",
996};
997
998/*
999 * Print the events from <debugfs_mount_point>/tracing/events
1000 */
1001
1002void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
1003 bool name_only)
1004{
1005 DIR *sys_dir, *evt_dir;
1006 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1007 char evt_path[MAXPATHLEN];
1008 char dir_path[MAXPATHLEN];
1009
1010 if (debugfs_valid_mountpoint(tracing_events_path)) {
1011 printf(" [ Tracepoints not available: %s ]\n", strerror(errno));
1012 return;
1013 }
1014
1015 sys_dir = opendir(tracing_events_path);
1016 if (!sys_dir)
1017 return;
1018
1019 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1020 if (subsys_glob != NULL &&
1021 !strglobmatch(sys_dirent.d_name, subsys_glob))
1022 continue;
1023
1024 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1025 sys_dirent.d_name);
1026 evt_dir = opendir(dir_path);
1027 if (!evt_dir)
1028 continue;
1029
1030 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1031 if (event_glob != NULL &&
1032 !strglobmatch(evt_dirent.d_name, event_glob))
1033 continue;
1034
1035 if (name_only) {
1036 printf("%s:%s ", sys_dirent.d_name, evt_dirent.d_name);
1037 continue;
1038 }
1039
1040 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1041 sys_dirent.d_name, evt_dirent.d_name);
1042 printf(" %-50s [%s]\n", evt_path,
1043 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1044 }
1045 closedir(evt_dir);
1046 }
1047 closedir(sys_dir);
1048}
1049
1050/*
1051 * Check whether event is in <debugfs_mount_point>/tracing/events
1052 */
1053
1054int is_valid_tracepoint(const char *event_string)
1055{
1056 DIR *sys_dir, *evt_dir;
1057 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1058 char evt_path[MAXPATHLEN];
1059 char dir_path[MAXPATHLEN];
1060
1061 if (debugfs_valid_mountpoint(tracing_events_path))
1062 return 0;
1063
1064 sys_dir = opendir(tracing_events_path);
1065 if (!sys_dir)
1066 return 0;
1067
1068 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1069
1070 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1071 sys_dirent.d_name);
1072 evt_dir = opendir(dir_path);
1073 if (!evt_dir)
1074 continue;
1075
1076 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1077 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1078 sys_dirent.d_name, evt_dirent.d_name);
1079 if (!strcmp(evt_path, event_string)) {
1080 closedir(evt_dir);
1081 closedir(sys_dir);
1082 return 1;
1083 }
1084 }
1085 closedir(evt_dir);
1086 }
1087 closedir(sys_dir);
1088 return 0;
1089}
1090
1091static bool is_event_supported(u8 type, unsigned config)
1092{
1093 bool ret = true;
1094 int open_return;
1095 struct perf_evsel *evsel;
1096 struct perf_event_attr attr = {
1097 .type = type,
1098 .config = config,
1099 .disabled = 1,
1100 };
1101 struct {
1102 struct thread_map map;
1103 int threads[1];
1104 } tmap = {
1105 .map.nr = 1,
1106 .threads = { 0 },
1107 };
1108
1109 evsel = perf_evsel__new(&attr);
1110 if (evsel) {
1111 open_return = perf_evsel__open(evsel, NULL, &tmap.map);
1112 ret = open_return >= 0;
1113
1114 if (open_return == -EACCES) {
1115 /*
1116 * This happens if the paranoid value
1117 * /proc/sys/kernel/perf_event_paranoid is set to 2
1118 * Re-run with exclude_kernel set; we don't do that
1119 * by default as some ARM machines do not support it.
1120 *
1121 */
1122 evsel->attr.exclude_kernel = 1;
1123 ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
1124 }
1125 perf_evsel__delete(evsel);
1126 }
1127
1128 return ret;
1129}
1130
1131static void __print_events_type(u8 type, struct event_symbol *syms,
1132 unsigned max)
1133{
1134 char name[64];
1135 unsigned i;
1136
1137 for (i = 0; i < max ; i++, syms++) {
1138 if (!is_event_supported(type, i))
1139 continue;
1140
1141 if (strlen(syms->alias))
1142 snprintf(name, sizeof(name), "%s OR %s",
1143 syms->symbol, syms->alias);
1144 else
1145 snprintf(name, sizeof(name), "%s", syms->symbol);
1146
1147 printf(" %-50s [%s]\n", name, event_type_descriptors[type]);
1148 }
1149}
1150
1151void print_events_type(u8 type)
1152{
1153 if (type == PERF_TYPE_SOFTWARE)
1154 __print_events_type(type, event_symbols_sw, PERF_COUNT_SW_MAX);
1155 else
1156 __print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX);
1157}
1158
1159int print_hwcache_events(const char *event_glob, bool name_only)
1160{
1161 unsigned int type, op, i, printed = 0;
1162 char name[64];
1163
1164 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1165 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1166 /* skip invalid cache type */
1167 if (!perf_evsel__is_cache_op_valid(type, op))
1168 continue;
1169
1170 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1171 __perf_evsel__hw_cache_type_op_res_name(type, op, i,
1172 name, sizeof(name));
1173 if (event_glob != NULL && !strglobmatch(name, event_glob))
1174 continue;
1175
1176 if (!is_event_supported(PERF_TYPE_HW_CACHE,
1177 type | (op << 8) | (i << 16)))
1178 continue;
1179
1180 if (name_only)
1181 printf("%s ", name);
1182 else
1183 printf(" %-50s [%s]\n", name,
1184 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1185 ++printed;
1186 }
1187 }
1188 }
1189
1190 if (printed)
1191 printf("\n");
1192 return printed;
1193}
1194
1195static void print_symbol_events(const char *event_glob, unsigned type,
1196 struct event_symbol *syms, unsigned max,
1197 bool name_only)
1198{
1199 unsigned i, printed = 0;
1200 char name[MAX_NAME_LEN];
1201
1202 for (i = 0; i < max; i++, syms++) {
1203
1204 if (event_glob != NULL &&
1205 !(strglobmatch(syms->symbol, event_glob) ||
1206 (syms->alias && strglobmatch(syms->alias, event_glob))))
1207 continue;
1208
1209 if (!is_event_supported(type, i))
1210 continue;
1211
1212 if (name_only) {
1213 printf("%s ", syms->symbol);
1214 continue;
1215 }
1216
1217 if (strlen(syms->alias))
1218 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1219 else
1220 strncpy(name, syms->symbol, MAX_NAME_LEN);
1221
1222 printf(" %-50s [%s]\n", name, event_type_descriptors[type]);
1223
1224 printed++;
1225 }
1226
1227 if (printed)
1228 printf("\n");
1229}
1230
1231/*
1232 * Print the help text for the event symbols:
1233 */
1234void print_events(const char *event_glob, bool name_only)
1235{
1236 if (!name_only) {
1237 printf("\n");
1238 printf("List of pre-defined events (to be used in -e):\n");
1239 }
1240
1241 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
1242 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
1243
1244 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
1245 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
1246
1247 print_hwcache_events(event_glob, name_only);
1248
1249 print_pmu_events(event_glob, name_only);
1250
1251 if (event_glob != NULL)
1252 return;
1253
1254 if (!name_only) {
1255 printf(" %-50s [%s]\n",
1256 "rNNN",
1257 event_type_descriptors[PERF_TYPE_RAW]);
1258 printf(" %-50s [%s]\n",
1259 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1260 event_type_descriptors[PERF_TYPE_RAW]);
1261 printf(" (see 'man perf-list' on how to encode it)\n");
1262 printf("\n");
1263
1264 printf(" %-50s [%s]\n",
1265 "mem:<addr>[:access]",
1266 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1267 printf("\n");
1268 }
1269
1270 print_tracepoint_events(NULL, NULL, name_only);
1271}
1272
1273int parse_events__is_hardcoded_term(struct parse_events_term *term)
1274{
1275 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
1276}
1277
1278static int new_term(struct parse_events_term **_term, int type_val,
1279 int type_term, char *config,
1280 char *str, u64 num)
1281{
1282 struct parse_events_term *term;
1283
1284 term = zalloc(sizeof(*term));
1285 if (!term)
1286 return -ENOMEM;
1287
1288 INIT_LIST_HEAD(&term->list);
1289 term->type_val = type_val;
1290 term->type_term = type_term;
1291 term->config = config;
1292
1293 switch (type_val) {
1294 case PARSE_EVENTS__TERM_TYPE_NUM:
1295 term->val.num = num;
1296 break;
1297 case PARSE_EVENTS__TERM_TYPE_STR:
1298 term->val.str = str;
1299 break;
1300 default:
1301 free(term);
1302 return -EINVAL;
1303 }
1304
1305 *_term = term;
1306 return 0;
1307}
1308
1309int parse_events_term__num(struct parse_events_term **term,
1310 int type_term, char *config, u64 num)
1311{
1312 return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
1313 config, NULL, num);
1314}
1315
1316int parse_events_term__str(struct parse_events_term **term,
1317 int type_term, char *config, char *str)
1318{
1319 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
1320 config, str, 0);
1321}
1322
1323int parse_events_term__sym_hw(struct parse_events_term **term,
1324 char *config, unsigned idx)
1325{
1326 struct event_symbol *sym;
1327
1328 BUG_ON(idx >= PERF_COUNT_HW_MAX);
1329 sym = &event_symbols_hw[idx];
1330
1331 if (config)
1332 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
1333 PARSE_EVENTS__TERM_TYPE_USER, config,
1334 (char *) sym->symbol, 0);
1335 else
1336 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
1337 PARSE_EVENTS__TERM_TYPE_USER,
1338 (char *) "event", (char *) sym->symbol, 0);
1339}
1340
1341int parse_events_term__clone(struct parse_events_term **new,
1342 struct parse_events_term *term)
1343{
1344 return new_term(new, term->type_val, term->type_term, term->config,
1345 term->val.str, term->val.num);
1346}
1347
1348void parse_events__free_terms(struct list_head *terms)
1349{
1350 struct parse_events_term *term, *h;
1351
1352 list_for_each_entry_safe(term, h, terms, list)
1353 free(term);
1354}