1 #include <linux/hw_breakpoint.h>
6 #include "parse-options.h"
7 #include "parse-events.h"
9 #include "linux/string.h"
13 #include <lk/debugfs.h>
14 #include "parse-events-bison.h"
15 #define YY_EXTRA_TYPE int
16 #include "parse-events-flex.h"
18 #include "thread_map.h"
20 #define MAX_NAME_LEN 100
28 extern int parse_events_debug;
30 int parse_events_parse(void *data, void *scanner);
32 static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
33 [PERF_COUNT_HW_CPU_CYCLES] = {
34 .symbol = "cpu-cycles",
37 [PERF_COUNT_HW_INSTRUCTIONS] = {
38 .symbol = "instructions",
41 [PERF_COUNT_HW_CACHE_REFERENCES] = {
42 .symbol = "cache-references",
45 [PERF_COUNT_HW_CACHE_MISSES] = {
46 .symbol = "cache-misses",
49 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
50 .symbol = "branch-instructions",
53 [PERF_COUNT_HW_BRANCH_MISSES] = {
54 .symbol = "branch-misses",
57 [PERF_COUNT_HW_BUS_CYCLES] = {
58 .symbol = "bus-cycles",
61 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
62 .symbol = "stalled-cycles-frontend",
63 .alias = "idle-cycles-frontend",
65 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
66 .symbol = "stalled-cycles-backend",
67 .alias = "idle-cycles-backend",
69 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
70 .symbol = "ref-cycles",
75 static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
76 [PERF_COUNT_SW_CPU_CLOCK] = {
77 .symbol = "cpu-clock",
80 [PERF_COUNT_SW_TASK_CLOCK] = {
81 .symbol = "task-clock",
84 [PERF_COUNT_SW_PAGE_FAULTS] = {
85 .symbol = "page-faults",
88 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
89 .symbol = "context-switches",
92 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
93 .symbol = "cpu-migrations",
94 .alias = "migrations",
96 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
97 .symbol = "minor-faults",
100 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
101 .symbol = "major-faults",
104 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
105 .symbol = "alignment-faults",
108 [PERF_COUNT_SW_EMULATION_FAULTS] = {
109 .symbol = "emulation-faults",
112 [PERF_COUNT_SW_DUMMY] = {
118 #define __PERF_EVENT_FIELD(config, name) \
119 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
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)
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, "..")))
132 static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
134 char evt_path[MAXPATHLEN];
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);
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)))
154 #define MAX_EVENT_LENGTH 512
157 struct tracepoint_path *tracepoint_id_to_path(u64 config)
159 struct tracepoint_path *path = NULL;
160 DIR *sys_dir, *evt_dir;
161 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
165 char evt_path[MAXPATHLEN];
166 char dir_path[MAXPATHLEN];
168 if (debugfs_valid_mountpoint(tracing_events_path))
171 sys_dir = opendir(tracing_events_path);
175 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
177 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
179 evt_dir = opendir(dir_path);
183 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
185 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
187 fd = open(evt_path, O_RDONLY);
190 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
199 path = zalloc(sizeof(*path));
200 path->system = malloc(MAX_EVENT_LENGTH);
205 path->name = malloc(MAX_EVENT_LENGTH);
211 strncpy(path->system, sys_dirent.d_name,
213 strncpy(path->name, evt_dirent.d_name,
225 struct tracepoint_path *tracepoint_name_to_path(const char *name)
227 struct tracepoint_path *path = zalloc(sizeof(*path));
228 char *str = strchr(name, ':');
230 if (path == NULL || str == NULL) {
235 path->system = strndup(name, str - name);
236 path->name = strdup(str+1);
238 if (path->system == NULL || path->name == NULL) {
248 const char *event_type(int type)
251 case PERF_TYPE_HARDWARE:
254 case PERF_TYPE_SOFTWARE:
257 case PERF_TYPE_TRACEPOINT:
260 case PERF_TYPE_HW_CACHE:
261 return "hardware-cache";
272 static int __add_event(struct list_head *list, int *idx,
273 struct perf_event_attr *attr,
274 char *name, struct cpu_map *cpus)
276 struct perf_evsel *evsel;
278 event_attr_init(attr);
280 evsel = perf_evsel__new(attr, (*idx)++);
286 evsel->name = strdup(name);
287 list_add_tail(&evsel->node, list);
291 static int add_event(struct list_head *list, int *idx,
292 struct perf_event_attr *attr, char *name)
294 return __add_event(list, idx, attr, name, NULL);
297 static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
302 for (i = 0; i < size; i++) {
303 for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
304 n = strlen(names[i][j]);
305 if (n > longest && !strncasecmp(str, names[i][j], n))
315 int parse_events_add_cache(struct list_head *list, int *idx,
316 char *type, char *op_result1, char *op_result2)
318 struct perf_event_attr attr;
319 char name[MAX_NAME_LEN];
320 int cache_type = -1, cache_op = -1, cache_result = -1;
321 char *op_result[2] = { op_result1, op_result2 };
325 * No fallback - if we cannot get a clear cache type
328 cache_type = parse_aliases(type, perf_evsel__hw_cache,
329 PERF_COUNT_HW_CACHE_MAX);
330 if (cache_type == -1)
333 n = snprintf(name, MAX_NAME_LEN, "%s", type);
335 for (i = 0; (i < 2) && (op_result[i]); i++) {
336 char *str = op_result[i];
338 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
340 if (cache_op == -1) {
341 cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
342 PERF_COUNT_HW_CACHE_OP_MAX);
344 if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
350 if (cache_result == -1) {
351 cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
352 PERF_COUNT_HW_CACHE_RESULT_MAX);
353 if (cache_result >= 0)
359 * Fall back to reads:
362 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
365 * Fall back to accesses:
367 if (cache_result == -1)
368 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
370 memset(&attr, 0, sizeof(attr));
371 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
372 attr.type = PERF_TYPE_HW_CACHE;
373 return add_event(list, idx, &attr, name);
376 static int add_tracepoint(struct list_head *list, int *idx,
377 char *sys_name, char *evt_name)
379 struct perf_evsel *evsel;
381 evsel = perf_evsel__newtp(sys_name, evt_name, (*idx)++);
385 list_add_tail(&evsel->node, list);
390 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
391 char *sys_name, char *evt_name)
393 char evt_path[MAXPATHLEN];
394 struct dirent *evt_ent;
398 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
399 evt_dir = opendir(evt_path);
401 perror("Can't open event dir");
405 while (!ret && (evt_ent = readdir(evt_dir))) {
406 if (!strcmp(evt_ent->d_name, ".")
407 || !strcmp(evt_ent->d_name, "..")
408 || !strcmp(evt_ent->d_name, "enable")
409 || !strcmp(evt_ent->d_name, "filter"))
412 if (!strglobmatch(evt_ent->d_name, evt_name))
415 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name);
422 static int add_tracepoint_event(struct list_head *list, int *idx,
423 char *sys_name, char *evt_name)
425 return strpbrk(evt_name, "*?") ?
426 add_tracepoint_multi_event(list, idx, sys_name, evt_name) :
427 add_tracepoint(list, idx, sys_name, evt_name);
430 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
431 char *sys_name, char *evt_name)
433 struct dirent *events_ent;
437 events_dir = opendir(tracing_events_path);
439 perror("Can't open event dir");
443 while (!ret && (events_ent = readdir(events_dir))) {
444 if (!strcmp(events_ent->d_name, ".")
445 || !strcmp(events_ent->d_name, "..")
446 || !strcmp(events_ent->d_name, "enable")
447 || !strcmp(events_ent->d_name, "header_event")
448 || !strcmp(events_ent->d_name, "header_page"))
451 if (!strglobmatch(events_ent->d_name, sys_name))
454 ret = add_tracepoint_event(list, idx, events_ent->d_name,
458 closedir(events_dir);
462 int parse_events_add_tracepoint(struct list_head *list, int *idx,
463 char *sys, char *event)
467 ret = debugfs_valid_mountpoint(tracing_events_path);
471 if (strpbrk(sys, "*?"))
472 return add_tracepoint_multi_sys(list, idx, sys, event);
474 return add_tracepoint_event(list, idx, sys, event);
478 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
482 for (i = 0; i < 3; i++) {
483 if (!type || !type[i])
486 #define CHECK_SET_TYPE(bit) \
488 if (attr->bp_type & bit) \
491 attr->bp_type |= bit; \
496 CHECK_SET_TYPE(HW_BREAKPOINT_R);
499 CHECK_SET_TYPE(HW_BREAKPOINT_W);
502 CHECK_SET_TYPE(HW_BREAKPOINT_X);
509 #undef CHECK_SET_TYPE
511 if (!attr->bp_type) /* Default */
512 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
517 int parse_events_add_breakpoint(struct list_head *list, int *idx,
518 void *ptr, char *type)
520 struct perf_event_attr attr;
522 memset(&attr, 0, sizeof(attr));
523 attr.bp_addr = (unsigned long) ptr;
525 if (parse_breakpoint_type(type, &attr))
529 * We should find a nice way to override the access length
530 * Provide some defaults for now
532 if (attr.bp_type == HW_BREAKPOINT_X)
533 attr.bp_len = sizeof(long);
535 attr.bp_len = HW_BREAKPOINT_LEN_4;
537 attr.type = PERF_TYPE_BREAKPOINT;
538 attr.sample_period = 1;
540 return add_event(list, idx, &attr, NULL);
543 static int config_term(struct perf_event_attr *attr,
544 struct parse_events_term *term)
546 #define CHECK_TYPE_VAL(type) \
548 if (PARSE_EVENTS__TERM_TYPE_ ## type != term->type_val) \
552 switch (term->type_term) {
553 case PARSE_EVENTS__TERM_TYPE_CONFIG:
555 attr->config = term->val.num;
557 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
559 attr->config1 = term->val.num;
561 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
563 attr->config2 = term->val.num;
565 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
567 attr->sample_period = term->val.num;
569 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
571 * TODO uncomment when the field is available
572 * attr->branch_sample_type = term->val.num;
575 case PARSE_EVENTS__TERM_TYPE_NAME:
583 #undef CHECK_TYPE_VAL
586 static int config_attr(struct perf_event_attr *attr,
587 struct list_head *head, int fail)
589 struct parse_events_term *term;
591 list_for_each_entry(term, head, list)
592 if (config_term(attr, term) && fail)
598 int parse_events_add_numeric(struct list_head *list, int *idx,
599 u32 type, u64 config,
600 struct list_head *head_config)
602 struct perf_event_attr attr;
604 memset(&attr, 0, sizeof(attr));
606 attr.config = config;
609 config_attr(&attr, head_config, 1))
612 return add_event(list, idx, &attr, NULL);
615 static int parse_events__is_name_term(struct parse_events_term *term)
617 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
620 static char *pmu_event_name(struct list_head *head_terms)
622 struct parse_events_term *term;
624 list_for_each_entry(term, head_terms, list)
625 if (parse_events__is_name_term(term))
626 return term->val.str;
631 int parse_events_add_pmu(struct list_head *list, int *idx,
632 char *name, struct list_head *head_config)
634 struct perf_event_attr attr;
635 struct perf_pmu *pmu;
637 pmu = perf_pmu__find(name);
641 memset(&attr, 0, sizeof(attr));
643 if (perf_pmu__check_alias(pmu, head_config))
647 * Configure hardcoded terms first, no need to check
648 * return value when called with fail == 0 ;)
650 config_attr(&attr, head_config, 0);
652 if (perf_pmu__config(pmu, &attr, head_config))
655 return __add_event(list, idx, &attr, pmu_event_name(head_config),
659 int parse_events__modifier_group(struct list_head *list,
662 return parse_events__modifier_event(list, event_mod, true);
665 void parse_events__set_leader(char *name, struct list_head *list)
667 struct perf_evsel *leader;
669 __perf_evlist__set_leader(list);
670 leader = list_entry(list->next, struct perf_evsel, node);
671 leader->group_name = name ? strdup(name) : NULL;
674 /* list_event is assumed to point to malloc'ed memory */
675 void parse_events_update_lists(struct list_head *list_event,
676 struct list_head *list_all)
679 * Called for single event definition. Update the
680 * 'all event' list, and reinit the 'single event'
681 * list, for next event definition.
683 list_splice_tail(list_event, list_all);
687 struct event_modifier {
699 static int get_event_modifier(struct event_modifier *mod, char *str,
700 struct perf_evsel *evsel)
702 int eu = evsel ? evsel->attr.exclude_user : 0;
703 int ek = evsel ? evsel->attr.exclude_kernel : 0;
704 int eh = evsel ? evsel->attr.exclude_hv : 0;
705 int eH = evsel ? evsel->attr.exclude_host : 0;
706 int eG = evsel ? evsel->attr.exclude_guest : 0;
707 int precise = evsel ? evsel->attr.precise_ip : 0;
709 int pinned = evsel ? evsel->attr.pinned : 0;
711 int exclude = eu | ek | eh;
712 int exclude_GH = evsel ? evsel->exclude_GH : 0;
714 memset(mod, 0, sizeof(*mod));
719 exclude = eu = ek = eh = 1;
721 } else if (*str == 'k') {
723 exclude = eu = ek = eh = 1;
725 } else if (*str == 'h') {
727 exclude = eu = ek = eh = 1;
729 } else if (*str == 'G') {
731 exclude_GH = eG = eH = 1;
733 } else if (*str == 'H') {
735 exclude_GH = eG = eH = 1;
737 } else if (*str == 'p') {
739 /* use of precise requires exclude_guest */
742 } else if (*str == 'S') {
744 } else if (*str == 'D') {
755 * 0 - SAMPLE_IP can have arbitrary skid
756 * 1 - SAMPLE_IP must have constant skid
757 * 2 - SAMPLE_IP requested to have 0 skid
758 * 3 - SAMPLE_IP must have 0 skid
760 * See also PERF_RECORD_MISC_EXACT_IP
770 mod->precise = precise;
771 mod->exclude_GH = exclude_GH;
772 mod->sample_read = sample_read;
773 mod->pinned = pinned;
779 * Basic modifier sanity check to validate it contains only one
780 * instance of any modifier (apart from 'p') present.
782 static int check_modifier(char *str)
786 /* The sizeof includes 0 byte as well. */
787 if (strlen(str) > (sizeof("ukhGHpppSD") - 1))
791 if (*p != 'p' && strchr(p + 1, *p))
799 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
801 struct perf_evsel *evsel;
802 struct event_modifier mod;
807 if (check_modifier(str))
810 if (!add && get_event_modifier(&mod, str, NULL))
813 list_for_each_entry(evsel, list, node) {
815 if (add && get_event_modifier(&mod, str, evsel))
818 evsel->attr.exclude_user = mod.eu;
819 evsel->attr.exclude_kernel = mod.ek;
820 evsel->attr.exclude_hv = mod.eh;
821 evsel->attr.precise_ip = mod.precise;
822 evsel->attr.exclude_host = mod.eH;
823 evsel->attr.exclude_guest = mod.eG;
824 evsel->exclude_GH = mod.exclude_GH;
825 evsel->sample_read = mod.sample_read;
827 if (perf_evsel__is_group_leader(evsel))
828 evsel->attr.pinned = mod.pinned;
834 int parse_events_name(struct list_head *list, char *name)
836 struct perf_evsel *evsel;
838 list_for_each_entry(evsel, list, node) {
840 evsel->name = strdup(name);
846 static int parse_events__scanner(const char *str, void *data, int start_token);
848 static int parse_events_fixup(int ret, const char *str, void *data,
851 char *o = strdup(str);
859 while ((p = strsep(&t, ",")) != NULL) {
861 str_append(&s, &len, ",");
862 str_append(&s, &len, "cpu/");
863 str_append(&s, &len, p);
864 str_append(&s, &len, "/");
869 return parse_events__scanner(s, data, start_token);
872 static int parse_events__scanner(const char *str, void *data, int start_token)
874 YY_BUFFER_STATE buffer;
878 ret = parse_events_lex_init_extra(start_token, &scanner);
882 buffer = parse_events__scan_string(str, scanner);
885 parse_events_debug = 1;
887 ret = parse_events_parse(data, scanner);
889 parse_events__flush_buffer(buffer, scanner);
890 parse_events__delete_buffer(buffer, scanner);
891 parse_events_lex_destroy(scanner);
892 if (ret && !strchr(str, '/'))
893 ret = parse_events_fixup(ret, str, data, start_token);
898 * parse event config string, return a list of event terms.
900 int parse_events_terms(struct list_head *terms, const char *str)
902 struct parse_events_terms data = {
907 ret = parse_events__scanner(str, &data, PE_START_TERMS);
909 list_splice(data.terms, terms);
915 parse_events__free_terms(data.terms);
919 int parse_events(struct perf_evlist *evlist, const char *str)
921 struct parse_events_evlist data = {
922 .list = LIST_HEAD_INIT(data.list),
923 .idx = evlist->nr_entries,
927 ret = parse_events__scanner(str, &data, PE_START_EVENTS);
929 int entries = data.idx - evlist->nr_entries;
930 perf_evlist__splice_list_tail(evlist, &data.list, entries);
931 evlist->nr_groups += data.nr_groups;
936 * There are 2 users - builtin-record and builtin-test objects.
937 * Both call perf_evlist__delete in case of error, so we dont
943 int parse_events_option(const struct option *opt, const char *str,
944 int unset __maybe_unused)
946 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
947 int ret = parse_events(evlist, str);
950 fprintf(stderr, "invalid or unsupported event: '%s'\n", str);
951 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
956 int parse_filter(const struct option *opt, const char *str,
957 int unset __maybe_unused)
959 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
960 struct perf_evsel *last = NULL;
962 if (evlist->nr_entries > 0)
963 last = perf_evlist__last(evlist);
965 if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
967 "-F option should follow a -e tracepoint option\n");
971 last->filter = strdup(str);
972 if (last->filter == NULL) {
973 fprintf(stderr, "not enough memory to hold filter string\n");
980 static const char * const event_type_descriptors[] = {
984 "Hardware cache event",
985 "Raw hardware event descriptor",
986 "Hardware breakpoint",
990 * Print the events from <debugfs_mount_point>/tracing/events
993 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
996 DIR *sys_dir, *evt_dir;
997 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
998 char evt_path[MAXPATHLEN];
999 char dir_path[MAXPATHLEN];
1001 if (debugfs_valid_mountpoint(tracing_events_path))
1004 sys_dir = opendir(tracing_events_path);
1008 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1009 if (subsys_glob != NULL &&
1010 !strglobmatch(sys_dirent.d_name, subsys_glob))
1013 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1015 evt_dir = opendir(dir_path);
1019 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1020 if (event_glob != NULL &&
1021 !strglobmatch(evt_dirent.d_name, event_glob))
1025 printf("%s:%s ", sys_dirent.d_name, evt_dirent.d_name);
1029 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1030 sys_dirent.d_name, evt_dirent.d_name);
1031 printf(" %-50s [%s]\n", evt_path,
1032 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1040 * Check whether event is in <debugfs_mount_point>/tracing/events
1043 int is_valid_tracepoint(const char *event_string)
1045 DIR *sys_dir, *evt_dir;
1046 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1047 char evt_path[MAXPATHLEN];
1048 char dir_path[MAXPATHLEN];
1050 if (debugfs_valid_mountpoint(tracing_events_path))
1053 sys_dir = opendir(tracing_events_path);
1057 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1059 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1061 evt_dir = opendir(dir_path);
1065 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1066 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1067 sys_dirent.d_name, evt_dirent.d_name);
1068 if (!strcmp(evt_path, event_string)) {
1080 static bool is_event_supported(u8 type, unsigned config)
1083 struct perf_evsel *evsel;
1084 struct perf_event_attr attr = {
1088 .exclude_kernel = 1,
1091 struct thread_map map;
1098 evsel = perf_evsel__new(&attr, 0);
1100 ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
1101 perf_evsel__delete(evsel);
1107 static void __print_events_type(u8 type, struct event_symbol *syms,
1113 for (i = 0; i < max ; i++, syms++) {
1114 if (!is_event_supported(type, i))
1117 if (strlen(syms->alias))
1118 snprintf(name, sizeof(name), "%s OR %s",
1119 syms->symbol, syms->alias);
1121 snprintf(name, sizeof(name), "%s", syms->symbol);
1123 printf(" %-50s [%s]\n", name, event_type_descriptors[type]);
1127 void print_events_type(u8 type)
1129 if (type == PERF_TYPE_SOFTWARE)
1130 __print_events_type(type, event_symbols_sw, PERF_COUNT_SW_MAX);
1132 __print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX);
1135 int print_hwcache_events(const char *event_glob, bool name_only)
1137 unsigned int type, op, i, printed = 0;
1140 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1141 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1142 /* skip invalid cache type */
1143 if (!perf_evsel__is_cache_op_valid(type, op))
1146 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1147 __perf_evsel__hw_cache_type_op_res_name(type, op, i,
1148 name, sizeof(name));
1149 if (event_glob != NULL && !strglobmatch(name, event_glob))
1152 if (!is_event_supported(PERF_TYPE_HW_CACHE,
1153 type | (op << 8) | (i << 16)))
1157 printf("%s ", name);
1159 printf(" %-50s [%s]\n", name,
1160 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1171 static void print_symbol_events(const char *event_glob, unsigned type,
1172 struct event_symbol *syms, unsigned max,
1175 unsigned i, printed = 0;
1176 char name[MAX_NAME_LEN];
1178 for (i = 0; i < max; i++, syms++) {
1180 if (event_glob != NULL &&
1181 !(strglobmatch(syms->symbol, event_glob) ||
1182 (syms->alias && strglobmatch(syms->alias, event_glob))))
1185 if (!is_event_supported(type, i))
1189 printf("%s ", syms->symbol);
1193 if (strlen(syms->alias))
1194 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1196 strncpy(name, syms->symbol, MAX_NAME_LEN);
1198 printf(" %-50s [%s]\n", name, event_type_descriptors[type]);
1208 * Print the help text for the event symbols:
1210 void print_events(const char *event_glob, bool name_only)
1214 printf("List of pre-defined events (to be used in -e):\n");
1217 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
1218 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
1220 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
1221 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
1223 print_hwcache_events(event_glob, name_only);
1225 print_pmu_events(event_glob, name_only);
1227 if (event_glob != NULL)
1231 printf(" %-50s [%s]\n",
1233 event_type_descriptors[PERF_TYPE_RAW]);
1234 printf(" %-50s [%s]\n",
1235 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1236 event_type_descriptors[PERF_TYPE_RAW]);
1237 printf(" (see 'man perf-list' on how to encode it)\n");
1240 printf(" %-50s [%s]\n",
1241 "mem:<addr>[:access]",
1242 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1246 print_tracepoint_events(NULL, NULL, name_only);
1249 int parse_events__is_hardcoded_term(struct parse_events_term *term)
1251 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
1254 static int new_term(struct parse_events_term **_term, int type_val,
1255 int type_term, char *config,
1258 struct parse_events_term *term;
1260 term = zalloc(sizeof(*term));
1264 INIT_LIST_HEAD(&term->list);
1265 term->type_val = type_val;
1266 term->type_term = type_term;
1267 term->config = config;
1270 case PARSE_EVENTS__TERM_TYPE_NUM:
1271 term->val.num = num;
1273 case PARSE_EVENTS__TERM_TYPE_STR:
1274 term->val.str = str;
1285 int parse_events_term__num(struct parse_events_term **term,
1286 int type_term, char *config, u64 num)
1288 return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
1292 int parse_events_term__str(struct parse_events_term **term,
1293 int type_term, char *config, char *str)
1295 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
1299 int parse_events_term__sym_hw(struct parse_events_term **term,
1300 char *config, unsigned idx)
1302 struct event_symbol *sym;
1304 BUG_ON(idx >= PERF_COUNT_HW_MAX);
1305 sym = &event_symbols_hw[idx];
1308 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
1309 PARSE_EVENTS__TERM_TYPE_USER, config,
1310 (char *) sym->symbol, 0);
1312 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
1313 PARSE_EVENTS__TERM_TYPE_USER,
1314 (char *) "event", (char *) sym->symbol, 0);
1317 int parse_events_term__clone(struct parse_events_term **new,
1318 struct parse_events_term *term)
1320 return new_term(new, term->type_val, term->type_term, term->config,
1321 term->val.str, term->val.num);
1324 void parse_events__free_terms(struct list_head *terms)
1326 struct parse_events_term *term, *h;
1328 list_for_each_entry_safe(term, h, terms, list)