1 #include <linux/hw_breakpoint.h>
7 #include "parse-options.h"
8 #include "parse-events.h"
14 #include "bpf-loader.h"
16 #include <api/fs/tracing_path.h>
17 #include "parse-events-bison.h"
18 #define YY_EXTRA_TYPE int
19 #include "parse-events-flex.h"
21 #include "thread_map.h"
25 #define MAX_NAME_LEN 100
28 extern int parse_events_debug;
30 int parse_events_parse(void *data, void *scanner);
31 static int get_config_terms(struct list_head *head_config,
32 struct list_head *head_terms __maybe_unused);
34 static struct perf_pmu_event_symbol *perf_pmu_events_list;
36 * The variable indicates the number of supported pmu event symbols.
37 * 0 means not initialized and ready to init
38 * -1 means failed to init, don't try anymore
39 * >0 is the number of supported pmu event symbols
41 static int perf_pmu_events_list_num;
43 struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
44 [PERF_COUNT_HW_CPU_CYCLES] = {
45 .symbol = "cpu-cycles",
48 [PERF_COUNT_HW_INSTRUCTIONS] = {
49 .symbol = "instructions",
52 [PERF_COUNT_HW_CACHE_REFERENCES] = {
53 .symbol = "cache-references",
56 [PERF_COUNT_HW_CACHE_MISSES] = {
57 .symbol = "cache-misses",
60 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
61 .symbol = "branch-instructions",
64 [PERF_COUNT_HW_BRANCH_MISSES] = {
65 .symbol = "branch-misses",
68 [PERF_COUNT_HW_BUS_CYCLES] = {
69 .symbol = "bus-cycles",
72 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
73 .symbol = "stalled-cycles-frontend",
74 .alias = "idle-cycles-frontend",
76 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
77 .symbol = "stalled-cycles-backend",
78 .alias = "idle-cycles-backend",
80 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
81 .symbol = "ref-cycles",
86 struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
87 [PERF_COUNT_SW_CPU_CLOCK] = {
88 .symbol = "cpu-clock",
91 [PERF_COUNT_SW_TASK_CLOCK] = {
92 .symbol = "task-clock",
95 [PERF_COUNT_SW_PAGE_FAULTS] = {
96 .symbol = "page-faults",
99 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
100 .symbol = "context-switches",
103 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
104 .symbol = "cpu-migrations",
105 .alias = "migrations",
107 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
108 .symbol = "minor-faults",
111 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
112 .symbol = "major-faults",
115 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
116 .symbol = "alignment-faults",
119 [PERF_COUNT_SW_EMULATION_FAULTS] = {
120 .symbol = "emulation-faults",
123 [PERF_COUNT_SW_DUMMY] = {
127 [PERF_COUNT_SW_BPF_OUTPUT] = {
128 .symbol = "bpf-output",
133 #define __PERF_EVENT_FIELD(config, name) \
134 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
136 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
137 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
138 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
139 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
141 #define for_each_subsystem(sys_dir, sys_dirent) \
142 while ((sys_dirent = readdir(sys_dir)) != NULL) \
143 if (sys_dirent->d_type == DT_DIR && \
144 (strcmp(sys_dirent->d_name, ".")) && \
145 (strcmp(sys_dirent->d_name, "..")))
147 static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
149 char evt_path[MAXPATHLEN];
152 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
153 sys_dir->d_name, evt_dir->d_name);
154 fd = open(evt_path, O_RDONLY);
162 #define for_each_event(sys_dirent, evt_dir, evt_dirent) \
163 while ((evt_dirent = readdir(evt_dir)) != NULL) \
164 if (evt_dirent->d_type == DT_DIR && \
165 (strcmp(evt_dirent->d_name, ".")) && \
166 (strcmp(evt_dirent->d_name, "..")) && \
167 (!tp_event_has_id(sys_dirent, evt_dirent)))
169 #define MAX_EVENT_LENGTH 512
172 struct tracepoint_path *tracepoint_id_to_path(u64 config)
174 struct tracepoint_path *path = NULL;
175 DIR *sys_dir, *evt_dir;
176 struct dirent *sys_dirent, *evt_dirent;
180 char evt_path[MAXPATHLEN];
181 char dir_path[MAXPATHLEN];
183 sys_dir = opendir(tracing_events_path);
187 for_each_subsystem(sys_dir, sys_dirent) {
189 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
191 evt_dir = opendir(dir_path);
195 for_each_event(sys_dirent, evt_dir, evt_dirent) {
197 scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
199 fd = open(evt_path, O_RDONLY);
202 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
211 path = zalloc(sizeof(*path));
212 path->system = malloc(MAX_EVENT_LENGTH);
217 path->name = malloc(MAX_EVENT_LENGTH);
219 zfree(&path->system);
223 strncpy(path->system, sys_dirent->d_name,
225 strncpy(path->name, evt_dirent->d_name,
237 struct tracepoint_path *tracepoint_name_to_path(const char *name)
239 struct tracepoint_path *path = zalloc(sizeof(*path));
240 char *str = strchr(name, ':');
242 if (path == NULL || str == NULL) {
247 path->system = strndup(name, str - name);
248 path->name = strdup(str+1);
250 if (path->system == NULL || path->name == NULL) {
251 zfree(&path->system);
260 const char *event_type(int type)
263 case PERF_TYPE_HARDWARE:
266 case PERF_TYPE_SOFTWARE:
269 case PERF_TYPE_TRACEPOINT:
272 case PERF_TYPE_HW_CACHE:
273 return "hardware-cache";
284 static struct perf_evsel *
285 __add_event(struct list_head *list, int *idx,
286 struct perf_event_attr *attr,
287 char *name, struct cpu_map *cpus,
288 struct list_head *config_terms)
290 struct perf_evsel *evsel;
292 event_attr_init(attr);
294 evsel = perf_evsel__new_idx(attr, *idx);
299 evsel->cpus = cpu_map__get(cpus);
300 evsel->own_cpus = cpu_map__get(cpus);
303 evsel->name = strdup(name);
306 list_splice(config_terms, &evsel->config_terms);
308 list_add_tail(&evsel->node, list);
312 static int add_event(struct list_head *list, int *idx,
313 struct perf_event_attr *attr, char *name,
314 struct list_head *config_terms)
316 return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM;
319 static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
324 for (i = 0; i < size; i++) {
325 for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
326 n = strlen(names[i][j]);
327 if (n > longest && !strncasecmp(str, names[i][j], n))
337 int parse_events_add_cache(struct list_head *list, int *idx,
338 char *type, char *op_result1, char *op_result2)
340 struct perf_event_attr attr;
341 char name[MAX_NAME_LEN];
342 int cache_type = -1, cache_op = -1, cache_result = -1;
343 char *op_result[2] = { op_result1, op_result2 };
347 * No fallback - if we cannot get a clear cache type
350 cache_type = parse_aliases(type, perf_evsel__hw_cache,
351 PERF_COUNT_HW_CACHE_MAX);
352 if (cache_type == -1)
355 n = snprintf(name, MAX_NAME_LEN, "%s", type);
357 for (i = 0; (i < 2) && (op_result[i]); i++) {
358 char *str = op_result[i];
360 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
362 if (cache_op == -1) {
363 cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
364 PERF_COUNT_HW_CACHE_OP_MAX);
366 if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
372 if (cache_result == -1) {
373 cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
374 PERF_COUNT_HW_CACHE_RESULT_MAX);
375 if (cache_result >= 0)
381 * Fall back to reads:
384 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
387 * Fall back to accesses:
389 if (cache_result == -1)
390 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
392 memset(&attr, 0, sizeof(attr));
393 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
394 attr.type = PERF_TYPE_HW_CACHE;
395 return add_event(list, idx, &attr, name, NULL);
398 static void tracepoint_error(struct parse_events_error *e, int err,
399 char *sys, char *name)
407 * We get error directly from syscall errno ( > 0),
408 * or from encoded pointer's error ( < 0).
414 e->str = strdup("can't access trace events");
417 e->str = strdup("unknown tracepoint");
420 e->str = strdup("failed to add tracepoint");
424 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
425 e->help = strdup(help);
428 static int add_tracepoint(struct list_head *list, int *idx,
429 char *sys_name, char *evt_name,
430 struct parse_events_error *err,
431 struct list_head *head_config)
433 struct perf_evsel *evsel;
435 evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++);
437 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
438 return PTR_ERR(evsel);
442 LIST_HEAD(config_terms);
444 if (get_config_terms(head_config, &config_terms))
446 list_splice(&config_terms, &evsel->config_terms);
449 list_add_tail(&evsel->node, list);
453 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
454 char *sys_name, char *evt_name,
455 struct parse_events_error *err,
456 struct list_head *head_config)
458 char evt_path[MAXPATHLEN];
459 struct dirent *evt_ent;
461 int ret = 0, found = 0;
463 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
464 evt_dir = opendir(evt_path);
466 tracepoint_error(err, errno, sys_name, evt_name);
470 while (!ret && (evt_ent = readdir(evt_dir))) {
471 if (!strcmp(evt_ent->d_name, ".")
472 || !strcmp(evt_ent->d_name, "..")
473 || !strcmp(evt_ent->d_name, "enable")
474 || !strcmp(evt_ent->d_name, "filter"))
477 if (!strglobmatch(evt_ent->d_name, evt_name))
482 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
487 tracepoint_error(err, ENOENT, sys_name, evt_name);
495 static int add_tracepoint_event(struct list_head *list, int *idx,
496 char *sys_name, char *evt_name,
497 struct parse_events_error *err,
498 struct list_head *head_config)
500 return strpbrk(evt_name, "*?") ?
501 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
503 add_tracepoint(list, idx, sys_name, evt_name,
507 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
508 char *sys_name, char *evt_name,
509 struct parse_events_error *err,
510 struct list_head *head_config)
512 struct dirent *events_ent;
516 events_dir = opendir(tracing_events_path);
518 tracepoint_error(err, errno, sys_name, evt_name);
522 while (!ret && (events_ent = readdir(events_dir))) {
523 if (!strcmp(events_ent->d_name, ".")
524 || !strcmp(events_ent->d_name, "..")
525 || !strcmp(events_ent->d_name, "enable")
526 || !strcmp(events_ent->d_name, "header_event")
527 || !strcmp(events_ent->d_name, "header_page"))
530 if (!strglobmatch(events_ent->d_name, sys_name))
533 ret = add_tracepoint_event(list, idx, events_ent->d_name,
534 evt_name, err, head_config);
537 closedir(events_dir);
541 struct __add_bpf_event_param {
542 struct parse_events_evlist *data;
543 struct list_head *list;
546 static int add_bpf_event(struct probe_trace_event *tev, int fd,
549 LIST_HEAD(new_evsels);
550 struct __add_bpf_event_param *param = _param;
551 struct parse_events_evlist *evlist = param->data;
552 struct list_head *list = param->list;
553 struct perf_evsel *pos;
556 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
557 tev->group, tev->event, fd);
559 err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, tev->group,
560 tev->event, evlist->error, NULL);
562 struct perf_evsel *evsel, *tmp;
564 pr_debug("Failed to add BPF event %s:%s\n",
565 tev->group, tev->event);
566 list_for_each_entry_safe(evsel, tmp, &new_evsels, node) {
567 list_del(&evsel->node);
568 perf_evsel__delete(evsel);
572 pr_debug("adding %s:%s\n", tev->group, tev->event);
574 list_for_each_entry(pos, &new_evsels, node) {
575 pr_debug("adding %s:%s to %p\n",
576 tev->group, tev->event, pos);
579 list_splice(&new_evsels, list);
583 int parse_events_load_bpf_obj(struct parse_events_evlist *data,
584 struct list_head *list,
585 struct bpf_object *obj)
589 struct __add_bpf_event_param param = {data, list};
590 static bool registered_unprobe_atexit = false;
592 if (IS_ERR(obj) || !obj) {
593 snprintf(errbuf, sizeof(errbuf),
594 "Internal error: load bpf obj with NULL");
600 * Register atexit handler before calling bpf__probe() so
601 * bpf__probe() don't need to unprobe probe points its already
602 * created when failure.
604 if (!registered_unprobe_atexit) {
606 registered_unprobe_atexit = true;
609 err = bpf__probe(obj);
611 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
615 err = bpf__load(obj);
617 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
621 err = bpf__foreach_tev(obj, add_bpf_event, ¶m);
623 snprintf(errbuf, sizeof(errbuf),
624 "Attach events in BPF object failed");
630 data->error->help = strdup("(add -v to see detail)");
631 data->error->str = strdup(errbuf);
635 int parse_events_load_bpf(struct parse_events_evlist *data,
636 struct list_head *list,
640 struct bpf_object *obj;
642 obj = bpf__prepare_load(bpf_file_name, source);
650 snprintf(errbuf, sizeof(errbuf),
651 "BPF support is not compiled");
653 bpf__strerror_prepare_load(bpf_file_name,
658 data->error->help = strdup("(add -v to see detail)");
659 data->error->str = strdup(errbuf);
663 return parse_events_load_bpf_obj(data, list, obj);
667 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
671 for (i = 0; i < 3; i++) {
672 if (!type || !type[i])
675 #define CHECK_SET_TYPE(bit) \
677 if (attr->bp_type & bit) \
680 attr->bp_type |= bit; \
685 CHECK_SET_TYPE(HW_BREAKPOINT_R);
688 CHECK_SET_TYPE(HW_BREAKPOINT_W);
691 CHECK_SET_TYPE(HW_BREAKPOINT_X);
698 #undef CHECK_SET_TYPE
700 if (!attr->bp_type) /* Default */
701 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
706 int parse_events_add_breakpoint(struct list_head *list, int *idx,
707 void *ptr, char *type, u64 len)
709 struct perf_event_attr attr;
711 memset(&attr, 0, sizeof(attr));
712 attr.bp_addr = (unsigned long) ptr;
714 if (parse_breakpoint_type(type, &attr))
717 /* Provide some defaults if len is not specified */
719 if (attr.bp_type == HW_BREAKPOINT_X)
722 len = HW_BREAKPOINT_LEN_4;
727 attr.type = PERF_TYPE_BREAKPOINT;
728 attr.sample_period = 1;
730 return add_event(list, idx, &attr, NULL, NULL);
733 static int check_type_val(struct parse_events_term *term,
734 struct parse_events_error *err,
737 if (type == term->type_val)
741 err->idx = term->err_val;
742 if (type == PARSE_EVENTS__TERM_TYPE_NUM)
743 err->str = strdup("expected numeric value");
745 err->str = strdup("expected string value");
750 typedef int config_term_func_t(struct perf_event_attr *attr,
751 struct parse_events_term *term,
752 struct parse_events_error *err);
754 static int config_term_common(struct perf_event_attr *attr,
755 struct parse_events_term *term,
756 struct parse_events_error *err)
758 #define CHECK_TYPE_VAL(type) \
760 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
764 switch (term->type_term) {
765 case PARSE_EVENTS__TERM_TYPE_CONFIG:
767 attr->config = term->val.num;
769 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
771 attr->config1 = term->val.num;
773 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
775 attr->config2 = term->val.num;
777 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
780 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
783 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
785 * TODO uncomment when the field is available
786 * attr->branch_sample_type = term->val.num;
789 case PARSE_EVENTS__TERM_TYPE_TIME:
791 if (term->val.num > 1) {
792 err->str = strdup("expected 0 or 1");
793 err->idx = term->err_val;
797 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
800 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
803 case PARSE_EVENTS__TERM_TYPE_INHERIT:
806 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
809 case PARSE_EVENTS__TERM_TYPE_NAME:
813 err->str = strdup("unknown term");
814 err->idx = term->err_term;
815 err->help = parse_events_formats_error_string(NULL);
820 #undef CHECK_TYPE_VAL
823 static int config_term_pmu(struct perf_event_attr *attr,
824 struct parse_events_term *term,
825 struct parse_events_error *err)
827 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER)
829 * Always succeed for sysfs terms, as we dont know
830 * at this point what type they need to have.
834 return config_term_common(attr, term, err);
837 static int config_term_tracepoint(struct perf_event_attr *attr,
838 struct parse_events_term *term,
839 struct parse_events_error *err)
841 switch (term->type_term) {
842 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
843 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
844 case PARSE_EVENTS__TERM_TYPE_INHERIT:
845 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
846 return config_term_common(attr, term, err);
849 err->idx = term->err_term;
850 err->str = strdup("unknown term");
851 err->help = strdup("valid terms: call-graph,stack-size\n");
859 static int config_attr(struct perf_event_attr *attr,
860 struct list_head *head,
861 struct parse_events_error *err,
862 config_term_func_t config_term)
864 struct parse_events_term *term;
866 list_for_each_entry(term, head, list)
867 if (config_term(attr, term, err))
873 static int get_config_terms(struct list_head *head_config,
874 struct list_head *head_terms __maybe_unused)
876 #define ADD_CONFIG_TERM(__type, __name, __val) \
878 struct perf_evsel_config_term *__t; \
880 __t = zalloc(sizeof(*__t)); \
884 INIT_LIST_HEAD(&__t->list); \
885 __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
886 __t->val.__name = __val; \
887 list_add_tail(&__t->list, head_terms); \
890 struct parse_events_term *term;
892 list_for_each_entry(term, head_config, list) {
893 switch (term->type_term) {
894 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
895 ADD_CONFIG_TERM(PERIOD, period, term->val.num);
897 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
898 ADD_CONFIG_TERM(FREQ, freq, term->val.num);
900 case PARSE_EVENTS__TERM_TYPE_TIME:
901 ADD_CONFIG_TERM(TIME, time, term->val.num);
903 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
904 ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str);
906 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
907 ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num);
909 case PARSE_EVENTS__TERM_TYPE_INHERIT:
910 ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0);
912 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
913 ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1);
919 #undef ADD_EVSEL_CONFIG
923 int parse_events_add_tracepoint(struct list_head *list, int *idx,
924 char *sys, char *event,
925 struct parse_events_error *err,
926 struct list_head *head_config)
929 struct perf_event_attr attr;
931 if (config_attr(&attr, head_config, err,
932 config_term_tracepoint))
936 if (strpbrk(sys, "*?"))
937 return add_tracepoint_multi_sys(list, idx, sys, event,
940 return add_tracepoint_event(list, idx, sys, event,
944 int parse_events_add_numeric(struct parse_events_evlist *data,
945 struct list_head *list,
946 u32 type, u64 config,
947 struct list_head *head_config)
949 struct perf_event_attr attr;
950 LIST_HEAD(config_terms);
952 memset(&attr, 0, sizeof(attr));
954 attr.config = config;
957 if (config_attr(&attr, head_config, data->error,
961 if (get_config_terms(head_config, &config_terms))
965 return add_event(list, &data->idx, &attr, NULL, &config_terms);
968 static int parse_events__is_name_term(struct parse_events_term *term)
970 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
973 static char *pmu_event_name(struct list_head *head_terms)
975 struct parse_events_term *term;
977 list_for_each_entry(term, head_terms, list)
978 if (parse_events__is_name_term(term))
979 return term->val.str;
984 int parse_events_add_pmu(struct parse_events_evlist *data,
985 struct list_head *list, char *name,
986 struct list_head *head_config)
988 struct perf_event_attr attr;
989 struct perf_pmu_info info;
990 struct perf_pmu *pmu;
991 struct perf_evsel *evsel;
992 LIST_HEAD(config_terms);
994 pmu = perf_pmu__find(name);
998 if (pmu->default_config) {
999 memcpy(&attr, pmu->default_config,
1000 sizeof(struct perf_event_attr));
1002 memset(&attr, 0, sizeof(attr));
1006 attr.type = pmu->type;
1007 evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL);
1008 return evsel ? 0 : -ENOMEM;
1011 if (perf_pmu__check_alias(pmu, head_config, &info))
1015 * Configure hardcoded terms first, no need to check
1016 * return value when called with fail == 0 ;)
1018 if (config_attr(&attr, head_config, data->error, config_term_pmu))
1021 if (get_config_terms(head_config, &config_terms))
1024 if (perf_pmu__config(pmu, &attr, head_config, data->error))
1027 evsel = __add_event(list, &data->idx, &attr,
1028 pmu_event_name(head_config), pmu->cpus,
1031 evsel->unit = info.unit;
1032 evsel->scale = info.scale;
1033 evsel->per_pkg = info.per_pkg;
1034 evsel->snapshot = info.snapshot;
1037 return evsel ? 0 : -ENOMEM;
1040 int parse_events__modifier_group(struct list_head *list,
1043 return parse_events__modifier_event(list, event_mod, true);
1046 void parse_events__set_leader(char *name, struct list_head *list)
1048 struct perf_evsel *leader;
1050 if (list_empty(list)) {
1051 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1055 __perf_evlist__set_leader(list);
1056 leader = list_entry(list->next, struct perf_evsel, node);
1057 leader->group_name = name ? strdup(name) : NULL;
1060 /* list_event is assumed to point to malloc'ed memory */
1061 void parse_events_update_lists(struct list_head *list_event,
1062 struct list_head *list_all)
1065 * Called for single event definition. Update the
1066 * 'all event' list, and reinit the 'single event'
1067 * list, for next event definition.
1069 list_splice_tail(list_event, list_all);
1073 struct event_modifier {
1087 static int get_event_modifier(struct event_modifier *mod, char *str,
1088 struct perf_evsel *evsel)
1090 int eu = evsel ? evsel->attr.exclude_user : 0;
1091 int ek = evsel ? evsel->attr.exclude_kernel : 0;
1092 int eh = evsel ? evsel->attr.exclude_hv : 0;
1093 int eH = evsel ? evsel->attr.exclude_host : 0;
1094 int eG = evsel ? evsel->attr.exclude_guest : 0;
1095 int eI = evsel ? evsel->attr.exclude_idle : 0;
1096 int precise = evsel ? evsel->attr.precise_ip : 0;
1097 int precise_max = 0;
1098 int sample_read = 0;
1099 int pinned = evsel ? evsel->attr.pinned : 0;
1101 int exclude = eu | ek | eh;
1102 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1104 memset(mod, 0, sizeof(*mod));
1109 exclude = eu = ek = eh = 1;
1111 } else if (*str == 'k') {
1113 exclude = eu = ek = eh = 1;
1115 } else if (*str == 'h') {
1117 exclude = eu = ek = eh = 1;
1119 } else if (*str == 'G') {
1121 exclude_GH = eG = eH = 1;
1123 } else if (*str == 'H') {
1125 exclude_GH = eG = eH = 1;
1127 } else if (*str == 'I') {
1129 } else if (*str == 'p') {
1131 /* use of precise requires exclude_guest */
1134 } else if (*str == 'P') {
1136 } else if (*str == 'S') {
1138 } else if (*str == 'D') {
1149 * 0 - SAMPLE_IP can have arbitrary skid
1150 * 1 - SAMPLE_IP must have constant skid
1151 * 2 - SAMPLE_IP requested to have 0 skid
1152 * 3 - SAMPLE_IP must have 0 skid
1154 * See also PERF_RECORD_MISC_EXACT_IP
1165 mod->precise = precise;
1166 mod->precise_max = precise_max;
1167 mod->exclude_GH = exclude_GH;
1168 mod->sample_read = sample_read;
1169 mod->pinned = pinned;
1175 * Basic modifier sanity check to validate it contains only one
1176 * instance of any modifier (apart from 'p') present.
1178 static int check_modifier(char *str)
1182 /* The sizeof includes 0 byte as well. */
1183 if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1))
1187 if (*p != 'p' && strchr(p + 1, *p))
1195 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
1197 struct perf_evsel *evsel;
1198 struct event_modifier mod;
1203 if (check_modifier(str))
1206 if (!add && get_event_modifier(&mod, str, NULL))
1209 __evlist__for_each(list, evsel) {
1210 if (add && get_event_modifier(&mod, str, evsel))
1213 evsel->attr.exclude_user = mod.eu;
1214 evsel->attr.exclude_kernel = mod.ek;
1215 evsel->attr.exclude_hv = mod.eh;
1216 evsel->attr.precise_ip = mod.precise;
1217 evsel->attr.exclude_host = mod.eH;
1218 evsel->attr.exclude_guest = mod.eG;
1219 evsel->attr.exclude_idle = mod.eI;
1220 evsel->exclude_GH = mod.exclude_GH;
1221 evsel->sample_read = mod.sample_read;
1222 evsel->precise_max = mod.precise_max;
1224 if (perf_evsel__is_group_leader(evsel))
1225 evsel->attr.pinned = mod.pinned;
1231 int parse_events_name(struct list_head *list, char *name)
1233 struct perf_evsel *evsel;
1235 __evlist__for_each(list, evsel) {
1237 evsel->name = strdup(name);
1244 comp_pmu(const void *p1, const void *p2)
1246 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
1247 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
1249 return strcmp(pmu1->symbol, pmu2->symbol);
1252 static void perf_pmu__parse_cleanup(void)
1254 if (perf_pmu_events_list_num > 0) {
1255 struct perf_pmu_event_symbol *p;
1258 for (i = 0; i < perf_pmu_events_list_num; i++) {
1259 p = perf_pmu_events_list + i;
1262 free(perf_pmu_events_list);
1263 perf_pmu_events_list = NULL;
1264 perf_pmu_events_list_num = 0;
1268 #define SET_SYMBOL(str, stype) \
1277 * Read the pmu events list from sysfs
1278 * Save it into perf_pmu_events_list
1280 static void perf_pmu__parse_init(void)
1283 struct perf_pmu *pmu = NULL;
1284 struct perf_pmu_alias *alias;
1287 pmu = perf_pmu__find("cpu");
1288 if ((pmu == NULL) || list_empty(&pmu->aliases)) {
1289 perf_pmu_events_list_num = -1;
1292 list_for_each_entry(alias, &pmu->aliases, list) {
1293 if (strchr(alias->name, '-'))
1297 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
1298 if (!perf_pmu_events_list)
1300 perf_pmu_events_list_num = len;
1303 list_for_each_entry(alias, &pmu->aliases, list) {
1304 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
1305 char *tmp = strchr(alias->name, '-');
1308 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
1309 PMU_EVENT_SYMBOL_PREFIX);
1311 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
1314 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
1318 qsort(perf_pmu_events_list, len,
1319 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1323 perf_pmu__parse_cleanup();
1326 enum perf_pmu_event_symbol_type
1327 perf_pmu__parse_check(const char *name)
1329 struct perf_pmu_event_symbol p, *r;
1331 /* scan kernel pmu events from sysfs if needed */
1332 if (perf_pmu_events_list_num == 0)
1333 perf_pmu__parse_init();
1335 * name "cpu" could be prefix of cpu-cycles or cpu// events.
1336 * cpu-cycles has been handled by hardcode.
1337 * So it must be cpu// events, not kernel pmu event.
1339 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
1340 return PMU_EVENT_SYMBOL_ERR;
1342 p.symbol = strdup(name);
1343 r = bsearch(&p, perf_pmu_events_list,
1344 (size_t) perf_pmu_events_list_num,
1345 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1347 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
1350 static int parse_events__scanner(const char *str, void *data, int start_token)
1352 YY_BUFFER_STATE buffer;
1356 ret = parse_events_lex_init_extra(start_token, &scanner);
1360 buffer = parse_events__scan_string(str, scanner);
1363 parse_events_debug = 1;
1365 ret = parse_events_parse(data, scanner);
1367 parse_events__flush_buffer(buffer, scanner);
1368 parse_events__delete_buffer(buffer, scanner);
1369 parse_events_lex_destroy(scanner);
1374 * parse event config string, return a list of event terms.
1376 int parse_events_terms(struct list_head *terms, const char *str)
1378 struct parse_events_terms data = {
1383 ret = parse_events__scanner(str, &data, PE_START_TERMS);
1385 list_splice(data.terms, terms);
1391 parse_events__free_terms(data.terms);
1395 int parse_events(struct perf_evlist *evlist, const char *str,
1396 struct parse_events_error *err)
1398 struct parse_events_evlist data = {
1399 .list = LIST_HEAD_INIT(data.list),
1400 .idx = evlist->nr_entries,
1405 ret = parse_events__scanner(str, &data, PE_START_EVENTS);
1406 perf_pmu__parse_cleanup();
1408 struct perf_evsel *last;
1410 if (list_empty(&data.list)) {
1411 WARN_ONCE(true, "WARNING: event parser found nothing");
1415 perf_evlist__splice_list_tail(evlist, &data.list);
1416 evlist->nr_groups += data.nr_groups;
1417 last = perf_evlist__last(evlist);
1418 last->cmdline_group_boundary = true;
1424 * There are 2 users - builtin-record and builtin-test objects.
1425 * Both call perf_evlist__delete in case of error, so we dont
1431 #define MAX_WIDTH 1000
1432 static int get_term_width(void)
1436 get_term_dimensions(&ws);
1437 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
1440 static void parse_events_print_error(struct parse_events_error *err,
1443 const char *str = "invalid or unsupported event: ";
1444 char _buf[MAX_WIDTH];
1445 char *buf = (char *) event;
1449 /* -2 for extra '' in the final fprintf */
1450 int width = get_term_width() - 2;
1451 int len_event = strlen(event);
1452 int len_str, max_len, cut = 0;
1455 * Maximum error index indent, we will cut
1456 * the event string if it's bigger.
1458 int max_err_idx = 13;
1461 * Let's be specific with the message when
1462 * we have the precise error.
1464 str = "event syntax error: ";
1465 len_str = strlen(str);
1466 max_len = width - len_str;
1470 /* We're cutting from the beggining. */
1471 if (err->idx > max_err_idx)
1472 cut = err->idx - max_err_idx;
1474 strncpy(buf, event + cut, max_len);
1476 /* Mark cut parts with '..' on both sides. */
1478 buf[0] = buf[1] = '.';
1480 if ((len_event - cut) > max_len) {
1481 buf[max_len - 1] = buf[max_len - 2] = '.';
1485 idx = len_str + err->idx - cut;
1488 fprintf(stderr, "%s'%s'\n", str, buf);
1490 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str);
1492 fprintf(stderr, "\n%s\n", err->help);
1497 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
1502 int parse_events_option(const struct option *opt, const char *str,
1503 int unset __maybe_unused)
1505 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1506 struct parse_events_error err = { .idx = 0, };
1507 int ret = parse_events(evlist, str, &err);
1510 parse_events_print_error(&err, str);
1516 foreach_evsel_in_last_glob(struct perf_evlist *evlist,
1517 int (*func)(struct perf_evsel *evsel,
1521 struct perf_evsel *last = NULL;
1525 * Don't return when list_empty, give func a chance to report
1526 * error when it found last == NULL.
1528 * So no need to WARN here, let *func do this.
1530 if (evlist->nr_entries > 0)
1531 last = perf_evlist__last(evlist);
1534 err = (*func)(last, arg);
1540 if (last->node.prev == &evlist->entries)
1542 last = list_entry(last->node.prev, struct perf_evsel, node);
1543 } while (!last->cmdline_group_boundary);
1548 static int set_filter(struct perf_evsel *evsel, const void *arg)
1550 const char *str = arg;
1552 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1554 "--filter option should follow a -e tracepoint option\n");
1558 if (perf_evsel__append_filter(evsel, "&&", str) < 0) {
1560 "not enough memory to hold filter string\n");
1567 int parse_filter(const struct option *opt, const char *str,
1568 int unset __maybe_unused)
1570 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1572 return foreach_evsel_in_last_glob(evlist, set_filter,
1576 static int add_exclude_perf_filter(struct perf_evsel *evsel,
1577 const void *arg __maybe_unused)
1579 char new_filter[64];
1581 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1583 "--exclude-perf option should follow a -e tracepoint option\n");
1587 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
1589 if (perf_evsel__append_filter(evsel, "&&", new_filter) < 0) {
1591 "not enough memory to hold filter string\n");
1598 int exclude_perf(const struct option *opt,
1599 const char *arg __maybe_unused,
1600 int unset __maybe_unused)
1602 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1604 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
1608 static const char * const event_type_descriptors[] = {
1612 "Hardware cache event",
1613 "Raw hardware event descriptor",
1614 "Hardware breakpoint",
1617 static int cmp_string(const void *a, const void *b)
1619 const char * const *as = a;
1620 const char * const *bs = b;
1622 return strcmp(*as, *bs);
1626 * Print the events from <debugfs_mount_point>/tracing/events
1629 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
1632 DIR *sys_dir, *evt_dir;
1633 struct dirent *sys_dirent, *evt_dirent;
1634 char evt_path[MAXPATHLEN];
1635 char dir_path[MAXPATHLEN];
1636 char **evt_list = NULL;
1637 unsigned int evt_i = 0, evt_num = 0;
1638 bool evt_num_known = false;
1641 sys_dir = opendir(tracing_events_path);
1645 if (evt_num_known) {
1646 evt_list = zalloc(sizeof(char *) * evt_num);
1648 goto out_close_sys_dir;
1651 for_each_subsystem(sys_dir, sys_dirent) {
1652 if (subsys_glob != NULL &&
1653 !strglobmatch(sys_dirent->d_name, subsys_glob))
1656 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1657 sys_dirent->d_name);
1658 evt_dir = opendir(dir_path);
1662 for_each_event(sys_dirent, evt_dir, evt_dirent) {
1663 if (event_glob != NULL &&
1664 !strglobmatch(evt_dirent->d_name, event_glob))
1667 if (!evt_num_known) {
1672 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1673 sys_dirent->d_name, evt_dirent->d_name);
1675 evt_list[evt_i] = strdup(evt_path);
1676 if (evt_list[evt_i] == NULL)
1677 goto out_close_evt_dir;
1684 if (!evt_num_known) {
1685 evt_num_known = true;
1688 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1690 while (evt_i < evt_num) {
1692 printf("%s ", evt_list[evt_i++]);
1695 printf(" %-50s [%s]\n", evt_list[evt_i++],
1696 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1698 if (evt_num && pager_in_use())
1703 for (evt_i = 0; evt_i < evt_num; evt_i++)
1704 zfree(&evt_list[evt_i]);
1713 printf("FATAL: not enough memory to print %s\n",
1714 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1720 * Check whether event is in <debugfs_mount_point>/tracing/events
1723 int is_valid_tracepoint(const char *event_string)
1725 DIR *sys_dir, *evt_dir;
1726 struct dirent *sys_dirent, *evt_dirent;
1727 char evt_path[MAXPATHLEN];
1728 char dir_path[MAXPATHLEN];
1730 sys_dir = opendir(tracing_events_path);
1734 for_each_subsystem(sys_dir, sys_dirent) {
1736 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1737 sys_dirent->d_name);
1738 evt_dir = opendir(dir_path);
1742 for_each_event(sys_dirent, evt_dir, evt_dirent) {
1743 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1744 sys_dirent->d_name, evt_dirent->d_name);
1745 if (!strcmp(evt_path, event_string)) {
1757 static bool is_event_supported(u8 type, unsigned config)
1761 struct perf_evsel *evsel;
1762 struct perf_event_attr attr = {
1768 struct thread_map map;
1775 evsel = perf_evsel__new(&attr);
1777 open_return = perf_evsel__open(evsel, NULL, &tmap.map);
1778 ret = open_return >= 0;
1780 if (open_return == -EACCES) {
1782 * This happens if the paranoid value
1783 * /proc/sys/kernel/perf_event_paranoid is set to 2
1784 * Re-run with exclude_kernel set; we don't do that
1785 * by default as some ARM machines do not support it.
1788 evsel->attr.exclude_kernel = 1;
1789 ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
1791 perf_evsel__delete(evsel);
1797 int print_hwcache_events(const char *event_glob, bool name_only)
1799 unsigned int type, op, i, evt_i = 0, evt_num = 0;
1801 char **evt_list = NULL;
1802 bool evt_num_known = false;
1805 if (evt_num_known) {
1806 evt_list = zalloc(sizeof(char *) * evt_num);
1811 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1812 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1813 /* skip invalid cache type */
1814 if (!perf_evsel__is_cache_op_valid(type, op))
1817 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1818 __perf_evsel__hw_cache_type_op_res_name(type, op, i,
1819 name, sizeof(name));
1820 if (event_glob != NULL && !strglobmatch(name, event_glob))
1823 if (!is_event_supported(PERF_TYPE_HW_CACHE,
1824 type | (op << 8) | (i << 16)))
1827 if (!evt_num_known) {
1832 evt_list[evt_i] = strdup(name);
1833 if (evt_list[evt_i] == NULL)
1840 if (!evt_num_known) {
1841 evt_num_known = true;
1844 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1846 while (evt_i < evt_num) {
1848 printf("%s ", evt_list[evt_i++]);
1851 printf(" %-50s [%s]\n", evt_list[evt_i++],
1852 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1854 if (evt_num && pager_in_use())
1859 for (evt_i = 0; evt_i < evt_num; evt_i++)
1860 zfree(&evt_list[evt_i]);
1865 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
1871 void print_symbol_events(const char *event_glob, unsigned type,
1872 struct event_symbol *syms, unsigned max,
1875 unsigned int i, evt_i = 0, evt_num = 0;
1876 char name[MAX_NAME_LEN];
1877 char **evt_list = NULL;
1878 bool evt_num_known = false;
1881 if (evt_num_known) {
1882 evt_list = zalloc(sizeof(char *) * evt_num);
1888 for (i = 0; i < max; i++, syms++) {
1890 if (event_glob != NULL && syms->symbol != NULL &&
1891 !(strglobmatch(syms->symbol, event_glob) ||
1892 (syms->alias && strglobmatch(syms->alias, event_glob))))
1895 if (!is_event_supported(type, i))
1898 if (!evt_num_known) {
1903 if (!name_only && strlen(syms->alias))
1904 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1906 strlcpy(name, syms->symbol, MAX_NAME_LEN);
1908 evt_list[evt_i] = strdup(name);
1909 if (evt_list[evt_i] == NULL)
1914 if (!evt_num_known) {
1915 evt_num_known = true;
1918 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1920 while (evt_i < evt_num) {
1922 printf("%s ", evt_list[evt_i++]);
1925 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
1927 if (evt_num && pager_in_use())
1932 for (evt_i = 0; evt_i < evt_num; evt_i++)
1933 zfree(&evt_list[evt_i]);
1938 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
1944 * Print the help text for the event symbols:
1946 void print_events(const char *event_glob, bool name_only)
1948 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
1949 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
1951 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
1952 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
1954 print_hwcache_events(event_glob, name_only);
1956 print_pmu_events(event_glob, name_only);
1958 if (event_glob != NULL)
1962 printf(" %-50s [%s]\n",
1964 event_type_descriptors[PERF_TYPE_RAW]);
1965 printf(" %-50s [%s]\n",
1966 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1967 event_type_descriptors[PERF_TYPE_RAW]);
1969 printf(" (see 'man perf-list' on how to encode it)\n\n");
1971 printf(" %-50s [%s]\n",
1972 "mem:<addr>[/len][:access]",
1973 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1978 print_tracepoint_events(NULL, NULL, name_only);
1981 int parse_events__is_hardcoded_term(struct parse_events_term *term)
1983 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
1986 static int new_term(struct parse_events_term **_term, int type_val,
1987 int type_term, char *config,
1988 char *str, u64 num, int err_term, int err_val)
1990 struct parse_events_term *term;
1992 term = zalloc(sizeof(*term));
1996 INIT_LIST_HEAD(&term->list);
1997 term->type_val = type_val;
1998 term->type_term = type_term;
1999 term->config = config;
2000 term->err_term = err_term;
2001 term->err_val = err_val;
2004 case PARSE_EVENTS__TERM_TYPE_NUM:
2005 term->val.num = num;
2007 case PARSE_EVENTS__TERM_TYPE_STR:
2008 term->val.str = str;
2019 int parse_events_term__num(struct parse_events_term **term,
2020 int type_term, char *config, u64 num,
2021 void *loc_term_, void *loc_val_)
2023 YYLTYPE *loc_term = loc_term_;
2024 YYLTYPE *loc_val = loc_val_;
2026 return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
2028 loc_term ? loc_term->first_column : 0,
2029 loc_val ? loc_val->first_column : 0);
2032 int parse_events_term__str(struct parse_events_term **term,
2033 int type_term, char *config, char *str,
2034 void *loc_term_, void *loc_val_)
2036 YYLTYPE *loc_term = loc_term_;
2037 YYLTYPE *loc_val = loc_val_;
2039 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
2041 loc_term ? loc_term->first_column : 0,
2042 loc_val ? loc_val->first_column : 0);
2045 int parse_events_term__sym_hw(struct parse_events_term **term,
2046 char *config, unsigned idx)
2048 struct event_symbol *sym;
2050 BUG_ON(idx >= PERF_COUNT_HW_MAX);
2051 sym = &event_symbols_hw[idx];
2054 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2055 PARSE_EVENTS__TERM_TYPE_USER, config,
2056 (char *) sym->symbol, 0, 0, 0);
2058 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2059 PARSE_EVENTS__TERM_TYPE_USER,
2060 (char *) "event", (char *) sym->symbol,
2064 int parse_events_term__clone(struct parse_events_term **new,
2065 struct parse_events_term *term)
2067 return new_term(new, term->type_val, term->type_term, term->config,
2068 term->val.str, term->val.num,
2069 term->err_term, term->err_val);
2072 void parse_events__free_terms(struct list_head *terms)
2074 struct parse_events_term *term, *h;
2076 list_for_each_entry_safe(term, h, terms, list)
2080 void parse_events_evlist_error(struct parse_events_evlist *data,
2081 int idx, const char *str)
2083 struct parse_events_error *err = data->error;
2088 err->str = strdup(str);
2089 WARN_ONCE(!err->str, "WARNING: failed to allocate error string");
2093 * Return string contains valid config terms of an event.
2094 * @additional_terms: For terms such as PMU sysfs terms.
2096 char *parse_events_formats_error_string(char *additional_terms)
2099 static const char *static_terms = "config,config1,config2,name,"
2100 "period,freq,branch_type,time,"
2101 "call-graph,stack-size\n";
2104 if (additional_terms) {
2105 if (asprintf(&str, "valid terms: %s,%s",
2106 additional_terms, static_terms) < 0)
2109 if (asprintf(&str, "valid terms: %s", static_terms) < 0)