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] = {
129 #define __PERF_EVENT_FIELD(config, name) \
130 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
132 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
133 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
134 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
135 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
137 #define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
138 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
139 if (sys_dirent.d_type == DT_DIR && \
140 (strcmp(sys_dirent.d_name, ".")) && \
141 (strcmp(sys_dirent.d_name, "..")))
143 static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
145 char evt_path[MAXPATHLEN];
148 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
149 sys_dir->d_name, evt_dir->d_name);
150 fd = open(evt_path, O_RDONLY);
158 #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
159 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
160 if (evt_dirent.d_type == DT_DIR && \
161 (strcmp(evt_dirent.d_name, ".")) && \
162 (strcmp(evt_dirent.d_name, "..")) && \
163 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
165 #define MAX_EVENT_LENGTH 512
168 struct tracepoint_path *tracepoint_id_to_path(u64 config)
170 struct tracepoint_path *path = NULL;
171 DIR *sys_dir, *evt_dir;
172 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
176 char evt_path[MAXPATHLEN];
177 char dir_path[MAXPATHLEN];
179 sys_dir = opendir(tracing_events_path);
183 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
185 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
187 evt_dir = opendir(dir_path);
191 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
193 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
195 fd = open(evt_path, O_RDONLY);
198 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
207 path = zalloc(sizeof(*path));
208 path->system = malloc(MAX_EVENT_LENGTH);
213 path->name = malloc(MAX_EVENT_LENGTH);
215 zfree(&path->system);
219 strncpy(path->system, sys_dirent.d_name,
221 strncpy(path->name, evt_dirent.d_name,
233 struct tracepoint_path *tracepoint_name_to_path(const char *name)
235 struct tracepoint_path *path = zalloc(sizeof(*path));
236 char *str = strchr(name, ':');
238 if (path == NULL || str == NULL) {
243 path->system = strndup(name, str - name);
244 path->name = strdup(str+1);
246 if (path->system == NULL || path->name == NULL) {
247 zfree(&path->system);
256 const char *event_type(int type)
259 case PERF_TYPE_HARDWARE:
262 case PERF_TYPE_SOFTWARE:
265 case PERF_TYPE_TRACEPOINT:
268 case PERF_TYPE_HW_CACHE:
269 return "hardware-cache";
280 static struct perf_evsel *
281 __add_event(struct list_head *list, int *idx,
282 struct perf_event_attr *attr,
283 char *name, struct cpu_map *cpus,
284 struct list_head *config_terms)
286 struct perf_evsel *evsel;
288 event_attr_init(attr);
290 evsel = perf_evsel__new_idx(attr, (*idx)++);
294 evsel->cpus = cpu_map__get(cpus);
295 evsel->own_cpus = cpu_map__get(cpus);
298 evsel->name = strdup(name);
301 list_splice(config_terms, &evsel->config_terms);
303 list_add_tail(&evsel->node, list);
307 static int add_event(struct list_head *list, int *idx,
308 struct perf_event_attr *attr, char *name,
309 struct list_head *config_terms)
311 return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM;
314 static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
319 for (i = 0; i < size; i++) {
320 for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
321 n = strlen(names[i][j]);
322 if (n > longest && !strncasecmp(str, names[i][j], n))
332 int parse_events_add_cache(struct list_head *list, int *idx,
333 char *type, char *op_result1, char *op_result2)
335 struct perf_event_attr attr;
336 char name[MAX_NAME_LEN];
337 int cache_type = -1, cache_op = -1, cache_result = -1;
338 char *op_result[2] = { op_result1, op_result2 };
342 * No fallback - if we cannot get a clear cache type
345 cache_type = parse_aliases(type, perf_evsel__hw_cache,
346 PERF_COUNT_HW_CACHE_MAX);
347 if (cache_type == -1)
350 n = snprintf(name, MAX_NAME_LEN, "%s", type);
352 for (i = 0; (i < 2) && (op_result[i]); i++) {
353 char *str = op_result[i];
355 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
357 if (cache_op == -1) {
358 cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
359 PERF_COUNT_HW_CACHE_OP_MAX);
361 if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
367 if (cache_result == -1) {
368 cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
369 PERF_COUNT_HW_CACHE_RESULT_MAX);
370 if (cache_result >= 0)
376 * Fall back to reads:
379 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
382 * Fall back to accesses:
384 if (cache_result == -1)
385 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
387 memset(&attr, 0, sizeof(attr));
388 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
389 attr.type = PERF_TYPE_HW_CACHE;
390 return add_event(list, idx, &attr, name, NULL);
393 static void tracepoint_error(struct parse_events_error *e, int err,
394 char *sys, char *name)
399 * We get error directly from syscall errno ( > 0),
400 * or from encoded pointer's error ( < 0).
406 e->str = strdup("can't access trace events");
409 e->str = strdup("unknown tracepoint");
412 e->str = strdup("failed to add tracepoint");
416 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
417 e->help = strdup(help);
420 static int add_tracepoint(struct list_head *list, int *idx,
421 char *sys_name, char *evt_name,
422 struct parse_events_error *err,
423 struct list_head *head_config)
425 struct perf_evsel *evsel;
427 evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++);
429 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
430 return PTR_ERR(evsel);
434 LIST_HEAD(config_terms);
436 if (get_config_terms(head_config, &config_terms))
438 list_splice(&config_terms, &evsel->config_terms);
441 list_add_tail(&evsel->node, list);
445 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
446 char *sys_name, char *evt_name,
447 struct parse_events_error *err,
448 struct list_head *head_config)
450 char evt_path[MAXPATHLEN];
451 struct dirent *evt_ent;
453 int ret = 0, found = 0;
455 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
456 evt_dir = opendir(evt_path);
458 tracepoint_error(err, errno, sys_name, evt_name);
462 while (!ret && (evt_ent = readdir(evt_dir))) {
463 if (!strcmp(evt_ent->d_name, ".")
464 || !strcmp(evt_ent->d_name, "..")
465 || !strcmp(evt_ent->d_name, "enable")
466 || !strcmp(evt_ent->d_name, "filter"))
469 if (!strglobmatch(evt_ent->d_name, evt_name))
474 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
479 tracepoint_error(err, ENOENT, sys_name, evt_name);
487 static int add_tracepoint_event(struct list_head *list, int *idx,
488 char *sys_name, char *evt_name,
489 struct parse_events_error *err,
490 struct list_head *head_config)
492 return strpbrk(evt_name, "*?") ?
493 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
495 add_tracepoint(list, idx, sys_name, evt_name,
499 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
500 char *sys_name, char *evt_name,
501 struct parse_events_error *err,
502 struct list_head *head_config)
504 struct dirent *events_ent;
508 events_dir = opendir(tracing_events_path);
510 tracepoint_error(err, errno, sys_name, evt_name);
514 while (!ret && (events_ent = readdir(events_dir))) {
515 if (!strcmp(events_ent->d_name, ".")
516 || !strcmp(events_ent->d_name, "..")
517 || !strcmp(events_ent->d_name, "enable")
518 || !strcmp(events_ent->d_name, "header_event")
519 || !strcmp(events_ent->d_name, "header_page"))
522 if (!strglobmatch(events_ent->d_name, sys_name))
525 ret = add_tracepoint_event(list, idx, events_ent->d_name,
526 evt_name, err, head_config);
529 closedir(events_dir);
533 struct __add_bpf_event_param {
534 struct parse_events_evlist *data;
535 struct list_head *list;
538 static int add_bpf_event(struct probe_trace_event *tev, int fd,
541 LIST_HEAD(new_evsels);
542 struct __add_bpf_event_param *param = _param;
543 struct parse_events_evlist *evlist = param->data;
544 struct list_head *list = param->list;
545 struct perf_evsel *pos;
548 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
549 tev->group, tev->event, fd);
551 err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, tev->group,
552 tev->event, evlist->error, NULL);
554 struct perf_evsel *evsel, *tmp;
556 pr_debug("Failed to add BPF event %s:%s\n",
557 tev->group, tev->event);
558 list_for_each_entry_safe(evsel, tmp, &new_evsels, node) {
559 list_del(&evsel->node);
560 perf_evsel__delete(evsel);
564 pr_debug("adding %s:%s\n", tev->group, tev->event);
566 list_for_each_entry(pos, &new_evsels, node) {
567 pr_debug("adding %s:%s to %p\n",
568 tev->group, tev->event, pos);
571 list_splice(&new_evsels, list);
575 int parse_events_load_bpf_obj(struct parse_events_evlist *data,
576 struct list_head *list,
577 struct bpf_object *obj)
581 struct __add_bpf_event_param param = {data, list};
582 static bool registered_unprobe_atexit = false;
584 if (IS_ERR(obj) || !obj) {
585 snprintf(errbuf, sizeof(errbuf),
586 "Internal error: load bpf obj with NULL");
592 * Register atexit handler before calling bpf__probe() so
593 * bpf__probe() don't need to unprobe probe points its already
594 * created when failure.
596 if (!registered_unprobe_atexit) {
598 registered_unprobe_atexit = true;
601 err = bpf__probe(obj);
603 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
607 err = bpf__load(obj);
609 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
613 err = bpf__foreach_tev(obj, add_bpf_event, ¶m);
615 snprintf(errbuf, sizeof(errbuf),
616 "Attach events in BPF object failed");
622 data->error->help = strdup("(add -v to see detail)");
623 data->error->str = strdup(errbuf);
627 int parse_events_load_bpf(struct parse_events_evlist *data,
628 struct list_head *list,
632 struct bpf_object *obj;
634 obj = bpf__prepare_load(bpf_file_name, source);
642 snprintf(errbuf, sizeof(errbuf),
643 "BPF support is not compiled");
645 bpf__strerror_prepare_load(bpf_file_name,
650 data->error->help = strdup("(add -v to see detail)");
651 data->error->str = strdup(errbuf);
655 return parse_events_load_bpf_obj(data, list, obj);
659 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
663 for (i = 0; i < 3; i++) {
664 if (!type || !type[i])
667 #define CHECK_SET_TYPE(bit) \
669 if (attr->bp_type & bit) \
672 attr->bp_type |= bit; \
677 CHECK_SET_TYPE(HW_BREAKPOINT_R);
680 CHECK_SET_TYPE(HW_BREAKPOINT_W);
683 CHECK_SET_TYPE(HW_BREAKPOINT_X);
690 #undef CHECK_SET_TYPE
692 if (!attr->bp_type) /* Default */
693 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
698 int parse_events_add_breakpoint(struct list_head *list, int *idx,
699 void *ptr, char *type, u64 len)
701 struct perf_event_attr attr;
703 memset(&attr, 0, sizeof(attr));
704 attr.bp_addr = (unsigned long) ptr;
706 if (parse_breakpoint_type(type, &attr))
709 /* Provide some defaults if len is not specified */
711 if (attr.bp_type == HW_BREAKPOINT_X)
714 len = HW_BREAKPOINT_LEN_4;
719 attr.type = PERF_TYPE_BREAKPOINT;
720 attr.sample_period = 1;
722 return add_event(list, idx, &attr, NULL, NULL);
725 static int check_type_val(struct parse_events_term *term,
726 struct parse_events_error *err,
729 if (type == term->type_val)
733 err->idx = term->err_val;
734 if (type == PARSE_EVENTS__TERM_TYPE_NUM)
735 err->str = strdup("expected numeric value");
737 err->str = strdup("expected string value");
742 typedef int config_term_func_t(struct perf_event_attr *attr,
743 struct parse_events_term *term,
744 struct parse_events_error *err);
746 static int config_term_common(struct perf_event_attr *attr,
747 struct parse_events_term *term,
748 struct parse_events_error *err)
750 #define CHECK_TYPE_VAL(type) \
752 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
756 switch (term->type_term) {
757 case PARSE_EVENTS__TERM_TYPE_CONFIG:
759 attr->config = term->val.num;
761 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
763 attr->config1 = term->val.num;
765 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
767 attr->config2 = term->val.num;
769 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
772 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
775 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
777 * TODO uncomment when the field is available
778 * attr->branch_sample_type = term->val.num;
781 case PARSE_EVENTS__TERM_TYPE_TIME:
783 if (term->val.num > 1) {
784 err->str = strdup("expected 0 or 1");
785 err->idx = term->err_val;
789 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
792 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
795 case PARSE_EVENTS__TERM_TYPE_INHERIT:
798 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
801 case PARSE_EVENTS__TERM_TYPE_NAME:
805 err->str = strdup("unknown term");
806 err->idx = term->err_term;
807 err->help = parse_events_formats_error_string(NULL);
812 #undef CHECK_TYPE_VAL
815 static int config_term_pmu(struct perf_event_attr *attr,
816 struct parse_events_term *term,
817 struct parse_events_error *err)
819 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER)
821 * Always succeed for sysfs terms, as we dont know
822 * at this point what type they need to have.
826 return config_term_common(attr, term, err);
829 static int config_term_tracepoint(struct perf_event_attr *attr,
830 struct parse_events_term *term,
831 struct parse_events_error *err)
833 switch (term->type_term) {
834 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
835 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
836 case PARSE_EVENTS__TERM_TYPE_INHERIT:
837 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
838 return config_term_common(attr, term, err);
841 err->idx = term->err_term;
842 err->str = strdup("unknown term");
843 err->help = strdup("valid terms: call-graph,stack-size\n");
851 static int config_attr(struct perf_event_attr *attr,
852 struct list_head *head,
853 struct parse_events_error *err,
854 config_term_func_t config_term)
856 struct parse_events_term *term;
858 list_for_each_entry(term, head, list)
859 if (config_term(attr, term, err))
865 static int get_config_terms(struct list_head *head_config,
866 struct list_head *head_terms __maybe_unused)
868 #define ADD_CONFIG_TERM(__type, __name, __val) \
870 struct perf_evsel_config_term *__t; \
872 __t = zalloc(sizeof(*__t)); \
876 INIT_LIST_HEAD(&__t->list); \
877 __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
878 __t->val.__name = __val; \
879 list_add_tail(&__t->list, head_terms); \
882 struct parse_events_term *term;
884 list_for_each_entry(term, head_config, list) {
885 switch (term->type_term) {
886 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
887 ADD_CONFIG_TERM(PERIOD, period, term->val.num);
889 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
890 ADD_CONFIG_TERM(FREQ, freq, term->val.num);
892 case PARSE_EVENTS__TERM_TYPE_TIME:
893 ADD_CONFIG_TERM(TIME, time, term->val.num);
895 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
896 ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str);
898 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
899 ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num);
901 case PARSE_EVENTS__TERM_TYPE_INHERIT:
902 ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0);
904 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
905 ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1);
911 #undef ADD_EVSEL_CONFIG
915 int parse_events_add_tracepoint(struct list_head *list, int *idx,
916 char *sys, char *event,
917 struct parse_events_error *err,
918 struct list_head *head_config)
921 struct perf_event_attr attr;
923 if (config_attr(&attr, head_config, err,
924 config_term_tracepoint))
928 if (strpbrk(sys, "*?"))
929 return add_tracepoint_multi_sys(list, idx, sys, event,
932 return add_tracepoint_event(list, idx, sys, event,
936 int parse_events_add_numeric(struct parse_events_evlist *data,
937 struct list_head *list,
938 u32 type, u64 config,
939 struct list_head *head_config)
941 struct perf_event_attr attr;
942 LIST_HEAD(config_terms);
944 memset(&attr, 0, sizeof(attr));
946 attr.config = config;
949 if (config_attr(&attr, head_config, data->error,
953 if (get_config_terms(head_config, &config_terms))
957 return add_event(list, &data->idx, &attr, NULL, &config_terms);
960 static int parse_events__is_name_term(struct parse_events_term *term)
962 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
965 static char *pmu_event_name(struct list_head *head_terms)
967 struct parse_events_term *term;
969 list_for_each_entry(term, head_terms, list)
970 if (parse_events__is_name_term(term))
971 return term->val.str;
976 int parse_events_add_pmu(struct parse_events_evlist *data,
977 struct list_head *list, char *name,
978 struct list_head *head_config)
980 struct perf_event_attr attr;
981 struct perf_pmu_info info;
982 struct perf_pmu *pmu;
983 struct perf_evsel *evsel;
984 LIST_HEAD(config_terms);
986 pmu = perf_pmu__find(name);
990 if (pmu->default_config) {
991 memcpy(&attr, pmu->default_config,
992 sizeof(struct perf_event_attr));
994 memset(&attr, 0, sizeof(attr));
998 attr.type = pmu->type;
999 evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL);
1000 return evsel ? 0 : -ENOMEM;
1003 if (perf_pmu__check_alias(pmu, head_config, &info))
1007 * Configure hardcoded terms first, no need to check
1008 * return value when called with fail == 0 ;)
1010 if (config_attr(&attr, head_config, data->error, config_term_pmu))
1013 if (get_config_terms(head_config, &config_terms))
1016 if (perf_pmu__config(pmu, &attr, head_config, data->error))
1019 evsel = __add_event(list, &data->idx, &attr,
1020 pmu_event_name(head_config), pmu->cpus,
1023 evsel->unit = info.unit;
1024 evsel->scale = info.scale;
1025 evsel->per_pkg = info.per_pkg;
1026 evsel->snapshot = info.snapshot;
1029 return evsel ? 0 : -ENOMEM;
1032 int parse_events__modifier_group(struct list_head *list,
1035 return parse_events__modifier_event(list, event_mod, true);
1038 void parse_events__set_leader(char *name, struct list_head *list)
1040 struct perf_evsel *leader;
1042 if (list_empty(list)) {
1043 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1047 __perf_evlist__set_leader(list);
1048 leader = list_entry(list->next, struct perf_evsel, node);
1049 leader->group_name = name ? strdup(name) : NULL;
1052 /* list_event is assumed to point to malloc'ed memory */
1053 void parse_events_update_lists(struct list_head *list_event,
1054 struct list_head *list_all)
1057 * Called for single event definition. Update the
1058 * 'all event' list, and reinit the 'single event'
1059 * list, for next event definition.
1061 list_splice_tail(list_event, list_all);
1065 struct event_modifier {
1079 static int get_event_modifier(struct event_modifier *mod, char *str,
1080 struct perf_evsel *evsel)
1082 int eu = evsel ? evsel->attr.exclude_user : 0;
1083 int ek = evsel ? evsel->attr.exclude_kernel : 0;
1084 int eh = evsel ? evsel->attr.exclude_hv : 0;
1085 int eH = evsel ? evsel->attr.exclude_host : 0;
1086 int eG = evsel ? evsel->attr.exclude_guest : 0;
1087 int eI = evsel ? evsel->attr.exclude_idle : 0;
1088 int precise = evsel ? evsel->attr.precise_ip : 0;
1089 int precise_max = 0;
1090 int sample_read = 0;
1091 int pinned = evsel ? evsel->attr.pinned : 0;
1093 int exclude = eu | ek | eh;
1094 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1096 memset(mod, 0, sizeof(*mod));
1101 exclude = eu = ek = eh = 1;
1103 } else if (*str == 'k') {
1105 exclude = eu = ek = eh = 1;
1107 } else if (*str == 'h') {
1109 exclude = eu = ek = eh = 1;
1111 } else if (*str == 'G') {
1113 exclude_GH = eG = eH = 1;
1115 } else if (*str == 'H') {
1117 exclude_GH = eG = eH = 1;
1119 } else if (*str == 'I') {
1121 } else if (*str == 'p') {
1123 /* use of precise requires exclude_guest */
1126 } else if (*str == 'P') {
1128 } else if (*str == 'S') {
1130 } else if (*str == 'D') {
1141 * 0 - SAMPLE_IP can have arbitrary skid
1142 * 1 - SAMPLE_IP must have constant skid
1143 * 2 - SAMPLE_IP requested to have 0 skid
1144 * 3 - SAMPLE_IP must have 0 skid
1146 * See also PERF_RECORD_MISC_EXACT_IP
1157 mod->precise = precise;
1158 mod->precise_max = precise_max;
1159 mod->exclude_GH = exclude_GH;
1160 mod->sample_read = sample_read;
1161 mod->pinned = pinned;
1167 * Basic modifier sanity check to validate it contains only one
1168 * instance of any modifier (apart from 'p') present.
1170 static int check_modifier(char *str)
1174 /* The sizeof includes 0 byte as well. */
1175 if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1))
1179 if (*p != 'p' && strchr(p + 1, *p))
1187 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
1189 struct perf_evsel *evsel;
1190 struct event_modifier mod;
1195 if (check_modifier(str))
1198 if (!add && get_event_modifier(&mod, str, NULL))
1201 __evlist__for_each(list, evsel) {
1202 if (add && get_event_modifier(&mod, str, evsel))
1205 evsel->attr.exclude_user = mod.eu;
1206 evsel->attr.exclude_kernel = mod.ek;
1207 evsel->attr.exclude_hv = mod.eh;
1208 evsel->attr.precise_ip = mod.precise;
1209 evsel->attr.exclude_host = mod.eH;
1210 evsel->attr.exclude_guest = mod.eG;
1211 evsel->attr.exclude_idle = mod.eI;
1212 evsel->exclude_GH = mod.exclude_GH;
1213 evsel->sample_read = mod.sample_read;
1214 evsel->precise_max = mod.precise_max;
1216 if (perf_evsel__is_group_leader(evsel))
1217 evsel->attr.pinned = mod.pinned;
1223 int parse_events_name(struct list_head *list, char *name)
1225 struct perf_evsel *evsel;
1227 __evlist__for_each(list, evsel) {
1229 evsel->name = strdup(name);
1236 comp_pmu(const void *p1, const void *p2)
1238 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
1239 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
1241 return strcmp(pmu1->symbol, pmu2->symbol);
1244 static void perf_pmu__parse_cleanup(void)
1246 if (perf_pmu_events_list_num > 0) {
1247 struct perf_pmu_event_symbol *p;
1250 for (i = 0; i < perf_pmu_events_list_num; i++) {
1251 p = perf_pmu_events_list + i;
1254 free(perf_pmu_events_list);
1255 perf_pmu_events_list = NULL;
1256 perf_pmu_events_list_num = 0;
1260 #define SET_SYMBOL(str, stype) \
1269 * Read the pmu events list from sysfs
1270 * Save it into perf_pmu_events_list
1272 static void perf_pmu__parse_init(void)
1275 struct perf_pmu *pmu = NULL;
1276 struct perf_pmu_alias *alias;
1279 pmu = perf_pmu__find("cpu");
1280 if ((pmu == NULL) || list_empty(&pmu->aliases)) {
1281 perf_pmu_events_list_num = -1;
1284 list_for_each_entry(alias, &pmu->aliases, list) {
1285 if (strchr(alias->name, '-'))
1289 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
1290 if (!perf_pmu_events_list)
1292 perf_pmu_events_list_num = len;
1295 list_for_each_entry(alias, &pmu->aliases, list) {
1296 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
1297 char *tmp = strchr(alias->name, '-');
1300 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
1301 PMU_EVENT_SYMBOL_PREFIX);
1303 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
1306 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
1310 qsort(perf_pmu_events_list, len,
1311 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1315 perf_pmu__parse_cleanup();
1318 enum perf_pmu_event_symbol_type
1319 perf_pmu__parse_check(const char *name)
1321 struct perf_pmu_event_symbol p, *r;
1323 /* scan kernel pmu events from sysfs if needed */
1324 if (perf_pmu_events_list_num == 0)
1325 perf_pmu__parse_init();
1327 * name "cpu" could be prefix of cpu-cycles or cpu// events.
1328 * cpu-cycles has been handled by hardcode.
1329 * So it must be cpu// events, not kernel pmu event.
1331 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
1332 return PMU_EVENT_SYMBOL_ERR;
1334 p.symbol = strdup(name);
1335 r = bsearch(&p, perf_pmu_events_list,
1336 (size_t) perf_pmu_events_list_num,
1337 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1339 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
1342 static int parse_events__scanner(const char *str, void *data, int start_token)
1344 YY_BUFFER_STATE buffer;
1348 ret = parse_events_lex_init_extra(start_token, &scanner);
1352 buffer = parse_events__scan_string(str, scanner);
1355 parse_events_debug = 1;
1357 ret = parse_events_parse(data, scanner);
1359 parse_events__flush_buffer(buffer, scanner);
1360 parse_events__delete_buffer(buffer, scanner);
1361 parse_events_lex_destroy(scanner);
1366 * parse event config string, return a list of event terms.
1368 int parse_events_terms(struct list_head *terms, const char *str)
1370 struct parse_events_terms data = {
1375 ret = parse_events__scanner(str, &data, PE_START_TERMS);
1377 list_splice(data.terms, terms);
1383 parse_events__free_terms(data.terms);
1387 int parse_events(struct perf_evlist *evlist, const char *str,
1388 struct parse_events_error *err)
1390 struct parse_events_evlist data = {
1391 .list = LIST_HEAD_INIT(data.list),
1392 .idx = evlist->nr_entries,
1397 ret = parse_events__scanner(str, &data, PE_START_EVENTS);
1398 perf_pmu__parse_cleanup();
1400 struct perf_evsel *last;
1402 if (list_empty(&data.list)) {
1403 WARN_ONCE(true, "WARNING: event parser found nothing");
1407 perf_evlist__splice_list_tail(evlist, &data.list);
1408 evlist->nr_groups += data.nr_groups;
1409 last = perf_evlist__last(evlist);
1410 last->cmdline_group_boundary = true;
1416 * There are 2 users - builtin-record and builtin-test objects.
1417 * Both call perf_evlist__delete in case of error, so we dont
1423 #define MAX_WIDTH 1000
1424 static int get_term_width(void)
1428 get_term_dimensions(&ws);
1429 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
1432 static void parse_events_print_error(struct parse_events_error *err,
1435 const char *str = "invalid or unsupported event: ";
1436 char _buf[MAX_WIDTH];
1437 char *buf = (char *) event;
1441 /* -2 for extra '' in the final fprintf */
1442 int width = get_term_width() - 2;
1443 int len_event = strlen(event);
1444 int len_str, max_len, cut = 0;
1447 * Maximum error index indent, we will cut
1448 * the event string if it's bigger.
1450 int max_err_idx = 13;
1453 * Let's be specific with the message when
1454 * we have the precise error.
1456 str = "event syntax error: ";
1457 len_str = strlen(str);
1458 max_len = width - len_str;
1462 /* We're cutting from the beggining. */
1463 if (err->idx > max_err_idx)
1464 cut = err->idx - max_err_idx;
1466 strncpy(buf, event + cut, max_len);
1468 /* Mark cut parts with '..' on both sides. */
1470 buf[0] = buf[1] = '.';
1472 if ((len_event - cut) > max_len) {
1473 buf[max_len - 1] = buf[max_len - 2] = '.';
1477 idx = len_str + err->idx - cut;
1480 fprintf(stderr, "%s'%s'\n", str, buf);
1482 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str);
1484 fprintf(stderr, "\n%s\n", err->help);
1489 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
1494 int parse_events_option(const struct option *opt, const char *str,
1495 int unset __maybe_unused)
1497 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1498 struct parse_events_error err = { .idx = 0, };
1499 int ret = parse_events(evlist, str, &err);
1502 parse_events_print_error(&err, str);
1508 foreach_evsel_in_last_glob(struct perf_evlist *evlist,
1509 int (*func)(struct perf_evsel *evsel,
1513 struct perf_evsel *last = NULL;
1517 * Don't return when list_empty, give func a chance to report
1518 * error when it found last == NULL.
1520 * So no need to WARN here, let *func do this.
1522 if (evlist->nr_entries > 0)
1523 last = perf_evlist__last(evlist);
1526 err = (*func)(last, arg);
1532 if (last->node.prev == &evlist->entries)
1534 last = list_entry(last->node.prev, struct perf_evsel, node);
1535 } while (!last->cmdline_group_boundary);
1540 static int set_filter(struct perf_evsel *evsel, const void *arg)
1542 const char *str = arg;
1544 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1546 "--filter option should follow a -e tracepoint option\n");
1550 if (perf_evsel__append_filter(evsel, "&&", str) < 0) {
1552 "not enough memory to hold filter string\n");
1559 int parse_filter(const struct option *opt, const char *str,
1560 int unset __maybe_unused)
1562 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1564 return foreach_evsel_in_last_glob(evlist, set_filter,
1568 static int add_exclude_perf_filter(struct perf_evsel *evsel,
1569 const void *arg __maybe_unused)
1571 char new_filter[64];
1573 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1575 "--exclude-perf option should follow a -e tracepoint option\n");
1579 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
1581 if (perf_evsel__append_filter(evsel, "&&", new_filter) < 0) {
1583 "not enough memory to hold filter string\n");
1590 int exclude_perf(const struct option *opt,
1591 const char *arg __maybe_unused,
1592 int unset __maybe_unused)
1594 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1596 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
1600 static const char * const event_type_descriptors[] = {
1604 "Hardware cache event",
1605 "Raw hardware event descriptor",
1606 "Hardware breakpoint",
1609 static int cmp_string(const void *a, const void *b)
1611 const char * const *as = a;
1612 const char * const *bs = b;
1614 return strcmp(*as, *bs);
1618 * Print the events from <debugfs_mount_point>/tracing/events
1621 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
1624 DIR *sys_dir, *evt_dir;
1625 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1626 char evt_path[MAXPATHLEN];
1627 char dir_path[MAXPATHLEN];
1628 char **evt_list = NULL;
1629 unsigned int evt_i = 0, evt_num = 0;
1630 bool evt_num_known = false;
1633 sys_dir = opendir(tracing_events_path);
1637 if (evt_num_known) {
1638 evt_list = zalloc(sizeof(char *) * evt_num);
1640 goto out_close_sys_dir;
1643 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1644 if (subsys_glob != NULL &&
1645 !strglobmatch(sys_dirent.d_name, subsys_glob))
1648 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1650 evt_dir = opendir(dir_path);
1654 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1655 if (event_glob != NULL &&
1656 !strglobmatch(evt_dirent.d_name, event_glob))
1659 if (!evt_num_known) {
1664 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1665 sys_dirent.d_name, evt_dirent.d_name);
1667 evt_list[evt_i] = strdup(evt_path);
1668 if (evt_list[evt_i] == NULL)
1669 goto out_close_evt_dir;
1676 if (!evt_num_known) {
1677 evt_num_known = true;
1680 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1682 while (evt_i < evt_num) {
1684 printf("%s ", evt_list[evt_i++]);
1687 printf(" %-50s [%s]\n", evt_list[evt_i++],
1688 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1690 if (evt_num && pager_in_use())
1695 for (evt_i = 0; evt_i < evt_num; evt_i++)
1696 zfree(&evt_list[evt_i]);
1705 printf("FATAL: not enough memory to print %s\n",
1706 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1712 * Check whether event is in <debugfs_mount_point>/tracing/events
1715 int is_valid_tracepoint(const char *event_string)
1717 DIR *sys_dir, *evt_dir;
1718 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1719 char evt_path[MAXPATHLEN];
1720 char dir_path[MAXPATHLEN];
1722 sys_dir = opendir(tracing_events_path);
1726 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1728 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1730 evt_dir = opendir(dir_path);
1734 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1735 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1736 sys_dirent.d_name, evt_dirent.d_name);
1737 if (!strcmp(evt_path, event_string)) {
1749 static bool is_event_supported(u8 type, unsigned config)
1753 struct perf_evsel *evsel;
1754 struct perf_event_attr attr = {
1760 struct thread_map map;
1767 evsel = perf_evsel__new(&attr);
1769 open_return = perf_evsel__open(evsel, NULL, &tmap.map);
1770 ret = open_return >= 0;
1772 if (open_return == -EACCES) {
1774 * This happens if the paranoid value
1775 * /proc/sys/kernel/perf_event_paranoid is set to 2
1776 * Re-run with exclude_kernel set; we don't do that
1777 * by default as some ARM machines do not support it.
1780 evsel->attr.exclude_kernel = 1;
1781 ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
1783 perf_evsel__delete(evsel);
1789 int print_hwcache_events(const char *event_glob, bool name_only)
1791 unsigned int type, op, i, evt_i = 0, evt_num = 0;
1793 char **evt_list = NULL;
1794 bool evt_num_known = false;
1797 if (evt_num_known) {
1798 evt_list = zalloc(sizeof(char *) * evt_num);
1803 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1804 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1805 /* skip invalid cache type */
1806 if (!perf_evsel__is_cache_op_valid(type, op))
1809 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1810 __perf_evsel__hw_cache_type_op_res_name(type, op, i,
1811 name, sizeof(name));
1812 if (event_glob != NULL && !strglobmatch(name, event_glob))
1815 if (!is_event_supported(PERF_TYPE_HW_CACHE,
1816 type | (op << 8) | (i << 16)))
1819 if (!evt_num_known) {
1824 evt_list[evt_i] = strdup(name);
1825 if (evt_list[evt_i] == NULL)
1832 if (!evt_num_known) {
1833 evt_num_known = true;
1836 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1838 while (evt_i < evt_num) {
1840 printf("%s ", evt_list[evt_i++]);
1843 printf(" %-50s [%s]\n", evt_list[evt_i++],
1844 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1846 if (evt_num && pager_in_use())
1851 for (evt_i = 0; evt_i < evt_num; evt_i++)
1852 zfree(&evt_list[evt_i]);
1857 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
1863 void print_symbol_events(const char *event_glob, unsigned type,
1864 struct event_symbol *syms, unsigned max,
1867 unsigned int i, evt_i = 0, evt_num = 0;
1868 char name[MAX_NAME_LEN];
1869 char **evt_list = NULL;
1870 bool evt_num_known = false;
1873 if (evt_num_known) {
1874 evt_list = zalloc(sizeof(char *) * evt_num);
1880 for (i = 0; i < max; i++, syms++) {
1882 if (event_glob != NULL &&
1883 !(strglobmatch(syms->symbol, event_glob) ||
1884 (syms->alias && strglobmatch(syms->alias, event_glob))))
1887 if (!is_event_supported(type, i))
1890 if (!evt_num_known) {
1895 if (!name_only && strlen(syms->alias))
1896 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1898 strncpy(name, syms->symbol, MAX_NAME_LEN);
1900 evt_list[evt_i] = strdup(name);
1901 if (evt_list[evt_i] == NULL)
1906 if (!evt_num_known) {
1907 evt_num_known = true;
1910 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1912 while (evt_i < evt_num) {
1914 printf("%s ", evt_list[evt_i++]);
1917 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
1919 if (evt_num && pager_in_use())
1924 for (evt_i = 0; evt_i < evt_num; evt_i++)
1925 zfree(&evt_list[evt_i]);
1930 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
1936 * Print the help text for the event symbols:
1938 void print_events(const char *event_glob, bool name_only)
1940 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
1941 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
1943 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
1944 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
1946 print_hwcache_events(event_glob, name_only);
1948 print_pmu_events(event_glob, name_only);
1950 if (event_glob != NULL)
1954 printf(" %-50s [%s]\n",
1956 event_type_descriptors[PERF_TYPE_RAW]);
1957 printf(" %-50s [%s]\n",
1958 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1959 event_type_descriptors[PERF_TYPE_RAW]);
1961 printf(" (see 'man perf-list' on how to encode it)\n\n");
1963 printf(" %-50s [%s]\n",
1964 "mem:<addr>[/len][:access]",
1965 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1970 print_tracepoint_events(NULL, NULL, name_only);
1973 int parse_events__is_hardcoded_term(struct parse_events_term *term)
1975 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
1978 static int new_term(struct parse_events_term **_term, int type_val,
1979 int type_term, char *config,
1980 char *str, u64 num, int err_term, int err_val)
1982 struct parse_events_term *term;
1984 term = zalloc(sizeof(*term));
1988 INIT_LIST_HEAD(&term->list);
1989 term->type_val = type_val;
1990 term->type_term = type_term;
1991 term->config = config;
1992 term->err_term = err_term;
1993 term->err_val = err_val;
1996 case PARSE_EVENTS__TERM_TYPE_NUM:
1997 term->val.num = num;
1999 case PARSE_EVENTS__TERM_TYPE_STR:
2000 term->val.str = str;
2011 int parse_events_term__num(struct parse_events_term **term,
2012 int type_term, char *config, u64 num,
2013 void *loc_term_, void *loc_val_)
2015 YYLTYPE *loc_term = loc_term_;
2016 YYLTYPE *loc_val = loc_val_;
2018 return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
2020 loc_term ? loc_term->first_column : 0,
2021 loc_val ? loc_val->first_column : 0);
2024 int parse_events_term__str(struct parse_events_term **term,
2025 int type_term, char *config, char *str,
2026 void *loc_term_, void *loc_val_)
2028 YYLTYPE *loc_term = loc_term_;
2029 YYLTYPE *loc_val = loc_val_;
2031 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
2033 loc_term ? loc_term->first_column : 0,
2034 loc_val ? loc_val->first_column : 0);
2037 int parse_events_term__sym_hw(struct parse_events_term **term,
2038 char *config, unsigned idx)
2040 struct event_symbol *sym;
2042 BUG_ON(idx >= PERF_COUNT_HW_MAX);
2043 sym = &event_symbols_hw[idx];
2046 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2047 PARSE_EVENTS__TERM_TYPE_USER, config,
2048 (char *) sym->symbol, 0, 0, 0);
2050 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2051 PARSE_EVENTS__TERM_TYPE_USER,
2052 (char *) "event", (char *) sym->symbol,
2056 int parse_events_term__clone(struct parse_events_term **new,
2057 struct parse_events_term *term)
2059 return new_term(new, term->type_val, term->type_term, term->config,
2060 term->val.str, term->val.num,
2061 term->err_term, term->err_val);
2064 void parse_events__free_terms(struct list_head *terms)
2066 struct parse_events_term *term, *h;
2068 list_for_each_entry_safe(term, h, terms, list)
2072 void parse_events_evlist_error(struct parse_events_evlist *data,
2073 int idx, const char *str)
2075 struct parse_events_error *err = data->error;
2080 err->str = strdup(str);
2081 WARN_ONCE(!err->str, "WARNING: failed to allocate error string");
2085 * Return string contains valid config terms of an event.
2086 * @additional_terms: For terms such as PMU sysfs terms.
2088 char *parse_events_formats_error_string(char *additional_terms)
2091 static const char *static_terms = "config,config1,config2,name,"
2092 "period,freq,branch_type,time,"
2093 "call-graph,stack-size\n";
2096 if (additional_terms) {
2097 if (!asprintf(&str, "valid terms: %s,%s",
2098 additional_terms, static_terms))
2101 if (!asprintf(&str, "valid terms: %s", static_terms))