1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/hw_breakpoint.h>
4 #include <linux/zalloc.h>
11 #include <sys/param.h>
16 #include <subcmd/pager.h>
17 #include <subcmd/parse-options.h>
18 #include "parse-events.h"
19 #include <subcmd/exec-cmd.h>
24 #include "bpf-loader.h"
26 #include <api/fs/tracing_path.h>
27 #include <perf/cpumap.h>
28 #include "parse-events-bison.h"
29 #define YY_EXTRA_TYPE void*
30 #include "parse-events-flex.h"
32 #include "thread_map.h"
33 #include "probe-file.h"
35 #include "util/parse-branch-options.h"
36 #include "metricgroup.h"
37 #include "util/evsel_config.h"
38 #include "util/event.h"
42 #define MAX_NAME_LEN 100
45 extern int parse_events_debug;
47 int parse_events_parse(void *parse_state, void *scanner);
48 static int get_config_terms(struct list_head *head_config,
49 struct list_head *head_terms __maybe_unused);
51 static struct perf_pmu_event_symbol *perf_pmu_events_list;
53 * The variable indicates the number of supported pmu event symbols.
54 * 0 means not initialized and ready to init
55 * -1 means failed to init, don't try anymore
56 * >0 is the number of supported pmu event symbols
58 static int perf_pmu_events_list_num;
60 struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
61 [PERF_COUNT_HW_CPU_CYCLES] = {
62 .symbol = "cpu-cycles",
65 [PERF_COUNT_HW_INSTRUCTIONS] = {
66 .symbol = "instructions",
69 [PERF_COUNT_HW_CACHE_REFERENCES] = {
70 .symbol = "cache-references",
73 [PERF_COUNT_HW_CACHE_MISSES] = {
74 .symbol = "cache-misses",
77 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
78 .symbol = "branch-instructions",
81 [PERF_COUNT_HW_BRANCH_MISSES] = {
82 .symbol = "branch-misses",
85 [PERF_COUNT_HW_BUS_CYCLES] = {
86 .symbol = "bus-cycles",
89 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
90 .symbol = "stalled-cycles-frontend",
91 .alias = "idle-cycles-frontend",
93 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
94 .symbol = "stalled-cycles-backend",
95 .alias = "idle-cycles-backend",
97 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
98 .symbol = "ref-cycles",
103 struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
104 [PERF_COUNT_SW_CPU_CLOCK] = {
105 .symbol = "cpu-clock",
108 [PERF_COUNT_SW_TASK_CLOCK] = {
109 .symbol = "task-clock",
112 [PERF_COUNT_SW_PAGE_FAULTS] = {
113 .symbol = "page-faults",
116 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
117 .symbol = "context-switches",
120 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
121 .symbol = "cpu-migrations",
122 .alias = "migrations",
124 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
125 .symbol = "minor-faults",
128 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
129 .symbol = "major-faults",
132 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
133 .symbol = "alignment-faults",
136 [PERF_COUNT_SW_EMULATION_FAULTS] = {
137 .symbol = "emulation-faults",
140 [PERF_COUNT_SW_DUMMY] = {
144 [PERF_COUNT_SW_BPF_OUTPUT] = {
145 .symbol = "bpf-output",
150 #define __PERF_EVENT_FIELD(config, name) \
151 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
153 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
154 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
155 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
156 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
158 #define for_each_subsystem(sys_dir, sys_dirent) \
159 while ((sys_dirent = readdir(sys_dir)) != NULL) \
160 if (sys_dirent->d_type == DT_DIR && \
161 (strcmp(sys_dirent->d_name, ".")) && \
162 (strcmp(sys_dirent->d_name, "..")))
164 static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir)
166 char evt_path[MAXPATHLEN];
169 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name);
170 fd = open(evt_path, O_RDONLY);
178 #define for_each_event(dir_path, evt_dir, evt_dirent) \
179 while ((evt_dirent = readdir(evt_dir)) != NULL) \
180 if (evt_dirent->d_type == DT_DIR && \
181 (strcmp(evt_dirent->d_name, ".")) && \
182 (strcmp(evt_dirent->d_name, "..")) && \
183 (!tp_event_has_id(dir_path, evt_dirent)))
185 #define MAX_EVENT_LENGTH 512
187 void parse_events__handle_error(struct parse_events_error *err, int idx,
188 char *str, char *help)
190 if (WARN(!str, "WARNING: failed to provide error string\n")) {
194 switch (err->num_errors) {
201 err->first_idx = err->idx;
203 err->first_str = err->str;
205 err->first_help = err->help;
209 pr_debug("Multiple errors dropping message: %s (%s)\n",
210 err->str, err->help);
220 struct tracepoint_path *tracepoint_id_to_path(u64 config)
222 struct tracepoint_path *path = NULL;
223 DIR *sys_dir, *evt_dir;
224 struct dirent *sys_dirent, *evt_dirent;
228 char evt_path[MAXPATHLEN];
231 sys_dir = tracing_events__opendir();
235 for_each_subsystem(sys_dir, sys_dirent) {
236 dir_path = get_events_file(sys_dirent->d_name);
239 evt_dir = opendir(dir_path);
243 for_each_event(dir_path, evt_dir, evt_dirent) {
245 scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
247 fd = open(evt_path, O_RDONLY);
250 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
257 put_events_file(dir_path);
260 path = zalloc(sizeof(*path));
263 if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) {
267 if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) {
268 zfree(&path->system);
277 put_events_file(dir_path);
284 struct tracepoint_path *tracepoint_name_to_path(const char *name)
286 struct tracepoint_path *path = zalloc(sizeof(*path));
287 char *str = strchr(name, ':');
289 if (path == NULL || str == NULL) {
294 path->system = strndup(name, str - name);
295 path->name = strdup(str+1);
297 if (path->system == NULL || path->name == NULL) {
298 zfree(&path->system);
306 const char *event_type(int type)
309 case PERF_TYPE_HARDWARE:
312 case PERF_TYPE_SOFTWARE:
315 case PERF_TYPE_TRACEPOINT:
318 case PERF_TYPE_HW_CACHE:
319 return "hardware-cache";
328 static int parse_events__is_name_term(struct parse_events_term *term)
330 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
333 static char *get_config_name(struct list_head *head_terms)
335 struct parse_events_term *term;
340 list_for_each_entry(term, head_terms, list)
341 if (parse_events__is_name_term(term))
342 return term->val.str;
347 static struct evsel *
348 __add_event(struct list_head *list, int *idx,
349 struct perf_event_attr *attr,
351 char *name, struct perf_pmu *pmu,
352 struct list_head *config_terms, bool auto_merge_stats,
353 const char *cpu_list)
356 struct perf_cpu_map *cpus = pmu ? perf_cpu_map__get(pmu->cpus) :
357 cpu_list ? perf_cpu_map__new(cpu_list) : NULL;
359 if (pmu && attr->type == PERF_TYPE_RAW)
360 perf_pmu__warn_invalid_config(pmu, attr->config, name);
363 event_attr_init(attr);
365 evsel = evsel__new_idx(attr, *idx);
367 perf_cpu_map__put(cpus);
372 evsel->core.cpus = cpus;
373 evsel->core.own_cpus = perf_cpu_map__get(cpus);
374 evsel->core.system_wide = pmu ? pmu->is_uncore : false;
375 evsel->auto_merge_stats = auto_merge_stats;
378 evsel->name = strdup(name);
381 list_splice(config_terms, &evsel->config_terms);
384 list_add_tail(&evsel->core.node, list);
389 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
390 char *name, struct perf_pmu *pmu)
392 return __add_event(NULL, &idx, attr, false, name, pmu, NULL, false,
396 static int add_event(struct list_head *list, int *idx,
397 struct perf_event_attr *attr, char *name,
398 struct list_head *config_terms)
400 return __add_event(list, idx, attr, true, name, NULL, config_terms,
401 false, NULL) ? 0 : -ENOMEM;
404 static int add_event_tool(struct list_head *list, int *idx,
405 enum perf_tool_event tool_event)
408 struct perf_event_attr attr = {
409 .type = PERF_TYPE_SOFTWARE,
410 .config = PERF_COUNT_SW_DUMMY,
413 evsel = __add_event(list, idx, &attr, true, NULL, NULL, NULL, false,
417 evsel->tool_event = tool_event;
418 if (tool_event == PERF_TOOL_DURATION_TIME)
423 static int parse_aliases(char *str, const char *names[][EVSEL__MAX_ALIASES], int size)
428 for (i = 0; i < size; i++) {
429 for (j = 0; j < EVSEL__MAX_ALIASES && names[i][j]; j++) {
430 n = strlen(names[i][j]);
431 if (n > longest && !strncasecmp(str, names[i][j], n))
441 typedef int config_term_func_t(struct perf_event_attr *attr,
442 struct parse_events_term *term,
443 struct parse_events_error *err);
444 static int config_term_common(struct perf_event_attr *attr,
445 struct parse_events_term *term,
446 struct parse_events_error *err);
447 static int config_attr(struct perf_event_attr *attr,
448 struct list_head *head,
449 struct parse_events_error *err,
450 config_term_func_t config_term);
452 int parse_events_add_cache(struct list_head *list, int *idx,
453 char *type, char *op_result1, char *op_result2,
454 struct parse_events_error *err,
455 struct list_head *head_config)
457 struct perf_event_attr attr;
458 LIST_HEAD(config_terms);
459 char name[MAX_NAME_LEN], *config_name;
460 int cache_type = -1, cache_op = -1, cache_result = -1;
461 char *op_result[2] = { op_result1, op_result2 };
465 * No fallback - if we cannot get a clear cache type
468 cache_type = parse_aliases(type, evsel__hw_cache, PERF_COUNT_HW_CACHE_MAX);
469 if (cache_type == -1)
472 config_name = get_config_name(head_config);
473 n = snprintf(name, MAX_NAME_LEN, "%s", type);
475 for (i = 0; (i < 2) && (op_result[i]); i++) {
476 char *str = op_result[i];
478 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
480 if (cache_op == -1) {
481 cache_op = parse_aliases(str, evsel__hw_cache_op,
482 PERF_COUNT_HW_CACHE_OP_MAX);
484 if (!evsel__is_cache_op_valid(cache_type, cache_op))
490 if (cache_result == -1) {
491 cache_result = parse_aliases(str, evsel__hw_cache_result,
492 PERF_COUNT_HW_CACHE_RESULT_MAX);
493 if (cache_result >= 0)
499 * Fall back to reads:
502 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
505 * Fall back to accesses:
507 if (cache_result == -1)
508 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
510 memset(&attr, 0, sizeof(attr));
511 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
512 attr.type = PERF_TYPE_HW_CACHE;
515 if (config_attr(&attr, head_config, err,
519 if (get_config_terms(head_config, &config_terms))
522 return add_event(list, idx, &attr, config_name ? : name, &config_terms);
525 static void tracepoint_error(struct parse_events_error *e, int err,
526 const char *sys, const char *name)
535 * We get error directly from syscall errno ( > 0),
536 * or from encoded pointer's error ( < 0).
542 str = "can't access trace events";
545 str = "unknown tracepoint";
548 str = "failed to add tracepoint";
552 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
553 parse_events__handle_error(e, 0, strdup(str), strdup(help));
556 static int add_tracepoint(struct list_head *list, int *idx,
557 const char *sys_name, const char *evt_name,
558 struct parse_events_error *err,
559 struct list_head *head_config)
561 struct evsel *evsel = evsel__newtp_idx(sys_name, evt_name, (*idx)++);
564 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
565 return PTR_ERR(evsel);
569 LIST_HEAD(config_terms);
571 if (get_config_terms(head_config, &config_terms))
573 list_splice(&config_terms, &evsel->config_terms);
576 list_add_tail(&evsel->core.node, list);
580 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
581 const char *sys_name, const char *evt_name,
582 struct parse_events_error *err,
583 struct list_head *head_config)
586 struct dirent *evt_ent;
588 int ret = 0, found = 0;
590 evt_path = get_events_file(sys_name);
592 tracepoint_error(err, errno, sys_name, evt_name);
595 evt_dir = opendir(evt_path);
597 put_events_file(evt_path);
598 tracepoint_error(err, errno, sys_name, evt_name);
602 while (!ret && (evt_ent = readdir(evt_dir))) {
603 if (!strcmp(evt_ent->d_name, ".")
604 || !strcmp(evt_ent->d_name, "..")
605 || !strcmp(evt_ent->d_name, "enable")
606 || !strcmp(evt_ent->d_name, "filter"))
609 if (!strglobmatch(evt_ent->d_name, evt_name))
614 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
619 tracepoint_error(err, ENOENT, sys_name, evt_name);
623 put_events_file(evt_path);
628 static int add_tracepoint_event(struct list_head *list, int *idx,
629 const char *sys_name, const char *evt_name,
630 struct parse_events_error *err,
631 struct list_head *head_config)
633 return strpbrk(evt_name, "*?") ?
634 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
636 add_tracepoint(list, idx, sys_name, evt_name,
640 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
641 const char *sys_name, const char *evt_name,
642 struct parse_events_error *err,
643 struct list_head *head_config)
645 struct dirent *events_ent;
649 events_dir = tracing_events__opendir();
651 tracepoint_error(err, errno, sys_name, evt_name);
655 while (!ret && (events_ent = readdir(events_dir))) {
656 if (!strcmp(events_ent->d_name, ".")
657 || !strcmp(events_ent->d_name, "..")
658 || !strcmp(events_ent->d_name, "enable")
659 || !strcmp(events_ent->d_name, "header_event")
660 || !strcmp(events_ent->d_name, "header_page"))
663 if (!strglobmatch(events_ent->d_name, sys_name))
666 ret = add_tracepoint_event(list, idx, events_ent->d_name,
667 evt_name, err, head_config);
670 closedir(events_dir);
674 #ifdef HAVE_LIBBPF_SUPPORT
675 struct __add_bpf_event_param {
676 struct parse_events_state *parse_state;
677 struct list_head *list;
678 struct list_head *head_config;
681 static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj,
684 LIST_HEAD(new_evsels);
685 struct __add_bpf_event_param *param = _param;
686 struct parse_events_state *parse_state = param->parse_state;
687 struct list_head *list = param->list;
691 * Check if we should add the event, i.e. if it is a TP but starts with a '!',
692 * then don't add the tracepoint, this will be used for something else, like
693 * adding to a BPF_MAP_TYPE_PROG_ARRAY.
695 * See tools/perf/examples/bpf/augmented_raw_syscalls.c
700 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
703 err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group,
704 event, parse_state->error,
707 struct evsel *evsel, *tmp;
709 pr_debug("Failed to add BPF event %s:%s\n",
711 list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) {
712 list_del_init(&evsel->core.node);
713 evsel__delete(evsel);
717 pr_debug("adding %s:%s\n", group, event);
719 list_for_each_entry(pos, &new_evsels, core.node) {
720 pr_debug("adding %s:%s to %p\n",
725 list_splice(&new_evsels, list);
729 int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
730 struct list_head *list,
731 struct bpf_object *obj,
732 struct list_head *head_config)
736 struct __add_bpf_event_param param = {parse_state, list, head_config};
737 static bool registered_unprobe_atexit = false;
739 if (IS_ERR(obj) || !obj) {
740 snprintf(errbuf, sizeof(errbuf),
741 "Internal error: load bpf obj with NULL");
747 * Register atexit handler before calling bpf__probe() so
748 * bpf__probe() don't need to unprobe probe points its already
749 * created when failure.
751 if (!registered_unprobe_atexit) {
753 registered_unprobe_atexit = true;
756 err = bpf__probe(obj);
758 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
762 err = bpf__load(obj);
764 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
768 err = bpf__foreach_event(obj, add_bpf_event, ¶m);
770 snprintf(errbuf, sizeof(errbuf),
771 "Attach events in BPF object failed");
777 parse_events__handle_error(parse_state->error, 0,
778 strdup(errbuf), strdup("(add -v to see detail)"));
783 parse_events_config_bpf(struct parse_events_state *parse_state,
784 struct bpf_object *obj,
785 struct list_head *head_config)
787 struct parse_events_term *term;
790 if (!head_config || list_empty(head_config))
793 list_for_each_entry(term, head_config, list) {
796 if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) {
797 parse_events__handle_error(parse_state->error, term->err_term,
798 strdup("Invalid config term for BPF object"),
803 err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos);
808 bpf__strerror_config_obj(obj, term, parse_state->evlist,
809 &error_pos, err, errbuf,
812 if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE)
815 idx = term->err_term + error_pos;
817 parse_events__handle_error(parse_state->error, idx,
820 "Hint:\tValid config terms:\n"
821 " \tmap:[<arraymap>].value<indices>=[value]\n"
822 " \tmap:[<eventmap>].event<indices>=[event]\n"
824 " \twhere <indices> is something like [0,3...5] or [all]\n"
825 " \t(add -v to see detail)"));
833 * Split config terms:
834 * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ...
835 * 'call-graph=fp' is 'evt config', should be applied to each
837 * 'map:array.value[0]=1' is 'obj config', should be processed
838 * with parse_events_config_bpf.
840 * Move object config terms from the first list to obj_head_config.
843 split_bpf_config_terms(struct list_head *evt_head_config,
844 struct list_head *obj_head_config)
846 struct parse_events_term *term, *temp;
849 * Currectly, all possible user config term
850 * belong to bpf object. parse_events__is_hardcoded_term()
851 * happends to be a good flag.
853 * See parse_events_config_bpf() and
854 * config_term_tracepoint().
856 list_for_each_entry_safe(term, temp, evt_head_config, list)
857 if (!parse_events__is_hardcoded_term(term))
858 list_move_tail(&term->list, obj_head_config);
861 int parse_events_load_bpf(struct parse_events_state *parse_state,
862 struct list_head *list,
865 struct list_head *head_config)
868 struct bpf_object *obj;
869 LIST_HEAD(obj_head_config);
872 split_bpf_config_terms(head_config, &obj_head_config);
874 obj = bpf__prepare_load(bpf_file_name, source);
881 snprintf(errbuf, sizeof(errbuf),
882 "BPF support is not compiled");
884 bpf__strerror_prepare_load(bpf_file_name,
889 parse_events__handle_error(parse_state->error, 0,
890 strdup(errbuf), strdup("(add -v to see detail)"));
894 err = parse_events_load_bpf_obj(parse_state, list, obj, head_config);
897 err = parse_events_config_bpf(parse_state, obj, &obj_head_config);
900 * Caller doesn't know anything about obj_head_config,
901 * so combine them together again before returnning.
904 list_splice_tail(&obj_head_config, head_config);
907 #else // HAVE_LIBBPF_SUPPORT
908 int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
909 struct list_head *list __maybe_unused,
910 struct bpf_object *obj __maybe_unused,
911 struct list_head *head_config __maybe_unused)
913 parse_events__handle_error(parse_state->error, 0,
914 strdup("BPF support is not compiled"),
915 strdup("Make sure libbpf-devel is available at build time."));
919 int parse_events_load_bpf(struct parse_events_state *parse_state,
920 struct list_head *list __maybe_unused,
921 char *bpf_file_name __maybe_unused,
922 bool source __maybe_unused,
923 struct list_head *head_config __maybe_unused)
925 parse_events__handle_error(parse_state->error, 0,
926 strdup("BPF support is not compiled"),
927 strdup("Make sure libbpf-devel is available at build time."));
930 #endif // HAVE_LIBBPF_SUPPORT
933 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
937 for (i = 0; i < 3; i++) {
938 if (!type || !type[i])
941 #define CHECK_SET_TYPE(bit) \
943 if (attr->bp_type & bit) \
946 attr->bp_type |= bit; \
951 CHECK_SET_TYPE(HW_BREAKPOINT_R);
954 CHECK_SET_TYPE(HW_BREAKPOINT_W);
957 CHECK_SET_TYPE(HW_BREAKPOINT_X);
964 #undef CHECK_SET_TYPE
966 if (!attr->bp_type) /* Default */
967 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
972 int parse_events_add_breakpoint(struct list_head *list, int *idx,
973 u64 addr, char *type, u64 len)
975 struct perf_event_attr attr;
977 memset(&attr, 0, sizeof(attr));
980 if (parse_breakpoint_type(type, &attr))
983 /* Provide some defaults if len is not specified */
985 if (attr.bp_type == HW_BREAKPOINT_X)
988 len = HW_BREAKPOINT_LEN_4;
993 attr.type = PERF_TYPE_BREAKPOINT;
994 attr.sample_period = 1;
996 return add_event(list, idx, &attr, NULL, NULL);
999 static int check_type_val(struct parse_events_term *term,
1000 struct parse_events_error *err,
1003 if (type == term->type_val)
1007 parse_events__handle_error(err, term->err_val,
1008 type == PARSE_EVENTS__TERM_TYPE_NUM
1009 ? strdup("expected numeric value")
1010 : strdup("expected string value"),
1017 * Update according to parse-events.l
1019 static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
1020 [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>",
1021 [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config",
1022 [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1",
1023 [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2",
1024 [PARSE_EVENTS__TERM_TYPE_NAME] = "name",
1025 [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period",
1026 [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq",
1027 [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type",
1028 [PARSE_EVENTS__TERM_TYPE_TIME] = "time",
1029 [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph",
1030 [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size",
1031 [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit",
1032 [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit",
1033 [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack",
1034 [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr",
1035 [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite",
1036 [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
1037 [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config",
1038 [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
1039 [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
1040 [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size",
1043 static bool config_term_shrinked;
1046 config_term_avail(int term_type, struct parse_events_error *err)
1050 if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) {
1051 parse_events__handle_error(err, -1,
1052 strdup("Invalid term_type"), NULL);
1055 if (!config_term_shrinked)
1058 switch (term_type) {
1059 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1060 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1061 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1062 case PARSE_EVENTS__TERM_TYPE_NAME:
1063 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1064 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1070 /* term_type is validated so indexing is safe */
1071 if (asprintf(&err_str, "'%s' is not usable in 'perf stat'",
1072 config_term_names[term_type]) >= 0)
1073 parse_events__handle_error(err, -1, err_str, NULL);
1078 void parse_events__shrink_config_terms(void)
1080 config_term_shrinked = true;
1083 static int config_term_common(struct perf_event_attr *attr,
1084 struct parse_events_term *term,
1085 struct parse_events_error *err)
1087 #define CHECK_TYPE_VAL(type) \
1089 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
1093 switch (term->type_term) {
1094 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1095 CHECK_TYPE_VAL(NUM);
1096 attr->config = term->val.num;
1098 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1099 CHECK_TYPE_VAL(NUM);
1100 attr->config1 = term->val.num;
1102 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1103 CHECK_TYPE_VAL(NUM);
1104 attr->config2 = term->val.num;
1106 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1107 CHECK_TYPE_VAL(NUM);
1109 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1110 CHECK_TYPE_VAL(NUM);
1112 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1113 CHECK_TYPE_VAL(STR);
1114 if (strcmp(term->val.str, "no") &&
1115 parse_branch_str(term->val.str,
1116 &attr->branch_sample_type)) {
1117 parse_events__handle_error(err, term->err_val,
1118 strdup("invalid branch sample type"),
1123 case PARSE_EVENTS__TERM_TYPE_TIME:
1124 CHECK_TYPE_VAL(NUM);
1125 if (term->val.num > 1) {
1126 parse_events__handle_error(err, term->err_val,
1127 strdup("expected 0 or 1"),
1132 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1133 CHECK_TYPE_VAL(STR);
1135 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1136 CHECK_TYPE_VAL(NUM);
1138 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1139 CHECK_TYPE_VAL(NUM);
1141 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1142 CHECK_TYPE_VAL(NUM);
1144 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1145 CHECK_TYPE_VAL(NUM);
1147 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1148 CHECK_TYPE_VAL(NUM);
1150 case PARSE_EVENTS__TERM_TYPE_NAME:
1151 CHECK_TYPE_VAL(STR);
1153 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1154 CHECK_TYPE_VAL(NUM);
1156 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1157 CHECK_TYPE_VAL(NUM);
1159 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1160 CHECK_TYPE_VAL(NUM);
1161 if ((unsigned int)term->val.num > 1) {
1162 parse_events__handle_error(err, term->err_val,
1163 strdup("expected 0 or 1"),
1168 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1169 CHECK_TYPE_VAL(NUM);
1171 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1172 CHECK_TYPE_VAL(NUM);
1173 if (term->val.num > UINT_MAX) {
1174 parse_events__handle_error(err, term->err_val,
1181 parse_events__handle_error(err, term->err_term,
1182 strdup("unknown term"),
1183 parse_events_formats_error_string(NULL));
1188 * Check term availbility after basic checking so
1189 * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered.
1191 * If check availbility at the entry of this function,
1192 * user will see "'<sysfs term>' is not usable in 'perf stat'"
1193 * if an invalid config term is provided for legacy events
1194 * (for example, instructions/badterm/...), which is confusing.
1196 if (!config_term_avail(term->type_term, err))
1199 #undef CHECK_TYPE_VAL
1202 static int config_term_pmu(struct perf_event_attr *attr,
1203 struct parse_events_term *term,
1204 struct parse_events_error *err)
1206 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER ||
1207 term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG)
1209 * Always succeed for sysfs terms, as we dont know
1210 * at this point what type they need to have.
1214 return config_term_common(attr, term, err);
1217 static int config_term_tracepoint(struct perf_event_attr *attr,
1218 struct parse_events_term *term,
1219 struct parse_events_error *err)
1221 switch (term->type_term) {
1222 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1223 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1224 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1225 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1226 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1227 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1228 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1229 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1230 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1231 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1232 return config_term_common(attr, term, err);
1235 parse_events__handle_error(err, term->err_term,
1236 strdup("unknown term"),
1237 strdup("valid terms: call-graph,stack-size\n"));
1245 static int config_attr(struct perf_event_attr *attr,
1246 struct list_head *head,
1247 struct parse_events_error *err,
1248 config_term_func_t config_term)
1250 struct parse_events_term *term;
1252 list_for_each_entry(term, head, list)
1253 if (config_term(attr, term, err))
1259 static int get_config_terms(struct list_head *head_config,
1260 struct list_head *head_terms __maybe_unused)
1262 #define ADD_CONFIG_TERM(__type, __weak) \
1263 struct evsel_config_term *__t; \
1265 __t = zalloc(sizeof(*__t)); \
1269 INIT_LIST_HEAD(&__t->list); \
1270 __t->type = EVSEL__CONFIG_TERM_ ## __type; \
1271 __t->weak = __weak; \
1272 list_add_tail(&__t->list, head_terms)
1274 #define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak) \
1276 ADD_CONFIG_TERM(__type, __weak); \
1277 __t->val.__name = __val; \
1280 #define ADD_CONFIG_TERM_STR(__type, __val, __weak) \
1282 ADD_CONFIG_TERM(__type, __weak); \
1283 __t->val.str = strdup(__val); \
1284 if (!__t->val.str) { \
1288 __t->free_str = true; \
1291 struct parse_events_term *term;
1293 list_for_each_entry(term, head_config, list) {
1294 switch (term->type_term) {
1295 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1296 ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak);
1298 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1299 ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak);
1301 case PARSE_EVENTS__TERM_TYPE_TIME:
1302 ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak);
1304 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1305 ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak);
1307 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1308 ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak);
1310 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1311 ADD_CONFIG_TERM_VAL(STACK_USER, stack_user,
1312 term->val.num, term->weak);
1314 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1315 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1316 term->val.num ? 1 : 0, term->weak);
1318 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1319 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1320 term->val.num ? 0 : 1, term->weak);
1322 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1323 ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack,
1324 term->val.num, term->weak);
1326 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1327 ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events,
1328 term->val.num, term->weak);
1330 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1331 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1332 term->val.num ? 1 : 0, term->weak);
1334 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1335 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1336 term->val.num ? 0 : 1, term->weak);
1338 case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
1339 ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak);
1341 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1342 ADD_CONFIG_TERM_VAL(PERCORE, percore,
1343 term->val.num ? true : false, term->weak);
1345 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1346 ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output,
1347 term->val.num ? 1 : 0, term->weak);
1349 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1350 ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size,
1351 term->val.num, term->weak);
1361 * Add EVSEL__CONFIG_TERM_CFG_CHG where cfg_chg will have a bit set for
1362 * each bit of attr->config that the user has changed.
1364 static int get_config_chgs(struct perf_pmu *pmu, struct list_head *head_config,
1365 struct list_head *head_terms)
1367 struct parse_events_term *term;
1371 list_for_each_entry(term, head_config, list) {
1372 switch (term->type_term) {
1373 case PARSE_EVENTS__TERM_TYPE_USER:
1374 type = perf_pmu__format_type(&pmu->format, term->config);
1375 if (type != PERF_PMU_FORMAT_VALUE_CONFIG)
1377 bits |= perf_pmu__format_bits(&pmu->format, term->config);
1379 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1388 ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false);
1390 #undef ADD_CONFIG_TERM
1394 int parse_events_add_tracepoint(struct list_head *list, int *idx,
1395 const char *sys, const char *event,
1396 struct parse_events_error *err,
1397 struct list_head *head_config)
1400 struct perf_event_attr attr;
1402 if (config_attr(&attr, head_config, err,
1403 config_term_tracepoint))
1407 if (strpbrk(sys, "*?"))
1408 return add_tracepoint_multi_sys(list, idx, sys, event,
1411 return add_tracepoint_event(list, idx, sys, event,
1415 int parse_events_add_numeric(struct parse_events_state *parse_state,
1416 struct list_head *list,
1417 u32 type, u64 config,
1418 struct list_head *head_config)
1420 struct perf_event_attr attr;
1421 LIST_HEAD(config_terms);
1423 memset(&attr, 0, sizeof(attr));
1425 attr.config = config;
1428 if (config_attr(&attr, head_config, parse_state->error,
1429 config_term_common))
1432 if (get_config_terms(head_config, &config_terms))
1436 return add_event(list, &parse_state->idx, &attr,
1437 get_config_name(head_config), &config_terms);
1440 int parse_events_add_tool(struct parse_events_state *parse_state,
1441 struct list_head *list,
1442 enum perf_tool_event tool_event)
1444 return add_event_tool(list, &parse_state->idx, tool_event);
1447 static bool config_term_percore(struct list_head *config_terms)
1449 struct evsel_config_term *term;
1451 list_for_each_entry(term, config_terms, list) {
1452 if (term->type == EVSEL__CONFIG_TERM_PERCORE)
1453 return term->val.percore;
1459 int parse_events_add_pmu(struct parse_events_state *parse_state,
1460 struct list_head *list, char *name,
1461 struct list_head *head_config,
1462 bool auto_merge_stats,
1465 struct perf_event_attr attr;
1466 struct perf_pmu_info info;
1467 struct perf_pmu *pmu;
1468 struct evsel *evsel;
1469 struct parse_events_error *err = parse_state->error;
1470 bool use_uncore_alias;
1471 LIST_HEAD(config_terms);
1474 fprintf(stderr, "Attempting to add event pmu '%s' with '",
1477 struct parse_events_term *term;
1479 list_for_each_entry(term, head_config, list) {
1480 fprintf(stderr, "%s,", term->config);
1483 fprintf(stderr, "' that may result in non-fatal errors\n");
1486 pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
1490 if (asprintf(&err_str,
1491 "Cannot find PMU `%s'. Missing kernel support?",
1493 parse_events__handle_error(err, 0, err_str, NULL);
1497 if (pmu->default_config) {
1498 memcpy(&attr, pmu->default_config,
1499 sizeof(struct perf_event_attr));
1501 memset(&attr, 0, sizeof(attr));
1504 use_uncore_alias = (pmu->is_uncore && use_alias);
1507 attr.type = pmu->type;
1508 evsel = __add_event(list, &parse_state->idx, &attr, true, NULL,
1509 pmu, NULL, auto_merge_stats, NULL);
1511 evsel->pmu_name = name ? strdup(name) : NULL;
1512 evsel->use_uncore_alias = use_uncore_alias;
1519 if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &info))
1523 fprintf(stderr, "After aliases, add event pmu '%s' with '",
1526 struct parse_events_term *term;
1528 list_for_each_entry(term, head_config, list) {
1529 fprintf(stderr, "%s,", term->config);
1532 fprintf(stderr, "' that may result in non-fatal errors\n");
1536 * Configure hardcoded terms first, no need to check
1537 * return value when called with fail == 0 ;)
1539 if (config_attr(&attr, head_config, parse_state->error, config_term_pmu))
1542 if (get_config_terms(head_config, &config_terms))
1546 * When using default config, record which bits of attr->config were
1547 * changed by the user.
1549 if (pmu->default_config && get_config_chgs(pmu, head_config, &config_terms))
1552 if (!parse_state->fake_pmu && perf_pmu__config(pmu, &attr, head_config, parse_state->error)) {
1553 struct evsel_config_term *pos, *tmp;
1555 list_for_each_entry_safe(pos, tmp, &config_terms, list) {
1556 list_del_init(&pos->list);
1558 zfree(&pos->val.str);
1564 evsel = __add_event(list, &parse_state->idx, &attr, true,
1565 get_config_name(head_config), pmu,
1566 &config_terms, auto_merge_stats, NULL);
1570 evsel->pmu_name = name ? strdup(name) : NULL;
1571 evsel->use_uncore_alias = use_uncore_alias;
1572 evsel->percore = config_term_percore(&evsel->config_terms);
1574 if (parse_state->fake_pmu)
1577 evsel->unit = info.unit;
1578 evsel->scale = info.scale;
1579 evsel->per_pkg = info.per_pkg;
1580 evsel->snapshot = info.snapshot;
1581 evsel->metric_expr = info.metric_expr;
1582 evsel->metric_name = info.metric_name;
1586 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
1587 char *str, struct list_head **listp)
1589 struct parse_events_term *term;
1590 struct list_head *list;
1591 struct perf_pmu *pmu = NULL;
1595 /* Add it for all PMUs that support the alias */
1596 list = malloc(sizeof(struct list_head));
1599 INIT_LIST_HEAD(list);
1600 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
1601 struct perf_pmu_alias *alias;
1603 list_for_each_entry(alias, &pmu->aliases, list) {
1604 if (!strcasecmp(alias->name, str)) {
1605 struct list_head *head;
1608 head = malloc(sizeof(struct list_head));
1611 INIT_LIST_HEAD(head);
1612 config = strdup(str);
1615 if (parse_events_term__num(&term,
1616 PARSE_EVENTS__TERM_TYPE_USER,
1617 config, 1, false, &config,
1623 list_add_tail(&term->list, head);
1625 if (!parse_events_add_pmu(parse_state, list,
1628 pr_debug("%s -> %s/%s/\n", str,
1629 pmu->name, alias->str);
1633 parse_events_terms__delete(head);
1645 int parse_events__modifier_group(struct list_head *list,
1648 return parse_events__modifier_event(list, event_mod, true);
1652 * Check if the two uncore PMUs are from the same uncore block
1653 * The format of the uncore PMU name is uncore_#blockname_#pmuidx
1655 static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b)
1657 char *end_a, *end_b;
1659 end_a = strrchr(pmu_name_a, '_');
1660 end_b = strrchr(pmu_name_b, '_');
1662 if (!end_a || !end_b)
1665 if ((end_a - pmu_name_a) != (end_b - pmu_name_b))
1668 return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0);
1672 parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
1673 struct parse_events_state *parse_state)
1675 struct evsel *evsel, *leader;
1677 bool is_leader = true;
1678 int i, nr_pmu = 0, total_members, ret = 0;
1680 leader = list_first_entry(list, struct evsel, core.node);
1681 evsel = list_last_entry(list, struct evsel, core.node);
1682 total_members = evsel->idx - leader->idx + 1;
1684 leaders = calloc(total_members, sizeof(uintptr_t));
1685 if (WARN_ON(!leaders))
1689 * Going through the whole group and doing sanity check.
1690 * All members must use alias, and be from the same uncore block.
1691 * Also, storing the leader events in an array.
1693 __evlist__for_each_entry(list, evsel) {
1695 /* Only split the uncore group which members use alias */
1696 if (!evsel->use_uncore_alias)
1699 /* The events must be from the same uncore block */
1700 if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name))
1706 * If the event's PMU name starts to repeat, it must be a new
1707 * event. That can be used to distinguish the leader from
1708 * other members, even they have the same event name.
1710 if ((leader != evsel) &&
1711 !strcmp(leader->pmu_name, evsel->pmu_name)) {
1716 /* Store the leader event for each PMU */
1717 leaders[nr_pmu++] = (uintptr_t) evsel;
1720 /* only one event alias */
1721 if (nr_pmu == total_members) {
1722 parse_state->nr_groups--;
1727 * An uncore event alias is a joint name which means the same event
1728 * runs on all PMUs of a block.
1729 * Perf doesn't support mixed events from different PMUs in the same
1730 * group. The big group has to be split into multiple small groups
1731 * which only include the events from the same PMU.
1733 * Here the uncore event aliases must be from the same uncore block.
1734 * The number of PMUs must be same for each alias. The number of new
1735 * small groups equals to the number of PMUs.
1736 * Setting the leader event for corresponding members in each group.
1739 __evlist__for_each_entry(list, evsel) {
1742 evsel->leader = (struct evsel *) leaders[i++];
1745 /* The number of members and group name are same for each group */
1746 for (i = 0; i < nr_pmu; i++) {
1747 evsel = (struct evsel *) leaders[i];
1748 evsel->core.nr_members = total_members / nr_pmu;
1749 evsel->group_name = name ? strdup(name) : NULL;
1752 /* Take the new small groups into account */
1753 parse_state->nr_groups += nr_pmu - 1;
1762 void parse_events__set_leader(char *name, struct list_head *list,
1763 struct parse_events_state *parse_state)
1765 struct evsel *leader;
1767 if (list_empty(list)) {
1768 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1772 if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state))
1775 __evlist__set_leader(list);
1776 leader = list_entry(list->next, struct evsel, core.node);
1777 leader->group_name = name ? strdup(name) : NULL;
1780 /* list_event is assumed to point to malloc'ed memory */
1781 void parse_events_update_lists(struct list_head *list_event,
1782 struct list_head *list_all)
1785 * Called for single event definition. Update the
1786 * 'all event' list, and reinit the 'single event'
1787 * list, for next event definition.
1789 list_splice_tail(list_event, list_all);
1793 struct event_modifier {
1809 static int get_event_modifier(struct event_modifier *mod, char *str,
1810 struct evsel *evsel)
1812 int eu = evsel ? evsel->core.attr.exclude_user : 0;
1813 int ek = evsel ? evsel->core.attr.exclude_kernel : 0;
1814 int eh = evsel ? evsel->core.attr.exclude_hv : 0;
1815 int eH = evsel ? evsel->core.attr.exclude_host : 0;
1816 int eG = evsel ? evsel->core.attr.exclude_guest : 0;
1817 int eI = evsel ? evsel->core.attr.exclude_idle : 0;
1818 int precise = evsel ? evsel->core.attr.precise_ip : 0;
1819 int precise_max = 0;
1820 int sample_read = 0;
1821 int pinned = evsel ? evsel->core.attr.pinned : 0;
1822 int exclusive = evsel ? evsel->core.attr.exclusive : 0;
1824 int exclude = eu | ek | eh;
1825 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1828 memset(mod, 0, sizeof(*mod));
1833 exclude = eu = ek = eh = 1;
1834 if (!exclude_GH && !perf_guest)
1837 } else if (*str == 'k') {
1839 exclude = eu = ek = eh = 1;
1841 } else if (*str == 'h') {
1843 exclude = eu = ek = eh = 1;
1845 } else if (*str == 'G') {
1847 exclude_GH = eG = eH = 1;
1849 } else if (*str == 'H') {
1851 exclude_GH = eG = eH = 1;
1853 } else if (*str == 'I') {
1855 } else if (*str == 'p') {
1857 /* use of precise requires exclude_guest */
1860 } else if (*str == 'P') {
1862 } else if (*str == 'S') {
1864 } else if (*str == 'D') {
1866 } else if (*str == 'e') {
1868 } else if (*str == 'W') {
1879 * 0 - SAMPLE_IP can have arbitrary skid
1880 * 1 - SAMPLE_IP must have constant skid
1881 * 2 - SAMPLE_IP requested to have 0 skid
1882 * 3 - SAMPLE_IP must have 0 skid
1884 * See also PERF_RECORD_MISC_EXACT_IP
1895 mod->precise = precise;
1896 mod->precise_max = precise_max;
1897 mod->exclude_GH = exclude_GH;
1898 mod->sample_read = sample_read;
1899 mod->pinned = pinned;
1901 mod->exclusive = exclusive;
1907 * Basic modifier sanity check to validate it contains only one
1908 * instance of any modifier (apart from 'p') present.
1910 static int check_modifier(char *str)
1914 /* The sizeof includes 0 byte as well. */
1915 if (strlen(str) > (sizeof("ukhGHpppPSDIWe") - 1))
1919 if (*p != 'p' && strchr(p + 1, *p))
1927 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
1929 struct evsel *evsel;
1930 struct event_modifier mod;
1935 if (check_modifier(str))
1938 if (!add && get_event_modifier(&mod, str, NULL))
1941 __evlist__for_each_entry(list, evsel) {
1942 if (add && get_event_modifier(&mod, str, evsel))
1945 evsel->core.attr.exclude_user = mod.eu;
1946 evsel->core.attr.exclude_kernel = mod.ek;
1947 evsel->core.attr.exclude_hv = mod.eh;
1948 evsel->core.attr.precise_ip = mod.precise;
1949 evsel->core.attr.exclude_host = mod.eH;
1950 evsel->core.attr.exclude_guest = mod.eG;
1951 evsel->core.attr.exclude_idle = mod.eI;
1952 evsel->exclude_GH = mod.exclude_GH;
1953 evsel->sample_read = mod.sample_read;
1954 evsel->precise_max = mod.precise_max;
1955 evsel->weak_group = mod.weak;
1957 if (evsel__is_group_leader(evsel)) {
1958 evsel->core.attr.pinned = mod.pinned;
1959 evsel->core.attr.exclusive = mod.exclusive;
1966 int parse_events_name(struct list_head *list, char *name)
1968 struct evsel *evsel;
1970 __evlist__for_each_entry(list, evsel) {
1972 evsel->name = strdup(name);
1979 comp_pmu(const void *p1, const void *p2)
1981 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
1982 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
1984 return strcasecmp(pmu1->symbol, pmu2->symbol);
1987 static void perf_pmu__parse_cleanup(void)
1989 if (perf_pmu_events_list_num > 0) {
1990 struct perf_pmu_event_symbol *p;
1993 for (i = 0; i < perf_pmu_events_list_num; i++) {
1994 p = perf_pmu_events_list + i;
1997 zfree(&perf_pmu_events_list);
1998 perf_pmu_events_list_num = 0;
2002 #define SET_SYMBOL(str, stype) \
2011 * Read the pmu events list from sysfs
2012 * Save it into perf_pmu_events_list
2014 static void perf_pmu__parse_init(void)
2017 struct perf_pmu *pmu = NULL;
2018 struct perf_pmu_alias *alias;
2022 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2023 list_for_each_entry(alias, &pmu->aliases, list) {
2024 if (strchr(alias->name, '-'))
2031 perf_pmu_events_list_num = -1;
2034 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
2035 if (!perf_pmu_events_list)
2037 perf_pmu_events_list_num = len;
2041 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2042 list_for_each_entry(alias, &pmu->aliases, list) {
2043 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
2044 char *tmp = strchr(alias->name, '-');
2047 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2048 PMU_EVENT_SYMBOL_PREFIX);
2050 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
2053 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
2058 qsort(perf_pmu_events_list, len,
2059 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2063 perf_pmu__parse_cleanup();
2067 * This function injects special term in
2068 * perf_pmu_events_list so the test code
2069 * can check on this functionality.
2071 int perf_pmu__test_parse_init(void)
2073 struct perf_pmu_event_symbol *list;
2075 list = malloc(sizeof(*list) * 1);
2079 list->type = PMU_EVENT_SYMBOL;
2080 list->symbol = strdup("read");
2082 if (!list->symbol) {
2087 perf_pmu_events_list = list;
2088 perf_pmu_events_list_num = 1;
2092 enum perf_pmu_event_symbol_type
2093 perf_pmu__parse_check(const char *name)
2095 struct perf_pmu_event_symbol p, *r;
2097 /* scan kernel pmu events from sysfs if needed */
2098 if (perf_pmu_events_list_num == 0)
2099 perf_pmu__parse_init();
2101 * name "cpu" could be prefix of cpu-cycles or cpu// events.
2102 * cpu-cycles has been handled by hardcode.
2103 * So it must be cpu// events, not kernel pmu event.
2105 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
2106 return PMU_EVENT_SYMBOL_ERR;
2108 p.symbol = strdup(name);
2109 r = bsearch(&p, perf_pmu_events_list,
2110 (size_t) perf_pmu_events_list_num,
2111 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2113 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
2116 static int parse_events__scanner(const char *str,
2117 struct parse_events_state *parse_state)
2119 YY_BUFFER_STATE buffer;
2123 ret = parse_events_lex_init_extra(parse_state, &scanner);
2127 buffer = parse_events__scan_string(str, scanner);
2130 parse_events_debug = 1;
2131 parse_events_set_debug(1, scanner);
2133 ret = parse_events_parse(parse_state, scanner);
2135 parse_events__flush_buffer(buffer, scanner);
2136 parse_events__delete_buffer(buffer, scanner);
2137 parse_events_lex_destroy(scanner);
2142 * parse event config string, return a list of event terms.
2144 int parse_events_terms(struct list_head *terms, const char *str)
2146 struct parse_events_state parse_state = {
2148 .stoken = PE_START_TERMS,
2152 ret = parse_events__scanner(str, &parse_state);
2153 perf_pmu__parse_cleanup();
2156 list_splice(parse_state.terms, terms);
2157 zfree(&parse_state.terms);
2161 parse_events_terms__delete(parse_state.terms);
2165 int __parse_events(struct evlist *evlist, const char *str,
2166 struct parse_events_error *err, struct perf_pmu *fake_pmu)
2168 struct parse_events_state parse_state = {
2169 .list = LIST_HEAD_INIT(parse_state.list),
2170 .idx = evlist->core.nr_entries,
2173 .stoken = PE_START_EVENTS,
2174 .fake_pmu = fake_pmu,
2178 ret = parse_events__scanner(str, &parse_state);
2179 perf_pmu__parse_cleanup();
2181 if (!ret && list_empty(&parse_state.list)) {
2182 WARN_ONCE(true, "WARNING: event parser found nothing\n");
2187 * Add list to the evlist even with errors to allow callers to clean up.
2189 evlist__splice_list_tail(evlist, &parse_state.list);
2194 evlist->nr_groups += parse_state.nr_groups;
2195 last = evlist__last(evlist);
2196 last->cmdline_group_boundary = true;
2202 * There are 2 users - builtin-record and builtin-test objects.
2203 * Both call evlist__delete in case of error, so we dont
2209 #define MAX_WIDTH 1000
2210 static int get_term_width(void)
2214 get_term_dimensions(&ws);
2215 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
2218 static void __parse_events_print_error(int err_idx, const char *err_str,
2219 const char *err_help, const char *event)
2221 const char *str = "invalid or unsupported event: ";
2222 char _buf[MAX_WIDTH];
2223 char *buf = (char *) event;
2226 /* -2 for extra '' in the final fprintf */
2227 int width = get_term_width() - 2;
2228 int len_event = strlen(event);
2229 int len_str, max_len, cut = 0;
2232 * Maximum error index indent, we will cut
2233 * the event string if it's bigger.
2235 int max_err_idx = 13;
2238 * Let's be specific with the message when
2239 * we have the precise error.
2241 str = "event syntax error: ";
2242 len_str = strlen(str);
2243 max_len = width - len_str;
2247 /* We're cutting from the beginning. */
2248 if (err_idx > max_err_idx)
2249 cut = err_idx - max_err_idx;
2251 strncpy(buf, event + cut, max_len);
2253 /* Mark cut parts with '..' on both sides. */
2255 buf[0] = buf[1] = '.';
2257 if ((len_event - cut) > max_len) {
2258 buf[max_len - 1] = buf[max_len - 2] = '.';
2262 idx = len_str + err_idx - cut;
2265 fprintf(stderr, "%s'%s'\n", str, buf);
2267 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str);
2269 fprintf(stderr, "\n%s\n", err_help);
2273 void parse_events_print_error(struct parse_events_error *err,
2276 if (!err->num_errors)
2279 __parse_events_print_error(err->idx, err->str, err->help, event);
2283 if (err->num_errors > 1) {
2284 fputs("\nInitial error:\n", stderr);
2285 __parse_events_print_error(err->first_idx, err->first_str,
2286 err->first_help, event);
2287 zfree(&err->first_str);
2288 zfree(&err->first_help);
2294 int parse_events_option(const struct option *opt, const char *str,
2295 int unset __maybe_unused)
2297 struct evlist *evlist = *(struct evlist **)opt->value;
2298 struct parse_events_error err;
2301 bzero(&err, sizeof(err));
2302 ret = parse_events(evlist, str, &err);
2305 parse_events_print_error(&err, str);
2306 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
2312 int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset)
2314 struct evlist **evlistp = opt->value;
2317 if (*evlistp == NULL) {
2318 *evlistp = evlist__new();
2320 if (*evlistp == NULL) {
2321 fprintf(stderr, "Not enough memory to create evlist\n");
2326 ret = parse_events_option(opt, str, unset);
2328 evlist__delete(*evlistp);
2336 foreach_evsel_in_last_glob(struct evlist *evlist,
2337 int (*func)(struct evsel *evsel,
2341 struct evsel *last = NULL;
2345 * Don't return when list_empty, give func a chance to report
2346 * error when it found last == NULL.
2348 * So no need to WARN here, let *func do this.
2350 if (evlist->core.nr_entries > 0)
2351 last = evlist__last(evlist);
2354 err = (*func)(last, arg);
2360 if (last->core.node.prev == &evlist->core.entries)
2362 last = list_entry(last->core.node.prev, struct evsel, core.node);
2363 } while (!last->cmdline_group_boundary);
2368 static int set_filter(struct evsel *evsel, const void *arg)
2370 const char *str = arg;
2372 int nr_addr_filters = 0;
2373 struct perf_pmu *pmu = NULL;
2375 if (evsel == NULL) {
2377 "--filter option should follow a -e tracepoint or HW tracer option\n");
2381 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {
2382 if (evsel__append_tp_filter(evsel, str) < 0) {
2384 "not enough memory to hold filter string\n");
2391 while ((pmu = perf_pmu__scan(pmu)) != NULL)
2392 if (pmu->type == evsel->core.attr.type) {
2398 perf_pmu__scan_file(pmu, "nr_addr_filters",
2399 "%d", &nr_addr_filters);
2401 if (!nr_addr_filters) {
2403 "This CPU does not support address filtering\n");
2407 if (evsel__append_addr_filter(evsel, str) < 0) {
2409 "not enough memory to hold filter string\n");
2416 int parse_filter(const struct option *opt, const char *str,
2417 int unset __maybe_unused)
2419 struct evlist *evlist = *(struct evlist **)opt->value;
2421 return foreach_evsel_in_last_glob(evlist, set_filter,
2425 static int add_exclude_perf_filter(struct evsel *evsel,
2426 const void *arg __maybe_unused)
2428 char new_filter[64];
2430 if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
2432 "--exclude-perf option should follow a -e tracepoint option\n");
2436 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
2438 if (evsel__append_tp_filter(evsel, new_filter) < 0) {
2440 "not enough memory to hold filter string\n");
2447 int exclude_perf(const struct option *opt,
2448 const char *arg __maybe_unused,
2449 int unset __maybe_unused)
2451 struct evlist *evlist = *(struct evlist **)opt->value;
2453 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
2457 static const char * const event_type_descriptors[] = {
2461 "Hardware cache event",
2462 "Raw hardware event descriptor",
2463 "Hardware breakpoint",
2466 static int cmp_string(const void *a, const void *b)
2468 const char * const *as = a;
2469 const char * const *bs = b;
2471 return strcmp(*as, *bs);
2475 * Print the events from <debugfs_mount_point>/tracing/events
2478 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
2481 DIR *sys_dir, *evt_dir;
2482 struct dirent *sys_dirent, *evt_dirent;
2483 char evt_path[MAXPATHLEN];
2485 char **evt_list = NULL;
2486 unsigned int evt_i = 0, evt_num = 0;
2487 bool evt_num_known = false;
2490 sys_dir = tracing_events__opendir();
2494 if (evt_num_known) {
2495 evt_list = zalloc(sizeof(char *) * evt_num);
2497 goto out_close_sys_dir;
2500 for_each_subsystem(sys_dir, sys_dirent) {
2501 if (subsys_glob != NULL &&
2502 !strglobmatch(sys_dirent->d_name, subsys_glob))
2505 dir_path = get_events_file(sys_dirent->d_name);
2508 evt_dir = opendir(dir_path);
2512 for_each_event(dir_path, evt_dir, evt_dirent) {
2513 if (event_glob != NULL &&
2514 !strglobmatch(evt_dirent->d_name, event_glob))
2517 if (!evt_num_known) {
2522 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2523 sys_dirent->d_name, evt_dirent->d_name);
2525 evt_list[evt_i] = strdup(evt_path);
2526 if (evt_list[evt_i] == NULL) {
2527 put_events_file(dir_path);
2528 goto out_close_evt_dir;
2534 put_events_file(dir_path);
2538 if (!evt_num_known) {
2539 evt_num_known = true;
2542 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
2544 while (evt_i < evt_num) {
2546 printf("%s ", evt_list[evt_i++]);
2549 printf(" %-50s [%s]\n", evt_list[evt_i++],
2550 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2552 if (evt_num && pager_in_use())
2557 for (evt_i = 0; evt_i < evt_num; evt_i++)
2558 zfree(&evt_list[evt_i]);
2567 printf("FATAL: not enough memory to print %s\n",
2568 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2574 * Check whether event is in <debugfs_mount_point>/tracing/events
2577 int is_valid_tracepoint(const char *event_string)
2579 DIR *sys_dir, *evt_dir;
2580 struct dirent *sys_dirent, *evt_dirent;
2581 char evt_path[MAXPATHLEN];
2584 sys_dir = tracing_events__opendir();
2588 for_each_subsystem(sys_dir, sys_dirent) {
2589 dir_path = get_events_file(sys_dirent->d_name);
2592 evt_dir = opendir(dir_path);
2596 for_each_event(dir_path, evt_dir, evt_dirent) {
2597 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2598 sys_dirent->d_name, evt_dirent->d_name);
2599 if (!strcmp(evt_path, event_string)) {
2607 put_events_file(dir_path);
2613 static bool is_event_supported(u8 type, unsigned config)
2617 struct evsel *evsel;
2618 struct perf_event_attr attr = {
2623 struct perf_thread_map *tmap = thread_map__new_by_tid(0);
2628 evsel = evsel__new(&attr);
2630 open_return = evsel__open(evsel, NULL, tmap);
2631 ret = open_return >= 0;
2633 if (open_return == -EACCES) {
2635 * This happens if the paranoid value
2636 * /proc/sys/kernel/perf_event_paranoid is set to 2
2637 * Re-run with exclude_kernel set; we don't do that
2638 * by default as some ARM machines do not support it.
2641 evsel->core.attr.exclude_kernel = 1;
2642 ret = evsel__open(evsel, NULL, tmap) >= 0;
2644 evsel__delete(evsel);
2647 perf_thread_map__put(tmap);
2651 void print_sdt_events(const char *subsys_glob, const char *event_glob,
2654 struct probe_cache *pcache;
2655 struct probe_cache_entry *ent;
2656 struct strlist *bidlist, *sdtlist;
2657 struct strlist_config cfg = {.dont_dupstr = true};
2658 struct str_node *nd, *nd2;
2659 char *buf, *path, *ptr = NULL;
2660 bool show_detail = false;
2663 sdtlist = strlist__new(NULL, &cfg);
2665 pr_debug("Failed to allocate new strlist for SDT\n");
2668 bidlist = build_id_cache__list_all(true);
2670 pr_debug("Failed to get buildids: %d\n", errno);
2673 strlist__for_each_entry(nd, bidlist) {
2674 pcache = probe_cache__new(nd->s, NULL);
2677 list_for_each_entry(ent, &pcache->entries, node) {
2681 !strglobmatch(ent->pev.group, subsys_glob))
2684 !strglobmatch(ent->pev.event, event_glob))
2686 ret = asprintf(&buf, "%s:%s@%s", ent->pev.group,
2687 ent->pev.event, nd->s);
2689 strlist__add(sdtlist, buf);
2691 probe_cache__delete(pcache);
2693 strlist__delete(bidlist);
2695 strlist__for_each_entry(nd, sdtlist) {
2696 buf = strchr(nd->s, '@');
2700 printf("%s ", nd->s);
2703 nd2 = strlist__next(nd);
2705 ptr = strchr(nd2->s, '@');
2708 if (strcmp(nd->s, nd2->s) == 0)
2712 path = build_id_cache__origname(buf);
2713 ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf);
2715 printf(" %-50s [%s]\n", buf, "SDT event");
2720 printf(" %-50s [%s]\n", nd->s, "SDT event");
2722 if (strcmp(nd->s, nd2->s) != 0)
2723 show_detail = false;
2728 strlist__delete(sdtlist);
2731 int print_hwcache_events(const char *event_glob, bool name_only)
2733 unsigned int type, op, i, evt_i = 0, evt_num = 0;
2735 char **evt_list = NULL;
2736 bool evt_num_known = false;
2739 if (evt_num_known) {
2740 evt_list = zalloc(sizeof(char *) * evt_num);
2745 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
2746 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
2747 /* skip invalid cache type */
2748 if (!evsel__is_cache_op_valid(type, op))
2751 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
2752 __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
2753 if (event_glob != NULL && !strglobmatch(name, event_glob))
2756 if (!is_event_supported(PERF_TYPE_HW_CACHE,
2757 type | (op << 8) | (i << 16)))
2760 if (!evt_num_known) {
2765 evt_list[evt_i] = strdup(name);
2766 if (evt_list[evt_i] == NULL)
2773 if (!evt_num_known) {
2774 evt_num_known = true;
2777 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
2779 while (evt_i < evt_num) {
2781 printf("%s ", evt_list[evt_i++]);
2784 printf(" %-50s [%s]\n", evt_list[evt_i++],
2785 event_type_descriptors[PERF_TYPE_HW_CACHE]);
2787 if (evt_num && pager_in_use())
2792 for (evt_i = 0; evt_i < evt_num; evt_i++)
2793 zfree(&evt_list[evt_i]);
2798 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
2804 static void print_tool_event(const char *name, const char *event_glob,
2807 if (event_glob && !strglobmatch(name, event_glob))
2810 printf("%s ", name);
2812 printf(" %-50s [%s]\n", name, "Tool event");
2816 void print_tool_events(const char *event_glob, bool name_only)
2818 print_tool_event("duration_time", event_glob, name_only);
2823 void print_symbol_events(const char *event_glob, unsigned type,
2824 struct event_symbol *syms, unsigned max,
2827 unsigned int i, evt_i = 0, evt_num = 0;
2828 char name[MAX_NAME_LEN];
2829 char **evt_list = NULL;
2830 bool evt_num_known = false;
2833 if (evt_num_known) {
2834 evt_list = zalloc(sizeof(char *) * evt_num);
2840 for (i = 0; i < max; i++, syms++) {
2842 if (event_glob != NULL && syms->symbol != NULL &&
2843 !(strglobmatch(syms->symbol, event_glob) ||
2844 (syms->alias && strglobmatch(syms->alias, event_glob))))
2847 if (!is_event_supported(type, i))
2850 if (!evt_num_known) {
2855 if (!name_only && strlen(syms->alias))
2856 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
2858 strlcpy(name, syms->symbol, MAX_NAME_LEN);
2860 evt_list[evt_i] = strdup(name);
2861 if (evt_list[evt_i] == NULL)
2866 if (!evt_num_known) {
2867 evt_num_known = true;
2870 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
2872 while (evt_i < evt_num) {
2874 printf("%s ", evt_list[evt_i++]);
2877 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
2879 if (evt_num && pager_in_use())
2884 for (evt_i = 0; evt_i < evt_num; evt_i++)
2885 zfree(&evt_list[evt_i]);
2890 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
2896 * Print the help text for the event symbols:
2898 void print_events(const char *event_glob, bool name_only, bool quiet_flag,
2899 bool long_desc, bool details_flag, bool deprecated)
2901 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
2902 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
2904 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
2905 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
2906 print_tool_events(event_glob, name_only);
2908 print_hwcache_events(event_glob, name_only);
2910 print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
2911 details_flag, deprecated);
2913 if (event_glob != NULL)
2917 printf(" %-50s [%s]\n",
2919 event_type_descriptors[PERF_TYPE_RAW]);
2920 printf(" %-50s [%s]\n",
2921 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
2922 event_type_descriptors[PERF_TYPE_RAW]);
2924 printf(" (see 'man perf-list' on how to encode it)\n\n");
2926 printf(" %-50s [%s]\n",
2927 "mem:<addr>[/len][:access]",
2928 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
2933 print_tracepoint_events(NULL, NULL, name_only);
2935 print_sdt_events(NULL, NULL, name_only);
2937 metricgroup__print(true, true, NULL, name_only, details_flag);
2939 print_libpfm_events(name_only, long_desc);
2942 int parse_events__is_hardcoded_term(struct parse_events_term *term)
2944 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
2947 static int new_term(struct parse_events_term **_term,
2948 struct parse_events_term *temp,
2951 struct parse_events_term *term;
2953 term = malloc(sizeof(*term));
2958 INIT_LIST_HEAD(&term->list);
2961 switch (term->type_val) {
2962 case PARSE_EVENTS__TERM_TYPE_NUM:
2963 term->val.num = num;
2965 case PARSE_EVENTS__TERM_TYPE_STR:
2966 term->val.str = str;
2977 int parse_events_term__num(struct parse_events_term **term,
2978 int type_term, char *config, u64 num,
2980 void *loc_term_, void *loc_val_)
2982 YYLTYPE *loc_term = loc_term_;
2983 YYLTYPE *loc_val = loc_val_;
2985 struct parse_events_term temp = {
2986 .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
2987 .type_term = type_term,
2989 .no_value = no_value,
2990 .err_term = loc_term ? loc_term->first_column : 0,
2991 .err_val = loc_val ? loc_val->first_column : 0,
2994 return new_term(term, &temp, NULL, num);
2997 int parse_events_term__str(struct parse_events_term **term,
2998 int type_term, char *config, char *str,
2999 void *loc_term_, void *loc_val_)
3001 YYLTYPE *loc_term = loc_term_;
3002 YYLTYPE *loc_val = loc_val_;
3004 struct parse_events_term temp = {
3005 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3006 .type_term = type_term,
3008 .err_term = loc_term ? loc_term->first_column : 0,
3009 .err_val = loc_val ? loc_val->first_column : 0,
3012 return new_term(term, &temp, str, 0);
3015 int parse_events_term__sym_hw(struct parse_events_term **term,
3016 char *config, unsigned idx)
3018 struct event_symbol *sym;
3020 struct parse_events_term temp = {
3021 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3022 .type_term = PARSE_EVENTS__TERM_TYPE_USER,
3027 temp.config = strdup("event");
3031 BUG_ON(idx >= PERF_COUNT_HW_MAX);
3032 sym = &event_symbols_hw[idx];
3034 str = strdup(sym->symbol);
3037 return new_term(term, &temp, str, 0);
3040 int parse_events_term__clone(struct parse_events_term **new,
3041 struct parse_events_term *term)
3044 struct parse_events_term temp = {
3045 .type_val = term->type_val,
3046 .type_term = term->type_term,
3048 .err_term = term->err_term,
3049 .err_val = term->err_val,
3053 temp.config = strdup(term->config);
3057 if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
3058 return new_term(new, &temp, NULL, term->val.num);
3060 str = strdup(term->val.str);
3063 return new_term(new, &temp, str, 0);
3066 void parse_events_term__delete(struct parse_events_term *term)
3068 if (term->array.nr_ranges)
3069 zfree(&term->array.ranges);
3071 if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
3072 zfree(&term->val.str);
3074 zfree(&term->config);
3078 int parse_events_copy_term_list(struct list_head *old,
3079 struct list_head **new)
3081 struct parse_events_term *term, *n;
3089 *new = malloc(sizeof(struct list_head));
3092 INIT_LIST_HEAD(*new);
3094 list_for_each_entry (term, old, list) {
3095 ret = parse_events_term__clone(&n, term);
3098 list_add_tail(&n->list, *new);
3103 void parse_events_terms__purge(struct list_head *terms)
3105 struct parse_events_term *term, *h;
3107 list_for_each_entry_safe(term, h, terms, list) {
3108 list_del_init(&term->list);
3109 parse_events_term__delete(term);
3113 void parse_events_terms__delete(struct list_head *terms)
3117 parse_events_terms__purge(terms);
3121 void parse_events__clear_array(struct parse_events_array *a)
3126 void parse_events_evlist_error(struct parse_events_state *parse_state,
3127 int idx, const char *str)
3129 if (!parse_state->error)
3132 parse_events__handle_error(parse_state->error, idx, strdup(str), NULL);
3135 static void config_terms_list(char *buf, size_t buf_sz)
3141 for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) {
3142 const char *name = config_term_names[i];
3144 if (!config_term_avail(i, NULL))
3151 if (strlen(buf) + strlen(name) + 2 >= buf_sz)
3163 * Return string contains valid config terms of an event.
3164 * @additional_terms: For terms such as PMU sysfs terms.
3166 char *parse_events_formats_error_string(char *additional_terms)
3169 /* "no-overwrite" is the longest name */
3170 char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
3171 (sizeof("no-overwrite") - 1)];
3173 config_terms_list(static_terms, sizeof(static_terms));
3175 if (additional_terms) {
3176 if (asprintf(&str, "valid terms: %s,%s",
3177 additional_terms, static_terms) < 0)
3180 if (asprintf(&str, "valid terms: %s", static_terms) < 0)