1 #include "../../../include/linux/hw_breakpoint.h"
6 #include "parse-options.h"
7 #include "parse-events.h"
28 char debugfs_path[MAXPATHLEN];
30 #define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
31 #define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
33 static struct event_symbol event_symbols[] = {
34 { CHW(CPU_CYCLES), "cpu-cycles", "cycles" },
35 { CHW(STALLED_CYCLES_FRONTEND), "stalled-cycles-frontend", "idle-cycles-frontend" },
36 { CHW(STALLED_CYCLES_BACKEND), "stalled-cycles-backend", "idle-cycles-backend" },
37 { CHW(INSTRUCTIONS), "instructions", "" },
38 { CHW(CACHE_REFERENCES), "cache-references", "" },
39 { CHW(CACHE_MISSES), "cache-misses", "" },
40 { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" },
41 { CHW(BRANCH_MISSES), "branch-misses", "" },
42 { CHW(BUS_CYCLES), "bus-cycles", "" },
44 { CSW(CPU_CLOCK), "cpu-clock", "" },
45 { CSW(TASK_CLOCK), "task-clock", "" },
46 { CSW(PAGE_FAULTS), "page-faults", "faults" },
47 { CSW(PAGE_FAULTS_MIN), "minor-faults", "" },
48 { CSW(PAGE_FAULTS_MAJ), "major-faults", "" },
49 { CSW(CONTEXT_SWITCHES), "context-switches", "cs" },
50 { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" },
51 { CSW(ALIGNMENT_FAULTS), "alignment-faults", "" },
52 { CSW(EMULATION_FAULTS), "emulation-faults", "" },
55 #define __PERF_EVENT_FIELD(config, name) \
56 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
58 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
59 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
60 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
61 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
63 static const char *hw_event_names[PERF_COUNT_HW_MAX] = {
71 "stalled-cycles-frontend",
72 "stalled-cycles-backend",
75 static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
89 static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
90 { "L1-dcache", "l1-d", "l1d", "L1-data", },
91 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
93 { "dTLB", "d-tlb", "Data-TLB", },
94 { "iTLB", "i-tlb", "Instruction-TLB", },
95 { "branch", "branches", "bpu", "btb", "bpc", },
99 static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
100 { "load", "loads", "read", },
101 { "store", "stores", "write", },
102 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
105 static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
107 { "refs", "Reference", "ops", "access", },
108 { "misses", "miss", },
111 #define C(x) PERF_COUNT_HW_CACHE_##x
112 #define CACHE_READ (1 << C(OP_READ))
113 #define CACHE_WRITE (1 << C(OP_WRITE))
114 #define CACHE_PREFETCH (1 << C(OP_PREFETCH))
115 #define COP(x) (1 << x)
118 * cache operartion stat
119 * L1I : Read and prefetch only
120 * ITLB and BPU : Read-only
122 static unsigned long hw_cache_stat[C(MAX)] = {
123 [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
124 [C(L1I)] = (CACHE_READ | CACHE_PREFETCH),
125 [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
126 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
127 [C(ITLB)] = (CACHE_READ),
128 [C(BPU)] = (CACHE_READ),
129 [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
132 #define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
133 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
134 if (sys_dirent.d_type == DT_DIR && \
135 (strcmp(sys_dirent.d_name, ".")) && \
136 (strcmp(sys_dirent.d_name, "..")))
138 static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
140 char evt_path[MAXPATHLEN];
143 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
144 sys_dir->d_name, evt_dir->d_name);
145 fd = open(evt_path, O_RDONLY);
153 #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
154 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
155 if (evt_dirent.d_type == DT_DIR && \
156 (strcmp(evt_dirent.d_name, ".")) && \
157 (strcmp(evt_dirent.d_name, "..")) && \
158 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
160 #define MAX_EVENT_LENGTH 512
163 struct tracepoint_path *tracepoint_id_to_path(u64 config)
165 struct tracepoint_path *path = NULL;
166 DIR *sys_dir, *evt_dir;
167 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
171 char evt_path[MAXPATHLEN];
172 char dir_path[MAXPATHLEN];
174 if (debugfs_valid_mountpoint(debugfs_path))
177 sys_dir = opendir(debugfs_path);
181 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
183 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
185 evt_dir = opendir(dir_path);
189 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
191 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
193 fd = open(evt_path, O_RDONLY);
196 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
205 path = zalloc(sizeof(*path));
206 path->system = malloc(MAX_EVENT_LENGTH);
211 path->name = malloc(MAX_EVENT_LENGTH);
217 strncpy(path->system, sys_dirent.d_name,
219 strncpy(path->name, evt_dirent.d_name,
231 #define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
232 static const char *tracepoint_id_to_name(u64 config)
234 static char buf[TP_PATH_LEN];
235 struct tracepoint_path *path;
237 path = tracepoint_id_to_path(config);
239 snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
244 snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
249 static int is_cache_op_valid(u8 cache_type, u8 cache_op)
251 if (hw_cache_stat[cache_type] & COP(cache_op))
252 return 1; /* valid */
254 return 0; /* invalid */
257 static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
259 static char name[50];
262 sprintf(name, "%s-%s-%s", hw_cache[cache_type][0],
263 hw_cache_op[cache_op][0],
264 hw_cache_result[cache_result][0]);
266 sprintf(name, "%s-%s", hw_cache[cache_type][0],
267 hw_cache_op[cache_op][1]);
273 const char *event_type(int type)
276 case PERF_TYPE_HARDWARE:
279 case PERF_TYPE_SOFTWARE:
282 case PERF_TYPE_TRACEPOINT:
285 case PERF_TYPE_HW_CACHE:
286 return "hardware-cache";
295 const char *event_name(struct perf_evsel *evsel)
297 u64 config = evsel->attr.config;
298 int type = evsel->attr.type;
303 return __event_name(type, config);
306 const char *__event_name(int type, u64 config)
310 if (type == PERF_TYPE_RAW) {
311 sprintf(buf, "raw 0x%" PRIx64, config);
316 case PERF_TYPE_HARDWARE:
317 if (config < PERF_COUNT_HW_MAX && hw_event_names[config])
318 return hw_event_names[config];
319 return "unknown-hardware";
321 case PERF_TYPE_HW_CACHE: {
322 u8 cache_type, cache_op, cache_result;
324 cache_type = (config >> 0) & 0xff;
325 if (cache_type > PERF_COUNT_HW_CACHE_MAX)
326 return "unknown-ext-hardware-cache-type";
328 cache_op = (config >> 8) & 0xff;
329 if (cache_op > PERF_COUNT_HW_CACHE_OP_MAX)
330 return "unknown-ext-hardware-cache-op";
332 cache_result = (config >> 16) & 0xff;
333 if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX)
334 return "unknown-ext-hardware-cache-result";
336 if (!is_cache_op_valid(cache_type, cache_op))
337 return "invalid-cache";
339 return event_cache_name(cache_type, cache_op, cache_result);
342 case PERF_TYPE_SOFTWARE:
343 if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
344 return sw_event_names[config];
345 return "unknown-software";
347 case PERF_TYPE_TRACEPOINT:
348 return tracepoint_id_to_name(config);
357 static int parse_aliases(const char **str, const char *names[][MAX_ALIASES], int size)
362 for (i = 0; i < size; i++) {
363 for (j = 0; j < MAX_ALIASES && names[i][j]; j++) {
364 n = strlen(names[i][j]);
365 if (n > longest && !strncasecmp(*str, names[i][j], n))
377 static enum event_result
378 parse_generic_hw_event(const char **str, struct perf_event_attr *attr)
380 const char *s = *str;
381 int cache_type = -1, cache_op = -1, cache_result = -1;
383 cache_type = parse_aliases(&s, hw_cache, PERF_COUNT_HW_CACHE_MAX);
385 * No fallback - if we cannot get a clear cache type
388 if (cache_type == -1)
391 while ((cache_op == -1 || cache_result == -1) && *s == '-') {
394 if (cache_op == -1) {
395 cache_op = parse_aliases(&s, hw_cache_op,
396 PERF_COUNT_HW_CACHE_OP_MAX);
398 if (!is_cache_op_valid(cache_type, cache_op))
404 if (cache_result == -1) {
405 cache_result = parse_aliases(&s, hw_cache_result,
406 PERF_COUNT_HW_CACHE_RESULT_MAX);
407 if (cache_result >= 0)
412 * Can't parse this as a cache op or result, so back up
420 * Fall back to reads:
423 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
426 * Fall back to accesses:
428 if (cache_result == -1)
429 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
431 attr->config = cache_type | (cache_op << 8) | (cache_result << 16);
432 attr->type = PERF_TYPE_HW_CACHE;
438 static enum event_result
439 parse_single_tracepoint_event(char *sys_name,
440 const char *evt_name,
441 unsigned int evt_length,
442 struct perf_event_attr *attr,
445 char evt_path[MAXPATHLEN];
450 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
453 fd = open(evt_path, O_RDONLY);
457 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
465 attr->type = PERF_TYPE_TRACEPOINT;
466 *strp += strlen(sys_name) + evt_length + 1; /* + 1 for the ':' */
468 attr->sample_type |= PERF_SAMPLE_RAW;
469 attr->sample_type |= PERF_SAMPLE_TIME;
470 attr->sample_type |= PERF_SAMPLE_CPU;
472 attr->sample_period = 1;
478 /* sys + ':' + event + ':' + flags*/
479 #define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
480 static enum event_result
481 parse_multiple_tracepoint_event(struct perf_evlist *evlist, char *sys_name,
482 const char *evt_exp, char *flags)
484 char evt_path[MAXPATHLEN];
485 struct dirent *evt_ent;
488 snprintf(evt_path, MAXPATHLEN, "%s/%s", debugfs_path, sys_name);
489 evt_dir = opendir(evt_path);
492 perror("Can't open event dir");
496 while ((evt_ent = readdir(evt_dir))) {
497 char event_opt[MAX_EVOPT_LEN + 1];
500 if (!strcmp(evt_ent->d_name, ".")
501 || !strcmp(evt_ent->d_name, "..")
502 || !strcmp(evt_ent->d_name, "enable")
503 || !strcmp(evt_ent->d_name, "filter"))
506 if (!strglobmatch(evt_ent->d_name, evt_exp))
509 len = snprintf(event_opt, MAX_EVOPT_LEN, "%s:%s%s%s", sys_name,
510 evt_ent->d_name, flags ? ":" : "",
515 if (parse_events(evlist, event_opt, 0))
519 return EVT_HANDLED_ALL;
522 static enum event_result
523 parse_tracepoint_event(struct perf_evlist *evlist, const char **strp,
524 struct perf_event_attr *attr)
526 const char *evt_name;
527 char *flags = NULL, *comma_loc;
528 char sys_name[MAX_EVENT_LENGTH];
529 unsigned int sys_length, evt_length;
531 if (debugfs_valid_mountpoint(debugfs_path))
534 evt_name = strchr(*strp, ':');
538 sys_length = evt_name - *strp;
539 if (sys_length >= MAX_EVENT_LENGTH)
542 strncpy(sys_name, *strp, sys_length);
543 sys_name[sys_length] = '\0';
544 evt_name = evt_name + 1;
546 comma_loc = strchr(evt_name, ',');
548 /* take the event name up to the comma */
549 evt_name = strndup(evt_name, comma_loc - evt_name);
551 flags = strchr(evt_name, ':');
554 evt_name = strndup(evt_name, flags - evt_name);
558 evt_length = strlen(evt_name);
559 if (evt_length >= MAX_EVENT_LENGTH)
561 if (strpbrk(evt_name, "*?")) {
562 *strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */
563 return parse_multiple_tracepoint_event(evlist, sys_name,
566 return parse_single_tracepoint_event(sys_name, evt_name,
567 evt_length, attr, strp);
571 static enum event_result
572 parse_breakpoint_type(const char *type, const char **strp,
573 struct perf_event_attr *attr)
577 for (i = 0; i < 3; i++) {
583 attr->bp_type |= HW_BREAKPOINT_R;
586 attr->bp_type |= HW_BREAKPOINT_W;
589 attr->bp_type |= HW_BREAKPOINT_X;
595 if (!attr->bp_type) /* Default */
596 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
603 static enum event_result
604 parse_breakpoint_event(const char **strp, struct perf_event_attr *attr)
610 enum event_result err;
612 target = strchr(*strp, ':');
616 if (strncmp(*strp, "mem", target - *strp) != 0)
621 addr = strtoull(target, &endaddr, 0);
622 if (target == endaddr)
625 attr->bp_addr = addr;
628 type = strchr(target, ':');
630 /* If no type is defined, just rw as default */
632 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
634 err = parse_breakpoint_type(++type, strp, attr);
635 if (err == EVT_FAILED)
640 * We should find a nice way to override the access length
641 * Provide some defaults for now
643 if (attr->bp_type == HW_BREAKPOINT_X)
644 attr->bp_len = sizeof(long);
646 attr->bp_len = HW_BREAKPOINT_LEN_4;
648 attr->type = PERF_TYPE_BREAKPOINT;
653 static int check_events(const char *str, unsigned int i)
657 n = strlen(event_symbols[i].symbol);
658 if (!strncasecmp(str, event_symbols[i].symbol, n))
661 n = strlen(event_symbols[i].alias);
663 if (!strncasecmp(str, event_symbols[i].alias, n))
670 static enum event_result
671 parse_symbolic_event(const char **strp, struct perf_event_attr *attr)
673 const char *str = *strp;
677 for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
678 n = check_events(str, i);
680 attr->type = event_symbols[i].type;
681 attr->config = event_symbols[i].config;
689 static enum event_result
690 parse_raw_event(const char **strp, struct perf_event_attr *attr)
692 const char *str = *strp;
698 n = hex2u64(str + 1, &config);
700 const char *end = str + n + 1;
701 if (*end != '\0' && *end != ',' && *end != ':')
705 attr->type = PERF_TYPE_RAW;
706 attr->config = config;
712 static enum event_result
713 parse_numeric_event(const char **strp, struct perf_event_attr *attr)
715 const char *str = *strp;
720 type = strtoul(str, &endp, 0);
721 if (endp > str && type < PERF_TYPE_MAX && *endp == ':') {
723 config = strtoul(str, &endp, 0);
726 attr->config = config;
735 parse_event_modifier(const char **strp, struct perf_event_attr *attr)
737 const char *str = *strp;
739 int eu = 0, ek = 0, eh = 0, precise = 0;
753 exclude = eu = ek = eh = 1;
755 } else if (*str == 'k') {
757 exclude = eu = ek = eh = 1;
759 } else if (*str == 'h') {
761 exclude = eu = ek = eh = 1;
763 } else if (*str == 'p') {
775 attr->exclude_user = eu;
776 attr->exclude_kernel = ek;
777 attr->exclude_hv = eh;
778 attr->precise_ip = precise;
784 * Each event can have multiple symbolic names.
785 * Symbolic names are (almost) exactly matched.
787 static enum event_result
788 parse_event_symbols(struct perf_evlist *evlist, const char **str,
789 struct perf_event_attr *attr)
791 enum event_result ret;
793 ret = parse_tracepoint_event(evlist, str, attr);
794 if (ret != EVT_FAILED)
797 ret = parse_raw_event(str, attr);
798 if (ret != EVT_FAILED)
801 ret = parse_numeric_event(str, attr);
802 if (ret != EVT_FAILED)
805 ret = parse_symbolic_event(str, attr);
806 if (ret != EVT_FAILED)
809 ret = parse_generic_hw_event(str, attr);
810 if (ret != EVT_FAILED)
813 ret = parse_breakpoint_event(str, attr);
814 if (ret != EVT_FAILED)
817 fprintf(stderr, "invalid or unsupported event: '%s'\n", *str);
818 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
822 if (parse_event_modifier(str, attr) < 0) {
823 fprintf(stderr, "invalid event modifier: '%s'\n", *str);
824 fprintf(stderr, "Run 'perf list' for a list of valid events and modifiers\n");
832 int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
834 struct perf_event_attr attr;
835 enum event_result ret;
840 memset(&attr, 0, sizeof(attr));
841 ret = parse_event_symbols(evlist, &str, &attr);
842 if (ret == EVT_FAILED)
845 if (!(*str == 0 || *str == ',' || isspace(*str)))
848 if (ret != EVT_HANDLED_ALL) {
849 struct perf_evsel *evsel;
850 evsel = perf_evsel__new(&attr, evlist->nr_entries);
853 perf_evlist__add(evlist, evsel);
855 evsel->name = calloc(str - ostr + 1, 1);
858 strncpy(evsel->name, ostr, str - ostr);
865 while (isspace(*str))
872 int parse_events_option(const struct option *opt, const char *str,
875 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
876 return parse_events(evlist, str, unset);
879 int parse_filter(const struct option *opt, const char *str,
882 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
883 struct perf_evsel *last = NULL;
885 if (evlist->nr_entries > 0)
886 last = list_entry(evlist->entries.prev, struct perf_evsel, node);
888 if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
890 "-F option should follow a -e tracepoint option\n");
894 last->filter = strdup(str);
895 if (last->filter == NULL) {
896 fprintf(stderr, "not enough memory to hold filter string\n");
903 static const char * const event_type_descriptors[] = {
907 "Hardware cache event",
908 "Raw hardware event descriptor",
909 "Hardware breakpoint",
913 * Print the events from <debugfs_mount_point>/tracing/events
916 void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
918 DIR *sys_dir, *evt_dir;
919 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
920 char evt_path[MAXPATHLEN];
921 char dir_path[MAXPATHLEN];
923 if (debugfs_valid_mountpoint(debugfs_path))
926 sys_dir = opendir(debugfs_path);
930 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
931 if (subsys_glob != NULL &&
932 !strglobmatch(sys_dirent.d_name, subsys_glob))
935 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
937 evt_dir = opendir(dir_path);
941 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
942 if (event_glob != NULL &&
943 !strglobmatch(evt_dirent.d_name, event_glob))
946 snprintf(evt_path, MAXPATHLEN, "%s:%s",
947 sys_dirent.d_name, evt_dirent.d_name);
948 printf(" %-50s [%s]\n", evt_path,
949 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
957 * Check whether event is in <debugfs_mount_point>/tracing/events
960 int is_valid_tracepoint(const char *event_string)
962 DIR *sys_dir, *evt_dir;
963 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
964 char evt_path[MAXPATHLEN];
965 char dir_path[MAXPATHLEN];
967 if (debugfs_valid_mountpoint(debugfs_path))
970 sys_dir = opendir(debugfs_path);
974 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
976 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
978 evt_dir = opendir(dir_path);
982 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
983 snprintf(evt_path, MAXPATHLEN, "%s:%s",
984 sys_dirent.d_name, evt_dirent.d_name);
985 if (!strcmp(evt_path, event_string)) {
997 void print_events_type(u8 type)
999 struct event_symbol *syms = event_symbols;
1003 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
1004 if (type != syms->type)
1007 if (strlen(syms->alias))
1008 snprintf(name, sizeof(name), "%s OR %s",
1009 syms->symbol, syms->alias);
1011 snprintf(name, sizeof(name), "%s", syms->symbol);
1013 printf(" %-50s [%s]\n", name,
1014 event_type_descriptors[type]);
1018 int print_hwcache_events(const char *event_glob)
1020 unsigned int type, op, i, printed = 0;
1022 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1023 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1024 /* skip invalid cache type */
1025 if (!is_cache_op_valid(type, op))
1028 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1029 char *name = event_cache_name(type, op, i);
1031 if (event_glob != NULL && !strglobmatch(name, event_glob))
1034 printf(" %-50s [%s]\n", name,
1035 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1044 #define MAX_NAME_LEN 100
1047 * Print the help text for the event symbols:
1049 void print_events(const char *event_glob)
1051 unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
1052 struct event_symbol *syms = event_symbols;
1053 char name[MAX_NAME_LEN];
1056 printf("List of pre-defined events (to be used in -e):\n");
1058 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
1061 if (type != prev_type && printed) {
1067 if (event_glob != NULL &&
1068 !(strglobmatch(syms->symbol, event_glob) ||
1069 (syms->alias && strglobmatch(syms->alias, event_glob))))
1072 if (strlen(syms->alias))
1073 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1075 strncpy(name, syms->symbol, MAX_NAME_LEN);
1076 printf(" %-50s [%s]\n", name,
1077 event_type_descriptors[type]);
1083 if (ntypes_printed) {
1087 print_hwcache_events(event_glob);
1089 if (event_glob != NULL)
1093 printf(" %-50s [%s]\n",
1094 "rNNN (see 'perf list --help' on how to encode it)",
1095 event_type_descriptors[PERF_TYPE_RAW]);
1098 printf(" %-50s [%s]\n",
1099 "mem:<addr>[:access]",
1100 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1103 print_tracepoint_events(NULL, NULL);