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
))