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
);
635 if (IS_ERR(obj
) || !obj
) {
639 err
= obj
? PTR_ERR(obj
) : -EINVAL
;
642 snprintf(errbuf
, sizeof(errbuf
),
643 "BPF support is not compiled");
645 snprintf(errbuf
, sizeof(errbuf
),
646 "BPF object file '%s' is invalid",
649 data
->error
->help
= strdup("(add -v to see detail)");
650 data
->error
->str
= strdup(errbuf
);
654 return parse_events_load_bpf_obj(data
, list
, obj
);
658 parse_breakpoint_type(const char *type
, struct perf_event_attr
*attr
)
662 for (i
= 0; i
< 3; i
++) {
663 if (!type
|| !type
[i
])
666 #define CHECK_SET_TYPE(bit) \
668 if (attr->bp_type & bit) \
671 attr->bp_type |= bit; \
676 CHECK_SET_TYPE(HW_BREAKPOINT_R
);
679 CHECK_SET_TYPE(HW_BREAKPOINT_W
);
682 CHECK_SET_TYPE(HW_BREAKPOINT_X
);
689 #undef CHECK_SET_TYPE
691 if (!attr
->bp_type
) /* Default */
692 attr
->bp_type
= HW_BREAKPOINT_R
| HW_BREAKPOINT_W
;
697 int parse_events_add_breakpoint(struct list_head
*list
, int *idx
,
698 void *ptr
, char *type
, u64 len
)
700 struct perf_event_attr attr
;
702 memset(&attr
, 0, sizeof(attr
));
703 attr
.bp_addr
= (unsigned long) ptr
;
705 if (parse_breakpoint_type(type
, &attr
))
708 /* Provide some defaults if len is not specified */
710 if (attr
.bp_type
== HW_BREAKPOINT_X
)
713 len
= HW_BREAKPOINT_LEN_4
;
718 attr
.type
= PERF_TYPE_BREAKPOINT
;
719 attr
.sample_period
= 1;
721 return add_event(list
, idx
, &attr
, NULL
, NULL
);
724 static int check_type_val(struct parse_events_term
*term
,
725 struct parse_events_error
*err
,
728 if (type
== term
->type_val
)
732 err
->idx
= term
->err_val
;
733 if (type
== PARSE_EVENTS__TERM_TYPE_NUM
)
734 err
->str
= strdup("expected numeric value");
736 err
->str
= strdup("expected string value");
741 typedef int config_term_func_t(struct perf_event_attr
*attr
,
742 struct parse_events_term
*term
,
743 struct parse_events_error
*err
);
745 static int config_term_common(struct perf_event_attr
*attr
,
746 struct parse_events_term
*term
,
747 struct parse_events_error
*err
)
749 #define CHECK_TYPE_VAL(type) \
751 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
755 switch (term
->type_term
) {
756 case PARSE_EVENTS__TERM_TYPE_CONFIG
:
758 attr
->config
= term
->val
.num
;
760 case PARSE_EVENTS__TERM_TYPE_CONFIG1
:
762 attr
->config1
= term
->val
.num
;
764 case PARSE_EVENTS__TERM_TYPE_CONFIG2
:
766 attr
->config2
= term
->val
.num
;
768 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD
:
771 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ
:
774 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE
:
776 * TODO uncomment when the field is available
777 * attr->branch_sample_type = term->val.num;
780 case PARSE_EVENTS__TERM_TYPE_TIME
:
782 if (term
->val
.num
> 1) {
783 err
->str
= strdup("expected 0 or 1");
784 err
->idx
= term
->err_val
;
788 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH
:
791 case PARSE_EVENTS__TERM_TYPE_STACKSIZE
:
794 case PARSE_EVENTS__TERM_TYPE_INHERIT
:
797 case PARSE_EVENTS__TERM_TYPE_NOINHERIT
:
800 case PARSE_EVENTS__TERM_TYPE_NAME
:
804 err
->str
= strdup("unknown term");
805 err
->idx
= term
->err_term
;
806 err
->help
= parse_events_formats_error_string(NULL
);
811 #undef CHECK_TYPE_VAL
814 static int config_term_pmu(struct perf_event_attr
*attr
,
815 struct parse_events_term
*term
,
816 struct parse_events_error
*err
)
818 if (term
->type_term
== PARSE_EVENTS__TERM_TYPE_USER
)
820 * Always succeed for sysfs terms, as we dont know
821 * at this point what type they need to have.
825 return config_term_common(attr
, term
, err
);
828 static int config_term_tracepoint(struct perf_event_attr
*attr
,
829 struct parse_events_term
*term
,
830 struct parse_events_error
*err
)
832 switch (term
->type_term
) {
833 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH
:
834 case PARSE_EVENTS__TERM_TYPE_STACKSIZE
:
835 case PARSE_EVENTS__TERM_TYPE_INHERIT
:
836 case PARSE_EVENTS__TERM_TYPE_NOINHERIT
:
837 return config_term_common(attr
, term
, err
);
840 err
->idx
= term
->err_term
;
841 err
->str
= strdup("unknown term");
842 err
->help
= strdup("valid terms: call-graph,stack-size\n");
850 static int config_attr(struct perf_event_attr
*attr
,
851 struct list_head
*head
,
852 struct parse_events_error
*err
,
853 config_term_func_t config_term
)
855 struct parse_events_term
*term
;
857 list_for_each_entry(term
, head
, list
)
858 if (config_term(attr
, term
, err
))
864 static int get_config_terms(struct list_head
*head_config
,
865 struct list_head
*head_terms __maybe_unused
)
867 #define ADD_CONFIG_TERM(__type, __name, __val) \
869 struct perf_evsel_config_term *__t; \
871 __t = zalloc(sizeof(*__t)); \
875 INIT_LIST_HEAD(&__t->list); \
876 __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
877 __t->val.__name = __val; \
878 list_add_tail(&__t->list, head_terms); \
881 struct parse_events_term
*term
;
883 list_for_each_entry(term
, head_config
, list
) {
884 switch (term
->type_term
) {
885 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD
:
886 ADD_CONFIG_TERM(PERIOD
, period
, term
->val
.num
);
888 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ
:
889 ADD_CONFIG_TERM(FREQ
, freq
, term
->val
.num
);
891 case PARSE_EVENTS__TERM_TYPE_TIME
:
892 ADD_CONFIG_TERM(TIME
, time
, term
->val
.num
);
894 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH
:
895 ADD_CONFIG_TERM(CALLGRAPH
, callgraph
, term
->val
.str
);
897 case PARSE_EVENTS__TERM_TYPE_STACKSIZE
:
898 ADD_CONFIG_TERM(STACK_USER
, stack_user
, term
->val
.num
);
900 case PARSE_EVENTS__TERM_TYPE_INHERIT
:
901 ADD_CONFIG_TERM(INHERIT
, inherit
, term
->val
.num
? 1 : 0);
903 case PARSE_EVENTS__TERM_TYPE_NOINHERIT
:
904 ADD_CONFIG_TERM(INHERIT
, inherit
, term
->val
.num
? 0 : 1);
910 #undef ADD_EVSEL_CONFIG
914 int parse_events_add_tracepoint(struct list_head
*list
, int *idx
,
915 char *sys
, char *event
,
916 struct parse_events_error
*err
,
917 struct list_head
*head_config
)
920 struct perf_event_attr attr
;
922 if (config_attr(&attr
, head_config
, err
,
923 config_term_tracepoint
))
927 if (strpbrk(sys
, "*?"))
928 return add_tracepoint_multi_sys(list
, idx
, sys
, event
,
931 return add_tracepoint_event(list
, idx
, sys
, event
,
935 int parse_events_add_numeric(struct parse_events_evlist
*data
,
936 struct list_head
*list
,
937 u32 type
, u64 config
,
938 struct list_head
*head_config
)
940 struct perf_event_attr attr
;
941 LIST_HEAD(config_terms
);
943 memset(&attr
, 0, sizeof(attr
));
945 attr
.config
= config
;
948 if (config_attr(&attr
, head_config
, data
->error
,
952 if (get_config_terms(head_config
, &config_terms
))
956 return add_event(list
, &data
->idx
, &attr
, NULL
, &config_terms
);
959 static int parse_events__is_name_term(struct parse_events_term
*term
)
961 return term
->type_term
== PARSE_EVENTS__TERM_TYPE_NAME
;
964 static char *pmu_event_name(struct list_head
*head_terms
)
966 struct parse_events_term
*term
;
968 list_for_each_entry(term
, head_terms
, list
)
969 if (parse_events__is_name_term(term
))
970 return term
->val
.str
;
975 int parse_events_add_pmu(struct parse_events_evlist
*data
,
976 struct list_head
*list
, char *name
,
977 struct list_head
*head_config
)
979 struct perf_event_attr attr
;
980 struct perf_pmu_info info
;
981 struct perf_pmu
*pmu
;
982 struct perf_evsel
*evsel
;
983 LIST_HEAD(config_terms
);
985 pmu
= perf_pmu__find(name
);
989 if (pmu
->default_config
) {
990 memcpy(&attr
, pmu
->default_config
,
991 sizeof(struct perf_event_attr
));
993 memset(&attr
, 0, sizeof(attr
));
997 attr
.type
= pmu
->type
;
998 evsel
= __add_event(list
, &data
->idx
, &attr
, NULL
, pmu
->cpus
, NULL
);
999 return evsel
? 0 : -ENOMEM
;
1002 if (perf_pmu__check_alias(pmu
, head_config
, &info
))
1006 * Configure hardcoded terms first, no need to check
1007 * return value when called with fail == 0 ;)
1009 if (config_attr(&attr
, head_config
, data
->error
, config_term_pmu
))
1012 if (get_config_terms(head_config
, &config_terms
))
1015 if (perf_pmu__config(pmu
, &attr
, head_config
, data
->error
))
1018 evsel
= __add_event(list
, &data
->idx
, &attr
,
1019 pmu_event_name(head_config
), pmu
->cpus
,
1022 evsel
->unit
= info
.unit
;
1023 evsel
->scale
= info
.scale
;
1024 evsel
->per_pkg
= info
.per_pkg
;
1025 evsel
->snapshot
= info
.snapshot
;
1028 return evsel
? 0 : -ENOMEM
;
1031 int parse_events__modifier_group(struct list_head
*list
,
1034 return parse_events__modifier_event(list
, event_mod
, true);
1037 void parse_events__set_leader(char *name
, struct list_head
*list
)
1039 struct perf_evsel
*leader
;
1041 if (list_empty(list
)) {
1042 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1046 __perf_evlist__set_leader(list
);
1047 leader
= list_entry(list
->next
, struct perf_evsel
, node
);
1048 leader
->group_name
= name
? strdup(name
) : NULL
;
1051 /* list_event is assumed to point to malloc'ed memory */
1052 void parse_events_update_lists(struct list_head
*list_event
,
1053 struct list_head
*list_all
)
1056 * Called for single event definition. Update the
1057 * 'all event' list, and reinit the 'single event'
1058 * list, for next event definition.
1060 list_splice_tail(list_event
, list_all
);
1064 struct event_modifier
{
1078 static int get_event_modifier(struct event_modifier
*mod
, char *str
,
1079 struct perf_evsel
*evsel
)
1081 int eu
= evsel
? evsel
->attr
.exclude_user
: 0;
1082 int ek
= evsel
? evsel
->attr
.exclude_kernel
: 0;
1083 int eh
= evsel
? evsel
->attr
.exclude_hv
: 0;
1084 int eH
= evsel
? evsel
->attr
.exclude_host
: 0;
1085 int eG
= evsel
? evsel
->attr
.exclude_guest
: 0;
1086 int eI
= evsel
? evsel
->attr
.exclude_idle
: 0;
1087 int precise
= evsel
? evsel
->attr
.precise_ip
: 0;
1088 int precise_max
= 0;
1089 int sample_read
= 0;
1090 int pinned
= evsel
? evsel
->attr
.pinned
: 0;
1092 int exclude
= eu
| ek
| eh
;
1093 int exclude_GH
= evsel
? evsel
->exclude_GH
: 0;
1095 memset(mod
, 0, sizeof(*mod
));
1100 exclude
= eu
= ek
= eh
= 1;
1102 } else if (*str
== 'k') {
1104 exclude
= eu
= ek
= eh
= 1;
1106 } else if (*str
== 'h') {
1108 exclude
= eu
= ek
= eh
= 1;
1110 } else if (*str
== 'G') {
1112 exclude_GH
= eG
= eH
= 1;
1114 } else if (*str
== 'H') {
1116 exclude_GH
= eG
= eH
= 1;
1118 } else if (*str
== 'I') {
1120 } else if (*str
== 'p') {
1122 /* use of precise requires exclude_guest */
1125 } else if (*str
== 'P') {
1127 } else if (*str
== 'S') {
1129 } else if (*str
== 'D') {
1140 * 0 - SAMPLE_IP can have arbitrary skid
1141 * 1 - SAMPLE_IP must have constant skid
1142 * 2 - SAMPLE_IP requested to have 0 skid
1143 * 3 - SAMPLE_IP must have 0 skid
1145 * See also PERF_RECORD_MISC_EXACT_IP
1156 mod
->precise
= precise
;
1157 mod
->precise_max
= precise_max
;
1158 mod
->exclude_GH
= exclude_GH
;
1159 mod
->sample_read
= sample_read
;
1160 mod
->pinned
= pinned
;
1166 * Basic modifier sanity check to validate it contains only one
1167 * instance of any modifier (apart from 'p') present.
1169 static int check_modifier(char *str
)
1173 /* The sizeof includes 0 byte as well. */
1174 if (strlen(str
) > (sizeof("ukhGHpppPSDI") - 1))
1178 if (*p
!= 'p' && strchr(p
+ 1, *p
))
1186 int parse_events__modifier_event(struct list_head
*list
, char *str
, bool add
)
1188 struct perf_evsel
*evsel
;
1189 struct event_modifier mod
;
1194 if (check_modifier(str
))
1197 if (!add
&& get_event_modifier(&mod
, str
, NULL
))
1200 __evlist__for_each(list
, evsel
) {
1201 if (add
&& get_event_modifier(&mod
, str
, evsel
))
1204 evsel
->attr
.exclude_user
= mod
.eu
;
1205 evsel
->attr
.exclude_kernel
= mod
.ek
;
1206 evsel
->attr
.exclude_hv
= mod
.eh
;
1207 evsel
->attr
.precise_ip
= mod
.precise
;
1208 evsel
->attr
.exclude_host
= mod
.eH
;
1209 evsel
->attr
.exclude_guest
= mod
.eG
;
1210 evsel
->attr
.exclude_idle
= mod
.eI
;
1211 evsel
->exclude_GH
= mod
.exclude_GH
;
1212 evsel
->sample_read
= mod
.sample_read
;
1213 evsel
->precise_max
= mod
.precise_max
;
1215 if (perf_evsel__is_group_leader(evsel
))
1216 evsel
->attr
.pinned
= mod
.pinned
;
1222 int parse_events_name(struct list_head
*list
, char *name
)
1224 struct perf_evsel
*evsel
;
1226 __evlist__for_each(list
, evsel
) {
1228 evsel
->name
= strdup(name
);
1235 comp_pmu(const void *p1
, const void *p2
)
1237 struct perf_pmu_event_symbol
*pmu1
= (struct perf_pmu_event_symbol
*) p1
;
1238 struct perf_pmu_event_symbol
*pmu2
= (struct perf_pmu_event_symbol
*) p2
;
1240 return strcmp(pmu1
->symbol
, pmu2
->symbol
);
1243 static void perf_pmu__parse_cleanup(void)
1245 if (perf_pmu_events_list_num
> 0) {
1246 struct perf_pmu_event_symbol
*p
;
1249 for (i
= 0; i
< perf_pmu_events_list_num
; i
++) {
1250 p
= perf_pmu_events_list
+ i
;
1253 free(perf_pmu_events_list
);
1254 perf_pmu_events_list
= NULL
;
1255 perf_pmu_events_list_num
= 0;
1259 #define SET_SYMBOL(str, stype) \
1268 * Read the pmu events list from sysfs
1269 * Save it into perf_pmu_events_list
1271 static void perf_pmu__parse_init(void)
1274 struct perf_pmu
*pmu
= NULL
;
1275 struct perf_pmu_alias
*alias
;
1278 pmu
= perf_pmu__find("cpu");
1279 if ((pmu
== NULL
) || list_empty(&pmu
->aliases
)) {
1280 perf_pmu_events_list_num
= -1;
1283 list_for_each_entry(alias
, &pmu
->aliases
, list
) {
1284 if (strchr(alias
->name
, '-'))
1288 perf_pmu_events_list
= malloc(sizeof(struct perf_pmu_event_symbol
) * len
);
1289 if (!perf_pmu_events_list
)
1291 perf_pmu_events_list_num
= len
;
1294 list_for_each_entry(alias
, &pmu
->aliases
, list
) {
1295 struct perf_pmu_event_symbol
*p
= perf_pmu_events_list
+ len
;
1296 char *tmp
= strchr(alias
->name
, '-');
1299 SET_SYMBOL(strndup(alias
->name
, tmp
- alias
->name
),
1300 PMU_EVENT_SYMBOL_PREFIX
);
1302 SET_SYMBOL(strdup(++tmp
), PMU_EVENT_SYMBOL_SUFFIX
);
1305 SET_SYMBOL(strdup(alias
->name
), PMU_EVENT_SYMBOL
);
1309 qsort(perf_pmu_events_list
, len
,
1310 sizeof(struct perf_pmu_event_symbol
), comp_pmu
);
1314 perf_pmu__parse_cleanup();
1317 enum perf_pmu_event_symbol_type
1318 perf_pmu__parse_check(const char *name
)
1320 struct perf_pmu_event_symbol p
, *r
;
1322 /* scan kernel pmu events from sysfs if needed */
1323 if (perf_pmu_events_list_num
== 0)
1324 perf_pmu__parse_init();
1326 * name "cpu" could be prefix of cpu-cycles or cpu// events.
1327 * cpu-cycles has been handled by hardcode.
1328 * So it must be cpu// events, not kernel pmu event.
1330 if ((perf_pmu_events_list_num
<= 0) || !strcmp(name
, "cpu"))
1331 return PMU_EVENT_SYMBOL_ERR
;
1333 p
.symbol
= strdup(name
);
1334 r
= bsearch(&p
, perf_pmu_events_list
,
1335 (size_t) perf_pmu_events_list_num
,
1336 sizeof(struct perf_pmu_event_symbol
), comp_pmu
);
1338 return r
? r
->type
: PMU_EVENT_SYMBOL_ERR
;
1341 static int parse_events__scanner(const char *str
, void *data
, int start_token
)
1343 YY_BUFFER_STATE buffer
;
1347 ret
= parse_events_lex_init_extra(start_token
, &scanner
);
1351 buffer
= parse_events__scan_string(str
, scanner
);
1354 parse_events_debug
= 1;
1356 ret
= parse_events_parse(data
, scanner
);
1358 parse_events__flush_buffer(buffer
, scanner
);
1359 parse_events__delete_buffer(buffer
, scanner
);
1360 parse_events_lex_destroy(scanner
);
1365 * parse event config string, return a list of event terms.
1367 int parse_events_terms(struct list_head
*terms
, const char *str
)
1369 struct parse_events_terms data
= {
1374 ret
= parse_events__scanner(str
, &data
, PE_START_TERMS
);
1376 list_splice(data
.terms
, terms
);
1382 parse_events__free_terms(data
.terms
);
1386 int parse_events(struct perf_evlist
*evlist
, const char *str
,
1387 struct parse_events_error
*err
)
1389 struct parse_events_evlist data
= {
1390 .list
= LIST_HEAD_INIT(data
.list
),
1391 .idx
= evlist
->nr_entries
,
1396 ret
= parse_events__scanner(str
, &data
, PE_START_EVENTS
);
1397 perf_pmu__parse_cleanup();
1399 struct perf_evsel
*last
;
1401 if (list_empty(&data
.list
)) {
1402 WARN_ONCE(true, "WARNING: event parser found nothing");
1406 perf_evlist__splice_list_tail(evlist
, &data
.list
);
1407 evlist
->nr_groups
+= data
.nr_groups
;
1408 last
= perf_evlist__last(evlist
);
1409 last
->cmdline_group_boundary
= true;
1415 * There are 2 users - builtin-record and builtin-test objects.
1416 * Both call perf_evlist__delete in case of error, so we dont
1422 #define MAX_WIDTH 1000
1423 static int get_term_width(void)
1427 get_term_dimensions(&ws
);
1428 return ws
.ws_col
> MAX_WIDTH
? MAX_WIDTH
: ws
.ws_col
;
1431 static void parse_events_print_error(struct parse_events_error
*err
,
1434 const char *str
= "invalid or unsupported event: ";
1435 char _buf
[MAX_WIDTH
];
1436 char *buf
= (char *) event
;
1440 /* -2 for extra '' in the final fprintf */
1441 int width
= get_term_width() - 2;
1442 int len_event
= strlen(event
);
1443 int len_str
, max_len
, cut
= 0;
1446 * Maximum error index indent, we will cut
1447 * the event string if it's bigger.
1449 int max_err_idx
= 13;
1452 * Let's be specific with the message when
1453 * we have the precise error.
1455 str
= "event syntax error: ";
1456 len_str
= strlen(str
);
1457 max_len
= width
- len_str
;
1461 /* We're cutting from the beggining. */
1462 if (err
->idx
> max_err_idx
)
1463 cut
= err
->idx
- max_err_idx
;
1465 strncpy(buf
, event
+ cut
, max_len
);
1467 /* Mark cut parts with '..' on both sides. */
1469 buf
[0] = buf
[1] = '.';
1471 if ((len_event
- cut
) > max_len
) {
1472 buf
[max_len
- 1] = buf
[max_len
- 2] = '.';
1476 idx
= len_str
+ err
->idx
- cut
;
1479 fprintf(stderr
, "%s'%s'\n", str
, buf
);
1481 fprintf(stderr
, "%*s\\___ %s\n", idx
+ 1, "", err
->str
);
1483 fprintf(stderr
, "\n%s\n", err
->help
);
1488 fprintf(stderr
, "Run 'perf list' for a list of valid events\n");
1493 int parse_events_option(const struct option
*opt
, const char *str
,
1494 int unset __maybe_unused
)
1496 struct perf_evlist
*evlist
= *(struct perf_evlist
**)opt
->value
;
1497 struct parse_events_error err
= { .idx
= 0, };
1498 int ret
= parse_events(evlist
, str
, &err
);
1501 parse_events_print_error(&err
, str
);
1507 foreach_evsel_in_last_glob(struct perf_evlist
*evlist
,
1508 int (*func
)(struct perf_evsel
*evsel
,
1512 struct perf_evsel
*last
= NULL
;
1516 * Don't return when list_empty, give func a chance to report
1517 * error when it found last == NULL.
1519 * So no need to WARN here, let *func do this.
1521 if (evlist
->nr_entries
> 0)
1522 last
= perf_evlist__last(evlist
);
1525 err
= (*func
)(last
, arg
);
1531 if (last
->node
.prev
== &evlist
->entries
)
1533 last
= list_entry(last
->node
.prev
, struct perf_evsel
, node
);
1534 } while (!last
->cmdline_group_boundary
);
1539 static int set_filter(struct perf_evsel
*evsel
, const void *arg
)
1541 const char *str
= arg
;
1543 if (evsel
== NULL
|| evsel
->attr
.type
!= PERF_TYPE_TRACEPOINT
) {
1545 "--filter option should follow a -e tracepoint option\n");
1549 if (perf_evsel__append_filter(evsel
, "&&", str
) < 0) {
1551 "not enough memory to hold filter string\n");
1558 int parse_filter(const struct option
*opt
, const char *str
,
1559 int unset __maybe_unused
)
1561 struct perf_evlist
*evlist
= *(struct perf_evlist
**)opt
->value
;
1563 return foreach_evsel_in_last_glob(evlist
, set_filter
,
1567 static int add_exclude_perf_filter(struct perf_evsel
*evsel
,
1568 const void *arg __maybe_unused
)
1570 char new_filter
[64];
1572 if (evsel
== NULL
|| evsel
->attr
.type
!= PERF_TYPE_TRACEPOINT
) {
1574 "--exclude-perf option should follow a -e tracepoint option\n");
1578 snprintf(new_filter
, sizeof(new_filter
), "common_pid != %d", getpid());
1580 if (perf_evsel__append_filter(evsel
, "&&", new_filter
) < 0) {
1582 "not enough memory to hold filter string\n");
1589 int exclude_perf(const struct option
*opt
,
1590 const char *arg __maybe_unused
,
1591 int unset __maybe_unused
)
1593 struct perf_evlist
*evlist
= *(struct perf_evlist
**)opt
->value
;
1595 return foreach_evsel_in_last_glob(evlist
, add_exclude_perf_filter
,
1599 static const char * const event_type_descriptors
[] = {
1603 "Hardware cache event",
1604 "Raw hardware event descriptor",
1605 "Hardware breakpoint",
1608 static int cmp_string(const void *a
, const void *b
)
1610 const char * const *as
= a
;
1611 const char * const *bs
= b
;
1613 return strcmp(*as
, *bs
);
1617 * Print the events from <debugfs_mount_point>/tracing/events
1620 void print_tracepoint_events(const char *subsys_glob
, const char *event_glob
,
1623 DIR *sys_dir
, *evt_dir
;
1624 struct dirent
*sys_next
, *evt_next
, sys_dirent
, evt_dirent
;
1625 char evt_path
[MAXPATHLEN
];
1626 char dir_path
[MAXPATHLEN
];
1627 char **evt_list
= NULL
;
1628 unsigned int evt_i
= 0, evt_num
= 0;
1629 bool evt_num_known
= false;
1632 sys_dir
= opendir(tracing_events_path
);
1636 if (evt_num_known
) {
1637 evt_list
= zalloc(sizeof(char *) * evt_num
);
1639 goto out_close_sys_dir
;
1642 for_each_subsystem(sys_dir
, sys_dirent
, sys_next
) {
1643 if (subsys_glob
!= NULL
&&
1644 !strglobmatch(sys_dirent
.d_name
, subsys_glob
))
1647 snprintf(dir_path
, MAXPATHLEN
, "%s/%s", tracing_events_path
,
1649 evt_dir
= opendir(dir_path
);
1653 for_each_event(sys_dirent
, evt_dir
, evt_dirent
, evt_next
) {
1654 if (event_glob
!= NULL
&&
1655 !strglobmatch(evt_dirent
.d_name
, event_glob
))
1658 if (!evt_num_known
) {
1663 snprintf(evt_path
, MAXPATHLEN
, "%s:%s",
1664 sys_dirent
.d_name
, evt_dirent
.d_name
);
1666 evt_list
[evt_i
] = strdup(evt_path
);
1667 if (evt_list
[evt_i
] == NULL
)
1668 goto out_close_evt_dir
;
1675 if (!evt_num_known
) {
1676 evt_num_known
= true;
1679 qsort(evt_list
, evt_num
, sizeof(char *), cmp_string
);
1681 while (evt_i
< evt_num
) {
1683 printf("%s ", evt_list
[evt_i
++]);
1686 printf(" %-50s [%s]\n", evt_list
[evt_i
++],
1687 event_type_descriptors
[PERF_TYPE_TRACEPOINT
]);
1689 if (evt_num
&& pager_in_use())
1694 for (evt_i
= 0; evt_i
< evt_num
; evt_i
++)
1695 zfree(&evt_list
[evt_i
]);
1704 printf("FATAL: not enough memory to print %s\n",
1705 event_type_descriptors
[PERF_TYPE_TRACEPOINT
]);
1711 * Check whether event is in <debugfs_mount_point>/tracing/events
1714 int is_valid_tracepoint(const char *event_string
)
1716 DIR *sys_dir
, *evt_dir
;
1717 struct dirent
*sys_next
, *evt_next
, sys_dirent
, evt_dirent
;
1718 char evt_path
[MAXPATHLEN
];
1719 char dir_path
[MAXPATHLEN
];
1721 sys_dir
= opendir(tracing_events_path
);
1725 for_each_subsystem(sys_dir
, sys_dirent
, sys_next
) {
1727 snprintf(dir_path
, MAXPATHLEN
, "%s/%s", tracing_events_path
,
1729 evt_dir
= opendir(dir_path
);
1733 for_each_event(sys_dirent
, evt_dir
, evt_dirent
, evt_next
) {
1734 snprintf(evt_path
, MAXPATHLEN
, "%s:%s",
1735 sys_dirent
.d_name
, evt_dirent
.d_name
);
1736 if (!strcmp(evt_path
, event_string
)) {
1748 static bool is_event_supported(u8 type
, unsigned config
)
1752 struct perf_evsel
*evsel
;
1753 struct perf_event_attr attr
= {
1759 struct thread_map map
;
1766 evsel
= perf_evsel__new(&attr
);
1768 open_return
= perf_evsel__open(evsel
, NULL
, &tmap
.map
);
1769 ret
= open_return
>= 0;
1771 if (open_return
== -EACCES
) {
1773 * This happens if the paranoid value
1774 * /proc/sys/kernel/perf_event_paranoid is set to 2
1775 * Re-run with exclude_kernel set; we don't do that
1776 * by default as some ARM machines do not support it.
1779 evsel
->attr
.exclude_kernel
= 1;
1780 ret
= perf_evsel__open(evsel
, NULL
, &tmap
.map
) >= 0;
1782 perf_evsel__delete(evsel
);
1788 int print_hwcache_events(const char *event_glob
, bool name_only
)
1790 unsigned int type
, op
, i
, evt_i
= 0, evt_num
= 0;
1792 char **evt_list
= NULL
;
1793 bool evt_num_known
= false;
1796 if (evt_num_known
) {
1797 evt_list
= zalloc(sizeof(char *) * evt_num
);
1802 for (type
= 0; type
< PERF_COUNT_HW_CACHE_MAX
; type
++) {
1803 for (op
= 0; op
< PERF_COUNT_HW_CACHE_OP_MAX
; op
++) {
1804 /* skip invalid cache type */
1805 if (!perf_evsel__is_cache_op_valid(type
, op
))
1808 for (i
= 0; i
< PERF_COUNT_HW_CACHE_RESULT_MAX
; i
++) {
1809 __perf_evsel__hw_cache_type_op_res_name(type
, op
, i
,
1810 name
, sizeof(name
));
1811 if (event_glob
!= NULL
&& !strglobmatch(name
, event_glob
))
1814 if (!is_event_supported(PERF_TYPE_HW_CACHE
,
1815 type
| (op
<< 8) | (i
<< 16)))
1818 if (!evt_num_known
) {
1823 evt_list
[evt_i
] = strdup(name
);
1824 if (evt_list
[evt_i
] == NULL
)
1831 if (!evt_num_known
) {
1832 evt_num_known
= true;
1835 qsort(evt_list
, evt_num
, sizeof(char *), cmp_string
);
1837 while (evt_i
< evt_num
) {
1839 printf("%s ", evt_list
[evt_i
++]);
1842 printf(" %-50s [%s]\n", evt_list
[evt_i
++],
1843 event_type_descriptors
[PERF_TYPE_HW_CACHE
]);
1845 if (evt_num
&& pager_in_use())
1850 for (evt_i
= 0; evt_i
< evt_num
; evt_i
++)
1851 zfree(&evt_list
[evt_i
]);
1856 printf("FATAL: not enough memory to print %s\n", event_type_descriptors
[PERF_TYPE_HW_CACHE
]);
1862 void print_symbol_events(const char *event_glob
, unsigned type
,
1863 struct event_symbol
*syms
, unsigned max
,
1866 unsigned int i
, evt_i
= 0, evt_num
= 0;
1867 char name
[MAX_NAME_LEN
];
1868 char **evt_list
= NULL
;
1869 bool evt_num_known
= false;
1872 if (evt_num_known
) {
1873 evt_list
= zalloc(sizeof(char *) * evt_num
);
1879 for (i
= 0; i
< max
; i
++, syms
++) {
1881 if (event_glob
!= NULL
&&
1882 !(strglobmatch(syms
->symbol
, event_glob
) ||
1883 (syms
->alias
&& strglobmatch(syms
->alias
, event_glob
))))
1886 if (!is_event_supported(type
, i
))
1889 if (!evt_num_known
) {
1894 if (!name_only
&& strlen(syms
->alias
))
1895 snprintf(name
, MAX_NAME_LEN
, "%s OR %s", syms
->symbol
, syms
->alias
);
1897 strncpy(name
, syms
->symbol
, MAX_NAME_LEN
);
1899 evt_list
[evt_i
] = strdup(name
);
1900 if (evt_list
[evt_i
] == NULL
)
1905 if (!evt_num_known
) {
1906 evt_num_known
= true;
1909 qsort(evt_list
, evt_num
, sizeof(char *), cmp_string
);
1911 while (evt_i
< evt_num
) {
1913 printf("%s ", evt_list
[evt_i
++]);
1916 printf(" %-50s [%s]\n", evt_list
[evt_i
++], event_type_descriptors
[type
]);
1918 if (evt_num
&& pager_in_use())
1923 for (evt_i
= 0; evt_i
< evt_num
; evt_i
++)
1924 zfree(&evt_list
[evt_i
]);
1929 printf("FATAL: not enough memory to print %s\n", event_type_descriptors
[type
]);
1935 * Print the help text for the event symbols:
1937 void print_events(const char *event_glob
, bool name_only
)
1939 print_symbol_events(event_glob
, PERF_TYPE_HARDWARE
,
1940 event_symbols_hw
, PERF_COUNT_HW_MAX
, name_only
);
1942 print_symbol_events(event_glob
, PERF_TYPE_SOFTWARE
,
1943 event_symbols_sw
, PERF_COUNT_SW_MAX
, name_only
);
1945 print_hwcache_events(event_glob
, name_only
);
1947 print_pmu_events(event_glob
, name_only
);
1949 if (event_glob
!= NULL
)
1953 printf(" %-50s [%s]\n",
1955 event_type_descriptors
[PERF_TYPE_RAW
]);
1956 printf(" %-50s [%s]\n",
1957 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1958 event_type_descriptors
[PERF_TYPE_RAW
]);
1960 printf(" (see 'man perf-list' on how to encode it)\n\n");
1962 printf(" %-50s [%s]\n",
1963 "mem:<addr>[/len][:access]",
1964 event_type_descriptors
[PERF_TYPE_BREAKPOINT
]);
1969 print_tracepoint_events(NULL
, NULL
, name_only
);
1972 int parse_events__is_hardcoded_term(struct parse_events_term
*term
)
1974 return term
->type_term
!= PARSE_EVENTS__TERM_TYPE_USER
;
1977 static int new_term(struct parse_events_term
**_term
, int type_val
,
1978 int type_term
, char *config
,
1979 char *str
, u64 num
, int err_term
, int err_val
)
1981 struct parse_events_term
*term
;
1983 term
= zalloc(sizeof(*term
));
1987 INIT_LIST_HEAD(&term
->list
);
1988 term
->type_val
= type_val
;
1989 term
->type_term
= type_term
;
1990 term
->config
= config
;
1991 term
->err_term
= err_term
;
1992 term
->err_val
= err_val
;
1995 case PARSE_EVENTS__TERM_TYPE_NUM
:
1996 term
->val
.num
= num
;
1998 case PARSE_EVENTS__TERM_TYPE_STR
:
1999 term
->val
.str
= str
;
2010 int parse_events_term__num(struct parse_events_term
**term
,
2011 int type_term
, char *config
, u64 num
,
2012 void *loc_term_
, void *loc_val_
)
2014 YYLTYPE
*loc_term
= loc_term_
;
2015 YYLTYPE
*loc_val
= loc_val_
;
2017 return new_term(term
, PARSE_EVENTS__TERM_TYPE_NUM
, type_term
,
2019 loc_term
? loc_term
->first_column
: 0,
2020 loc_val
? loc_val
->first_column
: 0);
2023 int parse_events_term__str(struct parse_events_term
**term
,
2024 int type_term
, char *config
, char *str
,
2025 void *loc_term_
, void *loc_val_
)
2027 YYLTYPE
*loc_term
= loc_term_
;
2028 YYLTYPE
*loc_val
= loc_val_
;
2030 return new_term(term
, PARSE_EVENTS__TERM_TYPE_STR
, type_term
,
2032 loc_term
? loc_term
->first_column
: 0,
2033 loc_val
? loc_val
->first_column
: 0);
2036 int parse_events_term__sym_hw(struct parse_events_term
**term
,
2037 char *config
, unsigned idx
)
2039 struct event_symbol
*sym
;
2041 BUG_ON(idx
>= PERF_COUNT_HW_MAX
);
2042 sym
= &event_symbols_hw
[idx
];
2045 return new_term(term
, PARSE_EVENTS__TERM_TYPE_STR
,
2046 PARSE_EVENTS__TERM_TYPE_USER
, config
,
2047 (char *) sym
->symbol
, 0, 0, 0);
2049 return new_term(term
, PARSE_EVENTS__TERM_TYPE_STR
,
2050 PARSE_EVENTS__TERM_TYPE_USER
,
2051 (char *) "event", (char *) sym
->symbol
,
2055 int parse_events_term__clone(struct parse_events_term
**new,
2056 struct parse_events_term
*term
)
2058 return new_term(new, term
->type_val
, term
->type_term
, term
->config
,
2059 term
->val
.str
, term
->val
.num
,
2060 term
->err_term
, term
->err_val
);
2063 void parse_events__free_terms(struct list_head
*terms
)
2065 struct parse_events_term
*term
, *h
;
2067 list_for_each_entry_safe(term
, h
, terms
, list
)
2071 void parse_events_evlist_error(struct parse_events_evlist
*data
,
2072 int idx
, const char *str
)
2074 struct parse_events_error
*err
= data
->error
;
2079 err
->str
= strdup(str
);
2080 WARN_ONCE(!err
->str
, "WARNING: failed to allocate error string");
2084 * Return string contains valid config terms of an event.
2085 * @additional_terms: For terms such as PMU sysfs terms.
2087 char *parse_events_formats_error_string(char *additional_terms
)
2090 static const char *static_terms
= "config,config1,config2,name,"
2091 "period,freq,branch_type,time,"
2092 "call-graph,stack-size\n";
2095 if (additional_terms
) {
2096 if (!asprintf(&str
, "valid terms: %s,%s",
2097 additional_terms
, static_terms
))
2100 if (!asprintf(&str
, "valid terms: %s", static_terms
))