375 lines
12 KiB
C
375 lines
12 KiB
C
#ifndef __PERF_EVLIST_H
|
|
#define __PERF_EVLIST_H 1
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/refcount.h>
|
|
#include <linux/list.h>
|
|
#include <api/fd/array.h>
|
|
#include <stdio.h>
|
|
#include "../perf.h"
|
|
#include "event.h"
|
|
#include "evsel.h"
|
|
#include "util.h"
|
|
#include "auxtrace.h"
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
|
|
struct pollfd;
|
|
struct thread_map;
|
|
struct cpu_map;
|
|
struct record_opts;
|
|
|
|
#define PERF_EVLIST__HLIST_BITS 8
|
|
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
|
|
|
|
/**
|
|
* struct perf_mmap - perf's ring buffer mmap details
|
|
*
|
|
* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
|
|
*/
|
|
struct perf_mmap {
|
|
void *base;
|
|
int mask;
|
|
int fd;
|
|
refcount_t refcnt;
|
|
u64 prev;
|
|
struct auxtrace_mmap auxtrace_mmap;
|
|
char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
|
|
};
|
|
|
|
static inline size_t
|
|
perf_mmap__mmap_len(struct perf_mmap *map)
|
|
{
|
|
return map->mask + 1 + page_size;
|
|
}
|
|
|
|
/*
|
|
* State machine of bkw_mmap_state:
|
|
*
|
|
* .________________(forbid)_____________.
|
|
* | V
|
|
* NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
|
|
* ^ ^ | ^ |
|
|
* | |__(forbid)____/ |___(forbid)___/|
|
|
* | |
|
|
* \_________________(3)_______________/
|
|
*
|
|
* NOTREADY : Backward ring buffers are not ready
|
|
* RUNNING : Backward ring buffers are recording
|
|
* DATA_PENDING : We are required to collect data from backward ring buffers
|
|
* EMPTY : We have collected data from backward ring buffers.
|
|
*
|
|
* (0): Setup backward ring buffer
|
|
* (1): Pause ring buffers for reading
|
|
* (2): Read from ring buffers
|
|
* (3): Resume ring buffers for recording
|
|
*/
|
|
enum bkw_mmap_state {
|
|
BKW_MMAP_NOTREADY,
|
|
BKW_MMAP_RUNNING,
|
|
BKW_MMAP_DATA_PENDING,
|
|
BKW_MMAP_EMPTY,
|
|
};
|
|
|
|
struct perf_evlist {
|
|
struct list_head entries;
|
|
struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
|
|
int nr_entries;
|
|
int nr_groups;
|
|
int nr_mmaps;
|
|
bool overwrite;
|
|
bool enabled;
|
|
bool has_user_cpus;
|
|
size_t mmap_len;
|
|
int id_pos;
|
|
int is_pos;
|
|
u64 combined_sample_type;
|
|
enum bkw_mmap_state bkw_mmap_state;
|
|
struct {
|
|
int cork_fd;
|
|
pid_t pid;
|
|
} workload;
|
|
struct fdarray pollfd;
|
|
struct perf_mmap *mmap;
|
|
struct perf_mmap *backward_mmap;
|
|
struct thread_map *threads;
|
|
struct cpu_map *cpus;
|
|
struct perf_evsel *selected;
|
|
struct events_stats stats;
|
|
struct perf_env *env;
|
|
};
|
|
|
|
struct perf_evsel_str_handler {
|
|
const char *name;
|
|
void *handler;
|
|
};
|
|
|
|
struct perf_evlist *perf_evlist__new(void);
|
|
struct perf_evlist *perf_evlist__new_default(void);
|
|
struct perf_evlist *perf_evlist__new_dummy(void);
|
|
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
|
|
struct thread_map *threads);
|
|
void perf_evlist__exit(struct perf_evlist *evlist);
|
|
void perf_evlist__delete(struct perf_evlist *evlist);
|
|
|
|
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
|
|
void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
|
|
int perf_evlist__add_default(struct perf_evlist *evlist);
|
|
int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
|
|
struct perf_event_attr *attrs, size_t nr_attrs);
|
|
|
|
#define perf_evlist__add_default_attrs(evlist, array) \
|
|
__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
|
|
|
|
int perf_evlist__add_dummy(struct perf_evlist *evlist);
|
|
|
|
int perf_evlist__add_newtp(struct perf_evlist *evlist,
|
|
const char *sys, const char *name, void *handler);
|
|
|
|
void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
|
|
enum perf_event_sample_format bit);
|
|
void __perf_evlist__reset_sample_bit(struct perf_evlist *evlist,
|
|
enum perf_event_sample_format bit);
|
|
|
|
#define perf_evlist__set_sample_bit(evlist, bit) \
|
|
__perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
|
|
|
|
#define perf_evlist__reset_sample_bit(evlist, bit) \
|
|
__perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
|
|
|
|
int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
|
|
int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
|
|
int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
|
|
|
|
struct perf_evsel *
|
|
perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
|
|
|
|
struct perf_evsel *
|
|
perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
|
|
const char *name);
|
|
|
|
void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
|
|
int cpu, int thread, u64 id);
|
|
int perf_evlist__id_add_fd(struct perf_evlist *evlist,
|
|
struct perf_evsel *evsel,
|
|
int cpu, int thread, int fd);
|
|
|
|
int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
|
|
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
|
|
int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
|
|
|
|
int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
|
|
|
|
struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
|
|
struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
|
|
u64 id);
|
|
|
|
struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
|
|
|
|
void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist, enum bkw_mmap_state state);
|
|
|
|
union perf_event *perf_mmap__read_forward(struct perf_mmap *map, bool check_messup);
|
|
union perf_event *perf_mmap__read_backward(struct perf_mmap *map);
|
|
|
|
void perf_mmap__read_catchup(struct perf_mmap *md);
|
|
void perf_mmap__consume(struct perf_mmap *md, bool overwrite);
|
|
|
|
union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
|
|
|
|
union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist,
|
|
int idx);
|
|
union perf_event *perf_evlist__mmap_read_backward(struct perf_evlist *evlist,
|
|
int idx);
|
|
void perf_evlist__mmap_read_catchup(struct perf_evlist *evlist, int idx);
|
|
|
|
void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
|
|
|
|
int perf_evlist__open(struct perf_evlist *evlist);
|
|
void perf_evlist__close(struct perf_evlist *evlist);
|
|
|
|
struct callchain_param;
|
|
|
|
void perf_evlist__set_id_pos(struct perf_evlist *evlist);
|
|
bool perf_can_sample_identifier(void);
|
|
bool perf_can_record_switch_events(void);
|
|
bool perf_can_record_cpu_wide(void);
|
|
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
|
|
struct callchain_param *callchain);
|
|
int record_opts__config(struct record_opts *opts);
|
|
|
|
int perf_evlist__prepare_workload(struct perf_evlist *evlist,
|
|
struct target *target,
|
|
const char *argv[], bool pipe_output,
|
|
void (*exec_error)(int signo, siginfo_t *info,
|
|
void *ucontext));
|
|
int perf_evlist__start_workload(struct perf_evlist *evlist);
|
|
|
|
struct option;
|
|
|
|
int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
|
|
int perf_evlist__parse_mmap_pages(const struct option *opt,
|
|
const char *str,
|
|
int unset);
|
|
|
|
unsigned long perf_event_mlock_kb_in_pages(void);
|
|
|
|
int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
|
|
bool overwrite, unsigned int auxtrace_pages,
|
|
bool auxtrace_overwrite);
|
|
int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
|
|
bool overwrite);
|
|
void perf_evlist__munmap(struct perf_evlist *evlist);
|
|
|
|
size_t perf_evlist__mmap_size(unsigned long pages);
|
|
|
|
void perf_evlist__disable(struct perf_evlist *evlist);
|
|
void perf_evlist__enable(struct perf_evlist *evlist);
|
|
void perf_evlist__toggle_enable(struct perf_evlist *evlist);
|
|
|
|
int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
|
|
struct perf_evsel *evsel, int idx);
|
|
|
|
void perf_evlist__set_selected(struct perf_evlist *evlist,
|
|
struct perf_evsel *evsel);
|
|
|
|
void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
|
|
struct thread_map *threads);
|
|
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
|
|
int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
|
|
|
|
void __perf_evlist__set_leader(struct list_head *list);
|
|
void perf_evlist__set_leader(struct perf_evlist *evlist);
|
|
|
|
u64 perf_evlist__read_format(struct perf_evlist *evlist);
|
|
u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
|
|
u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
|
|
u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
|
|
bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
|
|
u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
|
|
|
|
int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
|
|
struct perf_sample *sample);
|
|
|
|
bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
|
|
bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
|
|
bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
|
|
|
|
void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
|
|
struct list_head *list);
|
|
|
|
static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
|
|
{
|
|
return list_entry(evlist->entries.next, struct perf_evsel, node);
|
|
}
|
|
|
|
static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
|
|
{
|
|
return list_entry(evlist->entries.prev, struct perf_evsel, node);
|
|
}
|
|
|
|
size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
|
|
|
|
int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
|
|
int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
|
|
|
|
static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
|
|
{
|
|
struct perf_event_mmap_page *pc = mm->base;
|
|
u64 head = ACCESS_ONCE(pc->data_head);
|
|
rmb();
|
|
return head;
|
|
}
|
|
|
|
static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
|
|
{
|
|
struct perf_event_mmap_page *pc = md->base;
|
|
|
|
/*
|
|
* ensure all reads are done before we write the tail out.
|
|
*/
|
|
mb();
|
|
pc->data_tail = tail;
|
|
}
|
|
|
|
bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
|
|
void perf_evlist__to_front(struct perf_evlist *evlist,
|
|
struct perf_evsel *move_evsel);
|
|
|
|
/**
|
|
* __evlist__for_each_entry - iterate thru all the evsels
|
|
* @list: list_head instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define __evlist__for_each_entry(list, evsel) \
|
|
list_for_each_entry(evsel, list, node)
|
|
|
|
/**
|
|
* evlist__for_each_entry - iterate thru all the evsels
|
|
* @evlist: evlist instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define evlist__for_each_entry(evlist, evsel) \
|
|
__evlist__for_each_entry(&(evlist)->entries, evsel)
|
|
|
|
/**
|
|
* __evlist__for_each_entry_continue - continue iteration thru all the evsels
|
|
* @list: list_head instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define __evlist__for_each_entry_continue(list, evsel) \
|
|
list_for_each_entry_continue(evsel, list, node)
|
|
|
|
/**
|
|
* evlist__for_each_entry_continue - continue iteration thru all the evsels
|
|
* @evlist: evlist instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define evlist__for_each_entry_continue(evlist, evsel) \
|
|
__evlist__for_each_entry_continue(&(evlist)->entries, evsel)
|
|
|
|
/**
|
|
* __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
|
|
* @list: list_head instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define __evlist__for_each_entry_reverse(list, evsel) \
|
|
list_for_each_entry_reverse(evsel, list, node)
|
|
|
|
/**
|
|
* evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
|
|
* @evlist: evlist instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define evlist__for_each_entry_reverse(evlist, evsel) \
|
|
__evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
|
|
|
|
/**
|
|
* __evlist__for_each_entry_safe - safely iterate thru all the evsels
|
|
* @list: list_head instance to iterate
|
|
* @tmp: struct evsel temp iterator
|
|
* @evsel: struct evsel iterator
|
|
*/
|
|
#define __evlist__for_each_entry_safe(list, tmp, evsel) \
|
|
list_for_each_entry_safe(evsel, tmp, list, node)
|
|
|
|
/**
|
|
* evlist__for_each_entry_safe - safely iterate thru all the evsels
|
|
* @evlist: evlist instance to iterate
|
|
* @evsel: struct evsel iterator
|
|
* @tmp: struct evsel temp iterator
|
|
*/
|
|
#define evlist__for_each_entry_safe(evlist, tmp, evsel) \
|
|
__evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
|
|
|
|
void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
|
|
struct perf_evsel *tracking_evsel);
|
|
|
|
void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
|
|
|
|
struct perf_evsel *
|
|
perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
|
|
|
|
struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
|
|
union perf_event *event);
|
|
#endif /* __PERF_EVLIST_H */
|