490 lines
15 KiB
C
490 lines
15 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_EVSEL_H
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#define __PERF_EVSEL_H 1
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#include <linux/list.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <linux/perf_event.h>
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#include <linux/types.h>
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#include <internal/evsel.h>
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#include <perf/evsel.h>
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#include "symbol_conf.h"
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#include <internal/cpumap.h>
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struct bpf_object;
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struct cgroup;
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struct perf_counts;
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struct perf_stat_evsel;
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union perf_event;
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struct bpf_counter_ops;
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struct target;
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struct hashmap;
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struct bperf_leader_bpf;
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struct bperf_follower_bpf;
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typedef int (evsel__sb_cb_t)(union perf_event *event, void *data);
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enum perf_tool_event {
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PERF_TOOL_NONE = 0,
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PERF_TOOL_DURATION_TIME = 1,
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};
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/** struct evsel - event selector
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*
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* @evlist - evlist this evsel is in, if it is in one.
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* @core - libperf evsel object
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* @name - Can be set to retain the original event name passed by the user,
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* so that when showing results in tools such as 'perf stat', we
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* show the name used, not some alias.
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* @id_pos: the position of the event id (PERF_SAMPLE_ID or
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* PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
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* struct perf_record_sample
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* @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
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* PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
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* is used there is an id sample appended to non-sample events
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* @priv: And what is in its containing unnamed union are tool specific
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*/
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struct evsel {
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struct perf_evsel core;
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struct evlist *evlist;
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off_t id_offset;
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int id_pos;
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int is_pos;
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unsigned int sample_size;
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/*
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* These fields can be set in the parse-events code or similar.
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* Please check evsel__clone() to copy them properly so that
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* they can be released properly.
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*/
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struct {
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char *name;
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char *group_name;
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const char *pmu_name;
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struct tep_event *tp_format;
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char *filter;
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unsigned long max_events;
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double scale;
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const char *unit;
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struct cgroup *cgrp;
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enum perf_tool_event tool_event;
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/* parse modifier helper */
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int exclude_GH;
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int sample_read;
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bool snapshot;
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bool per_pkg;
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bool percore;
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bool precise_max;
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bool use_uncore_alias;
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bool is_libpfm_event;
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bool auto_merge_stats;
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bool collect_stat;
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bool weak_group;
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bool bpf_counter;
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bool use_config_name;
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int bpf_fd;
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struct bpf_object *bpf_obj;
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struct list_head config_terms;
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};
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/*
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* metric fields are similar, but needs more care as they can have
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* references to other metric (evsel).
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*/
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const char * metric_expr;
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const char * metric_name;
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struct evsel **metric_events;
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struct evsel *metric_leader;
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void *handler;
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struct perf_counts *counts;
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struct perf_counts *prev_raw_counts;
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unsigned long nr_events_printed;
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struct perf_stat_evsel *stats;
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void *priv;
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u64 db_id;
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bool uniquified_name;
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bool supported;
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bool needs_swap;
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bool disabled;
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bool no_aux_samples;
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bool immediate;
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bool tracking;
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bool ignore_missing_thread;
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bool forced_leader;
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bool cmdline_group_boundary;
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bool merged_stat;
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bool reset_group;
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bool errored;
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struct hashmap *per_pkg_mask;
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int err;
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struct {
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evsel__sb_cb_t *cb;
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void *data;
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} side_band;
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/*
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* For reporting purposes, an evsel sample can have a callchain
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* synthesized from AUX area data. Keep track of synthesized sample
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* types here. Note, the recorded sample_type cannot be changed because
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* it is needed to continue to parse events.
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* See also evsel__has_callchain().
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*/
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__u64 synth_sample_type;
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/*
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* bpf_counter_ops serves two use cases:
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* 1. perf-stat -b counting events used byBPF programs
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* 2. perf-stat --use-bpf use BPF programs to aggregate counts
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*/
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struct bpf_counter_ops *bpf_counter_ops;
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/* for perf-stat -b */
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struct list_head bpf_counter_list;
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/* for perf-stat --use-bpf */
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int bperf_leader_prog_fd;
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int bperf_leader_link_fd;
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union {
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struct bperf_leader_bpf *leader_skel;
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struct bperf_follower_bpf *follower_skel;
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};
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unsigned long open_flags;
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int precise_ip_original;
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};
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struct perf_missing_features {
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bool sample_id_all;
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bool exclude_guest;
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bool mmap2;
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bool cloexec;
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bool clockid;
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bool clockid_wrong;
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bool lbr_flags;
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bool write_backward;
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bool group_read;
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bool ksymbol;
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bool bpf;
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bool aux_output;
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bool branch_hw_idx;
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bool cgroup;
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bool data_page_size;
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bool code_page_size;
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bool weight_struct;
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};
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extern struct perf_missing_features perf_missing_features;
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struct perf_cpu_map;
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struct thread_map;
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struct record_opts;
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static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
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{
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return perf_evsel__cpus(&evsel->core);
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}
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static inline int evsel__nr_cpus(struct evsel *evsel)
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{
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return evsel__cpus(evsel)->nr;
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}
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void perf_counts_values__scale(struct perf_counts_values *count,
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bool scale, s8 *pscaled);
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void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
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struct perf_counts_values *count);
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int evsel__object_config(size_t object_size,
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int (*init)(struct evsel *evsel),
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void (*fini)(struct evsel *evsel));
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struct perf_pmu *evsel__find_pmu(struct evsel *evsel);
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bool evsel__is_aux_event(struct evsel *evsel);
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struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);
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static inline struct evsel *evsel__new(struct perf_event_attr *attr)
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{
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return evsel__new_idx(attr, 0);
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}
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struct evsel *evsel__clone(struct evsel *orig);
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struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx);
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int copy_config_terms(struct list_head *dst, struct list_head *src);
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void free_config_terms(struct list_head *config_terms);
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/*
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* Returns pointer with encoded error via <linux/err.h> interface.
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*/
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static inline struct evsel *evsel__newtp(const char *sys, const char *name)
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{
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return evsel__newtp_idx(sys, name, 0);
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}
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struct evsel *evsel__new_cycles(bool precise, __u32 type, __u64 config);
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struct tep_event *event_format__new(const char *sys, const char *name);
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void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
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void evsel__exit(struct evsel *evsel);
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void evsel__delete(struct evsel *evsel);
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struct callchain_param;
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void evsel__config(struct evsel *evsel, struct record_opts *opts,
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struct callchain_param *callchain);
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void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
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struct callchain_param *callchain);
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int __evsel__sample_size(u64 sample_type);
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void evsel__calc_id_pos(struct evsel *evsel);
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bool evsel__is_cache_op_valid(u8 type, u8 op);
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static inline bool evsel__is_bpf(struct evsel *evsel)
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{
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return evsel->bpf_counter_ops != NULL;
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}
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static inline bool evsel__is_bperf(struct evsel *evsel)
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{
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return evsel->bpf_counter_ops != NULL && list_empty(&evsel->bpf_counter_list);
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}
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#define EVSEL__MAX_ALIASES 8
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extern const char *evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES];
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extern const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES];
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extern const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
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extern const char *evsel__hw_names[PERF_COUNT_HW_MAX];
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extern const char *evsel__sw_names[PERF_COUNT_SW_MAX];
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extern char *evsel__bpf_counter_events;
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bool evsel__match_bpf_counter_events(const char *name);
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int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
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const char *evsel__name(struct evsel *evsel);
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const char *evsel__group_name(struct evsel *evsel);
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int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
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void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
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void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
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#define evsel__set_sample_bit(evsel, bit) \
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__evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
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#define evsel__reset_sample_bit(evsel, bit) \
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__evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
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void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
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void arch_evsel__set_sample_weight(struct evsel *evsel);
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int evsel__set_filter(struct evsel *evsel, const char *filter);
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int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
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int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
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int evsel__enable_cpu(struct evsel *evsel, int cpu);
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int evsel__enable(struct evsel *evsel);
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int evsel__disable(struct evsel *evsel);
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int evsel__disable_cpu(struct evsel *evsel, int cpu);
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int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu);
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int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
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int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
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struct perf_thread_map *threads);
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void evsel__close(struct evsel *evsel);
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int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
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struct perf_thread_map *threads);
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bool evsel__detect_missing_features(struct evsel *evsel);
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enum rlimit_action { NO_CHANGE, SET_TO_MAX, INCREASED_MAX };
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bool evsel__increase_rlimit(enum rlimit_action *set_rlimit);
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bool evsel__ignore_missing_thread(struct evsel *evsel,
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int nr_cpus, int cpu,
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struct perf_thread_map *threads,
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int thread, int err);
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bool evsel__precise_ip_fallback(struct evsel *evsel);
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struct perf_sample;
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void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
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u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
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static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
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{
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return evsel__rawptr(evsel, sample, name);
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}
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struct tep_format_field;
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u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
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struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
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#define evsel__match(evsel, t, c) \
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(evsel->core.attr.type == PERF_TYPE_##t && \
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evsel->core.attr.config == PERF_COUNT_##c)
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static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
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{
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return (e1->core.attr.type == e2->core.attr.type) &&
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(e1->core.attr.config == e2->core.attr.config);
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}
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int evsel__read_counter(struct evsel *evsel, int cpu, int thread);
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int __evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread, bool scale);
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/**
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* evsel__read_on_cpu - Read out the results on a CPU and thread
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*
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* @evsel - event selector to read value
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* @cpu - CPU of interest
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* @thread - thread of interest
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*/
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static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread)
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{
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return __evsel__read_on_cpu(evsel, cpu, thread, false);
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}
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/**
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* evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
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*
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* @evsel - event selector to read value
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* @cpu - CPU of interest
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* @thread - thread of interest
|
||
|
|
*/
|
||
|
|
static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu, int thread)
|
||
|
|
{
|
||
|
|
return __evsel__read_on_cpu(evsel, cpu, thread, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
|
||
|
|
struct perf_sample *sample);
|
||
|
|
|
||
|
|
int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event,
|
||
|
|
u64 *timestamp);
|
||
|
|
|
||
|
|
static inline struct evsel *evsel__next(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return list_entry(evsel->core.node.next, struct evsel, core.node);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct evsel *evsel__prev(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return list_entry(evsel->core.node.prev, struct evsel, core.node);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* evsel__is_group_leader - Return whether given evsel is a leader event
|
||
|
|
*
|
||
|
|
* @evsel - evsel selector to be tested
|
||
|
|
*
|
||
|
|
* Return %true if @evsel is a group leader or a stand-alone event
|
||
|
|
*/
|
||
|
|
static inline bool evsel__is_group_leader(const struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return evsel->core.leader == &evsel->core;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* evsel__is_group_event - Return whether given evsel is a group event
|
||
|
|
*
|
||
|
|
* @evsel - evsel selector to be tested
|
||
|
|
*
|
||
|
|
* Return %true iff event group view is enabled and @evsel is a actual group
|
||
|
|
* leader which has other members in the group
|
||
|
|
*/
|
||
|
|
static inline bool evsel__is_group_event(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
if (!symbol_conf.event_group)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool evsel__is_function_event(struct evsel *evsel);
|
||
|
|
|
||
|
|
static inline bool evsel__is_bpf_output(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool evsel__is_clock(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
|
||
|
|
evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool evsel__fallback(struct evsel *evsel, int err, char *msg, size_t msgsize);
|
||
|
|
int evsel__open_strerror(struct evsel *evsel, struct target *target,
|
||
|
|
int err, char *msg, size_t size);
|
||
|
|
|
||
|
|
static inline int evsel__group_idx(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return evsel->core.idx - evsel->core.leader->idx;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Iterates group WITHOUT the leader. */
|
||
|
|
#define for_each_group_member(_evsel, _leader) \
|
||
|
|
for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
|
||
|
|
(_evsel) && (_evsel)->core.leader == (&_leader->core); \
|
||
|
|
(_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
|
||
|
|
|
||
|
|
/* Iterates group WITH the leader. */
|
||
|
|
#define for_each_group_evsel(_evsel, _leader) \
|
||
|
|
for ((_evsel) = _leader; \
|
||
|
|
(_evsel) && (_evsel)->core.leader == (&_leader->core); \
|
||
|
|
(_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
|
||
|
|
|
||
|
|
static inline bool evsel__has_branch_callstack(const struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool evsel__has_branch_hw_idx(const struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool evsel__has_callchain(const struct evsel *evsel)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* For reporting purposes, an evsel sample can have a recorded callchain
|
||
|
|
* or a callchain synthesized from AUX area data.
|
||
|
|
*/
|
||
|
|
return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
|
||
|
|
evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool evsel__has_br_stack(const struct evsel *evsel)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* For reporting purposes, an evsel sample can have a recorded branch
|
||
|
|
* stack or a branch stack synthesized from AUX area data.
|
||
|
|
*/
|
||
|
|
return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK ||
|
||
|
|
evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool evsel__is_dummy_event(struct evsel *evsel)
|
||
|
|
{
|
||
|
|
return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) &&
|
||
|
|
(evsel->core.attr.config == PERF_COUNT_SW_DUMMY);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct perf_env *evsel__env(struct evsel *evsel);
|
||
|
|
|
||
|
|
int evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
|
||
|
|
|
||
|
|
void evsel__zero_per_pkg(struct evsel *evsel);
|
||
|
|
bool evsel__is_hybrid(struct evsel *evsel);
|
||
|
|
struct evsel *evsel__leader(struct evsel *evsel);
|
||
|
|
bool evsel__has_leader(struct evsel *evsel, struct evsel *leader);
|
||
|
|
bool evsel__is_leader(struct evsel *evsel);
|
||
|
|
void evsel__set_leader(struct evsel *evsel, struct evsel *leader);
|
||
|
|
#endif /* __PERF_EVSEL_H */
|