509 lines
14 KiB
C
509 lines
14 KiB
C
/* 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 <stddef.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 <internal/xyarray.h>
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#include "symbol_conf.h"
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#include "cpumap.h"
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#include "counts.h"
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struct evsel;
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/*
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* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
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* more than one entry in the evlist.
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*/
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struct perf_sample_id {
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struct hlist_node node;
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u64 id;
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struct evsel *evsel;
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/*
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* 'idx' will be used for AUX area sampling. A sample will have AUX area
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* data that will be queued for decoding, where there are separate
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* queues for each CPU (per-cpu tracing) or task (per-thread tracing).
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* The sample ID can be used to lookup 'idx' which is effectively the
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* queue number.
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*/
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int idx;
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int cpu;
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pid_t tid;
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/* Holds total ID period value for PERF_SAMPLE_READ processing. */
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u64 period;
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};
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struct cgroup;
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/*
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* The 'struct perf_evsel_config_term' is used to pass event
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* specific configuration data to perf_evsel__config routine.
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* It is allocated within event parsing and attached to
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* perf_evsel::config_terms list head.
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*/
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enum term_type {
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PERF_EVSEL__CONFIG_TERM_PERIOD,
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PERF_EVSEL__CONFIG_TERM_FREQ,
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PERF_EVSEL__CONFIG_TERM_TIME,
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PERF_EVSEL__CONFIG_TERM_CALLGRAPH,
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PERF_EVSEL__CONFIG_TERM_STACK_USER,
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PERF_EVSEL__CONFIG_TERM_INHERIT,
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PERF_EVSEL__CONFIG_TERM_MAX_STACK,
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PERF_EVSEL__CONFIG_TERM_MAX_EVENTS,
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PERF_EVSEL__CONFIG_TERM_OVERWRITE,
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PERF_EVSEL__CONFIG_TERM_DRV_CFG,
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PERF_EVSEL__CONFIG_TERM_BRANCH,
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PERF_EVSEL__CONFIG_TERM_PERCORE,
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PERF_EVSEL__CONFIG_TERM_AUX_OUTPUT,
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};
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struct perf_evsel_config_term {
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struct list_head list;
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enum term_type type;
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union {
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u64 period;
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u64 freq;
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bool time;
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char *callgraph;
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char *drv_cfg;
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u64 stack_user;
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int max_stack;
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bool inherit;
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bool overwrite;
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char *branch;
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unsigned long max_events;
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bool percore;
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bool aux_output;
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} val;
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bool weak;
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};
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struct perf_stat_evsel;
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typedef int (perf_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 bpf_object;
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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 sample_event
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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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char *filter;
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struct xyarray *sample_id;
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u64 *id;
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struct perf_counts *counts;
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struct perf_counts *prev_raw_counts;
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int idx;
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u32 ids;
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unsigned long max_events;
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unsigned long nr_events_printed;
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char *name;
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double scale;
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const char *unit;
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struct tep_event *tp_format;
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off_t id_offset;
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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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struct cgroup *cgrp;
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void *handler;
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unsigned int sample_size;
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int id_pos;
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int is_pos;
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enum perf_tool_event tool_event;
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bool uniquified_name;
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bool snapshot;
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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 system_wide;
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bool tracking;
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bool per_pkg;
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bool precise_max;
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bool ignore_missing_thread;
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bool forced_leader;
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bool use_uncore_alias;
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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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unsigned long *per_pkg_mask;
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struct evsel *leader;
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char *group_name;
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bool cmdline_group_boundary;
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struct list_head config_terms;
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struct bpf_object *bpf_obj;
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int bpf_fd;
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bool auto_merge_stats;
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bool merged_stat;
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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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bool collect_stat;
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bool weak_group;
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bool percore;
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const char *pmu_name;
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struct {
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perf_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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union u64_swap {
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u64 val64;
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u32 val32[2];
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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_event;
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bool aux_output;
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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 target;
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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 perf_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 perf_evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
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struct perf_counts_values *count);
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int perf_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 evsel *perf_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 perf_evsel__new_idx(attr, 0);
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}
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struct evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
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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 *perf_evsel__newtp(const char *sys, const char *name)
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{
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return perf_evsel__newtp_idx(sys, name, 0);
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}
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struct evsel *perf_evsel__new_cycles(bool precise);
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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 perf_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 perf_evsel__config(struct evsel *evsel,
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struct record_opts *opts,
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struct callchain_param *callchain);
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void perf_evsel__config_callchain(struct evsel *evsel,
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struct record_opts *opts,
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struct callchain_param *callchain);
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int __perf_evsel__sample_size(u64 sample_type);
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void perf_evsel__calc_id_pos(struct evsel *evsel);
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bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
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#define PERF_EVSEL__MAX_ALIASES 8
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extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
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[PERF_EVSEL__MAX_ALIASES];
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extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
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[PERF_EVSEL__MAX_ALIASES];
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extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
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[PERF_EVSEL__MAX_ALIASES];
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extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
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extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
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int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
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char *bf, size_t size);
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const char *perf_evsel__name(struct evsel *evsel);
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const char *perf_evsel__group_name(struct evsel *evsel);
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int perf_evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
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int perf_evsel__alloc_id(struct evsel *evsel, int ncpus, int nthreads);
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void __perf_evsel__set_sample_bit(struct evsel *evsel,
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enum perf_event_sample_format bit);
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void __perf_evsel__reset_sample_bit(struct evsel *evsel,
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enum perf_event_sample_format bit);
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#define perf_evsel__set_sample_bit(evsel, bit) \
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__perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
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#define perf_evsel__reset_sample_bit(evsel, bit) \
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__perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
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void perf_evsel__set_sample_id(struct evsel *evsel,
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bool use_sample_identifier);
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int perf_evsel__set_filter(struct evsel *evsel, const char *filter);
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int perf_evsel__append_tp_filter(struct evsel *evsel, const char *filter);
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int perf_evsel__append_addr_filter(struct evsel *evsel,
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const char *filter);
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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 perf_evsel__open_per_cpu(struct evsel *evsel,
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struct perf_cpu_map *cpus);
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int perf_evsel__open_per_thread(struct evsel *evsel,
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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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struct perf_sample;
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void *perf_evsel__rawptr(struct evsel *evsel, struct perf_sample *sample,
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const char *name);
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u64 perf_evsel__intval(struct evsel *evsel, struct perf_sample *sample,
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const char *name);
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static inline char *perf_evsel__strval(struct evsel *evsel,
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struct perf_sample *sample,
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const char *name)
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{
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return perf_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 *perf_evsel__field(struct evsel *evsel, const char *name);
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#define perf_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 perf_evsel__match2(struct evsel *e1,
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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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#define perf_evsel__cmp(a, b) \
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((a) && \
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(b) && \
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(a)->core.attr.type == (b)->core.attr.type && \
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(a)->core.attr.config == (b)->core.attr.config)
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int perf_evsel__read_counter(struct evsel *evsel, int cpu, int thread);
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int __perf_evsel__read_on_cpu(struct evsel *evsel,
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int cpu, int thread, bool scale);
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/**
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* perf_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 perf_evsel__read_on_cpu(struct evsel *evsel,
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int cpu, int thread)
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{
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return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
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}
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/**
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* perf_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
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*/
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static inline int perf_evsel__read_on_cpu_scaled(struct evsel *evsel,
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int cpu, int thread)
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{
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return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
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}
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int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event,
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struct perf_sample *sample);
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int perf_evsel__parse_sample_timestamp(struct evsel *evsel,
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union perf_event *event,
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u64 *timestamp);
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static inline struct evsel *perf_evsel__next(struct evsel *evsel)
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{
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return list_entry(evsel->core.node.next, struct evsel, core.node);
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}
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static inline struct evsel *perf_evsel__prev(struct evsel *evsel)
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{
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return list_entry(evsel->core.node.prev, struct evsel, core.node);
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}
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/**
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* perf_evsel__is_group_leader - Return whether given evsel is a leader event
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*
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* @evsel - evsel selector to be tested
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*
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* Return %true if @evsel is a group leader or a stand-alone event
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*/
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static inline bool perf_evsel__is_group_leader(const struct evsel *evsel)
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{
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return evsel->leader == evsel;
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}
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/**
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* perf_evsel__is_group_event - Return whether given evsel is a group event
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*
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* @evsel - evsel selector to be tested
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*
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* Return %true iff event group view is enabled and @evsel is a actual group
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* leader which has other members in the group
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*/
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static inline bool perf_evsel__is_group_event(struct evsel *evsel)
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{
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if (!symbol_conf.event_group)
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return false;
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return perf_evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
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}
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bool perf_evsel__is_function_event(struct evsel *evsel);
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static inline bool perf_evsel__is_bpf_output(struct evsel *evsel)
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{
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return perf_evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
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}
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static inline bool perf_evsel__is_clock(struct evsel *evsel)
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{
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return perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
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perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
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}
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struct perf_attr_details {
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bool freq;
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bool verbose;
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bool event_group;
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bool force;
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bool trace_fields;
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};
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int perf_evsel__fprintf(struct evsel *evsel,
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struct perf_attr_details *details, FILE *fp);
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#define EVSEL__PRINT_IP (1<<0)
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#define EVSEL__PRINT_SYM (1<<1)
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#define EVSEL__PRINT_DSO (1<<2)
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#define EVSEL__PRINT_SYMOFFSET (1<<3)
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#define EVSEL__PRINT_ONELINE (1<<4)
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#define EVSEL__PRINT_SRCLINE (1<<5)
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#define EVSEL__PRINT_UNKNOWN_AS_ADDR (1<<6)
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#define EVSEL__PRINT_CALLCHAIN_ARROW (1<<7)
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#define EVSEL__PRINT_SKIP_IGNORED (1<<8)
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struct callchain_cursor;
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int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
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unsigned int print_opts,
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struct callchain_cursor *cursor, FILE *fp);
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int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
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int left_alignment, unsigned int print_opts,
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struct callchain_cursor *cursor, FILE *fp);
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bool perf_evsel__fallback(struct evsel *evsel, int err,
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char *msg, size_t msgsize);
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int perf_evsel__open_strerror(struct evsel *evsel, struct target *target,
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int err, char *msg, size_t size);
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static inline int perf_evsel__group_idx(struct evsel *evsel)
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{
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return evsel->idx - evsel->leader->idx;
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}
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/* Iterates group WITHOUT the leader. */
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#define for_each_group_member(_evsel, _leader) \
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for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
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(_evsel) && (_evsel)->leader == (_leader); \
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(_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
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/* Iterates group WITH the leader. */
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#define for_each_group_evsel(_evsel, _leader) \
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for ((_evsel) = _leader; \
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(_evsel) && (_evsel)->leader == (_leader); \
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(_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
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static inline bool perf_evsel__has_branch_callstack(const struct evsel *evsel)
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{
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return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
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}
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static inline bool evsel__has_callchain(const struct evsel *evsel)
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{
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return (evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN) != 0;
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}
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typedef int (*attr__fprintf_f)(FILE *, const char *, const char *, void *);
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int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
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attr__fprintf_f attr__fprintf, void *priv);
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struct perf_env *perf_evsel__env(struct evsel *evsel);
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int perf_evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
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#endif /* __PERF_EVSEL_H */
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