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499 lines
15 KiB
499 lines
15 KiB
/* 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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#include <perf/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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struct perf_pmu; |
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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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const char *metric_id; |
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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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/* for missing_features */ |
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struct perf_pmu *pmu; |
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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 perf_cpu_map__nr(evsel__cpus(evsel)); |
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} |
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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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#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__metric_id(const 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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void arch_evsel__fixup_new_cycles(struct perf_event_attr *attr); |
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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_map_idx); |
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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_map_idx); |
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int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx); |
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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__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_map_idx, int thread); |
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int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, 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_map_idx - 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_map_idx, int thread) |
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{ |
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return __evsel__read_on_cpu(evsel, cpu_map_idx, 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_map_idx - 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_scaled(struct evsel *evsel, int cpu_map_idx, int thread) |
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{ |
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return __evsel__read_on_cpu(evsel, cpu_map_idx, thread, true); |
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} |
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int evsel__parse_sample(struct evsel *evsel, union perf_event *event, |
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struct perf_sample *sample); |
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int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event, |
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u64 *timestamp); |
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static inline struct evsel *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 *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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* 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 evsel__is_group_leader(const struct evsel *evsel) |
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{ |
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return evsel->core.leader == &evsel->core; |
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} |
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/** |
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* 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 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 evsel__is_group_leader(evsel) && evsel->core.nr_members > 1; |
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} |
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bool evsel__is_function_event(struct evsel *evsel); |
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static inline bool evsel__is_bpf_output(struct evsel *evsel) |
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{ |
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return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT); |
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} |
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static inline bool evsel__is_clock(struct evsel *evsel) |
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{ |
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return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) || |
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evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK); |
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} |
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bool evsel__fallback(struct evsel *evsel, int err, char *msg, size_t msgsize); |
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int 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 evsel__group_idx(struct evsel *evsel) |
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{ |
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return evsel->core.idx - evsel->core.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)->core.leader == (&_leader->core); \ |
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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)->core.leader == (&_leader->core); \ |
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(_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node)) |
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static inline bool 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_branch_hw_idx(const struct evsel *evsel) |
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{ |
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return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX; |
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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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/* |
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* For reporting purposes, an evsel sample can have a recorded callchain |
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* or a callchain synthesized from AUX area data. |
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*/ |
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return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN || |
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evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN; |
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} |
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static inline bool evsel__has_br_stack(const struct evsel *evsel) |
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{ |
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/* |
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* For reporting purposes, an evsel sample can have a recorded branch |
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* stack or a branch stack synthesized from AUX area data. |
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*/ |
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return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK || |
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evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK; |
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} |
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static inline bool evsel__is_dummy_event(struct evsel *evsel) |
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{ |
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return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) && |
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(evsel->core.attr.config == PERF_COUNT_SW_DUMMY); |
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} |
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struct perf_env *evsel__env(struct evsel *evsel); |
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int evsel__store_ids(struct evsel *evsel, struct evlist *evlist); |
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void evsel__zero_per_pkg(struct evsel *evsel); |
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bool evsel__is_hybrid(struct evsel *evsel); |
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struct evsel *evsel__leader(struct evsel *evsel); |
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bool evsel__has_leader(struct evsel *evsel, struct evsel *leader); |
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bool evsel__is_leader(struct evsel *evsel); |
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void evsel__set_leader(struct evsel *evsel, struct evsel *leader); |
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int evsel__source_count(const struct evsel *evsel); |
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/* |
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* Macro to swap the bit-field postition and size. |
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* Used when, |
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* - dont need to swap the entire u64 && |
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* - when u64 has variable bit-field sizes && |
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* - when presented in a host endian which is different |
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* than the source endian of the perf.data file |
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*/ |
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#define bitfield_swap(src, pos, size) \ |
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((((src) >> (pos)) & ((1ull << (size)) - 1)) << (63 - ((pos) + (size) - 1))) |
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u64 evsel__bitfield_swap_branch_flags(u64 value); |
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#endif /* __PERF_EVSEL_H */
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