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-rw-r--r--tools/perf/util/evsel.h558
1 files changed, 558 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
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+++ b/tools/perf/util/evsel.h
@@ -0,0 +1,558 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __PERF_EVSEL_H
+#define __PERF_EVSEL_H 1
+
+#include <linux/list.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <linux/perf_event.h>
+#include <linux/types.h>
+#include <internal/evsel.h>
+#include <perf/evsel.h>
+#include "symbol_conf.h"
+#include "pmus.h"
+
+struct bpf_object;
+struct cgroup;
+struct perf_counts;
+struct perf_stat_evsel;
+union perf_event;
+struct bpf_counter_ops;
+struct target;
+struct hashmap;
+struct bperf_leader_bpf;
+struct bperf_follower_bpf;
+struct perf_pmu;
+
+typedef int (evsel__sb_cb_t)(union perf_event *event, void *data);
+
+enum perf_tool_event {
+ PERF_TOOL_NONE = 0,
+ PERF_TOOL_DURATION_TIME = 1,
+ PERF_TOOL_USER_TIME = 2,
+ PERF_TOOL_SYSTEM_TIME = 3,
+
+ PERF_TOOL_MAX,
+};
+
+const char *perf_tool_event__to_str(enum perf_tool_event ev);
+enum perf_tool_event perf_tool_event__from_str(const char *str);
+
+#define perf_tool_event__for_each_event(ev) \
+ for ((ev) = PERF_TOOL_DURATION_TIME; (ev) < PERF_TOOL_MAX; ev++)
+
+/** struct evsel - event selector
+ *
+ * @evlist - evlist this evsel is in, if it is in one.
+ * @core - libperf evsel object
+ * @name - Can be set to retain the original event name passed by the user,
+ * so that when showing results in tools such as 'perf stat', we
+ * show the name used, not some alias.
+ * @id_pos: the position of the event id (PERF_SAMPLE_ID or
+ * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
+ * struct perf_record_sample
+ * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
+ * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
+ * is used there is an id sample appended to non-sample events
+ * @priv: And what is in its containing unnamed union are tool specific
+ */
+struct evsel {
+ struct perf_evsel core;
+ struct evlist *evlist;
+ off_t id_offset;
+ int id_pos;
+ int is_pos;
+ unsigned int sample_size;
+
+ /*
+ * These fields can be set in the parse-events code or similar.
+ * Please check evsel__clone() to copy them properly so that
+ * they can be released properly.
+ */
+ struct {
+ char *name;
+ char *group_name;
+ const char *pmu_name;
+ const char *group_pmu_name;
+#ifdef HAVE_LIBTRACEEVENT
+ struct tep_event *tp_format;
+#endif
+ char *filter;
+ unsigned long max_events;
+ double scale;
+ const char *unit;
+ struct cgroup *cgrp;
+ const char *metric_id;
+ enum perf_tool_event tool_event;
+ /* parse modifier helper */
+ int exclude_GH;
+ int sample_read;
+ bool snapshot;
+ bool per_pkg;
+ bool percore;
+ bool precise_max;
+ bool is_libpfm_event;
+ bool auto_merge_stats;
+ bool collect_stat;
+ bool weak_group;
+ bool bpf_counter;
+ bool use_config_name;
+ bool skippable;
+ int bpf_fd;
+ struct bpf_object *bpf_obj;
+ struct list_head config_terms;
+ };
+
+ /*
+ * metric fields are similar, but needs more care as they can have
+ * references to other metric (evsel).
+ */
+ struct evsel **metric_events;
+ struct evsel *metric_leader;
+
+ void *handler;
+ struct perf_counts *counts;
+ struct perf_counts *prev_raw_counts;
+ unsigned long nr_events_printed;
+ struct perf_stat_evsel *stats;
+ void *priv;
+ u64 db_id;
+ bool uniquified_name;
+ bool supported;
+ bool needs_swap;
+ bool disabled;
+ bool no_aux_samples;
+ bool immediate;
+ bool tracking;
+ bool ignore_missing_thread;
+ bool forced_leader;
+ bool cmdline_group_boundary;
+ bool merged_stat;
+ bool reset_group;
+ bool errored;
+ bool needs_auxtrace_mmap;
+ bool default_metricgroup; /* A member of the Default metricgroup */
+ struct hashmap *per_pkg_mask;
+ int err;
+ struct {
+ evsel__sb_cb_t *cb;
+ void *data;
+ } side_band;
+ /*
+ * For reporting purposes, an evsel sample can have a callchain
+ * synthesized from AUX area data. Keep track of synthesized sample
+ * types here. Note, the recorded sample_type cannot be changed because
+ * it is needed to continue to parse events.
+ * See also evsel__has_callchain().
+ */
+ __u64 synth_sample_type;
+
+ /*
+ * bpf_counter_ops serves two use cases:
+ * 1. perf-stat -b counting events used byBPF programs
+ * 2. perf-stat --use-bpf use BPF programs to aggregate counts
+ */
+ struct bpf_counter_ops *bpf_counter_ops;
+
+ struct list_head bpf_counter_list; /* for perf-stat -b */
+ struct list_head bpf_filters; /* for perf-record --filter */
+
+ /* for perf-stat --use-bpf */
+ int bperf_leader_prog_fd;
+ int bperf_leader_link_fd;
+ union {
+ struct bperf_leader_bpf *leader_skel;
+ struct bperf_follower_bpf *follower_skel;
+ void *bpf_skel;
+ };
+ unsigned long open_flags;
+ int precise_ip_original;
+
+ /* for missing_features */
+ struct perf_pmu *pmu;
+};
+
+struct perf_missing_features {
+ bool sample_id_all;
+ bool exclude_guest;
+ bool mmap2;
+ bool cloexec;
+ bool clockid;
+ bool clockid_wrong;
+ bool lbr_flags;
+ bool write_backward;
+ bool group_read;
+ bool ksymbol;
+ bool bpf;
+ bool aux_output;
+ bool branch_hw_idx;
+ bool cgroup;
+ bool data_page_size;
+ bool code_page_size;
+ bool weight_struct;
+ bool read_lost;
+};
+
+extern struct perf_missing_features perf_missing_features;
+
+struct perf_cpu_map;
+struct thread_map;
+struct record_opts;
+
+static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
+{
+ return perf_evsel__cpus(&evsel->core);
+}
+
+static inline int evsel__nr_cpus(struct evsel *evsel)
+{
+ return perf_cpu_map__nr(evsel__cpus(evsel));
+}
+
+void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
+ struct perf_counts_values *count);
+
+int evsel__object_config(size_t object_size,
+ int (*init)(struct evsel *evsel),
+ void (*fini)(struct evsel *evsel));
+
+struct perf_pmu *evsel__find_pmu(const struct evsel *evsel);
+bool evsel__is_aux_event(const struct evsel *evsel);
+
+struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);
+
+static inline struct evsel *evsel__new(struct perf_event_attr *attr)
+{
+ return evsel__new_idx(attr, 0);
+}
+
+struct evsel *evsel__clone(struct evsel *orig);
+
+int copy_config_terms(struct list_head *dst, struct list_head *src);
+void free_config_terms(struct list_head *config_terms);
+
+
+#ifdef HAVE_LIBTRACEEVENT
+struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx);
+
+/*
+ * Returns pointer with encoded error via <linux/err.h> interface.
+ */
+static inline struct evsel *evsel__newtp(const char *sys, const char *name)
+{
+ return evsel__newtp_idx(sys, name, 0);
+}
+#endif
+
+#ifdef HAVE_LIBTRACEEVENT
+struct tep_event *event_format__new(const char *sys, const char *name);
+#endif
+
+void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
+void evsel__exit(struct evsel *evsel);
+void evsel__delete(struct evsel *evsel);
+
+struct callchain_param;
+
+void evsel__config(struct evsel *evsel, struct record_opts *opts,
+ struct callchain_param *callchain);
+void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
+ struct callchain_param *callchain);
+
+int __evsel__sample_size(u64 sample_type);
+void evsel__calc_id_pos(struct evsel *evsel);
+
+bool evsel__is_cache_op_valid(u8 type, u8 op);
+
+static inline bool evsel__is_bpf(struct evsel *evsel)
+{
+ return evsel->bpf_counter_ops != NULL;
+}
+
+static inline bool evsel__is_bperf(struct evsel *evsel)
+{
+ return evsel->bpf_counter_ops != NULL && list_empty(&evsel->bpf_counter_list);
+}
+
+#define EVSEL__MAX_ALIASES 8
+
+extern const char *const evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES];
+extern const char *const evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES];
+extern const char *const evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
+extern const char *const evsel__hw_names[PERF_COUNT_HW_MAX];
+extern const char *const evsel__sw_names[PERF_COUNT_SW_MAX];
+extern char *evsel__bpf_counter_events;
+bool evsel__match_bpf_counter_events(const char *name);
+int arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size);
+
+int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
+const char *evsel__name(struct evsel *evsel);
+bool evsel__name_is(struct evsel *evsel, const char *name);
+const char *evsel__metric_id(const struct evsel *evsel);
+
+static inline bool evsel__is_tool(const struct evsel *evsel)
+{
+ return evsel->tool_event != PERF_TOOL_NONE;
+}
+
+const char *evsel__group_name(struct evsel *evsel);
+int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
+
+void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
+void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
+
+#define evsel__set_sample_bit(evsel, bit) \
+ __evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
+
+#define evsel__reset_sample_bit(evsel, bit) \
+ __evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
+
+void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
+
+void arch_evsel__set_sample_weight(struct evsel *evsel);
+void arch__post_evsel_config(struct evsel *evsel, struct perf_event_attr *attr);
+int arch_evsel__open_strerror(struct evsel *evsel, char *msg, size_t size);
+
+int evsel__set_filter(struct evsel *evsel, const char *filter);
+int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
+int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
+int evsel__enable_cpu(struct evsel *evsel, int cpu_map_idx);
+int evsel__enable(struct evsel *evsel);
+int evsel__disable(struct evsel *evsel);
+int evsel__disable_cpu(struct evsel *evsel, int cpu_map_idx);
+
+int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx);
+int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
+int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
+ struct perf_thread_map *threads);
+void evsel__close(struct evsel *evsel);
+int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
+ struct perf_thread_map *threads);
+bool evsel__detect_missing_features(struct evsel *evsel);
+
+enum rlimit_action { NO_CHANGE, SET_TO_MAX, INCREASED_MAX };
+bool evsel__increase_rlimit(enum rlimit_action *set_rlimit);
+
+bool evsel__precise_ip_fallback(struct evsel *evsel);
+
+struct perf_sample;
+
+#ifdef HAVE_LIBTRACEEVENT
+void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
+u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
+
+static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
+{
+ return evsel__rawptr(evsel, sample, name);
+}
+#endif
+
+struct tep_format_field;
+
+u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
+
+struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
+
+static inline bool __evsel__match(const struct evsel *evsel, u32 type, u64 config)
+{
+ if (evsel->core.attr.type != type)
+ return false;
+
+ if ((type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE) &&
+ perf_pmus__supports_extended_type())
+ return (evsel->core.attr.config & PERF_HW_EVENT_MASK) == config;
+
+ return evsel->core.attr.config == config;
+}
+
+#define evsel__match(evsel, t, c) __evsel__match(evsel, PERF_TYPE_##t, PERF_COUNT_##c)
+
+static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
+{
+ return (e1->core.attr.type == e2->core.attr.type) &&
+ (e1->core.attr.config == e2->core.attr.config);
+}
+
+int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread);
+
+int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread, bool scale);
+
+/**
+ * evsel__read_on_cpu - Read out the results on a CPU and thread
+ *
+ * @evsel - event selector to read value
+ * @cpu_map_idx - CPU of interest
+ * @thread - thread of interest
+ */
+static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread)
+{
+ return __evsel__read_on_cpu(evsel, cpu_map_idx, thread, false);
+}
+
+/**
+ * evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
+ *
+ * @evsel - event selector to read value
+ * @cpu_map_idx - CPU of interest
+ * @thread - thread of interest
+ */
+static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu_map_idx, int thread)
+{
+ return __evsel__read_on_cpu(evsel, cpu_map_idx, 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);
+
+u16 evsel__id_hdr_size(struct evsel *evsel);
+
+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(const 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_head(_evsel, _leader, _head) \
+for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
+ (_evsel) && &(_evsel)->core.node != (_head) && \
+ (_evsel)->core.leader == &(_leader)->core; \
+ (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
+
+#define for_each_group_member(_evsel, _leader) \
+ for_each_group_member_head(_evsel, _leader, &(_leader)->evlist->core.entries)
+
+/* Iterates group WITH the leader. */
+#define for_each_group_evsel_head(_evsel, _leader, _head) \
+for ((_evsel) = _leader; \
+ (_evsel) && &(_evsel)->core.node != (_head) && \
+ (_evsel)->core.leader == &(_leader)->core; \
+ (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
+
+#define for_each_group_evsel(_evsel, _leader) \
+ for_each_group_evsel_head(_evsel, _leader, &(_leader)->evlist->core.entries)
+
+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(const struct evsel *evsel);
+struct evsel *evsel__leader(const 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);
+int evsel__source_count(const struct evsel *evsel);
+void evsel__remove_from_group(struct evsel *evsel, struct evsel *leader);
+
+bool arch_evsel__must_be_in_group(const struct evsel *evsel);
+
+/*
+ * Macro to swap the bit-field postition and size.
+ * Used when,
+ * - dont need to swap the entire u64 &&
+ * - when u64 has variable bit-field sizes &&
+ * - when presented in a host endian which is different
+ * than the source endian of the perf.data file
+ */
+#define bitfield_swap(src, pos, size) \
+ ((((src) >> (pos)) & ((1ull << (size)) - 1)) << (63 - ((pos) + (size) - 1)))
+
+u64 evsel__bitfield_swap_branch_flags(u64 value);
+void evsel__set_config_if_unset(struct perf_pmu *pmu, struct evsel *evsel,
+ const char *config_name, u64 val);
+
+#endif /* __PERF_EVSEL_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 17:08:17 +0000