| #ifndef __PERF_EVSEL_H |
| #define __PERF_EVSEL_H 1 |
| |
| #include <linux/list.h> |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <linux/perf_event.h> |
| #include <linux/types.h> |
| #include "xyarray.h" |
| #include "symbol.h" |
| |
| struct perf_counts_values { |
| union { |
| struct { |
| u64 val; |
| u64 ena; |
| u64 run; |
| }; |
| u64 values[3]; |
| }; |
| }; |
| |
| struct perf_counts { |
| s8 scaled; |
| struct perf_counts_values aggr; |
| struct perf_counts_values cpu[]; |
| }; |
| |
| struct perf_evsel; |
| |
| /* |
| * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are |
| * more than one entry in the evlist. |
| */ |
| struct perf_sample_id { |
| struct hlist_node node; |
| u64 id; |
| struct perf_evsel *evsel; |
| int idx; |
| int cpu; |
| pid_t tid; |
| |
| /* Holds total ID period value for PERF_SAMPLE_READ processing. */ |
| u64 period; |
| }; |
| |
| struct cgroup_sel; |
| |
| /** struct perf_evsel - event selector |
| * |
| * @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 sample_event |
| * @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 perf_evsel { |
| struct list_head node; |
| struct perf_event_attr attr; |
| char *filter; |
| struct xyarray *fd; |
| struct xyarray *sample_id; |
| u64 *id; |
| struct perf_counts *counts; |
| struct perf_counts *prev_raw_counts; |
| int idx; |
| u32 ids; |
| char *name; |
| double scale; |
| const char *unit; |
| bool snapshot; |
| struct event_format *tp_format; |
| union { |
| void *priv; |
| off_t id_offset; |
| u64 db_id; |
| }; |
| struct cgroup_sel *cgrp; |
| void *handler; |
| struct cpu_map *cpus; |
| unsigned int sample_size; |
| int id_pos; |
| int is_pos; |
| bool supported; |
| bool needs_swap; |
| bool no_aux_samples; |
| bool immediate; |
| bool system_wide; |
| bool tracking; |
| bool per_pkg; |
| unsigned long *per_pkg_mask; |
| /* parse modifier helper */ |
| int exclude_GH; |
| int nr_members; |
| int sample_read; |
| struct perf_evsel *leader; |
| char *group_name; |
| }; |
| |
| union u64_swap { |
| u64 val64; |
| u32 val32[2]; |
| }; |
| |
| struct cpu_map; |
| struct target; |
| struct thread_map; |
| struct perf_evlist; |
| struct record_opts; |
| |
| void perf_counts_values__scale(struct perf_counts_values *count, |
| bool scale, s8 *pscaled); |
| |
| void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, |
| struct perf_counts_values *count); |
| |
| int perf_evsel__object_config(size_t object_size, |
| int (*init)(struct perf_evsel *evsel), |
| void (*fini)(struct perf_evsel *evsel)); |
| |
| struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx); |
| |
| static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr) |
| { |
| return perf_evsel__new_idx(attr, 0); |
| } |
| |
| struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx); |
| |
| static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name) |
| { |
| return perf_evsel__newtp_idx(sys, name, 0); |
| } |
| |
| struct event_format *event_format__new(const char *sys, const char *name); |
| |
| void perf_evsel__init(struct perf_evsel *evsel, |
| struct perf_event_attr *attr, int idx); |
| void perf_evsel__exit(struct perf_evsel *evsel); |
| void perf_evsel__delete(struct perf_evsel *evsel); |
| |
| void perf_evsel__config(struct perf_evsel *evsel, |
| struct record_opts *opts); |
| |
| int __perf_evsel__sample_size(u64 sample_type); |
| void perf_evsel__calc_id_pos(struct perf_evsel *evsel); |
| |
| bool perf_evsel__is_cache_op_valid(u8 type, u8 op); |
| |
| #define PERF_EVSEL__MAX_ALIASES 8 |
| |
| extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] |
| [PERF_EVSEL__MAX_ALIASES]; |
| extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] |
| [PERF_EVSEL__MAX_ALIASES]; |
| extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] |
| [PERF_EVSEL__MAX_ALIASES]; |
| extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX]; |
| extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX]; |
| int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, |
| char *bf, size_t size); |
| const char *perf_evsel__name(struct perf_evsel *evsel); |
| |
| const char *perf_evsel__group_name(struct perf_evsel *evsel); |
| int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size); |
| |
| int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads); |
| int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus); |
| void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus); |
| void perf_evsel__free_counts(struct perf_evsel *evsel); |
| void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads); |
| |
| void __perf_evsel__set_sample_bit(struct perf_evsel *evsel, |
| enum perf_event_sample_format bit); |
| void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel, |
| enum perf_event_sample_format bit); |
| |
| #define perf_evsel__set_sample_bit(evsel, bit) \ |
| __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit) |
| |
| #define perf_evsel__reset_sample_bit(evsel, bit) \ |
| __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit) |
| |
| void perf_evsel__set_sample_id(struct perf_evsel *evsel, |
| bool use_sample_identifier); |
| |
| int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads, |
| const char *filter); |
| int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads); |
| |
| int perf_evsel__open_per_cpu(struct perf_evsel *evsel, |
| struct cpu_map *cpus); |
| int perf_evsel__open_per_thread(struct perf_evsel *evsel, |
| struct thread_map *threads); |
| int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, |
| struct thread_map *threads); |
| void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads); |
| |
| struct perf_sample; |
| |
| void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample, |
| const char *name); |
| u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample, |
| const char *name); |
| |
| static inline char *perf_evsel__strval(struct perf_evsel *evsel, |
| struct perf_sample *sample, |
| const char *name) |
| { |
| return perf_evsel__rawptr(evsel, sample, name); |
| } |
| |
| struct format_field; |
| |
| struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name); |
| |
| #define perf_evsel__match(evsel, t, c) \ |
| (evsel->attr.type == PERF_TYPE_##t && \ |
| evsel->attr.config == PERF_COUNT_##c) |
| |
| static inline bool perf_evsel__match2(struct perf_evsel *e1, |
| struct perf_evsel *e2) |
| { |
| return (e1->attr.type == e2->attr.type) && |
| (e1->attr.config == e2->attr.config); |
| } |
| |
| #define perf_evsel__cmp(a, b) \ |
| ((a) && \ |
| (b) && \ |
| (a)->attr.type == (b)->attr.type && \ |
| (a)->attr.config == (b)->attr.config) |
| |
| typedef int (perf_evsel__read_cb_t)(struct perf_evsel *evsel, |
| int cpu, int thread, |
| struct perf_counts_values *count); |
| |
| int perf_evsel__read_cb(struct perf_evsel *evsel, int cpu, int thread, |
| perf_evsel__read_cb_t cb); |
| |
| int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, |
| int cpu, int thread, bool scale); |
| |
| /** |
| * perf_evsel__read_on_cpu - Read out the results on a CPU and thread |
| * |
| * @evsel - event selector to read value |
| * @cpu - CPU of interest |
| * @thread - thread of interest |
| */ |
| static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel, |
| int cpu, int thread) |
| { |
| return __perf_evsel__read_on_cpu(evsel, cpu, thread, false); |
| } |
| |
| /** |
| * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled |
| * |
| * @evsel - event selector to read value |
| * @cpu - CPU of interest |
| * @thread - thread of interest |
| */ |
| static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel, |
| int cpu, int thread) |
| { |
| return __perf_evsel__read_on_cpu(evsel, cpu, thread, true); |
| } |
| |
| int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, |
| struct perf_sample *sample); |
| |
| static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel) |
| { |
| return list_entry(evsel->node.next, struct perf_evsel, node); |
| } |
| |
| static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel) |
| { |
| return list_entry(evsel->node.prev, struct perf_evsel, node); |
| } |
| |
| /** |
| * perf_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 perf_evsel__is_group_leader(const struct perf_evsel *evsel) |
| { |
| return evsel->leader == evsel; |
| } |
| |
| /** |
| * perf_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 perf_evsel__is_group_event(struct perf_evsel *evsel) |
| { |
| if (!symbol_conf.event_group) |
| return false; |
| |
| return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1; |
| } |
| |
| /** |
| * perf_evsel__is_function_event - Return whether given evsel is a function |
| * trace event |
| * |
| * @evsel - evsel selector to be tested |
| * |
| * Return %true if event is function trace event |
| */ |
| static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel) |
| { |
| #define FUNCTION_EVENT "ftrace:function" |
| |
| return evsel->name && |
| !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT)); |
| |
| #undef FUNCTION_EVENT |
| } |
| |
| struct perf_attr_details { |
| bool freq; |
| bool verbose; |
| bool event_group; |
| }; |
| |
| int perf_evsel__fprintf(struct perf_evsel *evsel, |
| struct perf_attr_details *details, FILE *fp); |
| |
| bool perf_evsel__fallback(struct perf_evsel *evsel, int err, |
| char *msg, size_t msgsize); |
| int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target, |
| int err, char *msg, size_t size); |
| |
| static inline int perf_evsel__group_idx(struct perf_evsel *evsel) |
| { |
| return evsel->idx - evsel->leader->idx; |
| } |
| |
| #define for_each_group_member(_evsel, _leader) \ |
| for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \ |
| (_evsel) && (_evsel)->leader == (_leader); \ |
| (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node)) |
| |
| static inline bool has_branch_callstack(struct perf_evsel *evsel) |
| { |
| return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK; |
| } |
| #endif /* __PERF_EVSEL_H */ |