235 lines
7.1 KiB
C
235 lines
7.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_PARSE_EVENTS_H
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#define __PERF_PARSE_EVENTS_H
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/*
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* Parse symbolic events/counts passed in as options:
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*/
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#include <linux/list.h>
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#include <stdbool.h>
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#include <linux/types.h>
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#include <linux/perf_event.h>
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#include <string.h>
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struct list_head;
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struct perf_evsel;
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struct perf_evlist;
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struct parse_events_error;
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struct option;
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struct tracepoint_path {
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char *system;
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char *name;
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struct tracepoint_path *next;
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};
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struct tracepoint_path *tracepoint_id_to_path(u64 config);
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struct tracepoint_path *tracepoint_name_to_path(const char *name);
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bool have_tracepoints(struct list_head *evlist);
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const char *event_type(int type);
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int parse_events_option(const struct option *opt, const char *str, int unset);
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int parse_events(struct perf_evlist *evlist, const char *str,
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struct parse_events_error *error);
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int parse_events_terms(struct list_head *terms, const char *str);
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int parse_filter(const struct option *opt, const char *str, int unset);
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int exclude_perf(const struct option *opt, const char *arg, int unset);
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#define EVENTS_HELP_MAX (128*1024)
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enum perf_pmu_event_symbol_type {
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PMU_EVENT_SYMBOL_ERR, /* not a PMU EVENT */
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PMU_EVENT_SYMBOL, /* normal style PMU event */
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PMU_EVENT_SYMBOL_PREFIX, /* prefix of pre-suf style event */
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PMU_EVENT_SYMBOL_SUFFIX, /* suffix of pre-suf style event */
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};
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struct perf_pmu_event_symbol {
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char *symbol;
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enum perf_pmu_event_symbol_type type;
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};
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enum {
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PARSE_EVENTS__TERM_TYPE_NUM,
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PARSE_EVENTS__TERM_TYPE_STR,
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};
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enum {
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PARSE_EVENTS__TERM_TYPE_USER,
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PARSE_EVENTS__TERM_TYPE_CONFIG,
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PARSE_EVENTS__TERM_TYPE_CONFIG1,
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PARSE_EVENTS__TERM_TYPE_CONFIG2,
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PARSE_EVENTS__TERM_TYPE_NAME,
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PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
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PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ,
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PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
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PARSE_EVENTS__TERM_TYPE_TIME,
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PARSE_EVENTS__TERM_TYPE_CALLGRAPH,
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PARSE_EVENTS__TERM_TYPE_STACKSIZE,
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PARSE_EVENTS__TERM_TYPE_NOINHERIT,
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PARSE_EVENTS__TERM_TYPE_INHERIT,
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PARSE_EVENTS__TERM_TYPE_MAX_STACK,
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PARSE_EVENTS__TERM_TYPE_NOOVERWRITE,
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PARSE_EVENTS__TERM_TYPE_OVERWRITE,
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PARSE_EVENTS__TERM_TYPE_DRV_CFG,
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__PARSE_EVENTS__TERM_TYPE_NR,
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};
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struct parse_events_array {
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size_t nr_ranges;
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struct {
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unsigned int start;
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size_t length;
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} *ranges;
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};
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struct parse_events_term {
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char *config;
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struct parse_events_array array;
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union {
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char *str;
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u64 num;
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} val;
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int type_val;
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int type_term;
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struct list_head list;
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bool used;
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bool no_value;
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/* error string indexes for within parsed string */
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int err_term;
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int err_val;
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/* Coming from implicit alias */
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bool weak;
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};
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struct parse_events_error {
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int idx; /* index in the parsed string */
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char *str; /* string to display at the index */
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char *help; /* optional help string */
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};
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struct parse_events_state {
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struct list_head list;
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int idx;
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int nr_groups;
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struct parse_events_error *error;
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struct perf_evlist *evlist;
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struct list_head *terms;
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};
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void parse_events__shrink_config_terms(void);
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int parse_events__is_hardcoded_term(struct parse_events_term *term);
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int parse_events_term__num(struct parse_events_term **term,
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int type_term, char *config, u64 num,
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bool novalue,
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void *loc_term, void *loc_val);
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int parse_events_term__str(struct parse_events_term **term,
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int type_term, char *config, char *str,
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void *loc_term, void *loc_val);
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int parse_events_term__sym_hw(struct parse_events_term **term,
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char *config, unsigned idx);
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int parse_events_term__clone(struct parse_events_term **new,
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struct parse_events_term *term);
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void parse_events_terms__delete(struct list_head *terms);
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void parse_events_terms__purge(struct list_head *terms);
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void parse_events__clear_array(struct parse_events_array *a);
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int parse_events__modifier_event(struct list_head *list, char *str, bool add);
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int parse_events__modifier_group(struct list_head *list, char *event_mod);
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int parse_events_name(struct list_head *list, char *name);
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int parse_events_add_tracepoint(struct list_head *list, int *idx,
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const char *sys, const char *event,
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struct parse_events_error *error,
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struct list_head *head_config);
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int parse_events_load_bpf(struct parse_events_state *parse_state,
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struct list_head *list,
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char *bpf_file_name,
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bool source,
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struct list_head *head_config);
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/* Provide this function for perf test */
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struct bpf_object;
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int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
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struct list_head *list,
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struct bpf_object *obj,
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struct list_head *head_config);
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int parse_events_add_numeric(struct parse_events_state *parse_state,
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struct list_head *list,
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u32 type, u64 config,
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struct list_head *head_config);
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int parse_events_add_cache(struct list_head *list, int *idx,
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char *type, char *op_result1, char *op_result2,
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struct parse_events_error *error,
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struct list_head *head_config);
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int parse_events_add_breakpoint(struct list_head *list, int *idx,
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void *ptr, char *type, u64 len);
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int parse_events_add_pmu(struct parse_events_state *parse_state,
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struct list_head *list, char *name,
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struct list_head *head_config,
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bool auto_merge_stats,
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bool use_alias);
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int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
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char *str,
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struct list_head **listp);
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int parse_events_copy_term_list(struct list_head *old,
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struct list_head **new);
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enum perf_pmu_event_symbol_type
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perf_pmu__parse_check(const char *name);
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void parse_events__set_leader(char *name, struct list_head *list,
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struct parse_events_state *parse_state);
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void parse_events_update_lists(struct list_head *list_event,
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struct list_head *list_all);
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void parse_events_evlist_error(struct parse_events_state *parse_state,
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int idx, const char *str);
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void print_events(const char *event_glob, bool name_only, bool quiet,
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bool long_desc, bool details_flag);
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struct event_symbol {
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const char *symbol;
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const char *alias;
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};
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extern struct event_symbol event_symbols_hw[];
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extern struct event_symbol event_symbols_sw[];
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void print_symbol_events(const char *event_glob, unsigned type,
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struct event_symbol *syms, unsigned max,
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bool name_only);
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void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
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bool name_only);
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int print_hwcache_events(const char *event_glob, bool name_only);
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void print_sdt_events(const char *subsys_glob, const char *event_glob,
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bool name_only);
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int is_valid_tracepoint(const char *event_string);
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int valid_event_mount(const char *eventfs);
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char *parse_events_formats_error_string(char *additional_terms);
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void parse_events_print_error(struct parse_events_error *err,
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const char *event);
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#ifdef HAVE_LIBELF_SUPPORT
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/*
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* If the probe point starts with '%',
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* or starts with "sdt_" and has a ':' but no '=',
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* then it should be a SDT/cached probe point.
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*/
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static inline bool is_sdt_event(char *str)
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{
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return (str[0] == '%' ||
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(!strncmp(str, "sdt_", 4) &&
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!!strchr(str, ':') && !strchr(str, '=')));
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}
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#else
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static inline bool is_sdt_event(char *str __maybe_unused)
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{
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return false;
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}
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#endif /* HAVE_LIBELF_SUPPORT */
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#endif /* __PERF_PARSE_EVENTS_H */
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