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Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/parse-events.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h new file mode 100644 index 000000000..4473dac27 --- /dev/null +++ b/tools/perf/util/parse-events.h @@ -0,0 +1,234 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_PARSE_EVENTS_H +#define __PERF_PARSE_EVENTS_H +/* + * Parse symbolic events/counts passed in as options: + */ + +#include <linux/list.h> +#include <stdbool.h> +#include <linux/types.h> +#include <linux/perf_event.h> +#include <string.h> + +struct list_head; +struct perf_evsel; +struct perf_evlist; +struct parse_events_error; + +struct option; + +struct tracepoint_path { + char *system; + char *name; + struct tracepoint_path *next; +}; + +struct tracepoint_path *tracepoint_id_to_path(u64 config); +struct tracepoint_path *tracepoint_name_to_path(const char *name); +bool have_tracepoints(struct list_head *evlist); + +const char *event_type(int type); + +int parse_events_option(const struct option *opt, const char *str, int unset); +int parse_events(struct perf_evlist *evlist, const char *str, + struct parse_events_error *error); +int parse_events_terms(struct list_head *terms, const char *str); +int parse_filter(const struct option *opt, const char *str, int unset); +int exclude_perf(const struct option *opt, const char *arg, int unset); + +#define EVENTS_HELP_MAX (128*1024) + +enum perf_pmu_event_symbol_type { + PMU_EVENT_SYMBOL_ERR, /* not a PMU EVENT */ + PMU_EVENT_SYMBOL, /* normal style PMU event */ + PMU_EVENT_SYMBOL_PREFIX, /* prefix of pre-suf style event */ + PMU_EVENT_SYMBOL_SUFFIX, /* suffix of pre-suf style event */ +}; + +struct perf_pmu_event_symbol { + char *symbol; + enum perf_pmu_event_symbol_type type; +}; + +enum { + PARSE_EVENTS__TERM_TYPE_NUM, + PARSE_EVENTS__TERM_TYPE_STR, +}; + +enum { + PARSE_EVENTS__TERM_TYPE_USER, + PARSE_EVENTS__TERM_TYPE_CONFIG, + PARSE_EVENTS__TERM_TYPE_CONFIG1, + PARSE_EVENTS__TERM_TYPE_CONFIG2, + PARSE_EVENTS__TERM_TYPE_NAME, + PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD, + PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ, + PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE, + PARSE_EVENTS__TERM_TYPE_TIME, + PARSE_EVENTS__TERM_TYPE_CALLGRAPH, + PARSE_EVENTS__TERM_TYPE_STACKSIZE, + PARSE_EVENTS__TERM_TYPE_NOINHERIT, + PARSE_EVENTS__TERM_TYPE_INHERIT, + PARSE_EVENTS__TERM_TYPE_MAX_STACK, + PARSE_EVENTS__TERM_TYPE_NOOVERWRITE, + PARSE_EVENTS__TERM_TYPE_OVERWRITE, + PARSE_EVENTS__TERM_TYPE_DRV_CFG, + __PARSE_EVENTS__TERM_TYPE_NR, +}; + +struct parse_events_array { + size_t nr_ranges; + struct { + unsigned int start; + size_t length; + } *ranges; +}; + +struct parse_events_term { + char *config; + struct parse_events_array array; + union { + char *str; + u64 num; + } val; + int type_val; + int type_term; + struct list_head list; + bool used; + bool no_value; + + /* error string indexes for within parsed string */ + int err_term; + int err_val; + + /* Coming from implicit alias */ + bool weak; +}; + +struct parse_events_error { + int idx; /* index in the parsed string */ + char *str; /* string to display at the index */ + char *help; /* optional help string */ +}; + +struct parse_events_state { + struct list_head list; + int idx; + int nr_groups; + struct parse_events_error *error; + struct perf_evlist *evlist; + struct list_head *terms; +}; + +void parse_events__shrink_config_terms(void); +int parse_events__is_hardcoded_term(struct parse_events_term *term); +int parse_events_term__num(struct parse_events_term **term, + int type_term, char *config, u64 num, + bool novalue, + void *loc_term, void *loc_val); +int parse_events_term__str(struct parse_events_term **term, + int type_term, char *config, char *str, + void *loc_term, void *loc_val); +int parse_events_term__sym_hw(struct parse_events_term **term, + char *config, unsigned idx); +int parse_events_term__clone(struct parse_events_term **new, + struct parse_events_term *term); +void parse_events_terms__delete(struct list_head *terms); +void parse_events_terms__purge(struct list_head *terms); +void parse_events__clear_array(struct parse_events_array *a); +int parse_events__modifier_event(struct list_head *list, char *str, bool add); +int parse_events__modifier_group(struct list_head *list, char *event_mod); +int parse_events_name(struct list_head *list, char *name); +int parse_events_add_tracepoint(struct list_head *list, int *idx, + const char *sys, const char *event, + struct parse_events_error *error, + struct list_head *head_config); +int parse_events_load_bpf(struct parse_events_state *parse_state, + struct list_head *list, + char *bpf_file_name, + bool source, + struct list_head *head_config); +/* Provide this function for perf test */ +struct bpf_object; +int parse_events_load_bpf_obj(struct parse_events_state *parse_state, + struct list_head *list, + struct bpf_object *obj, + struct list_head *head_config); +int parse_events_add_numeric(struct parse_events_state *parse_state, + struct list_head *list, + u32 type, u64 config, + struct list_head *head_config); +int parse_events_add_cache(struct list_head *list, int *idx, + char *type, char *op_result1, char *op_result2, + struct parse_events_error *error, + struct list_head *head_config); +int parse_events_add_breakpoint(struct list_head *list, int *idx, + void *ptr, char *type, u64 len); +int parse_events_add_pmu(struct parse_events_state *parse_state, + struct list_head *list, char *name, + struct list_head *head_config, + bool auto_merge_stats, + bool use_alias); + +int parse_events_multi_pmu_add(struct parse_events_state *parse_state, + char *str, + struct list_head **listp); + +int parse_events_copy_term_list(struct list_head *old, + struct list_head **new); + +enum perf_pmu_event_symbol_type +perf_pmu__parse_check(const char *name); +void parse_events__set_leader(char *name, struct list_head *list, + struct parse_events_state *parse_state); +void parse_events_update_lists(struct list_head *list_event, + struct list_head *list_all); +void parse_events_evlist_error(struct parse_events_state *parse_state, + int idx, const char *str); + +void print_events(const char *event_glob, bool name_only, bool quiet, + bool long_desc, bool details_flag); + +struct event_symbol { + const char *symbol; + const char *alias; +}; +extern struct event_symbol event_symbols_hw[]; +extern struct event_symbol event_symbols_sw[]; +void print_symbol_events(const char *event_glob, unsigned type, + struct event_symbol *syms, unsigned max, + bool name_only); +void print_tracepoint_events(const char *subsys_glob, const char *event_glob, + bool name_only); +int print_hwcache_events(const char *event_glob, bool name_only); +void print_sdt_events(const char *subsys_glob, const char *event_glob, + bool name_only); +int is_valid_tracepoint(const char *event_string); + +int valid_event_mount(const char *eventfs); +char *parse_events_formats_error_string(char *additional_terms); + +void parse_events_print_error(struct parse_events_error *err, + const char *event); + +#ifdef HAVE_LIBELF_SUPPORT +/* + * If the probe point starts with '%', + * or starts with "sdt_" and has a ':' but no '=', + * then it should be a SDT/cached probe point. + */ +static inline bool is_sdt_event(char *str) +{ + return (str[0] == '%' || + (!strncmp(str, "sdt_", 4) && + !!strchr(str, ':') && !strchr(str, '='))); +} +#else +static inline bool is_sdt_event(char *str __maybe_unused) +{ + return false; +} +#endif /* HAVE_LIBELF_SUPPORT */ + +#endif /* __PERF_PARSE_EVENTS_H */ |