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/* 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 evsel;
struct evlist;
struct parse_events_error;
struct option;
struct perf_pmu;
const char *event_type(int type);
/* Arguments encoded in opt->value. */
struct parse_events_option_args {
struct evlist **evlistp;
const char *pmu_filter;
};
int parse_events_option(const struct option *opt, const char *str, int unset);
int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset);
__attribute__((nonnull(1, 2, 4)))
int __parse_events(struct evlist *evlist, const char *str, const char *pmu_filter,
struct parse_events_error *error, struct perf_pmu *fake_pmu,
bool warn_if_reordered);
__attribute__((nonnull(1, 2, 3)))
static inline int parse_events(struct evlist *evlist, const char *str,
struct parse_events_error *err)
{
return __parse_events(evlist, str, /*pmu_filter=*/NULL, err, /*fake_pmu=*/NULL,
/*warn_if_reordered=*/true);
}
int parse_event(struct evlist *evlist, const char *str);
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);
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_CONFIG3,
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_MAX_EVENTS,
PARSE_EVENTS__TERM_TYPE_NOOVERWRITE,
PARSE_EVENTS__TERM_TYPE_OVERWRITE,
PARSE_EVENTS__TERM_TYPE_DRV_CFG,
PARSE_EVENTS__TERM_TYPE_PERCORE,
PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT,
PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE,
PARSE_EVENTS__TERM_TYPE_METRIC_ID,
PARSE_EVENTS__TERM_TYPE_RAW,
PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
PARSE_EVENTS__TERM_TYPE_HARDWARE,
__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 num_errors; /* number of errors encountered */
int idx; /* index in the parsed string */
char *str; /* string to display at the index */
char *help; /* optional help string */
int first_idx;/* as above, but for the first encountered error */
char *first_str;
char *first_help;
};
struct parse_events_state {
struct list_head list;
int idx;
struct parse_events_error *error;
struct evlist *evlist;
struct list_head *terms;
int stoken;
struct perf_pmu *fake_pmu;
/* If non-null, when wildcard matching only match the given PMU. */
const char *pmu_filter;
/* Should PE_LEGACY_NAME tokens be generated for config terms? */
bool match_legacy_cache_terms;
bool wild_card_pmus;
};
bool parse_events__filter_pmu(const struct parse_events_state *parse_state,
const struct perf_pmu *pmu);
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__term(struct parse_events_term **term,
int term_lhs, int term_rhs,
void *loc_term, void *loc_val);
int parse_events_term__clone(struct parse_events_term **new,
struct parse_events_term *term);
void parse_events_term__delete(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, const 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,
bool wildcard);
int parse_events_add_tool(struct parse_events_state *parse_state,
struct list_head *list,
int tool_event);
int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
struct parse_events_state *parse_state,
struct list_head *head_config);
int parse_events__decode_legacy_cache(const char *name, int pmu_type, __u64 *config);
int parse_events_add_breakpoint(struct list_head *list, int *idx,
u64 addr, 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);
struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
const char *name, const char *metric_id,
struct perf_pmu *pmu);
int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
char *str,
struct list_head *head_config,
struct list_head **listp);
int parse_events_copy_term_list(struct list_head *old,
struct list_head **new);
void parse_events__set_leader(char *name, struct list_head *list);
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);
struct event_symbol {
const char *symbol;
const char *alias;
};
extern struct event_symbol event_symbols_hw[];
extern struct event_symbol event_symbols_sw[];
char *parse_events_formats_error_string(char *additional_terms);
void parse_events_error__init(struct parse_events_error *err);
void parse_events_error__exit(struct parse_events_error *err);
void parse_events_error__handle(struct parse_events_error *err, int idx,
char *str, char *help);
void parse_events_error__print(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 */
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