linux_dsm_epyc7002/tools/perf/util/parse-events.h
Kan Liang dcb4e1022b perf tools: Parse the pmu event prefix and suffix
There are two types of event formats for PMU events. E.g. el-abort OR
cpu/el-abort/. However, the lexer mistakenly recognizes the simple style
format as two events.

The parse_events_pmu_check function uses bsearch to search the name in
known pmu event list. It can tell the lexer that the name is a PE_NAME
or a PMU event name prefix or a PMU event name suffix. All these
information will be used for accurately parsing kernel PMU events.

The pmu events list will be read from sysfs at runtime.

Note: Currently, the patch only want to handle the PMU event name as
"a-b" and "a". The only exception, "stalled-cycles-frontend" and
"stalled-cycles-fronted", are already hardcoded in lexer.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1412694532-23391-3-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2014-10-15 16:05:01 -03:00

127 lines
3.9 KiB
C

#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>
struct list_head;
struct perf_evsel;
struct perf_evlist;
struct option;
struct tracepoint_path {
char *system;
char *name;
struct tracepoint_path *next;
};
extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
extern struct tracepoint_path *tracepoint_name_to_path(const char *name);
extern bool have_tracepoints(struct list_head *evlist);
const char *event_type(int type);
extern int parse_events_option(const struct option *opt, const char *str,
int unset);
extern int parse_events(struct perf_evlist *evlist, const char *str);
extern int parse_events_terms(struct list_head *terms, const char *str);
extern int parse_filter(const struct option *opt, const char *str, 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_BRANCH_SAMPLE_TYPE,
};
struct parse_events_term {
char *config;
union {
char *str;
u64 num;
} val;
int type_val;
int type_term;
struct list_head list;
};
struct parse_events_evlist {
struct list_head list;
int idx;
int nr_groups;
};
struct parse_events_terms {
struct list_head *terms;
};
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);
int parse_events_term__str(struct parse_events_term **_term,
int type_term, char *config, char *str);
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__free_terms(struct list_head *terms);
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,
char *sys, char *event);
int parse_events_add_numeric(struct list_head *list, int *idx,
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);
int parse_events_add_breakpoint(struct list_head *list, int *idx,
void *ptr, char *type);
int parse_events_add_pmu(struct list_head *list, int *idx,
char *pmu , struct list_head *head_config);
enum perf_pmu_event_symbol_type
perf_pmu__parse_check(const char *name);
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_error(void *data, void *scanner, char const *msg);
void print_events(const char *event_glob, bool name_only);
void print_events_type(u8 type);
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);
extern int is_valid_tracepoint(const char *event_string);
extern int valid_debugfs_mount(const char *debugfs);
#endif /* __PERF_PARSE_EVENTS_H */