dcb4e1022b
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>
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
#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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struct list_head;
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struct perf_evsel;
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struct perf_evlist;
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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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extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
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extern struct tracepoint_path *tracepoint_name_to_path(const char *name);
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extern bool have_tracepoints(struct list_head *evlist);
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const char *event_type(int type);
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extern int parse_events_option(const struct option *opt, const char *str,
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int unset);
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extern int parse_events(struct perf_evlist *evlist, const char *str);
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extern int parse_events_terms(struct list_head *terms, const char *str);
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extern int parse_filter(const struct option *opt, const char *str, 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_BRANCH_SAMPLE_TYPE,
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};
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struct parse_events_term {
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char *config;
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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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};
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struct parse_events_evlist {
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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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};
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struct parse_events_terms {
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struct list_head *terms;
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};
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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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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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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__free_terms(struct list_head *terms);
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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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char *sys, char *event);
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int parse_events_add_numeric(struct list_head *list, int *idx,
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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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int parse_events_add_breakpoint(struct list_head *list, int *idx,
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void *ptr, char *type);
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int parse_events_add_pmu(struct list_head *list, int *idx,
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char *pmu , struct list_head *head_config);
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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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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_error(void *data, void *scanner, char const *msg);
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void print_events(const char *event_glob, bool name_only);
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void print_events_type(u8 type);
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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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extern int is_valid_tracepoint(const char *event_string);
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extern int valid_debugfs_mount(const char *debugfs);
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#endif /* __PERF_PARSE_EVENTS_H */
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