8f707d843c
Adding a new rule to the event grammar to be able to specify
values of additional attributes of symbolic event.
The new syntax for event symbolic definition is:
event_legacy_symbol: PE_NAME_SYM '/' event_config '/' |
PE_NAME_SYM sep_slash_dc
event_config: event_config ',' event_term | event_term
event_term: PE_NAME '=' PE_NAME |
PE_NAME '=' PE_VALUE
PE_NAME
sep_slash_dc: '/' | ':' |
At the moment the config options are hardcoded to be used for legacy
symbol events to define several perf_event_attr fields. It is:
'config' to define perf_event_attr::config
'config1' to define perf_event_attr::config1
'config2' to define perf_event_attr::config2
'period' to define perf_event_attr::sample_period
Legacy events could be now specified as:
cycles/period=100000/
If term is specified without the value assignment, then 1 is
assigned by default.
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-mgkavww9790jbt2jdkooyv4q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
89 lines
2.6 KiB
C
89 lines
2.6 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 "../../../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 bool have_tracepoints(struct list_head *evlist);
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const char *event_type(int type);
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const char *event_name(struct perf_evsel *event);
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extern const char *__event_name(int type, u64 config);
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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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int unset);
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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 {
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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_SAMPLE_PERIOD,
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PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
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PARSE_EVENTS__TERM_TYPE_NUM,
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PARSE_EVENTS__TERM_TYPE_STR,
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PARSE_EVENTS__TERM_TYPE_HARDCODED_MAX =
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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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long num;
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} val;
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int type;
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struct list_head list;
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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__new_term(struct parse_events__term **term, int type,
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char *config, char *str, long num);
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void parse_events__free_terms(struct list_head *terms);
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int parse_events_modifier(struct list_head *list __used, char *str __used);
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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_raw(struct perf_evlist *evlist, unsigned long config,
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unsigned long config1, unsigned long config2,
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char *mod);
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int parse_events_add_numeric(struct list_head *list, int *idx,
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unsigned long type, unsigned long 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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void parse_events_error(struct list_head *list, int *idx,
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char const *msg);
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void print_events(const char *event_glob);
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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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int print_hwcache_events(const char *event_glob);
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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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