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89efb02950
Adding scanner/parser bits to parse event groups.
The grammar for group is:
groups: groups ',' group | group
group: group_name '{' events '}' group_mod
group_name: name | empty
group_mod: ':' group_mods | empty
group_mods: event_mod
It's possible to use standard event modifier as a modifier
for group. It'll be used as an update to existing event
modifiers.
It's necessary to use quoting ("'\) when specifying group on
command line, since {} characters are interpreted by most of
the shells.
It is now possible to specify groups in event syntax like:
'{cycles,faults}'
- anonymous group
'group1{cycles,faults}
- group with name 'group1'
'{cycles,faults}:k
- anonymous group with event modifier 'k'
'{cpu-clock,task-clock},{minor-faults,major-faults}'
- two anonymous groups
The grouping functionality itself is coming shortly.
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/n/tip-p4j8bnvo879uokum4k4zk5q6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
111 lines
3.3 KiB
C
111 lines
3.3 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 "types.h"
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#include "../../../include/linux/perf_event.h"
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#include "types.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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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_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 {
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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_data__events {
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struct list_head list;
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int idx;
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};
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struct parse_events_data__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_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);
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int parse_events__modifier_group(struct list_head *list, char *event_mod);
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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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void parse_events__group(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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int parse_events__test(void);
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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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