![Wang Nan](/assets/img/avatar_default.png)
This patch allows following config terms and option: Globally setting events to overwrite; # perf record --overwrite ... Set specific events to be overwrite or no-overwrite. # perf record --event cycles/overwrite/ ... # perf record --event cycles/no-overwrite/ ... Add missing config terms and update the config term array size because the longest string length has changed. For overwritable events, it automatically selects attr.write_backward since perf requires it to be backward for reading. Test result: # perf record --overwrite -e syscalls:*enter_nanosleep* usleep 1 [ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote 0.011 MB perf.data (1 samples) ] # perf evlist -v syscalls:sys_enter_nanosleep: type: 2, size: 112, config: 0x134, { sample_period, sample_freq }: 1, sample_type: IP|TID|TIME|CPU|PERIOD|RAW, disabled: 1, inherit: 1, mmap: 1, comm: 1, enable_on_exec: 1, task: 1, sample_id_all: 1, exclude_guest: 1, mmap2: 1, comm_exec: 1, write_backward: 1 # Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nilay Vaish <nilayvaish@gmail.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1468485287-33422-14-git-send-email-wangnan0@huawei.com Signed-off-by: He Kuang <hekuang@huawei.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
196 lines
6 KiB
C
196 lines
6 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 parse_events_error;
|
|
|
|
struct option;
|
|
|
|
struct tracepoint_path {
|
|
char *system;
|
|
char *name;
|
|
struct tracepoint_path *next;
|
|
};
|
|
|
|
struct tracepoint_path *tracepoint_id_to_path(u64 config);
|
|
struct tracepoint_path *tracepoint_name_to_path(const char *name);
|
|
bool have_tracepoints(struct list_head *evlist);
|
|
|
|
const char *event_type(int type);
|
|
|
|
int parse_events_option(const struct option *opt, const char *str, int unset);
|
|
int parse_events(struct perf_evlist *evlist, const char *str,
|
|
struct parse_events_error *error);
|
|
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);
|
|
|
|
#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_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_NOOVERWRITE,
|
|
PARSE_EVENTS__TERM_TYPE_OVERWRITE,
|
|
__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;
|
|
|
|
/* error string indexes for within parsed string */
|
|
int err_term;
|
|
int err_val;
|
|
};
|
|
|
|
struct parse_events_error {
|
|
int idx; /* index in the parsed string */
|
|
char *str; /* string to display at the index */
|
|
char *help; /* optional help string */
|
|
};
|
|
|
|
struct parse_events_evlist {
|
|
struct list_head list;
|
|
int idx;
|
|
int nr_groups;
|
|
struct parse_events_error *error;
|
|
struct perf_evlist *evlist;
|
|
};
|
|
|
|
struct parse_events_terms {
|
|
struct list_head *terms;
|
|
};
|
|
|
|
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,
|
|
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__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_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, 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_evlist *data,
|
|
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_evlist *data,
|
|
struct list_head *list,
|
|
struct bpf_object *obj,
|
|
struct list_head *head_config);
|
|
int parse_events_add_numeric(struct parse_events_evlist *data,
|
|
struct list_head *list,
|
|
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,
|
|
struct parse_events_error *error,
|
|
struct list_head *head_config);
|
|
int parse_events_add_breakpoint(struct list_head *list, int *idx,
|
|
void *ptr, char *type, u64 len);
|
|
int parse_events_add_pmu(struct parse_events_evlist *data,
|
|
struct list_head *list, char *name,
|
|
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_evlist_error(struct parse_events_evlist *data,
|
|
int idx, const char *str);
|
|
|
|
void print_events(const char *event_glob, bool name_only);
|
|
|
|
struct event_symbol {
|
|
const char *symbol;
|
|
const char *alias;
|
|
};
|
|
extern struct event_symbol event_symbols_hw[];
|
|
extern struct event_symbol event_symbols_sw[];
|
|
void print_symbol_events(const char *event_glob, unsigned type,
|
|
struct event_symbol *syms, unsigned max,
|
|
bool name_only);
|
|
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);
|
|
void print_sdt_events(const char *subsys_glob, const char *event_glob,
|
|
bool name_only);
|
|
int is_valid_tracepoint(const char *event_string);
|
|
|
|
int valid_event_mount(const char *eventfs);
|
|
char *parse_events_formats_error_string(char *additional_terms);
|
|
|
|
#endif /* __PERF_PARSE_EVENTS_H */
|