1 #ifndef __PERF_PARSE_EVENTS_H 2 #define __PERF_PARSE_EVENTS_H 3 /* 4 * Parse symbolic events/counts passed in as options: 5 */ 6 7 #include <linux/list.h> 8 #include <stdbool.h> 9 #include <linux/types.h> 10 #include <linux/perf_event.h> 11 #include <string.h> 12 13 struct list_head; 14 struct perf_evsel; 15 struct perf_evlist; 16 struct parse_events_error; 17 18 struct option; 19 20 struct tracepoint_path { 21 char *system; 22 char *name; 23 struct tracepoint_path *next; 24 }; 25 26 struct tracepoint_path *tracepoint_id_to_path(u64 config); 27 struct tracepoint_path *tracepoint_name_to_path(const char *name); 28 bool have_tracepoints(struct list_head *evlist); 29 30 const char *event_type(int type); 31 32 int parse_events_option(const struct option *opt, const char *str, int unset); 33 int parse_events(struct perf_evlist *evlist, const char *str, 34 struct parse_events_error *error); 35 int parse_events_terms(struct list_head *terms, const char *str); 36 int parse_filter(const struct option *opt, const char *str, int unset); 37 int exclude_perf(const struct option *opt, const char *arg, int unset); 38 39 #define EVENTS_HELP_MAX (128*1024) 40 41 enum perf_pmu_event_symbol_type { 42 PMU_EVENT_SYMBOL_ERR, /* not a PMU EVENT */ 43 PMU_EVENT_SYMBOL, /* normal style PMU event */ 44 PMU_EVENT_SYMBOL_PREFIX, /* prefix of pre-suf style event */ 45 PMU_EVENT_SYMBOL_SUFFIX, /* suffix of pre-suf style event */ 46 }; 47 48 struct perf_pmu_event_symbol { 49 char *symbol; 50 enum perf_pmu_event_symbol_type type; 51 }; 52 53 enum { 54 PARSE_EVENTS__TERM_TYPE_NUM, 55 PARSE_EVENTS__TERM_TYPE_STR, 56 }; 57 58 enum { 59 PARSE_EVENTS__TERM_TYPE_USER, 60 PARSE_EVENTS__TERM_TYPE_CONFIG, 61 PARSE_EVENTS__TERM_TYPE_CONFIG1, 62 PARSE_EVENTS__TERM_TYPE_CONFIG2, 63 PARSE_EVENTS__TERM_TYPE_NAME, 64 PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD, 65 PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ, 66 PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE, 67 PARSE_EVENTS__TERM_TYPE_TIME, 68 PARSE_EVENTS__TERM_TYPE_CALLGRAPH, 69 PARSE_EVENTS__TERM_TYPE_STACKSIZE, 70 PARSE_EVENTS__TERM_TYPE_NOINHERIT, 71 PARSE_EVENTS__TERM_TYPE_INHERIT, 72 PARSE_EVENTS__TERM_TYPE_MAX_STACK, 73 PARSE_EVENTS__TERM_TYPE_NOOVERWRITE, 74 PARSE_EVENTS__TERM_TYPE_OVERWRITE, 75 PARSE_EVENTS__TERM_TYPE_DRV_CFG, 76 __PARSE_EVENTS__TERM_TYPE_NR, 77 }; 78 79 struct parse_events_array { 80 size_t nr_ranges; 81 struct { 82 unsigned int start; 83 size_t length; 84 } *ranges; 85 }; 86 87 struct parse_events_term { 88 char *config; 89 struct parse_events_array array; 90 union { 91 char *str; 92 u64 num; 93 } val; 94 int type_val; 95 int type_term; 96 struct list_head list; 97 bool used; 98 bool no_value; 99 100 /* error string indexes for within parsed string */ 101 int err_term; 102 int err_val; 103 }; 104 105 struct parse_events_error { 106 int idx; /* index in the parsed string */ 107 char *str; /* string to display at the index */ 108 char *help; /* optional help string */ 109 }; 110 111 struct parse_events_state { 112 struct list_head list; 113 int idx; 114 int nr_groups; 115 struct parse_events_error *error; 116 struct perf_evlist *evlist; 117 struct list_head *terms; 118 }; 119 120 void parse_events__shrink_config_terms(void); 121 int parse_events__is_hardcoded_term(struct parse_events_term *term); 122 int parse_events_term__num(struct parse_events_term **term, 123 int type_term, char *config, u64 num, 124 bool novalue, 125 void *loc_term, void *loc_val); 126 int parse_events_term__str(struct parse_events_term **term, 127 int type_term, char *config, char *str, 128 void *loc_term, void *loc_val); 129 int parse_events_term__sym_hw(struct parse_events_term **term, 130 char *config, unsigned idx); 131 int parse_events_term__clone(struct parse_events_term **new, 132 struct parse_events_term *term); 133 void parse_events_terms__delete(struct list_head *terms); 134 void parse_events_terms__purge(struct list_head *terms); 135 void parse_events__clear_array(struct parse_events_array *a); 136 int parse_events__modifier_event(struct list_head *list, char *str, bool add); 137 int parse_events__modifier_group(struct list_head *list, char *event_mod); 138 int parse_events_name(struct list_head *list, char *name); 139 int parse_events_add_tracepoint(struct list_head *list, int *idx, 140 const char *sys, const char *event, 141 struct parse_events_error *error, 142 struct list_head *head_config); 143 int parse_events_load_bpf(struct parse_events_state *parse_state, 144 struct list_head *list, 145 char *bpf_file_name, 146 bool source, 147 struct list_head *head_config); 148 /* Provide this function for perf test */ 149 struct bpf_object; 150 int parse_events_load_bpf_obj(struct parse_events_state *parse_state, 151 struct list_head *list, 152 struct bpf_object *obj, 153 struct list_head *head_config); 154 int parse_events_add_numeric(struct parse_events_state *parse_state, 155 struct list_head *list, 156 u32 type, u64 config, 157 struct list_head *head_config); 158 int parse_events_add_cache(struct list_head *list, int *idx, 159 char *type, char *op_result1, char *op_result2, 160 struct parse_events_error *error, 161 struct list_head *head_config); 162 int parse_events_add_breakpoint(struct list_head *list, int *idx, 163 void *ptr, char *type, u64 len); 164 int parse_events_add_pmu(struct parse_events_state *parse_state, 165 struct list_head *list, char *name, 166 struct list_head *head_config); 167 168 int parse_events_multi_pmu_add(struct parse_events_state *parse_state, 169 char *str, 170 struct list_head **listp); 171 172 int parse_events_copy_term_list(struct list_head *old, 173 struct list_head **new); 174 175 enum perf_pmu_event_symbol_type 176 perf_pmu__parse_check(const char *name); 177 void parse_events__set_leader(char *name, struct list_head *list); 178 void parse_events_update_lists(struct list_head *list_event, 179 struct list_head *list_all); 180 void parse_events_evlist_error(struct parse_events_state *parse_state, 181 int idx, const char *str); 182 183 void print_events(const char *event_glob, bool name_only, bool quiet, 184 bool long_desc, bool details_flag); 185 186 struct event_symbol { 187 const char *symbol; 188 const char *alias; 189 }; 190 extern struct event_symbol event_symbols_hw[]; 191 extern struct event_symbol event_symbols_sw[]; 192 void print_symbol_events(const char *event_glob, unsigned type, 193 struct event_symbol *syms, unsigned max, 194 bool name_only); 195 void print_tracepoint_events(const char *subsys_glob, const char *event_glob, 196 bool name_only); 197 int print_hwcache_events(const char *event_glob, bool name_only); 198 void print_sdt_events(const char *subsys_glob, const char *event_glob, 199 bool name_only); 200 int is_valid_tracepoint(const char *event_string); 201 202 int valid_event_mount(const char *eventfs); 203 char *parse_events_formats_error_string(char *additional_terms); 204 205 #ifdef HAVE_LIBELF_SUPPORT 206 /* 207 * If the probe point starts with '%', 208 * or starts with "sdt_" and has a ':' but no '=', 209 * then it should be a SDT/cached probe point. 210 */ 211 static inline bool is_sdt_event(char *str) 212 { 213 return (str[0] == '%' || 214 (!strncmp(str, "sdt_", 4) && 215 !!strchr(str, ':') && !strchr(str, '='))); 216 } 217 #else 218 static inline bool is_sdt_event(char *str __maybe_unused) 219 { 220 return false; 221 } 222 #endif /* HAVE_LIBELF_SUPPORT */ 223 224 #endif /* __PERF_PARSE_EVENTS_H */ 225