1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PERF_PARSE_EVENTS_H 3 #define __PERF_PARSE_EVENTS_H 4 /* 5 * Parse symbolic events/counts passed in as options: 6 */ 7 8 #include <linux/list.h> 9 #include <stdbool.h> 10 #include <linux/types.h> 11 #include <linux/perf_event.h> 12 #include <string.h> 13 14 struct list_head; 15 struct evsel; 16 struct evlist; 17 struct parse_events_error; 18 19 struct option; 20 struct perf_pmu; 21 22 struct tracepoint_path { 23 char *system; 24 char *name; 25 struct tracepoint_path *next; 26 }; 27 28 struct tracepoint_path *tracepoint_id_to_path(u64 config); 29 struct tracepoint_path *tracepoint_name_to_path(const char *name); 30 bool have_tracepoints(struct list_head *evlist); 31 32 const char *event_type(int type); 33 34 int parse_events_option(const struct option *opt, const char *str, int unset); 35 int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset); 36 int __parse_events(struct evlist *evlist, const char *str, struct parse_events_error *error, 37 struct perf_pmu *fake_pmu); 38 39 static inline int parse_events(struct evlist *evlist, const char *str, 40 struct parse_events_error *err) 41 { 42 return __parse_events(evlist, str, err, NULL); 43 } 44 45 int parse_events_terms(struct list_head *terms, const char *str); 46 int parse_filter(const struct option *opt, const char *str, int unset); 47 int exclude_perf(const struct option *opt, const char *arg, int unset); 48 49 #define EVENTS_HELP_MAX (128*1024) 50 51 enum perf_pmu_event_symbol_type { 52 PMU_EVENT_SYMBOL_ERR, /* not a PMU EVENT */ 53 PMU_EVENT_SYMBOL, /* normal style PMU event */ 54 PMU_EVENT_SYMBOL_PREFIX, /* prefix of pre-suf style event */ 55 PMU_EVENT_SYMBOL_SUFFIX, /* suffix of pre-suf style event */ 56 }; 57 58 struct perf_pmu_event_symbol { 59 char *symbol; 60 enum perf_pmu_event_symbol_type type; 61 }; 62 63 enum { 64 PARSE_EVENTS__TERM_TYPE_NUM, 65 PARSE_EVENTS__TERM_TYPE_STR, 66 }; 67 68 enum { 69 PARSE_EVENTS__TERM_TYPE_USER, 70 PARSE_EVENTS__TERM_TYPE_CONFIG, 71 PARSE_EVENTS__TERM_TYPE_CONFIG1, 72 PARSE_EVENTS__TERM_TYPE_CONFIG2, 73 PARSE_EVENTS__TERM_TYPE_NAME, 74 PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD, 75 PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ, 76 PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE, 77 PARSE_EVENTS__TERM_TYPE_TIME, 78 PARSE_EVENTS__TERM_TYPE_CALLGRAPH, 79 PARSE_EVENTS__TERM_TYPE_STACKSIZE, 80 PARSE_EVENTS__TERM_TYPE_NOINHERIT, 81 PARSE_EVENTS__TERM_TYPE_INHERIT, 82 PARSE_EVENTS__TERM_TYPE_MAX_STACK, 83 PARSE_EVENTS__TERM_TYPE_MAX_EVENTS, 84 PARSE_EVENTS__TERM_TYPE_NOOVERWRITE, 85 PARSE_EVENTS__TERM_TYPE_OVERWRITE, 86 PARSE_EVENTS__TERM_TYPE_DRV_CFG, 87 PARSE_EVENTS__TERM_TYPE_PERCORE, 88 PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT, 89 PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE, 90 __PARSE_EVENTS__TERM_TYPE_NR, 91 }; 92 93 struct parse_events_array { 94 size_t nr_ranges; 95 struct { 96 unsigned int start; 97 size_t length; 98 } *ranges; 99 }; 100 101 struct parse_events_term { 102 char *config; 103 struct parse_events_array array; 104 union { 105 char *str; 106 u64 num; 107 } val; 108 int type_val; 109 int type_term; 110 struct list_head list; 111 bool used; 112 bool no_value; 113 114 /* error string indexes for within parsed string */ 115 int err_term; 116 int err_val; 117 118 /* Coming from implicit alias */ 119 bool weak; 120 }; 121 122 struct parse_events_error { 123 int num_errors; /* number of errors encountered */ 124 int idx; /* index in the parsed string */ 125 char *str; /* string to display at the index */ 126 char *help; /* optional help string */ 127 int first_idx;/* as above, but for the first encountered error */ 128 char *first_str; 129 char *first_help; 130 }; 131 132 struct parse_events_state { 133 struct list_head list; 134 int idx; 135 int nr_groups; 136 struct parse_events_error *error; 137 struct evlist *evlist; 138 struct list_head *terms; 139 int stoken; 140 struct perf_pmu *fake_pmu; 141 char *hybrid_pmu_name; 142 }; 143 144 void parse_events__handle_error(struct parse_events_error *err, int idx, 145 char *str, char *help); 146 void parse_events__shrink_config_terms(void); 147 int parse_events__is_hardcoded_term(struct parse_events_term *term); 148 int parse_events_term__num(struct parse_events_term **term, 149 int type_term, char *config, u64 num, 150 bool novalue, 151 void *loc_term, void *loc_val); 152 int parse_events_term__str(struct parse_events_term **term, 153 int type_term, char *config, char *str, 154 void *loc_term, void *loc_val); 155 int parse_events_term__sym_hw(struct parse_events_term **term, 156 char *config, unsigned idx); 157 int parse_events_term__clone(struct parse_events_term **new, 158 struct parse_events_term *term); 159 void parse_events_term__delete(struct parse_events_term *term); 160 void parse_events_terms__delete(struct list_head *terms); 161 void parse_events_terms__purge(struct list_head *terms); 162 void parse_events__clear_array(struct parse_events_array *a); 163 int parse_events__modifier_event(struct list_head *list, char *str, bool add); 164 int parse_events__modifier_group(struct list_head *list, char *event_mod); 165 int parse_events_name(struct list_head *list, char *name); 166 int parse_events_add_tracepoint(struct list_head *list, int *idx, 167 const char *sys, const char *event, 168 struct parse_events_error *error, 169 struct list_head *head_config); 170 int parse_events_load_bpf(struct parse_events_state *parse_state, 171 struct list_head *list, 172 char *bpf_file_name, 173 bool source, 174 struct list_head *head_config); 175 /* Provide this function for perf test */ 176 struct bpf_object; 177 int parse_events_load_bpf_obj(struct parse_events_state *parse_state, 178 struct list_head *list, 179 struct bpf_object *obj, 180 struct list_head *head_config); 181 int parse_events_add_numeric(struct parse_events_state *parse_state, 182 struct list_head *list, 183 u32 type, u64 config, 184 struct list_head *head_config); 185 int parse_events_add_tool(struct parse_events_state *parse_state, 186 struct list_head *list, 187 int tool_event); 188 int parse_events_add_cache(struct list_head *list, int *idx, 189 char *type, char *op_result1, char *op_result2, 190 struct parse_events_error *error, 191 struct list_head *head_config, 192 struct parse_events_state *parse_state); 193 int parse_events_add_breakpoint(struct list_head *list, int *idx, 194 u64 addr, char *type, u64 len); 195 int parse_events_add_pmu(struct parse_events_state *parse_state, 196 struct list_head *list, char *name, 197 struct list_head *head_config, 198 bool auto_merge_stats, 199 bool use_alias); 200 201 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr, 202 char *name, struct perf_pmu *pmu); 203 204 int parse_events_multi_pmu_add(struct parse_events_state *parse_state, 205 char *str, 206 struct list_head **listp); 207 208 int parse_events_copy_term_list(struct list_head *old, 209 struct list_head **new); 210 211 enum perf_pmu_event_symbol_type 212 perf_pmu__parse_check(const char *name); 213 void parse_events__set_leader(char *name, struct list_head *list, 214 struct parse_events_state *parse_state); 215 void parse_events_update_lists(struct list_head *list_event, 216 struct list_head *list_all); 217 void parse_events_evlist_error(struct parse_events_state *parse_state, 218 int idx, const char *str); 219 220 void print_events(const char *event_glob, bool name_only, bool quiet, 221 bool long_desc, bool details_flag, bool deprecated); 222 223 struct event_symbol { 224 const char *symbol; 225 const char *alias; 226 }; 227 extern struct event_symbol event_symbols_hw[]; 228 extern struct event_symbol event_symbols_sw[]; 229 void print_symbol_events(const char *event_glob, unsigned type, 230 struct event_symbol *syms, unsigned max, 231 bool name_only); 232 void print_tool_events(const char *event_glob, bool name_only); 233 void print_tracepoint_events(const char *subsys_glob, const char *event_glob, 234 bool name_only); 235 int print_hwcache_events(const char *event_glob, bool name_only); 236 void print_sdt_events(const char *subsys_glob, const char *event_glob, 237 bool name_only); 238 int is_valid_tracepoint(const char *event_string); 239 240 int valid_event_mount(const char *eventfs); 241 char *parse_events_formats_error_string(char *additional_terms); 242 243 void parse_events_print_error(struct parse_events_error *err, 244 const char *event); 245 246 #ifdef HAVE_LIBELF_SUPPORT 247 /* 248 * If the probe point starts with '%', 249 * or starts with "sdt_" and has a ':' but no '=', 250 * then it should be a SDT/cached probe point. 251 */ 252 static inline bool is_sdt_event(char *str) 253 { 254 return (str[0] == '%' || 255 (!strncmp(str, "sdt_", 4) && 256 !!strchr(str, ':') && !strchr(str, '='))); 257 } 258 #else 259 static inline bool is_sdt_event(char *str __maybe_unused) 260 { 261 return false; 262 } 263 #endif /* HAVE_LIBELF_SUPPORT */ 264 265 int perf_pmu__test_parse_init(void); 266 267 struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx, 268 struct perf_event_attr *attr, 269 char *name, struct perf_pmu *pmu, 270 struct list_head *config_terms); 271 272 #endif /* __PERF_PARSE_EVENTS_H */ 273