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