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 perf_evsel; 16 struct perf_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 perf_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_NR, 79 }; 80 81 struct parse_events_array { 82 size_t nr_ranges; 83 struct { 84 unsigned int start; 85 size_t length; 86 } *ranges; 87 }; 88 89 struct parse_events_term { 90 char *config; 91 struct parse_events_array array; 92 union { 93 char *str; 94 u64 num; 95 } val; 96 int type_val; 97 int type_term; 98 struct list_head list; 99 bool used; 100 bool no_value; 101 102 /* error string indexes for within parsed string */ 103 int err_term; 104 int err_val; 105 106 /* Coming from implicit alias */ 107 bool weak; 108 }; 109 110 struct parse_events_error { 111 int idx; /* index in the parsed string */ 112 char *str; /* string to display at the index */ 113 char *help; /* optional help string */ 114 }; 115 116 struct parse_events_state { 117 struct list_head list; 118 int idx; 119 int nr_groups; 120 struct parse_events_error *error; 121 struct perf_evlist *evlist; 122 struct list_head *terms; 123 }; 124 125 void parse_events__shrink_config_terms(void); 126 int parse_events__is_hardcoded_term(struct parse_events_term *term); 127 int parse_events_term__num(struct parse_events_term **term, 128 int type_term, char *config, u64 num, 129 bool novalue, 130 void *loc_term, void *loc_val); 131 int parse_events_term__str(struct parse_events_term **term, 132 int type_term, char *config, char *str, 133 void *loc_term, void *loc_val); 134 int parse_events_term__sym_hw(struct parse_events_term **term, 135 char *config, unsigned idx); 136 int parse_events_term__clone(struct parse_events_term **new, 137 struct parse_events_term *term); 138 void parse_events_terms__delete(struct list_head *terms); 139 void parse_events_terms__purge(struct list_head *terms); 140 void parse_events__clear_array(struct parse_events_array *a); 141 int parse_events__modifier_event(struct list_head *list, char *str, bool add); 142 int parse_events__modifier_group(struct list_head *list, char *event_mod); 143 int parse_events_name(struct list_head *list, char *name); 144 int parse_events_add_tracepoint(struct list_head *list, int *idx, 145 const char *sys, const char *event, 146 struct parse_events_error *error, 147 struct list_head *head_config); 148 int parse_events_load_bpf(struct parse_events_state *parse_state, 149 struct list_head *list, 150 char *bpf_file_name, 151 bool source, 152 struct list_head *head_config); 153 /* Provide this function for perf test */ 154 struct bpf_object; 155 int parse_events_load_bpf_obj(struct parse_events_state *parse_state, 156 struct list_head *list, 157 struct bpf_object *obj, 158 struct list_head *head_config); 159 int parse_events_add_numeric(struct parse_events_state *parse_state, 160 struct list_head *list, 161 u32 type, u64 config, 162 struct list_head *head_config); 163 int parse_events_add_cache(struct list_head *list, int *idx, 164 char *type, char *op_result1, char *op_result2, 165 struct parse_events_error *error, 166 struct list_head *head_config); 167 int parse_events_add_breakpoint(struct list_head *list, int *idx, 168 void *ptr, char *type, u64 len); 169 int parse_events_add_pmu(struct parse_events_state *parse_state, 170 struct list_head *list, char *name, 171 struct list_head *head_config, 172 bool auto_merge_stats, 173 bool use_alias); 174 175 int parse_events_multi_pmu_add(struct parse_events_state *parse_state, 176 char *str, 177 struct list_head **listp); 178 179 int parse_events_copy_term_list(struct list_head *old, 180 struct list_head **new); 181 182 enum perf_pmu_event_symbol_type 183 perf_pmu__parse_check(const char *name); 184 void parse_events__set_leader(char *name, struct list_head *list, 185 struct parse_events_state *parse_state); 186 void parse_events_update_lists(struct list_head *list_event, 187 struct list_head *list_all); 188 void parse_events_evlist_error(struct parse_events_state *parse_state, 189 int idx, const char *str); 190 191 void print_events(const char *event_glob, bool name_only, bool quiet, 192 bool long_desc, bool details_flag); 193 194 struct event_symbol { 195 const char *symbol; 196 const char *alias; 197 }; 198 extern struct event_symbol event_symbols_hw[]; 199 extern struct event_symbol event_symbols_sw[]; 200 void print_symbol_events(const char *event_glob, unsigned type, 201 struct event_symbol *syms, unsigned max, 202 bool name_only); 203 void print_tracepoint_events(const char *subsys_glob, const char *event_glob, 204 bool name_only); 205 int print_hwcache_events(const char *event_glob, bool name_only); 206 void print_sdt_events(const char *subsys_glob, const char *event_glob, 207 bool name_only); 208 int is_valid_tracepoint(const char *event_string); 209 210 int valid_event_mount(const char *eventfs); 211 char *parse_events_formats_error_string(char *additional_terms); 212 213 void parse_events_print_error(struct parse_events_error *err, 214 const char *event); 215 216 #ifdef HAVE_LIBELF_SUPPORT 217 /* 218 * If the probe point starts with '%', 219 * or starts with "sdt_" and has a ':' but no '=', 220 * then it should be a SDT/cached probe point. 221 */ 222 static inline bool is_sdt_event(char *str) 223 { 224 return (str[0] == '%' || 225 (!strncmp(str, "sdt_", 4) && 226 !!strchr(str, ':') && !strchr(str, '='))); 227 } 228 #else 229 static inline bool is_sdt_event(char *str __maybe_unused) 230 { 231 return false; 232 } 233 #endif /* HAVE_LIBELF_SUPPORT */ 234 235 #endif /* __PERF_PARSE_EVENTS_H */ 236