1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_PARSE_EVENTS_H
3 #define __PERF_PARSE_EVENTS_H
5 * Parse symbolic events/counts passed in as options:
8 #include <linux/list.h>
10 #include <linux/types.h>
11 #include <linux/perf_event.h>
17 struct parse_events_error;
23 const char *event_type(int type);
25 /* Arguments encoded in opt->value. */
26 struct parse_events_option_args {
27 struct evlist **evlistp;
28 const char *pmu_filter;
30 int parse_events_option(const struct option *opt, const char *str, int unset);
31 int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset);
32 __attribute__((nonnull(1, 2, 4)))
33 int __parse_events(struct evlist *evlist, const char *str, const char *pmu_filter,
34 struct parse_events_error *error, struct perf_pmu *fake_pmu,
35 bool warn_if_reordered);
37 __attribute__((nonnull(1, 2, 3)))
38 static inline int parse_events(struct evlist *evlist, const char *str,
39 struct parse_events_error *err)
41 return __parse_events(evlist, str, /*pmu_filter=*/NULL, err, /*fake_pmu=*/NULL,
42 /*warn_if_reordered=*/true);
45 int parse_event(struct evlist *evlist, const char *str);
47 int parse_filter(const struct option *opt, const char *str, int unset);
48 int exclude_perf(const struct option *opt, const char *arg, int unset);
50 enum parse_events__term_val_type {
51 PARSE_EVENTS__TERM_TYPE_NUM,
52 PARSE_EVENTS__TERM_TYPE_STR,
55 enum parse_events__term_type {
56 PARSE_EVENTS__TERM_TYPE_USER,
57 PARSE_EVENTS__TERM_TYPE_CONFIG,
58 PARSE_EVENTS__TERM_TYPE_CONFIG1,
59 PARSE_EVENTS__TERM_TYPE_CONFIG2,
60 PARSE_EVENTS__TERM_TYPE_CONFIG3,
61 PARSE_EVENTS__TERM_TYPE_NAME,
62 PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
63 PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ,
64 PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
65 PARSE_EVENTS__TERM_TYPE_TIME,
66 PARSE_EVENTS__TERM_TYPE_CALLGRAPH,
67 PARSE_EVENTS__TERM_TYPE_STACKSIZE,
68 PARSE_EVENTS__TERM_TYPE_NOINHERIT,
69 PARSE_EVENTS__TERM_TYPE_INHERIT,
70 PARSE_EVENTS__TERM_TYPE_MAX_STACK,
71 PARSE_EVENTS__TERM_TYPE_MAX_EVENTS,
72 PARSE_EVENTS__TERM_TYPE_NOOVERWRITE,
73 PARSE_EVENTS__TERM_TYPE_OVERWRITE,
74 PARSE_EVENTS__TERM_TYPE_DRV_CFG,
75 PARSE_EVENTS__TERM_TYPE_PERCORE,
76 PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT,
77 PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE,
78 PARSE_EVENTS__TERM_TYPE_METRIC_ID,
79 PARSE_EVENTS__TERM_TYPE_RAW,
80 PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
81 PARSE_EVENTS__TERM_TYPE_HARDWARE,
82 #define __PARSE_EVENTS__TERM_TYPE_NR (PARSE_EVENTS__TERM_TYPE_HARDWARE + 1)
85 struct parse_events_term {
86 /** @list: The term list the term is a part of. */
87 struct list_head list;
89 * @config: The left-hand side of a term assignment, so the term
90 * "event=8" would have the config be "event"
94 * @val: The right-hand side of a term assignment that can either be a
95 * string or a number depending on type_val.
101 /** @type_val: The union variable in val to be used for the term. */
102 enum parse_events__term_val_type type_val;
104 * @type_term: A predefined term type or PARSE_EVENTS__TERM_TYPE_USER
107 enum parse_events__term_type type_term;
109 * @err_term: The column index of the term from parsing, used during
114 * @err_val: The column index of the val from parsing, used during error
118 /** @used: Was the term used during parameterized-eval. */
121 * @weak: A term from the sysfs or json encoding of an event that
122 * shouldn't override terms coming from the command line.
126 * @no_value: Is there no value. If a numeric term has no value then the
127 * value is assumed to be 1. An event name also has no value.
132 struct parse_events_error {
133 int num_errors; /* number of errors encountered */
134 int idx; /* index in the parsed string */
135 char *str; /* string to display at the index */
136 char *help; /* optional help string */
137 int first_idx;/* as above, but for the first encountered error */
142 /* A wrapper around a list of terms for the sake of better type safety. */
143 struct parse_events_terms {
144 struct list_head terms;
147 struct parse_events_state {
148 /* The list parsed events are placed on. */
149 struct list_head list;
150 /* The updated index used by entries as they are added. */
152 /* Error information. */
153 struct parse_events_error *error;
154 /* Holds returned terms for term parsing. */
155 struct parse_events_terms *terms;
158 /* Special fake PMU marker for testing. */
159 struct perf_pmu *fake_pmu;
160 /* If non-null, when wildcard matching only match the given PMU. */
161 const char *pmu_filter;
162 /* Should PE_LEGACY_NAME tokens be generated for config terms? */
163 bool match_legacy_cache_terms;
164 /* Were multiple PMUs scanned to find events? */
168 bool parse_events__filter_pmu(const struct parse_events_state *parse_state,
169 const struct perf_pmu *pmu);
170 void parse_events__shrink_config_terms(void);
171 int parse_events__is_hardcoded_term(struct parse_events_term *term);
172 int parse_events_term__num(struct parse_events_term **term,
173 enum parse_events__term_type type_term,
174 const char *config, u64 num,
176 void *loc_term, void *loc_val);
177 int parse_events_term__str(struct parse_events_term **term,
178 enum parse_events__term_type type_term,
179 char *config, char *str,
180 void *loc_term, void *loc_val);
181 int parse_events_term__term(struct parse_events_term **term,
182 enum parse_events__term_type term_lhs,
183 enum parse_events__term_type term_rhs,
184 void *loc_term, void *loc_val);
185 int parse_events_term__clone(struct parse_events_term **new,
186 struct parse_events_term *term);
187 void parse_events_term__delete(struct parse_events_term *term);
189 void parse_events_terms__delete(struct parse_events_terms *terms);
190 void parse_events_terms__init(struct parse_events_terms *terms);
191 void parse_events_terms__exit(struct parse_events_terms *terms);
192 int parse_events_terms(struct parse_events_terms *terms, const char *str, FILE *input);
193 int parse_events_terms__to_strbuf(const struct parse_events_terms *terms, struct strbuf *sb);
194 int parse_events__modifier_event(struct list_head *list, char *str, bool add);
195 int parse_events__modifier_group(struct list_head *list, char *event_mod);
196 int parse_events_name(struct list_head *list, const char *name);
197 int parse_events_add_tracepoint(struct list_head *list, int *idx,
198 const char *sys, const char *event,
199 struct parse_events_error *error,
200 struct parse_events_terms *head_config, void *loc);
201 int parse_events_add_numeric(struct parse_events_state *parse_state,
202 struct list_head *list,
203 u32 type, u64 config,
204 struct parse_events_terms *head_config,
206 int parse_events_add_tool(struct parse_events_state *parse_state,
207 struct list_head *list,
209 int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
210 struct parse_events_state *parse_state,
211 struct parse_events_terms *head_config);
212 int parse_events__decode_legacy_cache(const char *name, int pmu_type, __u64 *config);
213 int parse_events_add_breakpoint(struct parse_events_state *parse_state,
214 struct list_head *list,
215 u64 addr, char *type, u64 len,
216 struct parse_events_terms *head_config);
217 int parse_events_add_pmu(struct parse_events_state *parse_state,
218 struct list_head *list, const char *name,
219 const struct parse_events_terms *const_parsed_terms,
220 bool auto_merge_stats, void *loc);
222 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
223 const char *name, const char *metric_id,
224 struct perf_pmu *pmu);
226 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
227 const char *event_name,
228 const struct parse_events_terms *const_parsed_terms,
229 struct list_head **listp, void *loc);
231 void parse_events__set_leader(char *name, struct list_head *list);
232 void parse_events_update_lists(struct list_head *list_event,
233 struct list_head *list_all);
234 void parse_events_evlist_error(struct parse_events_state *parse_state,
235 int idx, const char *str);
237 struct event_symbol {
241 extern struct event_symbol event_symbols_hw[];
242 extern struct event_symbol event_symbols_sw[];
244 char *parse_events_formats_error_string(char *additional_terms);
246 void parse_events_error__init(struct parse_events_error *err);
247 void parse_events_error__exit(struct parse_events_error *err);
248 void parse_events_error__handle(struct parse_events_error *err, int idx,
249 char *str, char *help);
250 void parse_events_error__print(struct parse_events_error *err,
253 #ifdef HAVE_LIBELF_SUPPORT
255 * If the probe point starts with '%',
256 * or starts with "sdt_" and has a ':' but no '=',
257 * then it should be a SDT/cached probe point.
259 static inline bool is_sdt_event(char *str)
261 return (str[0] == '%' ||
262 (!strncmp(str, "sdt_", 4) &&
263 !!strchr(str, ':') && !strchr(str, '=')));
266 static inline bool is_sdt_event(char *str __maybe_unused)
270 #endif /* HAVE_LIBELF_SUPPORT */
272 #endif /* __PERF_PARSE_EVENTS_H */