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Linux/tools/perf/util/parse-events.h

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  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_evlist {
112         struct list_head           list;
113         int                        idx;
114         int                        nr_groups;
115         struct parse_events_error *error;
116         struct perf_evlist        *evlist;
117 };
118 
119 struct parse_events_terms {
120         struct list_head *terms;
121 };
122 
123 void parse_events__shrink_config_terms(void);
124 int parse_events__is_hardcoded_term(struct parse_events_term *term);
125 int parse_events_term__num(struct parse_events_term **term,
126                            int type_term, char *config, u64 num,
127                            bool novalue,
128                            void *loc_term, void *loc_val);
129 int parse_events_term__str(struct parse_events_term **term,
130                            int type_term, char *config, char *str,
131                            void *loc_term, void *loc_val);
132 int parse_events_term__sym_hw(struct parse_events_term **term,
133                               char *config, unsigned idx);
134 int parse_events_term__clone(struct parse_events_term **new,
135                              struct parse_events_term *term);
136 void parse_events_terms__delete(struct list_head *terms);
137 void parse_events_terms__purge(struct list_head *terms);
138 void parse_events__clear_array(struct parse_events_array *a);
139 int parse_events__modifier_event(struct list_head *list, char *str, bool add);
140 int parse_events__modifier_group(struct list_head *list, char *event_mod);
141 int parse_events_name(struct list_head *list, char *name);
142 int parse_events_add_tracepoint(struct list_head *list, int *idx,
143                                 const char *sys, const char *event,
144                                 struct parse_events_error *error,
145                                 struct list_head *head_config);
146 int parse_events_load_bpf(struct parse_events_evlist *data,
147                           struct list_head *list,
148                           char *bpf_file_name,
149                           bool source,
150                           struct list_head *head_config);
151 /* Provide this function for perf test */
152 struct bpf_object;
153 int parse_events_load_bpf_obj(struct parse_events_evlist *data,
154                               struct list_head *list,
155                               struct bpf_object *obj,
156                               struct list_head *head_config);
157 int parse_events_add_numeric(struct parse_events_evlist *data,
158                              struct list_head *list,
159                              u32 type, u64 config,
160                              struct list_head *head_config);
161 int parse_events_add_cache(struct list_head *list, int *idx,
162                            char *type, char *op_result1, char *op_result2,
163                            struct parse_events_error *error,
164                            struct list_head *head_config);
165 int parse_events_add_breakpoint(struct list_head *list, int *idx,
166                                 void *ptr, char *type, u64 len);
167 int parse_events_add_pmu(struct parse_events_evlist *data,
168                          struct list_head *list, char *name,
169                          struct list_head *head_config);
170 
171 int parse_events_multi_pmu_add(struct parse_events_evlist *data,
172                                char *str,
173                                struct list_head **listp);
174 
175 int parse_events_copy_term_list(struct list_head *old,
176                                  struct list_head **new);
177 
178 enum perf_pmu_event_symbol_type
179 perf_pmu__parse_check(const char *name);
180 void parse_events__set_leader(char *name, struct list_head *list);
181 void parse_events_update_lists(struct list_head *list_event,
182                                struct list_head *list_all);
183 void parse_events_evlist_error(struct parse_events_evlist *data,
184                                int idx, const char *str);
185 
186 void print_events(const char *event_glob, bool name_only, bool quiet,
187                   bool long_desc, bool details_flag);
188 
189 struct event_symbol {
190         const char      *symbol;
191         const char      *alias;
192 };
193 extern struct event_symbol event_symbols_hw[];
194 extern struct event_symbol event_symbols_sw[];
195 void print_symbol_events(const char *event_glob, unsigned type,
196                                 struct event_symbol *syms, unsigned max,
197                                 bool name_only);
198 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
199                              bool name_only);
200 int print_hwcache_events(const char *event_glob, bool name_only);
201 void print_sdt_events(const char *subsys_glob, const char *event_glob,
202                       bool name_only);
203 int is_valid_tracepoint(const char *event_string);
204 
205 int valid_event_mount(const char *eventfs);
206 char *parse_events_formats_error_string(char *additional_terms);
207 
208 #ifdef HAVE_LIBELF_SUPPORT
209 /*
210  * If the probe point starts with '%',
211  * or starts with "sdt_" and has a ':' but no '=',
212  * then it should be a SDT/cached probe point.
213  */
214 static inline bool is_sdt_event(char *str)
215 {
216         return (str[0] == '%' ||
217                 (!strncmp(str, "sdt_", 4) &&
218                  !!strchr(str, ':') && !strchr(str, '=')));
219 }
220 #else
221 static inline bool is_sdt_event(char *str __maybe_unused)
222 {
223         return false;
224 }
225 #endif /* HAVE_LIBELF_SUPPORT */
226 
227 #endif /* __PERF_PARSE_EVENTS_H */
228 

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