1 #ifndef __PROBE_FILE_H 2 #define __PROBE_FILE_H 3 4 #include "strlist.h" 5 #include "strfilter.h" 6 #include "probe-event.h" 7 8 /* Cache of probe definitions */ 9 struct probe_cache_entry { 10 struct list_head node; 11 bool sdt; 12 struct perf_probe_event pev; 13 char *spev; 14 struct strlist *tevlist; 15 }; 16 17 struct probe_cache { 18 int fd; 19 struct list_head entries; 20 }; 21 22 enum probe_type { 23 PROBE_TYPE_U = 0, 24 PROBE_TYPE_S, 25 PROBE_TYPE_X, 26 PROBE_TYPE_STRING, 27 PROBE_TYPE_BITFIELD, 28 PROBE_TYPE_END, 29 }; 30 31 #define PF_FL_UPROBE 1 32 #define PF_FL_RW 2 33 #define for_each_probe_cache_entry(entry, pcache) \ 34 list_for_each_entry(entry, &pcache->entries, node) 35 36 /* probe-file.c depends on libelf */ 37 #ifdef HAVE_LIBELF_SUPPORT 38 int probe_file__open(int flag); 39 int probe_file__open_both(int *kfd, int *ufd, int flag); 40 struct strlist *probe_file__get_namelist(int fd); 41 struct strlist *probe_file__get_rawlist(int fd); 42 int probe_file__add_event(int fd, struct probe_trace_event *tev); 43 int probe_file__del_events(int fd, struct strfilter *filter); 44 int probe_file__get_events(int fd, struct strfilter *filter, 45 struct strlist *plist); 46 int probe_file__del_strlist(int fd, struct strlist *namelist); 47 48 int probe_cache_entry__get_event(struct probe_cache_entry *entry, 49 struct probe_trace_event **tevs); 50 51 struct probe_cache *probe_cache__new(const char *target); 52 int probe_cache__add_entry(struct probe_cache *pcache, 53 struct perf_probe_event *pev, 54 struct probe_trace_event *tevs, int ntevs); 55 int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname); 56 int probe_cache__commit(struct probe_cache *pcache); 57 void probe_cache__purge(struct probe_cache *pcache); 58 void probe_cache__delete(struct probe_cache *pcache); 59 int probe_cache__filter_purge(struct probe_cache *pcache, 60 struct strfilter *filter); 61 struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache, 62 struct perf_probe_event *pev); 63 struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache, 64 const char *group, const char *event); 65 int probe_cache__show_all_caches(struct strfilter *filter); 66 bool probe_type_is_available(enum probe_type type); 67 #else /* ! HAVE_LIBELF_SUPPORT */ 68 static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused) 69 { 70 return NULL; 71 } 72 #define probe_cache__delete(pcache) do {} while (0) 73 #endif 74 #endif 75