1 #ifndef __PROBE_FILE_H 2 #define __PROBE_FILE_H 3 4 #include "probe-event.h" 5 6 struct strlist; 7 struct strfilter; 8 9 /* Cache of probe definitions */ 10 struct probe_cache_entry { 11 struct list_head node; 12 bool sdt; 13 struct perf_probe_event pev; 14 char *spev; 15 struct strlist *tevlist; 16 }; 17 18 struct probe_cache { 19 int fd; 20 struct list_head entries; 21 }; 22 23 enum probe_type { 24 PROBE_TYPE_U = 0, 25 PROBE_TYPE_S, 26 PROBE_TYPE_X, 27 PROBE_TYPE_STRING, 28 PROBE_TYPE_BITFIELD, 29 PROBE_TYPE_END, 30 }; 31 32 #define PF_FL_UPROBE 1 33 #define PF_FL_RW 2 34 #define for_each_probe_cache_entry(entry, pcache) \ 35 list_for_each_entry(entry, &pcache->entries, node) 36 37 /* probe-file.c depends on libelf */ 38 #ifdef HAVE_LIBELF_SUPPORT 39 int open_trace_file(const char *trace_file, bool readwrite); 40 int probe_file__open(int flag); 41 int probe_file__open_both(int *kfd, int *ufd, int flag); 42 struct strlist *probe_file__get_namelist(int fd); 43 struct strlist *probe_file__get_rawlist(int fd); 44 int probe_file__add_event(int fd, struct probe_trace_event *tev); 45 46 int probe_file__del_events(int fd, struct strfilter *filter); 47 int probe_file__get_events(int fd, struct strfilter *filter, 48 struct strlist *plist); 49 int probe_file__del_strlist(int fd, struct strlist *namelist); 50 51 int probe_cache_entry__get_event(struct probe_cache_entry *entry, 52 struct probe_trace_event **tevs); 53 54 struct probe_cache *probe_cache__new(const char *target); 55 int probe_cache__add_entry(struct probe_cache *pcache, 56 struct perf_probe_event *pev, 57 struct probe_trace_event *tevs, int ntevs); 58 int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname); 59 int probe_cache__commit(struct probe_cache *pcache); 60 void probe_cache__purge(struct probe_cache *pcache); 61 void probe_cache__delete(struct probe_cache *pcache); 62 int probe_cache__filter_purge(struct probe_cache *pcache, 63 struct strfilter *filter); 64 struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache, 65 struct perf_probe_event *pev); 66 struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache, 67 const char *group, const char *event); 68 int probe_cache__show_all_caches(struct strfilter *filter); 69 bool probe_type_is_available(enum probe_type type); 70 bool kretprobe_offset_is_supported(void); 71 #else /* ! HAVE_LIBELF_SUPPORT */ 72 static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused) 73 { 74 return NULL; 75 } 76 #define probe_cache__delete(pcache) do {} while (0) 77 #endif 78 #endif 79