tools/perf/util/probe-file.h

   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