LXR linux/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 */
   9struct 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
  17struct probe_cache {
  18        int     fd;
  19        struct list_head entries;
  20};
  21
  22enum 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
  38int probe_file__open(int flag);
  39int probe_file__open_both(int *kfd, int *ufd, int flag);
  40struct strlist *probe_file__get_namelist(int fd);
  41struct strlist *probe_file__get_rawlist(int fd);
  42int probe_file__add_event(int fd, struct probe_trace_event *tev);
  43int probe_file__del_events(int fd, struct strfilter *filter);
  44int probe_file__get_events(int fd, struct strfilter *filter,
  45                                  struct strlist *plist);
  46int probe_file__del_strlist(int fd, struct strlist *namelist);
  47
  48int probe_cache_entry__get_event(struct probe_cache_entry *entry,
  49                                 struct probe_trace_event **tevs);
  50
  51struct probe_cache *probe_cache__new(const char *target);
  52int probe_cache__add_entry(struct probe_cache *pcache,
  53                           struct perf_probe_event *pev,
  54                           struct probe_trace_event *tevs, int ntevs);
  55int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname);
  56int probe_cache__commit(struct probe_cache *pcache);
  57void probe_cache__purge(struct probe_cache *pcache);
  58void probe_cache__delete(struct probe_cache *pcache);
  59int probe_cache__filter_purge(struct probe_cache *pcache,
  60                              struct strfilter *filter);
  61struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
  62                                            struct perf_probe_event *pev);
  63struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
  64                                        const char *group, const char *event);
  65int probe_cache__show_all_caches(struct strfilter *filter);
  66bool probe_type_is_available(enum probe_type type);
  67#else   /* ! HAVE_LIBELF_SUPPORT */
  68static 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