84 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PROBE_FILE_H3#define __PROBE_FILE_H4 5#include "probe-event.h"6 7struct strlist;8struct strfilter;9 10/* Cache of probe definitions */11struct probe_cache_entry {12 struct list_head node;13 bool sdt;14 struct perf_probe_event pev;15 char *spev;16 struct strlist *tevlist;17};18 19struct probe_cache {20 int fd;21 struct list_head entries;22};23 24enum probe_type {25 PROBE_TYPE_U = 0,26 PROBE_TYPE_S,27 PROBE_TYPE_X,28 PROBE_TYPE_STRING,29 PROBE_TYPE_BITFIELD,30 PROBE_TYPE_END,31};32 33#define PF_FL_UPROBE 134#define PF_FL_RW 235#define for_each_probe_cache_entry(entry, pcache) \36 list_for_each_entry(entry, &pcache->entries, node)37 38/* probe-file.c depends on libelf */39#ifdef HAVE_LIBELF_SUPPORT40int open_trace_file(const char *trace_file, bool readwrite);41int probe_file__open(int flag);42int probe_file__open_both(int *kfd, int *ufd, int flag);43struct strlist *probe_file__get_namelist(int fd);44struct strlist *probe_file__get_rawlist(int fd);45int probe_file__add_event(int fd, struct probe_trace_event *tev);46 47int probe_file__del_events(int fd, struct strfilter *filter);48int probe_file__get_events(int fd, struct strfilter *filter,49 struct strlist *plist);50int probe_file__del_strlist(int fd, struct strlist *namelist);51 52int probe_cache_entry__get_event(struct probe_cache_entry *entry,53 struct probe_trace_event **tevs);54 55struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi);56int probe_cache__add_entry(struct probe_cache *pcache,57 struct perf_probe_event *pev,58 struct probe_trace_event *tevs, int ntevs);59int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname);60int probe_cache__commit(struct probe_cache *pcache);61void probe_cache__purge(struct probe_cache *pcache);62void probe_cache__delete(struct probe_cache *pcache);63int probe_cache__filter_purge(struct probe_cache *pcache,64 struct strfilter *filter);65struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,66 struct perf_probe_event *pev);67struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,68 const char *group, const char *event);69int probe_cache__show_all_caches(struct strfilter *filter);70bool probe_type_is_available(enum probe_type type);71bool kretprobe_offset_is_supported(void);72bool uprobe_ref_ctr_is_supported(void);73bool user_access_is_supported(void);74bool multiprobe_event_is_supported(void);75bool immediate_value_is_supported(void);76#else /* ! HAVE_LIBELF_SUPPORT */77static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused)78{79 return NULL;80}81#define probe_cache__delete(pcache) do {} while (0)82#endif83#endif84