1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef __PROBE_FILE_H |
3 | #define __PROBE_FILE_H |
4 | |
5 | #include "probe-event.h" |
6 | |
7 | struct strlist; |
8 | struct strfilter; |
9 | |
10 | /* Cache of probe definitions */ |
11 | struct 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 | |
19 | struct probe_cache { |
20 | int fd; |
21 | struct list_head entries; |
22 | }; |
23 | |
24 | enum 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 1 |
34 | #define PF_FL_RW 2 |
35 | #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_SUPPORT |
40 | int open_trace_file(const char *trace_file, bool readwrite); |
41 | int probe_file__open(int flag); |
42 | int probe_file__open_both(int *kfd, int *ufd, int flag); |
43 | struct strlist *probe_file__get_namelist(int fd); |
44 | struct strlist *probe_file__get_rawlist(int fd); |
45 | int probe_file__add_event(int fd, struct probe_trace_event *tev); |
46 | |
47 | int probe_file__del_events(int fd, struct strfilter *filter); |
48 | int probe_file__get_events(int fd, struct strfilter *filter, |
49 | struct strlist *plist); |
50 | int probe_file__del_strlist(int fd, struct strlist *namelist); |
51 | |
52 | int probe_cache_entry__get_event(struct probe_cache_entry *entry, |
53 | struct probe_trace_event **tevs); |
54 | |
55 | struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi); |
56 | int probe_cache__add_entry(struct probe_cache *pcache, |
57 | struct perf_probe_event *pev, |
58 | struct probe_trace_event *tevs, int ntevs); |
59 | int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname); |
60 | int probe_cache__commit(struct probe_cache *pcache); |
61 | void probe_cache__purge(struct probe_cache *pcache); |
62 | void probe_cache__delete(struct probe_cache *pcache); |
63 | int probe_cache__filter_purge(struct probe_cache *pcache, |
64 | struct strfilter *filter); |
65 | struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache, |
66 | struct perf_probe_event *pev); |
67 | struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache, |
68 | const char *group, const char *event); |
69 | int probe_cache__show_all_caches(struct strfilter *filter); |
70 | bool probe_type_is_available(enum probe_type type); |
71 | bool kretprobe_offset_is_supported(void); |
72 | bool uprobe_ref_ctr_is_supported(void); |
73 | bool user_access_is_supported(void); |
74 | bool multiprobe_event_is_supported(void); |
75 | bool immediate_value_is_supported(void); |
76 | #else /* ! HAVE_LIBELF_SUPPORT */ |
77 | static 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 | #endif |
83 | #endif |
84 | |