1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __PROBE_FILE_H
3*4882a593Smuzhiyun #define __PROBE_FILE_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include "probe-event.h"
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun struct strlist;
8*4882a593Smuzhiyun struct strfilter;
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun /* Cache of probe definitions */
11*4882a593Smuzhiyun struct probe_cache_entry {
12*4882a593Smuzhiyun struct list_head node;
13*4882a593Smuzhiyun bool sdt;
14*4882a593Smuzhiyun struct perf_probe_event pev;
15*4882a593Smuzhiyun char *spev;
16*4882a593Smuzhiyun struct strlist *tevlist;
17*4882a593Smuzhiyun };
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun struct probe_cache {
20*4882a593Smuzhiyun int fd;
21*4882a593Smuzhiyun struct list_head entries;
22*4882a593Smuzhiyun };
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun enum probe_type {
25*4882a593Smuzhiyun PROBE_TYPE_U = 0,
26*4882a593Smuzhiyun PROBE_TYPE_S,
27*4882a593Smuzhiyun PROBE_TYPE_X,
28*4882a593Smuzhiyun PROBE_TYPE_STRING,
29*4882a593Smuzhiyun PROBE_TYPE_BITFIELD,
30*4882a593Smuzhiyun PROBE_TYPE_END,
31*4882a593Smuzhiyun };
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun #define PF_FL_UPROBE 1
34*4882a593Smuzhiyun #define PF_FL_RW 2
35*4882a593Smuzhiyun #define for_each_probe_cache_entry(entry, pcache) \
36*4882a593Smuzhiyun list_for_each_entry(entry, &pcache->entries, node)
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun /* probe-file.c depends on libelf */
39*4882a593Smuzhiyun #ifdef HAVE_LIBELF_SUPPORT
40*4882a593Smuzhiyun int open_trace_file(const char *trace_file, bool readwrite);
41*4882a593Smuzhiyun int probe_file__open(int flag);
42*4882a593Smuzhiyun int probe_file__open_both(int *kfd, int *ufd, int flag);
43*4882a593Smuzhiyun struct strlist *probe_file__get_namelist(int fd);
44*4882a593Smuzhiyun struct strlist *probe_file__get_rawlist(int fd);
45*4882a593Smuzhiyun int probe_file__add_event(int fd, struct probe_trace_event *tev);
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun int probe_file__del_events(int fd, struct strfilter *filter);
48*4882a593Smuzhiyun int probe_file__get_events(int fd, struct strfilter *filter,
49*4882a593Smuzhiyun struct strlist *plist);
50*4882a593Smuzhiyun int probe_file__del_strlist(int fd, struct strlist *namelist);
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun int probe_cache_entry__get_event(struct probe_cache_entry *entry,
53*4882a593Smuzhiyun struct probe_trace_event **tevs);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi);
56*4882a593Smuzhiyun int probe_cache__add_entry(struct probe_cache *pcache,
57*4882a593Smuzhiyun struct perf_probe_event *pev,
58*4882a593Smuzhiyun struct probe_trace_event *tevs, int ntevs);
59*4882a593Smuzhiyun int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname);
60*4882a593Smuzhiyun int probe_cache__commit(struct probe_cache *pcache);
61*4882a593Smuzhiyun void probe_cache__purge(struct probe_cache *pcache);
62*4882a593Smuzhiyun void probe_cache__delete(struct probe_cache *pcache);
63*4882a593Smuzhiyun int probe_cache__filter_purge(struct probe_cache *pcache,
64*4882a593Smuzhiyun struct strfilter *filter);
65*4882a593Smuzhiyun struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
66*4882a593Smuzhiyun struct perf_probe_event *pev);
67*4882a593Smuzhiyun struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
68*4882a593Smuzhiyun const char *group, const char *event);
69*4882a593Smuzhiyun int probe_cache__show_all_caches(struct strfilter *filter);
70*4882a593Smuzhiyun bool probe_type_is_available(enum probe_type type);
71*4882a593Smuzhiyun bool kretprobe_offset_is_supported(void);
72*4882a593Smuzhiyun bool uprobe_ref_ctr_is_supported(void);
73*4882a593Smuzhiyun bool user_access_is_supported(void);
74*4882a593Smuzhiyun bool multiprobe_event_is_supported(void);
75*4882a593Smuzhiyun bool immediate_value_is_supported(void);
76*4882a593Smuzhiyun #else /* ! HAVE_LIBELF_SUPPORT */
probe_cache__new(const char * tgt __maybe_unused,struct nsinfo * nsi __maybe_unused)77*4882a593Smuzhiyun static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused)
78*4882a593Smuzhiyun {
79*4882a593Smuzhiyun return NULL;
80*4882a593Smuzhiyun }
81*4882a593Smuzhiyun #define probe_cache__delete(pcache) do {} while (0)
82*4882a593Smuzhiyun #endif
83*4882a593Smuzhiyun #endif
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