Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PROBE_FILE_H
3#define __PROBE_FILE_H
4
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 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
40int 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__get_events(int fd, struct strfilter *filter,
48 struct strlist *plist);
49int probe_file__del_strlist(int fd, struct strlist *namelist);
50
51int probe_cache_entry__get_event(struct probe_cache_entry *entry,
52 struct probe_trace_event **tevs);
53
54struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi);
55int probe_cache__add_entry(struct probe_cache *pcache,
56 struct perf_probe_event *pev,
57 struct probe_trace_event *tevs, int ntevs);
58int probe_cache__scan_sdt(struct probe_cache *pcache, const char *pathname);
59int probe_cache__commit(struct probe_cache *pcache);
60void probe_cache__purge(struct probe_cache *pcache);
61void probe_cache__delete(struct probe_cache *pcache);
62int probe_cache__filter_purge(struct probe_cache *pcache,
63 struct strfilter *filter);
64struct probe_cache_entry *probe_cache__find(struct probe_cache *pcache,
65 struct perf_probe_event *pev);
66struct probe_cache_entry *probe_cache__find_by_name(struct probe_cache *pcache,
67 const char *group, const char *event);
68int probe_cache__show_all_caches(struct strfilter *filter);
69bool probe_type_is_available(enum probe_type type);
70bool kretprobe_offset_is_supported(void);
71bool uprobe_ref_ctr_is_supported(void);
72bool user_access_is_supported(void);
73bool multiprobe_event_is_supported(void);
74bool immediate_value_is_supported(void);
75#else /* ! HAVE_LIBELF_SUPPORT */
76static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused)
77{
78 return NULL;
79}
80#define probe_cache__delete(pcache) do {} while (0)
81#endif
82#endif