1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * dlfilter.h: Interface to perf script --dlfilter shared object |
4 | * Copyright (c) 2021, Intel Corporation. |
5 | */ |
6 | |
7 | #ifndef PERF_UTIL_DLFILTER_H |
8 | #define PERF_UTIL_DLFILTER_H |
9 | |
10 | struct perf_session; |
11 | union perf_event; |
12 | struct perf_sample; |
13 | struct evsel; |
14 | struct machine; |
15 | struct addr_location; |
16 | struct perf_dlfilter_fns; |
17 | struct perf_dlfilter_sample; |
18 | struct perf_dlfilter_al; |
19 | |
20 | struct dlfilter { |
21 | char *file; |
22 | void *handle; |
23 | void *data; |
24 | struct perf_session *session; |
25 | bool ctx_valid; |
26 | bool in_start; |
27 | bool in_stop; |
28 | int dlargc; |
29 | char **dlargv; |
30 | |
31 | union perf_event *event; |
32 | struct perf_sample *sample; |
33 | struct evsel *evsel; |
34 | struct machine *machine; |
35 | struct addr_location *al; |
36 | struct addr_location *addr_al; |
37 | struct perf_dlfilter_sample *d_sample; |
38 | struct perf_dlfilter_al *d_ip_al; |
39 | struct perf_dlfilter_al *d_addr_al; |
40 | |
41 | int (*start)(void **data, void *ctx); |
42 | int (*stop)(void *data, void *ctx); |
43 | |
44 | int (*filter_event)(void *data, |
45 | const struct perf_dlfilter_sample *sample, |
46 | void *ctx); |
47 | int (*filter_event_early)(void *data, |
48 | const struct perf_dlfilter_sample *sample, |
49 | void *ctx); |
50 | |
51 | struct perf_dlfilter_fns *fns; |
52 | }; |
53 | |
54 | struct dlfilter *dlfilter__new(const char *file, int dlargc, char **dlargv); |
55 | |
56 | int dlfilter__start(struct dlfilter *d, struct perf_session *session); |
57 | |
58 | int dlfilter__do_filter_event(struct dlfilter *d, |
59 | union perf_event *event, |
60 | struct perf_sample *sample, |
61 | struct evsel *evsel, |
62 | struct machine *machine, |
63 | struct addr_location *al, |
64 | struct addr_location *addr_al, |
65 | bool early); |
66 | |
67 | void dlfilter__cleanup(struct dlfilter *d); |
68 | |
69 | static inline int dlfilter__filter_event(struct dlfilter *d, |
70 | union perf_event *event, |
71 | struct perf_sample *sample, |
72 | struct evsel *evsel, |
73 | struct machine *machine, |
74 | struct addr_location *al, |
75 | struct addr_location *addr_al) |
76 | { |
77 | if (!d || !d->filter_event) |
78 | return 0; |
79 | return dlfilter__do_filter_event(d, event, sample, evsel, machine, al, addr_al, early: false); |
80 | } |
81 | |
82 | static inline int dlfilter__filter_event_early(struct dlfilter *d, |
83 | union perf_event *event, |
84 | struct perf_sample *sample, |
85 | struct evsel *evsel, |
86 | struct machine *machine, |
87 | struct addr_location *al, |
88 | struct addr_location *addr_al) |
89 | { |
90 | if (!d || !d->filter_event_early) |
91 | return 0; |
92 | return dlfilter__do_filter_event(d, event, sample, evsel, machine, al, addr_al, early: true); |
93 | } |
94 | |
95 | int list_available_dlfilters(const struct option *opt, const char *s, int unset); |
96 | bool get_filter_desc(const char *dirname, const char *name, char **desc, |
97 | char **long_desc); |
98 | |
99 | #endif |
100 | |