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1 | #ifndef _UST_TRACEPOINT_INTERNAL_H |
2 | #define _UST_TRACEPOINT_INTERNAL_H | |
3 | ||
4 | /* | |
5 | * tracepoint-internal.h | |
6 | * | |
7 | * Tracepoint internal header. | |
8 | * | |
9 | * Copyright (C) 2008 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> | |
10 | * Copyright (C) 2009 Pierre-Marc Fournier | |
11 | * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org> | |
12 | * | |
13 | * This library is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU Lesser General Public | |
15 | * License as published by the Free Software Foundation; | |
16 | * version 2.1 of the License. | |
17 | * | |
18 | * This library is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 | * Lesser General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU Lesser General Public | |
24 | * License along with this library; if not, write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
26 | * | |
27 | * Heavily inspired from the Linux Kernel Markers. | |
28 | * | |
29 | * Ported to userspace by Pierre-Marc Fournier. | |
30 | */ | |
31 | ||
32 | #include <urcu-bp.h> | |
33 | #include <ust/core.h> | |
34 | #include <urcu/list.h> | |
535b0d0a | 35 | #include <ust/tracepoint.h> |
81614639 MD |
36 | |
37 | extern void tracepoint_update_probe_range(struct tracepoint * const *begin, | |
38 | struct tracepoint * const *end); | |
39 | ||
40 | extern int tracepoint_probe_register_noupdate(const char *name, void *probe, | |
41 | void *data); | |
42 | extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe, | |
43 | void *data); | |
44 | extern void tracepoint_probe_update_all(void); | |
45 | ||
46 | struct tracepoint_iter { | |
47 | struct tracepoint_lib *lib; | |
48 | struct tracepoint * const *tracepoint; | |
49 | }; | |
50 | ||
51 | extern void tracepoint_iter_start(struct tracepoint_iter *iter); | |
52 | extern void tracepoint_iter_next(struct tracepoint_iter *iter); | |
53 | extern void tracepoint_iter_stop(struct tracepoint_iter *iter); | |
54 | extern void tracepoint_iter_reset(struct tracepoint_iter *iter); | |
55 | extern int tracepoint_get_iter_range(struct tracepoint * const **tracepoint, | |
56 | struct tracepoint * const *begin, struct tracepoint * const *end); | |
57 | ||
58 | /* | |
59 | * tracepoint_synchronize_unregister must be called between the last tracepoint | |
60 | * probe unregistration and the end of module exit to make sure there is no | |
61 | * caller executing a probe when it is freed. | |
62 | */ | |
63 | static inline void tracepoint_synchronize_unregister(void) | |
64 | { | |
65 | synchronize_rcu(); | |
66 | } | |
67 | ||
68 | extern void lock_trace_events(void); | |
69 | extern void unlock_trace_events(void); | |
70 | ||
71 | struct trace_event_iter { | |
72 | struct trace_event_lib *lib; | |
73 | struct trace_event * const *trace_event; | |
74 | }; | |
75 | ||
76 | extern void trace_event_iter_start(struct trace_event_iter *iter); | |
77 | extern void trace_event_iter_next(struct trace_event_iter *iter); | |
78 | extern void trace_event_iter_reset(struct trace_event_iter *iter); | |
79 | ||
80 | extern int trace_event_get_iter_range(struct trace_event * const **trace_event, | |
81 | struct trace_event * const *begin, | |
82 | struct trace_event * const *end); | |
83 | ||
84 | extern void trace_event_update_process(void); | |
85 | extern int is_trace_event_enabled(const char *channel, const char *name); | |
86 | ||
87 | #endif /* _UST_TRACEPOINT_INTERNAL_H */ |