1 #ifndef _UST_TRACEPOINT_INTERNAL_H
2 #define _UST_TRACEPOINT_INTERNAL_H
5 * tracepoint-internal.h
7 * Tracepoint internal header.
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>
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.
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.
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
27 * Heavily inspired from the Linux Kernel Markers.
29 * Ported to userspace by Pierre-Marc Fournier.
34 #include <urcu/list.h>
35 #include <ust/tracepoint.h>
37 extern void tracepoint_update_probe_range(struct tracepoint
* const *begin
,
38 struct tracepoint
* const *end
);
40 extern int tracepoint_probe_register_noupdate(const char *name
, void *probe
,
42 extern int tracepoint_probe_unregister_noupdate(const char *name
, void *probe
,
44 extern void tracepoint_probe_update_all(void);
46 struct tracepoint_iter
{
47 struct tracepoint_lib
*lib
;
48 struct tracepoint
* const *tracepoint
;
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
);
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.
63 static inline void tracepoint_synchronize_unregister(void)
68 extern void lock_trace_events(void);
69 extern void unlock_trace_events(void);
71 struct trace_event_iter
{
72 struct trace_event_lib
*lib
;
73 struct trace_event
* const *trace_event
;
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
);
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
);
84 extern void trace_event_update_process(void);
85 extern int is_trace_event_enabled(const char *channel
, const char *name
);
87 #endif /* _UST_TRACEPOINT_INTERNAL_H */
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