projects / ust.git / blame
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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> | |
| 35 | ||
| 36 | extern void tracepoint_update_probe_range(struct tracepoint * const *begin, | |
| 37 | struct tracepoint * const *end); | |
| 38 | ||
| 39 | extern int tracepoint_probe_register_noupdate(const char *name, void *probe, | |
| 40 | void *data); | |
| 41 | extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe, | |
| 42 | void *data); | |
| 43 | extern void tracepoint_probe_update_all(void); | |
| 44 | ||
| 45 | struct tracepoint_iter { | |
| 46 | struct tracepoint_lib *lib; | |
| 47 | struct tracepoint * const *tracepoint; | |
| 48 | }; | |
| 49 | ||
| 50 | extern void tracepoint_iter_start(struct tracepoint_iter *iter); | |
| 51 | extern void tracepoint_iter_next(struct tracepoint_iter *iter); | |
| 52 | extern void tracepoint_iter_stop(struct tracepoint_iter *iter); | |
| 53 | extern void tracepoint_iter_reset(struct tracepoint_iter *iter); | |
| 54 | extern int tracepoint_get_iter_range(struct tracepoint * const **tracepoint, | |
| 55 | struct tracepoint * const *begin, struct tracepoint * const *end); | |
| 56 | ||
| 57 | /* | |
| 58 | * tracepoint_synchronize_unregister must be called between the last tracepoint | |
| 59 | * probe unregistration and the end of module exit to make sure there is no | |
| 60 | * caller executing a probe when it is freed. | |
| 61 | */ | |
| 62 | static inline void tracepoint_synchronize_unregister(void) | |
| 63 | { | |
| 64 | synchronize_rcu(); | |
| 65 | } | |
| 66 | ||
| 67 | extern void lock_trace_events(void); | |
| 68 | extern void unlock_trace_events(void); | |
| 69 | ||
| 70 | struct trace_event_iter { | |
| 71 | struct trace_event_lib *lib; | |
| 72 | struct trace_event * const *trace_event; | |
| 73 | }; | |
| 74 | ||
| 75 | extern void trace_event_iter_start(struct trace_event_iter *iter); | |
| 76 | extern void trace_event_iter_next(struct trace_event_iter *iter); | |
| 77 | extern void trace_event_iter_reset(struct trace_event_iter *iter); | |
| 78 | ||
| 79 | extern int trace_event_get_iter_range(struct trace_event * const **trace_event, | |
| 80 | struct trace_event * const *begin, | |
| 81 | struct trace_event * const *end); | |
| 82 | ||
| 83 | extern void trace_event_update_process(void); | |
| 84 | extern int is_trace_event_enabled(const char *channel, const char *name); | |
| 85 | ||
| 86 | #endif /* _UST_TRACEPOINT_INTERNAL_H */ |