[lttng-ust.git] / liblttng-ust / tracepoint-internal.h

#ifndef _LTTNG_TRACEPOINT_INTERNAL_H
#define _LTTNG_TRACEPOINT_INTERNAL_H

/*
 * Copyright (c) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <urcu/list.h>
#include <urcu-bp.h>
#include <lttng/tracepoint-types.h>

#define TRACE_DEFAULT	TRACE_DEBUG_LINE

struct tracepoint_lib {
	struct cds_list_head list;	/* list of registered libs */
	struct lttng_ust_tracepoint * const *tracepoints_start;
	int tracepoints_count;
	struct cds_list_head callsites;
};

extern int tracepoint_probe_register_noupdate(const char *name,
		void (*callback)(void), void *priv,
		const char *signature);
extern int tracepoint_probe_unregister_noupdate(const char *name,
		void (*callback)(void), void *priv);
extern void tracepoint_probe_update_all(void);
extern int __tracepoint_probe_register_queue_release(const char *name,
		void (*func)(void), void *data, const char *signature);
extern int __tracepoint_probe_unregister_queue_release(const char *name,
		void (*func)(void), void *data);
extern void __tracepoint_probe_prune_release_queue(void);

/*
 * call after disconnection of last probe implemented within a
 * shared object before unmapping the library that contains the probe.
 */
static inline void tracepoint_synchronize_unregister(void)
{
	urcu_bp_synchronize_rcu();
}

extern void init_tracepoint(void);
extern void exit_tracepoint(void);

void *lttng_ust_tp_check_weak_hidden1(void);
void *lttng_ust_tp_check_weak_hidden2(void);
void *lttng_ust_tp_check_weak_hidden3(void);

#endif /* _LTTNG_TRACEPOINT_INTERNAL_H */
Commit	Line	Data
	1	#ifndef _LTTNG_TRACEPOINT_INTERNAL_H
	2	#define _LTTNG_TRACEPOINT_INTERNAL_H
	3
	4	/*
	5	* Copyright (c) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	6	*
	7	* This library is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU Lesser General Public
	9	* License as published by the Free Software Foundation;
	10	* version 2.1 of the License.
	11	*
	12	* This library is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
	18	* License along with this library; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
	22	#include <urcu/list.h>
	23	#include <urcu-bp.h>
	24	#include <lttng/tracepoint-types.h>
	25
	26	#define TRACE_DEFAULT TRACE_DEBUG_LINE
	27
	28	struct tracepoint_lib {
	29	struct cds_list_head list; /* list of registered libs */
	30	struct lttng_ust_tracepoint * const *tracepoints_start;
	31	int tracepoints_count;
	32	struct cds_list_head callsites;
	33	};
	34
	35	extern int tracepoint_probe_register_noupdate(const char *name,
	36	void (callback)(void), void priv,
	37	const char *signature);
	38	extern int tracepoint_probe_unregister_noupdate(const char *name,
	39	void (callback)(void), void priv);
	40	extern void tracepoint_probe_update_all(void);
	41	extern int __tracepoint_probe_register_queue_release(const char *name,
	42	void (func)(void), void data, const char *signature);
	43	extern int __tracepoint_probe_unregister_queue_release(const char *name,
	44	void (func)(void), void data);
	45	extern void __tracepoint_probe_prune_release_queue(void);
	46
	47	/*
	48	* call after disconnection of last probe implemented within a
	49	* shared object before unmapping the library that contains the probe.
	50	*/
	51	static inline void tracepoint_synchronize_unregister(void)
	52	{
	53	urcu_bp_synchronize_rcu();
	54	}
	55
	56	extern void init_tracepoint(void);
	57	extern void exit_tracepoint(void);
	58
	59	void *lttng_ust_tp_check_weak_hidden1(void);
	60	void *lttng_ust_tp_check_weak_hidden2(void);
	61	void *lttng_ust_tp_check_weak_hidden3(void);
	62
	63	#endif /* _LTTNG_TRACEPOINT_INTERNAL_H */