/usr/include/x86_64-linux-gnu/lttng/tracepoint-rcu.h is in liblttng-ust-dev 2.10.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | #ifndef _LTTNG_TRACEPOINT_RCU_H
#define _LTTNG_TRACEPOINT_RCU_H
/*
* Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <urcu/compiler.h>
#ifdef _LGPL_SOURCE
#include <urcu-bp.h>
#define tp_rcu_read_lock_bp rcu_read_lock_bp
#define tp_rcu_read_unlock_bp rcu_read_unlock_bp
#define tp_rcu_dereference_bp rcu_dereference
#define TP_RCU_LINK_TEST() 1
#else /* _LGPL_SOURCE */
#define tp_rcu_read_lock_bp tracepoint_dlopen_ptr->rcu_read_lock_sym_bp
#define tp_rcu_read_unlock_bp tracepoint_dlopen_ptr->rcu_read_unlock_sym_bp
#define tp_rcu_dereference_bp(p) \
URCU_FORCE_CAST(__typeof__(p), \
tracepoint_dlopen_ptr->rcu_dereference_sym_bp(URCU_FORCE_CAST(void *, p)))
#define TP_RCU_LINK_TEST() (tracepoint_dlopen_ptr && tp_rcu_read_lock_bp)
#endif /* _LGPL_SOURCE */
#endif /* _LTTNG_TRACEPOINT_RCU_H */
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