/usr/src/lttng-modules-2.7.1/wrapper/perf.h is in lttng-modules-dkms 2.7.1-1.
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 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | #ifndef _LTTNG_WRAPPER_PERF_H
#define _LTTNG_WRAPPER_PERF_H
/*
* wrapper/perf.h
*
* Copyright (C) 2010-2012 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; only
* 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 <linux/perf_event.h>
#ifdef CONFIG_PERF_EVENTS
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
static inline struct perf_event *
wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
int cpu,
struct task_struct *task,
perf_overflow_handler_t callback)
{
return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL);
}
#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
static inline struct perf_event *
wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
int cpu,
struct task_struct *task,
perf_overflow_handler_t callback)
{
return perf_event_create_kernel_counter(attr, cpu, task, callback);
}
#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */
static inline struct perf_event *
wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
int cpu,
struct task_struct *task,
perf_overflow_handler_t callback)
{
pid_t pid;
if (!task)
pid = -1;
else
pid = task->pid;
return perf_event_create_kernel_counter(attr, cpu, pid, callback);
}
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36))
#define local64_read(l) atomic64_read(l)
#endif
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */
#endif /* CONFIG_PERF_EVENTS */
#endif /* _LTTNG_WRAPPER_PERF_H */
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