projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| a90917c3 MD |
1 | #ifndef _LTTNG_WRAPPER_PERF_H |
| 2 | #define _LTTNG_WRAPPER_PERF_H | |
| 90f5546c MD |
3 | |
| 4 | /* | |
| 886d51a3 | 5 | * wrapper/perf.h |
| 90f5546c | 6 | * |
| 886d51a3 MD |
7 | * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 8 | * | |
| 9 | * This library is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU Lesser General Public | |
| 11 | * License as published by the Free Software Foundation; only | |
| 12 | * version 2.1 of the License. | |
| 13 | * | |
| 14 | * This library is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 | * Lesser General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU Lesser General Public | |
| 20 | * License along with this library; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 90f5546c MD |
22 | */ |
| 23 | ||
| 24 | #include <linux/perf_event.h> | |
| 25 | ||
| bed5dbd4 DE |
26 | #ifdef CONFIG_PERF_EVENTS |
| 27 | ||
| 28 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
| 90f5546c MD |
29 | static inline struct perf_event * |
| 30 | wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr, | |
| 31 | int cpu, | |
| 32 | struct task_struct *task, | |
| 33 | perf_overflow_handler_t callback) | |
| 34 | { | |
| 35 | return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL); | |
| 36 | } | |
| bed5dbd4 | 37 | #else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */ |
| 3a523f5b | 38 | |
| 745dd71e | 39 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) |
| 90f5546c MD |
40 | static inline struct perf_event * |
| 41 | wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr, | |
| 42 | int cpu, | |
| 43 | struct task_struct *task, | |
| 44 | perf_overflow_handler_t callback) | |
| 45 | { | |
| 46 | return perf_event_create_kernel_counter(attr, cpu, task, callback); | |
| 47 | } | |
| 745dd71e | 48 | #else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */ |
| 3a523f5b MD |
49 | static inline struct perf_event * |
| 50 | wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr, | |
| 51 | int cpu, | |
| 52 | struct task_struct *task, | |
| 53 | perf_overflow_handler_t callback) | |
| 54 | { | |
| 55 | pid_t pid; | |
| 56 | ||
| 57 | if (!task) | |
| 58 | pid = -1; | |
| 59 | else | |
| 60 | pid = task->pid; | |
| 61 | ||
| 62 | return perf_event_create_kernel_counter(attr, cpu, pid, callback); | |
| 63 | } | |
| 64 | ||
| 745dd71e AG |
65 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */ |
| 66 | ||
| 67 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)) | |
| 3a523f5b | 68 | #define local64_read(l) atomic64_read(l) |
| 745dd71e | 69 | #endif |
| 3a523f5b | 70 | |
| bed5dbd4 DE |
71 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */ |
| 72 | ||
| 73 | #endif /* CONFIG_PERF_EVENTS */ | |
| 90f5546c | 74 | |
| a90917c3 | 75 | #endif /* _LTTNG_WRAPPER_PERF_H */ |