projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f36eaed MJ |
1 | /* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) |
| 2 | * | |
| 886d51a3 | 3 | * wrapper/perf.h |
| 90f5546c | 4 | * |
| 886d51a3 | 5 | * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 90f5546c MD |
6 | */ |
| 7 | ||
| 9f36eaed MJ |
8 | #ifndef _LTTNG_WRAPPER_PERF_H |
| 9 | #define _LTTNG_WRAPPER_PERF_H | |
| 10 | ||
| 90f5546c MD |
11 | #include <linux/perf_event.h> |
| 12 | ||
| bed5dbd4 DE |
13 | #ifdef CONFIG_PERF_EVENTS |
| 14 | ||
| 15 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) | |
| 90f5546c MD |
16 | static inline struct perf_event * |
| 17 | wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr, | |
| 18 | int cpu, | |
| 19 | struct task_struct *task, | |
| 20 | perf_overflow_handler_t callback) | |
| 21 | { | |
| 22 | return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL); | |
| 23 | } | |
| bed5dbd4 | 24 | #else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */ |
| 3a523f5b | 25 | |
| 745dd71e | 26 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) |
| 90f5546c MD |
27 | static inline struct perf_event * |
| 28 | wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr, | |
| 29 | int cpu, | |
| 30 | struct task_struct *task, | |
| 31 | perf_overflow_handler_t callback) | |
| 32 | { | |
| 33 | return perf_event_create_kernel_counter(attr, cpu, task, callback); | |
| 34 | } | |
| 745dd71e | 35 | #else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */ |
| 3a523f5b MD |
36 | static inline struct perf_event * |
| 37 | wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr, | |
| 38 | int cpu, | |
| 39 | struct task_struct *task, | |
| 40 | perf_overflow_handler_t callback) | |
| 41 | { | |
| 42 | pid_t pid; | |
| 43 | ||
| 44 | if (!task) | |
| 45 | pid = -1; | |
| 46 | else | |
| 47 | pid = task->pid; | |
| 48 | ||
| 49 | return perf_event_create_kernel_counter(attr, cpu, pid, callback); | |
| 50 | } | |
| 51 | ||
| 745dd71e AG |
52 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */ |
| 53 | ||
| 54 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)) | |
| 3a523f5b | 55 | #define local64_read(l) atomic64_read(l) |
| 745dd71e | 56 | #endif |
| 3a523f5b | 57 | |
| bed5dbd4 DE |
58 | #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) */ |
| 59 | ||
| 60 | #endif /* CONFIG_PERF_EVENTS */ | |
| 90f5546c | 61 | |
| a90917c3 | 62 | #endif /* _LTTNG_WRAPPER_PERF_H */ |