| 1 | /* |
| 2 | * LTT core in-kernel infrastructure. |
| 3 | * |
| 4 | * Copyright 2006 - Mathieu Desnoyers mathieu.desnoyers@polymtl.ca |
| 5 | * |
| 6 | * Dual LGPL v2.1/GPL v2 license. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/percpu.h> |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/debugfs.h> |
| 12 | #include <linux/kref.h> |
| 13 | #include <linux/cpu.h> |
| 14 | |
| 15 | #include "ltt-tracer-core.h" |
| 16 | |
| 17 | int ltt_run_filter_default(struct ltt_session *session, |
| 18 | struct ltt_channel *chan, |
| 19 | struct ltt_event *event) |
| 20 | { |
| 21 | return 1; |
| 22 | } |
| 23 | |
| 24 | /* This function pointer is protected by a trace activation check */ |
| 25 | ltt_run_filter_functor ltt_run_filter = ltt_run_filter_default; |
| 26 | EXPORT_SYMBOL_GPL(ltt_run_filter); |
| 27 | |
| 28 | void ltt_filter_register(ltt_run_filter_functor func) |
| 29 | { |
| 30 | ltt_run_filter = func; |
| 31 | } |
| 32 | EXPORT_SYMBOL_GPL(ltt_filter_register); |
| 33 | |
| 34 | void ltt_filter_unregister(void) |
| 35 | { |
| 36 | ltt_run_filter = ltt_run_filter_default; |
| 37 | } |
| 38 | EXPORT_SYMBOL_GPL(ltt_filter_unregister); |
| 39 | |
| 40 | MODULE_LICENSE("GPL and additional rights"); |
| 41 | MODULE_AUTHOR("Mathieu Desnoyers"); |
| 42 | MODULE_DESCRIPTION("Linux Trace Toolkit Next Generation Tracer Core"); |