projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 93128a92 DG |
1 | /* |
| 2 | * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca> | |
| 3 | * Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 4 | * David Goulet <david.goulet@polymtl.ca> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version 2 | |
| 9 | * of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef _LTTNG_KERNEL_H | |
| 22 | #define _LTTNG_KERNEL_H | |
| 23 | ||
| 9bda164d | 24 | #include "lttng-share.h" |
| 93128a92 | 25 | |
| 9cb98350 JD |
26 | #define LTTNG_SYM_NAME_LEN 128 |
| 27 | ||
| 28 | enum lttng_kernel_instrumentation { | |
| 29 | LTTNG_KERNEL_TRACEPOINTS, | |
| 30 | LTTNG_KERNEL_KPROBES, | |
| 31 | LTTNG_KERNEL_FUNCTION_TRACER, | |
| 32 | }; | |
| 33 | ||
| 93128a92 DG |
34 | /* |
| 35 | * LTTng DebugFS ABI structures. | |
| 36 | */ | |
| 9cb98350 JD |
37 | |
| 38 | struct lttng_kernel_channel { | |
| 39 | int overwrite; /* 1: overwrite, 0: discard */ | |
| 40 | uint64_t subbuf_size; /* in bytes */ | |
| 41 | uint64_t num_subbuf; | |
| 42 | unsigned int switch_timer_interval; /* usecs */ | |
| 43 | unsigned int read_timer_interval; /* usecs */ | |
| 44 | }; | |
| 45 | ||
| 46 | struct lttng_kernel_tracepoint { | |
| 47 | }; | |
| 48 | ||
| 49 | /* | |
| 50 | * Either addr is used, or symbol_name and offset. | |
| 51 | */ | |
| 52 | struct lttng_kernel_kprobe { | |
| 53 | uint64_t addr; | |
| 54 | ||
| 55 | uint64_t offset; | |
| 56 | char symbol_name[LTTNG_SYM_NAME_LEN]; | |
| 57 | }; | |
| 58 | ||
| 59 | struct lttng_kernel_function_tracer { | |
| 60 | char symbol_name[LTTNG_SYM_NAME_LEN]; | |
| 93128a92 DG |
61 | }; |
| 62 | ||
| 9cb98350 JD |
63 | struct lttng_kernel_event { |
| 64 | char name[LTTNG_SYM_NAME_LEN]; /* event name */ | |
| 65 | enum lttng_kernel_instrumentation instrumentation; | |
| 66 | /* Per instrumentation type configuration */ | |
| 67 | union { | |
| 68 | struct lttng_kernel_tracepoint tracepoint; | |
| 69 | struct lttng_kernel_kprobe kprobe; | |
| 70 | struct lttng_kernel_function_tracer ftrace; | |
| 71 | } u; | |
| 93128a92 DG |
72 | }; |
| 73 | ||
| 9cb98350 JD |
74 | struct lttng_kernel_tracer_version { |
| 75 | uint32_t version; | |
| 76 | uint32_t patchlevel; | |
| 77 | uint32_t sublevel; | |
| 93128a92 DG |
78 | }; |
| 79 | ||
| 80 | #endif /* _LTTNG_KERNEL_H */ |