| 1 | #ifndef _LTTNG_TRACER_H |
| 2 | #define _LTTNG_TRACER_H |
| 3 | |
| 4 | /* |
| 5 | * lttng-tracer.h |
| 6 | * |
| 7 | * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 8 | * |
| 9 | * This contains the definitions for the Linux Trace Toolkit tracer. |
| 10 | * |
| 11 | * Dual LGPL v2.1/GPL v2 license. |
| 12 | */ |
| 13 | |
| 14 | #include <stdarg.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/limits.h> |
| 17 | #include <linux/list.h> |
| 18 | #include <linux/cache.h> |
| 19 | #include <linux/timex.h> |
| 20 | #include <linux/wait.h> |
| 21 | #include <asm/atomic.h> |
| 22 | #include <asm/local.h> |
| 23 | |
| 24 | #include "wrapper/trace-clock.h" |
| 25 | #include "lttng-tracer-core.h" |
| 26 | #include "lttng-events.h" |
| 27 | |
| 28 | #define LTTNG_VERSION 0 |
| 29 | #define LTTNG_PATCHLEVEL 9 |
| 30 | #define LTTNG_SUBLEVEL 1 |
| 31 | |
| 32 | #ifndef CHAR_BIT |
| 33 | #define CHAR_BIT 8 |
| 34 | #endif |
| 35 | |
| 36 | /* Number of bytes to log with a read/write event */ |
| 37 | #define LTTNG_LOG_RW_SIZE 32L |
| 38 | #define LTTNG_MAX_SMALL_SIZE 0xFFFFU |
| 39 | |
| 40 | #ifdef RING_BUFFER_ALIGN |
| 41 | #define lttng_alignof(type) __alignof__(type) |
| 42 | #else |
| 43 | #define lttng_alignof(type) 1 |
| 44 | #endif |
| 45 | |
| 46 | /* Tracer properties */ |
| 47 | #define CTF_MAGIC_NUMBER 0xC1FC1FC1 |
| 48 | #define TSDL_MAGIC_NUMBER 0x75D11D57 |
| 49 | |
| 50 | /* CTF specification version followed */ |
| 51 | #define CTF_SPEC_MAJOR 1 |
| 52 | #define CTF_SPEC_MINOR 8 |
| 53 | |
| 54 | /* Tracer major/minor versions */ |
| 55 | #define CTF_VERSION_MAJOR 0 |
| 56 | #define CTF_VERSION_MINOR 1 |
| 57 | |
| 58 | /* |
| 59 | * Number of milliseconds to retry before failing metadata writes on buffer full |
| 60 | * condition. (10 seconds) |
| 61 | */ |
| 62 | #define LTTNG_METADATA_TIMEOUT_MSEC 10000 |
| 63 | |
| 64 | #define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END |
| 65 | #define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1) |
| 66 | |
| 67 | #endif /* _LTTNG_TRACER_H */ |