5 * Taken from the lttng-ust-abi.h in the UST 2.0 git tree
7 * Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * Copyright 2011 - David Goulet <david.goulet@polymtl.ca>
10 * LTTng-UST ABI header
12 * Dual LGPL v2.1/GPL v2 license.
17 #define LTTNG_UST_SYM_NAME_LEN 128
19 #define LTTNG_UST_COMM_VERSION_MAJOR 0
20 #define LTTNG_UST_COMM_VERSION_MINOR 1
22 enum lttng_ust_instrumentation
{
23 LTTNG_UST_TRACEPOINT
= 0,
25 LTTNG_UST_FUNCTION
= 2,
28 enum lttng_ust_output
{
32 struct lttng_ust_tracer_version
{
38 struct lttng_ust_channel
{
39 int overwrite
; /* 1: overwrite, 0: discard */
40 uint64_t subbuf_size
; /* in bytes */
42 unsigned int switch_timer_interval
; /* usecs */
43 unsigned int read_timer_interval
; /* usecs */
44 enum lttng_ust_output output
; /* output mode */
45 /* The following fields are used internally within UST. */
48 uint64_t memory_map_size
;
51 struct lttng_ust_event
{
52 char name
[LTTNG_UST_SYM_NAME_LEN
]; /* event name */
53 enum lttng_ust_instrumentation instrumentation
;
54 /* Per instrumentation type configuration */
59 enum lttng_ust_context_type
{
60 LTTNG_UST_CONTEXT_VTID
= 0,
63 struct lttng_ust_context
{
64 enum lttng_ust_context_type ctx
;
69 #define _UST_CMD(minor) (minor)
70 #define _UST_CMDR(minor, type) (minor)
71 #define _UST_CMDW(minor, type) (minor)
73 /* Handled by object descriptor */
74 #define LTTNG_UST_RELEASE _UST_CMD(0x1)
76 /* Handled by object cmd */
78 /* LTTng-UST commands */
79 #define LTTNG_UST_SESSION _UST_CMD(0x40)
80 #define LTTNG_UST_TRACER_VERSION \
81 _UST_CMDR(0x41, struct lttng_ust_tracer_version)
82 #define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42)
83 #define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43)
84 #define LTTNG_UST_REGISTER_DONE _UST_CMD(0x44)
86 /* Session FD ioctl */
87 #define LTTNG_UST_METADATA \
88 _UST_CMDW(0x50, struct lttng_ust_channel)
89 #define LTTNG_UST_CHANNEL \
90 _UST_CMDW(0x51, struct lttng_ust_channel)
91 #define LTTNG_UST_SESSION_START _UST_CMD(0x52)
92 #define LTTNG_UST_SESSION_STOP _UST_CMD(0x53)
94 /* Channel FD ioctl */
95 #define LTTNG_UST_STREAM _UST_CMD(0x60)
96 #define LTTNG_UST_EVENT \
97 _UST_CMDW(0x61, struct lttng_ust_event)
99 /* Event and Channel FD ioctl */
100 #define LTTNG_UST_CONTEXT \
101 _UST_CMDW(0x70, struct lttng_ust_context)
103 /* Event, Channel and Session ioctl */
104 #define LTTNG_UST_ENABLE _UST_CMD(0x80)
105 #define LTTNG_UST_DISABLE _UST_CMD(0x81)
107 #define LTTNG_UST_ROOT_HANDLE 0
109 #endif /* _LTTNG_UST_H */