Revert "Update loglevel ABI"
[lttng-tools.git] / src / bin / lttng-sessiond / lttng-ust-abi.h
CommitLineData
3bd1e081
MD
1#ifndef _LTTNG_UST_ABI_H
2#define _LTTNG_UST_ABI_H
3
4/*
9df8df5e 5 * lttng/ust-abi.h
3bd1e081
MD
6 *
7 * Copyright 2010-2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 *
9 * LTTng-UST ABI header
10 *
11 * Dual LGPL v2.1/GPL v2 license.
12 */
13
14#include <stdint.h>
15
57ab7638 16#define LTTNG_UST_SYM_NAME_LEN 256
3bd1e081
MD
17
18#define LTTNG_UST_COMM_VERSION_MAJOR 0
19#define LTTNG_UST_COMM_VERSION_MINOR 1
20
21enum lttng_ust_instrumentation {
177f8533
MD
22 LTTNG_UST_TRACEPOINT = 0,
23 LTTNG_UST_PROBE = 1,
24 LTTNG_UST_FUNCTION = 2,
69892bbb 25 LTTNG_UST_TRACEPOINT_LOGLEVEL = 3,
3bd1e081
MD
26};
27
28enum lttng_ust_output {
29 LTTNG_UST_MMAP = 0,
30};
31
32struct lttng_ust_tracer_version {
33 uint32_t version;
34 uint32_t patchlevel;
35 uint32_t sublevel;
36};
37
38struct lttng_ust_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 enum lttng_ust_output output; /* output mode */
3bd1e081
MD
45};
46
47struct lttng_ust_event {
dad47fc4 48 char name[LTTNG_UST_SYM_NAME_LEN]; /* event name */
69892bbb 49 enum lttng_ust_instrumentation instrumentation;
3bd1e081
MD
50 /* Per instrumentation type configuration */
51 union {
52 } u;
53};
54
55enum lttng_ust_context_type {
56 LTTNG_UST_CONTEXT_VTID = 0,
57 LTTNG_UST_CONTEXT_VPID = 1,
58 LTTNG_UST_CONTEXT_PTHREAD_ID = 2,
59 LTTNG_UST_CONTEXT_PROCNAME = 3,
60};
61
62struct lttng_ust_context {
63 enum lttng_ust_context_type ctx;
64 union {
65 } u;
66};
67
13161846
DG
68/*
69 * Tracer channel attributes.
70 */
71struct lttng_ust_channel_attr {
72 int overwrite; /* 1: overwrite, 0: discard */
73 uint64_t subbuf_size; /* bytes */
74 uint64_t num_subbuf; /* power of 2 */
75 unsigned int switch_timer_interval; /* usec */
76 unsigned int read_timer_interval; /* usec */
77 enum lttng_ust_output output; /* splice, mmap */
78};
79
177f8533
MD
80struct lttng_ust_tracepoint_iter {
81 char name[LTTNG_UST_SYM_NAME_LEN]; /* provider:name */
82 char loglevel[LTTNG_UST_SYM_NAME_LEN]; /* loglevel */
83 int64_t loglevel_value;
84};
85
13161846
DG
86struct lttng_ust_object_data {
87 int handle;
88 int shm_fd;
89 int wait_fd;
90 uint64_t memory_map_size;
91};
92
f7e1a950
DG
93enum lttng_ust_calibrate_type {
94 LTTNG_UST_CALIBRATE_TRACEPOINT,
95};
96
97struct lttng_ust_calibrate {
98 enum lttng_ust_calibrate_type type; /* type (input) */
99};
100
3bd1e081
MD
101#define _UST_CMD(minor) (minor)
102#define _UST_CMDR(minor, type) (minor)
103#define _UST_CMDW(minor, type) (minor)
104
105/* Handled by object descriptor */
106#define LTTNG_UST_RELEASE _UST_CMD(0x1)
107
108/* Handled by object cmd */
109
110/* LTTng-UST commands */
111#define LTTNG_UST_SESSION _UST_CMD(0x40)
112#define LTTNG_UST_TRACER_VERSION \
113 _UST_CMDR(0x41, struct lttng_ust_tracer_version)
114#define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42)
115#define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43)
116#define LTTNG_UST_REGISTER_DONE _UST_CMD(0x44)
117
118/* Session FD commands */
119#define LTTNG_UST_METADATA \
120 _UST_CMDW(0x50, struct lttng_ust_channel)
121#define LTTNG_UST_CHANNEL \
122 _UST_CMDW(0x51, struct lttng_ust_channel)
123#define LTTNG_UST_SESSION_START _UST_CMD(0x52)
124#define LTTNG_UST_SESSION_STOP _UST_CMD(0x53)
125
126/* Channel FD commands */
127#define LTTNG_UST_STREAM _UST_CMD(0x60)
128#define LTTNG_UST_EVENT \
129 _UST_CMDW(0x61, struct lttng_ust_event)
130
131/* Event and Channel FD commands */
132#define LTTNG_UST_CONTEXT \
133 _UST_CMDW(0x70, struct lttng_ust_context)
2bdd86d4
MD
134#define LTTNG_UST_FLUSH_BUFFER \
135 _UST_CMD(0x71)
3bd1e081
MD
136
137/* Event, Channel and Session commands */
138#define LTTNG_UST_ENABLE _UST_CMD(0x80)
139#define LTTNG_UST_DISABLE _UST_CMD(0x81)
140
8ec2d32a
MD
141/* Tracepoint list commands */
142#define LTTNG_UST_TRACEPOINT_LIST_GET _UST_CMD(0x90)
143
3bd1e081
MD
144#define LTTNG_UST_ROOT_HANDLE 0
145
9df8df5e 146struct lttng_ust_obj;
3bd1e081 147
18cef803
MD
148union ust_args {
149 struct {
150 int *shm_fd;
151 int *wait_fd;
152 uint64_t *memory_map_size;
153 } channel;
154 struct {
155 int *shm_fd;
156 int *wait_fd;
157 uint64_t *memory_map_size;
158 } stream;
159};
160
9df8df5e 161struct lttng_ust_objd_ops {
18cef803
MD
162 long (*cmd)(int objd, unsigned int cmd, unsigned long arg,
163 union ust_args *args);
3bd1e081
MD
164 int (*release)(int objd);
165};
166
167/* Create root handle. Always ID 0. */
168int lttng_abi_create_root_handle(void);
169
9df8df5e
DG
170const struct lttng_ust_objd_ops *objd_ops(int id);
171int lttng_ust_objd_unref(int id);
3bd1e081
MD
172
173void lttng_ust_abi_exit(void);
9df8df5e 174void lttng_ust_events_exit(void);
3bd1e081
MD
175
176#endif /* _LTTNG_UST_ABI_H */
This page took 0.04574 seconds and 4 git commands to generate.