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3817e7df DG |
1 | #ifndef _LTTNG_UST_H |
2 | #define _LTTNG_UST_H | |
3 | ||
4 | /* | |
5 | * Taken from the lttng-ust-abi.h in the UST 2.0 git tree | |
6 | * | |
97ee3a89 DG |
7 | * Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
8 | * Copyright 2011 - David Goulet <david.goulet@polymtl.ca> | |
3817e7df DG |
9 | * |
10 | * LTTng-UST ABI header | |
11 | * | |
12 | * Dual LGPL v2.1/GPL v2 license. | |
13 | */ | |
14 | ||
15 | #include <stdint.h> | |
16 | ||
97ee3a89 | 17 | #define LTTNG_UST_SYM_NAME_LEN 128 |
3817e7df | 18 | |
97ee3a89 DG |
19 | #define LTTNG_UST_COMM_VERSION_MAJOR 0 |
20 | #define LTTNG_UST_COMM_VERSION_MINOR 1 | |
21 | ||
22 | /* See lttng-ust.h enum lttng_ust_output */ | |
23 | #define DEFAULT_UST_CHANNEL_OUTPUT LTTNG_UST_MMAP | |
3817e7df DG |
24 | |
25 | enum lttng_ust_instrumentation { | |
26 | LTTNG_UST_TRACEPOINT = 0, | |
27 | LTTNG_UST_PROBE = 1, | |
28 | LTTNG_UST_FUNCTION = 2, | |
29 | }; | |
30 | ||
31 | enum lttng_ust_output { | |
32 | LTTNG_UST_MMAP = 0, | |
33 | }; | |
34 | ||
35 | struct lttng_ust_tracer_version { | |
36 | uint32_t version; | |
37 | uint32_t patchlevel; | |
38 | uint32_t sublevel; | |
39 | }; | |
40 | ||
41 | struct lttng_ust_channel { | |
42 | int overwrite; /* 1: overwrite, 0: discard */ | |
43 | uint64_t subbuf_size; /* in bytes */ | |
44 | uint64_t num_subbuf; | |
45 | unsigned int switch_timer_interval; /* usecs */ | |
46 | unsigned int read_timer_interval; /* usecs */ | |
47 | enum lttng_ust_output output; /* output mode */ | |
2b0bf864 DG |
48 | /* The following fields are used internally within UST. */ |
49 | int shm_fd; | |
50 | int wait_fd; | |
51 | uint64_t memory_map_size; | |
3817e7df DG |
52 | }; |
53 | ||
54 | struct lttng_ust_event { | |
55 | char name[LTTNG_UST_SYM_NAME_LEN]; /* event name */ | |
56 | enum lttng_ust_instrumentation instrumentation; | |
57 | /* Per instrumentation type configuration */ | |
58 | union { | |
59 | } u; | |
60 | }; | |
61 | ||
62 | enum lttng_ust_context_type { | |
63 | LTTNG_UST_CONTEXT_VTID = 0, | |
64 | }; | |
65 | ||
66 | struct lttng_ust_context { | |
67 | enum lttng_ust_context_type ctx; | |
68 | union { | |
69 | } u; | |
70 | }; | |
71 | ||
72 | #define _UST_CMD(minor) (minor) | |
73 | #define _UST_CMDR(minor, type) (minor) | |
74 | #define _UST_CMDW(minor, type) (minor) | |
75 | ||
76 | /* Handled by object descriptor */ | |
77 | #define LTTNG_UST_RELEASE _UST_CMD(0x1) | |
78 | ||
79 | /* Handled by object cmd */ | |
80 | ||
81 | /* LTTng-UST commands */ | |
82 | #define LTTNG_UST_SESSION _UST_CMD(0x40) | |
83 | #define LTTNG_UST_TRACER_VERSION \ | |
84 | _UST_CMDR(0x41, struct lttng_ust_tracer_version) | |
85 | #define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42) | |
86 | #define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43) | |
099e26bd | 87 | #define LTTNG_UST_REGISTER_DONE _UST_CMD(0x44) |
3817e7df DG |
88 | |
89 | /* Session FD ioctl */ | |
90 | #define LTTNG_UST_METADATA \ | |
91 | _UST_CMDW(0x50, struct lttng_ust_channel) | |
92 | #define LTTNG_UST_CHANNEL \ | |
93 | _UST_CMDW(0x51, struct lttng_ust_channel) | |
94 | #define LTTNG_UST_SESSION_START _UST_CMD(0x52) | |
95 | #define LTTNG_UST_SESSION_STOP _UST_CMD(0x53) | |
96 | ||
97 | /* Channel FD ioctl */ | |
98 | #define LTTNG_UST_STREAM _UST_CMD(0x60) | |
99 | #define LTTNG_UST_EVENT \ | |
100 | _UST_CMDW(0x61, struct lttng_ust_event) | |
101 | ||
102 | /* Event and Channel FD ioctl */ | |
103 | #define LTTNG_UST_CONTEXT \ | |
104 | _UST_CMDW(0x70, struct lttng_ust_context) | |
105 | ||
106 | /* Event, Channel and Session ioctl */ | |
107 | #define LTTNG_UST_ENABLE _UST_CMD(0x80) | |
108 | #define LTTNG_UST_DISABLE _UST_CMD(0x81) | |
109 | ||
099e26bd DG |
110 | #define LTTNG_UST_ROOT_HANDLE 0 |
111 | ||
3817e7df | 112 | #endif /* _LTTNG_UST_H */ |