projects / lttng-tools.git / blame
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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 */ |