projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| 9f3fdbc6 MD |
1 | #ifndef _LTTNG_UST_ABI_H |
| 2 | #define _LTTNG_UST_ABI_H | |
| 3 | ||
| 4 | /* | |
| 5 | * lttng-ust-abi.h | |
| 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 | #define LTTNG_UST_SYM_NAME_LEN 128 | |
| 15 | ||
| 16 | enum lttng_ust_instrumentation { | |
| 17 | LTTNG_UST_TRACEPOINT = 0, | |
| 18 | }; | |
| 19 | ||
| 20 | /* | |
| 21 | * LTTng consumer mode | |
| 22 | */ | |
| 23 | enum lttng_ust_output { | |
| 24 | LTTNG_UST_MMAP = 0, | |
| 25 | }; | |
| 26 | ||
| 27 | /* | |
| 28 | * LTTng DebugFS ABI structures. | |
| 29 | */ | |
| 30 | ||
| 31 | struct lttng_ust_channel { | |
| 32 | int overwrite; /* 1: overwrite, 0: discard */ | |
| 33 | uint64_t subbuf_size; /* in bytes */ | |
| 34 | uint64_t num_subbuf; | |
| 35 | unsigned int switch_timer_interval; /* usecs */ | |
| 36 | unsigned int read_timer_interval; /* usecs */ | |
| 37 | enum lttng_ust_output output; /* mmap */ | |
| 38 | }; | |
| 39 | ||
| 40 | struct lttng_ust_event { | |
| 41 | char name[LTTNG_UST_SYM_NAME_LEN]; /* event name */ | |
| 42 | enum lttng_ust_instrumentation instrumentation; | |
| 43 | /* Per instrumentation type configuration */ | |
| 44 | union { | |
| 45 | } u; | |
| 46 | }; | |
| 47 | ||
| 48 | struct lttng_ust_tracer_version { | |
| 49 | uint32_t version; | |
| 50 | uint32_t patchlevel; | |
| 51 | uint32_t sublevel; | |
| 52 | }; | |
| 53 | ||
| 54 | enum lttng_ust_context_type { | |
| 55 | LTTNG_UST_CONTEXT_VTID = 0, | |
| 56 | }; | |
| 57 | ||
| 58 | struct lttng_ust_context { | |
| 59 | enum lttng_ust_context_type ctx; | |
| 60 | union { | |
| 61 | } u; | |
| 62 | }; | |
| 63 | ||
| 64 | #define _UST_CMD(minor) (minor) | |
| 65 | #define _UST_CMDR(minor, type) (minor) | |
| 66 | #define _UST_CMDW(minor, type) (minor) | |
| 67 | ||
| 68 | /* LTTng-UST commands */ | |
| 69 | #define LTTNG_UST_SESSION _UST_CMD(0x40) | |
| 70 | #define LTTNG_UST_TRACER_VERSION \ | |
| 71 | _UST_CMDR(0x41, struct lttng_ust_tracer_version) | |
| 72 | #define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42) | |
| 73 | #define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43) | |
| 74 | ||
| 75 | /* Session FD ioctl */ | |
| 76 | #define LTTNG_UST_METADATA \ | |
| 77 | _UST_CMDW(0x50, struct lttng_ust_channel) | |
| 78 | #define LTTNG_UST_CHANNEL \ | |
| 79 | _UST_CMDW(0x51, struct lttng_ust_channel) | |
| 80 | #define LTTNG_UST_SESSION_START _UST_CMD(0x52) | |
| 81 | #define LTTNG_UST_SESSION_STOP _UST_CMD(0x53) | |
| 82 | ||
| 83 | /* Channel FD ioctl */ | |
| 84 | #define LTTNG_UST_STREAM _UST_CMD(0x60) | |
| 85 | #define LTTNG_UST_EVENT \ | |
| 86 | _UST_CMDW(0x61, struct lttng_ust_event) | |
| 87 | ||
| 88 | /* Event and Channel FD ioctl */ | |
| 89 | #define LTTNG_UST_CONTEXT \ | |
| 90 | _UST_CMDW(0x70, struct lttng_ust_context) | |
| 91 | ||
| 92 | /* Event, Channel and Session ioctl */ | |
| 93 | #define LTTNG_UST_ENABLE _UST_CMD(0x80) | |
| 94 | #define LTTNG_UST_DISABLE _UST_CMD(0x81) | |
| 95 | ||
| 96 | #endif /* _LTTNG_UST_ABI_H */ |