| | 1 | /* |
| | 2 | * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca> |
| | 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| | 4 | * |
| | 5 | * SPDX-License-Identifier: GPL-2.0-only |
| | 6 | * |
| | 7 | */ |
| | 8 | |
| | 9 | #ifndef _LTT_KERNEL_IOCTL_H |
| | 10 | #define _LTT_KERNEL_IOCTL_H |
| | 11 | |
| | 12 | #define LTTNG_MODULES_ABI_MAJOR_VERSION 2 |
| | 13 | #define LTTNG_MODULES_ABI_MINOR_VERSION 5 |
| | 14 | |
| | 15 | /* Get a snapshot of the current ring buffer producer and consumer positions */ |
| | 16 | #define RING_BUFFER_SNAPSHOT _IO(0xF6, 0x00) |
| | 17 | /* Get the consumer position (iteration start) */ |
| | 18 | #define RING_BUFFER_SNAPSHOT_GET_CONSUMED _IOR(0xF6, 0x01, unsigned long) |
| | 19 | /* Get the producer position (iteration end) */ |
| | 20 | #define RING_BUFFER_SNAPSHOT_GET_PRODUCED _IOR(0xF6, 0x02, unsigned long) |
| | 21 | /* Get exclusive read access to the specified sub-buffer position */ |
| | 22 | #define RING_BUFFER_GET_SUBBUF _IOW(0xF6, 0x03, unsigned long) |
| | 23 | /* Release exclusive sub-buffer access */ |
| | 24 | #define RING_BUFFER_PUT_SUBBUF _IO(0xF6, 0x04) |
| | 25 | |
| | 26 | /* Get exclusive read access to the next sub-buffer that can be read. */ |
| | 27 | #define RING_BUFFER_GET_NEXT_SUBBUF _IO(0xF6, 0x05) |
| | 28 | /* Release exclusive sub-buffer access, move consumer forward. */ |
| | 29 | #define RING_BUFFER_PUT_NEXT_SUBBUF _IO(0xF6, 0x06) |
| | 30 | /* returns the size of the current sub-buffer, without padding (for mmap). */ |
| | 31 | #define RING_BUFFER_GET_SUBBUF_SIZE _IOR(0xF6, 0x07, unsigned long) |
| | 32 | /* returns the size of the current sub-buffer, with padding (for splice). */ |
| | 33 | #define RING_BUFFER_GET_PADDED_SUBBUF_SIZE _IOR(0xF6, 0x08, unsigned long) |
| | 34 | /* returns the maximum size for sub-buffers. */ |
| | 35 | #define RING_BUFFER_GET_MAX_SUBBUF_SIZE _IOR(0xF6, 0x09, unsigned long) |
| | 36 | /* returns the length to mmap. */ |
| | 37 | #define RING_BUFFER_GET_MMAP_LEN _IOR(0xF6, 0x0A, unsigned long) |
| | 38 | /* returns the offset of the subbuffer belonging to the mmap reader. */ |
| | 39 | #define RING_BUFFER_GET_MMAP_READ_OFFSET _IOR(0xF6, 0x0B, unsigned long) |
| | 40 | /* Flush the current sub-buffer, if non-empty. */ |
| | 41 | #define RING_BUFFER_FLUSH _IO(0xF6, 0x0C) |
| | 42 | /* Get the current version of the metadata cache (after a get_next). */ |
| | 43 | #define RING_BUFFER_GET_METADATA_VERSION _IOR(0xF6, 0x0D, uint64_t) |
| | 44 | /* |
| | 45 | * Get a snapshot of the current ring buffer producer and consumer positions, |
| | 46 | * regardless of whether or not the two positions are contained within the same |
| | 47 | * sub-buffer. |
| | 48 | */ |
| | 49 | #define RING_BUFFER_SNAPSHOT_SAMPLE_POSITIONS _IO(0xF6, 0x0E) |
| | 50 | /* Flush the current sub-buffer, even if empty. */ |
| | 51 | #define RING_BUFFER_FLUSH_EMPTY _IO(0xF6, 0x0F) |
| | 52 | /* |
| | 53 | * Reset the position of what has been consumed from the metadata cache to 0 |
| | 54 | * so it can be read again. |
| | 55 | */ |
| | 56 | #define RING_BUFFER_METADATA_CACHE_DUMP _IO(0xF6, 0x10) |
| | 57 | /* Clear ring buffer content */ |
| | 58 | #define RING_BUFFER_CLEAR _IO(0xF6, 0x11) |
| | 59 | #define RING_RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK _IOR(0xF6, 0x12, uint32_t) |
| | 60 | |
| | 61 | /* returns the timestamp begin of the current sub-buffer */ |
| | 62 | #define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t) |
| | 63 | /* returns the timestamp end of the current sub-buffer */ |
| | 64 | #define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t) |
| | 65 | /* returns the number of events discarded */ |
| | 66 | #define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t) |
| | 67 | /* returns the packet payload size */ |
| | 68 | #define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t) |
| | 69 | /* returns the actual packet size */ |
| | 70 | #define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t) |
| | 71 | /* returns the stream id */ |
| | 72 | #define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t) |
| | 73 | /* returns the current timestamp */ |
| | 74 | #define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t) |
| | 75 | /* returns the packet sequence number */ |
| | 76 | #define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t) |
| | 77 | /* returns the stream instance id */ |
| | 78 | #define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t) |
| | 79 | |
| | 80 | /* Old ABI (without support for 32/64 bits compat) */ |
| | 81 | /* LTTng file descriptor ioctl */ |
| | 82 | #define LTTNG_KERNEL_OLD_SESSION _IO(0xF6, 0x40) |
| | 83 | #define LTTNG_KERNEL_OLD_TRACER_VERSION \ |
| | 84 | _IOR(0xF6, 0x41, struct lttng_kernel_old_tracer_version) |
| | 85 | #define LTTNG_KERNEL_OLD_TRACEPOINT_LIST _IO(0xF6, 0x42) |
| | 86 | #define LTTNG_KERNEL_OLD_WAIT_QUIESCENT _IO(0xF6, 0x43) |
| | 87 | |
| | 88 | /* Session FD ioctl */ |
| | 89 | #define LTTNG_KERNEL_OLD_METADATA \ |
| | 90 | _IOW(0xF6, 0x50, struct lttng_kernel_old_channel) |
| | 91 | #define LTTNG_KERNEL_OLD_CHANNEL \ |
| | 92 | _IOW(0xF6, 0x51, struct lttng_kernel_old_channel) |
| | 93 | #define LTTNG_KERNEL_OLD_SESSION_START _IO(0xF6, 0x52) |
| | 94 | #define LTTNG_KERNEL_OLD_SESSION_STOP _IO(0xF6, 0x53) |
| | 95 | |
| | 96 | /* Channel FD ioctl */ |
| | 97 | #define LTTNG_KERNEL_OLD_STREAM _IO(0xF6, 0x60) |
| | 98 | #define LTTNG_KERNEL_OLD_EVENT \ |
| | 99 | _IOW(0xF6, 0x61, struct lttng_kernel_old_event) |
| | 100 | |
| | 101 | /* Event and Channel FD ioctl */ |
| | 102 | #define LTTNG_KERNEL_OLD_CONTEXT \ |
| | 103 | _IOW(0xF6, 0x70, struct lttng_kernel_old_context) |
| | 104 | |
| | 105 | /* Event, Channel and Session ioctl */ |
| | 106 | #define LTTNG_KERNEL_OLD_ENABLE _IO(0xF6, 0x80) |
| | 107 | #define LTTNG_KERNEL_OLD_DISABLE _IO(0xF6, 0x81) |
| | 108 | |
| | 109 | |
| | 110 | /* Current ABI (with suport for 32/64 bits compat) */ |
| | 111 | /* LTTng file descriptor ioctl */ |
| | 112 | #define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45) |
| | 113 | #define LTTNG_KERNEL_TRACER_VERSION \ |
| | 114 | _IOR(0xF6, 0x46, struct lttng_kernel_tracer_version) |
| | 115 | #define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47) |
| | 116 | #define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48) |
| | 117 | #define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A) |
| | 118 | #define LTTNG_KERNEL_TRACER_ABI_VERSION \ |
| | 119 | _IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version) |
| | 120 | #define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE \ |
| | 121 | _IO(0xF6, 0x4C) |
| | 122 | |
| | 123 | /* Session FD ioctl */ |
| | 124 | #define LTTNG_KERNEL_METADATA \ |
| | 125 | _IOW(0xF6, 0x54, struct lttng_kernel_channel) |
| | 126 | #define LTTNG_KERNEL_CHANNEL \ |
| | 127 | _IOW(0xF6, 0x55, struct lttng_kernel_channel) |
| | 128 | #define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56) |
| | 129 | #define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57) |
| | 130 | #define LTTNG_KERNEL_SESSION_TRACK_PID \ |
| | 131 | _IOR(0xF6, 0x58, int32_t) |
| | 132 | #define LTTNG_KERNEL_SESSION_UNTRACK_PID \ |
| | 133 | _IOR(0xF6, 0x59, int32_t) |
| | 134 | /* |
| | 135 | * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO |
| | 136 | * are generating two different ioctl numbers, but this was not done on |
| | 137 | * purpose. We should generally try to avoid those duplications. |
| | 138 | */ |
| | 139 | #define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58) |
| | 140 | #define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59) |
| | 141 | /* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */ |
| | 142 | #define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C) |
| | 143 | #define LTTNG_KERNEL_SESSION_SET_NAME \ |
| | 144 | _IOR(0xF6, 0x5D, struct lttng_kernel_session_name) |
| | 145 | #define LTTNG_KERNEL_SESSION_SET_CREATION_TIME \ |
| | 146 | _IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time) |
| | 147 | |
| | 148 | /* Channel FD ioctl */ |
| | 149 | #define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62) |
| | 150 | #define LTTNG_KERNEL_EVENT \ |
| | 151 | _IOW(0xF6, 0x63, struct lttng_kernel_event) |
| | 152 | #define LTTNG_KERNEL_SYSCALL_MASK \ |
| | 153 | _IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask) |
| | 154 | |
| | 155 | /* Event and Channel FD ioctl */ |
| | 156 | #define LTTNG_KERNEL_CONTEXT \ |
| | 157 | _IOW(0xF6, 0x71, struct lttng_kernel_context) |
| | 158 | |
| | 159 | /* Event, event notifier, Channel and Session ioctl */ |
| | 160 | #define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82) |
| | 161 | #define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83) |
| | 162 | |
| | 163 | /* Event and event notifier FD ioctl */ |
| | 164 | #define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90) |
| | 165 | #define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91) |
| | 166 | |
| | 167 | /* Session FD ioctl (continued) */ |
| | 168 | #define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS \ |
| | 169 | _IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args) |
| | 170 | #define LTTNG_KERNEL_SESSION_TRACK_ID \ |
| | 171 | _IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args) |
| | 172 | #define LTTNG_KERNEL_SESSION_UNTRACK_ID \ |
| | 173 | _IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args) |
| | 174 | |
| | 175 | /* Event notifier group file descriptor ioctl */ |
| | 176 | #define LTTNG_KERNEL_EVENT_NOTIFIER_CREATE \ |
| | 177 | _IOW(0xF6, 0xB0, struct lttng_kernel_event_notifier) |
| | 178 | #define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \ |
| | 179 | _IO(0xF6, 0xB1) |
| | 180 | |
| | 181 | #endif /* _LTT_KERNEL_IOCTL_H */ |
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