X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fkernel-ctl%2Fkernel-ioctl.h;h=8922f58d00f5fa3dc8a82a49cde0e4dd7c731c15;hp=408535d431a7578702cc4544f38f69dada71ae78;hb=74e89a8c6a6824c4ca8179a3ae7b9cc4c99bddc5;hpb=10a8a2237343699e3923d87e24dbf2d7fe225377 diff --git a/src/common/kernel-ctl/kernel-ioctl.h b/src/common/kernel-ctl/kernel-ioctl.h index 408535d43..8922f58d0 100644 --- a/src/common/kernel-ctl/kernel-ioctl.h +++ b/src/common/kernel-ctl/kernel-ioctl.h @@ -2,24 +2,26 @@ * Copyright (C) 2011 - Julien Desfossez * Mathieu Desnoyers * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; only version 2 - * of the License. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2 only, + * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _LTT_KERNEL_IOCTL_H #define _LTT_KERNEL_IOCTL_H +#define LTTNG_MODULES_ABI_MAJOR_VERSION 2 +#define LTTNG_MODULES_ABI_MINOR_VERSION 5 + /* Get a snapshot of the current ring buffer producer and consumer positions */ #define RING_BUFFER_SNAPSHOT _IO(0xF6, 0x00) /* Get the consumer position (iteration start) */ @@ -45,37 +47,136 @@ #define RING_BUFFER_GET_MMAP_LEN _IOR(0xF6, 0x0A, unsigned long) /* returns the offset of the subbuffer belonging to the mmap reader. */ #define RING_BUFFER_GET_MMAP_READ_OFFSET _IOR(0xF6, 0x0B, unsigned long) -/* flush the current sub-buffer */ +/* Flush the current sub-buffer, if non-empty. */ #define RING_BUFFER_FLUSH _IO(0xF6, 0x0C) +/* Get the current version of the metadata cache (after a get_next). */ +#define RING_BUFFER_GET_METADATA_VERSION _IOR(0xF6, 0x0D, uint64_t) +/* + * Get a snapshot of the current ring buffer producer and consumer positions, + * regardless of whether or not the two positions are contained within the same + * sub-buffer. + */ +#define RING_BUFFER_SNAPSHOT_SAMPLE_POSITIONS _IO(0xF6, 0x0E) +/* Flush the current sub-buffer, even if empty. */ +#define RING_BUFFER_FLUSH_EMPTY _IO(0xF6, 0x0F) +/* + * Reset the position of what has been consumed from the metadata cache to 0 + * so it can be read again. + */ +#define RING_BUFFER_METADATA_CACHE_DUMP _IO(0xF6, 0x10) +/* Clear ring buffer content */ +#define RING_BUFFER_CLEAR _IO(0xF6, 0x11) + +/* returns the timestamp begin of the current sub-buffer */ +#define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN _IOR(0xF6, 0x20, uint64_t) +/* returns the timestamp end of the current sub-buffer */ +#define LTTNG_RING_BUFFER_GET_TIMESTAMP_END _IOR(0xF6, 0x21, uint64_t) +/* returns the number of events discarded */ +#define LTTNG_RING_BUFFER_GET_EVENTS_DISCARDED _IOR(0xF6, 0x22, uint64_t) +/* returns the packet payload size */ +#define LTTNG_RING_BUFFER_GET_CONTENT_SIZE _IOR(0xF6, 0x23, uint64_t) +/* returns the actual packet size */ +#define LTTNG_RING_BUFFER_GET_PACKET_SIZE _IOR(0xF6, 0x24, uint64_t) +/* returns the stream id */ +#define LTTNG_RING_BUFFER_GET_STREAM_ID _IOR(0xF6, 0x25, uint64_t) +/* returns the current timestamp */ +#define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP _IOR(0xF6, 0x26, uint64_t) +/* returns the packet sequence number */ +#define LTTNG_RING_BUFFER_GET_SEQ_NUM _IOR(0xF6, 0x27, uint64_t) +/* returns the stream instance id */ +#define LTTNG_RING_BUFFER_INSTANCE_ID _IOR(0xF6, 0x28, uint64_t) +/* Old ABI (without support for 32/64 bits compat) */ /* LTTng file descriptor ioctl */ -#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x40) -#define LTTNG_KERNEL_TRACER_VERSION \ - _IOR(0xF6, 0x41, struct lttng_kernel_tracer_version) -#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x42) -#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x43) -#define LTTNG_KERNEL_CALIBRATE \ - _IOWR(0xF6, 0x44, struct lttng_kernel_calibrate) +#define LTTNG_KERNEL_OLD_SESSION _IO(0xF6, 0x40) +#define LTTNG_KERNEL_OLD_TRACER_VERSION \ + _IOR(0xF6, 0x41, struct lttng_kernel_old_tracer_version) +#define LTTNG_KERNEL_OLD_TRACEPOINT_LIST _IO(0xF6, 0x42) +#define LTTNG_KERNEL_OLD_WAIT_QUIESCENT _IO(0xF6, 0x43) /* Session FD ioctl */ -#define LTTNG_KERNEL_METADATA \ - _IOW(0xF6, 0x50, struct lttng_channel_attr) -#define LTTNG_KERNEL_CHANNEL \ - _IOW(0xF6, 0x51, struct lttng_channel_attr) -#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x52) -#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x53) +#define LTTNG_KERNEL_OLD_METADATA \ + _IOW(0xF6, 0x50, struct lttng_kernel_old_channel) +#define LTTNG_KERNEL_OLD_CHANNEL \ + _IOW(0xF6, 0x51, struct lttng_kernel_old_channel) +#define LTTNG_KERNEL_OLD_SESSION_START _IO(0xF6, 0x52) +#define LTTNG_KERNEL_OLD_SESSION_STOP _IO(0xF6, 0x53) /* Channel FD ioctl */ -#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x60) -#define LTTNG_KERNEL_EVENT \ - _IOW(0xF6, 0x61, struct lttng_kernel_event) +#define LTTNG_KERNEL_OLD_STREAM _IO(0xF6, 0x60) +#define LTTNG_KERNEL_OLD_EVENT \ + _IOW(0xF6, 0x61, struct lttng_kernel_old_event) /* Event and Channel FD ioctl */ -#define LTTNG_KERNEL_CONTEXT \ - _IOW(0xF6, 0x70, struct lttng_kernel_context) +#define LTTNG_KERNEL_OLD_CONTEXT \ + _IOW(0xF6, 0x70, struct lttng_kernel_old_context) /* Event, Channel and Session ioctl */ -#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x80) -#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x81) +#define LTTNG_KERNEL_OLD_ENABLE _IO(0xF6, 0x80) +#define LTTNG_KERNEL_OLD_DISABLE _IO(0xF6, 0x81) + + +/* Current ABI (with suport for 32/64 bits compat) */ +/* LTTng file descriptor ioctl */ +#define LTTNG_KERNEL_SESSION _IO(0xF6, 0x45) +#define LTTNG_KERNEL_TRACER_VERSION \ + _IOR(0xF6, 0x46, struct lttng_kernel_tracer_version) +#define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x47) +#define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x48) +#define LTTNG_KERNEL_SYSCALL_LIST _IO(0xF6, 0x4A) +#define LTTNG_KERNEL_TRACER_ABI_VERSION \ + _IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version) + +/* Session FD ioctl */ +#define LTTNG_KERNEL_METADATA \ + _IOW(0xF6, 0x54, struct lttng_kernel_channel) +#define LTTNG_KERNEL_CHANNEL \ + _IOW(0xF6, 0x55, struct lttng_kernel_channel) +#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x56) +#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x57) +#define LTTNG_KERNEL_SESSION_TRACK_PID \ + _IOR(0xF6, 0x58, int32_t) +#define LTTNG_KERNEL_SESSION_UNTRACK_PID \ + _IOR(0xF6, 0x59, int32_t) +/* + * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO + * are generating two different ioctl numbers, but this was not done on + * purpose. We should generally try to avoid those duplications. + */ +#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58) +#define LTTNG_KERNEL_SESSION_METADATA_REGEN _IO(0xF6, 0x59) +/* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */ +#define LTTNG_KERNEL_SESSION_STATEDUMP _IO(0xF6, 0x5C) +#define LTTNG_KERNEL_SESSION_SET_NAME \ + _IOR(0xF6, 0x5D, struct lttng_kernel_session_name) +#define LTTNG_KERNEL_SESSION_SET_CREATION_TIME \ + _IOR(0xF6, 0x5E, struct lttng_kernel_session_creation_time) + +/* Channel FD ioctl */ +#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62) +#define LTTNG_KERNEL_EVENT \ + _IOW(0xF6, 0x63, struct lttng_kernel_event) +#define LTTNG_KERNEL_SYSCALL_MASK \ + _IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask) + +/* Event and Channel FD ioctl */ +#define LTTNG_KERNEL_CONTEXT \ + _IOW(0xF6, 0x71, struct lttng_kernel_context) + +/* Event, Channel and Session ioctl */ +#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82) +#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83) + +/* Event FD ioctl */ +#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90) +#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91) + +/* Session FD ioctl (continued) */ +#define LTTNG_KERNEL_SESSION_LIST_TRACKER_IDS \ + _IOR(0xF6, 0xA0, struct lttng_kernel_tracker_args) +#define LTTNG_KERNEL_SESSION_TRACK_ID \ + _IOR(0xF6, 0xA1, struct lttng_kernel_tracker_args) +#define LTTNG_KERNEL_SESSION_UNTRACK_ID \ + _IOR(0xF6, 0xA2, struct lttng_kernel_tracker_args) #endif /* _LTT_KERNEL_IOCTL_H */