X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Flttng-kernel.h;h=cd343bb766c81ea39f7f2ae8dbcd6de058954679;hp=cbeed1b1982c057d944d64c5ba2496a4f411e492;hb=cfb1c9bcab7801380b6ffbab9e505b861072254c;hpb=d14d33bf091e72b23b1f90ea18a0a01bed098b76 diff --git a/src/common/lttng-kernel.h b/src/common/lttng-kernel.h index cbeed1b19..cd343bb76 100644 --- a/src/common/lttng-kernel.h +++ b/src/common/lttng-kernel.h @@ -1,28 +1,24 @@ /* - * Copyright (C) 2011 - Julien Desfossez - * Mathieu Desnoyers - * David Goulet + * Copyright (C) 2011 Julien Desfossez + * Copyright (C) 2011 Mathieu Desnoyers + * Copyright (C) 2011 David Goulet * - * 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. + * SPDX-License-Identifier: GPL-2.0-only * - * 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., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _LTTNG_KERNEL_H #define _LTTNG_KERNEL_H #include +#include +#include +#include #define LTTNG_KERNEL_SYM_NAME_LEN 256 +#define LTTNG_KERNEL_MAX_UPROBE_NUM 32 +#define LTTNG_KERNEL_SESSION_NAME_LEN 256 +#define LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN 26 /* * LTTng DebugFS ABI structures. @@ -38,11 +34,12 @@ enum lttng_kernel_instrumentation { LTTNG_KERNEL_KRETPROBE = 3, LTTNG_KERNEL_NOOP = 4, /* not hooked */ LTTNG_KERNEL_SYSCALL = 5, + LTTNG_KERNEL_UPROBE = 6, }; enum lttng_kernel_context_type { LTTNG_KERNEL_CONTEXT_PID = 0, - LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1, + LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1, LTTNG_KERNEL_CONTEXT_PROCNAME = 2, LTTNG_KERNEL_CONTEXT_PRIO = 3, LTTNG_KERNEL_CONTEXT_NICE = 4, @@ -51,6 +48,34 @@ enum lttng_kernel_context_type { LTTNG_KERNEL_CONTEXT_VTID = 7, LTTNG_KERNEL_CONTEXT_PPID = 8, LTTNG_KERNEL_CONTEXT_VPPID = 9, + LTTNG_KERNEL_CONTEXT_HOSTNAME = 10, + LTTNG_KERNEL_CONTEXT_CPU_ID = 11, + LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12, + LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13, + LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14, + LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15, + LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL = 16, + LTTNG_KERNEL_CONTEXT_CALLSTACK_USER = 17, + LTTNG_KERNEL_CONTEXT_CGROUP_NS = 18, + LTTNG_KERNEL_CONTEXT_IPC_NS = 19, + LTTNG_KERNEL_CONTEXT_MNT_NS = 20, + LTTNG_KERNEL_CONTEXT_NET_NS = 21, + LTTNG_KERNEL_CONTEXT_PID_NS = 22, + LTTNG_KERNEL_CONTEXT_USER_NS = 23, + LTTNG_KERNEL_CONTEXT_UTS_NS = 24, + LTTNG_KERNEL_CONTEXT_UID = 25, + LTTNG_KERNEL_CONTEXT_EUID = 26, + LTTNG_KERNEL_CONTEXT_SUID = 27, + LTTNG_KERNEL_CONTEXT_GID = 28, + LTTNG_KERNEL_CONTEXT_EGID = 29, + LTTNG_KERNEL_CONTEXT_SGID = 30, + LTTNG_KERNEL_CONTEXT_VUID = 31, + LTTNG_KERNEL_CONTEXT_VEUID = 32, + LTTNG_KERNEL_CONTEXT_VSUID = 33, + LTTNG_KERNEL_CONTEXT_VGID = 34, + LTTNG_KERNEL_CONTEXT_VEGID = 35, + LTTNG_KERNEL_CONTEXT_VSGID = 36, + LTTNG_KERNEL_CONTEXT_TIME_NS = 37, }; /* Perf counter attributes */ @@ -58,7 +83,7 @@ struct lttng_kernel_perf_counter_ctx { uint32_t type; uint64_t config; char name[LTTNG_KERNEL_SYM_NAME_LEN]; -}; +} LTTNG_PACKED; /* Event/Channel context */ #define LTTNG_KERNEL_CONTEXT_PADDING1 16 @@ -71,14 +96,14 @@ struct lttng_kernel_context { struct lttng_kernel_perf_counter_ctx perf_counter; char padding[LTTNG_KERNEL_CONTEXT_PADDING2]; } u; -}; +} LTTNG_PACKED; struct lttng_kernel_kretprobe { uint64_t addr; uint64_t offset; char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; -}; +} LTTNG_PACKED; /* * Either addr is used, or symbol_name and offset. @@ -88,18 +113,58 @@ struct lttng_kernel_kprobe { uint64_t offset; char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; +} LTTNG_PACKED; + +struct lttng_kernel_uprobe { + int fd; +} LTTNG_PACKED; + +struct lttng_kernel_event_callsite_uprobe { + uint64_t offset; +} LTTNG_PACKED; + +struct lttng_kernel_event_callsite { + union { + struct lttng_kernel_event_callsite_uprobe uprobe; + } u; +} LTTNG_PACKED; + +enum lttng_kernel_syscall_entryexit { + LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0, + LTTNG_KERNEL_SYSCALL_ENTRY = 1, + LTTNG_KERNEL_SYSCALL_EXIT = 2, +}; + +enum lttng_kernel_syscall_abi { + LTTNG_KERNEL_SYSCALL_ABI_ALL = 0, + LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, + LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, +}; + +enum lttng_kernel_syscall_match { + LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0, + LTTNG_KERNEL_SYSCALL_MATCH_NR = 1, }; +struct lttng_kernel_syscall { + uint8_t entryexit; /* enum lttng_kernel_syscall_entryexit */ + uint8_t abi; /* enum lttng_kernel_syscall_abi */ + uint8_t match; /* enum lttng_kernel_syscall_match */ + uint8_t padding; + uint32_t nr; /* For LTTNG_SYSCALL_MATCH_NR */ +} LTTNG_PACKED; + /* Function tracer */ struct lttng_kernel_function { char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; -}; +} LTTNG_PACKED; -#define LTTNG_KERNEL_EVENT_PADDING1 16 +#define LTTNG_KERNEL_EVENT_PADDING1 8 #define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 struct lttng_kernel_event { char name[LTTNG_KERNEL_SYM_NAME_LEN]; enum lttng_kernel_instrumentation instrumentation; + uint64_t token; char padding[LTTNG_KERNEL_EVENT_PADDING1]; /* Per instrumentation type configuration */ @@ -107,22 +172,91 @@ struct lttng_kernel_event { struct lttng_kernel_kretprobe kretprobe; struct lttng_kernel_kprobe kprobe; struct lttng_kernel_function ftrace; + struct lttng_kernel_uprobe uprobe; + struct lttng_kernel_syscall syscall; char padding[LTTNG_KERNEL_EVENT_PADDING2]; } u; -}; +} LTTNG_PACKED; + +#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING 40 +struct lttng_kernel_event_notifier { + struct lttng_kernel_event event; + char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING]; +} LTTNG_PACKED; + +#define LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING 34 +struct lttng_kernel_event_notifier_notification { + uint64_t token; + char padding[LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING]; +} LTTNG_PACKED; struct lttng_kernel_tracer_version { uint32_t major; uint32_t minor; uint32_t patchlevel; -}; +} LTTNG_PACKED; + +struct lttng_kernel_tracer_abi_version { + uint32_t major; + uint32_t minor; +} LTTNG_PACKED; + +struct lttng_kernel_syscall_mask { + uint32_t len; /* in bits */ + char mask[]; +} LTTNG_PACKED; + +/* + * kernel channel + */ +#define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 +struct lttng_kernel_channel { + uint64_t subbuf_size; /* bytes */ + uint64_t num_subbuf; /* power of 2 */ + unsigned int switch_timer_interval; /* usec */ + unsigned int read_timer_interval; /* usec */ + enum lttng_event_output output; /* splice, mmap */ + + int overwrite; /* 1: overwrite, 0: discard */ + char padding[LTTNG_KERNEL_CHANNEL_PADDING1]; +} LTTNG_PACKED; + +#define KERNEL_FILTER_BYTECODE_MAX_LEN 65536 +struct lttng_kernel_filter_bytecode { + uint32_t len; + uint32_t reloc_offset; + uint64_t seqnum; + char data[0]; +} LTTNG_PACKED; + +/* + * kernel session name + */ +struct lttng_kernel_session_name { + char name[LTTNG_KERNEL_SESSION_NAME_LEN]; +} LTTNG_PACKED; + +/* + * kernel session creation datetime + */ +struct lttng_kernel_session_creation_time { + char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN]; +} LTTNG_PACKED; + +enum lttng_kernel_tracker_type { + LTTNG_KERNEL_TRACKER_UNKNOWN = -1, -enum lttng_kernel_calibrate_type { - LTTNG_KERNEL_CALIBRATE_KRETPROBE, + LTTNG_KERNEL_TRACKER_PID = 0, + LTTNG_KERNEL_TRACKER_VPID = 1, + LTTNG_KERNEL_TRACKER_UID = 2, + LTTNG_KERNEL_TRACKER_VUID = 3, + LTTNG_KERNEL_TRACKER_GID = 4, + LTTNG_KERNEL_TRACKER_VGID = 5, }; -struct lttng_kernel_calibrate { - enum lttng_kernel_calibrate_type type; /* type (input) */ +struct lttng_kernel_tracker_args { + enum lttng_kernel_tracker_type type; + int32_t id; }; #endif /* _LTTNG_KERNEL_H */