+++ /dev/null
-#ifndef _LTTNG_ABI_H
-#define _LTTNG_ABI_H
-
-/*
- * lttng-abi.h
- *
- * LTTng ABI header
- *
- * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/fs.h>
-
-#define LTTNG_KERNEL_SYM_NAME_LEN 256
-
-enum lttng_kernel_instrumentation {
- LTTNG_KERNEL_TRACEPOINT = 0,
- LTTNG_KERNEL_KPROBE = 1,
- LTTNG_KERNEL_FUNCTION = 2,
- LTTNG_KERNEL_KRETPROBE = 3,
- LTTNG_KERNEL_NOOP = 4, /* not hooked */
- LTTNG_KERNEL_SYSCALL = 5,
-};
-
-/*
- * LTTng consumer mode
- */
-enum lttng_kernel_output {
- LTTNG_KERNEL_SPLICE = 0,
- LTTNG_KERNEL_MMAP = 1,
-};
-
-/*
- * LTTng DebugFS ABI structures.
- */
-#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
-struct lttng_kernel_channel {
- int overwrite; /* 1: overwrite, 0: discard */
- uint64_t subbuf_size; /* in bytes */
- uint64_t num_subbuf;
- unsigned int switch_timer_interval; /* usecs */
- unsigned int read_timer_interval; /* usecs */
- enum lttng_kernel_output output; /* splice, mmap */
- char padding[LTTNG_KERNEL_CHANNEL_PADDING];
-};
-
-struct lttng_kernel_kretprobe {
- uint64_t addr;
-
- uint64_t offset;
- char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
-};
-
-/*
- * Either addr is used, or symbol_name and offset.
- */
-struct lttng_kernel_kprobe {
- uint64_t addr;
-
- uint64_t offset;
- char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
-};
-
-struct lttng_kernel_function_tracer {
- char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
-};
-
-/*
- * For syscall tracing, name = '\0' means "enable all".
- */
-#define LTTNG_KERNEL_EVENT_PADDING1 16
-#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
-struct lttng_kernel_event {
- char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
- enum lttng_kernel_instrumentation instrumentation;
- char padding[LTTNG_KERNEL_EVENT_PADDING1];
-
- /* Per instrumentation type configuration */
- union {
- struct lttng_kernel_kretprobe kretprobe;
- struct lttng_kernel_kprobe kprobe;
- struct lttng_kernel_function_tracer ftrace;
- char padding[LTTNG_KERNEL_EVENT_PADDING2];
- } u;
-};
-
-struct lttng_kernel_tracer_version {
- uint32_t major;
- uint32_t minor;
- uint32_t patchlevel;
-};
-
-enum lttng_kernel_calibrate_type {
- LTTNG_KERNEL_CALIBRATE_KRETPROBE,
-};
-
-struct lttng_kernel_calibrate {
- enum lttng_kernel_calibrate_type type; /* type (input) */
-};
-
-enum lttng_kernel_context_type {
- LTTNG_KERNEL_CONTEXT_PID = 0,
- LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
- LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
- LTTNG_KERNEL_CONTEXT_PRIO = 3,
- LTTNG_KERNEL_CONTEXT_NICE = 4,
- LTTNG_KERNEL_CONTEXT_VPID = 5,
- LTTNG_KERNEL_CONTEXT_TID = 6,
- LTTNG_KERNEL_CONTEXT_VTID = 7,
- LTTNG_KERNEL_CONTEXT_PPID = 8,
- LTTNG_KERNEL_CONTEXT_VPPID = 9,
- LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
-};
-
-struct lttng_kernel_perf_counter_ctx {
- uint32_t type;
- uint64_t config;
- char name[LTTNG_KERNEL_SYM_NAME_LEN];
-};
-
-#define LTTNG_KERNEL_CONTEXT_PADDING1 16
-#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
-struct lttng_kernel_context {
- enum lttng_kernel_context_type ctx;
- char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
-
- union {
- struct lttng_kernel_perf_counter_ctx perf_counter;
- char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
- } u;
-};
-
-/* 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)
-
-/* Session FD ioctl */
-#define LTTNG_KERNEL_METADATA \
- _IOW(0xF6, 0x50, struct lttng_kernel_channel)
-#define LTTNG_KERNEL_CHANNEL \
- _IOW(0xF6, 0x51, struct lttng_kernel_channel)
-#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x52)
-#define LTTNG_KERNEL_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)
-
-/* Event and Channel FD ioctl */
-#define LTTNG_KERNEL_CONTEXT \
- _IOW(0xF6, 0x70, struct lttng_kernel_context)
-
-/* Event, Channel and Session ioctl */
-#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x80)
-#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x81)
-
-#endif /* _LTTNG_ABI_H */
projects / lttng-modules.git / blobdiff