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/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
*
* lttng-abi-old.h
*
* LTTng old ABI header (without support for compat 32/64 bits)
*
* Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
#ifndef _LTTNG_ABI_OLD_H
#define _LTTNG_ABI_OLD_H
#include <linux/fs.h>
#include <lttng-abi.h>
/*
* LTTng DebugFS ABI structures.
*/
#define LTTNG_KERNEL_OLD_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_old_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_OLD_CHANNEL_PADDING];
};
struct lttng_kernel_old_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_old_kprobe {
uint64_t addr;
uint64_t offset;
char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
};
struct lttng_kernel_old_function_tracer {
char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
};
/*
* For syscall tracing, name = '\0' means "enable all".
*/
#define LTTNG_KERNEL_OLD_EVENT_PADDING1 16
#define LTTNG_KERNEL_OLD_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_old_event {
char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
enum lttng_kernel_instrumentation instrumentation;
char padding[LTTNG_KERNEL_OLD_EVENT_PADDING1];
/* Per instrumentation type configuration */
union {
struct lttng_kernel_old_kretprobe kretprobe;
struct lttng_kernel_old_kprobe kprobe;
struct lttng_kernel_old_function_tracer ftrace;
char padding[LTTNG_KERNEL_OLD_EVENT_PADDING2];
} u;
};
struct lttng_kernel_old_tracer_version {
uint32_t major;
uint32_t minor;
uint32_t patchlevel;
};
struct lttng_kernel_old_calibrate {
enum lttng_kernel_calibrate_type type; /* type (input) */
};
struct lttng_kernel_old_perf_counter_ctx {
uint32_t type;
uint64_t config;
char name[LTTNG_KERNEL_SYM_NAME_LEN];
};
#define LTTNG_KERNEL_OLD_CONTEXT_PADDING1 16
#define LTTNG_KERNEL_OLD_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_old_context {
enum lttng_kernel_context_type ctx;
char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING1];
union {
struct lttng_kernel_old_perf_counter_ctx perf_counter;
char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING2];
} u;
};
/* LTTng file descriptor ioctl */
#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)
#define LTTNG_KERNEL_OLD_CALIBRATE \
_IOWR(0xF6, 0x44, struct lttng_kernel_old_calibrate)
/* Session FD ioctl */
#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_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_OLD_CONTEXT \
_IOW(0xF6, 0x70, struct lttng_kernel_old_context)
/* Event, Channel and Session ioctl */
#define LTTNG_KERNEL_OLD_ENABLE _IO(0xF6, 0x80)
#define LTTNG_KERNEL_OLD_DISABLE _IO(0xF6, 0x81)
#endif /* _LTTNG_ABI_OLD_H */
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