[lttng-modules.git] / include / lttng / abi-old.h

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * 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_ABI_OLD_CHANNEL_PADDING	LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
struct lttng_kernel_abi_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_abi_output output;	/* splice, mmap */
	char padding[LTTNG_KERNEL_ABI_OLD_CHANNEL_PADDING];
};

struct lttng_kernel_abi_old_kretprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
};

/*
 * Either addr is used, or symbol_name and offset.
 */
struct lttng_kernel_abi_old_kprobe {
	uint64_t addr;

	uint64_t offset;
	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
};

struct lttng_kernel_abi_old_function_tracer {
	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
};

/*
 * For syscall tracing, name = '\0' means "enable all".
 */
#define LTTNG_KERNEL_ABI_OLD_EVENT_PADDING1	16
#define LTTNG_KERNEL_ABI_OLD_EVENT_PADDING2	LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
struct lttng_kernel_abi_old_event {
	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];	/* event name */
	enum lttng_kernel_abi_instrumentation instrumentation;
	char padding[LTTNG_KERNEL_ABI_OLD_EVENT_PADDING1];

	/* Per instrumentation type configuration */
	union {
		struct lttng_kernel_abi_old_kretprobe kretprobe;
		struct lttng_kernel_abi_old_kprobe kprobe;
		struct lttng_kernel_abi_old_function_tracer ftrace;
		char padding[LTTNG_KERNEL_ABI_OLD_EVENT_PADDING2];
	} u;
};

struct lttng_kernel_abi_old_tracer_version {
	uint32_t major;
	uint32_t minor;
	uint32_t patchlevel;
};

struct lttng_kernel_abi_old_calibrate {
	enum lttng_kernel_abi_calibrate_type type;	/* type (input) */
};

struct lttng_kernel_abi_old_perf_counter_ctx {
	uint32_t type;
	uint64_t config;
	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
};

#define LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING1	16
#define LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING2	LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
struct lttng_kernel_abi_old_context {
	enum lttng_kernel_abi_context_type ctx;
	char padding[LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING1];

	union {
		struct lttng_kernel_abi_old_perf_counter_ctx perf_counter;
		char padding[LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING2];
	} u;
};

/* LTTng file descriptor ioctl */
#define LTTNG_KERNEL_ABI_OLD_SESSION		_IO(0xF6, 0x40)
#define LTTNG_KERNEL_ABI_OLD_TRACER_VERSION		\
	_IOR(0xF6, 0x41, struct lttng_kernel_abi_old_tracer_version)
#define LTTNG_KERNEL_ABI_OLD_TRACEPOINT_LIST	_IO(0xF6, 0x42)
#define LTTNG_KERNEL_ABI_OLD_WAIT_QUIESCENT		_IO(0xF6, 0x43)
#define LTTNG_KERNEL_ABI_OLD_CALIBRATE		\
	_IOWR(0xF6, 0x44, struct lttng_kernel_abi_old_calibrate)

/* Session FD ioctl */
#define LTTNG_KERNEL_ABI_OLD_METADATA		\
	_IOW(0xF6, 0x50, struct lttng_kernel_abi_old_channel)
#define LTTNG_KERNEL_ABI_OLD_CHANNEL		\
	_IOW(0xF6, 0x51, struct lttng_kernel_abi_old_channel)
#define LTTNG_KERNEL_ABI_OLD_SESSION_START		_IO(0xF6, 0x52)
#define LTTNG_KERNEL_ABI_OLD_SESSION_STOP		_IO(0xF6, 0x53)

/* Channel FD ioctl */
#define LTTNG_KERNEL_ABI_OLD_STREAM			_IO(0xF6, 0x60)
#define LTTNG_KERNEL_ABI_OLD_EVENT			\
	_IOW(0xF6, 0x61, struct lttng_kernel_abi_old_event)

/* Event and Channel FD ioctl */
#define LTTNG_KERNEL_ABI_OLD_CONTEXT		\
	_IOW(0xF6, 0x70, struct lttng_kernel_abi_old_context)

/* Event, Channel and Session ioctl */
#define LTTNG_KERNEL_ABI_OLD_ENABLE			_IO(0xF6, 0x80)
#define LTTNG_KERNEL_ABI_OLD_DISABLE		_IO(0xF6, 0x81)

#endif /* _LTTNG_ABI_OLD_H */
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
9f36eaed	2	*
2df37e95	3	* lttng/abi-old.h
6dccd6c1 JD	4	*
	5	* LTTng old ABI header (without support for compat 32/64 bits)
	6	*
	7	* Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6dccd6c1 JD	8	*/
6dccd6c1 JD	9
9f36eaed MJ	10	#ifndef _LTTNG_ABI_OLD_H
	11	#define _LTTNG_ABI_OLD_H
	12
6dccd6c1	13	#include <linux/fs.h>
2df37e95	14	#include <lttng/abi.h>
6dccd6c1 JD	15
	16	/*
	17	* LTTng DebugFS ABI structures.
	18	*/
606828e4 MD	19	#define LTTNG_KERNEL_ABI_OLD_CHANNEL_PADDING LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
606828e4 MD	20	struct lttng_kernel_abi_old_channel {
6dccd6c1 JD	21	int overwrite; /* 1: overwrite, 0: discard */
	22	uint64_t subbuf_size; /* in bytes */
	23	uint64_t num_subbuf;
	24	unsigned int switch_timer_interval; /* usecs */
	25	unsigned int read_timer_interval; /* usecs */
606828e4 MD	26	enum lttng_kernel_abi_output output; /* splice, mmap */
606828e4 MD	27	char padding[LTTNG_KERNEL_ABI_OLD_CHANNEL_PADDING];
6dccd6c1 JD	28	};
6dccd6c1 JD	29
606828e4	30	struct lttng_kernel_abi_old_kretprobe {
6dccd6c1 JD	31	uint64_t addr;
	32
	33	uint64_t offset;
606828e4	34	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
6dccd6c1 JD	35	};
	36
	37	/*
	38	* Either addr is used, or symbol_name and offset.
	39	*/
606828e4	40	struct lttng_kernel_abi_old_kprobe {
6dccd6c1 JD	41	uint64_t addr;
	42
	43	uint64_t offset;
606828e4	44	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
6dccd6c1 JD	45	};
6dccd6c1 JD	46
606828e4 MD	47	struct lttng_kernel_abi_old_function_tracer {
606828e4 MD	48	char symbol_name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
6dccd6c1 JD	49	};
	50
	51	/*
	52	* For syscall tracing, name = '\0' means "enable all".
	53	*/
606828e4 MD	54	#define LTTNG_KERNEL_ABI_OLD_EVENT_PADDING1 16
	55	#define LTTNG_KERNEL_ABI_OLD_EVENT_PADDING2 LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
	56	struct lttng_kernel_abi_old_event {
	57	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN]; /* event name */
	58	enum lttng_kernel_abi_instrumentation instrumentation;
	59	char padding[LTTNG_KERNEL_ABI_OLD_EVENT_PADDING1];
6dccd6c1 JD	60
	61	/* Per instrumentation type configuration */
	62	union {
606828e4 MD	63	struct lttng_kernel_abi_old_kretprobe kretprobe;
	64	struct lttng_kernel_abi_old_kprobe kprobe;
	65	struct lttng_kernel_abi_old_function_tracer ftrace;
	66	char padding[LTTNG_KERNEL_ABI_OLD_EVENT_PADDING2];
6dccd6c1 JD	67	} u;
	68	};
	69
606828e4	70	struct lttng_kernel_abi_old_tracer_version {
6dccd6c1 JD	71	uint32_t major;
	72	uint32_t minor;
	73	uint32_t patchlevel;
	74	};
	75
606828e4 MD	76	struct lttng_kernel_abi_old_calibrate {
606828e4 MD	77	enum lttng_kernel_abi_calibrate_type type; /* type (input) */
6dccd6c1 JD	78	};
6dccd6c1 JD	79
606828e4	80	struct lttng_kernel_abi_old_perf_counter_ctx {
6dccd6c1 JD	81	uint32_t type;
6dccd6c1 JD	82	uint64_t config;
606828e4	83	char name[LTTNG_KERNEL_ABI_SYM_NAME_LEN];
6dccd6c1 JD	84	};
6dccd6c1 JD	85
606828e4 MD	86	#define LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING1 16
	87	#define LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING2 LTTNG_KERNEL_ABI_SYM_NAME_LEN + 32
	88	struct lttng_kernel_abi_old_context {
	89	enum lttng_kernel_abi_context_type ctx;
	90	char padding[LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING1];
6dccd6c1 JD	91
6dccd6c1 JD	92	union {
606828e4 MD	93	struct lttng_kernel_abi_old_perf_counter_ctx perf_counter;
606828e4 MD	94	char padding[LTTNG_KERNEL_ABI_OLD_CONTEXT_PADDING2];
6dccd6c1 JD	95	} u;
	96	};
	97
	98	/* LTTng file descriptor ioctl */
606828e4 MD	99	#define LTTNG_KERNEL_ABI_OLD_SESSION _IO(0xF6, 0x40)
	100	#define LTTNG_KERNEL_ABI_OLD_TRACER_VERSION \
	101	_IOR(0xF6, 0x41, struct lttng_kernel_abi_old_tracer_version)
	102	#define LTTNG_KERNEL_ABI_OLD_TRACEPOINT_LIST _IO(0xF6, 0x42)
	103	#define LTTNG_KERNEL_ABI_OLD_WAIT_QUIESCENT _IO(0xF6, 0x43)
	104	#define LTTNG_KERNEL_ABI_OLD_CALIBRATE \
	105	_IOWR(0xF6, 0x44, struct lttng_kernel_abi_old_calibrate)
6dccd6c1 JD	106
6dccd6c1 JD	107	/* Session FD ioctl */
606828e4 MD	108	#define LTTNG_KERNEL_ABI_OLD_METADATA \
	109	_IOW(0xF6, 0x50, struct lttng_kernel_abi_old_channel)
	110	#define LTTNG_KERNEL_ABI_OLD_CHANNEL \
	111	_IOW(0xF6, 0x51, struct lttng_kernel_abi_old_channel)
	112	#define LTTNG_KERNEL_ABI_OLD_SESSION_START _IO(0xF6, 0x52)
	113	#define LTTNG_KERNEL_ABI_OLD_SESSION_STOP _IO(0xF6, 0x53)
6dccd6c1 JD	114
6dccd6c1 JD	115	/* Channel FD ioctl */
606828e4 MD	116	#define LTTNG_KERNEL_ABI_OLD_STREAM _IO(0xF6, 0x60)
	117	#define LTTNG_KERNEL_ABI_OLD_EVENT \
	118	_IOW(0xF6, 0x61, struct lttng_kernel_abi_old_event)
6dccd6c1 JD	119
6dccd6c1 JD	120	/* Event and Channel FD ioctl */
606828e4 MD	121	#define LTTNG_KERNEL_ABI_OLD_CONTEXT \
606828e4 MD	122	_IOW(0xF6, 0x70, struct lttng_kernel_abi_old_context)
6dccd6c1 JD	123
6dccd6c1 JD	124	/* Event, Channel and Session ioctl */
606828e4 MD	125	#define LTTNG_KERNEL_ABI_OLD_ENABLE _IO(0xF6, 0x80)
606828e4 MD	126	#define LTTNG_KERNEL_ABI_OLD_DISABLE _IO(0xF6, 0x81)
6dccd6c1 JD	127
6dccd6c1 JD	128	#endif /* _LTTNG_ABI_OLD_H */