X-Git-Url: http://git.liburcu.org/?p=lttng-modules.git;a=blobdiff_plain;f=lttng-events.h;h=8fe36a7326121f7f7325112c7d77b0105e1eb9ea;hp=46d80bcdb0edcd1a6d3599e7f630f240ecb28b0f;hb=HEAD;hpb=d83004aa718065e5221d8ef4b99e4302b70b3df9

diff --git a/lttng-events.h b/lttng-events.h
deleted file mode 100644
index 46d80bcd..00000000
--- a/lttng-events.h
+++ /dev/null
@@ -1,505 +0,0 @@
-#ifndef _LTTNG_EVENTS_H
-#define _LTTNG_EVENTS_H
-
-/*
- * lttng-events.h
- *
- * Holds LTTng per-session event registry.
- *
- * 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/version.h>
-#include <linux/list.h>
-#include <linux/kprobes.h>
-#include <linux/kref.h>
-#include "wrapper/uuid.h"
-#include "lttng-abi.h"
-#include "lttng-abi-old.h"
-
-#define lttng_is_signed_type(type)	(((type)(-1)) < 0)
-
-struct lttng_channel;
-struct lttng_session;
-struct lttng_metadata_cache;
-struct lib_ring_buffer_ctx;
-struct perf_event;
-struct perf_event_attr;
-
-/* Type description */
-
-/* Update the astract_types name table in lttng-types.c along with this enum */
-enum abstract_types {
-	atype_integer,
-	atype_enum,
-	atype_array,
-	atype_sequence,
-	atype_string,
-	NR_ABSTRACT_TYPES,
-};
-
-/* Update the string_encodings name table in lttng-types.c along with this enum */
-enum lttng_string_encodings {
-	lttng_encode_none = 0,
-	lttng_encode_UTF8 = 1,
-	lttng_encode_ASCII = 2,
-	NR_STRING_ENCODINGS,
-};
-
-enum channel_type {
-	PER_CPU_CHANNEL,
-	METADATA_CHANNEL,
-};
-
-struct lttng_enum_entry {
-	unsigned long long start, end;	/* start and end are inclusive */
-	const char *string;
-};
-
-#define __type_integer(_type, _byte_order, _base, _encoding)	\
-	{							\
-	    .atype = atype_integer,				\
-	    .u.basic.integer =					\
-		{						\
-		  .size = sizeof(_type) * CHAR_BIT,		\
-		  .alignment = lttng_alignof(_type) * CHAR_BIT,	\
-		  .signedness = lttng_is_signed_type(_type),	\
-		  .reverse_byte_order = _byte_order != __BYTE_ORDER,	\
-		  .base = _base,				\
-		  .encoding = lttng_encode_##_encoding,		\
-		},						\
-	}							\
-
-struct lttng_integer_type {
-	unsigned int size;		/* in bits */
-	unsigned short alignment;	/* in bits */
-	unsigned int signedness:1,
-		reverse_byte_order:1;
-	unsigned int base;		/* 2, 8, 10, 16, for pretty print */
-	enum lttng_string_encodings encoding;
-};
-
-union _lttng_basic_type {
-	struct lttng_integer_type integer;
-	struct {
-		const char *name;
-	} enumeration;
-	struct {
-		enum lttng_string_encodings encoding;
-	} string;
-};
-
-struct lttng_basic_type {
-	enum abstract_types atype;
-	union {
-		union _lttng_basic_type basic;
-	} u;
-};
-
-struct lttng_type {
-	enum abstract_types atype;
-	union {
-		union _lttng_basic_type basic;
-		struct {
-			struct lttng_basic_type elem_type;
-			unsigned int length;		/* num. elems. */
-		} array;
-		struct {
-			struct lttng_basic_type length_type;
-			struct lttng_basic_type elem_type;
-		} sequence;
-	} u;
-};
-
-struct lttng_enum {
-	const char *name;
-	struct lttng_type container_type;
-	const struct lttng_enum_entry *entries;
-	unsigned int len;
-};
-
-/* Event field description */
-
-struct lttng_event_field {
-	const char *name;
-	struct lttng_type type;
-};
-
-/*
- * We need to keep this perf counter field separately from struct
- * lttng_ctx_field because cpu hotplug needs fixed-location addresses.
- */
-struct lttng_perf_counter_field {
-	struct notifier_block nb;
-	int hp_enable;
-	struct perf_event_attr *attr;
-	struct perf_event **e;	/* per-cpu array */
-};
-
-struct lttng_ctx_field {
-	struct lttng_event_field event_field;
-	size_t (*get_size)(size_t offset);
-	void (*record)(struct lttng_ctx_field *field,
-		       struct lib_ring_buffer_ctx *ctx,
-		       struct lttng_channel *chan);
-	union {
-		struct lttng_perf_counter_field *perf_counter;
-	} u;
-	void (*destroy)(struct lttng_ctx_field *field);
-};
-
-struct lttng_ctx {
-	struct lttng_ctx_field *fields;
-	unsigned int nr_fields;
-	unsigned int allocated_fields;
-};
-
-struct lttng_event_desc {
-	const char *name;
-	void *probe_callback;
-	const struct lttng_event_ctx *ctx;	/* context */
-	const struct lttng_event_field *fields;	/* event payload */
-	unsigned int nr_fields;
-	struct module *owner;
-};
-
-struct lttng_probe_desc {
-	const struct lttng_event_desc **event_desc;
-	unsigned int nr_events;
-	struct list_head head;			/* chain registered probes */
-};
-
-struct lttng_krp;				/* Kretprobe handling */
-
-/*
- * lttng_event structure is referred to by the tracing fast path. It must be
- * kept small.
- */
-struct lttng_event {
-	unsigned int id;
-	struct lttng_channel *chan;
-	int enabled;
-	const struct lttng_event_desc *desc;
-	void *filter;
-	struct lttng_ctx *ctx;
-	enum lttng_kernel_instrumentation instrumentation;
-	union {
-		struct {
-			struct kprobe kp;
-			char *symbol_name;
-		} kprobe;
-		struct {
-			struct lttng_krp *lttng_krp;
-			char *symbol_name;
-		} kretprobe;
-		struct {
-			char *symbol_name;
-		} ftrace;
-	} u;
-	struct list_head list;		/* Event list */
-	unsigned int metadata_dumped:1;
-};
-
-struct lttng_channel_ops {
-	struct channel *(*channel_create)(const char *name,
-				struct lttng_channel *lttng_chan,
-				void *buf_addr,
-				size_t subbuf_size, size_t num_subbuf,
-				unsigned int switch_timer_interval,
-				unsigned int read_timer_interval);
-	void (*channel_destroy)(struct channel *chan);
-	struct lib_ring_buffer *(*buffer_read_open)(struct channel *chan);
-	int (*buffer_has_read_closed_stream)(struct channel *chan);
-	void (*buffer_read_close)(struct lib_ring_buffer *buf);
-	int (*event_reserve)(struct lib_ring_buffer_ctx *ctx,
-			     uint32_t event_id);
-	void (*event_commit)(struct lib_ring_buffer_ctx *ctx);
-	void (*event_write)(struct lib_ring_buffer_ctx *ctx, const void *src,
-			    size_t len);
-	void (*event_write_from_user)(struct lib_ring_buffer_ctx *ctx,
-				      const void *src, size_t len);
-	void (*event_memset)(struct lib_ring_buffer_ctx *ctx,
-			     int c, size_t len);
-	/*
-	 * packet_avail_size returns the available size in the current
-	 * packet. Note that the size returned is only a hint, since it
-	 * may change due to concurrent writes.
-	 */
-	size_t (*packet_avail_size)(struct channel *chan);
-	wait_queue_head_t *(*get_writer_buf_wait_queue)(struct channel *chan, int cpu);
-	wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan);
-	int (*is_finalized)(struct channel *chan);
-	int (*is_disabled)(struct channel *chan);
-};
-
-struct lttng_transport {
-	char *name;
-	struct module *owner;
-	struct list_head node;
-	struct lttng_channel_ops ops;
-};
-
-struct lttng_channel {
-	unsigned int id;
-	struct channel *chan;		/* Channel buffers */
-	int enabled;
-	struct lttng_ctx *ctx;
-	/* Event ID management */
-	struct lttng_session *session;
-	struct file *file;		/* File associated to channel */
-	unsigned int free_event_id;	/* Next event ID to allocate */
-	struct list_head list;		/* Channel list */
-	struct lttng_channel_ops *ops;
-	struct lttng_transport *transport;
-	struct lttng_event **sc_table;	/* for syscall tracing */
-	struct lttng_event **compat_sc_table;
-	struct lttng_event *sc_unknown;	/* for unknown syscalls */
-	struct lttng_event *sc_compat_unknown;
-	struct lttng_event *sc_exit;	/* for syscall exit */
-	int header_type;		/* 0: unset, 1: compact, 2: large */
-	enum channel_type channel_type;
-	unsigned int metadata_dumped:1;
-};
-
-struct lttng_metadata_stream {
-	void *priv;			/* Ring buffer private data */
-	struct lttng_metadata_cache *metadata_cache;
-	unsigned int metadata_cache_read; /* Bytes read from the cache */
-	int finalized;			/* Has channel been finalized */
-	wait_queue_head_t read_wait;	/* Reader buffer-level wait queue */
-	struct list_head list;		/* Stream list */
-};
-
-struct lttng_session {
-	int active;			/* Is trace session active ? */
-	int been_active;		/* Has trace session been active ? */
-	struct file *file;		/* File associated to session */
-	struct list_head chan;		/* Channel list head */
-	struct list_head events;	/* Event list head */
-	struct list_head list;		/* Session list */
-	unsigned int free_chan_id;	/* Next chan ID to allocate */
-	uuid_le uuid;			/* Trace session unique ID */
-	struct lttng_metadata_cache *metadata_cache;
-	unsigned int metadata_dumped:1;
-};
-
-struct lttng_metadata_cache {
-	char *data;			/* Metadata cache */
-	unsigned int cache_alloc;	/* Metadata allocated size (bytes) */
-	unsigned int metadata_written;	/* Number of bytes written in metadata cache */
-	struct kref refcount;		/* Metadata cache usage */
-	struct list_head metadata_stream;	/* Metadata stream list */
-};
-
-struct lttng_session *lttng_session_create(void);
-int lttng_session_enable(struct lttng_session *session);
-int lttng_session_disable(struct lttng_session *session);
-void lttng_session_destroy(struct lttng_session *session);
-void metadata_cache_destroy(struct kref *kref);
-
-struct lttng_channel *lttng_channel_create(struct lttng_session *session,
-				       const char *transport_name,
-				       void *buf_addr,
-				       size_t subbuf_size, size_t num_subbuf,
-				       unsigned int switch_timer_interval,
-				       unsigned int read_timer_interval,
-				       enum channel_type channel_type);
-struct lttng_channel *lttng_global_channel_create(struct lttng_session *session,
-				       int overwrite, void *buf_addr,
-				       size_t subbuf_size, size_t num_subbuf,
-				       unsigned int switch_timer_interval,
-				       unsigned int read_timer_interval);
-
-void lttng_metadata_channel_destroy(struct lttng_channel *chan);
-struct lttng_event *lttng_event_create(struct lttng_channel *chan,
-				   struct lttng_kernel_event *event_param,
-				   void *filter,
-				   const struct lttng_event_desc *internal_desc);
-struct lttng_event *lttng_event_compat_old_create(struct lttng_channel *chan,
-		struct lttng_kernel_old_event *old_event_param,
-		void *filter,
-		const struct lttng_event_desc *internal_desc);
-
-int lttng_channel_enable(struct lttng_channel *channel);
-int lttng_channel_disable(struct lttng_channel *channel);
-int lttng_event_enable(struct lttng_event *event);
-int lttng_event_disable(struct lttng_event *event);
-
-void lttng_transport_register(struct lttng_transport *transport);
-void lttng_transport_unregister(struct lttng_transport *transport);
-
-void synchronize_trace(void);
-int lttng_abi_init(void);
-int lttng_abi_compat_old_init(void);
-void lttng_abi_exit(void);
-void lttng_abi_compat_old_exit(void);
-
-int lttng_probe_register(struct lttng_probe_desc *desc);
-void lttng_probe_unregister(struct lttng_probe_desc *desc);
-const struct lttng_event_desc *lttng_event_get(const char *name);
-void lttng_event_put(const struct lttng_event_desc *desc);
-int lttng_probes_init(void);
-void lttng_probes_exit(void);
-
-int lttng_metadata_output_channel(struct lttng_channel *chan,
-		struct lttng_metadata_stream *stream);
-
-#if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
-int lttng_syscalls_register(struct lttng_channel *chan, void *filter);
-int lttng_syscalls_unregister(struct lttng_channel *chan);
-#else
-static inline int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
-{
-	return -ENOSYS;
-}
-
-static inline int lttng_syscalls_unregister(struct lttng_channel *chan)
-{
-	return 0;
-}
-#endif
-
-struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
-int lttng_find_context(struct lttng_ctx *ctx, const char *name);
-void lttng_remove_context_field(struct lttng_ctx **ctx,
-				struct lttng_ctx_field *field);
-void lttng_destroy_context(struct lttng_ctx *ctx);
-int lttng_add_pid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_procname_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_prio_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_nice_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_tid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_hostname_to_ctx(struct lttng_ctx **ctx);
-#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
-int lttng_add_perf_counter_to_ctx(uint32_t type,
-				  uint64_t config,
-				  const char *name,
-				  struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_perf_counter_to_ctx(uint32_t type,
-				  uint64_t config,
-				  const char *name,
-				  struct lttng_ctx **ctx)
-{
-	return -ENOSYS;
-}
-#endif
-
-extern int lttng_statedump_start(struct lttng_session *session);
-
-#ifdef CONFIG_KPROBES
-int lttng_kprobes_register(const char *name,
-		const char *symbol_name,
-		uint64_t offset,
-		uint64_t addr,
-		struct lttng_event *event);
-void lttng_kprobes_unregister(struct lttng_event *event);
-void lttng_kprobes_destroy_private(struct lttng_event *event);
-#else
-static inline
-int lttng_kprobes_register(const char *name,
-		const char *symbol_name,
-		uint64_t offset,
-		uint64_t addr,
-		struct lttng_event *event)
-{
-	return -ENOSYS;
-}
-
-static inline
-void lttng_kprobes_unregister(struct lttng_event *event)
-{
-}
-
-static inline
-void lttng_kprobes_destroy_private(struct lttng_event *event)
-{
-}
-#endif
-
-#ifdef CONFIG_KRETPROBES
-int lttng_kretprobes_register(const char *name,
-		const char *symbol_name,
-		uint64_t offset,
-		uint64_t addr,
-		struct lttng_event *event_entry,
-		struct lttng_event *event_exit);
-void lttng_kretprobes_unregister(struct lttng_event *event);
-void lttng_kretprobes_destroy_private(struct lttng_event *event);
-#else
-static inline
-int lttng_kretprobes_register(const char *name,
-		const char *symbol_name,
-		uint64_t offset,
-		uint64_t addr,
-		struct lttng_event *event_entry,
-		struct lttng_event *event_exit)
-{
-	return -ENOSYS;
-}
-
-static inline
-void lttng_kretprobes_unregister(struct lttng_event *event)
-{
-}
-
-static inline
-void lttng_kretprobes_destroy_private(struct lttng_event *event)
-{
-}
-#endif
-
-#ifdef CONFIG_DYNAMIC_FTRACE
-int lttng_ftrace_register(const char *name,
-			  const char *symbol_name,
-			  struct lttng_event *event);
-void lttng_ftrace_unregister(struct lttng_event *event);
-void lttng_ftrace_destroy_private(struct lttng_event *event);
-#else
-static inline
-int lttng_ftrace_register(const char *name,
-			  const char *symbol_name,
-			  struct lttng_event *event)
-{
-	return -ENOSYS;
-}
-
-static inline
-void lttng_ftrace_unregister(struct lttng_event *event)
-{
-}
-
-static inline
-void lttng_ftrace_destroy_private(struct lttng_event *event)
-{
-}
-#endif
-
-int lttng_calibrate(struct lttng_kernel_calibrate *calibrate);
-
-extern const struct file_operations lttng_tracepoint_list_fops;
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
-#define TRACEPOINT_HAS_DATA_ARG
-#endif
-
-#endif /* _LTTNG_EVENTS_H */