#ifndef _LTTNG_EVENTS_H
#define _LTTNG_EVENTS_H
-#include <linux/irq_work.h>
-#include <linux/version.h>
+#include <lttng/kernel-version.h>
#include <linux/list.h>
#include <linux/kprobes.h>
#include <linux/kref.h>
#include <linux/uuid.h>
+#include <linux/irq_work.h>
#include <wrapper/uprobes.h>
#include <lttng/cpuhotplug.h>
#include <lttng/tracer.h>
* lttng_ctx_field because cpu hotplug needs fixed-location addresses.
*/
struct lttng_perf_counter_field {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0))
struct lttng_cpuhp_node cpuhp_prepare;
struct lttng_cpuhp_node cpuhp_online;
#else
struct lttng_event_desc {
const char *name; /* lttng-modules name */
const char *kname; /* Linux kernel name (tracepoints) */
- void *probe_callback;
+ void *probe_callback; /* store-event and count-event probe */
const struct lttng_event_ctx *ctx; /* context */
const struct lttng_event_field *fields; /* event payload */
unsigned int nr_fields;
LTTNG_TYPE_ENABLER = 1,
};
-struct lttng_filter_bytecode_node {
+enum lttng_bytecode_node_type {
+ LTTNG_BYTECODE_NODE_TYPE_FILTER,
+ LTTNG_BYTECODE_NODE_TYPE_CAPTURE,
+};
+
+struct lttng_bytecode_node {
+ enum lttng_bytecode_node_type type;
struct list_head node;
struct lttng_enabler *enabler;
- /*
- * struct lttng_kernel_filter_bytecode has var. sized array, must be
- * last field.
- */
- struct lttng_kernel_filter_bytecode bc;
+ struct {
+ uint32_t len;
+ uint32_t reloc_offset;
+ uint64_t seqnum;
+ char data[];
+ } bc;
};
/*
- * Filter return value masks.
+ * Bytecode interpreter return value masks.
*/
-enum lttng_filter_ret {
- LTTNG_FILTER_DISCARD = 0,
- LTTNG_FILTER_RECORD_FLAG = (1ULL << 0),
+enum lttng_bytecode_interpreter_ret {
+ LTTNG_INTERPRETER_DISCARD = 0,
+ LTTNG_INTERPRETER_RECORD_FLAG = (1ULL << 0),
/* Other bits are kept for future use. */
};
+struct lttng_interpreter_output;
+
struct lttng_bytecode_runtime {
/* Associated bytecode */
- struct lttng_filter_bytecode_node *bc;
- uint64_t (*filter)(void *filter_data, struct lttng_probe_ctx *lttng_probe_ctx,
- const char *filter_stack_data);
+ struct lttng_bytecode_node *bc;
+ union {
+ uint64_t (*filter)(void *filter_data,
+ struct lttng_probe_ctx *lttng_probe_ctx,
+ const char *filter_stack_data);
+ uint64_t (*capture)(void *filter_data,
+ struct lttng_probe_ctx *lttng_probe_ctx,
+ const char *capture_stack_data,
+ struct lttng_interpreter_output *output);
+ } interpreter_funcs;
int link_failed;
struct list_head node; /* list of bytecode runtime in event */
struct lttng_ctx *ctx;
};
struct lttng_uprobe_handler {
- struct lttng_event *event;
+ union {
+ struct lttng_event *event;
+ struct lttng_event_notifier *event_notifier;
+ } u;
loff_t offset;
struct uprobe_consumer up_consumer;
struct list_head node;
};
+struct lttng_kprobe {
+ struct kprobe kp;
+ char *symbol_name;
+ uint64_t user_token;
+};
+
+struct lttng_uprobe {
+ struct inode *inode;
+ struct list_head head;
+ uint64_t user_token;
+};
+
enum lttng_syscall_entryexit {
LTTNG_SYSCALL_ENTRY,
LTTNG_SYSCALL_EXIT,
LTTNG_SYSCALL_ABI_COMPAT,
};
+struct lttng_syscall {
+ struct list_head node; /* chain registered syscall trigger */
+ unsigned int syscall_id;
+ bool is_compat;
+};
+
+enum lttng_key_token_type {
+ LTTNG_KEY_TOKEN_STRING = 0,
+ LTTNG_KEY_TOKEN_EVENT_NAME = 1,
+};
+
+#define LTTNG_KEY_TOKEN_STRING_LEN_MAX LTTNG_KERNEL_KEY_TOKEN_STRING_LEN_MAX
+struct lttng_key_token {
+ enum lttng_key_token_type type;
+ union {
+ char string[LTTNG_KEY_TOKEN_STRING_LEN_MAX];
+ } arg;
+};
+
+#define LTTNG_NR_KEY_TOKEN LTTNG_KERNEL_NR_KEY_TOKEN
+struct lttng_counter_key_dimension {
+ size_t nr_key_tokens;
+ struct lttng_key_token key_tokens[LTTNG_KERNEL_NR_KEY_TOKEN];
+};
+
+#define LTTNG_COUNTER_DIMENSION_MAX LTTNG_KERNEL_COUNTER_DIMENSION_MAX
+struct lttng_counter_key {
+ size_t nr_dimensions;
+ struct lttng_counter_key_dimension key_dimensions[LTTNG_COUNTER_DIMENSION_MAX];
+};
+
+#define LTTNG_KEY_TOKEN_STRING_LEN_MAX LTTNG_KERNEL_KEY_TOKEN_STRING_LEN_MAX
+
/*
* lttng_event structure is referred to by the tracing fast path. It must be
* kept small.
*/
struct lttng_event {
enum lttng_event_type evtype; /* First field. */
- unsigned int id;
- struct lttng_channel *chan;
+ struct lttng_event_container *container;
+ size_t id;
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 lttng_kprobe kprobe;
struct {
struct lttng_krp *lttng_krp;
char *symbol_name;
+ uint64_t user_token;
} kretprobe;
+ struct lttng_uprobe uprobe;
struct {
- struct inode *inode;
- struct list_head head;
- } uprobe;
- struct {
- char *syscall_name;
enum lttng_syscall_entryexit entryexit;
enum lttng_syscall_abi abi;
+ struct hlist_node node; /* chain registered syscall event */
} syscall;
} u;
struct list_head list; /* Event list in session */
/* Backward references: list of lttng_enabler_ref (ref to enablers) */
struct list_head enablers_ref_head;
- struct hlist_node hlist; /* session ht of events */
+ struct hlist_node name_hlist; /* session ht of events, per event name */
+ struct hlist_node key_hlist; /* session ht of events, per key */
int registered; /* has reg'd tracepoint probe */
/* list of struct lttng_bytecode_runtime, sorted by seqnum */
- struct list_head bytecode_runtime_head;
+ struct list_head filter_bytecode_runtime_head;
int has_enablers_without_bytecode;
+
+ /* List node of actions to perform (for syscall events). */
+ struct hlist_node action_list;
+
+ char key[LTTNG_KEY_TOKEN_STRING_LEN_MAX];
+
+ /*
+ * For non-coalesce-hit event containers, each event is
+ * associated with a single event enabler user_token.
+ */
+ uint64_t user_token;
+};
+
+struct lttng_kernel_notifier_ctx {
+ int eval_capture;
};
// FIXME: Really similar to lttng_event above. Could those be merged ?
struct lttng_event_notifier {
enum lttng_event_type evtype; /* First field. */
uint64_t user_token;
+ uint64_t error_counter_index;
int enabled;
int registered; /* has reg'd tracepoint probe */
const struct lttng_event_desc *desc;
enum lttng_kernel_instrumentation instrumentation;
union {
+ struct lttng_kprobe kprobe;
+ struct lttng_uprobe uprobe;
+ struct {
+ enum lttng_syscall_entryexit entryexit;
+ enum lttng_syscall_abi abi;
+ struct hlist_node node; /* chain registered syscall event_notifier */
+ unsigned int syscall_id;
+ } syscall;
+
} u;
/* Backward references: list of lttng_enabler_ref (ref to enablers) */
struct list_head enablers_ref_head;
struct hlist_node hlist; /* session ht of event_notifiers */
/* list of struct lttng_bytecode_runtime, sorted by seqnum */
- struct list_head bytecode_runtime_head;
+ struct list_head filter_bytecode_runtime_head;
+ size_t num_captures;
+ struct list_head capture_bytecode_runtime_head;
int has_enablers_without_bytecode;
+ int eval_capture; /* Should evaluate capture */
- void (*send_notification)(struct lttng_event_notifier *event_notifier);
+ void (*send_notification)(struct lttng_event_notifier *event_notifier,
+ struct lttng_probe_ctx *lttng_probe_ctx,
+ const char *interpreter_stack_data,
+ struct lttng_kernel_notifier_ctx *notif_ctx);
struct lttng_event_notifier_group *group; /* Weak ref */
};
enum lttng_enabler_format_type format_type;
- /* head list of struct lttng_ust_filter_bytecode_node */
+ /* head list of struct lttng_bytecode_node */
struct list_head filter_bytecode_head;
struct lttng_kernel_event event_param;
struct lttng_event_enabler {
struct lttng_enabler base;
struct list_head node; /* per-session list of enablers */
- struct lttng_channel *chan;
+ struct lttng_event_container *container;
+ struct lttng_counter_key key;
/*
* Unused, but kept around to make it explicit that the tracer can do
* it.
struct lttng_event_notifier_enabler {
struct lttng_enabler base;
+ uint64_t error_counter_index;
struct list_head node; /* List of event_notifier enablers */
struct lttng_event_notifier_group *group;
+
+ /* head list of struct lttng_bytecode_node */
+ struct list_head capture_bytecode_head;
+ uint64_t num_captures;
};
+
static inline
struct lttng_enabler *lttng_event_enabler_as_enabler(
struct lttng_event_enabler *event_enabler)
uint64_t *id);
};
+struct lttng_counter_ops {
+ struct lib_counter *(*counter_create)(size_t nr_dimensions,
+ const size_t *max_nr_elem, /* for each dimension */
+ int64_t global_sum_step);
+ void (*counter_destroy)(struct lib_counter *counter);
+ int (*counter_add)(struct lib_counter *counter, const size_t *dimension_indexes,
+ int64_t v);
+ /*
+ * counter_read reads a specific cpu's counter if @cpu >= 0, or
+ * the global aggregation counter if @cpu == -1.
+ */
+ int (*counter_read)(struct lib_counter *counter, const size_t *dimension_indexes, int cpu,
+ int64_t *value, bool *overflow, bool *underflow);
+ /*
+ * counter_aggregate returns the total sum of all per-cpu counters and
+ * the global aggregation counter.
+ */
+ int (*counter_aggregate)(struct lib_counter *counter, const size_t *dimension_indexes,
+ int64_t *value, bool *overflow, bool *underflow);
+ int (*counter_clear)(struct lib_counter *counter, const size_t *dimension_indexes);
+};
+
struct lttng_transport {
char *name;
struct module *owner;
struct lttng_channel_ops ops;
};
+struct lttng_counter_transport {
+ char *name;
+ struct module *owner;
+ struct list_head node;
+ struct lttng_counter_ops ops;
+};
+
struct lttng_syscall_filter;
#define LTTNG_EVENT_HT_BITS 12
struct hlist_head table[LTTNG_EVENT_NOTIFIER_HT_SIZE];
};
+enum lttng_event_container_type {
+ LTTNG_EVENT_CONTAINER_CHANNEL,
+ LTTNG_EVENT_CONTAINER_COUNTER,
+};
+
+/*
+ * An event can be contained within either a channel or a counter.
+ */
+struct lttng_event_container {
+ enum lttng_event_container_type type;
+
+ struct file *file; /* File associated to event container */
+ struct lttng_session *session; /* Session containing the container */
+ int enabled;
+ struct hlist_head *sc_table; /* for syscall tracing */
+ struct hlist_head *compat_sc_table;
+ struct hlist_head *sc_exit_table; /* for syscall exit tracing */
+ struct hlist_head *compat_sc_exit_table;
+
+ /*
+ * Combining all unknown syscall events works as long as they
+ * are only matched by "all" syscalls enablers, but will require
+ * a design change when we allow matching by syscall number, for
+ * instance by allocating sc_tables accomodating NR_syscalls
+ * entries.
+ */
+ struct hlist_head sc_unknown; /* for unknown syscalls */
+ struct hlist_head sc_compat_unknown;
+ struct hlist_head sc_exit_unknown;
+ struct hlist_head compat_sc_exit_unknown;
+
+ struct lttng_syscall_filter *sc_filter;
+ int syscall_all_entry;
+ int syscall_all_exit;
+ unsigned int sys_enter_registered:1,
+ sys_exit_registered:1,
+ tstate:1; /* Transient enable state */
+ bool coalesce_hits;
+};
+
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_exit_table; /* for syscall exit tracing */
- struct lttng_event **compat_sc_exit_table;
- struct lttng_event *sc_unknown; /* for unknown syscalls */
- struct lttng_event *sc_compat_unknown;
- struct lttng_event *sc_exit_unknown;
- struct lttng_event *compat_sc_exit_unknown;
- struct lttng_syscall_filter *sc_filter;
int header_type; /* 0: unset, 1: compact, 2: large */
enum channel_type channel_type;
- int syscall_all;
- unsigned int metadata_dumped:1,
- sys_enter_registered:1,
- sys_exit_registered:1,
- tstate:1; /* Transient enable state */
+ unsigned int metadata_dumped:1;
+
+ struct lttng_event_container parent;
};
struct lttng_metadata_stream {
struct file *file; /* File associated to session */
struct list_head chan; /* Channel list head */
struct list_head events; /* Event list head */
+ struct list_head counters; /* Counters 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 */
tstate:1; /* Transient enable state */
/* List of event enablers */
struct list_head enablers_head;
- /* Hash table of events */
- struct lttng_event_ht events_ht;
+ /* Hash table of events indexed by event name */
+ struct lttng_event_ht events_name_ht;
+ /* Hash table of events indexed by key */
+ struct lttng_event_ht events_key_ht;
char name[LTTNG_KERNEL_SESSION_NAME_LEN];
char creation_time[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
};
+struct lttng_counter_map_descriptor {
+ uint64_t user_token;
+ size_t array_index;
+ char key[LTTNG_KERNEL_COUNTER_KEY_LEN];
+};
+
+struct lttng_counter_map {
+ struct lttng_counter_map_descriptor *descriptors;
+ size_t nr_descriptors;
+ size_t alloc_len;
+ struct mutex lock; /* counter map lock */
+};
+
+struct lttng_counter {
+ struct file *owner;
+ struct lttng_counter_transport *transport;
+ struct lib_counter *counter;
+ struct lttng_counter_ops *ops;
+ struct list_head node; /* Counter list (in session) */
+
+ size_t free_index; /* Next index to allocate */
+ struct lttng_counter_map map;
+
+ struct lttng_event_container parent;
+};
+
struct lttng_event_notifier_group {
struct file *file; /* File associated to event notifier group */
struct file *notif_file; /* File used to expose notifications to userspace. */
struct lib_ring_buffer *buf; /* Ring buffer for event notifier group. */
wait_queue_head_t read_wait;
struct irq_work wakeup_pending; /* Pending wakeup irq work. */
+ struct lttng_event_notifier *sc_unknown; /* for unknown syscalls */
+ struct lttng_event_notifier *sc_compat_unknown;
+
+ struct lttng_syscall_filter *sc_filter;
+
+ struct hlist_head *event_notifier_syscall_dispatch;
+ struct hlist_head *event_notifier_compat_syscall_dispatch;
+ struct hlist_head *event_notifier_exit_syscall_dispatch;
+ struct hlist_head *event_notifier_exit_compat_syscall_dispatch;
+
+ struct hlist_head event_notifier_unknown_syscall_dispatch;
+ struct hlist_head event_notifier_compat_unknown_syscall_dispatch;
+ struct hlist_head event_notifier_exit_unknown_syscall_dispatch;
+ struct hlist_head event_notifier_exit_compat_unknown_syscall_dispatch;
+
+ int syscall_all_entry;
+ int syscall_all_exit;
+
+ unsigned int sys_enter_registered:1, sys_exit_registered:1;
+
+ struct lttng_counter *error_counter;
+ size_t error_counter_len;
};
struct lttng_metadata_cache {
uint64_t version; /* Current version of the metadata */
};
+static inline
+struct lttng_event_container *lttng_channel_get_event_container(struct lttng_channel *channel)
+{
+ return &channel->parent;
+}
+
+static inline
+struct lttng_event_container *lttng_counter_get_event_container(struct lttng_counter *counter)
+{
+ return &counter->parent;
+}
+
+static inline
+struct lttng_channel *lttng_event_container_get_channel(struct lttng_event_container *container)
+{
+ if (container->type != LTTNG_EVENT_CONTAINER_CHANNEL)
+ return NULL;
+ return container_of(container, struct lttng_channel, parent);
+}
+
+static inline
+struct lttng_counter *lttng_event_container_get_counter(struct lttng_event_container *container)
+{
+ if (container->type != LTTNG_EVENT_CONTAINER_COUNTER)
+ return NULL;
+ return container_of(container, struct lttng_counter, parent);
+}
+
void lttng_lock_sessions(void);
void lttng_unlock_sessions(void);
struct lttng_event_enabler *lttng_event_enabler_create(
enum lttng_enabler_format_type format_type,
struct lttng_kernel_event *event_param,
- struct lttng_channel *chan);
+ const struct lttng_counter_key *key,
+ struct lttng_event_container *container);
int lttng_event_enabler_enable(struct lttng_event_enabler *event_enabler);
int lttng_event_enabler_disable(struct lttng_event_enabler *event_enabler);
int lttng_session_statedump(struct lttng_session *session);
void metadata_cache_destroy(struct kref *kref);
+int lttng_kernel_counter_read(struct lttng_counter *counter,
+ const size_t *dimension_indexes, int32_t cpu,
+ int64_t *val, bool *overflow, bool *underflow);
+int lttng_kernel_counter_aggregate(struct lttng_counter *counter,
+ const size_t *dimension_indexes, int64_t *val,
+ bool *overflow, bool *underflow);
+int lttng_kernel_counter_clear(struct lttng_counter *counter,
+ const size_t *dimension_indexes);
+
+
struct lttng_event_notifier_group *lttng_event_notifier_group_create(void);
+int lttng_event_notifier_group_create_error_counter(
+ struct file *event_notifier_group_file,
+ const struct lttng_kernel_counter_conf *error_counter_conf);
+
void lttng_event_notifier_group_destroy(
struct lttng_event_notifier_group *event_notifier_group);
+int lttng_event_notifier_group_set_error_counter(
+ struct lttng_event_notifier_group *event_notifier_group,
+ const char *counter_transport_name,
+ size_t counter_len);
struct lttng_channel *lttng_channel_create(struct lttng_session *session,
const char *transport_name,
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_event *lttng_event_create(struct lttng_event_container *container,
struct lttng_kernel_event *event_param,
+ const struct lttng_counter_key *key,
void *filter,
const struct lttng_event_desc *event_desc,
- enum lttng_kernel_instrumentation itype);
-struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
+ enum lttng_kernel_instrumentation itype,
+ uint64_t user_token);
+struct lttng_event *_lttng_event_create(struct lttng_event_container *container,
struct lttng_kernel_event *event_param,
+ const struct lttng_counter_key *key,
void *filter,
const struct lttng_event_desc *event_desc,
- enum lttng_kernel_instrumentation itype);
-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);
+ enum lttng_kernel_instrumentation itype,
+ uint64_t user_token);
+struct lttng_counter *lttng_session_create_counter(
+ struct lttng_session *session,
+ const char *counter_transport_name,
+ size_t number_dimensions, const size_t *dimensions_sizes,
+ bool coalesce_hits);
struct lttng_event_notifier *lttng_event_notifier_create(
const struct lttng_event_desc *event_notifier_desc,
uint64_t id,
+ uint64_t error_counter_idx,
struct lttng_event_notifier_group *event_notifier_group,
struct lttng_kernel_event_notifier *event_notifier_param,
void *filter,
struct lttng_event_notifier *_lttng_event_notifier_create(
const struct lttng_event_desc *event_notifier_desc,
uint64_t id,
+ uint64_t error_counter_idx,
struct lttng_event_notifier_group *event_notifier_group,
struct lttng_kernel_event_notifier *event_notifier_param,
void *filter,
enum lttng_kernel_instrumentation itype);
-int lttng_channel_enable(struct lttng_channel *channel);
-int lttng_channel_disable(struct lttng_channel *channel);
+int lttng_event_container_enable(struct lttng_event_container *container);
+int lttng_event_container_disable(struct lttng_event_container *container);
int lttng_event_enable(struct lttng_event *event);
int lttng_event_disable(struct lttng_event *event);
+int lttng_event_notifier_enable(struct lttng_event_notifier *event_notifier);
+int lttng_event_notifier_disable(struct lttng_event_notifier *event_notifier);
+
void lttng_transport_register(struct lttng_transport *transport);
void lttng_transport_unregister(struct lttng_transport *transport);
+void lttng_counter_transport_register(struct lttng_counter_transport *transport);
+void lttng_counter_transport_unregister(struct lttng_counter_transport *transport);
+
void synchronize_trace(void);
int lttng_abi_init(void);
int lttng_abi_compat_old_init(void);
void lttng_clock_ref(void);
void lttng_clock_unref(void);
+int lttng_desc_match_enabler(const struct lttng_event_desc *desc,
+ struct lttng_enabler *enabler);
+
#if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
-int lttng_syscalls_register(struct lttng_channel *chan, void *filter);
-int lttng_syscalls_unregister(struct lttng_channel *chan);
-int lttng_syscalls_destroy(struct lttng_channel *chan);
-int lttng_syscall_filter_enable(struct lttng_channel *chan,
+int lttng_syscalls_register_event(struct lttng_event_enabler *event_enabler, void *filter);
+int lttng_syscalls_unregister_event_container(struct lttng_event_container *event_container);
+int lttng_syscalls_destroy_event_container(struct lttng_event_container *container);
+int lttng_syscall_filter_enable_event(struct lttng_event_container *container,
struct lttng_event *event);
-int lttng_syscall_filter_disable(struct lttng_channel *chan,
+int lttng_syscall_filter_disable_event(struct lttng_event_container *container,
struct lttng_event *event);
-long lttng_channel_syscall_mask(struct lttng_channel *channel,
+long lttng_event_container_syscall_mask(struct lttng_event_container *container,
struct lttng_kernel_syscall_mask __user *usyscall_mask);
+
+int lttng_syscalls_register_event_notifier(
+ struct lttng_event_notifier_enabler *event_notifier_enabler,
+ void *filter);
+int lttng_syscals_create_matching_event_notifiers(
+ struct lttng_event_notifier_enabler *event_notifier_enabler, void *filter);
+int lttng_syscalls_unregister_event_notifier_group(struct lttng_event_notifier_group *group);
+int lttng_syscall_filter_enable_event_notifier(struct lttng_event_notifier *event_notifier);
+int lttng_syscall_filter_disable_event_notifier(struct lttng_event_notifier *event_notifier);
#else
-static inline int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
+static inline int lttng_syscalls_register_event(
+ struct lttng_event_enabler *event_enabler, void *filter)
{
return -ENOSYS;
}
-static inline int lttng_syscalls_unregister(struct lttng_channel *chan)
+static inline int lttng_syscalls_unregister_event_container(struct lttng_event_container *event_container)
{
return 0;
}
-static inline int lttng_syscalls_destroy(struct lttng_channel *chan)
+static inline int lttng_syscalls_destroy_event_container(struct lttng_event_container *event_container)
{
return 0;
}
-static inline int lttng_syscall_filter_enable(struct lttng_channel *chan,
+static inline int lttng_syscall_filter_enable_event(struct lttng_event_container *event_container,
struct lttng_event *event);
{
return -ENOSYS;
}
-static inline int lttng_syscall_filter_disable(struct lttng_channel *chan,
+static inline int lttng_syscall_filter_disable_event(struct lttng_event_container *event_container,
struct lttng_event *event);
{
return -ENOSYS;
}
-static inline long lttng_channel_syscall_mask(struct lttng_channel *channel,
+static inline long lttng_channel_syscall_mask(struct lttng_event_container *event_container,
struct lttng_kernel_syscall_mask __user *usyscall_mask)
{
return -ENOSYS;
}
+static inline int lttng_syscalls_register_event_notifier(
+ struct lttng_event_notifier_group *group, void *filter)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscalls_unregister_event_notifier_group(
+ struct lttng_event_notifier_group *group)
+{
+ return 0;
+}
+
+static inline int lttng_syscall_filter_enable_event_notifier(
+ struct lttng_event_notifier_group *group,
+ const char *name)
+{
+ return -ENOSYS;
+}
+
+static inline int lttng_syscall_filter_disable_event_notifier(
+ struct lttng_event_notifier_group *group,
+ const char *name)
+{
+ return -ENOSYS;
+}
+
#endif
-void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime);
-int lttng_event_enabler_attach_bytecode(struct lttng_event_enabler *event_enabler,
+int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler *event_enabler,
struct lttng_kernel_filter_bytecode __user *bytecode);
-int lttng_event_notifier_enabler_attach_bytecode(
+int lttng_event_notifier_enabler_attach_filter_bytecode(
struct lttng_event_notifier_enabler *event_notifier_enabler,
struct lttng_kernel_filter_bytecode __user *bytecode);
+int lttng_event_notifier_enabler_attach_capture_bytecode(
+ struct lttng_event_notifier_enabler *event_notifier_enabler,
+ struct lttng_kernel_capture_bytecode __user *bytecode);
void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
struct lttng_ctx *ctx,
- struct list_head *bytecode_runtime_head,
- struct lttng_enabler *enabler);
+ struct list_head *instance_bytecode_runtime_head,
+ struct list_head *enabler_bytecode_runtime_head);
+void lttng_free_event_filter_runtime(struct lttng_event *event);
+void lttng_free_event_notifier_filter_runtime(struct lttng_event_notifier *event_notifier);
int lttng_probes_init(void);
int lttng_add_callstack_to_ctx(struct lttng_ctx **ctx, int type);
#if defined(CONFIG_CGROUPS) && \
- ((LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) || \
+ ((LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) || \
LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0))
int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx);
#else
#endif
#if defined(CONFIG_IPC_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
#endif
#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
#endif
#if defined(CONFIG_NET_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
#endif
#if defined(CONFIG_PID_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
#endif
#if defined(CONFIG_USER_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
#endif
#if defined(CONFIG_UTS_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
#endif
#if defined(CONFIG_TIME_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+ (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0))
int lttng_add_time_ns_to_ctx(struct lttng_ctx **ctx);
#else
static inline
extern int lttng_statedump_start(struct lttng_session *session);
#ifdef CONFIG_KPROBES
-int lttng_kprobes_register(const char *name,
+int lttng_kprobes_register_event(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);
+void lttng_kprobes_unregister_event(struct lttng_event *event);
+void lttng_kprobes_destroy_event_private(struct lttng_event *event);
+int lttng_kprobes_register_event_notifier(const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct lttng_event_notifier *event_notifier);
+void lttng_kprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier);
+void lttng_kprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier);
#else
static inline
-int lttng_kprobes_register(const char *name,
+int lttng_kprobes_register_event(const char *name,
const char *symbol_name,
uint64_t offset,
uint64_t addr,
}
static inline
-void lttng_kprobes_unregister(struct lttng_event *event)
+void lttng_kprobes_unregister_event(struct lttng_event *event)
+{
+}
+
+static inline
+void lttng_kprobes_destroy_event_private(struct lttng_event *event)
+{
+}
+
+static inline
+int lttng_kprobes_register_event_notifier(const char *symbol_name,
+ uint64_t offset,
+ uint64_t addr,
+ struct lttng_event_notifier *event_notifier)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_kprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier)
{
}
static inline
-void lttng_kprobes_destroy_private(struct lttng_event *event)
+void lttng_kprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier)
{
}
#endif
int lttng_event_add_callsite(struct lttng_event *event,
struct lttng_kernel_event_callsite *callsite);
+int lttng_event_notifier_add_callsite(struct lttng_event_notifier *event_notifier,
+ struct lttng_kernel_event_callsite *callsite);
+
#ifdef CONFIG_UPROBES
-int lttng_uprobes_register(const char *name,
+int lttng_uprobes_register_event(const char *name,
int fd, struct lttng_event *event);
-int lttng_uprobes_add_callsite(struct lttng_event *event,
+int lttng_uprobes_event_add_callsite(struct lttng_event *event,
struct lttng_kernel_event_callsite *callsite);
-void lttng_uprobes_unregister(struct lttng_event *event);
-void lttng_uprobes_destroy_private(struct lttng_event *event);
+void lttng_uprobes_unregister_event(struct lttng_event *event);
+void lttng_uprobes_destroy_event_private(struct lttng_event *event);
+int lttng_uprobes_register_event_notifier(const char *name,
+ int fd, struct lttng_event_notifier *event_notifier);
+int lttng_uprobes_event_notifier_add_callsite(struct lttng_event_notifier *event_notifier,
+ struct lttng_kernel_event_callsite *callsite);
+void lttng_uprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier);
+void lttng_uprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier);
#else
static inline
-int lttng_uprobes_register(const char *name,
+int lttng_uprobes_register_event(const char *name,
int fd, struct lttng_event *event)
{
return -ENOSYS;
}
static inline
-int lttng_uprobes_add_callsite(struct lttng_event *event,
+int lttng_uprobes_event_add_callsite(struct lttng_event *event,
+ struct lttng_kernel_event_callsite *callsite)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_uprobes_unregister_event(struct lttng_event *event)
+{
+}
+
+static inline
+void lttng_uprobes_destroy_event_private(struct lttng_event *event)
+{
+}
+
+static inline
+int lttng_uprobes_register_event_notifier(const char *name,
+ int fd, struct lttng_event_notifier *event_notifier)
+{
+ return -ENOSYS;
+}
+
+static inline
+int lttng_uprobes_event_notifier_add_callsite(struct lttng_event_notifier *event_notifier,
struct lttng_kernel_event_callsite *callsite)
{
return -ENOSYS;
}
static inline
-void lttng_uprobes_unregister(struct lttng_event *event)
+void lttng_uprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier)
{
}
static inline
-void lttng_uprobes_destroy_private(struct lttng_event *event)
+void lttng_uprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier)
{
}
#endif