#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>
#include <lttng/abi-old.h>
#include <lttng/endian.h>
-#define lttng_is_signed_type(type) (((type)(-1)) < 0)
+#define lttng_is_signed_type(type) (((type) -1) < (type) 1)
struct lttng_channel;
struct lttng_session;
/* Type description */
-enum abstract_types {
- atype_integer,
- atype_string,
- atype_enum_nestable,
- atype_array_nestable,
- atype_sequence_nestable,
- atype_struct_nestable,
- atype_variant_nestable,
- NR_ABSTRACT_TYPES,
+enum lttng_kernel_type {
+ lttng_kernel_type_integer,
+ lttng_kernel_type_string,
+ lttng_kernel_type_enum,
+ lttng_kernel_type_array,
+ lttng_kernel_type_sequence,
+ lttng_kernel_type_struct,
+ lttng_kernel_type_variant,
+ NR_LTTNG_KERNEL_TYPES,
};
-enum lttng_string_encodings {
- lttng_encode_none = 0,
- lttng_encode_UTF8 = 1,
- lttng_encode_ASCII = 2,
- NR_STRING_ENCODINGS,
+enum lttng_kernel_string_encoding {
+ lttng_kernel_string_encoding_none = 0,
+ lttng_kernel_string_encoding_UTF8 = 1,
+ lttng_kernel_string_encoding_ASCII = 2,
+ NR_LTTNG_KERNEL_STRING_ENCODING,
};
enum channel_type {
METADATA_CHANNEL,
};
-struct lttng_enum_value {
+struct lttng_kernel_enum_value {
unsigned long long value;
unsigned int signedness:1;
};
-struct lttng_enum_entry {
- struct lttng_enum_value start, end; /* start and end are inclusive */
+struct lttng_kernel_enum_entry {
+ struct lttng_kernel_enum_value start, end; /* start and end are inclusive */
const char *string;
struct {
unsigned int is_auto:1;
} options;
};
-#define __type_integer(_type, _size, _alignment, _signedness, \
- _byte_order, _base, _encoding) \
- { \
- .atype = atype_integer, \
- .u.integer = \
- { \
- .size = (_size) ? : sizeof(_type) * CHAR_BIT, \
- .alignment = (_alignment) ? : lttng_alignof(_type) * CHAR_BIT, \
- .signedness = (_signedness) >= 0 ? (_signedness) : lttng_is_signed_type(_type), \
- .reverse_byte_order = _byte_order != __BYTE_ORDER, \
- .base = _base, \
- .encoding = lttng_encode_##_encoding, \
- }, \
- } \
-
-struct lttng_integer_type {
+/*
+ * struct lttng_kernel_type_common is fixed-size. Its children inherits
+ * from it by embedding struct lttng_kernel_type_common as its first field.
+ */
+struct lttng_kernel_type_common {
+ enum lttng_kernel_type type;
+};
+
+struct lttng_kernel_type_integer {
+ struct lttng_kernel_type_common parent;
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;
};
-struct lttng_type {
- enum abstract_types atype;
- union {
- struct lttng_integer_type integer;
- struct {
- enum lttng_string_encodings encoding;
- } string;
- struct {
- const struct lttng_enum_desc *desc; /* Enumeration mapping */
- const struct lttng_type *container_type;
- } enum_nestable;
- struct {
- const struct lttng_type *elem_type;
- unsigned int length; /* Num. elems. */
- unsigned int alignment;
- } array_nestable;
- struct {
- const char *length_name; /* Length field name. */
- const struct lttng_type *elem_type;
- unsigned int alignment; /* Alignment before elements. */
- } sequence_nestable;
- struct {
- unsigned int nr_fields;
- const struct lttng_event_field *fields; /* Array of fields. */
- unsigned int alignment;
- } struct_nestable;
- struct {
- const char *tag_name;
- const struct lttng_event_field *choices; /* Array of fields. */
- unsigned int nr_choices;
- unsigned int alignment;
- } variant_nestable;
- } u;
+struct lttng_kernel_type_string {
+ struct lttng_kernel_type_common parent;
+ enum lttng_kernel_string_encoding encoding;
};
-struct lttng_enum_desc {
- const char *name;
- const struct lttng_enum_entry *entries;
- unsigned int nr_entries;
+struct lttng_kernel_type_enum {
+ struct lttng_kernel_type_common parent;
+ const struct lttng_kernel_enum_desc *desc; /* Enumeration mapping */
+ const struct lttng_kernel_type_common *container_type;
};
-/* Event field description */
+struct lttng_kernel_type_array {
+ struct lttng_kernel_type_common parent;
+ const struct lttng_kernel_type_common *elem_type;
+ unsigned int length; /* Num. elems. */
+ unsigned int alignment;
+ enum lttng_kernel_string_encoding encoding;
+};
-struct lttng_event_field {
- const char *name;
- struct lttng_type type;
- unsigned int nowrite:1, /* do not write into trace */
- user:1, /* fetch from user-space */
- nofilter:1; /* do not consider for filter */
+struct lttng_kernel_type_sequence {
+ struct lttng_kernel_type_common parent;
+ const char *length_name; /* Length field name. If NULL, use previous field. */
+ const struct lttng_kernel_type_common *elem_type;
+ unsigned int alignment; /* Alignment before elements. */
+ enum lttng_kernel_string_encoding encoding;
};
-union lttng_ctx_value {
- int64_t s64;
- const char *str;
- double d;
+struct lttng_kernel_type_struct {
+ struct lttng_kernel_type_common parent;
+ unsigned int nr_fields;
+ const struct lttng_kernel_event_field **fields; /* Array of pointers to fields. */
+ unsigned int alignment;
};
-/*
- * 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 {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
- struct lttng_cpuhp_node cpuhp_prepare;
- struct lttng_cpuhp_node cpuhp_online;
-#else
- struct notifier_block nb;
- int hp_enable;
-#endif
- struct perf_event_attr *attr;
- struct perf_event **e; /* per-cpu array */
+struct lttng_kernel_type_variant {
+ struct lttng_kernel_type_common parent;
+ const char *tag_name; /* Tag field name. If NULL, use previous field. */
+ const struct lttng_kernel_event_field **choices; /* Array of pointers to fields. */
+ unsigned int nr_choices;
+ unsigned int alignment;
};
-struct lttng_probe_ctx {
- struct lttng_event *event;
- struct lttng_event_notifier *event_notifier; // Not sure if we will ever need it.
- uint8_t interruptible;
+struct lttng_kernel_enum_desc {
+ const char *name;
+ const struct lttng_kernel_enum_entry **entries;
+ unsigned int nr_entries;
};
-struct lttng_ctx_field {
- struct lttng_event_field event_field;
- size_t (*get_size)(size_t offset);
- size_t (*get_size_arg)(size_t offset, struct lttng_ctx_field *field,
- struct lib_ring_buffer_ctx *ctx,
- struct lttng_channel *chan);
- void (*record)(struct lttng_ctx_field *field,
- struct lib_ring_buffer_ctx *ctx,
- struct lttng_channel *chan);
- void (*get_value)(struct lttng_ctx_field *field,
- struct lttng_probe_ctx *lttng_probe_ctx,
- union lttng_ctx_value *value);
- union {
- struct lttng_perf_counter_field *perf_counter;
- } u;
- void (*destroy)(struct lttng_ctx_field *field);
- /*
- * Private data to keep state between get_size and record.
- * User must perform its own synchronization to protect against
- * concurrent and reentrant contexts.
- */
- void *priv;
+/* Event field description */
+
+struct lttng_kernel_event_field {
+ const char *name;
+ const struct lttng_kernel_type_common *type;
+ unsigned int nowrite:1, /* do not write into trace */
+ user:1, /* fetch from user-space */
+ nofilter:1; /* do not consider for filter */
};
-struct lttng_ctx {
- struct lttng_ctx_field *fields;
- unsigned int nr_fields;
- unsigned int allocated_fields;
- size_t largest_align; /* in bytes */
+#define lttng_kernel_static_type_integer(_size, _alignment, _signedness, _byte_order, _base) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_integer, { \
+ .parent = { \
+ .type = lttng_kernel_type_integer, \
+ }, \
+ .size = (_size), \
+ .alignment = (_alignment), \
+ .signedness = (_signedness), \
+ .reverse_byte_order = (_byte_order) != __BYTE_ORDER, \
+ .base = (_base), \
+ }))
+
+#define lttng_kernel_static_type_integer_from_type(_type, _byte_order, _base) \
+ lttng_kernel_static_type_integer(sizeof(_type) * CHAR_BIT, \
+ lttng_alignof(_type) * CHAR_BIT, \
+ lttng_is_signed_type(_type), \
+ _byte_order, \
+ _base)
+
+#define lttng_kernel_static_type_enum(_desc, _container_type) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_enum, { \
+ .parent = { \
+ .type = lttng_kernel_type_enum, \
+ }, \
+ .desc = (_desc), \
+ .container_type = (_container_type), \
+ }))
+
+#define lttng_kernel_static_type_array(_length, _elem_type, _alignment, _encoding) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_array, { \
+ .parent = { \
+ .type = lttng_kernel_type_array, \
+ }, \
+ .length = (_length), \
+ .alignment = (_alignment), \
+ .encoding = lttng_kernel_string_encoding_##_encoding, \
+ .elem_type = (_elem_type), \
+ }))
+
+#define lttng_kernel_static_type_array_text(_length) \
+ lttng_kernel_static_type_array(_length, \
+ lttng_kernel_static_type_integer(sizeof(char) * CHAR_BIT, \
+ lttng_alignof(char) * CHAR_BIT, lttng_is_signed_type(char), \
+ __BYTE_ORDER, 10), \
+ 0, UTF8)
+
+#define lttng_kernel_static_type_sequence(_length_name, _elem_type, _alignment, _encoding) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_sequence, { \
+ .parent = { \
+ .type = lttng_kernel_type_sequence, \
+ }, \
+ .length_name = (_length_name), \
+ .alignment = (_alignment), \
+ .encoding = lttng_kernel_string_encoding_##_encoding, \
+ .elem_type = (_elem_type), \
+ }))
+
+#define lttng_kernel_static_type_string(_encoding) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_string, { \
+ .parent = { \
+ .type = lttng_kernel_type_string, \
+ }, \
+ .encoding = lttng_kernel_string_encoding_##_encoding, \
+ }))
+
+#define lttng_kernel_static_type_struct(_nr_fields, _fields, _alignment) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_struct, { \
+ .parent = { \
+ .type = lttng_kernel_type_struct, \
+ }, \
+ .nr_fields = (_nr_fields), \
+ .fields = _fields, \
+ .alignment = (_alignment), \
+ }))
+
+#define lttng_kernel_static_type_variant(_nr_choices, _choices, _tag_name, _alignment) \
+ ((const struct lttng_kernel_type_common *) __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_type_variant, { \
+ .parent = { \
+ .type = lttng_kernel_type_variant, \
+ }, \
+ .tag_name = (_tag_name), \
+ .choices = _choices, \
+ .nr_choices = (_nr_choices), \
+ .alignment = (_alignment), \
+ }))
+
+#define lttng_kernel_static_event_field(_name, _type, _nowrite, _user, _nofilter) \
+ __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_event_field, { \
+ .name = (_name), \
+ .type = (_type), \
+ .nowrite = (_nowrite), \
+ .user = (_user), \
+ .nofilter = (_nofilter), \
+ })
+
+#define lttng_kernel_static_event_field_array(_fields...) \
+ __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_event_field *, \
+ _fields \
+ )
+
+#define lttng_kernel_static_enum_entry_value(_string, _value) \
+ __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_enum_entry, { \
+ .start = { \
+ .signedness = lttng_is_signed_type(__typeof__(_value)), \
+ .value = lttng_is_signed_type(__typeof__(_value)) ? \
+ (long long) (_value) : (_value), \
+ }, \
+ .end = { \
+ .signedness = lttng_is_signed_type(__typeof__(_value)), \
+ .value = lttng_is_signed_type(__typeof__(_value)) ? \
+ (long long) (_value) : (_value), \
+ }, \
+ .string = (_string), \
+ }),
+
+#define lttng_kernel_static_enum_entry_range(_string, _range_start, _range_end) \
+ __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_enum_entry, { \
+ .start = { \
+ .signedness = lttng_is_signed_type(__typeof__(_range_start)), \
+ .value = lttng_is_signed_type(__typeof__(_range_start)) ? \
+ (long long) (_range_start) : (_range_start), \
+ }, \
+ .end = { \
+ .signedness = lttng_is_signed_type(__typeof__(_range_end)), \
+ .value = lttng_is_signed_type(__typeof__(_range_end)) ? \
+ (long long) (_range_end) : (_range_end), \
+ }, \
+ .string = (_string), \
+ }),
+
+#define lttng_kernel_static_enum_entry_auto(_string) \
+ __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_enum_entry, { \
+ .start = { \
+ .signedness = -1, \
+ .value = -1, \
+ }, \
+ .end = { \
+ .signedness = -1, \
+ .value = -1, \
+ }, \
+ .string = (_string), \
+ .options = { \
+ .is_auto = 1, \
+ } \
+ }),
+
+struct lttng_kernel_probe_ctx {
+ struct lttng_kernel_event_common *event;
+ uint8_t interruptible;
};
-struct lttng_event_desc {
- const char *name; /* lttng-modules name */
- const char *kname; /* Linux kernel name (tracepoints) */
- void *probe_callback;
- const struct lttng_event_ctx *ctx; /* context */
- const struct lttng_event_field *fields; /* event payload */
+struct lttng_kernel_event_desc {
+ const char *event_name; /* lttng-modules name */
+ const char *event_kname; /* Linux kernel name (tracepoints) */
+ const struct lttng_kernel_probe_desc *probe_desc;
+ void (*probe_callback)(void);
+ const struct lttng_kernel_event_field **fields; /* event payload */
unsigned int nr_fields;
struct module *owner;
- void *event_notifier_callback;
};
-struct lttng_probe_desc {
- const char *provider;
- const struct lttng_event_desc **event_desc;
+struct lttng_kernel_probe_desc {
+ const char *provider_name;
+ const struct lttng_kernel_event_desc **event_desc;
unsigned int nr_events;
struct list_head head; /* chain registered probes */
struct list_head lazy_init_head;
struct lttng_krp; /* Kretprobe handling */
-enum lttng_event_type {
- LTTNG_TYPE_EVENT = 0,
- LTTNG_TYPE_ENABLER = 1,
-};
-
-struct lttng_filter_bytecode_node {
- 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;
-};
-
-/*
- * Filter return value masks.
- */
-enum lttng_filter_ret {
- LTTNG_FILTER_DISCARD = 0,
- LTTNG_FILTER_RECORD_FLAG = (1ULL << 0),
- /* Other bits are kept for future use. */
-};
-
-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);
- int link_failed;
- struct list_head node; /* list of bytecode runtime in event */
- struct lttng_ctx *ctx;
-};
-
-/*
- * Objects in a linked-list of enablers, owned by an event.
- */
-struct lttng_enabler_ref {
- struct list_head node; /* enabler ref list */
- struct lttng_enabler *ref; /* backward ref */
-};
-
struct lttng_uprobe_handler {
- struct lttng_event *event;
+ struct lttng_kernel_event_common *event;
loff_t offset;
struct uprobe_consumer up_consumer;
struct list_head node;
char *symbol_name;
};
+struct lttng_uprobe {
+ struct inode *inode;
+ struct list_head head;
+};
+
enum lttng_syscall_entryexit {
LTTNG_SYSCALL_ENTRY,
LTTNG_SYSCALL_EXIT,
};
/*
- * lttng_event structure is referred to by the tracing fast path. It must be
- * kept small.
+ * Result of the run_filter() callback.
*/
-struct lttng_event {
- enum lttng_event_type evtype; /* First field. */
- 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 lttng_kprobe kprobe;
- struct {
- struct lttng_krp *lttng_krp;
- char *symbol_name;
- } kretprobe;
- struct {
- struct inode *inode;
- struct list_head head;
- } uprobe;
- struct {
- char *syscall_name;
- enum lttng_syscall_entryexit entryexit;
- enum lttng_syscall_abi abi;
- } syscall;
- } u;
- struct list_head list; /* Event list in session */
- unsigned int metadata_dumped:1;
-
- /* Backward references: list of lttng_enabler_ref (ref to enablers) */
- struct list_head enablers_ref_head;
- struct hlist_node hlist; /* session ht of events */
- int registered; /* has reg'd tracepoint probe */
- /* list of struct lttng_bytecode_runtime, sorted by seqnum */
- struct list_head bytecode_runtime_head;
- int has_enablers_without_bytecode;
+enum lttng_kernel_event_filter_result {
+ LTTNG_KERNEL_EVENT_FILTER_ACCEPT = 0,
+ LTTNG_KERNEL_EVENT_FILTER_REJECT = 1,
};
-// 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;
- int enabled;
- int registered; /* has reg'd tracepoint probe */
- const struct lttng_event_desc *desc;
- void *filter;
- struct list_head list; /* event_notifier list in event_notifier group */
-
- enum lttng_kernel_instrumentation instrumentation;
- union {
- struct lttng_kprobe kprobe;
- } 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;
- int has_enablers_without_bytecode;
-
- void (*send_notification)(struct lttng_event_notifier *event_notifier);
- struct lttng_event_notifier_group *group; /* Weak ref */
-};
+struct lttng_kernel_event_common_private;
-enum lttng_enabler_format_type {
- LTTNG_ENABLER_FORMAT_STAR_GLOB,
- LTTNG_ENABLER_FORMAT_NAME,
+enum lttng_kernel_event_type {
+ LTTNG_KERNEL_EVENT_TYPE_RECORDER = 0,
+ LTTNG_KERNEL_EVENT_TYPE_NOTIFIER = 1,
};
-/*
- * Enabler field, within whatever object is enabling an event. Target of
- * backward reference.
- */
-struct lttng_enabler {
- enum lttng_event_type evtype; /* First field. */
+struct lttng_kernel_event_common {
+ struct lttng_kernel_event_common_private *priv; /* Private event interface */
- enum lttng_enabler_format_type format_type;
+ enum lttng_kernel_event_type type;
+ /* Get child with container_of(). */
- /* head list of struct lttng_ust_filter_bytecode_node */
- struct list_head filter_bytecode_head;
+ int enabled;
+ int eval_filter; /* Need to evaluate filters */
+ int (*run_filter)(const struct lttng_kernel_event_common *event,
+ const char *stack_data,
+ struct lttng_kernel_probe_ctx *probe_ctx,
+ void *filter_ctx);
+};
- struct lttng_kernel_event event_param;
- unsigned int enabled:1;
+struct lttng_kernel_event_recorder_private;
- uint64_t user_token; /* User-provided token. */
-};
+struct lttng_kernel_event_recorder {
+ struct lttng_kernel_event_common parent;
+ struct lttng_kernel_event_recorder_private *priv; /* Private event record interface */
-struct lttng_event_enabler {
- struct lttng_enabler base;
- struct list_head node; /* per-session list of enablers */
struct lttng_channel *chan;
- /*
- * Unused, but kept around to make it explicit that the tracer can do
- * it.
- */
- struct lttng_ctx *ctx;
};
-struct lttng_event_notifier_enabler {
- struct lttng_enabler base;
- struct list_head node; /* List of event_notifier enablers */
- struct lttng_event_notifier_group *group;
+struct lttng_kernel_notification_ctx {
+ int eval_capture; /* Capture evaluation available. */
};
-static inline
-struct lttng_enabler *lttng_event_enabler_as_enabler(
- struct lttng_event_enabler *event_enabler)
-{
- return &event_enabler->base;
-}
+struct lttng_kernel_event_notifier_private;
-static inline
-struct lttng_enabler *lttng_event_notifier_enabler_as_enabler(
- struct lttng_event_notifier_enabler *event_notifier_enabler)
-{
- return &event_notifier_enabler->base;
-}
+struct lttng_kernel_event_notifier {
+ struct lttng_kernel_event_common parent;
+ struct lttng_kernel_event_notifier_private *priv; /* Private event notifier interface */
+
+ int eval_capture; /* Need to evaluate capture */
+ void (*notification_send)(struct lttng_kernel_event_notifier *event_notifier,
+ const char *stack_data,
+ struct lttng_kernel_probe_ctx *probe_ctx,
+ struct lttng_kernel_notification_ctx *notif_ctx);
+};
struct lttng_channel_ops {
struct channel *(*channel_create)(const char *name,
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);
+ int (*event_reserve)(struct lib_ring_buffer_ctx *ctx);
void (*event_commit)(struct lib_ring_buffer_ctx *ctx);
void (*event_write)(struct lib_ring_buffer_ctx *ctx, const void *src,
size_t len);
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
unsigned int id;
struct channel *chan; /* Channel buffers */
int enabled;
- struct lttng_ctx *ctx;
+ struct lttng_kernel_ctx *ctx;
/* Event ID management */
struct lttng_session *session;
struct file *file; /* File associated to channel */
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 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;
+ 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 header_type; /* 0: unset, 1: compact, 2: large */
enum channel_type channel_type;
- int syscall_all;
+ int syscall_all_entry;
+ int syscall_all_exit;
unsigned int metadata_dumped:1,
sys_enter_registered:1,
sys_exit_registered:1,
struct list_head enablers_head;
/* Hash table of events */
struct lttng_event_ht events_ht;
- char name[LTTNG_KERNEL_SESSION_NAME_LEN];
- char creation_time[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
+ char name[LTTNG_KERNEL_ABI_SESSION_NAME_LEN];
+ char creation_time[LTTNG_KERNEL_ABI_SESSION_CREATION_TIME_ISO8601_LEN];
+};
+
+struct lttng_counter {
+ struct file *file; /* File associated to counter. */
+ struct file *owner;
+ struct lttng_counter_transport *transport;
+ struct lib_counter *counter;
+ struct lttng_counter_ops *ops;
};
struct lttng_event_notifier_group {
struct list_head enablers_head; /* List of enablers */
struct list_head event_notifiers_head; /* List of event notifier */
struct lttng_event_notifier_ht event_notifiers_ht; /* Hash table of event notifiers */
- struct lttng_ctx *ctx; /* Contexts for filters. */
struct lttng_channel_ops *ops;
struct lttng_transport *transport;
struct channel *chan; /* Ring buffer channel for event notifier group. */
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_kernel_event_notifier *sc_unknown; /* for unknown syscalls */
+ struct lttng_kernel_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 {
struct list_head *lttng_get_probe_list_head(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);
-
-int lttng_event_enabler_enable(struct lttng_event_enabler *event_enabler);
-int lttng_event_enabler_disable(struct lttng_event_enabler *event_enabler);
-struct lttng_event_notifier_enabler *lttng_event_notifier_enabler_create(
- struct lttng_event_notifier_group *event_notifier_group,
- enum lttng_enabler_format_type format_type,
- struct lttng_kernel_event_notifier *event_notifier_param);
-
-int lttng_event_notifier_enabler_enable(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
-int lttng_event_notifier_enabler_disable(
- struct lttng_event_notifier_enabler *event_notifier_enabler);
int lttng_fix_pending_events(void);
int lttng_fix_pending_event_notifiers(void);
int lttng_session_active(void);
int lttng_session_statedump(struct lttng_session *session);
void metadata_cache_destroy(struct kref *kref);
+struct lttng_counter *lttng_kernel_counter_create(
+ const char *counter_transport_name, size_t number_dimensions,
+ const size_t *dimensions_sizes);
+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_abi_counter_conf *error_counter_conf);
void lttng_event_notifier_group_destroy(
struct lttng_event_notifier_group *event_notifier_group);
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 *event_desc,
- enum lttng_kernel_instrumentation itype);
-struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
- struct lttng_kernel_event *event_param,
- 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);
-
-struct lttng_event_notifier *lttng_event_notifier_create(
- const struct lttng_event_desc *event_notifier_desc,
+struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_channel *chan,
+ struct lttng_kernel_abi_event *event_param,
+ const struct lttng_kernel_event_desc *event_desc,
+ enum lttng_kernel_abi_instrumentation itype);
+struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_channel *chan,
+ struct lttng_kernel_abi_event *event_param,
+ const struct lttng_kernel_event_desc *event_desc,
+ enum lttng_kernel_abi_instrumentation itype);
+struct lttng_kernel_event_recorder *lttng_event_compat_old_create(struct lttng_channel *chan,
+ struct lttng_kernel_abi_old_event *old_event_param,
+ const struct lttng_kernel_event_desc *internal_desc);
+
+struct lttng_kernel_event_notifier *lttng_event_notifier_create(
+ const struct lttng_kernel_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);
-struct lttng_event_notifier *_lttng_event_notifier_create(
- const struct lttng_event_desc *event_notifier_desc,
+ struct lttng_kernel_abi_event_notifier *event_notifier_param,
+ enum lttng_kernel_abi_instrumentation itype);
+struct lttng_kernel_event_notifier *_lttng_event_notifier_create(
+ const struct lttng_kernel_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);
+ struct lttng_kernel_abi_event_notifier *event_notifier_param,
+ enum lttng_kernel_abi_instrumentation itype);
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);
-
-int lttng_event_notifier_enable(struct lttng_event_notifier *event_notifier);
-int lttng_event_notifier_disable(struct lttng_event_notifier *event_notifier);
+int lttng_event_enable(struct lttng_kernel_event_common *event);
+int lttng_event_disable(struct lttng_kernel_event_common *event);
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_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_desc_get(const char *name);
-void lttng_event_desc_put(const struct lttng_event_desc *desc);
+int lttng_probe_register(struct lttng_kernel_probe_desc *desc);
+void lttng_probe_unregister(struct lttng_kernel_probe_desc *desc);
+const struct lttng_kernel_event_desc *lttng_event_desc_get(const char *name);
+void lttng_event_desc_put(const struct lttng_kernel_event_desc *desc);
int lttng_probes_init(void);
void lttng_probes_exit(void);
void lttng_clock_ref(void);
void lttng_clock_unref(void);
-#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,
- struct lttng_event *event);
-int lttng_syscall_filter_disable(struct lttng_channel *chan,
- struct lttng_event *event);
-long lttng_channel_syscall_mask(struct lttng_channel *channel,
- struct lttng_kernel_syscall_mask __user *usyscall_mask);
-#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;
-}
-
-static inline int lttng_syscalls_destroy(struct lttng_channel *chan)
-{
- return 0;
-}
-
-static inline int lttng_syscall_filter_enable(struct lttng_channel *chan,
- struct lttng_event *event);
-{
- return -ENOSYS;
-}
-
-static inline int lttng_syscall_filter_disable(struct lttng_channel *chan,
- struct lttng_event *event);
-{
- return -ENOSYS;
-}
-
-static inline long lttng_channel_syscall_mask(struct lttng_channel *channel,
- struct lttng_kernel_syscall_mask __user *usyscall_mask)
-{
- 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,
- struct lttng_kernel_filter_bytecode __user *bytecode);
-int lttng_event_notifier_enabler_attach_bytecode(
- struct lttng_event_notifier_enabler *event_notifier_enabler,
- struct lttng_kernel_filter_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);
+void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event);
int lttng_probes_init(void);
-extern struct lttng_ctx *lttng_static_ctx;
-
-int lttng_context_init(void);
-void lttng_context_exit(void);
-struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
-ssize_t lttng_append_context_index(struct lttng_ctx **ctx_p);
-struct lttng_ctx_field *lttng_get_context_field_from_index(struct lttng_ctx *ctx,
- size_t index);
-void lttng_context_update(struct lttng_ctx *ctx);
-int lttng_find_context(struct lttng_ctx *ctx, const char *name);
-int lttng_get_context_index(struct lttng_ctx *ctx, const char *name);
-void lttng_remove_context_field(struct lttng_ctx **ctx,
- struct lttng_ctx_field *field);
-void lttng_remove_context_field_index(struct lttng_ctx **ctx_p, size_t index);
-void lttng_destroy_context(struct lttng_ctx *ctx);
-int lttng_add_pid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_cpu_id_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);
-int lttng_add_interruptible_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_need_reschedule_to_ctx(struct lttng_ctx **ctx);
-#if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT)
-int lttng_add_preemptible_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_preemptible_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-#ifdef CONFIG_PREEMPT_RT_FULL
-int lttng_add_migratable_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_migratable_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-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_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0))
-int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_IPC_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_NET_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_PID_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_USER_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_UTS_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
-int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-#if defined(CONFIG_TIME_NS) && \
- (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
-int lttng_add_time_ns_to_ctx(struct lttng_ctx **ctx);
-#else
-static inline
-int lttng_add_time_ns_to_ctx(struct lttng_ctx **ctx)
-{
- return -ENOSYS;
-}
-#endif
-
-int lttng_add_uid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_euid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_suid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_gid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_egid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_sgid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vuid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_veuid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vsuid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vgid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vegid_to_ctx(struct lttng_ctx **ctx);
-int lttng_add_vsgid_to_ctx(struct lttng_ctx **ctx);
-
-#if defined(CONFIG_PERF_EVENTS)
-int lttng_add_perf_counter_to_ctx(uint32_t type,
- uint64_t config,
- const char *name,
- struct lttng_ctx **ctx);
-int lttng_cpuhp_perf_counter_online(unsigned int cpu,
- struct lttng_cpuhp_node *node);
-int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
- struct lttng_cpuhp_node *node);
-#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;
-}
-static inline
-int lttng_cpuhp_perf_counter_online(unsigned int cpu,
- struct lttng_cpuhp_node *node)
-{
- return 0;
-}
-static inline
-int lttng_cpuhp_perf_counter_dead(unsigned int cpu,
- struct lttng_cpuhp_node *node)
-{
- return 0;
-}
-#endif
-
int lttng_logger_init(void);
void lttng_logger_exit(void);
const char *symbol_name,
uint64_t offset,
uint64_t addr,
- struct lttng_event *event);
-void lttng_kprobes_unregister_event(struct lttng_event *event);
-void lttng_kprobes_destroy_event_private(struct lttng_event *event);
+ struct lttng_kernel_event_recorder *event);
+void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event);
+void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *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);
+ struct lttng_kernel_event_notifier *event_notifier);
+void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
+void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
#else
static inline
int lttng_kprobes_register_event(const char *name,
const char *symbol_name,
uint64_t offset,
uint64_t addr,
- struct lttng_event *event)
+ struct lttng_kernel_event_recorder *event)
{
return -ENOSYS;
}
static inline
-void lttng_kprobes_unregister_event(struct lttng_event *event)
+void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event)
{
}
static inline
-void lttng_kprobes_destroy_event_private(struct lttng_event *event)
+void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
{
}
int lttng_kprobes_register_event_notifier(const char *symbol_name,
uint64_t offset,
uint64_t addr,
- struct lttng_event_notifier *event_notifier)
+ struct lttng_kernel_event_notifier *event_notifier)
{
return -ENOSYS;
}
static inline
-void lttng_kprobes_unregister_event_notifier(struct lttng_event_notifier *event_notifier)
+void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
{
}
static inline
-void lttng_kprobes_destroy_event_notifier_private(struct lttng_event_notifier *event_notifier)
+void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
{
}
#endif
-int lttng_event_add_callsite(struct lttng_event *event,
- struct lttng_kernel_event_callsite *callsite);
+int lttng_event_add_callsite(struct lttng_kernel_event_common *event,
+ struct lttng_kernel_abi_event_callsite __user *callsite);
#ifdef CONFIG_UPROBES
-int lttng_uprobes_register(const char *name,
- int fd, struct lttng_event *event);
-int lttng_uprobes_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);
+int lttng_uprobes_register_event(const char *name,
+ int fd, struct lttng_kernel_event_recorder *event);
+int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
+ struct lttng_kernel_abi_event_callsite __user *callsite);
+void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event);
+void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event);
+int lttng_uprobes_register_event_notifier(const char *name,
+ int fd, struct lttng_kernel_event_notifier *event_notifier);
+void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier);
+void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier);
#else
static inline
-int lttng_uprobes_register(const char *name,
- int fd, struct lttng_event *event)
+int lttng_uprobes_register_event(const char *name,
+ int fd, struct lttng_kernel_event_recorder *event)
{
return -ENOSYS;
}
static inline
-int lttng_uprobes_add_callsite(struct lttng_event *event,
- struct lttng_kernel_event_callsite *callsite)
+int lttng_uprobes_event_add_callsite(struct lttng_kernel_event_common *event,
+ struct lttng_kernel_abi_event_callsite __user *callsite)
{
return -ENOSYS;
}
static inline
-void lttng_uprobes_unregister(struct lttng_event *event)
+void lttng_uprobes_unregister_event(struct lttng_kernel_event_recorder *event)
{
}
static inline
-void lttng_uprobes_destroy_private(struct lttng_event *event)
+void lttng_uprobes_destroy_event_private(struct lttng_kernel_event_recorder *event)
+{
+}
+
+static inline
+int lttng_uprobes_register_event_notifier(const char *name,
+ int fd, struct lttng_kernel_event_notifier *event_notifier)
+{
+ return -ENOSYS;
+}
+
+static inline
+void lttng_uprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier)
+{
+}
+
+static inline
+void lttng_uprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier)
{
}
#endif
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);
-int lttng_kretprobes_event_enable_state(struct lttng_event *event,
+ struct lttng_kernel_event_recorder *event_entry,
+ struct lttng_kernel_event_recorder *event_exit);
+void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event);
+void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event);
+int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
int enable);
#else
static inline
const char *symbol_name,
uint64_t offset,
uint64_t addr,
- struct lttng_event *event_entry,
- struct lttng_event *event_exit)
+ struct lttng_kernel_event_recorder *event_entry,
+ struct lttng_kernel_event_recorder *event_exit)
{
return -ENOSYS;
}
static inline
-void lttng_kretprobes_unregister(struct lttng_event *event)
+void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event)
{
}
static inline
-void lttng_kretprobes_destroy_private(struct lttng_event *event)
+void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event)
{
}
static inline
-int lttng_kretprobes_event_enable_state(struct lttng_event *event,
+int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event,
int enable)
{
return -ENOSYS;
}
#endif
-int lttng_calibrate(struct lttng_kernel_calibrate *calibrate);
+int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate);
extern const struct file_operations lttng_tracepoint_list_fops;
extern const struct file_operations lttng_syscall_list_fops;
-#define TRACEPOINT_HAS_DATA_ARG
-
-static inline bool lttng_is_bytewise_integer(const struct lttng_type *type)
-{
- if (type->atype != atype_integer)
- return false;
- switch (type->u.integer.size) {
- case 8: /* Fall-through. */
- case 16: /* Fall-through. */
- case 32: /* Fall-through. */
- case 64:
- break;
- default:
- return false;
- }
- return true;
-}
-
#endif /* _LTTNG_EVENTS_H */
projects / lttng-modules.git / blobdiff