X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fevents.h;h=4b68836710fea6a1bdd3ad04ff9f2fd88240bbab;hb=e978f27486ddac0b9cbea5577fc413c67bc61141;hp=c396e790d76e4663a0beac722c1112e9cc772535;hpb=a775608d0d1d6142c80c26b21ff79bf7e04d8e53;p=lttng-modules.git diff --git a/include/lttng/events.h b/include/lttng/events.h index c396e790..4b688367 100644 --- a/include/lttng/events.h +++ b/include/lttng/events.h @@ -109,7 +109,7 @@ struct lttng_kernel_type_array { struct lttng_kernel_type_sequence { struct lttng_kernel_type_common parent; - const char *length_name; /* Length field name. */ + 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; @@ -124,7 +124,7 @@ struct lttng_kernel_type_struct { struct lttng_kernel_type_variant { struct lttng_kernel_type_common parent; - const char *tag_name; + 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; @@ -246,17 +246,6 @@ struct lttng_kernel_event_field { _fields \ ) -#define lttng_kernel_static_ctx_field(_event_field, _get_size, _get_size_arg, _record, _get_value, _destroy, _priv) \ - __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_ctx_field, { \ - .event_field = (_event_field), \ - .get_size = (_get_size), \ - .get_size_arg = (_get_size_arg), \ - .record = (_record), \ - .get_value = (_get_value), \ - .destroy = (_destroy), \ - .priv = (_priv), \ - }) - #define lttng_kernel_static_enum_entry_value(_string, _value) \ __LTTNG_COMPOUND_LITERAL(const struct lttng_kernel_enum_entry, { \ .start = { \ @@ -303,58 +292,11 @@ struct lttng_kernel_event_field { } \ }), -union lttng_ctx_value { - int64_t s64; - const char *str; - double d; -}; - -/* - * We need to keep this perf counter field separately from struct - * lttng_kernel_ctx_field because cpu hotplug needs fixed-location addresses. - */ -struct lttng_perf_counter_field { -#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 notifier_block nb; - int hp_enable; -#endif - struct perf_event_attr *attr; - struct perf_event **e; /* per-cpu array */ - char *name; - struct lttng_kernel_event_field *event_field; -}; - -struct lttng_probe_ctx { +struct lttng_kernel_probe_ctx { struct lttng_kernel_event_common *event; uint8_t interruptible; }; -struct lttng_kernel_ctx_field { - const struct lttng_kernel_event_field *event_field; - size_t (*get_size)(size_t offset); - size_t (*get_size_arg)(size_t offset, struct lttng_kernel_ctx_field *field, - struct lib_ring_buffer_ctx *ctx, - struct lttng_channel *chan); - void (*record)(struct lttng_kernel_ctx_field *field, - struct lib_ring_buffer_ctx *ctx, - struct lttng_channel *chan); - void (*get_value)(struct lttng_kernel_ctx_field *field, - struct lttng_probe_ctx *lttng_probe_ctx, - union lttng_ctx_value *value); - void (*destroy)(struct lttng_kernel_ctx_field *field); - void *priv; -}; - -struct lttng_kernel_ctx { - struct lttng_kernel_ctx_field *fields; - unsigned int nr_fields; - unsigned int allocated_fields; - size_t largest_align; /* in bytes */ -}; - struct lttng_kernel_event_desc { const char *event_name; /* lttng-modules name */ const char *event_kname; /* Linux kernel name (tracepoints) */ @@ -374,86 +316,12 @@ struct lttng_kernel_probe_desc { int lazy; /* lazy registration */ }; -struct lttng_krp; /* Kretprobe handling */ - -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 { - uint32_t len; - uint32_t reloc_offset; - uint64_t seqnum; - char data[]; - } bc; -}; - /* - * Bytecode interpreter return value masks. + * Result of the run_filter() callback. */ -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_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, - const char *capture_stack_data, - struct lttng_probe_ctx *lttng_probe_ctx, - struct lttng_interpreter_output *output); - } interpreter_funcs; - int link_failed; - struct list_head node; /* list of bytecode runtime in event */ - struct lttng_kernel_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_kernel_event_common *event; - loff_t offset; - struct uprobe_consumer up_consumer; - struct list_head node; -}; - -struct lttng_kprobe { - struct kprobe kp; - char *symbol_name; -}; - -struct lttng_uprobe { - struct inode *inode; - struct list_head head; -}; - -enum lttng_syscall_entryexit { - LTTNG_SYSCALL_ENTRY, - LTTNG_SYSCALL_EXIT, -}; - -enum lttng_syscall_abi { - LTTNG_SYSCALL_ABI_NATIVE, - LTTNG_SYSCALL_ABI_COMPAT, +enum lttng_kernel_event_filter_result { + LTTNG_KERNEL_EVENT_FILTER_ACCEPT = 0, + LTTNG_KERNEL_EVENT_FILTER_REJECT = 1, }; struct lttng_kernel_event_common_private; @@ -471,8 +339,9 @@ struct lttng_kernel_event_common { int enabled; int eval_filter; /* Need to evaluate filters */ - int (*run_filter)(struct lttng_kernel_event_common *event, + int (*run_filter)(const struct lttng_kernel_event_common *event, const char *stack_data, + struct lttng_kernel_probe_ctx *probe_ctx, void *filter_ctx); }; @@ -498,63 +367,10 @@ struct lttng_kernel_event_notifier { int eval_capture; /* Need to evaluate capture */ void (*notification_send)(struct lttng_kernel_event_notifier *event_notifier, const char *stack_data, - struct lttng_probe_ctx *probe_ctx, + struct lttng_kernel_probe_ctx *probe_ctx, struct lttng_kernel_notification_ctx *notif_ctx); }; -enum lttng_enabler_format_type { - LTTNG_ENABLER_FORMAT_STAR_GLOB, - LTTNG_ENABLER_FORMAT_NAME, -}; - -/* - * Enabler field, within whatever object is enabling an event. Target of - * backward reference. - */ -struct lttng_enabler { - enum lttng_enabler_format_type format_type; - - /* head list of struct lttng_bytecode_node */ - struct list_head filter_bytecode_head; - - struct lttng_kernel_abi_event event_param; - unsigned int enabled:1; - - uint64_t user_token; /* User-provided token. */ -}; - -struct lttng_event_enabler { - struct lttng_enabler base; - struct list_head node; /* per-session list of enablers */ - struct lttng_channel *chan; -}; - -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) -{ - return &event_enabler->base; -} - -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_channel_ops { struct channel *(*channel_create)(const char *name, void *priv, @@ -566,8 +382,7 @@ struct lttng_channel_ops { 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); @@ -844,22 +659,6 @@ void lttng_unlock_sessions(void); 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_abi_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_abi_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); @@ -979,453 +778,18 @@ int lttng_session_list_tracker_ids(struct lttng_session *session, void lttng_clock_ref(void); void lttng_clock_unref(void); -int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc, - struct lttng_enabler *enabler); - -#if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) -int lttng_syscalls_register_event(struct lttng_event_enabler *event_enabler); -int lttng_syscalls_unregister_channel(struct lttng_channel *chan); -int lttng_syscalls_destroy_event(struct lttng_channel *chan); -int lttng_syscall_filter_enable_event( - struct lttng_channel *chan, - struct lttng_kernel_event_recorder *event); -int lttng_syscall_filter_disable_event( - struct lttng_channel *chan, - struct lttng_kernel_event_recorder *event); - -long lttng_channel_syscall_mask(struct lttng_channel *channel, - struct lttng_kernel_abi_syscall_mask __user *usyscall_mask); - -int lttng_syscalls_register_event_notifier( - struct lttng_event_notifier_enabler *event_notifier_enabler); -int lttng_syscalls_create_matching_event_notifiers( - struct lttng_event_notifier_enabler *event_notifier_enabler); -int lttng_syscalls_unregister_event_notifier_group(struct lttng_event_notifier_group *group); -int lttng_syscall_filter_enable_event_notifier(struct lttng_kernel_event_notifier *event_notifier); -int lttng_syscall_filter_disable_event_notifier(struct lttng_kernel_event_notifier *event_notifier); -#else -static inline int lttng_syscalls_register_event( - struct lttng_event_enabler *event_enabler) -{ - return -ENOSYS; -} - -static inline int lttng_syscalls_unregister_channel(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_event(struct lttng_channel *chan, - struct lttng_kernel_event_recorder *event); -{ - return -ENOSYS; -} - -static inline int lttng_syscall_filter_disable_event(struct lttng_channel *chan, - struct lttng_kernel_event_recorder *event); -{ - return -ENOSYS; -} - -static inline long lttng_channel_syscall_mask(struct lttng_channel *channel, - struct lttng_kernel_syscall_mask __user *usyscall_mask) -{ - return -ENOSYS; -} - -static inline int lttng_syscalls_register_event_notifier( - struct lttng_event_notifier_group *group) -{ - 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 - -int lttng_event_enabler_attach_filter_bytecode(struct lttng_event_enabler *event_enabler, - struct lttng_kernel_abi_filter_bytecode __user *bytecode); -int lttng_event_notifier_enabler_attach_filter_bytecode( - struct lttng_event_notifier_enabler *event_notifier_enabler, - struct lttng_kernel_abi_filter_bytecode __user *bytecode); -int lttng_event_notifier_enabler_attach_capture_bytecode( - struct lttng_event_notifier_enabler *event_notifier_enabler, - struct lttng_kernel_abi_capture_bytecode __user *bytecode); - -void lttng_enabler_link_bytecode(const struct lttng_kernel_event_desc *event_desc, - struct lttng_kernel_ctx *ctx, - struct list_head *instance_bytecode_runtime_head, - struct list_head *enabler_bytecode_runtime_head); void lttng_free_event_filter_runtime(struct lttng_kernel_event_common *event); int lttng_probes_init(void); -extern struct lttng_kernel_ctx *lttng_static_ctx; - -int lttng_context_init(void); -void lttng_context_exit(void); -int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p, - const struct lttng_kernel_ctx_field *f); -void lttng_kernel_context_remove_last(struct lttng_kernel_ctx **ctx_p); -struct lttng_kernel_ctx_field *lttng_kernel_get_context_field_from_index(struct lttng_kernel_ctx *ctx, - size_t index); -int lttng_kernel_find_context(struct lttng_kernel_ctx *ctx, const char *name); -int lttng_kernel_get_context_index(struct lttng_kernel_ctx *ctx, const char *name); -void lttng_kernel_destroy_context(struct lttng_kernel_ctx *ctx); -int lttng_add_pid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_cpu_id_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_prio_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_nice_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vpid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_tid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vtid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_ppid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vppid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_hostname_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_interruptible_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_need_reschedule_to_ctx(struct lttng_kernel_ctx **ctx); -#if defined(CONFIG_PREEMPT_RT_FULL) || defined(CONFIG_PREEMPT) -int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_preemptible_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif -#ifdef CONFIG_PREEMPT_RT_FULL -int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_migratable_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -int lttng_add_callstack_to_ctx(struct lttng_kernel_ctx **ctx, int type); - -#if defined(CONFIG_CGROUPS) && \ - ((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_kernel_ctx **ctx); -#else -static inline -int lttng_add_cgroup_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if defined(CONFIG_IPC_NS) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) -int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_ipc_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) -int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_mnt_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if defined(CONFIG_NET_NS) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) -int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_net_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if defined(CONFIG_PID_NS) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) -int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_pid_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if defined(CONFIG_USER_NS) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) -int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_user_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if defined(CONFIG_UTS_NS) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) -int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_uts_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -#if defined(CONFIG_TIME_NS) && \ - (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) -int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx); -#else -static inline -int lttng_add_time_ns_to_ctx(struct lttng_kernel_ctx **ctx) -{ - return -ENOSYS; -} -#endif - -int lttng_add_uid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_euid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_suid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_gid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_egid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_sgid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vuid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_veuid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vsuid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vgid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vegid_to_ctx(struct lttng_kernel_ctx **ctx); -int lttng_add_vsgid_to_ctx(struct lttng_kernel_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_kernel_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_kernel_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); extern int lttng_statedump_start(struct lttng_session *session); -#ifdef CONFIG_KPROBES -int lttng_kprobes_register_event(const char *name, - const char *symbol_name, - uint64_t offset, - uint64_t addr, - 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_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_kernel_event_recorder *event) -{ - return -ENOSYS; -} - -static inline -void lttng_kprobes_unregister_event(struct lttng_kernel_event_recorder *event) -{ -} - -static inline -void lttng_kprobes_destroy_event_private(struct lttng_kernel_event_recorder *event) -{ -} - -static inline -int lttng_kprobes_register_event_notifier(const char *symbol_name, - uint64_t offset, - uint64_t addr, - struct lttng_kernel_event_notifier *event_notifier) -{ - return -ENOSYS; -} - -static inline -void lttng_kprobes_unregister_event_notifier(struct lttng_kernel_event_notifier *event_notifier) -{ -} - -static inline -void lttng_kprobes_destroy_event_notifier_private(struct lttng_kernel_event_notifier *event_notifier) -{ -} -#endif - -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_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_event(const char *name, - int fd, struct lttng_kernel_event_recorder *event) -{ - return -ENOSYS; -} - -static inline -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_event(struct lttng_kernel_event_recorder *event) -{ -} - -static inline -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 - -#ifdef CONFIG_KRETPROBES -int lttng_kretprobes_register(const char *name, - const char *symbol_name, - uint64_t offset, - uint64_t addr, - 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 -int lttng_kretprobes_register(const char *name, - const char *symbol_name, - uint64_t offset, - uint64_t addr, - struct lttng_kernel_event_recorder *event_entry, - struct lttng_kernel_event_recorder *event_exit) -{ - return -ENOSYS; -} - -static inline -void lttng_kretprobes_unregister(struct lttng_kernel_event_recorder *event) -{ -} - -static inline -void lttng_kretprobes_destroy_private(struct lttng_kernel_event_recorder *event) -{ -} - -static inline -int lttng_kretprobes_event_enable_state(struct lttng_kernel_event_common *event, - int enable) -{ - return -ENOSYS; -} -#endif - 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 - #endif /* _LTTNG_EVENTS_H */