LTTNG_TYPE_ENABLER = 1,
};
-struct lttng_filter_bytecode_node {
+enum lttng_bytecode_node_type {
+ LTTNG_BYTECODE_NODE_TYPE_FILTER,
+};
+
+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_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);
+ } interpreter_funcs;
int link_failed;
struct list_head node; /* list of bytecode runtime in event */
struct lttng_ctx *ctx;
} kretprobe;
struct lttng_uprobe uprobe;
struct {
- char *syscall_name;
enum lttng_syscall_entryexit entryexit;
enum lttng_syscall_abi abi;
} syscall;
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;
+ struct list_head filter_bytecode_runtime_head;
int has_enablers_without_bytecode;
};
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;
int has_enablers_without_bytecode;
void (*send_notification)(struct lttng_event_notifier *event_notifier);
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 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 {
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_event(struct lttng_channel *chan, void *filter);
int lttng_syscalls_unregister_event(struct lttng_channel *chan);
int lttng_syscalls_destroy_event(struct lttng_channel *chan);
-int lttng_syscall_filter_enable_event(struct lttng_channel *chan,
+int lttng_syscall_filter_enable_event(
+ struct lttng_channel *chan,
struct lttng_event *event);
-int lttng_syscall_filter_disable_event(struct lttng_channel *chan,
+int lttng_syscall_filter_disable_event(
+ 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);
+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(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_event(
struct lttng_channel *chan, void *filter)
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(
+ 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);
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);
int lttng_probes_init(void);
projects / lttng-modules.git / blobdiff