X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=lttng-events.h;h=1b4f39c40ce22060e068f13bf31754acc738faeb;hb=808dd6dff45ca15182f16635928fec621fe6cee4;hp=b3e94a0c60b670acd814c21010be72cc0c128b86;hpb=5594698f9c8ad13e0964c67946d1867df7757dae;p=lttng-modules.git

diff --git a/lttng-events.h b/lttng-events.h
index b3e94a0c..1b4f39c4 100644
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -71,15 +71,16 @@ struct lttng_enum_entry {
 	const char *string;
 };
 
-#define __type_integer(_type, _byte_order, _base, _encoding)	\
+#define __type_integer(_type, _size, _alignment, _signedness,	\
+		_byte_order, _base, _encoding)	\
 	{							\
 	    .atype = atype_integer,				\
 	    .u.basic.integer =					\
 		{						\
-		  .size = sizeof(_type) * CHAR_BIT,		\
-		  .alignment = lttng_alignof(_type) * CHAR_BIT,	\
-		  .signedness = lttng_is_signed_type(_type),	\
-		  .reverse_byte_order = _byte_order != __BYTE_ORDER,	\
+		  .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,		\
 		},						\
@@ -118,10 +119,12 @@ struct lttng_type {
 		struct {
 			struct lttng_basic_type elem_type;
 			unsigned int length;		/* num. elems. */
+			unsigned int elem_alignment;	/* alignment override */
 		} array;
 		struct {
 			struct lttng_basic_type length_type;
 			struct lttng_basic_type elem_type;
+			unsigned int elem_alignment;	/* alignment override */
 		} sequence;
 	} u;
 };
@@ -159,6 +162,11 @@ struct lttng_perf_counter_field {
 	struct perf_event **e;	/* per-cpu array */
 };
 
+struct lttng_probe_ctx {
+	struct lttng_event *event;
+	uint8_t interruptible;
+};
+
 struct lttng_ctx_field {
 	struct lttng_event_field event_field;
 	size_t (*get_size)(size_t offset);
@@ -166,6 +174,7 @@ struct lttng_ctx_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;
@@ -228,7 +237,8 @@ enum lttng_filter_ret {
 struct lttng_bytecode_runtime {
 	/* Associated bytecode */
 	struct lttng_filter_bytecode_node *bc;
-	uint64_t (*filter)(void *filter_data, const char *filter_stack_data);
+	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 */
 };
@@ -421,6 +431,7 @@ struct lttng_metadata_stream {
 	wait_queue_head_t read_wait;	/* Reader buffer-level wait queue */
 	struct list_head list;		/* Stream list */
 	struct lttng_transport *transport;
+	uint64_t version;		/* Current version of the metadata cache */
 };
 
 
@@ -466,7 +477,8 @@ struct lttng_metadata_cache {
 	struct kref refcount;		/* Metadata cache usage */
 	struct list_head metadata_stream;	/* Metadata stream list */
 	uuid_le uuid;			/* Trace session unique ID (copy) */
-	struct mutex lock;
+	struct mutex lock;		/* Produce/consume lock */
+	uint64_t version;		/* Current version of the metadata */
 };
 
 void lttng_lock_sessions(void);
@@ -487,6 +499,7 @@ struct lttng_session *lttng_session_create(void);
 int lttng_session_enable(struct lttng_session *session);
 int lttng_session_disable(struct lttng_session *session);
 void lttng_session_destroy(struct lttng_session *session);
+int lttng_session_metadata_regenerate(struct lttng_session *session);
 void metadata_cache_destroy(struct kref *kref);
 
 struct lttng_channel *lttng_channel_create(struct lttng_session *session,
@@ -554,6 +567,9 @@ int lttng_session_untrack_pid(struct lttng_session *session, int pid);
 
 int lttng_session_list_tracker_pids(struct lttng_session *session);
 
+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);
@@ -621,6 +637,26 @@ 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
 #if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
 int lttng_add_perf_counter_to_ctx(uint32_t type,
 				  uint64_t config,
@@ -681,6 +717,8 @@ int lttng_kretprobes_register(const char *name,
 		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,
+	int enable);
 #else
 static inline
 int lttng_kretprobes_register(const char *name,
@@ -702,6 +740,13 @@ static inline
 void lttng_kretprobes_destroy_private(struct lttng_event *event)
 {
 }
+
+static inline
+int lttng_kretprobes_event_enable_state(struct lttng_event *event,
+	int enable)
+{
+	return -ENOSYS;
+}
 #endif
 
 #ifdef CONFIG_DYNAMIC_FTRACE